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Subject: Induction of Potent Antitumor Immunity by Intratumoral Injection of Interleukin 23-Transduced Dendritic Cells -- Hu et al. 66 (17): 8887 -- Cancer Research
Date: Wed, 16 Jan 2008 17:55:07 +0100
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        =
</TD></TR></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE><FONT=20
size=3D-1>[<EM>Cancer Research</EM> 66, 8887-8896, September 1, =
2006]<BR>=A9 2006 <A=20
href=3D"http://cancerres.aacrjournals.org/misc/terms.shtml">American =
Association=20
for Cancer Research</A> </FONT><BR>
<TABLE cellSpacing=3D0 cellPadding=3D0>
  <TBODY>
  <TR>
    <TD>
      <HR noShade SIZE=3D1>

      <H3>Immunology</H3></TD></TR></TBODY></TABLE>
<H2>Induction of Potent Antitumor Immunity by Intratumoral Injection of=20
Interleukin 23=96Transduced Dendritic Cells =
</H2><STRONG></NOBR><NOBR>Jinwei=20
Hu<SUP>1</SUP></NOBR>, <NOBR>Xiangpeng Yuan<SUP>1</SUP></NOBR>, =
<NOBR>Maria L.=20
Belladonna<SUP>3</SUP></NOBR>, <NOBR>John M. Ong<SUP>1</SUP></NOBR>,=20
<NOBR>Sebastian Wachsmann-Hogiu<SUP>2</SUP></NOBR>, <NOBR>Daniel L.=20
Farkas<SUP>2</SUP></NOBR>, <NOBR>Keith L. Black<SUP>1</SUP></NOBR> and=20
<NOBR>John S. Yu<SUP>1</SUP></NOBR> </STRONG>
<P><FONT size=3D-1><SUP>1</SUP> Maxine Dunitz Neurosurgical Institute =
and=20
<SUP>2</SUP> Department of Surgery, Cedars-Sinai Medical Center, Los =
Angeles,=20
California and <SUP>3</SUP> Department of Experimental Medicine, =
University of=20
Perugia, Perugia, Italy </FONT>
<P><FONT size=3D-1><B>Requests for reprints:</B> John S. Yu, Maxine =
Dunitz=20
Neurosurgical Institute, Cedars-Sinai Medical Center, Suite 800 East, =
8631 West=20
3rd Street, Los Angeles, CA 90048. Phone: 310-423-0845; Fax: =
310-423-0810;=20
E-mail: <SPAN id=3Dem0>yuj{at}cshs.org</SPAN>
<SCRIPT type=3Dtext/javascript><!--=0A=
 var u =3D "yuj", d =3D "cshs.org"; =
document.getElementById("em0").innerHTML =3D '<a href=3D"mailto:' + u + =
'@' + d + '">' + u + '@' + d + '<\/a>'//--></SCRIPT>
.</FONT>
<P>
<P><A name=3DABS><!-- null --></A><BR clear=3Dright>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" bgColor=3D#e1e1e1>
  <TBODY>
  <TR>
    <TD vAlign=3Dcenter align=3Dleft width=3D"5%" bgColor=3D#ffffff><IMG =
height=3D21=20
      alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/rarrow.gif" =
width=3D10></TD>
    <TH vAlign=3Dcenter align=3Dleft width=3D"95%"><FONT =
size=3D+2>&nbsp;&nbsp;=20
      Abstract </FONT></TH></TR></TBODY></TABLE>
<TABLE cellPadding=3D5 align=3Dright border=3D1>
  <TBODY>
  <TR>
    <TH align=3Dleft><FONT size=3D-1><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#top=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Top<BR></A><IMG height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/dot.gif" =
width=3D11=20
      border=3D0><FONT color=3D#464c53>Abstract</FONT><BR><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
1"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      border=3D0>Introduction<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
2"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      border=3D0>Materials and Methods<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
3"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      border=3D0>Results<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
4"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      border=3D0>Discussion<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#BIB=
L"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      =
border=3D0>References<BR></A></FONT></TH></TR></TBODY></TABLE>&nbsp;<BR>D=
endritic=20
cells (DCs) are potent antigen-presenting cells that<SUP> </SUP>play a =
critical=20
role in priming immune responses to tumor. Interleukin<SUP> =
</SUP>(IL)-23 can=20
act directly on DC to promote immunogenic presentation<SUP> </SUP>of =
tumor=20
peptide <I>in vitro</I>. Here, we evaluated the combination<SUP> =
</SUP>of bone=20
marrow=96derived DC and IL-23 on the induction of<SUP> </SUP>antitumor =
immunity in=20
a mouse intracranial glioma model. DCs<SUP> </SUP>can be transduced by =
an=20
adenoviral vector coding single-chain<SUP> </SUP>mouse IL-23 to express =
high=20
levels of bioactive IL-23. Intratumoral<SUP> </SUP>implantation of=20
IL-23=96expressing DCs produced a protective<SUP> </SUP>effect on =
intracranial=20
tumor=96bearing mice. The mice consequently<SUP> </SUP>gained systemic =
immunity=20
against the same tumor rechallenge.<SUP> </SUP>The protective effect of=20
IL-23=96expressing DCs was comparable<SUP> </SUP>with or even better =
than that of=20
IL-12-expressing DCs. IL-23=96transduced<SUP> </SUP>DC (DC-IL-23) =
treatment=20
resulted in robust intratumoral CD8<SUP>+</SUP><SUP> </SUP>and =
CD4<SUP>+</SUP>=20
T-cell infiltration and induced a specific TH1-type<SUP> </SUP>response =
to the=20
tumor in regional lymph nodes and spleen at<SUP> </SUP>levels greater =
than those=20
of nontransduced DCs. Moreover, splenocytes<SUP> </SUP>from animals =
treated with=20
DC-IL-23 showed heightened levels<SUP> </SUP>of specific CTL activity. =
<I>In=20
vivo</I> lymphocyte depletion experiments<SUP> </SUP>showed that the =
antitumor=20
immunity induced by DC-IL-23 was mainly<SUP> </SUP>dependent on =
CD8<SUP>+</SUP>=20
T cells and that CD4<SUP>+</SUP> T cells and natural<SUP> </SUP>killer =
cells=20
were also involved. In summary, i.t. injection<SUP> </SUP>of DC-IL-23 =
resulted=20
in significant and effective systemic antitumor<SUP> </SUP>immunity in=20
intracranial tumor=96bearing mice. These findings<SUP> </SUP>suggest a =
new=20
approach to induce potent tumor-specific immunity<SUP> </SUP>to =
intracranial=20
tumors. This approach may have therapeutic potential<SUP> </SUP>for =
treating=20
human glioma. (Cancer Res 2006; 66(17): 8887-96)<SUP> </SUP>
<P><A name=3DSEC1><!-- null --></A><BR clear=3Dright>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" bgColor=3D#e1e1e1>
  <TBODY>
  <TR>
    <TD vAlign=3Dcenter align=3Dleft width=3D"5%" bgColor=3D#ffffff><IMG =
height=3D21=20
      alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/rarrow.gif" =
width=3D10></TD>
    <TH vAlign=3Dcenter align=3Dleft width=3D"95%"><FONT =
size=3D+2>&nbsp;&nbsp;=20
      Introduction </FONT></TH></TR></TBODY></TABLE>
<TABLE cellPadding=3D5 align=3Dright border=3D1>
  <TBODY>
  <TR>
    <TH align=3Dleft><FONT size=3D-1><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#top=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Top<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#ABS=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Abstract<BR></A><IMG height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/dot.gif" =
width=3D11=20
      border=3D0><FONT color=3D#464c53>Introduction</FONT><BR><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
2"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      border=3D0>Materials and Methods<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
3"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      border=3D0>Results<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
4"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      border=3D0>Discussion<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#BIB=
L"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      =
border=3D0>References<BR></A></FONT></TH></TR></TBODY></TABLE>&nbsp;<BR>D=
endritic=20
cells (DCs) are specialized antigen-presenting cells<SUP> </SUP>that =
exist=20
virtually in every tissue and can both elicit primary<SUP> </SUP>and =
boost=20
secondary immune responses (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B1"=
>1</A>=96<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B4"=
>4</A>).=20
Since the<SUP> </SUP>identification of their role in immunogenicity (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B1"=
>1</A>),=20
tremendous<SUP> </SUP>attention has been focused on the critical role of =
DCs in=20
antitumor<SUP> </SUP>immune responses. DCs pulsed with synthetic tumor =
peptides=20
induce<SUP> </SUP>an effective antitumor immune response <I>in vitro</I> =
and=20
after adoptive<SUP> </SUP>transfer in mice (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B3"=
>3</A>,=20
<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B5"=
>5</A>,=20
<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B6"=
>6</A>).=20
Murine DCs can efficiently present<SUP> </SUP>antigens associated with =
whole=20
tumor cell lysates to na=EFve<SUP> </SUP>and primed T cells <I>in =
vitro</I> and=20
can elicit antitumor immunity<SUP> </SUP>resulting in tumor regression =
<I>in=20
vivo</I> (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B7"=
>7</A>,=20
<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B8"=
>8</A>).=20
Furthermore, DCs<SUP> </SUP>loaded with acid-eluted tumor peptide (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B9"=
>9</A>)=20
or RNA (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B10=
">10</A>,=20
<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B11=
">11</A>)=20
are<SUP> </SUP>also effective in inducing immunity against tumors. =
However,<SUP>=20
</SUP>these approaches require identifying tumor-specific peptides<SUP> =
</SUP>or=20
harvesting sufficient tissue from solid human tumors as well<SUP> =
</SUP>as the=20
cumbersome process of <I>ex vivo</I> DC pulsing.<SUP> </SUP>
<P>An alternative approach to eliciting tumor antigen presentation<SUP> =
</SUP>is=20
i.t. delivery of DC to allow tumor antigen capture <I>in situ</I><SUP> =
</SUP>at=20
the tumor site. Intratumoral administration of DCs into s.c.<SUP> =
</SUP>growing=20
murine MT-901 breast tumor showed efficient uptake of<SUP> =
</SUP>apoptotic tumor=20
cells by DC. Local injection of DC alone can<SUP> </SUP>result in =
regression of=20
the tumor <I>in vivo</I> (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B12=
">12</A>).=20
Intratumoral<SUP> </SUP>DC vaccination in intracranial tumor=96bearing =
rats=20
resulted<SUP> </SUP>in prolonged survival and immunity to subsequent =
tumor=20
rechallenge<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B13=
">13</A>).=20
Intratumoral injection with <I>IL-12</I> gene=96modified<SUP> </SUP>DC=20
significantly suppressed the growth of established intradermal<SUP> =
</SUP>tumor=20
and induced a strong antitumor T-cell response (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B14=
">14</A>).=20
After<SUP> </SUP>delivery of <I>p53</I> gene=96transduced DC into =
established=20
skin<SUP> </SUP>tumors, a systemic antitumor effect was induced and =
tumor=20
growth<SUP> </SUP>was significantly inhibited. More importantly, the =
i.t.=20
injection<SUP> </SUP>of p53-expressing DCs has a greater effect than =
s.c.=20
immunization<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B15=
">15</A>).=20
Furthermore, increased numbers of DC in solid tumor masses<SUP> =
</SUP>led to=20
induction of potent antitumor immunity in animal models<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B16=
">16</A>)=20
and better prognosis in some clinical studies (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B17=
">17</A>).<SUP>=20
</SUP>
<P>Interleukin (IL)-23 is a newly discovered cytokine, which =
consists<SUP>=20
</SUP>of a heterodimer of IL-12 P40 subunit and a novel protein, =
P19.<SUP>=20
</SUP>It has been shown that IL-23 acts on memory T cells and DCs<SUP>=20
</SUP>directly to promote IL-12 and IFN-<IMG alt=3D{gamma}=20
src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" border=3D0> =
production=20
<I>in vitro</I> (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B18=
">18</A>,<SUP>=20
</SUP><A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B19=
">19</A>).=20
Of further importance, IL-23 can act directly on CD8<IMG alt=3D{alpha}=20
src=3D"http://cancerres.aacrjournals.org/math/alpha.gif" =
border=3D0><SUP>+</SUP>=20
DC<SUP> </SUP>to promote immunogenic presentation of an otherwise=20
tolerogenic<SUP> </SUP>tumor peptide (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B19=
">19</A>).=20
Recently, it has been shown that IL-23=96expressing<SUP> </SUP>tumor =
cells exhibit=20
antitumor and antimetastatic functions in<SUP> </SUP>s.c. colon =
carcinoma model=20
(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B20=
">20</A>).=20
We recently showed that IL-23=96expressing<SUP> </SUP>bone =
marrow=96derived neural=20
stem cells display antitumor<SUP> </SUP>function in an intracranial =
glioma model=20
(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B21=
">21</A>).<SUP>=20
</SUP>
<P>Based on the essential role of i.t. administration of DCs in<SUP>=20
</SUP>initiating antitumor immune responses and on the promoting =
role<SUP>=20
</SUP>of IL-23 in the DC presentation of tumor antigen, we =
hypothesized<SUP>=20
</SUP>that i.t. delivery of <I>IL-23</I> gene=96transduced DC may =
offer<SUP>=20
</SUP>an efficient means for triggering immune responses <I>in situ</I>=20
within<SUP> </SUP>tumors, particularly in intracranial tumors. =
Therefore, in=20
the<SUP> </SUP>present study, we adenovirally transduced bone=20
marrow=96derived<SUP> </SUP>DCs with IL-23 and studied the antitumor =
effect of=20
i.t. administration<SUP> </SUP>of IL-23=96expressing DC in an =
intracranial tumor=20
model.<SUP> </SUP>We found that i.t. injection with IL-23=96transduced =
DC<SUP>=20
</SUP>(DC-IL-23) resulted in significantly prolonged survival in=20
intracranial<SUP> </SUP>tumor=96bearing mice and induced a strong=20
tumor-specific<SUP> </SUP>T-cell immune response. The antitumor effect =
induced=20
by IL-23=96expressing<SUP> </SUP>DCs was comparable with or even better =
than that=20
induced by<SUP> </SUP>IL-12-expressing DCs. Furthermore, =
IL-23=96expressing=20
DC=96treated<SUP> </SUP>survivors were resistant to subsequent =
intracranial=20
rechallenge<SUP> </SUP>with the same tumor.<SUP> </SUP>
<P><A name=3DSEC2><!-- null --></A><BR clear=3Dright>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" bgColor=3D#e1e1e1>
  <TBODY>
  <TR>
    <TD vAlign=3Dcenter align=3Dleft width=3D"5%" bgColor=3D#ffffff><IMG =
height=3D21=20
      alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/rarrow.gif" =
width=3D10></TD>
    <TH vAlign=3Dcenter align=3Dleft width=3D"95%"><FONT =
size=3D+2>&nbsp;&nbsp;=20
      Materials and Methods </FONT></TH></TR></TBODY></TABLE>
<TABLE cellPadding=3D5 align=3Dright border=3D1>
  <TBODY>
  <TR>
    <TH align=3Dleft><FONT size=3D-1><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#top=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Top<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#ABS=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Abstract<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
1"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Introduction<BR></A><IMG height=3D9 alt=3D" " =
hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/dot.gif" =
width=3D11=20
      border=3D0><FONT color=3D#464c53>Materials and =
Methods</FONT><BR><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
3"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      border=3D0>Results<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
4"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      border=3D0>Discussion<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#BIB=
L"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      =
border=3D0>References<BR></A></FONT></TH></TR></TBODY></TABLE>&nbsp;<BR><=
B>Cell=20
lines and animals.</B> GL26 (murine glioma) and B16-F10 (murine<SUP>=20
</SUP>melanoma) were maintained in RPMI 1640 supplemented with 10%<SUP>=20
</SUP>heat-inactivated fetal bovine serum (FBS), 2 mmol/L <FONT=20
size=3D-2>L</FONT>-glutamine,<SUP> </SUP>5 <FONT =
face=3Darial,helvetica>x</FONT>=20
10<SUP>=965</SUP> mol/L =DF-mercaptoethanol, and antibiotics<SUP> =
</SUP>(all from=20
Invitrogen, Gaithersgurg, MD), referred to henceforth<SUP> </SUP>as CM.=20
GL26-DsRed was a derivative of GL26 and was obtained<SUP> </SUP>by =
stable=20
transfection of red-fluorescent protein into GL26<SUP> </SUP>cells. Six- =
to=20
eight-week-old female C57BL/6 mice were purchased<SUP> </SUP>from The =
Jackson=20
Laboratory (Bar Harbor, ME) and housed at the<SUP> </SUP>animal =
maintenance=20
facility of Cedars-Sinai Medical Center.<SUP> </SUP>The animals were =
used for=20
experiments at 8 to 10 weeks of age.<SUP> </SUP>All of the animals used =
were=20
treated in strict accordance with<SUP> </SUP>the Institutional Animal =
Care and=20
Use Committee of Cedars-Sinai<SUP> </SUP>Medical Center guidelines.<SUP> =
</SUP>
<P><B>Generation of bone marrow=96derived DCs and transduction<SUP> =
</SUP>with=20
adenoviral vectors.</B> Erythrocyte-depleted mouse bone marrow<SUP> =
</SUP>cells=20
from flushed marrow cavities of femurs and tibias were<SUP> =
</SUP>cultured=20
overnight in CM to remove the adherent macrophages.<SUP> =
</SUP>Nonadherent cells=20
were then placed in fresh CM containing 10<SUP> </SUP>ng/mL granulocyte=20
macrophage colony-stimulating factor and 10<SUP> </SUP>ng/mL IL-4 on day =
1. On=20
day 5, DCs were harvested by gentle<SUP> </SUP>pipetting and were =
resuspended at=20
5 <FONT face=3Darial,helvetica>x</FONT> 10<SUP>6</SUP>/mL in CM. Three=20
milliliters<SUP> </SUP>of the DC suspension were overlaid onto 3 mL of =
CM-14.5%=20
(w/v)<SUP> </SUP>metrizamide (Sigma, St. Louis, MO) solution in a 15-mL=20
centrifuge<SUP> </SUP>tube. The resulting gradient was centrifuged at =
2,000 rpm,=20
brake<SUP> </SUP>off, 4=B0C, for 15 minutes. The low-density interface=20
containing<SUP> </SUP>the DCs was collected by pipette aspiration. The =
DCs were=20
rinsed<SUP> </SUP>twice with HBSS, enumerated, and resuspended in PBS =
for=20
adenoviral<SUP> </SUP>vector transduction.<SUP> </SUP>
<P>Adenoviral vectors bearing genes for single-chain mouse IL-23<SUP>=20
</SUP>(AdIL-23), IL-12 (AdIL-12), LacZ (AdLacZ), or a 2.4-kb =
noncoding<SUP>=20
</SUP>stuffer DNA (AdEmpty) were constructed as previously =
described<SUP>=20
</SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B21=
">21</A>)=20
and used to transduce DCs with a centrifugal method (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B22=
">22</A>).<SUP>=20
</SUP>Briefly, 1 <FONT face=3Darial,helvetica>x</FONT> 10<SUP>6</SUP> =
DCs were=20
suspended in 500 =B5L of PBS containing<SUP> </SUP>1% FBS and then mixed =
with=20
adenoviral vector that was suspended<SUP> </SUP>in 500 =B5L of PBS =
containing 1%=20
FBS. A multiplicity of<SUP> </SUP>infection (MOI) of 50 was used for all =
the=20
transductions except<SUP> </SUP>for the study to generate similar =
protein=20
expression level of<SUP> </SUP>either IL-23 or IL-12, which had a MOI of =
50 for=20
AdIL-12 transduction<SUP> </SUP>and a MOI of 20 for AdIL-23 =
transduction. The=20
mixtures of DCs<SUP> </SUP>and viral vectors were centrifuged (2,000 =
<FONT=20
face=3Darial,helvetica>x</FONT> <I>g</I> at 37=B0C) for<SUP> </SUP>2 =
hours. After=20
the centrifugal transduction process, the DCs<SUP> </SUP>were washed =
twice in=20
PBS and used for subsequent experiments.<SUP> </SUP>
<P><B>Animal studies <I>in vivo</I>.</B> C57BL/6 mice (female, 8-10 =
weeks=20
old)<SUP> </SUP>were anesthetized with i.p. ketamine and medetomidine, =
and=20
stereotactically<SUP> </SUP>implanted with 1 <FONT =
face=3Darial,helvetica>x</FONT>=20
10<SUP>4</SUP> GL26 or GL26-DsRed glioma cells in 2.5<SUP> </SUP>=B5L of =
1.2%=20
methylcellulose/PBS in the right striatum as<SUP> </SUP>previously =
described (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B21=
">21</A>).=20
Three days after tumor implantation,<SUP> </SUP>the mice received three=20
injections (2.5 =B5L, 1 <FONT face=3Darial,helvetica>x</FONT> =
10<SUP>5</SUP>=20
cells)<SUP> </SUP>of either adenovirus-transduced DCs, nontransduced =
DCs, or=20
saline<SUP> </SUP>every 7 days with the same coordinates as the tumor=20
implantation.<SUP> </SUP>For brain tissue analysis, the mice were =
euthanized on=20
day 7<SUP> </SUP>after the first i.t. DC injection by intracordic=20
perfusion-fixation<SUP> </SUP>with 4% paraformaldehyde. Animal brains =
were cut=20
into 40-=B5m<SUP> </SUP>coral sections and processed for =
immunohistochemistry=20
staining.<SUP> </SUP>In the tumor rechallenge experiment, surviving =
animals=20
were<SUP> </SUP>inoculated with the same tumor cells on the =
contralateral=20
side<SUP> </SUP>of the brain from the first tumor implantation.<SUP> =
</SUP>
<P>In the lymphocyte depletion experiments, mice were injected<SUP> =
</SUP>i.p.=20
with 0.5 mg of rat anti-mouse CD8 (53-6.7) and anti-CD4<SUP> =
</SUP>(GK1.5; both=20
from American Type Culture Collection, Rockville,<SUP> </SUP>MD) =
monoclonal=20
antibodies or with normal rat immunoglobulin<SUP> </SUP>G (IgG) as =
control=20
antibody in 200 =B5L of PBS 1 day before<SUP> </SUP>tumor implantation, =
once daily=20
for the following 3 consecutive<SUP> </SUP>days, and then twice a week. =
Natural=20
killer (NK) cells were<SUP> </SUP>depleted by i.p. injection of 200 =B5g =
of=20
anti-NK1.1 monoclonal<SUP> </SUP>antibody (clone PK136, BD PharMingen, =
San=20
Diego, CA) or IgG2a<SUP> </SUP>as control using the same schedule as =
above.=20
Lymphocyte depletion<SUP> </SUP>was confirmed in each depletion =
experiment by=20
FACScan (Becton<SUP> </SUP>Dickinson, San Jose, CA) analysis of =
peripheral=20
blood.<SUP> </SUP>
<P><B>Flow cytometry.</B> For phenotype analysis of DCs, =
phycoerythrin-<SUP>=20
</SUP>or FITC-conjugated monoclonal antibodies against murine =
cell-surface<SUP>=20
</SUP>molecules (MHC-I, MHC-II, CD11c, CD54, CD80, CD86, and =
appropriate<SUP>=20
</SUP>isotype control; all from BD PharMingen) were used and =
cytometric<SUP>=20
</SUP>analysis was done with a FACScan. For the CD8<SUP>+</SUP> and=20
CD4<SUP>+</SUP> T-cell<SUP> </SUP>infiltration experiment, brain tissues =
of six=20
mice were pooled<SUP> </SUP>and homogenized, followed by Percoll =
(Amersham=20
Biosciences,<SUP> </SUP>Piscataway, NJ) gradient centrifugation to =
isolate=20
mononuclear<SUP> </SUP>cells. The isolated mononuclear cells were =
stained by=20
FITC-CD4<SUP> </SUP>(clone GK1.5) and phycoerythrin-CD8 (clone 53-6.7)=20
antibodies<SUP> </SUP>(BD PharMingen) and then subjected to FACScan=20
analysis.<SUP> </SUP>
<P><B><I>In vitro</I> cytokine release assays.</B> Lymphoid cells were=20
obtained<SUP> </SUP>from the draining lymph node and spleen harvested =
from=20
each<SUP> </SUP>of two mice that had received the second i.t. injection =
of=20
transduced<SUP> </SUP>DCs, nontransduced DCs, or saline 7 days earlier. =
The=20
spleen<SUP> </SUP>or lymph node was pressed through sterile gauze, =
rinsed,=20
treated<SUP> </SUP>for erythrocyte depletion, and rinsed again. These =
cells=20
(2<SUP> </SUP><FONT face=3Darial,helvetica>x</FONT> 10<SUP>6</SUP>) were =

cocultured with 4 <FONT face=3Darial,helvetica>x</FONT> 10<SUP>5</SUP> =
mitomycin=20
C=96treated<SUP> </SUP>GL26 or B16-F10 tumor cells in 24-well culture =
plates for=20
36<SUP> </SUP>hours. Culture supernatants were collected for =
measurements<SUP>=20
</SUP>of murine IFN-<IMG alt=3D{gamma}=20
src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" border=3D0> and =
IL-4=20
release by standard ELISA (BD PharMingen).<SUP> </SUP>The lower limit of =

sensitivity for each assay was 31.3 and 15.6<SUP> </SUP>pg/mL, =
respectively. In=20
the IL-23 P40 subunit release assay,<SUP> </SUP>a sandwich ELISA =
specific for=20
murine P40 was used as previously<SUP> </SUP>described (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B19=
">19</A>).=20
In the IL-23 P19 and IL-12 P70 release assay,<SUP> </SUP>sandwich ELISA =
kits=20
(eBioscience, San Diego, CA) were used according<SUP> </SUP>to the =
instructions=20
of the manufacturer.<SUP> </SUP>
<P><B>Cytotoxicity assays.</B> Splenocytes were harvested as =
described<SUP>=20
</SUP>above and pooled from two mice per group 7 days after the =
second<SUP>=20
</SUP>i.t. injection of transduced DCs, nontransduced DCs, or =
saline.<SUP>=20
</SUP>These cells (5 <FONT face=3Darial,helvetica>x</FONT> =
10<SUP>6</SUP>) were=20
restimulated <I>in vitro</I> with 5 <FONT =
face=3Darial,helvetica>x</FONT>=20
10<SUP>5</SUP><SUP> </SUP>mitomycin C=96treated GL26 cells in the =
presence of 25=20
IU/mL<SUP> </SUP>recombinant human IL-2 for 5 days and used as effector=20
cells<SUP> </SUP>in a lactate dehydrogenase (LDH) release assay. GL26 or =

B16-F10<SUP> </SUP>cells (1 <FONT face=3Darial,helvetica>x</FONT> =
10<SUP>4</SUP>=20
per well) and serial dilutions of effector cells<SUP> </SUP>were =
incubated in a=20
96-well U-bottomeded plate at 37=B0C for<SUP> </SUP>5 hours. =
Supernatants then=20
were analyzed with a cytotoxicity<SUP> </SUP>detection kit (Roche =
Applied=20
Science, Indianapolis, IN) according<SUP> </SUP>to the instructions of =
the=20
manufacturer. Results were expressed<SUP> </SUP>as the percentage of =
specific=20
lysis. Statistical comparisons<SUP> </SUP>were done with paired =
Student's=20
<I>t</I> test.<SUP> </SUP>
<P><B>Reverse transcription-PCR.</B> Adenoviral vector=96transduced<SUP> =
</SUP>and=20
nontransduced DCs were harvested after 24 and 48 hours of<SUP>=20
</SUP>transduction. The cell pellets were subjected to total RNA =
extraction<SUP>=20
</SUP>with a RNeasy Mini kit (Qiagen, Valencia, CA). The isolated<SUP> =
</SUP>RNA=20
was reverse transcribed with a Bioscript kit (Bioline, Randolph,<SUP> =
</SUP>MA)=20
and Oligo(dT)<SUB>12-18</SUB> primer (Invitrogen). The PCR was =
carried<SUP>=20
</SUP>out in a 20-=B5L reaction mixture that contained 1 =B5L<SUP> =
</SUP>of cDNA as=20
template, specific oligonucleotide primer pairs of<SUP> </SUP>P19 =
subunit=20
(forward, cagcagctctctcggaatct; reverse, tagaactcaggctgggcatc)<SUP> =
</SUP>and=20
=DF-actin (forward, ggactcctatgtgggtgacg; reverse,<SUP>=20
</SUP>tacgaccagaggcatacagg), and Accuzyme (Bioline). The P19 was=20
concurrently<SUP> </SUP>amplified with internal control =DF-actin in the =
same<SUP>=20
</SUP>reaction tube as previously described (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B23=
">23</A>).=20
The amplified products<SUP> </SUP>were identified by agarose gel =
electrophoresis=20
and ethidium<SUP> </SUP>bromide staining.<SUP> </SUP>
<P><B>Trafficking study of i.t. injection of DCs.</B> Three days =
after<SUP>=20
</SUP>intracranial GL26 implantation, animals were randomly divided<SUP> =

</SUP>into four groups and i.t. injected with IL-23=96 or empty<SUP>=20
</SUP>vector=96transduced DCs, nontransdcued DCs, or saline. Both<SUP>=20
</SUP>transduced and nontransduced DCs were labeled with red =
fluorescent<SUP>=20
</SUP>cell linker (PKH26; Sigma) immediately before the i.t. =
injection.<SUP>=20
</SUP>Briefly, the transduced or nontransduced DCs were incubated<SUP>=20
</SUP>with PKH26 at a concentration of 2 <FONT =
face=3Darial,helvetica>x</FONT>=20
10<SUP>-6</SUP> mol/L at room temperature<SUP> </SUP>for 5 minutes, =
rinsed=20
extensively with HBSS, examined for viability<SUP> </SUP>and number by =
the=20
trypan blue exclusion method, and used for<SUP> </SUP>injection. The =
injected=20
mice were euthanized 24 hours after<SUP> </SUP>the injection by =
intracordic=20
perfusion-fixation with 4% paraformaldehyde.<SUP> </SUP>The ipsilateral =
deep=20
cervical lymph nodes (draining lymph nodes)<SUP> </SUP>were harvested =
and=20
postfixed at 4=B0C, embedded in optimum<SUP> </SUP>cutting temperature =
compound,=20
and frozen. Serial 8-=B5m<SUP> </SUP>sections were cut from these =
samples with a=20
cryostat and examined<SUP> </SUP>under a fluorescent microscope. To =
quantify the=20
fluorescence-positive<SUP> </SUP>cells, images were analyzed at a final=20
magnification of <FONT face=3Darial,helvetica>x</FONT>20.<SUP> =
</SUP>Four adjacent=20
sections were analyzed for each animal with the<SUP> </SUP>Zeiss =
AxioVision=20
software (Carl Zeiss MicroImaging, Inc., Thornwood,<SUP> </SUP>NY). The =
numbers=20
of fluorescence-positive cells counted in a<SUP> </SUP>field of <FONT=20
face=3Darial,helvetica>x</FONT>20 magnification were reported as mean =
=B1 SD<SUP>=20
</SUP>of the experiment group.<SUP> </SUP>
<P><B>Immunohistochemistry stainings of brain sections.</B> =
Free-floating<SUP>=20
</SUP>40-=B5m sections were treated with 10% donkey serum (Sigma)<SUP> =
</SUP>for=20
30 minutes at room temperature and then stained with anti-CD4<SUP> =
</SUP>(rat=20
monoclonal antibody 1:50; BD PharMingen) and anti-CD8 (rat<SUP> =
</SUP>monoclonal=20
antibody 1:100; BD PharMingen) primary antibodies<SUP> </SUP>and isotype =
control=20
antibodies. The primary antibodies were<SUP> </SUP>detected with =
FITC-conjugated=20
donkey anti-rat IgG (1:200; Jackson<SUP> </SUP>ImmunoResearch =
Laboratories, West=20
Grove, PA). The sections were<SUP> </SUP>then counterstained with=20
4',6-diamidino-2-phenylindole before<SUP> </SUP>mounting. The results =
were=20
evaluated under a confocal microscope.<SUP> </SUP>The positively stained =
cells=20
were quantified by analyzing the<SUP> </SUP>images at a final =
magnification of=20
<FONT face=3Darial,helvetica>x</FONT>20. Four adjacent sections<SUP>=20
</SUP>containing tumor mass were analyzed for each animal with the<SUP>=20
</SUP>AxioVision software (Carl Zeiss). The numbers of positively<SUP>=20
</SUP>stained cells counted in a field of 20<FONT =
face=3Darial,helvetica>x</FONT>=20
magnification were reported<SUP> </SUP>as mean =B1 SD of the experiment =
group.=20
Comparisons between<SUP> </SUP>experiment groups were made with paired =
Student's=20
<I>t</I> test.<SUP> </SUP>
<P><A name=3DSEC3><!-- null --></A><BR clear=3Dright>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" bgColor=3D#e1e1e1>
  <TBODY>
  <TR>
    <TD vAlign=3Dcenter align=3Dleft width=3D"5%" bgColor=3D#ffffff><IMG =
height=3D21=20
      alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/rarrow.gif" =
width=3D10></TD>
    <TH vAlign=3Dcenter align=3Dleft width=3D"95%"><FONT =
size=3D+2>&nbsp;&nbsp;=20
      Results </FONT></TH></TR></TBODY></TABLE>
<TABLE cellPadding=3D5 align=3Dright border=3D1>
  <TBODY>
  <TR>
    <TH align=3Dleft><FONT size=3D-1><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#top=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Top<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#ABS=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Abstract<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
1"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Introduction<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
2"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Materials and Methods<BR></A><IMG height=3D9 alt=3D" " =
hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/dot.gif" =
width=3D11=20
      border=3D0><FONT color=3D#464c53>Results</FONT><BR><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
4"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      border=3D0>Discussion<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#BIB=
L"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      =
border=3D0>References<BR></A></FONT></TH></TR></TBODY></TABLE>&nbsp;<BR><=
B>DCs can=20
be transduced by an adenoviral vector to express high<SUP> </SUP>levels =
of=20
biologically active IL-23.</B> Using a centrifugal method,<SUP> </SUP>we =

transduced murine bone marrow=96derived DCs, which were<SUP> =
</SUP>generated <I>in=20
vitro</I> with granulocyte macrophage colony-stimulating<SUP> =
</SUP>factor plus=20
IL-4, with an adenoviral vector carrying a single-chain<SUP> </SUP>mouse =

<I>IL-23</I> under the control of murine cytomegalovirus promoter,<SUP>=20
</SUP>AdIL-23 (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B21=
">21</A>).=20
Transduction with a LacZ-expressing adenoviral<SUP> </SUP>vector at MOI =
50 by a=20
centrifugal method, which can efficiently<SUP> </SUP>introduce transgene =
into DC=20
(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B22=
">22</A>),=20
revealed that murine DCs could<SUP> </SUP>be adenovirally transduced at =
<IMG=20
alt=3D~ src=3D"http://cancerres.aacrjournals.org/math/sim.gif" =
border=3D0>85%=20
efficiency (data not shown).<SUP> </SUP>This is consistent with a =
previous study=20
by Nishimura et al.<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B22=
">22</A>).=20
After the completion of DC transduction with AdIL-23,<SUP> </SUP>the=20
concentration of IL-23 P40 subunit released into the culture<SUP> =
</SUP>medium=20
was measured by ELISA and the mRNA transcription of IL-23<SUP> </SUP>P19 =
subunit=20
in the cell pellet was detected by reverse transcription-PCR<SUP>=20
</SUP>(RT-PCR). As shown in <A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
1">Fig.=20
1<I>A</I></A> , accumulation of P40 was observed<SUP> </SUP>in cultures =
of=20
AdIL-23=96transduced DCs (DC-IL-23), but<SUP> </SUP>not in cultures of=20
nontransduced or AdEmpty-transduced DCs (DC-Empty).<SUP> </SUP>RT-PCR =
showed=20
that P19 mRNA was only detected in the cell pellets<SUP> </SUP>that were =

transduced by AdIL-23, which confirmed that IL-23<SUP> </SUP>expression =
was only=20
achieved in the DC-IL-23 (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
1">Fig.=20
1<I>B</I></A>). The<SUP> </SUP>IL-23 produced by the DC-IL-23 was =
confirmed to=20
be biologically<SUP> </SUP>active and capable of stimulating IFN-<IMG=20
alt=3D{gamma} src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" =
border=3D0>=20
production from concanavalin<SUP> </SUP>A blast T cells as previously =
described=20
(data not shown; ref.<SUP> </SUP><A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B19=
">19</A>).=20
To examine the effect of adenoviral transduction and exogenous<SUP> =
</SUP>IL-23=20
expression on the DCs phenotype, various cell-surface<SUP> =
</SUP>molecules were=20
examined by flow cytometry. AdEmpty transduction<SUP> </SUP>had little =
effect on=20
the DC phenotype compared with nontransduced<SUP> </SUP>DCs. DC-IL-23 =
did not=20
differ from DC-Empty or nontransduced<SUP> </SUP>DCs, except for =
increased=20
levels of MHC-I and MHC-II molecules<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#TBL=
1">Table=20
1</A> ).<SUP> </SUP>
<P><A name=3DFIG1><!-- null --></A><BR clear=3Dall>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"95%">
  <TBODY>
  <TR bgColor=3D#e1e1e1>
    <TD>
      <TABLE cellSpacing=3D2 cellPadding=3D2>
        <TBODY>
        <TR bgColor=3D#e1e1e1>
          <TD vAlign=3Dtop align=3Dmiddle bgColor=3D#ffffff><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
1"><IMG=20
            height=3D200 alt=3D"Figure 1" hspace=3D10=20
            =
src=3D"http://cancerres.aacrjournals.org/content/vol66/issue17/images/sma=
ll/8887fig01g.gif"=20
            width=3D125 vspace=3D5 border=3D2></A><BR><STRONG>View =
larger=20
            version</STRONG> (36K):<BR><NOBR><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
1">[in=20
            this window]</A><BR><A=20
            onmouseover=3D"window.status=3D'View figure in a separate =
window'; return true"=20
            onclick=3D"startTarget('FIG1', 426, 640); =
this.href=3D'/cgi/content-nw/full/66/17/8887/FIG1'"=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content-nw/full/66/17/8887/=
FIG1"=20
            target=3DFIG1>[in a new window]</A><BR>&nbsp;</NOBR> </TD>
          <TD vAlign=3Dtop align=3Dleft><B>Figure 1.</B> Transgene =
expression by=20
            DCs after adenovirus transduction. <I>A,</I> the =
accumulation of=20
            IL-23 P40 subunit was detected in the culture supernatant of =

            DC-IL-23 with ELISA. <I>Columns,</I> mean of triplicate=20
            determinations; <I>bars,</I> SD. <I>B,</I> the mRNA =
transcription of=20
            IL-23 P19 subunit in cell pellets of DC-IL-23 was detected =
by RT-PCR=20
            [<I>lane 1,</I> ladder; <I>lane 2</I> and <I>5,</I> =
DC-IL-23;=20
            <I>lane 3</I> and <I>6,</I> DC-Empty; <I>lane 4</I> and =
<I>7,</I>=20
            nontransduced DCs (<I>DC</I>)].
            =
<P></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></CENTER>&nbsp=
;<BR><A=20
name=3DTBL1><!-- null --></A><BR clear=3Dall>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"95%">
  <TBODY>
  <TR bgColor=3D#e1e1e1>
    <TD>
      <TABLE cellSpacing=3D2 cellPadding=3D2>
        <TBODY>
        <TR bgColor=3D#e1e1e1>
          <TD vAlign=3Dtop align=3Dmiddle bgColor=3D#ffffff><STRONG>View =
this=20
            table:</STRONG><BR><NOBR><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/TBL=
1">[in=20
            this window]</A><BR><A=20
            onmouseover=3D"window.status=3D'View table in a separate =
window'; return true"=20
            onclick=3D"startTarget('TBL1', 500, 400); =
this.href=3D'/cgi/content-nw/full/66/17/8887/TBL1'"=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content-nw/full/66/17/8887/=
TBL1"=20
            target=3DTBL1>[in a new window]</A><BR>&nbsp;</NOBR> </TD>
          <TD vAlign=3Dtop align=3Dleft><B>Table 1.</B> Phenotypic =
characteristic=20
            of adenoviral vector=96transduced DCs
            =
<P></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></CENTER>&nbsp=
;<BR><B>Intratumoral=20
injections with DC-IL-23 result in prolonged survival<SUP> </SUP>in =
intracranial=20
tumor=96bearing mice.</B> To examine whether<SUP> </SUP>the DC-IL-23 =
provided a=20
therapeutic benefit for brain tumor,<SUP> </SUP>we established gliomas =
in=20
C57BL/6 mice with an intracranial<SUP> </SUP>implantation of 1 <FONT=20
face=3Darial,helvetica>x</FONT> 10<SUP>4</SUP> GL26 cells. Three days =
after the=20
tumor<SUP> </SUP>implantation, mice were randomly divided into four =
groups.=20
Each<SUP> </SUP>group was i.t. injected thrice with either saline,=20
DC-IL-23,<SUP> </SUP>DC-Empty, or nontransduced DCs, respectively, at =
7-day=20
interval<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
2">Fig.=20
2<I>A</I></A> ). As shown in <A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
2">Fig.=20
2<I>B</I></A>, i.t. administration of DC-IL-23<SUP> </SUP>resulted in=20
significantly prolonged survival compared with DC-Empty<SUP> </SUP>or=20
nontransduced DCs. Approximately 80% of the DC-IL-23=96treated<SUP> =
</SUP>mice=20
survived beyond an observed period of 120 days. DC-Empty<SUP> </SUP>and=20
nontransduced DC treatments led to only 20% of the mice<SUP> =
</SUP>surviving=20
beyond 120 days. All of the saline-treated mice died<SUP> </SUP>within =
45 days=20
after the GL26 implantation. Statistical analysis<SUP> </SUP>revealed =
that the=20
effect of DC-IL-23 was significantly different<SUP> </SUP>from that of =
DC-Empty=20
or nontransduced DCs (<I>P</I> =3D 0.0114, DC-IL-23<SUP> </SUP>versus =
DC-Empty;=20
<I>P</I> =3D 0.0164, DC-IL-23 versus nontransduced DC;<SUP> =
</SUP>log-rank test).=20
In addition, the effects of DC-Empty and nontransduced<SUP> </SUP>DCs =
were=20
significantly different from that of saline (<I>P</I> &lt;<SUP> =
</SUP>0.0001,=20
DC-Empty versus saline; <I>P</I> &lt; 0.0001, nontransduced<SUP> =
</SUP>DC versus=20
saline; log-rank test). However, there was no significant<SUP> =
</SUP>difference=20
between the DC-Empty and nontransduced DC treatments<SUP> =
</SUP>(<I>P</I> =3D=20
0.9103; log-rank test). Because IL-23 relates to IL-12<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B18=
">18</A>)=20
and it has been shown that <I>IL-12</I> gene=96transduced<SUP> </SUP>DC=20
significantly suppressed the growth of established intradermal<SUP> =
</SUP>tumor=20
(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B14=
">14</A>),=20
we sought to compare the antitumor effect of IL-23=96expressing<SUP> =
</SUP>DCs=20
with that of IL-12-expressing DCs in the intracranial tumor<SUP> =
</SUP>model.=20
DCs expressing similar transgene protein levels of either<SUP> =
</SUP>IL-23 or=20
IL-12 by adenoviral vector transduction were i.t. injected<SUP> =
</SUP>into=20
intracranial tumor=96bearing mice with the same schedule<SUP> </SUP>as =
described=20
in <A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
2">Fig.=20
2<I>A</I></A>. The DC-IL-23 treatment resulted in<SUP> </SUP>a similar =
pattern=20
of survival benefit on the tumor-bearing mice<SUP> </SUP>as that of the =
DC-IL-12=20
treatment (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
2">Fig.=20
2<I>C</I></A>), but this survival<SUP> </SUP>benefit was less than that =
in <A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
2">Fig.=20
2<I>B</I></A> because a lower MOI for<SUP> </SUP>AdIL-23 transduction =
was used=20
in the experiment in <A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
2">Fig.=20
2<I>C</I></A>.<SUP> </SUP>Statistical analysis revealed that the =
DC-IL-23=20
treatment was<SUP> </SUP>not significantly different from the DC-IL-12 =
treatment=20
(<I>P</I> =3D<SUP> </SUP>0.1566, DC-IL-23 versus DC-IL-12; log-rank =
test),=20
although DC-IL-23<SUP> </SUP>treatment resulted in <IMG alt=3D~=20
src=3D"http://cancerres.aacrjournals.org/math/sim.gif" border=3D0>60% =
survival rate=20
versus <IMG alt=3D~ =
src=3D"http://cancerres.aacrjournals.org/math/sim.gif"=20
border=3D0>50% for DC-IL-12.<SUP> </SUP>We also compared the antitumor =
effect of=20
DC transduced by either<SUP> </SUP>AdIL-23 or AdIL-12 with the same MOI =
of 50.=20
The same MOI transduction<SUP> </SUP>resulted in a higher transgene =
protein=20
level in DC-IL-23 than<SUP> </SUP>in AdIL-12-transduced DCs (DC-IL-12; =
ref. <A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B21=
">21</A>)<A=20
name=3DRFN1></A><SUP><A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FN1=
">4</A></SUP>=20
and, consequently,<SUP> </SUP>DC-IL-23 showed significantly better =
antitumor=20
effect than DC-IL-12<SUP> </SUP>(<I>P</I> =3D 0.0409, DC-IL-23 versus =
DC-IL-12;=20
log-rank test; <A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
2">Fig.=20
2<I>D</I></A>).<SUP> </SUP>
<P><A name=3DFIG2><!-- null --></A><BR clear=3Dall>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"95%">
  <TBODY>
  <TR bgColor=3D#e1e1e1>
    <TD>
      <TABLE cellSpacing=3D2 cellPadding=3D2>
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          <TD vAlign=3Dtop align=3Dmiddle bgColor=3D#ffffff><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
2"><IMG=20
            height=3D200 alt=3D"Figure 2" hspace=3D10=20
            =
src=3D"http://cancerres.aacrjournals.org/content/vol66/issue17/images/sma=
ll/8887fig02g.gif"=20
            width=3D104 vspace=3D5 border=3D2></A><BR><STRONG>View =
larger=20
            version</STRONG> (23K):<BR><NOBR><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
2">[in=20
            this window]</A><BR><A=20
            onmouseover=3D"window.status=3D'View figure in a separate =
window'; return true"=20
            onclick=3D"startTarget('FIG2', 378, 640); =
this.href=3D'/cgi/content-nw/full/66/17/8887/FIG2'"=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content-nw/full/66/17/8887/=
FIG2"=20
            target=3DFIG2>[in a new window]</A><BR>&nbsp;</NOBR> </TD>
          <TD vAlign=3Dtop align=3Dleft><B>Figure 2.</B> <I>In vivo</I>=20
            experiments with intracranial tumor model. <I>A,</I> =
experiment=20
            schema shows tumor implantation, DC injection, rechallenge, =
and=20
            survival observation time. <I>B,</I> effect of DC-IL-23 on =
the=20
            experimental glioma in C57BL/6 mice. Kaplan-Meier survival =
curve of=20
            intracranial glioma=96bearing C57BL/6 mice that were =
injected i.t.=20
            thrice with DC-IL-23, DC-Empty, nontransduced DCs, or =
saline.=20
            <I>C</I> and <I>D,</I> comparison of the effects of DC-IL-23 =
and=20
            DC-IL-12 on experimental glioma in C57BL/6 mice. =
Kaplan-Meier=20
            survival curve of intracranial glioma=96bearing C57BL/6 mice =
that were=20
            injected i.t. thrice with adenoviral vector=96transduced DCs =
that had=20
            similar transgene expression levels of either IL-23 or IL-12 =

            (<I>C</I>). Kaplan-Meier survival curve of intracranial=20
            glioma=96bearing C57BL/6 mice that were injected i.t. thrice =
with DCs=20
            that were transduced with a MOI of 50 by either AdIL-23 or =
AdIL-12=20
            (<I>D</I>). Representative of two independent experiments.
            =
<P></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></CENTER>&nbsp=
;<BR>On=20
the basis of the known ability of IL-23 to induce proliferation<SUP> =
</SUP>of=20
memory T cells, we sought to assess whether the i.t. injection<SUP> =
</SUP>of=20
IL-23=96expressing DC could induce enhanced T-cell infiltration<SUP> =
</SUP>in=20
tumor-bearing brains. Seven days after the first i.t. injection<SUP> =
</SUP>of=20
transduced DCs, brain tissues were subjected to homogenization,<SUP>=20
</SUP>gradient centrifugation to isolate mononuclear cells, and =
then<SUP>=20
</SUP>immunostaining for flow cytometry. The FACScan analysis =
revealed<SUP>=20
</SUP>that intracranial CD8<SUP>+</SUP> and CD4<SUP>+</SUP> T-cell =
infiltration=20
was enhanced<SUP> </SUP>in DC-IL-23=96treated tumor-bearing brains =
compared=20
with<SUP> </SUP>those of DC-Empty=96, nontransduced DC=96, and =
saline-treated<SUP>=20
</SUP>tissues (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
3">Fig.=20
3</A> ). Stained <I>in situ</I> by immunohistochemistry,<SUP> =
</SUP>brain tumors=20
from the mice treated with DC-IL-23 showed robust<SUP> =
</SUP>infiltration of=20
CD8<SUP>+</SUP> and CD4<SUP>+</SUP> T cells [<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
4">Fig.=20
4<I>A</I> and <I>B</I></A> (<I>a-h</I>)].<SUP> </SUP>There was =
negligible=20
CD8<SUP>+</SUP> and CD4<SUP>+</SUP> T-cell infiltration, however,<SUP>=20
</SUP>within tumors from mice treated with saline [<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
4">Fig.=20
4<I>A</I> and <I>B</I></A> (<I>q-t</I>)].<SUP> </SUP>The treatment with =
DC-Empty=20
and nontransduced DC also resulted<SUP> </SUP>in i.t. T-cell =
infiltration, but=20
the intensity of that infiltration<SUP> </SUP>was significantly lower =
than that=20
seen in the DC-IL-23=96treated<SUP> </SUP>tumors [<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
4">Fig.=20
4<I>A</I> and <I>B</I></A> (<I>i-p</I>)]. Semiquantification revealed =
that<SUP>=20
</SUP>there were <IMG alt=3D~ =
src=3D"http://cancerres.aacrjournals.org/math/sim.gif"=20
border=3D0>104 =B1 12.75 CD8 positively stained cells identified<SUP> =
</SUP>in=20
DC-IL-23=96treated group as compared with 35 =B1<SUP> </SUP>8.21 and 31 =
=B1 4.96 in=20
the DC-Empty=96 and nontransduced<SUP> </SUP>DC=96treated groups, =
respectively. CD4=20
positively stained<SUP> </SUP>cells were <IMG alt=3D~=20
src=3D"http://cancerres.aacrjournals.org/math/sim.gif" border=3D0>82.25 =
=B1 8.48 in=20
DC-IL-23=96treated group<SUP> </SUP>as compared with 29.75 =B1 13.45 and =
28.25 =B1=20
6.85<SUP> </SUP>in the DC-Empty=96 and nontransduced DC=96treated =
groups,<SUP>=20
</SUP>respectively. Both CD8<SUP>+</SUP> and CD4<SUP>+</SUP> T-cell =
infiltration=20
reached<SUP> </SUP>significant difference (<I>P</I> &lt; 0.05) for the=20
DC-IL-23=96treated<SUP> </SUP>group when compared with either =
DC-Empty=96 or=20
nontransduced<SUP> </SUP>DC=96treated group.<SUP> </SUP>
<P><A name=3DFIG3><!-- null --></A><BR clear=3Dall>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"95%">
  <TBODY>
  <TR bgColor=3D#e1e1e1>
    <TD>
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        <TR bgColor=3D#e1e1e1>
          <TD vAlign=3Dtop align=3Dmiddle bgColor=3D#ffffff><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
3"><IMG=20
            height=3D156 alt=3D"Figure 3" hspace=3D10=20
            =
src=3D"http://cancerres.aacrjournals.org/content/vol66/issue17/images/sma=
ll/8887fig03l.gif"=20
            width=3D200 vspace=3D5 border=3D2></A><BR><STRONG>View =
larger=20
            version</STRONG> (23K):<BR><NOBR><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
3">[in=20
            this window]</A><BR><A=20
            onmouseover=3D"window.status=3D'View figure in a separate =
window'; return true"=20
            onclick=3D"startTarget('FIG3', 590, 543); =
this.href=3D'/cgi/content-nw/full/66/17/8887/FIG3'"=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content-nw/full/66/17/8887/=
FIG3"=20
            target=3DFIG3>[in a new window]</A><BR>&nbsp;</NOBR> </TD>
          <TD vAlign=3Dtop align=3Dleft><B>Figure 3.</B> T-cell =
infiltration=20
            within the tumor-bearing brains of transduced DC=96 and =
nontransduced=20
            DC=96injected mice. Fluorescence-activated cell sorting =
analysis=20
            showed the CD8<SUP>+</SUP> and CD4<SUP>+</SUP> T-cell =
infiltration=20
            in the tumor-bearing brain tissues of mice that were i.t. =
injected=20
            with DC-IL-23 (<I>A</I>), DC-Empty (<I>B</I>), nontransduced =
DCs=20
            (<I>C</I>), and saline (<I>D</I>). DC-IL-23=96treated mice =
showed=20
            robust infiltration of CD8<SUP>+</SUP> and CD4<SUP>+</SUP> T =
cells=20
            compared with that of DC-Empty=96 and nontransduced =
DC=96treated mice.
            =
<P></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></CENTER>&nbsp=
;<BR><A=20
name=3DFIG4><!-- null --></A><BR clear=3Dall>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"95%">
  <TBODY>
  <TR bgColor=3D#e1e1e1>
    <TD>
      <TABLE cellSpacing=3D2 cellPadding=3D2>
        <TBODY>
        <TR bgColor=3D#e1e1e1>
          <TD vAlign=3Dtop align=3Dmiddle bgColor=3D#ffffff><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
4"><IMG=20
            height=3D200 alt=3D"Figure 4" hspace=3D10=20
            =
src=3D"http://cancerres.aacrjournals.org/content/vol66/issue17/images/sma=
ll/8887fig04ac.gif"=20
            width=3D161 vspace=3D5 border=3D2></A><BR><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
4"><IMG=20
            height=3D200 alt=3D"Figure 4" hspace=3D10=20
            =
src=3D"http://cancerres.aacrjournals.org/content/vol66/issue17/images/sma=
ll/8887fig04bc.gif"=20
            width=3D160 vspace=3D5 border=3D2></A><BR><STRONG>View =
larger=20
            version</STRONG> (127K):<BR><NOBR><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
4">[in=20
            this window]</A><BR><A=20
            onmouseover=3D"window.status=3D'View figure in a separate =
window'; return true"=20
            onclick=3D"startTarget('FIG4', 504, 1080); =
this.href=3D'/cgi/content-nw/full/66/17/8887/FIG4'"=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content-nw/full/66/17/8887/=
FIG4"=20
            target=3DFIG4>[in a new window]</A><BR>&nbsp;</NOBR> </TD>
          <TD vAlign=3Dtop align=3Dleft><B>Figure 4.</B> Intratumoral =
T-cell=20
            infiltration after the administration of transduced and=20
            nontransduced DCs. <I>A,</I> intracranial tumor=96bearing =
mice showed=20
            robust infiltration of CD8<SUP>+</SUP> T cells within the =
tumor=20
            masses 7 days after the first i.t. injection of DC-IL-23=20
            (<I>A-H</I>). Moderate infiltration of CD8<SUP>+</SUP> T =
cells=20
            within the tumor masses was also observed in =
DC-Empty=96treated=20
            (<I>I-L</I>) and nontransduced DC=96treated (<I>M-P</I>) =
mice.=20
            Saline-treated mice showed negligible CD8<SUP>+</SUP> T-cell =

            infiltration in the tumor masses (<I>Q-T</I>). Bar, 250 =
=B5m.=20
            <I>B,</I> intracranial tumor=96bearing mice showed robust =
infiltration=20
            of CD4<SUP>+</SUP> T cells within the tumor masses 7 days =
after the=20
            first i.t. injection of DC-IL-23 (<I>A-H</I>). Moderate =
infiltration=20
            of CD4<SUP>+</SUP> T cells within the tumor masses was also =
observed=20
            in DC-Empty=96treated (<I>I-L</I>) and nontransduced =
DC=96treated=20
            (<I>M-P</I>) mice. Saline-treated mice showed negligible=20
            CD4<SUP>+</SUP> T-cell infiltration in the tumor masses=20
            (<I>Q-T</I>). Bar, 250 =B5m.
            =
<P></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></CENTER>&nbsp=
;<BR><B>Tumor-specific=20
immune response can be identified after intratumoral<SUP> =
</SUP>implantation of=20
DC-IL-23 into the brains of tumor-bearing mice.</B><SUP> </SUP>Because =
the above=20
data showed that i.t. injection of DC-IL-23<SUP> </SUP>resulted in =
prolonged=20
survival and intratumoral T-cell infiltration<SUP> </SUP>in the brain=20
tumor=96bearing mice, we next asked whether<SUP> </SUP>systemic immune =
responses=20
specific for the tumor were induced<SUP> </SUP>by i.t. injection of =
DC-IL-23. To=20
address this question, deep<SUP> </SUP>cervical lymph nodes in the =
ipsilateral=20
side of the implanted<SUP> </SUP>glioma (draining lymph nodes) as well =
as the=20
spleen were harvested<SUP> </SUP>from the tumor-bearing mice 7 days =
after the=20
second i.t. injection<SUP> </SUP>of DC-IL-23. These lymphoid cells were=20
cocultured with mitomycin<SUP> </SUP>C=96treated GL26 cells <I>in =
vitro</I> and=20
IFN-<IMG alt=3D{gamma} =
src=3D"http://cancerres.aacrjournals.org/math/gamma.gif"=20
border=3D0> and IL-4 production<SUP> </SUP>in the culture supernatant =
was=20
examined. As shown in <A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#TBL=
2">Table=20
2</A> ,<SUP> </SUP>injection with DC-Empty or nontransduced DCs enhanced =

tumor-specific<SUP> </SUP>IFN-<IMG alt=3D{gamma}=20
src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" border=3D0> =
production by=20
lymphoid cells harvested from draining lymph<SUP> </SUP>nodes and spleen =

compared with saline injection. More importantly,<SUP> </SUP>i.t. =
injection of=20
DC-IL-23 resulted in greater enhancement of<SUP> </SUP>IFN-<IMG =
alt=3D{gamma}=20
src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" border=3D0> =
production in=20
response to GL26 restimulation by these lymphoid<SUP> </SUP>cells. In =
contrast,=20
there was no detectable IL-4 increase in<SUP> </SUP>spleen and only a =
slight=20
increase in draining lymph nodes. The<SUP> </SUP>IFN-<IMG alt=3D{gamma}=20
src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" border=3D0> was =

specifically released with GL26 stimulation, but not<SUP> </SUP>with =
syngeneic=20
B16-F10 tumor cells (data not shown). These results<SUP> </SUP>suggest =
that i.t.=20
injected DC-IL-23 can traffic to the draining<SUP> </SUP>lymph node and=20
efficiently stimulate lymphocytes <I>in situ</I> to<SUP> </SUP>produce =
IFN-<IMG=20
alt=3D{gamma} src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" =
border=3D0>. To=20
verify this notion, DC-IL-23, DC-Empty, and<SUP> </SUP>nontransduced DCs =
were=20
labeled with fluorescent linker (PKH26)<SUP> </SUP>and injected i.t. =
into brain=20
tumor=96bearing mice, and the<SUP> </SUP>ipsilateral deep cervical lymph =
node (the=20
draining lymph node)<SUP> </SUP>was examined 24 hours after the =
injection.=20
Numerous fluorescence-positive<SUP> </SUP>cells were identified in lymph =
nodes=20
from animals injected with<SUP> </SUP>PKH26-labeled adenoviral =
vector=96transduced=20
or nontransdcued<SUP> </SUP>DCs (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
5">Fig.=20
5</A> ). Quantification of the fluorescence-positive<SUP> </SUP>cells =
revealed=20
an average of 25 =B1 2 cells per field in<SUP> </SUP>all the mice =
injected with=20
either adenoviral vector=96transduced<SUP> </SUP>or nontransdcued DCs. =
Spleen=20
cells from the DC-IL-23=96treated<SUP> </SUP>mice were also analyzed for =
CTL=20
activity against tumor targets.<SUP> </SUP><A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
6">Figure=20
6</A> showed the CTL activity against GL26 cells by spleen<SUP> =
</SUP>cells from=20
mice that received saline compared with those that<SUP> </SUP>received=20
adenoviral vector=96transduced and nontransduced<SUP> </SUP>DCs. Mice =
that=20
received either transduced or nontransduced DCs<SUP> </SUP>showed =
enhanced CTL=20
activity compared with saline-injected mice.<SUP> </SUP>DC-IL-23 =
injection=20
induced significantly higher CTL activity<SUP> </SUP>than did DC-Empty =
or=20
nontransduced DC injection (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
6">Fig.=20
6<I>A</I></A>). Statistical<SUP> </SUP>analysis revealed that there were =

significant differences in<SUP> </SUP>cytolytic activity between =
DC-IL-23/GL26=20
and DC-Empty/GL26,<SUP> </SUP>DC/GL26, or saline/GL26 at all three=20
effector-to-target ratios<SUP> </SUP>(<I>P</I> &lt; 0.05). Significant=20
differences in cytolytic activity<SUP> </SUP>were found between =
saline/GL26 and=20
DC-Empty/GL26 or DC/GL26<SUP> </SUP>only at effector-to-target ratios of =
30 and=20
100. Splenocytes<SUP> </SUP>from DC-IL-23=96treated mice lacked any =
apparent CTL=20
activity<SUP> </SUP>against the irrelevant tumor cell B16-F10 (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
6">Fig.=20
6<I>B</I></A>), indicating<SUP> </SUP>that the CTL activity was tumor=20
specific.<SUP> </SUP>
<P><A name=3DTBL2><!-- null --></A><BR clear=3Dall>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"95%">
  <TBODY>
  <TR bgColor=3D#e1e1e1>
    <TD>
      <TABLE cellSpacing=3D2 cellPadding=3D2>
        <TBODY>
        <TR bgColor=3D#e1e1e1>
          <TD vAlign=3Dtop align=3Dmiddle bgColor=3D#ffffff><STRONG>View =
this=20
            table:</STRONG><BR><NOBR><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/TBL=
2">[in=20
            this window]</A><BR><A=20
            onmouseover=3D"window.status=3D'View table in a separate =
window'; return true"=20
            onclick=3D"startTarget('TBL2', 500, 400); =
this.href=3D'/cgi/content-nw/full/66/17/8887/TBL2'"=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content-nw/full/66/17/8887/=
TBL2"=20
            target=3DTBL2>[in a new window]</A><BR>&nbsp;</NOBR> </TD>
          <TD vAlign=3Dtop align=3Dleft><B>Table 2.</B> IFN-<IMG =
alt=3D{gamma}=20
            src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" =
border=3D0> and=20
            IL-4 production by lymphoid cells from draining lymph nodes =
and=20
            spleen
            =
<P></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></CENTER>&nbsp=
;<BR><A=20
name=3DFIG5><!-- null --></A><BR clear=3Dall>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"95%">
  <TBODY>
  <TR bgColor=3D#e1e1e1>
    <TD>
      <TABLE cellSpacing=3D2 cellPadding=3D2>
        <TBODY>
        <TR bgColor=3D#e1e1e1>
          <TD vAlign=3Dtop align=3Dmiddle bgColor=3D#ffffff><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
5"><IMG=20
            height=3D200 alt=3D"Figure 5" hspace=3D10=20
            =
src=3D"http://cancerres.aacrjournals.org/content/vol66/issue17/images/sma=
ll/8887fig05c.gif"=20
            width=3D200 vspace=3D5 border=3D2></A><BR><STRONG>View =
larger=20
            version</STRONG> (8K):<BR><NOBR><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
5">[in=20
            this window]</A><BR><A=20
            onmouseover=3D"window.status=3D'View figure in a separate =
window'; return true"=20
            onclick=3D"startTarget('FIG5', 590, 640); =
this.href=3D'/cgi/content-nw/full/66/17/8887/FIG5'"=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content-nw/full/66/17/8887/=
FIG5"=20
            target=3DFIG5>[in a new window]</A><BR>&nbsp;</NOBR> </TD>
          <TD vAlign=3Dtop align=3Dleft><B>Figure 5.</B> Intratumoral =
injection of=20
            transduced and nontransduced DCs migrated to the draining =
lymph=20
            node. Intracranial tumor=96bearing mice were injected i.t. =
with=20
            transduced or nontransduced DCs that were labeled with =
PKH26. The=20
            draining lymph nodes were harvested 24 hours after the =
injection and=20
            were processed for fluorescent microscope examination.=20
            Fluorescence-positive cells were observed in the draining =
lymph=20
            nodes harvested from mice injected with DC-IL-23 (<I>A</I>), =

            DC-Empty (<I>B</I>), and nontransduced DCs (<I>C</I>). No=20
            fluorescence-positive cell was observed in the draining =
lymph nodes=20
            harvested from mice injected with saline (<I>D</I>). Bar, =
250 =B5m.
            =
<P></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></CENTER>&nbsp=
;<BR><A=20
name=3DFIG6><!-- null --></A><BR clear=3Dall>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"95%">
  <TBODY>
  <TR bgColor=3D#e1e1e1>
    <TD>
      <TABLE cellSpacing=3D2 cellPadding=3D2>
        <TBODY>
        <TR bgColor=3D#e1e1e1>
          <TD vAlign=3Dtop align=3Dmiddle bgColor=3D#ffffff><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
6"><IMG=20
            height=3D200 alt=3D"Figure 6" hspace=3D10=20
            =
src=3D"http://cancerres.aacrjournals.org/content/vol66/issue17/images/sma=
ll/8887fig06g.gif"=20
            width=3D135 vspace=3D5 border=3D2></A><BR><STRONG>View =
larger=20
            version</STRONG> (23K):<BR><NOBR><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
6">[in=20
            this window]</A><BR><A=20
            onmouseover=3D"window.status=3D'View figure in a separate =
window'; return true"=20
            onclick=3D"startTarget('FIG6', 446, 640); =
this.href=3D'/cgi/content-nw/full/66/17/8887/FIG6'"=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content-nw/full/66/17/8887/=
FIG6"=20
            target=3DFIG6>[in a new window]</A><BR>&nbsp;</NOBR> </TD>
          <TD vAlign=3Dtop align=3Dleft><B>Figure 6.</B> Tumor-specific =
CTL=20
            activity of spleen cells induced by i.t. injection of =
DC-IL-23.=20
            <I>A,</I> spleen cells obtained from the tumor-bearing mice =
7 days=20
            after second i.t. injection of transduced DCs, nontransduced =
DCs, or=20
            saline were restimulated with mitomycin C=96treated GL26 =
cells for 5=20
            days, and the CTL activity of the resultant effector cells =
was=20
            measured against parental GL26 tumor target in a LDH release =
assay.=20
            Representative of three independent experiments. **, =
<I>P</I> &lt;=20
            0.05, compared with either DC-Empty/GL26 or DC/GL26; *, =
<I>P</I>=20
            &lt; 0.05, compared with saline/GL26. <I>B,</I> spleen cells =
were=20
            obtained and restimulated as described in (<I>A</I>) and the =
CTL=20
            activity of the resultant effector cells was measured =
against GL26=20
            and B16-F10 tumor targets in a LDH release assay. **, =
<I>P</I> &lt;=20
            0.05, compared with B16-F10. Representative of three =
independent=20
            experiments.
            =
<P></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></CENTER>&nbsp=
;<BR>We=20
also examined whether a memory protective immunity was established<SUP> =
</SUP>by=20
the i.t. injection of DC-IL-23. DC-IL-23=96treated survivors<SUP> =
</SUP>were=20
subjected to rechallenge with another intracranial implantation<SUP> =
</SUP>of=20
GL26 (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
1">Fig.=20
1<I>A</I></A>). All of the rechallenged animals survived<SUP> =
</SUP>beyond day=20
90 post rechallenge and were tumor-free at the end<SUP> </SUP>point of =
the=20
survival study as verified by H&amp;E staining<SUP> </SUP>of brain =
sections. In=20
contrast, age-matched na=EFve mice<SUP> </SUP>were uniformly susceptible =
to GL26=20
glioma challenge and died<SUP> </SUP>of brain tumor within 45 days of =
the=20
challenge.<SUP> </SUP>
<P><B>Involvement of CD8<SUP>+</SUP>, CD4<SUP>+</SUP> T cells and NK =
cells in=20
the antitumor<SUP> </SUP>effect of i.t. injection with DC-IL-23.</B> To =
identify=20
the population<SUP> </SUP>of T cells and NK cells involved in the =
antitumor=20
immunity induced<SUP> </SUP>by DC-IL-23, mice were injected with =
depleting=20
anti-CD8, anti-CD4,<SUP> </SUP>or control rat antibodies for circulating =
T-cell=20
depletion or<SUP> </SUP>with anti-NK1.1 or control mouse antibodies for =
NK cell=20
depletion.<SUP> </SUP>Flow cytometry showed that the injection of =
antibodies=20
depleted<SUP> </SUP>the appropriate cell population by 95% (data not =
sown). As=20
shown<SUP> </SUP>in <A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
7">Fig.=20
7<I>A</I></A> , depletion of CD8<SUP>+</SUP> T cells greatly impaired =
the<SUP>=20
</SUP>protective effect of DC-IL-23 on intracranial tumor=96bearing<SUP> =

</SUP>mice (<I>P</I> =3D 0.0013, CD8 depletion versus control rat IgG;=20
log-rank<SUP> </SUP>test). There was no long-term survival observed in =
the CD8=20
T-cell=96depleted<SUP> </SUP>mice. Similarly, but less significantly, =
the=20
impairment of the<SUP> </SUP>protective effect was also observed in the =
CD4=20
T-cell=96depleted<SUP> </SUP>mice (<I>P</I> =3D 0.0475, CD4 depletion =
versus control=20
rat IgG; log-rank<SUP> </SUP>test). In NK cell=96depleted mice, DC-IL-23 =
treatment=20
still<SUP> </SUP>had a protective effect on intracranial =
tumor=96bearing<SUP>=20
</SUP>mice (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#FIG=
7">Fig.=20
7<I>B</I></A>). However, the effect was impaired in these mice<SUP>=20
</SUP>compared with the mice that received control mouse IgG (<I>P</I> =
=3D<SUP>=20
</SUP>0.0439, NK cell depletion versus control mouse IgG; log-rank<SUP>=20
</SUP>test). These data indicate that CD8<SUP>+</SUP> T cells are =
essential=20
for<SUP> </SUP>the antitumor effect conferred by i.t. injection of=20
DC-IL-23,<SUP> </SUP>and that CD4<SUP>+</SUP> T cells and NK cells also =
have=20
roles in the effect.<SUP> </SUP>
<P><A name=3DFIG7><!-- null --></A><BR clear=3Dall>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"95%">
  <TBODY>
  <TR bgColor=3D#e1e1e1>
    <TD>
      <TABLE cellSpacing=3D2 cellPadding=3D2>
        <TBODY>
        <TR bgColor=3D#e1e1e1>
          <TD vAlign=3Dtop align=3Dmiddle bgColor=3D#ffffff><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
7"><IMG=20
            height=3D200 alt=3D"Figure 7" hspace=3D10=20
            =
src=3D"http://cancerres.aacrjournals.org/content/vol66/issue17/images/sma=
ll/8887fig07g.gif"=20
            width=3D139 vspace=3D5 border=3D2></A><BR><STRONG>View =
larger=20
            version</STRONG> (24K):<BR><NOBR><A=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887/FIG=
7">[in=20
            this window]</A><BR><A=20
            onmouseover=3D"window.status=3D'View figure in a separate =
window'; return true"=20
            onclick=3D"startTarget('FIG7', 456, 640); =
this.href=3D'/cgi/content-nw/full/66/17/8887/FIG7'"=20
            =
href=3D"http://cancerres.aacrjournals.org/cgi/content-nw/full/66/17/8887/=
FIG7"=20
            target=3DFIG7>[in a new window]</A><BR>&nbsp;</NOBR> </TD>
          <TD vAlign=3Dtop align=3Dleft><B>Figure 7.</B> Involvement of=20
            CD8<SUP>+</SUP>, CD4<SUP>+</SUP> T cells and NK cells in the =

            antitumor immunity induced by DC-IL-23. <I>A,</I> =
Kaplan-Meier=20
            survival curve of intracranial tumor=96bearing mice that =
received=20
            anti-CD8, anti-CD4 depleting antibodies or control IgG and =
were=20
            treated with i.t. injection of DC-IL-23. <I>B,</I> =
Kaplan-Meier=20
            survival curve of intracranial tumor=96bearing mice that =
received=20
            either anti-NK1.1 antibody for NK cell depletion or control =
IgG and=20
            were treated with i.t. injection of DC-IL-23. Representative =
of=20
            three independent experiments.
            =
<P></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></CENTER>&nbsp=
;<BR><A=20
name=3DSEC4><!-- null --></A><BR clear=3Dright>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" bgColor=3D#e1e1e1>
  <TBODY>
  <TR>
    <TD vAlign=3Dcenter align=3Dleft width=3D"5%" bgColor=3D#ffffff><IMG =
height=3D21=20
      alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/rarrow.gif" =
width=3D10></TD>
    <TH vAlign=3Dcenter align=3Dleft width=3D"95%"><FONT =
size=3D+2>&nbsp;&nbsp;=20
      Discussion </FONT></TH></TR></TBODY></TABLE>
<TABLE cellPadding=3D5 align=3Dright border=3D1>
  <TBODY>
  <TR>
    <TH align=3Dleft><FONT size=3D-1><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#top=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Top<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#ABS=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Abstract<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
1"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Introduction<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
2"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Materials and Methods<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
3"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Results<BR></A><IMG height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/dot.gif" =
width=3D11=20
      border=3D0><FONT color=3D#464c53>Discussion</FONT><BR><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#BIB=
L"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/darrow.gif" =
width=3D11=20
      =
border=3D0>References<BR></A></FONT></TH></TR></TBODY></TABLE>&nbsp;<BR>I=
t has=20
been reported that the presence of increased DC numbers<SUP> =
</SUP>within solid=20
tumor masses induces effective antitumor immune<SUP> </SUP>responses in =
animal=20
models (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B16=
">16</A>)=20
and is associated with improved<SUP> </SUP>prognosis in clinical =
patients (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B17=
">17</A>).=20
In the current study, we<SUP> </SUP>showed that i.t. administration of =
DC-IL-23=20
can induce significant<SUP> </SUP>and effective systemic antitumor =
immune=20
responses that control<SUP> </SUP>the growth of experimental =
intracranial=20
gliomas in immunocompetent<SUP> </SUP>mice, suggesting that a =
gene-modified DC=20
<I>in situ</I> vaccine may<SUP> </SUP>have a broad therapeutic potential =
for the=20
management of human<SUP> </SUP>brain tumors.<SUP> </SUP>
<P>Viral vector=96mediated genetic modification of DCs to express<SUP>=20
</SUP>immunomodulatory proteins or tumor antigens has been =
successfully<SUP>=20
</SUP>achieved in animal models of tumor treatment (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B15=
">15</A>,=20
<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B24=
">24</A>,=20
<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B25=
">25</A>).=20
Among<SUP> </SUP>vectors used for transducing DC, adenoviral vector=20
represents<SUP> </SUP>an efficient means of inserting transgenes into DC =
without=20
detrimental<SUP> </SUP>effects on its phenotype or function (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B22=
">22</A>,=20
<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B26=
">26</A>,=20
<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B27=
">27</A>).=20
In this study,<SUP> </SUP>we transduced DCs with adenoviral vector =
coding=20
single-chain<SUP> </SUP>mouse IL-23 using a centrifugal method. A =
previous study=20
showed<SUP> </SUP>that adenoviral infection could induce maturation of =
DC=20
via<SUP> </SUP>a nuclear factor <IMG alt=3D{kappa}=20
src=3D"http://cancerres.aacrjournals.org/math/kappa.gif" =
border=3D0>B=96dependent=20
pathway (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B28=
">28</A>).=20
We found, however,<SUP> </SUP>that the adenoviral vector itself had no=20
detrimental effect<SUP> </SUP>on the DC phenotype in our experimental =
settings,=20
which was<SUP> </SUP>consistent with a study showing that infection with =

adenovirus<SUP> </SUP>encoding an enhanced green fluorescent protein had =
little=20
effect<SUP> </SUP>on expression of the surface markers of DCs, as well =
as=20
with<SUP> </SUP>findings from Murakami et al.'s (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B15=
">15</A>)=20
report that DC transduced<SUP> </SUP>by an adenoviral vector coding p53 =
protein=20
or control Dl312<SUP> </SUP>vector showed no apparent effect on DC=20
differentiation and activation<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B22=
">22</A>).=20
These differences may be due, at least partly, to the<SUP> </SUP>methods =
used=20
for transducing DCs. A centrifugal method, which<SUP> </SUP>enhances =
adenovirus=20
transduction efficiency with a short infection<SUP> </SUP>time (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B22=
">22</A>),=20
was used in our study. We also observed that IL-23<SUP> =
</SUP>adenovirally=20
transduced into DC increased the expression of<SUP> </SUP>both MHC class =
I and=20
class II surface molecules. These phenotypic<SUP> </SUP>changes could be =
due, in=20
part, to the direct effect of IL-23<SUP> </SUP>or, more likely, =
indirectly=20
through IFN-<IMG alt=3D{gamma}=20
src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" border=3D0> =
production by=20
contaminating<SUP> </SUP>T cells or NK cells. In fact, DCs generated =
from bone=20
marrow<SUP> </SUP>of IFN-<IMG alt=3D{gamma}=20
src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" border=3D0> =
knockout mice=20
did not show any change in the expression<SUP> </SUP>level of MHC class =
I and=20
class II molecules after adenoviral<SUP> </SUP>vector transduction (data =
not=20
shown).<SUP> </SUP>
<P>Treating intracranial glioma=96bearing mice with i.t. injection<SUP> =
</SUP>of=20
DC-IL-23 resulted in profound antitumor effects with massive<SUP> =
</SUP>T-cell=20
infiltrations. These data confirm published studies of<SUP> </SUP>others =
(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B20=
">20</A>)=20
as well as our own (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B21=
">21</A>)=20
that found that IL-23 expressed<SUP> </SUP>by tumor cells or by neural =
stem=20
cells showed antitumor effects<SUP> </SUP>in <I>in vivo</I> colon =
carcinoma=20
models (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B20=
">20</A>)=20
and brain tumor models<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B21=
">21</A>),=20
respectively. Lymphocytes from spleen and draining lymph<SUP> =
</SUP>nodes of=20
mice treated i.t. with DC-IL-23 displayed heightened<SUP> </SUP>levels =
of=20
IFN-<IMG alt=3D{gamma} =
src=3D"http://cancerres.aacrjournals.org/math/gamma.gif"=20
border=3D0> secretion as well as CTL activity in a tumor-specific<SUP>=20
</SUP>fashion. Indeed, these responses could contribute to the =
profound<SUP>=20
</SUP><I>in vivo</I> antitumor effects that we observed. Moreover, i.t.=20
injection<SUP> </SUP>of DC-IL-23 resulted in robust infiltration of=20
CD8<SUP>+</SUP> and CD4<SUP>+</SUP><SUP> </SUP>T cells within the =
tumor-bearing=20
brain. These findings are of<SUP> </SUP>particular interest because both =

cytolytic and noncytolytic<SUP> </SUP>tumor-specific, tumor-infiltrating =

lymphocytes have been shown<SUP> </SUP>to mediate potent antitumor =
effects <I>in=20
vivo</I> upon adoptive transfer<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B29=
">29</A>,=20
<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B30=
">30</A>).<SUP>=20
</SUP>
<P>Evidence has shown that immature DCs can readily acquire =
antigen(s)<SUP>=20
</SUP>via uptake of apoptotic cells, which in turn elicit MHC class<SUP> =

</SUP>I=96restricted CTLs (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B31=
">31</A>,=20
<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B32=
">32</A>).=20
Thus, using flow cytometry,<SUP> </SUP>we confirmed in each experiment =
in the=20
current study that the<SUP> </SUP>prepared DCs have an immature =
phenotype. DCs=20
delivered locally<SUP> </SUP>at the tumor site may phagocytose adjacent =
tumor=20
cells and present<SUP> </SUP>tumor antigens <I>in vivo</I>, which could =
be=20
greatly facilitated by<SUP> </SUP>the expression of IL-23 that is able =
to act=20
directly on CD8<IMG alt=3D{alpha}=20
src=3D"http://cancerres.aacrjournals.org/math/alpha.gif"=20
border=3D0><SUP>+</SUP><SUP> </SUP>DC to promote immunogenic =
presentation of tumor=20
antigen. The<SUP> </SUP>combination of the tumor antigen presentation =
ability of=20
DC<SUP> </SUP>and the promoting effect of IL-23 on antigen presentation=20
<I>in<SUP> </SUP>situ</I> within tumor masses may underline the superior =

antitumor<SUP> </SUP>effect of IL-23=96expressing DCs. =
IL-23=96expressing<SUP>=20
</SUP>DCs showed antitumor activity superior to IL-12-expressing =
DCs<SUP>=20
</SUP>when the same MOIs of AdIL-23 and AdIL-12 transduced DCs were<SUP> =

</SUP>injected i.t. When both IL-23=96expressing DCs and =
IL-12=96expressing<SUP>=20
</SUP>DCs had similar transgene protein levels, IL-23=96expressing<SUP> =
</SUP>DCs=20
showed a higher survival rate on tumor-bearing animal. These<SUP> =
</SUP>findings=20
indicate that, under the current experimental settings,<SUP> </SUP>DC =
with=20
AdIL-23 transduction can lead to greater transgene expression<SUP> =
</SUP>and an=20
enhanced antitumor response against intracranial glioma.<SUP> </SUP>
<P>Our <I>in vivo</I> lymphocyte depletion experiments showed that=20
CD8<SUP>+</SUP><SUP> </SUP>T cells and, to a lesser extent, =
CD4<SUP>+</SUP> T=20
cells and NK cells are<SUP> </SUP>required for the generation of the =
antitumor=20
immunity conferred<SUP> </SUP>by IL-23=96expressing DCs. These data are =
consistent=20
with<SUP> </SUP>our previous findings, which showed that the antiglioma=20
activity<SUP> </SUP>of IL-23=96expressing neural stem cells was mainly=20
dependent<SUP> </SUP>on CD8<SUP>+</SUP> T cells, and CD4<SUP>+</SUP> T =
cells and=20
NK cells were also involved<SUP> </SUP>in the process (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B21=
">21</A>).=20
However, the data are in contrast to Lo<SUP> </SUP>et al.'s study (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B20=
">20</A>).=20
The latter study showed that the antitumor<SUP> </SUP>effect of =
IL-23=96expressing=20
tumor cells was independent<SUP> </SUP>of CD4<SUP>+</SUP> T cells and NK =
cells.=20
These differences are probably<SUP> </SUP>the result of the different =
tumor=20
models used in the two studies.<SUP> </SUP>GL26 glioma was used as an=20
intracranial brain tumor model in<SUP> </SUP>the current study whereas =
Lo et al.=20
used a s.c. colon adenocarcinoma<SUP> </SUP>model. The unique =
environment of the=20
central nervous system<SUP> </SUP>with regard to antigen presentation =
and the=20
differences of immunogenicity<SUP> </SUP>among different tumor cell =
lines may=20
underline the variability<SUP> </SUP>in the cellular subsets crucial to =
an=20
antitumor effect.<SUP> </SUP>
<P>It has been reported that IL-23 can activate macrophages to<SUP>=20
</SUP>produce proinflammatory cytokines, such as IL-17, which may<SUP>=20
</SUP>contribute to autoimmune inflammation of the brain (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B33=
">33</A>=96<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B36=
">36</A>).<SUP>=20
</SUP>In our experimental model, however, we showed that IL-17 =
could<SUP>=20
</SUP>not be detected by mRNA transcription or by protein =
expression<SUP>=20
</SUP>in the brain of DC-IL-23=96treated mice (data not shown).<SUP> =
</SUP>We=20
recently reported that IFN-<IMG alt=3D{gamma}=20
src=3D"http://cancerres.aacrjournals.org/math/gamma.gif" border=3D0> =
mRNA can be=20
greatly elevated<SUP> </SUP>in tumor-rechallenged mice that survived =
previous=20
brain tumor<SUP> </SUP>implantation by IL-23=96expressing neural stem =
cell=20
treatment.<SUP> </SUP>These rechallenged mice showed no demyelination or =

inflammation<SUP> </SUP>changes, as verified by histologic analysis of =
brain=20
tissue<SUP> </SUP>(<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B21=
">21</A>).=20
Indeed, in our current study, none of the mice treated<SUP> </SUP>with =
DC-IL-23=20
showed signs of autoimmune distress (ruffled fur,<SUP> </SUP>weight =
loss,=20
lethargy, or agitation) or histopathologic changes<SUP> </SUP>in the =
brain (data=20
not shown). Thus, although the molecular<SUP> </SUP>mechanisms governing =
the=20
pathways that regulate TH1-type antitumor<SUP> </SUP>immunity and =
autoimmune=20
response by exogenous IL-23 are presently<SUP> </SUP>unclear, i.t. =
injection of=20
IL-23=96expressing DCs results<SUP> </SUP>in systemic and effective =
antitumor=20
activity in intracranial<SUP> </SUP>tumor=96bearing mice with no =
detectable=20
deleterious side<SUP> </SUP>effects.<SUP> </SUP>
<P>Taken together, in the current study, we present evidence that<SUP>=20
</SUP>i.t. injection with <I>IL-23</I> gene=96transduced DC is =
feasible,<SUP>=20
</SUP>mediates an effective antitumor immunity that is superior to<SUP>=20
</SUP>that observed with DC-Empty or nontransduced DC, or even with<SUP> =

</SUP>DC-IL-12, and is capable of inducing substantial systemic =
antitumor<SUP>=20
</SUP>immune responses. These data provide a preclinical rationale<SUP>=20
</SUP>for IL-23=96expressing DC=96based brain tumor therapy.<SUP> </SUP>
<P>Note: When the present study was finished, Overwijk et al. (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B37=
">37</A>)<SUP>=20
</SUP>reported that IL-23 is a potent vaccine adjuvant for the =
induction<SUP>=20
</SUP>of therapeutic, tumor-specific CD8 T-cell response and =
Bettelli<SUP>=20
</SUP>et al. (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B38=
">38</A>)=20
reported that IL-23 is not the differentiation factor<SUP> </SUP>for the =

generation of IL-17-producing T cells, whereas Langowski<SUP> </SUP>et =
al. (<A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#B39=
">39</A>)=20
reported that IL-23 is an important molecular link<SUP> </SUP>between=20
tumor-promoting proinflammatory processes and the failure<SUP> </SUP>of =
the=20
adaptive immune surveillance to infiltrate tumors.<SUP> </SUP>
<P><A name=3DACK><!-- null --></A><BR clear=3Dright>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" bgColor=3D#e1e1e1>
  <TBODY>
  <TR>
    <TD vAlign=3Dcenter align=3Dleft width=3D"5%" bgColor=3D#ffffff><IMG =
height=3D21=20
      alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/rarrow.gif" =
width=3D10></TD>
    <TH vAlign=3Dcenter align=3Dleft width=3D"95%"><FONT =
size=3D+2>&nbsp;&nbsp;=20
      Acknowledgments =
</FONT></TH></TR></TBODY></TABLE>&nbsp;<BR><B>Grant support:</B>=20
NIH grants 1K23 NS02232, 1R01 NS048959, and 1R21<SUP> </SUP>NS048879 =
(J.S. Yu),=20
and NMRC grants 1435-04-04-GT-41387 and<SUP> </SUP>-43096 (D.L. =
Farkas).<SUP>=20
</SUP>
<P>The costs of publication of this article were defrayed in part<SUP> =
</SUP>by=20
the payment of page charges. This article must therefore<SUP> </SUP>be =
hereby=20
marked <I>advertisement</I> in accordance with 18 U.S.C.<SUP> =
</SUP>Section 1734=20
solely to indicate this fact.<SUP> </SUP>
<P>We thank Dr. Scot Macdonald for the critical review of the =
manuscript<SUP>=20
</SUP>and helpful comments, and Dr. Chris Wheeler for the =
discussions.<SUP>=20
</SUP>
<P><A name=3DFN><!-- null --></A><BR clear=3Dright>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" bgColor=3D#e1e1e1>
  <TBODY>
  <TR>
    <TD vAlign=3Dcenter align=3Dleft width=3D"5%" bgColor=3D#ffffff><IMG =
height=3D21=20
      alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/rarrow.gif" =
width=3D10></TD>
    <TH vAlign=3Dcenter align=3Dleft width=3D"95%"><FONT =
size=3D+2>&nbsp;&nbsp;=20
      Footnotes </FONT></TH></TR></TBODY></TABLE>&nbsp;<BR><A=20
name=3D""><!-- null --></A><B>Note:</B> J. Hu and X. Yuan contributed =
equally to=20
this work.<SUP> </SUP>
<P><A name=3DFN1><!-- null --></A><SUP>4</SUP> Unpublished data.<SUP> =
</SUP><A=20
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#RFN=
1"><IMG=20
height=3D12 alt=3DBack =
src=3D"http://cancerres.aacrjournals.org/icons/back.gif"=20
width=3D12 border=3D0></A>
<P>Received 10/ 4/05. Revised 6/ 7/06. Accepted 7/11/06.
<P><A name=3DBIBL><!-- null --></A><BR clear=3Dright>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" bgColor=3D#e1e1e1>
  <TBODY>
  <TR>
    <TD vAlign=3Dcenter align=3Dleft width=3D"5%" bgColor=3D#ffffff><IMG =
height=3D21=20
      alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/rarrow.gif" =
width=3D10></TD>
    <TH vAlign=3Dcenter align=3Dleft width=3D"95%"><FONT =
size=3D+2>&nbsp;&nbsp;=20
      References </FONT></TH></TR></TBODY></TABLE>
<TABLE cellPadding=3D5 align=3Dright border=3D1>
  <TBODY>
  <TR>
    <TH align=3Dleft><FONT size=3D-1><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#top=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Top<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#ABS=
"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Abstract<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
1"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Introduction<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
2"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Materials and Methods<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
3"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Results<BR></A><A=20
      =
href=3D"http://cancerres.aacrjournals.org/cgi/content/full/66/17/8887#SEC=
4"><IMG=20
      height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/uarrow.gif" =
width=3D11=20
      border=3D0>Discussion<BR></A><IMG height=3D9 alt=3D" " hspace=3D5=20
      src=3D"http://cancerres.aacrjournals.org/icons/toc/dot.gif" =
width=3D11=20
      border=3D0><FONT=20
color=3D#464c53>References</FONT><BR></FONT></TH></TR></TBODY></TABLE>&nb=
sp;<BR>
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Content-Location: http://cancerres.aacrjournals.org/javascript/ajax/xmlhttprequest.js

/*=0A=
=0A=
Cross-Browser XMLHttpRequest v1.2=0A=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=0A=
=0A=
Emulate Gecko 'XMLHttpRequest()' functionality in IE and Opera. Opera =
requires=0A=
the Sun Java Runtime Environment <http://www.java.com/>.=0A=
=0A=
by Andrew Gregory=0A=
http://www.scss.com.au/family/andrew/webdesign/xmlhttprequest/=0A=
=0A=
This work is licensed under the Creative Commons Attribution License. To =
view a=0A=
copy of this license, visit =
http://creativecommons.org/licenses/by-sa/2.5/ or=0A=
send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, =
California=0A=
94305, USA.=0A=
=0A=
Attribution: Leave my name and web address in this script intact.=0A=
=0A=
Not Supported in Opera=0A=
----------------------=0A=
* user/password authentication=0A=
* responseXML data member=0A=
=0A=
Not Fully Supported in Opera=0A=
----------------------------=0A=
* async requests=0A=
* abort()=0A=
* getAllResponseHeaders(), getAllResponseHeader(header)=0A=
=0A=
*/=0A=
// IE support=0A=
if (window.ActiveXObject && !window.XMLHttpRequest) {=0A=
  window.XMLHttpRequest =3D function() {=0A=
    var msxmls =3D new Array(=0A=
      'Msxml2.XMLHTTP.5.0',=0A=
      'Msxml2.XMLHTTP.4.0',=0A=
      'Msxml2.XMLHTTP.3.0',=0A=
      'Msxml2.XMLHTTP',=0A=
      'Microsoft.XMLHTTP');=0A=
    for (var i =3D 0; i < msxmls.length; i++) {=0A=
      try {=0A=
        return new ActiveXObject(msxmls[i]);=0A=
      } catch (e) {=0A=
      }=0A=
    }=0A=
    return null;=0A=
  };=0A=
}=0A=
// Gecko support=0A=
/* ;-) */=0A=
// Opera support=0A=
if (window.opera && !window.XMLHttpRequest) {=0A=
  window.XMLHttpRequest =3D function() {=0A=
    this.readyState =3D 0; // =
0=3Duninitialized,1=3Dloading,2=3Dloaded,3=3Dinteractive,4=3Dcomplete=0A=
    this.status =3D 0; // HTTP status codes=0A=
    this.statusText =3D '';=0A=
    this._headers =3D [];=0A=
    this._aborted =3D false;=0A=
    this._async =3D true;=0A=
    this._defaultCharset =3D 'ISO-8859-1';=0A=
    this._getCharset =3D function() {=0A=
      var charset =3D _defaultCharset;=0A=
      var contentType =3D =
this.getResponseHeader('Content-type').toUpperCase();=0A=
      val =3D contentType.indexOf('CHARSET=3D');=0A=
      if (val !=3D -1) {=0A=
        charset =3D contentType.substring(val);=0A=
      }=0A=
      val =3D charset.indexOf(';');=0A=
      if (val !=3D -1) {=0A=
        charset =3D charset.substring(0, val);=0A=
      }=0A=
      val =3D charset.indexOf(',');=0A=
      if (val !=3D -1) {=0A=
        charset =3D charset.substring(0, val);=0A=
      }=0A=
      return charset;=0A=
    };=0A=
    this.abort =3D function() {=0A=
      this._aborted =3D true;=0A=
    };=0A=
    this.getAllResponseHeaders =3D function() {=0A=
      return this.getAllResponseHeader('*');=0A=
    };=0A=
    this.getAllResponseHeader =3D function(header) {=0A=
      var ret =3D '';=0A=
      for (var i =3D 0; i < this._headers.length; i++) {=0A=
        if (header =3D=3D '*' || this._headers[i].h =3D=3D header) {=0A=
          ret +=3D this._headers[i].h + ': ' + this._headers[i].v + '\n';=0A=
        }=0A=
      }=0A=
      return ret;=0A=
    };=0A=
    this.getResponseHeader =3D function(header) {=0A=
      var ret =3D getAllResponseHeader(header);=0A=
      var i =3D ret.indexOf('\n');=0A=
      if (i !=3D -1) {=0A=
        ret =3D ret.substring(0, i);=0A=
      }=0A=
      return ret;=0A=
    };=0A=
    this.setRequestHeader =3D function(header, value) {=0A=
      this._headers[this._headers.length] =3D {h:header, v:value};=0A=
    };=0A=
    this.open =3D function(method, url, async, user, password) {=0A=
      this.method =3D method;=0A=
      this.url =3D url;=0A=
      this._async =3D true;=0A=
      this._aborted =3D false;=0A=
      this._headers =3D [];=0A=
      if (arguments.length >=3D 3) {=0A=
        this._async =3D async;=0A=
      }=0A=
      if (arguments.length > 3) {=0A=
        opera.postError('XMLHttpRequest.open() - user/password not =
supported');=0A=
      }=0A=
      this.readyState =3D 1;=0A=
      if (this.onreadystatechange) {=0A=
        this.onreadystatechange();=0A=
      }=0A=
    };=0A=
    this.send =3D function(data) {=0A=
      if (!navigator.javaEnabled()) {=0A=
        alert("XMLHttpRequest.send() - Java must be installed and =
enabled.");=0A=
        return;=0A=
      }=0A=
      if (this._async) {=0A=
        setTimeout(this._sendasync, 0, this, data);=0A=
        // this is not really asynchronous and won't execute until the =
current=0A=
        // execution context ends=0A=
      } else {=0A=
        this._sendsync(data);=0A=
      }=0A=
    }=0A=
    this._sendasync =3D function(req, data) {=0A=
      if (!req._aborted) {=0A=
        req._sendsync(data);=0A=
      }=0A=
    };=0A=
    this._sendsync =3D function(data) {=0A=
      this.readyState =3D 2;=0A=
      if (this.onreadystatechange) {=0A=
        this.onreadystatechange();=0A=
      }=0A=
      // open connection=0A=
      var url =3D new java.net.URL(new =
java.net.URL(window.location.href), this.url);=0A=
      var conn =3D url.openConnection();=0A=
      for (var i =3D 0; i < this._headers.length; i++) {=0A=
        conn.setRequestProperty(this._headers[i].h, this._headers[i].v);=0A=
      }=0A=
      this._headers =3D [];=0A=
      if (this.method =3D=3D 'POST') {=0A=
        // POST data=0A=
        conn.setDoOutput(true);=0A=
        var wr =3D new =
java.io.OutputStreamWriter(conn.getOutputStream(), this._getCharset());=0A=
        wr.write(data);=0A=
        wr.flush();=0A=
        wr.close();=0A=
      }=0A=
      // read response headers=0A=
      // NOTE: the getHeaderField() methods always return nulls for me :(=0A=
      var gotContentEncoding =3D false;=0A=
      var gotContentLength =3D false;=0A=
      var gotContentType =3D false;=0A=
      var gotDate =3D false;=0A=
      var gotExpiration =3D false;=0A=
      var gotLastModified =3D false;=0A=
      for (var i =3D 0; ; i++) {=0A=
        var hdrName =3D conn.getHeaderFieldKey(i);=0A=
        var hdrValue =3D conn.getHeaderField(i);=0A=
        if (hdrName =3D=3D null && hdrValue =3D=3D null) {=0A=
          break;=0A=
        }=0A=
        if (hdrName !=3D null) {=0A=
          this._headers[this._headers.length] =3D {h:hdrName, =
v:hdrValue};=0A=
          switch (hdrName.toLowerCase()) {=0A=
            case 'content-encoding': gotContentEncoding =3D true; break;=0A=
            case 'content-length'  : gotContentLength   =3D true; break;=0A=
            case 'content-type'    : gotContentType     =3D true; break;=0A=
            case 'date'            : gotDate            =3D true; break;=0A=
            case 'expires'         : gotExpiration      =3D true; break;=0A=
            case 'last-modified'   : gotLastModified    =3D true; break;=0A=
          }=0A=
        }=0A=
      }=0A=
      // try to fill in any missing header information=0A=
      var val;=0A=
      val =3D conn.getContentEncoding();=0A=
      if (val !=3D null && !gotContentEncoding) =
this._headers[this._headers.length] =3D {h:'Content-encoding', v:val};=0A=
      val =3D conn.getContentLength();=0A=
      if (val !=3D -1 && !gotContentLength) =
this._headers[this._headers.length] =3D {h:'Content-length', v:val};=0A=
      val =3D conn.getContentType();=0A=
      if (val !=3D null && !gotContentType) =
this._headers[this._headers.length] =3D {h:'Content-type', v:val};=0A=
      val =3D conn.getDate();=0A=
      if (val !=3D 0 && !gotDate) this._headers[this._headers.length] =
=3D {h:'Date', v:(new Date(val)).toUTCString()};=0A=
      val =3D conn.getExpiration();=0A=
      if (val !=3D 0 && !gotExpiration) =
this._headers[this._headers.length] =3D {h:'Expires', v:(new =
Date(val)).toUTCString()};=0A=
      val =3D conn.getLastModified();=0A=
      if (val !=3D 0 && !gotLastModified) =
this._headers[this._headers.length] =3D {h:'Last-modified', v:(new =
Date(val)).toUTCString()};=0A=
      // read response data=0A=
      var reqdata =3D '';=0A=
      var stream =3D conn.getInputStream();=0A=
      if (stream) {=0A=
        var reader =3D new java.io.BufferedReader(new =
java.io.InputStreamReader(stream, this._getCharset()));=0A=
        var line;=0A=
        while ((line =3D reader.readLine()) !=3D null) {=0A=
          if (this.readyState =3D=3D 2) {=0A=
            this.readyState =3D 3;=0A=
            if (this.onreadystatechange) {=0A=
              this.onreadystatechange();=0A=
            }=0A=
          }=0A=
          reqdata +=3D line + '\n';=0A=
        }=0A=
        reader.close();=0A=
        this.status =3D 200;=0A=
        this.statusText =3D 'OK';=0A=
        this.responseText =3D reqdata;=0A=
        this.readyState =3D 4;=0A=
        if (this.onreadystatechange) {=0A=
          this.onreadystatechange();=0A=
        }=0A=
        if (this.onload) {=0A=
          this.onload();=0A=
        }=0A=
      } else {=0A=
        // error=0A=
        this.status =3D 404;=0A=
        this.statusText =3D 'Not Found';=0A=
        this.responseText =3D '';=0A=
        this.readyState =3D 4;=0A=
        if (this.onreadystatechange) {=0A=
          this.onreadystatechange();=0A=
        }=0A=
        if (this.onerror) {=0A=
          this.onerror();=0A=
        }=0A=
      }=0A=
    };=0A=
  };=0A=
}=0A=
// ActiveXObject emulation=0A=
if (!window.ActiveXObject && window.XMLHttpRequest) {=0A=
  window.ActiveXObject =3D function(type) {=0A=
    switch (type.toLowerCase()) {=0A=
      case 'microsoft.xmlhttp':=0A=
      case 'msxml2.xmlhttp':=0A=
      case 'msxml2.xmlhttp.3.0':=0A=
      case 'msxml2.xmlhttp.4.0':=0A=
      case 'msxml2.xmlhttp.5.0':=0A=
        return new XMLHttpRequest();=0A=
    }=0A=
    return null;=0A=
  };=0A=
}=0A=

------=_NextPart_000_0000_01C85868.EE2C41A0
Content-Type: application/octet-stream
Content-Transfer-Encoding: quoted-printable
Content-Location: http://cancerres.aacrjournals.org/javascript/ajax/utility.js

/************************************************************************=
*****=0A=
 * javascript/ajax/utility.js=0A=
 *=0A=
 * Utility functions for working with XMLHttpRequest data.=0A=
 *=0A=
 * Copyright 2006 Board of Trustees of the Leland Stanford Junior =
University.=0A=
 =
*************************************************************************=
***/=0A=
=0A=
/*=0A=
 * Copy XML nodes into an HTMLElement. This effectively=0A=
 * clones XML markup which uses XHTML naming conventions=0A=
 * into an HTML DOM.=0A=
 */=0A=
function copy_xml_to_html(src, dst) {=0A=
  if (src.nodeType =3D=3D 1) { /* Node.ELEMENT_NODE */=0A=
    var e =3D document.createElement(src.nodeName);=0A=
    for (var i =3D 0; i < src.childNodes.length; i++) {=0A=
	  copy_xml_to_html(src.childNodes[i], e);=0A=
    }=0A=
    for (var i =3D 0; i < src.attributes.length; i++) {=0A=
      var n =3D src.attributes[i].name;=0A=
      var v =3D unescape_xml_string(src.attributes[i].value);      =0A=
      e.setAttribute(n, v);=0A=
      if (n =3D=3D "class") {=0A=
        e.className =3D v;=0A=
      }=0A=
      else if (n =3D=3D "style") {=0A=
        set_css_style(v, e, "");=0A=
      }=0A=
    }=0A=
    dst.appendChild(e);=0A=
  }=0A=
  else if (src.nodeType =3D=3D 3) { /* Node.TEXT_NODE */=0A=
    dst.appendChild(document.createTextNode(src.nodeValue));=0A=
  }=0A=
}=0A=
=0A=
/* =0A=
 * It is unclear that this is the right thing to be calling=0A=
 * from copy_xml_to_html, but it appears that Safari decides=0A=
 * to convert &amp; to the NCR &#35;, and then encodes that=0A=
 * NCR to &%26%2338;.  So, I'm going to treat the DOM Attr=0A=
 * value as a plain string, and run our XML string input=0A=
 * through the decoding routine below.=0A=
 */=0A=
function unescape_xml_string(s) {=0A=
  return s.replace(/&apos;/g, "'")=0A=
          .replace(/&#39;/g,  "'")=0A=
          .replace(/&quot;/g, "\"")=0A=
          .replace(/&#34;/g,  "\"")=0A=
          .replace(/&gt;/g,   ">")=0A=
          .replace(/&#62;/g,  ">")=0A=
          .replace(/&lt;/g,   "<")=0A=
          .replace(/&#60;/g,  "<")=0A=
          .replace(/&amp;/g,  "&")=0A=
          .replace(/&#38;/g,  "&");=0A=
}=0A=
=0A=
/*=0A=
 * Parse set of CSS rules and apply them to an element.=0A=
 * This is quite horrifying, but I'm unable to determine=0A=
 * how else to handle this with IE 6.  FireFox and other=0A=
 * sane browsers let you simply set the style attribute=0A=
 * or use e.style.setProperty(rule, value, priority),=0A=
 * IE 6 appears to have neither of these capabilities..=0A=
 */=0A=
function set_css_style(css, e, priority) {=0A=
  var rules =3D css.split(";");=0A=
  for (var i =3D 0; i < rules.length; i++) {=0A=
    var nvpair =3D rules[i].split(":");=0A=
    if (nvpair.length =3D=3D 2) {=0A=
      try {=0A=
        var name  =3D nvpair[0]; /* style attribute */=0A=
        var value =3D nvpair[1]; /* attribute value */=0A=
  =0A=
        /*=0A=
         * For each possible style attribute, set the=0A=
         * appropriate style property in the element.=0A=
         */=0A=
        if (name =3D=3D "background") {=0A=
           e.style.background =3D value;=0A=
        }=0A=
        else if (name =3D=3D "background-attachment") {=0A=
          e.style.backgroundAttachment =3D value;=0A=
        }=0A=
        else if (name =3D=3D "background-color") {=0A=
          e.style.backgroundColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "background-image") {=0A=
          e.style.backgroundImage =3D value;=0A=
        }=0A=
        else if (name =3D=3D "background-position") {=0A=
          e.style.backgroundPosition =3D value;=0A=
        }=0A=
        else if (name =3D=3D "background-position-x") {=0A=
          e.style.backgroundPositionX =3D value;=0A=
        }=0A=
        else if (name =3D=3D "background-position-y") {=0A=
          e.style.backgroundPositionY =3D value;=0A=
        }=0A=
        else if (name =3D=3D "background-repeat") {=0A=
          e.style.backgroundRepeat =3D value;=0A=
        }=0A=
        else if (name =3D=3D "behavior") {=0A=
          e.style.behavior =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border") {=0A=
          e.style.border =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-bottom") {=0A=
          e.style.borderBottom =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-bottom-color") {=0A=
          e.style.borderBottomColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-bottom-style") {=0A=
          e.style.borderBottomStyle =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-bottom-width") {=0A=
          e.style.borderBottomWidth =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-collapse") {=0A=
          e.style.borderCollapse =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-color") {=0A=
          e.style.borderColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-left") {=0A=
          e.style.borderLeft =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-left-color") {=0A=
          e.style.borderLeftColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-left-style") {=0A=
          e.style.borderLeftStyle =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-left-width") {=0A=
          e.style.borderLeftWidth =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-right") {=0A=
          e.style.borderRight =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-right-color") {=0A=
          e.style.borderRightColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-right-style") {=0A=
          e.style.borderRightStyle =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-right-width") {=0A=
          e.style.borderRightWidth =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-style") {=0A=
          e.style.borderStyle =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-top") {=0A=
          e.style.borderTop =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-top-color") {=0A=
          e.style.borderTopColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-top-style") {=0A=
          e.style.borderTopStyle =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-top-width") {=0A=
          e.style.borderTopWidth =3D value;=0A=
        }=0A=
        else if (name =3D=3D "border-width") {=0A=
          e.style.borderWidth =3D value;=0A=
        }=0A=
        else if (name =3D=3D "bottom") {=0A=
          e.style.bottom =3D value;=0A=
        }=0A=
        else if (name =3D=3D "clear") {=0A=
          e.style.clear =3D value;=0A=
        }=0A=
        else if (name =3D=3D "clip") {=0A=
          e.style.clip =3D value;=0A=
        }=0A=
        else if (name =3D=3D "color") {=0A=
          e.style.color =3D value;=0A=
        }=0A=
        else if (name =3D=3D "cssText") {=0A=
          e.style.Sets =3D value;=0A=
        }=0A=
        else if (name =3D=3D "cursor") {=0A=
          e.style.cursor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "direction") {=0A=
          e.style.direction =3D value;=0A=
        }=0A=
        else if (name =3D=3D "display") {=0A=
          e.style.display =3D value;=0A=
        }=0A=
        else if (name =3D=3D "font") {=0A=
          e.style.font =3D value;=0A=
        }=0A=
        else if (name =3D=3D "font-family") {=0A=
          e.style.fontFamily =3D value;=0A=
        }=0A=
        else if (name =3D=3D "font-size") {=0A=
          e.style.fontSize =3D value;=0A=
        }=0A=
        else if (name =3D=3D "font-style") {=0A=
          e.style.fontStyle =3D value;=0A=
        }=0A=
        else if (name =3D=3D "font-variant") {=0A=
          e.style.fontVariant =3D value;=0A=
        }=0A=
        else if (name =3D=3D "font-weight") {=0A=
          e.style.fontWeight =3D value;=0A=
        }=0A=
        else if (name =3D=3D "height") {=0A=
          e.style.height =3D value;=0A=
        }=0A=
        else if (name =3D=3D "ime-mode") {=0A=
          e.style.imeMode =3D value;=0A=
        }=0A=
        else if (name =3D=3D "layout-flow") {=0A=
          e.style.layoutFlow =3D value;=0A=
        }=0A=
        else if (name =3D=3D "layout-grid") {=0A=
          e.style.layoutGrid =3D value;=0A=
        }=0A=
        else if (name =3D=3D "layout-grid-char") {=0A=
          e.style.layoutGridChar =3D value;=0A=
        }=0A=
        else if (name =3D=3D "layout-grid-line") {=0A=
          e.style.layoutGridLine =3D value;=0A=
        }=0A=
        else if (name =3D=3D "layout-grid-mode") {=0A=
          e.style.layoutGridMode =3D value;=0A=
        }=0A=
        else if (name =3D=3D "layout-grid-type") {=0A=
          e.style.layoutGridType =3D value;=0A=
        }=0A=
        else if (name =3D=3D "left") {=0A=
          e.style.left =3D value;=0A=
        }=0A=
        else if (name =3D=3D "letter-spacing") {=0A=
          e.style.letterSpacing =3D value;=0A=
        }=0A=
        else if (name =3D=3D "line-break") {=0A=
          e.style.lineBreak =3D value;=0A=
        }=0A=
        else if (name =3D=3D "line-height") {=0A=
          e.style.lineHeight =3D value;=0A=
        }=0A=
        else if (name =3D=3D "list-style") {=0A=
          e.style.listStyle =3D value;=0A=
        }=0A=
        else if (name =3D=3D "list-style-image") {=0A=
          e.style.listStyleImage =3D value;=0A=
        }=0A=
        else if (name =3D=3D "list-style-position") {=0A=
          e.style.listStylePosition =3D value;=0A=
        }=0A=
        else if (name =3D=3D "list-style-type") {=0A=
          e.style.listStyleType =3D value;=0A=
        }=0A=
        else if (name =3D=3D "margin") {=0A=
          e.style.margin =3D value;=0A=
        }=0A=
        else if (name =3D=3D "margin-bottom") {=0A=
          e.style.marginBottom =3D value;=0A=
        }=0A=
        else if (name =3D=3D "margin-left") {=0A=
          e.style.marginLeft =3D value;=0A=
        }=0A=
        else if (name =3D=3D "margin-right") {=0A=
          e.style.marginRight =3D value;=0A=
        }=0A=
        else if (name =3D=3D "margin-top") {=0A=
          e.style.marginTop =3D value;=0A=
        }=0A=
        else if (name =3D=3D "min-height") {=0A=
          e.style.minHeight =3D value;=0A=
        }=0A=
        else if (name =3D=3D "overflow") {=0A=
          e.style.overflow =3D value;=0A=
        }=0A=
        else if (name =3D=3D "overflow-x") {=0A=
          e.style.overflowX =3D value;=0A=
        }=0A=
        else if (name =3D=3D "overflow-y") {=0A=
          e.style.overflowY =3D value;=0A=
        }=0A=
        else if (name =3D=3D "padding") {=0A=
          e.style.padding =3D value;=0A=
        }=0A=
        else if (name =3D=3D "padding-bottom") {=0A=
          e.style.paddingBottom =3D value;=0A=
        }=0A=
        else if (name =3D=3D "padding-left") {=0A=
          e.style.paddingLeft =3D value;=0A=
        }=0A=
        else if (name =3D=3D "padding-right") {=0A=
          e.style.paddingRight =3D value;=0A=
        }=0A=
        else if (name =3D=3D "padding-top") {=0A=
          e.style.paddingTop =3D value;=0A=
        }=0A=
        else if (name =3D=3D "page-break-after") {=0A=
          e.style.pageBreakAfter =3D value;=0A=
        }=0A=
        else if (name =3D=3D "page-break-before") {=0A=
          e.style.pageBreakBefore =3D value;=0A=
        }=0A=
        else if (name =3D=3D "pixelBottom") {=0A=
          e.style.pixelBottom =3D value;=0A=
        }=0A=
        else if (name =3D=3D "pixelHeight") {=0A=
          e.style.pixelHeight =3D value;=0A=
        }=0A=
        else if (name =3D=3D "pixelLeft") {=0A=
          e.style.pixelLeft =3D value;=0A=
        }=0A=
        else if (name =3D=3D "pixelRight") {=0A=
          e.style.pixelRight =3D value;=0A=
        }=0A=
        else if (name =3D=3D "pixelTop") {=0A=
          e.style.pixelTop =3D value;=0A=
        }=0A=
        else if (name =3D=3D "pixelWidth") {=0A=
          e.style.pixelWidth =3D value;=0A=
        }=0A=
        else if (name =3D=3D "posBottom") {=0A=
          e.style.posBottom =3D value;=0A=
        }=0A=
        else if (name =3D=3D "posHeight") {=0A=
          e.style.posHeight =3D value;=0A=
        }=0A=
        else if (name =3D=3D "position") {=0A=
          e.style.position =3D value;=0A=
        }=0A=
        else if (name =3D=3D "posLeft") {=0A=
          e.style.posLeft =3D value;=0A=
        }=0A=
        else if (name =3D=3D "posRight") {=0A=
          e.style.posRight =3D value;=0A=
        }=0A=
        else if (name =3D=3D "posTop") {=0A=
          e.style.posTop =3D value;=0A=
        }=0A=
        else if (name =3D=3D "posWidth") {=0A=
          e.style.posWidth =3D value;=0A=
        }=0A=
        else if (name =3D=3D "right") {=0A=
          e.style.right =3D value;=0A=
        }=0A=
        else if (name =3D=3D "ruby-align") {=0A=
          e.style.rubyAlign =3D value;=0A=
        }=0A=
        else if (name =3D=3D "ruby-overhang") {=0A=
          e.style.rubyOverhang =3D value;=0A=
        }=0A=
        else if (name =3D=3D "ruby-position") {=0A=
          e.style.rubyPosition =3D value;=0A=
        }=0A=
        else if (name =3D=3D "scrollbar-3dlight-color") {=0A=
          e.style.scrollbar3dLightColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "scrollbar-arrow-color") {=0A=
          e.style.scrollbarArrowColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "scrollbar-base-color") {=0A=
          e.style.scrollbarBaseColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "scrollbar-darkshadow-color") {=0A=
          e.style.scrollbarDarkShadowColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "scrollbar-face-color") {=0A=
          e.style.scrollbarFaceColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "scrollbar-highlight-color") {=0A=
          e.style.scrollbarHighlightColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "scrollbar-shadow-color") {=0A=
          e.style.scrollbarShadowColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "scrollbar-track-color") {=0A=
          e.style.scrollbarTrackColor =3D value;=0A=
        }=0A=
        else if (name =3D=3D "float") {=0A=
          e.style.styleFloat =3D value;=0A=
        }=0A=
        else if (name =3D=3D "table-layout") {=0A=
          e.style.tableLayout =3D value;=0A=
        }=0A=
        else if (name =3D=3D "text-align") {=0A=
          e.style.textAlign =3D value;=0A=
        }=0A=
        else if (name =3D=3D "text-align-last") {=0A=
          e.style.textAlignLast =3D value;=0A=
        }=0A=
        else if (name =3D=3D "text-autospace") {=0A=
          e.style.textAutospace =3D value;=0A=
        }=0A=
        else if (name =3D=3D "text-decoration") {=0A=
          e.style.textDecoration =3D value;=0A=
        }=0A=
        else if (name =3D=3D "textDecorationBlink") {=0A=
          e.style.textDecorationBlink =3D value;=0A=
        }=0A=
        else if (name =3D=3D "textDecorationLineThrough") {=0A=
          e.style.textDecorationLineThrough =3D value;=0A=
        }=0A=
        else if (name =3D=3D "textDecorationNone") {=0A=
          e.style.textDecorationNone =3D value;=0A=
        }=0A=
        else if (name =3D=3D "textDecorationOverline") {=0A=
          e.style.textDecorationOverline =3D value;=0A=
        }=0A=
        else if (name =3D=3D "textDecorationUnderline") {=0A=
          e.style.textDecorationUnderline =3D value;=0A=
        }=0A=
        else if (name =3D=3D "text-indent") {=0A=
          e.style.textIndent =3D value;=0A=
        }=0A=
        else if (name =3D=3D "text-justify") {=0A=
          e.style.textJustify =3D value;=0A=
        }=0A=
        else if (name =3D=3D "text-kashida-space") {=0A=
          e.style.textKashidaSpace =3D value;=0A=
        }=0A=
        else if (name =3D=3D "text-overflow") {=0A=
          e.style.textOverflow =3D value;=0A=
        }=0A=
        else if (name =3D=3D "text-transform") {=0A=
          e.style.textTransform =3D value;=0A=
        }=0A=
        else if (name =3D=3D "text-underline-position") {=0A=
          e.style.textUnderlinePosition =3D value;=0A=
        }=0A=
        else if (name =3D=3D "top") {=0A=
          e.style.top =3D value;=0A=
        }=0A=
        else if (name =3D=3D "unicode-bidi") {=0A=
          e.style.unicodeBidi =3D value;=0A=
        }=0A=
        else if (name =3D=3D "vertical-align") {=0A=
          e.style.verticalAlign =3D value;=0A=
        }=0A=
        else if (name =3D=3D "visibility") {=0A=
          e.style.visibility =3D value;=0A=
        }=0A=
        else if (name =3D=3D "white-space") {=0A=
          e.style.whiteSpace =3D value;=0A=
        }=0A=
        else if (name =3D=3D "width") {=0A=
          e.style.width =3D value;=0A=
        }=0A=
        else if (name =3D=3D "word-break") {=0A=
          e.style.wordBreak =3D value;=0A=
        }=0A=
        else if (name =3D=3D "word-spacing") {=0A=
          e.style.wordSpacing =3D value;=0A=
        }=0A=
        else if (name =3D=3D "word-wrap") {=0A=
          e.style.wordWrap =3D value;=0A=
        }=0A=
        else if (name =3D=3D "writing-mode") {=0A=
          e.style.writingMode =3D value;=0A=
        }=0A=
        else if (name =3D=3D "z-index") {=0A=
          e.style.zIndex =3D value;=0A=
        }=0A=
        else if (name =3D=3D "zoom") {=0A=
          e.style.zoom =3D value;=0A=
        }=0A=
      }=0A=
      catch (e) {=0A=
        /* ignore error on attempt to set e.style.[property] */=0A=
      }=0A=
    }=0A=
  }=0A=
}=0A=

------=_NextPart_000_0000_01C85868.EE2C41A0
Content-Type: application/octet-stream
Content-Transfer-Encoding: quoted-printable
Content-Location: http://cancerres.aacrjournals.org/javascript/entrez/callback.js

/************************************************************************=
*****=0A=
 * javascript/entrez/callback.js=0A=
 *=0A=
 * Entrez Linking callback to populate content box.=0A=
 *=0A=
 * Copyright 2006 Board of Trustees of the Leland Stanford Junior =
University.=0A=
 =
*************************************************************************=
***/=0A=
=0A=
/*=0A=
 * Execute callback to fill content box with Entrez Linking information.=0A=
 */=0A=
function entrez_callback(pmid, callback_url) {=0A=
  /*=0A=
   * MSIE 5.5 and below have issues with the JavaScript=0A=
   * used for Entrez Linking. For now we have to disable=0A=
   * the callback until we can track down a proper fix=0A=
   * (or everybody sanely upgrades to version 6 or 7!).=0A=
   */=0A=
  if (navigator) {=0A=
    var appname =3D navigator.appName;=0A=
    if (appname =3D=3D "Microsoft Internet Explorer") {=0A=
      var userAgent =3D navigator["userAgent"];=0A=
      var s =3D "MSIE ";=0A=
      var n =3D -1;      =0A=
      if ((n =3D userAgent.indexOf(s)) !=3D -1) {=0A=
        var v =3D parseFloat(userAgent.substring(n+s.length));=0A=
        if (v < 6) {=0A=
          return;=0A=
        }=0A=
      }=0A=
    }=0A=
  }=0A=
=0A=
  /*=0A=
   * Acquire table row element to update, initiate callback=0A=
   * to update table with Entrez Links.=0A=
   */=0A=
  var tr =3D document.getElementById('entrez_callback_'+pmid);=0A=
  if (!tr) {=0A=
    return;=0A=
  }=0A=
  var req =3D new XMLHttpRequest();=0A=
  if (!req) {=0A=
    return;=0A=
  }=0A=
  req.onreadystatechange =3D function() {=0A=
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=3D=3D 304)) {=0A=
      var src =3D req.responseXML.documentElement;=0A=
      var dst =3D document.createDocumentFragment();=0A=
      for (var i =3D 0; i < src.childNodes.length; i++) {=0A=
      	copy_xml_to_html(src.childNodes[i], dst);=0A=
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      var tbl =3D tr.parentNode;=0A=
      tbl.replaceChild(dst, tr);=0A=
    }=0A=
  }=0A=
  req.open('GET', callback_url, true);=0A=
  req.send(null);=0A=
}=0A=

------=_NextPart_000_0000_01C85868.EE2C41A0
Content-Type: application/octet-stream
Content-Transfer-Encoding: quoted-printable
Content-Location: http://www.google-analytics.com/urchin.js

//-- Google Analytics Urchin Module=0A=
//-- Copyright 2007 Google, All Rights Reserved.=0A=
=0A=
//-- Urchin On Demand Settings ONLY=0A=
var _uacct=3D"";			// set up the Urchin Account=0A=
var _userv=3D1;			// service mode (0=3Dlocal,1=3Dremote,2=3Dboth)=0A=
=0A=
//-- UTM User Settings=0A=
var _ufsc=3D1;			// set client info flag (1=3Don|0=3Doff)=0A=
var _udn=3D"auto";		// (auto|none|domain) set the domain name for cookies=0A=
var _uhash=3D"on";		// (on|off) unique domain hash for cookies=0A=
var _utimeout=3D"1800";   	// set the inactive session timeout in seconds=0A=
var _ugifpath=3D"/__utm.gif";	// set the web path to the __utm.gif file=0A=
var _utsp=3D"|";			// transaction field separator=0A=
var _uflash=3D1;			// set flash version detect option (1=3Don|0=3Doff)=0A=
var _utitle=3D1;			// set the document title detect option =
(1=3Don|0=3Doff)=0A=
var _ulink=3D0;			// enable linker functionality (1=3Don|0=3Doff)=0A=
var _uanchor=3D0;			// enable use of anchors for campaign =
(1=3Don|0=3Doff)=0A=
var _utcp=3D"/";			// the cookie path for tracking=0A=
var _usample=3D100;		// The sampling % of visitors to track (1-100).=0A=
=0A=
//-- UTM Campaign Tracking Settings=0A=
var _uctm=3D1;			// set campaign tracking module (1=3Don|0=3Doff)=0A=
var _ucto=3D"15768000";		// set timeout in seconds (6 month default)=0A=
var _uccn=3D"utm_campaign";	// name=0A=
var _ucmd=3D"utm_medium";		// medium (cpc|cpm|link|email|organic)=0A=
var _ucsr=3D"utm_source";		// source=0A=
var _uctr=3D"utm_term";		// term/keyword=0A=
var _ucct=3D"utm_content";	// content=0A=
var _ucid=3D"utm_id";		// id number=0A=
var _ucno=3D"utm_nooverride";	// don't override=0A=
=0A=
//-- Auto/Organic Sources and Keywords=0A=
var _uOsr=3Dnew Array();=0A=
var _uOkw=3Dnew Array();=0A=
_uOsr[0]=3D"google";	_uOkw[0]=3D"q";=0A=
_uOsr[1]=3D"yahoo";	_uOkw[1]=3D"p";=0A=
_uOsr[2]=3D"msn";		_uOkw[2]=3D"q";=0A=
_uOsr[3]=3D"aol";		_uOkw[3]=3D"query";=0A=
_uOsr[4]=3D"aol";		_uOkw[4]=3D"encquery";=0A=
_uOsr[5]=3D"lycos";	_uOkw[5]=3D"query";=0A=
_uOsr[6]=3D"ask";		_uOkw[6]=3D"q";=0A=
_uOsr[7]=3D"altavista";	_uOkw[7]=3D"q";=0A=
_uOsr[8]=3D"netscape";	_uOkw[8]=3D"query";=0A=
_uOsr[9]=3D"cnn";	_uOkw[9]=3D"query";=0A=
_uOsr[10]=3D"looksmart";	_uOkw[10]=3D"qt";=0A=
_uOsr[11]=3D"about";	_uOkw[11]=3D"terms";=0A=
_uOsr[12]=3D"mamma";	_uOkw[12]=3D"query";=0A=
_uOsr[13]=3D"alltheweb";	_uOkw[13]=3D"q";=0A=
_uOsr[14]=3D"gigablast";	_uOkw[14]=3D"q";=0A=
_uOsr[15]=3D"voila";	_uOkw[15]=3D"rdata";=0A=
_uOsr[16]=3D"virgilio";	_uOkw[16]=3D"qs";=0A=
_uOsr[17]=3D"live";	_uOkw[17]=3D"q";=0A=
_uOsr[18]=3D"baidu";	_uOkw[18]=3D"wd";=0A=
_uOsr[19]=3D"alice";	_uOkw[19]=3D"qs";=0A=
_uOsr[20]=3D"yandex";	_uOkw[20]=3D"text";=0A=
_uOsr[21]=3D"najdi";	_uOkw[21]=3D"q";=0A=
_uOsr[22]=3D"aol";	_uOkw[22]=3D"q";=0A=
_uOsr[23]=3D"club-internet"; _uOkw[23]=3D"q";=0A=
_uOsr[24]=3D"mama";	_uOkw[24]=3D"query";=0A=
_uOsr[25]=3D"seznam";	_uOkw[25]=3D"q";=0A=
_uOsr[26]=3D"search";	_uOkw[26]=3D"q";=0A=
_uOsr[27]=3D"szukaj";	_uOkw[27]=3D"szukaj";=0A=
_uOsr[28]=3D"szukaj";	_uOkw[28]=3D"qt";=0A=
_uOsr[29]=3D"netsprint";	_uOkw[29]=3D"q";=0A=
_uOsr[30]=3D"google.interia";	_uOkw[30]=3D"q";=0A=
_uOsr[31]=3D"szukacz";	_uOkw[31]=3D"q";=0A=
_uOsr[32]=3D"yam";	_uOkw[32]=3D"k";=0A=
_uOsr[33]=3D"pchome";	_uOkw[33]=3D"q";=0A=
=0A=
=0A=
//-- Auto/Organic Keywords to Ignore=0A=
var _uOno=3Dnew Array();=0A=
//_uOno[0]=3D"urchin";=0A=
//_uOno[1]=3D"urchin.com";=0A=
//_uOno[2]=3D"www.urchin.com";=0A=
=0A=
//-- Referral domains to Ignore=0A=
var _uRno=3Dnew Array();=0A=
//_uRno[0]=3D".urchin.com";=0A=
=0A=
//-- **** Don't modify below this point ***=0A=
var =
_uff,_udh,_udt,_ubl=3D0,_udo=3D"",_uu,_ufns=3D0,_uns=3D0,_ur=3D"-",_ufno=3D=
0,_ust=3D0,_ubd=3Ddocument,_udl=3D_ubd.location,_udlh=3D"",_uwv=3D"1";=0A=
var _ugifpath2=3D"http://www.google-analytics.com/__utm.gif";=0A=
if (_udl.hash) _udlh=3D_udl.href.substring(_udl.href.indexOf('#'));=0A=
if (_udl.protocol=3D=3D"https:") =
_ugifpath2=3D"https://ssl.google-analytics.com/__utm.gif";=0A=
if (!_utcp || _utcp=3D=3D"") _utcp=3D"/";=0A=
function urchinTracker(page) {=0A=
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 var nx=3D" expires=3D"+_uNx()+";";=0A=
 var dc=3D_ubd.cookie;=0A=
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 if (!_uVG()) return;=0A=
 _uu=3DMath.round(Math.random()*2147483647);=0A=
 _udt=3Dnew Date();=0A=
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 a=3Ddc.indexOf("__utma=3D"+_udh);=0A=
 b=3Ddc.indexOf("__utmb=3D"+_udh);=0A=
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 if (_udn && _udn!=3D"") { _udo=3D" domain=3D"+_udn+";"; }=0A=
 if (_utimeout && _utimeout!=3D"") {=0A=
  x=3Dnew Date(_udt.getTime()+(_utimeout*1000));=0A=
  x=3D" expires=3D"+x.toGMTString()+";";=0A=
 }=0A=
 if (_ulink) {=0A=
  if (_uanchor && _udlh && _udlh!=3D"") s=3D_udlh+"&";=0A=
  s+=3D_udl.search;=0A=
  if(s && s!=3D"" && s.indexOf("__utma=3D")>=3D0) {=0A=
   if (!(_uIN(a=3D_uGC(s,"__utma=3D","&")))) a=3D"-";=0A=
   if (!(_uIN(b=3D_uGC(s,"__utmb=3D","&")))) b=3D"-";=0A=
   if (!(_uIN(c=3D_uGC(s,"__utmc=3D","&")))) c=3D"-";=0A=
   v=3D_uGC(s,"__utmv=3D","&");=0A=
   z=3D_uGC(s,"__utmz=3D","&");=0A=
   k=3D_uGC(s,"__utmk=3D","&");=0A=
   xx=3D_uGC(s,"__utmx=3D","&");=0A=
   if ((k*1) !=3D ((_uHash(a+b+c+xx+z+v)*1)+(_udh*1))) =
{_ubl=3D1;a=3D"-";b=3D"-";c=3D"-";xx=3D"-";z=3D"-";v=3D"-";}=0A=
   if (a!=3D"-" && b!=3D"-" && c!=3D"-") f=3D1;=0A=
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  }=0A=
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 if(f=3D=3D1) {=0A=
  _ubd.cookie=3D"__utma=3D"+a+"; path=3D"+_utcp+";"+nx+_udo;=0A=
  _ubd.cookie=3D"__utmb=3D"+b+"; path=3D"+_utcp+";"+x+_udo;=0A=
  _ubd.cookie=3D"__utmc=3D"+c+"; path=3D"+_utcp+";"+_udo;=0A=
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  a=3D_uFixA(s,"&",_ust);=0A=
  _ubd.cookie=3D"__utma=3D"+a+"; path=3D"+_utcp+";"+nx+_udo;=0A=
  _ubd.cookie=3D"__utmb=3D"+_udh+"; path=3D"+_utcp+";"+x+_udo;=0A=
  _ubd.cookie=3D"__utmc=3D"+_udh+"; path=3D"+_utcp+";"+_udo;=0A=
  _ufns=3D1;=0A=
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  _ubd.cookie=3D"__utmb=3D"+_udh+"; path=3D"+_utcp+";"+x+_udo;=0A=
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  if (a>=3D0) a=3D_uFixA(_ubd.cookie,";",_ust);=0A=
  else a=3D_udh+"."+_uu+"."+_ust+"."+_ust+"."+_ust+".1";=0A=
  _ubd.cookie=3D"__utma=3D"+a+"; path=3D"+_utcp+";"+nx+_udo;=0A=
  _ubd.cookie=3D"__utmb=3D"+_udh+"; path=3D"+_utcp+";"+x+_udo;=0A=
  _ubd.cookie=3D"__utmc=3D"+_udh+"; path=3D"+_utcp+";"+_udo;=0A=
  _ufns=3D1;=0A=
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 if (_ulink && xx && xx!=3D"" && xx!=3D"-") {=0A=
   xx=3D_uUES(xx);=0A=
   if (xx.indexOf(";")=3D=3D-1) _ubd.cookie=3D"__utmx=3D"+xx+"; =
path=3D"+_utcp+";"+nx+_udo;=0A=
 }=0A=
 if (_ulink && v && v!=3D"" && v!=3D"-") {=0A=
  v=3D_uUES(v);=0A=
  if (v.indexOf(";")=3D=3D-1) _ubd.cookie=3D"__utmv=3D"+v+"; =
path=3D"+_utcp+";"+nx+_udo;=0A=
 }=0A=
 _uInfo(page);=0A=
 _ufns=3D0;=0A=
 _ufno=3D0;=0A=
 if (!page || page=3D=3D"") _uff=3D1;=0A=
}=0A=
function _uInfo(page) {=0A=
 var p,s=3D"",dm=3D"",pg=3D_udl.pathname+_udl.search;=0A=
 if (page && page!=3D"") pg=3D_uES(page,1);=0A=
 _ur=3D_ubd.referrer;=0A=
 if (!_ur || _ur=3D=3D"") { _ur=3D"-"; }=0A=
 else {=0A=
  dm=3D_ubd.domain;=0A=
  if(_utcp && _utcp!=3D"/") dm+=3D_utcp;=0A=
  p=3D_ur.indexOf(dm);=0A=
  if ((p>=3D0) && (p<=3D8)) { _ur=3D"0"; }=0A=
  if (_ur.indexOf("[")=3D=3D0 && =
_ur.lastIndexOf("]")=3D=3D(_ur.length-1)) { _ur=3D"-"; }=0A=
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 s+=3D"&utmn=3D"+_uu;=0A=
 if (_ufsc) s+=3D_uBInfo();=0A=
 if (_uctm) s+=3D_uCInfo();=0A=
 if (_utitle && _ubd.title && _ubd.title!=3D"") =
s+=3D"&utmdt=3D"+_uES(_ubd.title);=0A=
 if (_udl.hostname && _udl.hostname!=3D"") =
s+=3D"&utmhn=3D"+_uES(_udl.hostname);=0A=
 s+=3D"&utmr=3D"+_ur;=0A=
 s+=3D"&utmp=3D"+pg;=0A=
 if ((_userv=3D=3D0 || _userv=3D=3D2) && _uSP()) {=0A=
  var i=3Dnew Image(1,1);=0A=
  i.src=3D_ugifpath+"?"+"utmwv=3D"+_uwv+s;=0A=
  i.onload=3Dfunction() {_uVoid();}=0A=
 }=0A=
 if ((_userv=3D=3D1 || _userv=3D=3D2) && _uSP()) {=0A=
  var i2=3Dnew Image(1,1);=0A=
  =
i2.src=3D_ugifpath2+"?"+"utmwv=3D"+_uwv+s+"&utmac=3D"+_uacct+"&utmcc=3D"+=
_uGCS();=0A=
  i2.onload=3Dfunction() { _uVoid(); }=0A=
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 return;=0A=
}=0A=
function _uVoid() { return; }=0A=
function _uCInfo() {=0A=
 if (!_ucto || _ucto=3D=3D"") { _ucto=3D"15768000"; }=0A=
 if (!_uVG()) return;=0A=
 var =
c=3D"",t=3D"-",t2=3D"-",t3=3D"-",o=3D0,cs=3D0,cn=3D0,i=3D0,z=3D"-",s=3D""=
;=0A=
 if (_uanchor && _udlh && _udlh!=3D"") s=3D_udlh+"&";=0A=
 s+=3D_udl.search;=0A=
 var x=3Dnew Date(_udt.getTime()+(_ucto*1000));=0A=
 var dc=3D_ubd.cookie;=0A=
 x=3D" expires=3D"+x.toGMTString()+";";=0A=
 if (_ulink && !_ubl) {=0A=
  z=3D_uUES(_uGC(s,"__utmz=3D","&"));=0A=
  if (z!=3D"-" && z.indexOf(";")=3D=3D-1) { =
_ubd.cookie=3D"__utmz=3D"+z+"; path=3D"+_utcp+";"+x+_udo; return ""; }=0A=
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 z=3Ddc.indexOf("__utmz=3D"+_udh);=0A=
 if (z>-1) { z=3D_uGC(dc,"__utmz=3D"+_udh,";"); }=0A=
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 t=3D_uGC(s,_ucid+"=3D","&");=0A=
 t2=3D_uGC(s,_ucsr+"=3D","&");=0A=
 t3=3D_uGC(s,"gclid=3D","&");=0A=
 if ((t!=3D"-" && t!=3D"") || (t2!=3D"-" && t2!=3D"") || (t3!=3D"-" && =
t3!=3D"")) {=0A=
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  if (t2!=3D"-" && t2!=3D"") { if (c !=3D "") c+=3D"|"; =
c+=3D"utmcsr=3D"+_uEC(t2); }=0A=
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c+=3D"utmgclid=3D"+_uEC(t3); }=0A=
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  t=3D_uGC(s,_ucmd+"=3D","&");=0A=
  if (t!=3D"-" && t!=3D"") c+=3D"|utmcmd=3D"+_uEC(t);=0A=
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  t=3D_uGC(s,_uctr+"=3D","&");=0A=
  if (t!=3D"-" && t!=3D"") c+=3D"|utmctr=3D"+_uEC(t);=0A=
  else { t=3D_uOrg(1); if (t!=3D"-" && t!=3D"") =
c+=3D"|utmctr=3D"+_uEC(t); }=0A=
  t=3D_uGC(s,_ucct+"=3D","&");=0A=
  if (t!=3D"-" && t!=3D"") c+=3D"|utmcct=3D"+_uEC(t);=0A=
  t=3D_uGC(s,_ucno+"=3D","&");=0A=
  if (t=3D=3D"1") o=3D1;=0A=
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 if (c=3D=3D"-" || c=3D=3D"") { c=3D_uOrg(); if (z!=3D"-" && =
_ufno=3D=3D1)  return ""; }=0A=
 if (c=3D=3D"-" || c=3D=3D"") { if (_ufns=3D=3D1)  c=3D_uRef(); if =
(z!=3D"-" && _ufno=3D=3D1)  return ""; }=0A=
 if (c=3D=3D"-" || c=3D=3D"") {=0A=
  if (z=3D=3D"-" && _ufns=3D=3D1) { =
c=3D"utmccn=3D(direct)|utmcsr=3D(direct)|utmcmd=3D(none)"; }=0A=
  if (c=3D=3D"-" || c=3D=3D"") return "";=0A=
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 if (z!=3D"-") {=0A=
  i=3Dz.indexOf(".");=0A=
  if (i>-1) i=3Dz.indexOf(".",i+1);=0A=
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  if (i>-1) i=3Dz.indexOf(".",i+1);=0A=
  t=3Dz.substring(i+1,z.length);=0A=
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  t=3Dz.substring(0,i);=0A=
  if ((i=3Dt.lastIndexOf(".")) > -1) {=0A=
   t=3Dt.substring(i+1,t.length);=0A=
   cn=3D(t*1);=0A=
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 if (cs=3D=3D0 || _ufns=3D=3D1) {=0A=
  t=3D_uGC(dc,"__utma=3D"+_udh,";");=0A=
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  cn++;=0A=
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path=3D"+_utcp+"; "+x+_udo;=0A=
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 if (cs=3D=3D0 || _ufns=3D=3D1) return "&utmcn=3D1";=0A=
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}=0A=
function _uRef() {=0A=
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  k=3Dh.substring(h.indexOf("/"),h.length);=0A=
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n.length=3D=3D(i+_uRno[ii].length)) { _ufno=3D1; break; }=0A=
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 if (h.indexOf("www.")=3D=3D0) h=3Dh.substring(4,h.length);=0A=
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"utmccn=3D(referral)|utmcsr=3D"+_uEC(h)+"|"+"utmcct=3D"+_uEC(k)+"|utmcmd=3D=
referral";=0A=
}=0A=
function _uOrg(t) {=0A=
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 if ((i=3D_ur.indexOf("://")) < 0) return "";=0A=
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  h=3Dh.substring(0,h.indexOf("/"));=0A=
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 for (var ii=3D0;ii<_uOsr.length;ii++) {=0A=
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   if ((i=3D_ur.indexOf("?"+_uOkw[ii]+"=3D")) > -1 || =
(i=3D_ur.indexOf("&"+_uOkw[ii]+"=3D")) > -1) {=0A=
    k=3D_ur.substring(i+_uOkw[ii].length+2,_ur.length);=0A=
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break; }=0A=
    }=0A=
    if (t) return _uEC(k);=0A=
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"utmccn=3D(organic)|utmcsr=3D"+_uEC(_uOsr[ii])+"|"+"utmctr=3D"+_uEC(k)+"|=
utmcmd=3Dorganic";=0A=
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}=0A=
function _uBInfo() {=0A=
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 var n=3Dnavigator;=0A=
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  sr=3Dscreen.width+"x"+screen.height;=0A=
  sc=3Dscreen.colorDepth+"-bit";=0A=
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  var j=3Djava.awt.Toolkit.getDefaultToolkit();=0A=
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  sr=3Ds.width+"x"+s.height;=0A=
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 if (n.language) { ul=3Dn.language.toLowerCase(); }=0A=
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 if (_uflash) fl=3D_uFlash();=0A=
 if (_ubd.characterSet) cs=3D_uES(_ubd.characterSet);=0A=
 else if (_ubd.charset) cs=3D_uES(_ubd.charset);=0A=
 return =
"&utmcs=3D"+cs+"&utmsr=3D"+sr+"&utmsc=3D"+sc+"&utmul=3D"+ul+"&utmje=3D"+j=
e+"&utmfl=3D"+fl;=0A=
}=0A=
function __utmSetTrans() {=0A=
 var e;=0A=
 if (_ubd.getElementById) e=3D_ubd.getElementById("utmtrans");=0A=
 else if (_ubd.utmform && _ubd.utmform.utmtrans) =
e=3D_ubd.utmform.utmtrans;=0A=
 if (!e) return;=0A=
 var l=3De.value.split("UTM:");=0A=
 var i,i2,c;=0A=
 if (_userv=3D=3D0 || _userv=3D=3D2) i=3Dnew Array();=0A=
 if (_userv=3D=3D1 || _userv=3D=3D2) { i2=3Dnew Array(); c=3D_uGCS(); }=0A=
=0A=
 for (var ii=3D0;ii<l.length;ii++) {=0A=
  l[ii]=3D_uTrim(l[ii]);=0A=
  if (l[ii].charAt(0)!=3D'T' && l[ii].charAt(0)!=3D'I') continue;=0A=
  var r=3DMath.round(Math.random()*2147483647);=0A=
  if (!_utsp || _utsp=3D=3D"") _utsp=3D"|";=0A=
  var f=3Dl[ii].split(_utsp),s=3D"";=0A=
  if (f[0].charAt(0)=3D=3D'T') {=0A=
   s=3D"&utmt=3Dtran"+"&utmn=3D"+r;=0A=
   f[1]=3D_uTrim(f[1]); if(f[1]&&f[1]!=3D"") =
s+=3D"&utmtid=3D"+_uES(f[1]);=0A=
   f[2]=3D_uTrim(f[2]); if(f[2]&&f[2]!=3D"") =
s+=3D"&utmtst=3D"+_uES(f[2]);=0A=
   f[3]=3D_uTrim(f[3]); if(f[3]&&f[3]!=3D"") =
s+=3D"&utmtto=3D"+_uES(f[3]);=0A=
   f[4]=3D_uTrim(f[4]); if(f[4]&&f[4]!=3D"") =
s+=3D"&utmttx=3D"+_uES(f[4]);=0A=
   f[5]=3D_uTrim(f[5]); if(f[5]&&f[5]!=3D"") =
s+=3D"&utmtsp=3D"+_uES(f[5]);=0A=
   f[6]=3D_uTrim(f[6]); if(f[6]&&f[6]!=3D"") =
s+=3D"&utmtci=3D"+_uES(f[6]);=0A=
   f[7]=3D_uTrim(f[7]); if(f[7]&&f[7]!=3D"") =
s+=3D"&utmtrg=3D"+_uES(f[7]);=0A=
   f[8]=3D_uTrim(f[8]); if(f[8]&&f[8]!=3D"") =
s+=3D"&utmtco=3D"+_uES(f[8]);=0A=
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   s=3D"&utmt=3Ditem"+"&utmn=3D"+r;=0A=
   f[1]=3D_uTrim(f[1]); if(f[1]&&f[1]!=3D"") =
s+=3D"&utmtid=3D"+_uES(f[1]);=0A=
   f[2]=3D_uTrim(f[2]); if(f[2]&&f[2]!=3D"") =
s+=3D"&utmipc=3D"+_uES(f[2]);=0A=
   f[3]=3D_uTrim(f[3]); if(f[3]&&f[3]!=3D"") =
s+=3D"&utmipn=3D"+_uES(f[3]);=0A=
   f[4]=3D_uTrim(f[4]); if(f[4]&&f[4]!=3D"") =
s+=3D"&utmiva=3D"+_uES(f[4]);=0A=
   f[5]=3D_uTrim(f[5]); if(f[5]&&f[5]!=3D"") =
s+=3D"&utmipr=3D"+_uES(f[5]);=0A=
   f[6]=3D_uTrim(f[6]); if(f[6]&&f[6]!=3D"") =
s+=3D"&utmiqt=3D"+_uES(f[6]);=0A=
  }=0A=
  if ((_userv=3D=3D0 || _userv=3D=3D2) && _uSP()) {=0A=
   i[ii]=3Dnew Image(1,1);=0A=
   i[ii].src=3D_ugifpath+"?"+"utmwv=3D"+_uwv+s;=0A=
   i[ii].onload=3Dfunction() { _uVoid(); }=0A=
  }=0A=
  if ((_userv=3D=3D1 || _userv=3D=3D2) && _uSP()) {=0A=
   i2[ii]=3Dnew Image(1,1);=0A=
   =
i2[ii].src=3D_ugifpath2+"?"+"utmwv=3D"+_uwv+s+"&utmac=3D"+_uacct+"&utmcc=3D=
"+c;=0A=
   i2[ii].onload=3Dfunction() { _uVoid(); }=0A=
  }=0A=
 }=0A=
 return;=0A=
}=0A=
function _uFlash() {=0A=
 var f=3D"-",n=3Dnavigator;=0A=
 if (n.plugins && n.plugins.length) {=0A=
  for (var ii=3D0;ii<n.plugins.length;ii++) {=0A=
   if (n.plugins[ii].name.indexOf('Shockwave Flash')!=3D-1) {=0A=
    f=3Dn.plugins[ii].description.split('Shockwave Flash ')[1];=0A=
    break;=0A=
   }=0A=
  }=0A=
 } else if (window.ActiveXObject) {=0A=
  for (var ii=3D10;ii>=3D2;ii--) {=0A=
   try {=0A=
    var fl=3Deval("new =
ActiveXObject('ShockwaveFlash.ShockwaveFlash."+ii+"');");=0A=
    if (fl) { f=3Dii + '.0'; break; }=0A=
   }=0A=
   catch(e) {}=0A=
  }=0A=
 }=0A=
 return f;=0A=
}=0A=
function __utmLinker(l,h) {=0A=
 if (!_ulink) return;=0A=
 var p,k,a=3D"-",b=3D"-",c=3D"-",x=3D"-",z=3D"-",v=3D"-";=0A=
 var dc=3D_ubd.cookie;=0A=
 if (!l || l=3D=3D"") return;=0A=
 var iq =3D l.indexOf("?"); =0A=
 var ih =3D l.indexOf("#"); =0A=
 if (dc) {=0A=
  a=3D_uES(_uGC(dc,"__utma=3D"+_udh,";"));=0A=
  b=3D_uES(_uGC(dc,"__utmb=3D"+_udh,";"));=0A=
  c=3D_uES(_uGC(dc,"__utmc=3D"+_udh,";"));=0A=
  x=3D_uES(_uGC(dc,"__utmx=3D"+_udh,";"));=0A=
  z=3D_uES(_uGC(dc,"__utmz=3D"+_udh,";"));=0A=
  v=3D_uES(_uGC(dc,"__utmv=3D"+_udh,";"));=0A=
  k=3D(_uHash(a+b+c+x+z+v)*1)+(_udh*1);=0A=
  =
p=3D"__utma=3D"+a+"&__utmb=3D"+b+"&__utmc=3D"+c+"&__utmx=3D"+x+"&__utmz=3D=
"+z+"&__utmv=3D"+v+"&__utmk=3D"+k;=0A=
 }=0A=
 if (p) {=0A=
  if (h && ih>-1) return;=0A=
  if (h) { _udl.href=3Dl+"#"+p; }=0A=
  else {=0A=
   if (iq=3D=3D-1 && ih=3D=3D-1) _udl.href=3Dl+"?"+p;=0A=
   else if (ih=3D=3D-1) _udl.href=3Dl+"&"+p;=0A=
   else if (iq=3D=3D-1) =
_udl.href=3Dl.substring(0,ih-1)+"?"+p+l.substring(ih);=0A=
   else _udl.href=3Dl.substring(0,ih-1)+"&"+p+l.substring(ih);=0A=
  }=0A=
 } else { _udl.href=3Dl; }=0A=
}=0A=
function __utmLinkPost(f,h) {=0A=
 if (!_ulink) return;=0A=
 var p,k,a=3D"-",b=3D"-",c=3D"-",x=3D"-",z=3D"-",v=3D"-";=0A=
 var dc=3D_ubd.cookie;=0A=
 if (!f || !f.action) return;=0A=
 var iq =3D f.action.indexOf("?"); =0A=
 var ih =3D f.action.indexOf("#"); =0A=
 if (dc) {=0A=
  a=3D_uES(_uGC(dc,"__utma=3D"+_udh,";"));=0A=
  b=3D_uES(_uGC(dc,"__utmb=3D"+_udh,";"));=0A=
  c=3D_uES(_uGC(dc,"__utmc=3D"+_udh,";"));=0A=
  x=3D_uES(_uGC(dc,"__utmx=3D"+_udh,";"));=0A=
  z=3D_uES(_uGC(dc,"__utmz=3D"+_udh,";"));=0A=
  v=3D_uES(_uGC(dc,"__utmv=3D"+_udh,";"));=0A=
  k=3D(_uHash(a+b+c+x+z+v)*1)+(_udh*1);=0A=
  =
p=3D"__utma=3D"+a+"&__utmb=3D"+b+"&__utmc=3D"+c+"&__utmx=3D"+x+"&__utmz=3D=
"+z+"&__utmv=3D"+v+"&__utmk=3D"+k;=0A=
 }=0A=
 if (p) {=0A=
  if (h && ih>-1) return;=0A=
  if (h) { f.action+=3D"#"+p; }=0A=
  else {=0A=
   if (iq=3D=3D-1 && ih=3D=3D-1) f.action+=3D"?"+p;=0A=
   else if (ih=3D=3D-1) f.action+=3D"&"+p;=0A=
   else if (iq=3D=3D-1) =
f.action=3Df.action.substring(0,ih-1)+"?"+p+f.action.substring(ih);=0A=
   else =
f.action=3Df.action.substring(0,ih-1)+"&"+p+f.action.substring(ih);=0A=
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 }=0A=
 return;=0A=
}=0A=
function __utmSetVar(v) {=0A=
 if (!v || v=3D=3D"") return;=0A=
 if (!_udo || _udo =3D=3D "") {=0A=
  _udh=3D_uDomain();=0A=
  if (_udn && _udn!=3D"") { _udo=3D" domain=3D"+_udn+";"; }=0A=
 }=0A=
 if (!_uVG()) return;=0A=
 var r=3DMath.round(Math.random() * 2147483647);=0A=
 _ubd.cookie=3D"__utmv=3D"+_udh+"."+_uES(v)+"; path=3D"+_utcp+"; =
expires=3D"+_uNx()+";"+_udo;=0A=
 var s=3D"&utmt=3Dvar&utmn=3D"+r;=0A=
 if ((_userv=3D=3D0 || _userv=3D=3D2) && _uSP()) {=0A=
  var i=3Dnew Image(1,1);=0A=
  i.src=3D_ugifpath+"?"+"utmwv=3D"+_uwv+s;=0A=
  i.onload=3Dfunction() { _uVoid(); }=0A=
 }=0A=
 if ((_userv=3D=3D1 || _userv=3D=3D2) && _uSP()) {=0A=
  var i2=3Dnew Image(1,1);=0A=
  =
i2.src=3D_ugifpath2+"?"+"utmwv=3D"+_uwv+s+"&utmac=3D"+_uacct+"&utmcc=3D"+=
_uGCS();=0A=
  i2.onload=3Dfunction() { _uVoid(); }=0A=
 }=0A=
}=0A=
function _uGCS() {=0A=
 var t,c=3D"",dc=3D_ubd.cookie;=0A=
 if ((t=3D_uGC(dc,"__utma=3D"+_udh,";"))!=3D"-") =
c+=3D_uES("__utma=3D"+t+";+");=0A=
 if ((t=3D_uGC(dc,"__utmb=3D"+_udh,";"))!=3D"-") =
c+=3D_uES("__utmb=3D"+t+";+");=0A=
 if ((t=3D_uGC(dc,"__utmc=3D"+_udh,";"))!=3D"-") =
c+=3D_uES("__utmc=3D"+t+";+");=0A=
 if ((t=3D_uGC(dc,"__utmx=3D"+_udh,";"))!=3D"-") =
c+=3D_uES("__utmx=3D"+t+";+");=0A=
 if ((t=3D_uGC(dc,"__utmz=3D"+_udh,";"))!=3D"-") =
c+=3D_uES("__utmz=3D"+t+";+");=0A=
 if ((t=3D_uGC(dc,"__utmv=3D"+_udh,";"))!=3D"-") =
c+=3D_uES("__utmv=3D"+t+";");=0A=
 if (c.charAt(c.length-1)=3D=3D"+") c=3Dc.substring(0,c.length-1);=0A=
 return c;=0A=
}=0A=
function _uGC(l,n,s) {=0A=
 if (!l || l=3D=3D"" || !n || n=3D=3D"" || !s || s=3D=3D"") return "-";=0A=
 var i,i2,i3,c=3D"-";=0A=
 i=3Dl.indexOf(n);=0A=
 i3=3Dn.indexOf("=3D")+1;=0A=
 if (i > -1) {=0A=
  i2=3Dl.indexOf(s,i); if (i2 < 0) { i2=3Dl.length; }=0A=
  c=3Dl.substring((i+i3),i2);=0A=
 }=0A=
 return c;=0A=
}=0A=
function _uDomain() {=0A=
 if (!_udn || _udn=3D=3D"" || _udn=3D=3D"none") { _udn=3D""; return 1; }=0A=
 if (_udn=3D=3D"auto") {=0A=
  var d=3D_ubd.domain;=0A=
  if (d.substring(0,4)=3D=3D"www.") {=0A=
   d=3Dd.substring(4,d.length);=0A=
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  _udn=3Dd;=0A=
 }=0A=
 _udn =3D _udn.toLowerCase(); =0A=
 if (_uhash=3D=3D"off") return 1;=0A=
 return _uHash(_udn);=0A=
}=0A=
function _uHash(d) {=0A=
 if (!d || d=3D=3D"") return 1;=0A=
 var h=3D0,g=3D0;=0A=
 for (var i=3Dd.length-1;i>=3D0;i--) {=0A=
  var c=3DparseInt(d.charCodeAt(i));=0A=
  h=3D((h << 6) & 0xfffffff) + c + (c << 14);=0A=
  if ((g=3Dh & 0xfe00000)!=3D0) h=3D(h ^ (g >> 21));=0A=
 }=0A=
 return h;=0A=
}=0A=
function _uFixA(c,s,t) {=0A=
 if (!c || c=3D=3D"" || !s || s=3D=3D"" || !t || t=3D=3D"") return "-";=0A=
 var a=3D_uGC(c,"__utma=3D"+_udh,s);=0A=
 var lt=3D0,i=3D0;=0A=
 if ((i=3Da.lastIndexOf(".")) > 9) {=0A=
  _uns=3Da.substring(i+1,a.length);=0A=
  _uns=3D(_uns*1)+1;=0A=
  a=3Da.substring(0,i);=0A=
  if ((i=3Da.lastIndexOf(".")) > 7) {=0A=
   lt=3Da.substring(i+1,a.length);=0A=
   a=3Da.substring(0,i);=0A=
  }=0A=
  if ((i=3Da.lastIndexOf(".")) > 5) {=0A=
   a=3Da.substring(0,i);=0A=
  }=0A=
  a+=3D"."+lt+"."+t+"."+_uns;=0A=
 }=0A=
 return a;=0A=
}=0A=
function _uTrim(s) {=0A=
  if (!s || s=3D=3D"") return "";=0A=
  while ((s.charAt(0)=3D=3D' ') || (s.charAt(0)=3D=3D'\n') || =
(s.charAt(0,1)=3D=3D'\r')) s=3Ds.substring(1,s.length);=0A=
  while ((s.charAt(s.length-1)=3D=3D' ') || =
(s.charAt(s.length-1)=3D=3D'\n') || (s.charAt(s.length-1)=3D=3D'\r')) =
s=3Ds.substring(0,s.length-1);=0A=
  return s;=0A=
}=0A=
function _uEC(s) {=0A=
  var n=3D"";=0A=
  if (!s || s=3D=3D"") return "";=0A=
  for (var i=3D0;i<s.length;i++) {if (s.charAt(i)=3D=3D" ") n+=3D"+"; =
else n+=3Ds.charAt(i);}=0A=
  return n;=0A=
}=0A=
function __utmVisitorCode(f) {=0A=
 var r=3D0,t=3D0,i=3D0,i2=3D0,m=3D31;=0A=
 var a=3D_uGC(_ubd.cookie,"__utma=3D"+_udh,";");=0A=
 if ((i=3Da.indexOf(".",0))<0) return;=0A=
 if ((i2=3Da.indexOf(".",i+1))>0) r=3Da.substring(i+1,i2); else return =
"";  =0A=
 if ((i=3Da.indexOf(".",i2+1))>0) t=3Da.substring(i2+1,i); else return =
"";  =0A=
 if (f) {=0A=
  return r;=0A=
 } else {=0A=
  var c=3Dnew =
Array('A','B','C','D','E','F','G','H','J','K','L','M','N','P','R','S','T'=
,'U','V','W','X','Y','Z','1','2','3','4','5','6','7','8','9');=0A=
  return =
c[r>>28&m]+c[r>>23&m]+c[r>>18&m]+c[r>>13&m]+"-"+c[r>>8&m]+c[r>>3&m]+c[((r=
&7)<<2)+(t>>30&3)]+c[t>>25&m]+c[t>>20&m]+"-"+c[t>>15&m]+c[t>>10&m]+c[t>>5=
&m]+c[t&m];=0A=
 }=0A=
}=0A=
function _uIN(n) {=0A=
 if (!n) return false;=0A=
 for (var i=3D0;i<n.length;i++) {=0A=
  var c=3Dn.charAt(i);=0A=
  if ((c<"0" || c>"9") && (c!=3D".")) return false;=0A=
 }=0A=
 return true;=0A=
}=0A=
function _uES(s,u) {=0A=
 if (typeof(encodeURIComponent) =3D=3D 'function') {=0A=
  if (u) return encodeURI(s);=0A=
  else return encodeURIComponent(s);=0A=
 } else {=0A=
  return escape(s);=0A=
 }=0A=
}=0A=
function _uUES(s) {=0A=
 if (typeof(decodeURIComponent) =3D=3D 'function') {=0A=
  return decodeURIComponent(s);=0A=
 } else {=0A=
  return unescape(s);=0A=
 }=0A=
}=0A=
function _uVG() {=0A=
 if((_udn.indexOf("www.google.") =3D=3D 0 || _udn.indexOf(".google.") =
=3D=3D 0 || _udn.indexOf("google.") =3D=3D 0) && _utcp=3D=3D'/' && =
_udn.indexOf("google.org")=3D=3D-1) {=0A=
  return false;=0A=
 }=0A=
 return true;=0A=
}=0A=
function _uSP() {=0A=
 var s=3D100;=0A=
 if (_usample) s=3D_usample;=0A=
 if(s>=3D100 || s<=3D0) return true;=0A=
 return ((__utmVisitorCode(1)%10000)<(s*100));=0A=
}=0A=
function urchinPathCopy(p){=0A=
 var d=3Ddocument,nx,tx,sx,i,c,cs,t,h,o;=0A=
 cs=3Dnew Array("a","b","c","v","x","z");=0A=
 h=3D_uDomain(); if (_udn && _udn!=3D"") o=3D" domain=3D"+_udn+";";=0A=
 nx=3D_uNx()+";";=0A=
 tx=3Dnew Date(); tx.setTime(tx.getTime()+(_utimeout*1000));=0A=
 tx=3Dtx.toGMTString()+";";=0A=
 sx=3Dnew Date(); sx.setTime(sx.getTime()+(_ucto*1000));=0A=
 sx=3Dsx.toGMTString()+";";=0A=
 for (i=3D0;i<6;i++){=0A=
  t=3D" expires=3D";=0A=
  if (i=3D=3D1) t+=3Dtx; else if (i=3D=3D2) t=3D""; else if (i=3D=3D5) =
t+=3Dsx; else t+=3Dnx;=0A=
  c=3D_uGC(d.cookie,"__utm"+cs[i]+"=3D"+h,";");=0A=
  if (c!=3D"-") d.cookie=3D"__utm"+cs[i]+"=3D"+c+"; path=3D"+p+";"+t+o;=0A=
 }=0A=
}=0A=
function _uCO() {=0A=
 if (!_utk || _utk=3D=3D"" || _utk.length<10) return;=0A=
 var d=3D'www.google.com';=0A=
 if (_utk.charAt(0)=3D=3D'!') d=3D'analytics.corp.google.com';=0A=
 _ubd.cookie=3D"GASO=3D"+_utk+"; path=3D"+_utcp+";"+_udo;=0A=
 var sc=3Ddocument.createElement('script');=0A=
 sc.type=3D'text/javascript';=0A=
 sc.id=3D"_gasojs";=0A=
 =
sc.src=3D'https://'+d+'/analytics/reporting/overlay_js?gaso=3D'+_utk+'&'+=
Math.random();=0A=
 document.getElementsByTagName('head')[0].appendChild(sc);  =0A=
}=0A=
function _uGT() {=0A=
 var h=3Dlocation.hash, a;=0A=
 if (h && h!=3D"" && h.indexOf("#gaso=3D")=3D=3D0) {=0A=
  a=3D_uGC(h,"gaso=3D","&");=0A=
 } else {=0A=
  a=3D_uGC(_ubd.cookie,"GASO=3D",";");=0A=
 }=0A=
 return a;=0A=
}=0A=
var _utk=3D_uGT();=0A=
if (_utk && _utk!=3D"" && _utk.length>10) {=0A=
 if (window.addEventListener) {=0A=
  window.addEventListener('load', _uCO, false); =0A=
 } else if (window.attachEvent) { =0A=
  window.attachEvent('onload', _uCO);=0A=
 }=0A=
}=0A=
=0A=
function _uNx() {=0A=
  return (new Date((new Date()).getTime()+63072000000)).toGMTString();=0A=
}=0A=

------=_NextPart_000_0000_01C85868.EE2C41A0--

