Abstract:
BACKGROUND:SLC/CCL21, normally expressed in high endothelial venules and in T cell zones of spleen and lymph nodes, strongly attracts T cells and dendritic cells (DC). We have previously shown that SLC/CCL21-mediated anti-tumor responses are accompanied by significant induction of IFNgamma and the CXC chemokines, monokine induced by IFNgamma (MIG/CXCL9) and IFNgamma-inducible protein-10 (IP-10/CXCL10). RESULTS:We assessed the importance of IFNgamma, IP-10/CXCL10 and MIG/CXCL9 in SLC/CCL21 therapy. In vivo depletion of IP-10/CXCL10, MIG/CXCL9 or IFNgamma significantly reduced the anti-tumor efficacy of SLC/CCL21. Assessment of cytokine production at the tumor site showed an interdependence of IFNgamma, MIG/CXCL9 and IP-10/CXCL10; neutralization of any one of these cytokines caused a concomitant decrease in all three cytokines. Similarly, neutralization of any one of these cytokines led to a decrease in the frequency of CXCR3+ve T cells and CD11c+ve DC at the tumor site. CONCLUSION:These findings indicate that the full potency of SLC/CCL21-mediated anti-tumor responses require in part the induction of IFNgamma, MIG/CXCL9 and IP-10/CXCL10.
journal_name
Mol Cancerjournal_title
Molecular cancerauthors
Sharma S,Yang SC,Hillinger S,Zhu LX,Huang M,Batra RK,Lin JF,Burdick MD,Strieter RM,Dubinett SMdoi
10.1186/1476-4598-2-22keywords:
subject
Has Abstractpub_date
2003-04-15 00:00:00pages
22issn
1476-4598journal_volume
2pub_type
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