First Author | Singh S | Year | 2009 |
Journal | Cancer Res | Volume | 69 |
Issue | 2 | Pages | 411-5 |
PubMed ID | 19147552 | Mgi Jnum | J:143714 |
Mgi Id | MGI:3828863 | Doi | 10.1158/0008-5472.CAN-08-3378 |
Citation | Singh S, et al. (2009) Host CXCR2-dependent regulation of melanoma growth, angiogenesis, and experimental lung metastasis. Cancer Res 69(2):411-5 |
abstractText | Crucial steps in tumor growth and metastasis are proliferation, survival, and neovascularization. Previously, we have shown that receptors for CXCL-8, CXCR1, and CXCR2 are expressed on endothelial cells and CXCR2 has been shown to be a putative receptor for angiogenic chemokines. In this report, we examined whether tumor angiogenesis and growth of CXCL-8-expressing human melanoma cells are regulated in vivo by a host CXCR2-dependent mechanism. We generated mCXCR2(-/-), mCXCR2(+/-), and wild-type nude mice following crosses between BALB/c mice heterozygous for nude(+/-) and heterozygous for mCXCR2(+/-). We observed a significant inhibition of human melanoma tumor growth and experimental lung metastasis in mCXCR2(-/-) mice as compared with wild-type nude mice. Inhibition in tumor growth and metastasis was associated with a decrease in melanoma cell proliferation, survival, inflammatory response, and angiogenesis. Together, these studies show the importance of host CXCR2-dependent CXCL-8-mediated angiogenesis in the regulation of melanoma growth and metastasis. |