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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

VPAC1 receptors and lung cancer.

VIP/PACAP are autocrine growth factors for lung cancer. VIP and/or PACAP mRNA is present in most lung cancer cell lines examined. Although mRNA for VPAC2-R is not common, VPAC1-R and PAC1-R mRNA is present in many lung cancer cell lines. 125I-VIP binds with high affinity to lung cancer cells and specific 125I-VIP binding is inhibited with high affinity by (Lys15, Arg16, Leu27)VIP1-7 GRF8-27, the VPAC1-R specific agonist, but not by Ro25-1553(18), the VPAC2-R specific agonist. VIP elevates cAMP and increases c-fos gene expression. The increase in cAMP and c-fos mRNA caused by VIP is inhibited by SN(VH). (SH)VH inhibited the proliferation of NCIH1299 cells in the MTT assay, which is based on cytotoxicity. In a recent cell line screen, (SN)VH inhibited the growth of 51 of 56 cancer cell lines including leukemia, lung cancer, colon cancer, CNS cancer, melanoma, ovarian cancer, renal cancer, breast cancer, and prostate cancer (T. Moody, unpublished). It remains to be determined if (SN)VH will be useful for treatment of a wide variety of cancers.[1]


  1. VPAC1 receptors and lung cancer. Moody, T.W., Walters, J., Casibang, M., Zia, F., Gozes, Y. Ann. N. Y. Acad. Sci. (2000) [Pubmed]
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