The in vitro antitumor activities of 2,6-di-[2-(heteroaryl)vinyl]pyridines versus the standard National Cancer Institute 60 cell lines panel and of 2,6-di-[2-(heteroaryl)vinyl] pyridinium cations versus MCF7 (human mammary carcinoma) and LNCap (prostate carcinoma) cell lines are reported. Antiproliferative effects in both series are particularly evident for MCF7 mammary adenocarcinoma cells. Multivariate analysis of DNA microarray data for responsive tumor cell lines suggest a mechanistic pathway involving polyamine biosynthesis and prolactin signal transduction.
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