Abstract
A series of 3-(((9H-purin-6-yl) amino) methyl) pyridin-2(1H)-one derivatives were designed, synthesized and confirmed as tubulin polymerization inhibitors. All compounds were evaluated for their anti-proliferative activities on three colorectal carcinoma (CRC) cell lines. Among these compounds, SKLB0565 displayed noteworthy potency against eight CRC cell lines with IC50 values ranging from 0.012μM and 0.081μM. Besides, SKLB0565 inhibited tubulin polymerization, caused G2/M phase cell cycle arrest, depolarized mitochondria and induced cell apoptosis in CRC cells. Furthermore, SKLB0565 suppressed cell migration and disrupted the capillary tube formation of human umbilical vein endothelial cells (HUVECs). Our data clarified that SKLB0565 is a promising anti-tubulin agent for CRC therapy which is worthy of further evaluation.
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