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Biological Activity:
Potent inhibitor of TGF-β type I receptor superfamily activin-like kinase ALK5 and its relatives ALK4 and ALK7 (IC50 to be 12, 45 and 7.5 nM respectively). A-83-01 inhibits smad signaling and epithelial-to-mesenchymal transition by transforming growth factor-β, but had no effect on BMP signaling; Used to generate rat and human iPS cells towards a mouse ES cell like self-renewal state.
References:
M Tojo et al. The ALK5 inhibitor A-83-01 inhibits smad signaling and epithelial-to-mesenchymal transition by transforming growth factor-β. Cancer. Sci. 2005, 96, 791-800. [online]
W Li ... and S Ding et al. Generation of rat and human induced pluripotent stem cells by combining genetic reprogramming and chemical inhibitors. Cell Stem Cell 2009, 4, 16-19. [online]
Chemical Name: 3-(6-Methylpyridin-2-yl)-N-phenyl-4-(quinolin-4-yl)-1H-pyrazole-1-carbothioamide
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