Selective inhibitor of TGF-β signaling (IC50 = 0.85 μM); displays little or no inhibition of activin, Wnt or BMP signaling pathways
Induces proteasomal degradation of the TGF-β type II receptor
Inhibits TGF-β-induced mesoderm formation from mouse embryonic stem cells (ESCs) during early differentiation; selectively promotes the differentiation of ESCs to cardiomyocytes in vitro between days 3-5
Does not induce differentiation of vascular smooth muscle cells or endothelial cells.