Inhibition of BMP6-induced ALK2 transcriptional activity in mouse C2C12 cells expressing BRE-Luc after 30 mins by luciferase reporter gene assay, EC50 = 0.014 μM.
LDN193189有效抑制BMP4介導(dǎo)的Smad1,Smad5和Smad8活化, IC 50為5 nM,并有效地抑制BMP的I型受體ALK2和ALK3的轉(zhuǎn)錄活性,IC 50分別為5 nM和30 nM。此外,LDN193189還抑制組成型活性ALK2R206H or ALK2Q207D突變蛋白誘導(dǎo)的轉(zhuǎn)錄活性。[1]