LY2109761是一种新型的，选择性的TGF-β receptor type I/II (TβRI/II)双重抑制剂，Ki分别为38 nM和300 nM，对Smad2的磷酸化产生负面影响。A small molecule inhibitor of the TGF-β receptor type 1/type II kinases. LY2109761 is a novel selective TGF-β receptor type I/II (TβRI/II) dual inhibitor with Ki of 38 nM and 300 nM, respectively; shown to negatively affect the phosphorylation of Smad2. A small molecule inhibitor of the TGF-β receptor type 1/type II kinases.