In vitro study | Takinib is an inhibitor of both auto-phosphorylated and non-phosphorylated TAK1 and binds to the ATP binding pocket of TAK1 to slow down the rate-limiting step in the activation of tak1. Takinib has significant inhibitory activity against six threonine/serine kinases, including TAK1, IRAK4, IRAK1, GCK, CLK2 and MINK1 at a concentration of 10 μm, TAK1/MAP3K7 was the most efficiently inhibited kinase with an IC50 of 9.5 nM. Treatment with Takinib induces TNF-α dependent apoptosis in RA cell models and metastatic breast cancer. Takinib does not inhibit MAP2Ks or MAP3Ks family members such as MKK6/MAP2K6, MEKK1/ MAP3K1, MKK1/MAP2K1. Takinib also had no inhibitory effect on MAP3K5/ASK1. |