| 生化机理 |
Bafetinib (1-10 μM) concentration dependently inhibits PAR2-TRPV4 coupling. In TRPV4 HEKs, 10 μM Bafetinib significantly inhibits the coupling response to SLIGRL and trypsin compared with vehicle control. Bafetinib inhibits the signalling pathway leading to TRPV4 channel opening, downstream of PAR2 activation, most likely by blocking the activation of a tyrosine kinase. Bafetinib blocks WT Bcr-Abl autophosphorylation and its downstream kinase activity with IC50 of 11 nM and 22 nM in K562 and 293T cells, respectively. Bafetinib suppresses the growth of the Bcr-Abl-positive cell lines including K562, KU812, and BaF3/wt cells potently without effects on the proliferation of the Bcr-Abl-negative U937 cell line. Moreover, Bafetinib exhibits a dose-dependent antiproliferative effect against Bcr-Abl point mutant cell lines, such as BaF3/E255K cells |
