WQ-C-401

WQ-C-401 is an orally active platelet-derived growth factor receptor (PDGFR) inhibitor. WQ-C-401 inhibits cell proliferation by blocking PDGFR autophosphorylation in a concentration-dependent manner, with EC50 values of 3.5 nM for PDGFRα Y849 and 5.8 nM for PDGFRβ Y1021. Additionally, WQ-C-401 can inhibit PASMCs proliferation and migration by blocking PDGF-BB-induced ERK1/2 phosphorylation, reducing collagen I synthesis, and increasing α-SMA expression, thereby preventing pulmonary vascular remodeling. WQ-C-401 holds promise for research in the field of pulmonary arterial hypertension[1].