PF-04217903 phenolsulfonate is an orally active, highly selective ATP-competitive
c-Met kinase inhibitor with a
Ki value of 4.8 nM and a
Kd value of 4.5 nM. PF-04217903 phenolsulfonate blocks
c-Met and
HGF signaling pathways, inhibits
MET phosphorylation, and blocks downstream
MAPK,
PI3K/AKT and
PLCγ1 pathways. PF-04217903 phenolsulfonate suppresses tumor proliferation, survival, migration, invasion, angiogenesis and metastasis, induces
apoptosis, and enhances efferocytosis,
Annexin A1 expression and resolution of inflammation. PF-04217903 phenolsulfonate retains activity against several
c-Met mutants (M1131T, V1220I, H1094R). PF-04217903 phenolsulfonate increases the incidence of subarachnoid hemorrhage and reduces survival rate without altering aneurysm formation, and also prevents lymph node metastasis induced by
VEGF inhibition. PF-04217903 phenolsulfonate is applicable to research related to tumors (pancreas, stomach, lung, brain, colon, breast, kidney, melanoma, etc.), intracranial aneurysms and inflammatory diseases (gouty arthritis, neutrophilic pleuritis).