PF-2341066

PF-2341066 (Crizotinib) is a potent, orally bioavailable, ATP-competitive small-molecule inhibitor of c-Met kinase and ALK (anaplastic lymphoma kinase) with IC50 values to be 4 and 25 nM for C-Met and ALK resepectively.PF-2341066 (Crizotinib) potently inhibited cell proliferation, which was associated with G1-S–phase cell cycle arrest and induction of apoptosis in ALK-positive ALCL cells (IC50 values=30 nM) but not ALK-negative lymphoma cells. The induction of apoptosis was confirmed using terminal deoxyribonucleotide transferase–mediated nick-end labeling and Annexin V staining (IC50 values=25–50 nM).