XL228

XL228 is a protein kinase inhibitor targeting IGF1R, the AURORA kinases, FGFR1-3, ABL and SRC family kinases. XL228 is an Aurora A inhibitor (IC50, f3 nmol/L) that has shown potent biochemical activity against ABL1 (Ki, 5 nmol/L), as well as the BCR-ABL1 T315I (Ki, 1.4 nmol/L) kinases. IGF1R is commonly activated in neoplastic growth and contributes to cell proliferation, cell survival, and resistance to genotoxic agents. SRC is a mediator of cell migration and invasion, key aspects of the metastatic phenotype. FGFR1-3 play important roles in tumor growth and angiogenesis. Aurora kinases control crucial steps in mitotic progression and cytokinesis.