ac 220

Quizartinib (AC220) 是一种第二代 Ⅱ 型 FLT3 酪氨酸激酶抑制剂，具有口服活性和高选择性，抑制 FLT3-WT 和 FLT3-ITD 自磷酸化 (IC50=4.1/1.1 nM)。Quizartinib 可以诱导肿瘤细胞凋亡。

Quizartinib, also know as AC220 and AC010220, is an orally available FLT3 / STK1 inhibitor with potential antineoplastic activity. Class III receptor tyrosine kinase inhibitor AC220 selectively inhibits class III receptor tyrosine kinases, including FMS-related tyrosine kinase 3 (FLT3/STK1), colony-stimulating factor 1 receptor (CSF1R/FMS), stem cell factor receptor (SCFR/KIT), and platelet derived growth factor receptors (PDGFRs), resulting in inhibition of ligand-independent leukemic cell proliferation and apoptosis. Mutations in FLT3, resulting in constitutive activation, are the most frequent genetic alterations in acute myeloid leukemia (AML) and occur in approximately one-third of AML cases.