p110δ 选择性抑制剂;p110δ Selective Inhibitors;;InformationME-401 (PWT-143, P110δ-IN-1) is an oral, potent and selective inhibitor ofPhosphatidylinositol 3-Kinase (PI3K) P110δwith IC50 of 0.6 nM in cellular assay.TargetsP110δ (Cell-free assay) 0.6 nMIn vivoME-401 is an oral, once-daily, selective PI3Kδ inhibitor with an optimized pharmacologic profile that is in clinical development for the treatment of B-cell malignancies. ME-401 can be orally absorbed, distribute to target tissues, enter and accumulate in target cells, and bind to the target with high affinity to exert its mechanism of action.