BRD0705 (BRD-0705) is a potent, paralog-selective GSK3α inhibitor with IC50 of 66 nM, 8-fold selectivity over GSK3β (IC50=515 nM).
BRD0705 displays excellent selectivity in a penal of 311 kinases, the CDK family of CDK2, CDK3 and CDK5) are most potently inhibited with IC50 of 6.87, 9.74 and 9.20 uM (87-, 123-, and 116-fold selectivity relative to GSK3α).
BRD0705 inhibits GSK3α kinase function, impairs GSK3α Tyr279 phosphorylation in a time- and concentration-dependent manner without affecting GSK3β Tyr216 phosphorylation, and does not stabilize β-catenin, induces myeloid differentiation and impairs colony formation in AML cells, with no apparent effect on normal hematopoietic cells.
BRD0705 impairs leukemia initiation and prolongs survival in AML mouse models.
