Product Overview
SB1317 is a potent inhibitor of Cyclin dependent kinases (CDKs), FMS-like tyrosine kinase-3 (FLT3) and Janus kinase 2 (JAK2) with IC50 values of 13nM, 56nM and 73nM for CDK2, JAK2 and FLT3, respectively. CDKs are serine-threonine kinases that regulating the cell cycle. JAK2 is a nonreciprocal intracellular tyrosine kinase that transduces cytokine-mediated signals via the JAK-STAT pathway. FLT3 is a cytokine receptor and plays an important role in the normal development of haematopoietic stem cells. In luciferase-expressing MM1S cells, SB1317 overcame the proliferative/protective advantage conferred by IL-6.In MM1S cells, SB1317 increased the percentage of cells in G2/M phases and decreased cells in the S phase. Also, SB1317 increased the amount of cells in the subG0 region. In CB17-SCID mice bearing human multiple myeloma plasmacytoma xenograft models (the bortezomib-sensitive MM1S model and the more bortezomib-resistant OPM2 model), SB1317 significantly inhibited tumor growth. In a subcutaneous AML model, treatment mice with SB1317 dosed 10, 20 or 40 mg/kg daily for 21 days reduced the average tumor volume by 53%, 61% and 113%, respectively.
Download Datasheet