Catalog Number: SY-JNJ7706621
Availability: In Stock
Size: 1 mg, 5 mg, 10 mg, 50 mg, 100 mg
CAS Number : 443797-96-4
Alternative Names: JNJ7706621, JNJ-7706621

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A Dual Inhibitor of Cyclin-Dependent Kinases and Aurora Kinases. In vitro kinase IC50:CDK1/Cyclin B(0.009 umol/L), Aurora-A(0.011 umol/L)

A cell-permeable triazolylsulfonamido compound that acts a reversible, ATP-competitive kinase inhibitor with selectivities towards Aurora kinases (IC50 = 11 and 15 nM for Aurora-A, Aurora-B, respectively) and Cdk's (IC50 = 9, 4, and 3 nM for Cdk1/B, Cdk2/A, and Cdk2/E, respectively). Displays antitumor properties both in vitro (IC50 in the range of 112 - 514 nM against various human cancer cell lines) and in a xenograft murine model in vivo (75-100 mg/kg, i.p.).Biological Activity of JNJ-7706621:

JNJ-7706621 is a novel cell cycle inhibitor that showed potent inhibition of several cyclin-dependent kinases (CDK) and Aurora kinases and selectively blocked proliferation of tumor cells of various origins but was about 10-fold less effective at inhibiting normal human cell growth in vitro. In human cancer cells, treatment with JNJ-7706621 inhibited cell growth independent of p53, retinoblastoma, or P-glycoprotein status; activated apoptosis; and reduced colony formation. At low concentrations, JNJ-7706621 slowed the growth of cells and at higher concentrations induced cytotoxicity. Inhibition of CDK1 kinase activity, altered CDK1 phosphorylation status, and interference with downstream substrates such as retinoblastoma were also shown in human tumor cells following drug treatment. Flow cytometric analysis of DNA content showed that JNJ-7706621 delayed progression through G1 and arrested the cell cycle at the G2-M phase. Additional cellular effects due to inhibition of Aurora kinases included endoreduplication and inhibition of histone H3 phosphorylation. JNJ-7706621 is a unique inhibitor regulating cell cycle progression at multiple points, suggesting that it could be useful for cell cycle analysis and therapy of various cancers, including Ewing's sarcoma.

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