Background:

JNJ-7706621 is a dual inhibitor of cyclin-dependent kinases (CDK) and Aurora kinases that potently inhibits CDK1, CDK2, CDK3, CDK4, CDK6, Aurora-A, and Aurora-B in vitro with 50% inhibition concentration IC₅₀values of 0.009, 0.004, 0.003, 0.058, 0.253, 0.175, 0.011 and 0.015 μmol/L respectively. JNJ-7706621 selectively inhibits proliferation of both normal human cells and tumor cells of various origins, where the efficacy of JNJ-7706621 is 10-fold greater in tumor cells (IC₅₀range of 0.112 to 0.514 μmol/L) than normal cells (IC₅₀range of 3.67 to 5.42 μmol/L). JNJ-7706621 has been found to induce apoptosis, suppress colony formation and inhibit cell growth regardless of p53, retinoblastoma or P-glycoprotein status in human cancer cells.

Reference

[1].Stuart Emanuel, Catherine A. Rugg, Robert H. Gruninger, Ronghui Lin, Angel Fuentes-Pesquera, Peter J. Connolly, Steven K. Wetter, Beth Hollister, Walter W. Kruger, Cheryl Napier, Linda Jolliffe, and Steven A. Middleton. The In vitro and In vivo Effects of JNJ-7706621: A Dual Inhibitor of Cyclin-Dependent Kinases and Aurora Kinases. Cancer Res 2005;65:9038-9046