cdk7/cyclin h/mat1

Lerociclib (G1T38) is a selective and highly potent CDK4 6 inhibitor with anticancer and antitumor activity, inhibits CDK4 CyclinD1 and CDK6 CyclinD3, and inhibits tumor growth in an animal model of endocrine-resistant breast cancer. Due to the poor solubility, for animal studies, the salt form T11345L is recommended.

YKL-5-124, a potent, selective and covalent CDK7 inhibitor with an IC50 of 9.7 nM, 1300 nM and 3020 nM for CDK7 Mat1 CycH, CDK2 and CDK9 respectively, displays biochemical and cellular selectivity for CDK7 over CDK12 13.

Lerociclib dihydrochloride (G1T38 dihydrochloride) is a potent and selective CDK4 CDK6 inhibitor, with IC50 values of 2 nM for CDK6 CyclinD3 and 1 nM for CDK4 CyclinD1.

Roniciclib (BAY 1000394) is a potent pan-CDK inhibitor and a novel oral cytotoxic agent. Roniciclib inhibits the activity of cell-cycle CDKs CDK1, CDK2, CDK3, CDK4, and of transcriptional CDKs CDK7 and CDK9 with IC(50) values in the range between 5 and 25 nmol L.

Ibulocydine is a potent CDK inhibitor. Ibulocydine has high activity against Cdk7 cyclin H Mat1 and Cdk9 cyclin T. Ibulocydine inhibited the growth of HCC cells more effectively than other Cdk inhibitors, including olomoucine and roscovitine, whereas ibulocydine as well as the other Cdk inhibitors and BMK-Y101 minimally influenced the growth of normal hepatocyte cells. Ibulocydine induced apoptosis in HCC cells, most likely by inhibiting Cdk7 and Cdk9. In vitro treatment of HCC cells with ibulocydine rapidly blocked phosphorylation of the carboxyl-terminal domain (CTD) of the large subunit of RNA polymerase II, a process mediated by Cdk7 9. Anti-apoptotic gene products such as Mcl-1, survivin, and X-linked IAP (XIAP) are crucial for the survival of many cell types, including HCC. Following the inhibition of RNA polymerase II phosphorylation, ibulocydine caused rapid down-regulation of Mcl-1, survivin, and XIAP, thus inducing apoptosis. Furthermore, ibulocydine effectively ind......