cdk9- cyclin t1

Riviciclib is a potent inhibitor of cyclin-dependent kinase (CDK)(CDK9-cyclinT1, CDK4-cyclin D1, and CDK1-cyclinB with IC50s of 20 nM, 63 nM, and 79 nM, respectively),with antitumor activity on cisplatin-resistant cells.

CDK9-IN-7 is a highly selective and orally active CDK9/cyclin T inhibitor (IC50: 11 nM), which exhibits more potent over other CDKs (CDK4/cyclinD: 148 nM; CDK6/cyclinD: 145 nM).

CAN508 is a potent ATP-competitive CDK9/cyclin T1 inhibitor with an IC50 of 0.35 μM. It also competitively inhibits Cdk2-cyclin E with respect to ATP, with Ki and IC50 values of 13.3 μM and 20 μM, respectively. CAN508 exhibits a 38-fold selectivity for CDK9/cyclin T over other CDK/cyclin complexes. [Antitumor activity.]

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.

ABC1183 is a novel diaminothiazole that inhibits GSK3α, GSK3β and CDK9. ABC1183 inhibits the growth of a numerous cancer cell lines by decreasing cell survival by inducing G2/M arrest and through altering GSK3, glycogen synthetase, β-catenin phosphorylation and MCL1 expression,and is orally active.

RGB-286638 free base is a novel CDK inhibitor with IC50s of 1 nM/2 nM/3 nM/4 nM/5 nM for cyclin T1-CDK9/cyclin B1-CDK1/cyclin E-CDK2/cyclin D1-CDK4/cyclin E-CDK3/p35-CDK5 respectively; less potent against cyclin H-CDK7 and cyclin D3-CDK6.

TL12-186 is a Cereblon-dependent kinase degrader that degrades CDK, BTK, FLT3, Aurora and other kinases.TL12-186 inhibits CDK2/cyclin A and CDK9/cyclin T1 with IC50s of 73 and 55 nM, respectively.

MC180295 ((rel)-MC180295) is a novel, potent, and highly selective CDK9 inhibitor with an IC50 of 5 nM, demonstrating over 22-fold selectivity compared to other CDKs.

Riviciclib hydrochloride (P276-00) is a novel inhibitor of CDK1, CDK4, and CDK9, with IC50 values of 79 nM, 63 nM, and 20 nM, respectively, currently in Phase 2/3.

FIT-039 is a selective and ATP-competitive, orally active inhibitor of CDK9( IC50 : 5.8 μM;CDK9/cyclin T1). FIT-039 inhibits replication of HSV-1 (IC50 of 0.69 μM), HSV-2, human adenovirus, and human CMV. FIT-039 is a promising antiviral agent for inhibiting drug-resistant HSVs and other DNA viruses.

KB-0742 dihydrochloride is a potent, selective, and orally administered inhibitor of CDK9.

CDK12-IN-E9 is a cell cycle protein kinase (CDK) inhibitor with anticancer and antitumor activity that can be used in the study of breast cancer.

Toyocamycin (Vengicide) is an adenosine analog produced by Actinomycetes, functioning as an XBP1 inhibitor and inhibiting IRE1α-induced ATP-dependent XBP1 mRNA cleavage (IC50: 80 nM), and induces apoptosis.

Abemaciclib (LY2835219) is a dual inhibitor of CDK4/6 (IC50=2/10 nM) with selectivity and specificity. Abemaciclib has antitumor activity and is used to treat advanced or metastatic breast cancer.

NVP-LCQ195 (LCQ-195) (AT9311) is a potent inhibitor of CDK1, CDK2, CDK3 and CDK5 (IC50: 1-42 nM).

Abemaciclib methanesulfonate (LY2835219) is a specific and effective inhibitor of CDK4(IC50=2 nM) and CDK6(IC50=10 nM).

Bohemine is a cyclin-dependent kinase inhibitor.

CDK12-IN-4, a pyrazolotriazine compound, exhibits potent inhibition of CDK12 by achieving an IC50 value of 0.641 μM, utilizing high ATP levels (2 mM). Notably, CDK12-IN-4 does not impact CDK2/Cyclin E (IC50 > 20 μM) or CDK9/Cyclin T1 (IC50 > 20 μM) under the influence of high ATP (2 mM) levels (WO2021116178A1).

CDK12-IN-6, a pyrazolotriazine compound, is a powerful inhibitor of CDK12. Its inhibitory activity is significant with an IC50 value of 1.19 μM when tested at high ATP concentration (2 mM). Notably, CDK12-IN-6 does not exhibit any inhibitory effect on CDK2/Cyclin E (IC50 >20 μM) and CDK9/Cyclin T1 (IC50 >20 μM) when tested under the same high ATP conditions (2 mM) (WO2021116178A1).

RGB-286638 is a multi-target CDK inhibitor that effectively hampers the kinase activity of a range of cyclin-CDK complexes, including cyclin T1-CDK9 (IC50 = 1 nM), cyclin B1-CDK1 (IC50 = 2 nM), cyclin E-CDK2 (IC50 = 3 nM), cyclin D1-CDK4 (IC50 = 4 nM), cyclin E-CDK3 (IC50 = 5 nM), and p35-CDK5 (IC50 = 5 nM). Additionally, it inhibits other kinases such as GSK-3β (IC50 = 3 nM), TAK1 (IC50 = 5 nM), Jak2 (IC50 = 50 nM), and MEK1 (IC50 = 54 nM), showcasing its versatile inhibitory potential.

CDK9-Cyclin T1 PPI-IN-1 (Compound B19) is a selective inhibitor of the CDK9-Cyclin T1 protein-protein interaction (PPI), suppressing cell proliferation in TNBC MDA-MB-231 cells with an IC50 of 0.044 μM and inducing apoptosis. This compound diminishes CDK9 transcriptional activity and downregulates phosphorylation of RNA Pol II CTD ser2. In vivo, CDK9-Cyclin T1 PPI-IN-1 effectively impedes tumor growth in a TNBC 4T1 mouse model [1].

Voruciclib is an orally active and selective CDK inhibitor (Ki: 0.626 nM-9.1 nM) that represses the expression of MCL-1 in multiple models of diffuse large B-cell lymphoma and effectively blocks CDK9, the transcriptional regulator of MCL-1.

(R)-Atuveciclib is an isomer of Atuveciclib. Atuveciclib (BAY 1143572) is a potent and highly selective PTEFb/CDK9 inhibitor with an IC50 value of 13 nm for CDK9/CycT1 and a selectivity ratio of 100 for CDK2, with highly bioavailable and orally available advantages.

Atuveciclib S-Enantiomer (BAY-1143572 S-Enantiomer) is a potent and selective CDK9 inhibitor, inhibiting CDK9/CycT1 with an IC50 of 16 nM.