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CDK inhibitors block cyclin-dependent kinases (CDKs), the serine/threonine kinases that drive the cell cycle. Each CDK becomes active only when bound to a cyclin partner, and successive cyclin-CDK complexes order DNA replication and mitosis. CDK4 and CDK6 pair with D-type cyclins to control progression through G1, while CDK1 governs entry into mitosis. Palbociclib and abemaciclib are selective CDK4/6 inhibitors used to study G1 arrest and retinoblastoma protein phosphorylation. Dinaciclib and seliciclib act on several family members, including CDK2, CDK5 and CDK9, which also links them to transcription research. Ro 3306 inhibits CDK1 and is used to hold cells reversibly at the G2/M boundary for synchronization experiments.
R547 mesylate is a potent and selective ATP-competitive inhibitor of cyclin-dependent kinases (CDKs). It exhibits inhibitory constants of 2 nM for CDK1/cyclin B, 3 nM for CDK2/cyclin E, and 1 nM for CDK4/cyclin D1. Due to its oral bioavailability and high specificity, R547 mesylate is valuable for investigating cell cycle regulation and the role of CDKs in cancer research.
Synonyms: (E/Z)-TG02 hydrochloride; (E/Z)-SB1317 hydrochloride
(E/Z)-Zotiraciclib hydrochloride is a potent inhibitor of CDK2, JAK2, and FLT3, exhibiting IC50 values of 13 nM, 73 nM, and 56 nM, respectively. This orally active compound demonstrates significant efficacy in inhibiting the proliferation of various cancer cell lines. It is a valuable tool for research into therapeutic strategies targeting cell cycle regulation and signal transduction pathways in cancer.
RGB-286638 free base is a potent CDK inhibitor targeting cyclin T1-CDK9, cyclin B1-CDK1, cyclin E-CDK2, cyclin D1-CDK4, cyclin E-CDK3, and p35-CDK5, with IC50 values of 1, 2, 3, 4, 5, and 5 nM, respectively. Additionally, it inhibits GSK-3β, TAK1, Jak2, and MEK1, exhibiting IC50 values of 3, 5, 50, and 54 nM. This compound is valuable for research in cell cycle regulation, cancer therapeutics, and signaling pathways involving kinase activity.
Synonyms: (E/Z)-TG02 citrate; (E/Z)-SB1317 citrate
(E/Z)-Zotiraciclib citrate is a potent inhibitor targeting CDK2, JAK2, and FLT3 kinases. This compound demonstrates significant biological activity in disrupting cell cycle progression and signaling pathways associated with cell proliferation and survival. It is utilized in cancer research applications, particularly for studies involving hematological malignancies and solid tumors where these kinases are dysregulated.
Zotiraciclib hydrochloride is a novel small molecule inhibitor targeting cyclin-dependent kinase 2 (CDK2), Janus kinase 2 (JAK2), and Fms-like tyrosine kinase 3 (FLT3). This reagent demonstrates anti-tumor activity by downregulating the Myc oncogene through CDK9 inhibition, contributing to reduced tumor growth. Zotiraciclib hydrochloride is particularly relevant for research into cancers capable of crossing the blood-brain barrier, and elevated levels of the MCL-1 protein may indicate its potential as a prognostic marker and therapeutic target in cancer studies.
3-Methylthienyl-carbonyl-JNJ-7706621 is a selective cyclin-dependent kinase (CDK) inhibitor, demonstrating potent activity with IC50 values of 6.4 nM for CDK1/cyclin B and 2 nM for CDK2/cyclin A. Additionally, it exhibits strong inhibition of GSK-3 (IC50=0.041 μM) and moderate inhibition against CDK4, VEGF-R2, and FGF-R2 with IC50s of 0.11, 0.13, and 0.22 μM, respectively. This compound is primarily utilized in cancer research to explore CDK-related pathways and therapeutic strategies.
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CDDD11-8 is a potent and selective inhibitor of cyclin-dependent kinase 9 (CDK9) and FLT3-ITD, exhibiting Ki values of 8 nM and 13 nM, respectively. This compound effectively reduces the proliferation of leukemia cell lines, particularly those associated with the FLT3-ITD mutation. CDDD11-8 serves as a valuable tool for research into targeted therapies for hematological malignancies, specifically in the study of cell cycle regulation and tyrosine kinase signaling pathways.
AMG 925 (HCl) is a potent dual inhibitor targeting FLT3 and CDK5, demonstrating IC50 values of 2±1 nM and 3±1 nM, respectively. This compound exhibits selectivity for these kinases, making it a valuable tool for research into hematological malignancies and cancer progression. Its oral bioavailability further enhances its utility in preclinical studies investigating therapeutic interventions for FLT3-driven malignancies and CDK5-associated diseases.
FLT3/CDK4-IN-1 is a highly selective, orally active dual inhibitor targeting FLT3 and CDK4, demonstrating IC50 values of 11 nM and 7 nM, respectively. This compound exhibits significant antiproliferative activity against specific cancer cell lines and shows promising antitumor effects in vivo. FLT3/CDK4-IN-1 is suitable for research applications focused on cancer biology, particularly in exploring pathways associated with leukemias and solid tumors.
SHP2/CDK4-IN-1 is a potent dual inhibitor of SHP2 and CDK4, exhibiting IC50 values of 4.3 nM and 18.2 nM, respectively. This compound effectively induces G0/G1 phase cell cycle arrest, thereby inhibiting the proliferation of triple-negative breast cancer (TNBC) cell lines. In preclinical studies, SHP2/CDK4-IN-1 demonstrated significant antitumor efficacy in the EMT6 syngeneic mouse model, making it a valuable tool for research on TNBC.
K00546 is a highly selective inhibitor of cyclin-dependent kinases CDK1 and CDK2, exhibiting IC50 values of 0.6 nM and 0.5 nM, respectively, for CDK1/cyclin B and CDK2/cyclin A complexes. In addition, K00546 effectively inhibits CDC2-like kinases CLK1 and CLK3, with IC50 values of 8.9 nM and 29.2 nM, respectively. This compound is valuable for research focused on cell cycle regulation and the mechanistic study of kinase activity in cancer biology.
GW297361 is an oxindole compound identified as a cyclin-dependent kinase (CDK) inhibitor with a selective action on Pho85 in cellular systems. It demonstrates significant inhibitory effects on yeast Cdk1 and Pho85, exhibiting IC50 values of 20 nM and 400 nM, respectively. This compound is valuable for research applications focused on cell cycle regulation and the study of kinase signaling pathways.
ML 315 hydrochloride is a selective dual inhibitor targeting cyclin-dependent kinases (CDKs) and dual-specificity tyrosine-regulated kinases (DYRKs), exhibiting IC50 values of 68 nM and 282 nM, respectively. This compound is utilized in research focused on cancer and neurological diseases, providing insights into cell cycle regulation and neurodegenerative pathways. ML 315's potent inhibitory action makes it a valuable tool for studying therapeutic strategies in these critical areas.
(R)-(+)-O-Demethylbuchenavianine is a selective inhibitor of Cyclin-dependent kinases (CDKs), specifically targeting CDK1 and CDK5 with IC50 values of 1.1 and 0.95 μM, respectively. Additionally, it shows inhibitory activity against glycogen synthase kinase-3 (GSK3), cdc2-like kinase (CLK1), and dual specificity tyrosine-phosphorylation-regulated kinase 1A (DYRK1A), though with IC50 values greater than 10 μM. This compound is important for research focused on cell cycle regulation, cancer therapeutics, and neurodegenerative diseases.
ML 315 is a selective dual inhibitor of cyclin-dependent kinases (CDK) and dual-specificity tyrosine phosphorylation-regulated kinase (DYRK), exhibiting IC50 values of 68 nM and 282 nM, respectively. It demonstrates significant biological activity in modulating cell cycle progression and neuronal signaling pathways. This compound has applications in cancer research and the study of neurological diseases, facilitating insights into therapeutic targets within these areas.
Synonyms: Aristolochic acid-IVa
Aristolochic acid D is a selective inhibitor of PDE2 with an IC50 of 4.673 μM and CDK2 with an IC50 of 25 μM, derived from Aristolochia indica L. This compound demonstrates significant anti-inflammatory properties while exhibiting a non-carcinogenic and non-nephrotoxic profile. Aristolochic acid D is valuable for research applications focused on inflammation and tumor-related diseases, offering insights into therapeutic strategies.
CDK6/9-IN-2 is a potent dual inhibitor of cyclin-dependent kinases CDK6 and CDK9, with reported IC50 values of 15 nM and 22 nM, respectively. This compound exhibits selectivity for CDK2, CDK8, and CDK11. CDK6/9-IN-2 effectively inhibits the proliferation of HaCaT cells stimulated by IFN-γ and TNF-α, while also suppressing the STAT3 signaling pathway and the expression of inflammatory factors. Its ability to alleviate psoriatic dermatitis makes CDK6/9-IN-2 valuable for research in psoriasis and related inflammatory conditions.
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M5N36 is a selective inhibitor of Cdc25C, exhibiting IC50 values of 0.15 µM, 0.19 µM, and 0.06 µM for Cdc25A, Cdc25B, and Cdc25C, respectively. This compound demonstrates significant anti-proliferative activity and enhances the phosphorylation of CDK1 and CDK2. M5N36 is valuable for research applications targeting cell cycle regulation and cancer biology.
CDC25B-IN-2 is a selective inhibitor of the cdc25B phosphatase, which plays a crucial role in regulating cell cycle progression. This compound demonstrates significant inhibitory activity, making it valuable for investigating the molecular mechanisms governing cell cycle regulation and oncogenesis. CDC25B-IN-2 is ideal for research applications focused on cancer biology and therapeutic development targeting cell cycle dysregulation.
6,7-Dichloroquinoline-5,8-dione is a selective inhibitor of CDC25B2, demonstrating an IC50 value of 4.6 µM. This compound is valuable for investigating the role of CDC25B2 in cell cycle regulation and its implications in cancer research. Its inhibitory activity may facilitate studies aimed at understanding cancer mechanisms and developing targeted therapeutic strategies.
AS2863619 free base is a selective inhibitor of cyclin-dependent kinases 8 and 19 (CDK8 and CDK19), demonstrating IC50 values of 0.61 nM and 4.28 nM, respectively. This compound drives the conversion of antigen-specific effector and memory T cells into Foxp3+ regulatory T (Treg) cells, thereby offering potential therapeutic approaches for various immunological conditions. The inhibition of CDK8/19 by AS2863619 enhances STAT5 activation, leading to the upregulation of the Foxp3 gene and promoting Treg cell development.
Vanicoside B is a potent inhibitor of cyclin-dependent kinase 8 (CDK8), derived from the herb Persicaria dissitiflora. This compound demonstrates significant anti-tumor activity by disrupting CDK8-mediated signaling pathways and reducing the levels of proteins associated with epithelial-mesenchymal transition. As a result, Vanicoside B induces cell cycle arrest and apoptosis, making it a valuable reagent for cancer research and therapeutic investigations targeting CDK8 pathways.
CDK8/19-IN-2 is a potent and orally active inhibitor of cyclin-dependent kinases 8 and 19, exhibiting IC50 values of 2.08 nM and 2.49 nM, respectively. This compound is crucial for research focusing on acute myeloid leukemia (AML), breast cancer, and lymphoma, where inhibition of CDK8 and CDK19 can influence tumor proliferation and survival. Its selectivity and efficacy make it a valuable tool in studying the role of these kinases in various oncogenic pathways.
CDK8-IN-16 is a potent dual inhibitor of cyclin-dependent kinases 8 and 19, demonstrating IC50 values of 5.1 nM and 5.6 nM, respectively. This compound effectively inhibits phospho-STAT1SER727 with an IC50 of 17.9 nM in SW620 cells and modulates the WNT signaling pathway with an IC50 of 7.2 nM in 7dF3 cells. CDK8-IN-16 exhibits favorable pharmacokinetic properties, including an oral bioavailability of 57% in rat models, making it a valuable tool for research in cancer biology and therapeutic development.
(R)-DRF053 dihydrochloride is a selective inhibitor of casein kinases 1 (CK1), CDK1/cyclin B, and CDK5/p25, exhibiting IC50 values of 14 nM, 220 nM, and 80 nM, respectively. This compound effectively inhibits the CK1-mediated generation of amyloid-beta in cellular models, making it valuable for research into neurodegenerative diseases and cellular signaling pathways. Its specificity and potency position it as a suitable reagent for investigating the roles of these kinases in various biological processes.
