CDK4
CDK4 is a cyclin-dependent serine/threonine kinase that partners with D-type cyclins to drive G1-phase progression before DNA synthesis[1]. Mechanistically, cyclin D-CDK4/6 phosphorylates RB, weakens RB-dependent transcriptional repression, and enables late-G1 signaling toward E2F-linked S-phase entry[2]. In cancer models, disruption of the CDK-RB1-E2F pathway supports malignant proliferation, and HR^+/HER2^- breast cancer provides a clinically established setting for CDK4/6 inhibition[3]. Compared with related isoforms, CDK4 and CDK6 share cell-cycle functions, but CDK4 is described as a prominent oncogenic driver in breast cancer, whereas CDK6 has a crucial role in hematopoietic stem-cell differentiation[3][4]. For experimental and translational applications, palbociclib, ribociclib, and abemaciclib inhibit CDK4/6, reduce RB phosphorylation, induce G1 arrest, and support endocrine-therapy combinations in HR^+/HER2^- advanced breast cancer studies[3][5][6][7].
References:
- [1]. Baker SJ, et al. CDK4: a master regulator of the cell cycle and its role in cancer. Genes Cancer. 2022 Aug 25;13:21-45. [Content Brief]
- [2]. Harbour JW, et al. Cdk phosphorylation triggers sequential intramolecular interactions that progressively block Rb functions as cells move through G1. Cell. 1999 Sep 17;98(6):859-69. [Content Brief]
- [3]. Braal CL, et al. Inhibiting CDK4/6 in Breast Cancer with Palbociclib, Ribociclib, and Abemaciclib: Similarities and Differences. Drugs. 2021 Feb;81(3):317-331. [Content Brief]
- [4]. Fassl A, et al. CDK4 and CDK6 kinases: From basic science to cancer therapy. Science. 2022 Jan 14;375(6577):eabc1495. [Content Brief]
- [5]. Finn RS, et al. Palbociclib and Letrozole in Advanced Breast Cancer. N Engl J Med. 2016 Nov 17;375(20):1925-1936. [Content Brief]
- [6]. Hortobagyi GN, et al. Ribociclib as First-Line Therapy for HR-Positive, Advanced Breast Cancer. N Engl J Med. 2016 Nov 3;375(18):1738-1748. [Content Brief]
- [7]. Goetz MP, et al. MONARCH 3: Abemaciclib As Initial Therapy for Advanced Breast Cancer. J Clin Oncol. 2017 Nov 10;35(32):3638-3646. [Content Brief]
All Product Categories
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CDK4 Related Products (236)
Related Products (236)
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Recombinant Proteins (4)
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Antibodies (2)
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AG-012986
0 ImagesAG-012986 is a pan-CDK inhibitor with Ki values of 44 nM (CDK1), 9.2 nM (CDK4), 94 nM (CDK2), and IC50 values of 22 nM (CDK5), 4 nM (CDK9). AG-012986 causes apoptosis of T-cells by targeting upstream kinases in the p38 Mitogen-activated protein kinase (MAPK) pathway and impairing cellular survival. AG-012986 induces cell cycle arrest, retinoblastoma protein hypophosphorylation, and reduces Ki-67 expression. AG-012986 exerts antiproliferative activity in tumor cells, demonstrates antitumor efficacy in human xenograft models, and causes retinal and peripheral neurotoxicity, plus immune cell toxicity. AG-012986 can be used for the research of colon carcinoma, non-small cell lung carcinoma, lung carcinoma, breast carcinoma, ovarian tumor, pancreatic carcinoma, osteosarcoma, lymphoma, leukemia, retinotoxicity.
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Ganoderic acid H
0 ImagesGanoderic acid H is a hydroxylated lanostane-type triterpenoid derived from Ganoderma lucidum with anticancer activity. Ganoderic acid H inhibits the constitutive transactivation activity of AP-1 and NF-κB; it also downregulates the secretion of uPA and the expression of CDK4, and suppresses the growth, adhesion, migration and invasion of cancer cells. Ganoderic acid H inhibits HIV-1 protease in vitro. Ganoderic acid H can be used in studies related to breast cancer and HIV infection.
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Abemaciclib metabolite M20-d8
0 ImagesCat. No.: HY-129336SPurity: 99.26%Synonyms: LSN3106726-d8Abemaciclib metabolite M20-d8 is the deuterium labeled Abemaciclib metabolite M20. Abemaciclib metabolite M20 (LSN3106726), the active metabolite of Abemaciclib, is a selective CDK4/6 inhibitor.
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ON-013100
0 ImagesON-013100, an antineoplastic agent, acts a mitotic inhibitor that could inhibit Cyclin D1 expression.
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PROTAC CDK2/4 Degrader-1
0 ImagesCat. No.: HY-179688Purity: 98.10%PROTAC CDK2/4 Degrader-1 is a PROTAC degrader of cyclin-dependent kinase 2 (CDK2) and cyclin-dependent kinase 4 (CDK4). PROTAC CDK2/4 Degrader-1 induces degradation via the ubiquitin-proteasome pathway. PROTAC CDK2/4 Degrader-1 can be used in cancer research.
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CDK4/6-IN-12
0 ImagesCDK4/6-IN-12 is a potent cyclin-dependent kinase 4/6 (CDK4/6) inhibitor. CDK4/6-IN-12 has enzymatic inhibitory activity for CDK4 and CDK6 with IC50 of 592.3 nM and 3090 nM, respectively. CDK4/6-IN-12 can be used for the research of cancer.
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Fascaplysin
0 ImagesCat. No.: HY-112328CAS No.: 114719-57-2Fascaplysin is an antimicrobial and cytotoxic red pigment, that can come from the marine sponge (Fascaplysinopsis sp.). Fascaplysin has been synthesized in seven steps from indole (65% yield). Fascaplysin can induces apoptosis and autophagy in human leukemia HL-60 cells. Fascaplysin shows anti-tumor activity.
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INK4C-IN-2
0 ImagesINK4C-IN-2 is a p18INK4C inhibitor. NK4C-IN-2 promotes hematopoietic stem cells (HSCs) division by inhibiting INK4C and activating CDK4/6, with an ED50 of 5.21 nM. INK4C-IN-2 shows no cytotoxic to normal 32D cells, HSCs, leukemia cell lines and myeloma cell lines.
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CDK4/6-IN-9
0 ImagesCDK4/6-IN-9 (compound 10) is a selective CDK4/6 inhibitor with an IC50 of 905 nM for CDK6/cyclin D1. CDK4/6-IN-9 has the potential for multiple myeloma (MM) research.
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LA-CB1
0 ImagesLA-CB1 is an Abemaciclib (HY-16297A) derivative that targets CDK4/6 and promotes its degradation via the ubiquitin-proteasome pathway, thereby disrupting the CDK4/6-Cyclin D1-Rb-E2F axis and inducing G0/G1 cell cycle arrest and apoptosis. LA-CB1 exhibits antiproliferative activity against MDA-MB-231 cells, with an IC50 of 0.27 µM, and effectively inhibits epithelial-mesenchymal transition (EMT), cell migration, invasion, and angiogenesis. In highly aggressive models such as triple-negative breast cancer (TNBC), LA-CB1 significantly suppresses tumor growth in a dose-dependent manner. LA-CB1 holds potential for research in the field of breast cancer.
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CDK6/PIM1-IN-1 hydrochloride
0 ImagesCDK6/PIM1-IN-1 (Compound 51) hydrochloride is an orally active and potent dual CDK6/PIM1 inhibitor with IC50 values of 39 and 88 nM, respectively. CDK6/PIM1-IN-1 hydrochloride inhibits CDK4 (IC50=3.6 nM). CDK6/PIM1-IN-1 hydrochloride significantly inhibits acute myeloid leukemia (AML) cell proliferation, arrest cell cycle at the G1 phase, and promote cell apoptosis. CDK6/PIM1-IN-1 exhibits potent anti-AML activity.
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Rafutrombopag
0 ImagesCat. No.: HY-145589CAS No.: 2600513-51-5Synonyms: Hetrombopag; SHR-8735Rafutrombopag (Hetrombopag) is an orally active nonpeptide thrombopoietin receptor (TPOR/MPL) agonist. Rafutrombopag can chelate iron and alleviate iron overload while promoting haematopoiesis. Rafutrombopag specifically stimulates proliferation and differentiation of human TPOR-expressing cells, including 32D-MPL and human hematopoietic stem cells through stimulation of STAT, PI3K and ERK signalling pathways. Rafutrombopag effectively up-regulates G1-phase-related proteins, including p-RB, Cyclin D1 and CDK4/6, normalizes progression of the cell cycle, and prevents apoptosis by modulating BCL-XL/BAK expression in 32D-MPL cells. Rafutrombopag protects cardiomyocyte survival from oxidative stress damage as an enhancer of stem cells. Rafutrombopag can be used for the study of immune thrombocytopenia and oxidative stress-related cardiovascular disease.
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BS-181
0 ImagesCat. No.: HY-13266CAS No.: 1092443-52-1BS-181 is a potent and selective CDK7 inhibitor (IC50=21 nM) than Seliciclib (HY-30237). BS-181 is also against CDK2, CDK5 and CDK9 with IC50 values of 880, 3000 and 4200 nM, respectively (fails to block CDK1, 4 and 6). BS-181 inhibits a panel of cancer cells growth (IC50=11.5 μM-37.3 μM) and induces cell apoptosis. BS-181 has the potential for the research of cancer therapy.
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ZDLD20
0 ImagesZDLD20, a β-carboline, is orally active and selective CDK4/CycD3 inhibitor with an IC50 value of 6.51 μM. ZDLD20 exhibits potent anti-HCT116 activity including inhibition of colony formation, inhibition of invasion and migration, inducing of apoptosis, and arresting of G1 phase in cell cycle. ZDLD20 exhibits potent anticancer activity.
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NecroIr2
0 ImagesCat. No.: HY-148366Purity: 98.02%NecroIr2 is an iridium(III) complex, serves as necroptosis inducers in Cisplatin (HY-17394)-resistant lung cancer cells (A549R). NecroIr2 selectively accumulates in mitochondria, leading to oxidative stress and loss of mitochondrial membrane potential (MMP). NecroIr2 activates receptor-interacting serine-threonine kinase 3 (RIPK3) and mixed lineage kinase domain-like pseudokinase (MLKL), and regulates CDK4 expression.
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NecroIr1
0 ImagesCat. No.: HY-148365Purity: 98.53%NecroIr1 is an iridium(III) complex, serves as necroptosis inducers in Cisplatin (HY-17394)-resistant lung cancer cells (A549R). NecroIr1 selectively accumulates in mitochondria, leading to oxidative stress and loss of mitochondrial membrane potential (MMP). NecroIr1 activates receptor-interacting serine-threonine kinase 3 (RIPK3) and Mixed Lineage Kinase (MLKL), and regulates CDK4 expression.
