CDK4 Inhibitor

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.

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.

GDC-4198 (RGT-419B) is an orally active CDK4/2 inhibitor with desired degrees of selectivity against kinases such as CDK6, CDK9 and GSK3β. GDC-4198 inhibits the activity of cyclin-CDK complexes, blocks phosphorylation of the retinoblastoma protein (pRb), arresting the cell cycle transition from G1 to S phase. GDC-4198 is promising for research of cancers, such as breast cancer (especially hormone receptor-positive, HER2-negative type), lung cancer, and colorectal cancer.

Cimpuciclib tosylate is a selective CDK4 inhibitor (IC₅₀: 0.49 nM) that has anti-tumor activity.

CDK4/6-IN-18 (Example 2BrIC) is a selective CDK4/6 inhibitor. CDK4/6-IN-18 inhibits ionizing radiation (IR)-induced DNA damage in cells.

DDO-6600 is a covalent Hsp90 inhibitor. DDO-6600 disrupts the interaction between Hsp90 and its co-chaperone protein Cdc37, thereby inducing the degradation of kinase client proteins (such as AKT, CDK4, c-Raf). DDO-6600 has inhibitory activity against various cancer cells. DDO-6600 inhibits the migration and invasion of HCT-116 cells, and induces cell cycle arrest and apoptosis. DDO-6600 significantly inhibits tumor growth in the HCT-116 xenograft tumor model. DDO-6600 can be used for research on colorectal cancer.

RGB-286147 is a selective and ATP-competitive CDK and CDK-related kinases (CRK) inhibitor with IC₅₀ values ranging from 9-839 nM. RGB-286147 shows less active against other non-CDK/CRK kinases. RGB-286147 induces cell apoptosis, and exhibits anti-tumor activity.

CDK6/PIM1-IN-1 is a potent and balanced dual CDK6/PIM1 inhibitor with IC₅₀ values of 39 and 88 nM, respectively. CDK6/PIM1-IN-1 inhibits CDK4 (IC₅₀=3.6 nM). CDK6/PIM1-IN-1 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.

AMG 925 HCl is a potent, selective, and orally available FLT3/CDK4 dual inhibitor with IC₅₀s of 2±1 nM and 3±1 nM, respectively.

Sinigrin (Allyl-glucosinolate) hydrate is an orally active glucosinolate found in cruciferous plants. Sinigrin hydrate possesses multiple activities such as anti-cancer, antibacterial, antifungal, anti-inflammatory, antioxidant, and inhibition of fat synthesis. Sinigrin hydrate can be used in the research of tumors, inflammatory, and metabolic diseases.

GW297361 is an oxindole CDK inhibitor that elicits a Pho85-selective response in cells. GW297361 inhibits yeast Cdk1 and Pho85 with IC₅₀s of 20 nM and 400 nM in vitro, respectively.

Olomoucine II is a potent CDK inhibitor with IC₅₀ values of 0.06, 0.1, 0.45, 7.6, 19.8 µM for CDK9/cyclin T, CDK2/cyclin E, CDK7/cyclin H, CDK1/cyclin B, CDK4/cyclin D1, respectively. Olomoucine II shows antiproliferative activity.

CA224 (Compound 1) is a selective and orally active Cdk4–cyclin D1 inhibitor with an IC₅₀ of 6.2 µM. CA224 induces cell apoptosis and shows antitumor activity.

Palbociclib (PD 0332991) dihydrochloride is an orally active selective CDK4 and CDK6 inhibitor with IC₅₀ values of 11 and 16 nM, respectively. Palbociclib dihydrochloride has potent anti-proliferative activity and induces cell cycle arrest in cancer cells, which can be used in the research of HR-positive and HER2-negative breast cancer and hepatocellular carcinoma.

Palbociclib (PD 0332991) orotate is an orally active selective CDK4 and CDK6 inhibitor with IC₅₀ values of 11 and 16 nM, respectively. Palbociclib orotate has potent anti-proliferative activity and induces cell cycle arrest in cancer cells. Palbociclib orotate can be used in the research of HR-positive and HER2-negative breast cancer and hepatocellular carcinoma.

Cimpuciclib is a selective CDK4 inhibitor (IC₅₀: 0.49 nM) that has anti-tumor activity.

CDK4/6-IN-3 is a brain-penetrant CDK4/CDK6 inhibitor with K_is of <0.3 nM and 2.2 nM, respectively. CDK4/6-IN-3 inhibits CDK1 with a K_i of 110 nM. CDK4/6-IN-3 can be used for the treatment of glioblastoma.

Riviciclib (P276-00 free base) is a potent cyclin-dependent kinase (CDK) inhibitor, which inhibits CDK9-cyclinT1, CDK4-cyclin D1, and CDK1-cyclinB with IC₅₀s of 20 nM, 63 nM, and 79 nM, respectively. Riviciclib shows antitumor activity on cisplatin-resistant cells.

CDK7-IN-30 (Compound 22) is a CDK7 inhibitor (IC₅₀ = 7.21 nM) that effectively inhibits the phosphorylation of RNA Polymerase II and CDK2. CDK7-IN-30 CDK7-IN-30 can induce cell apoptosis and has anti-cancer activity and can be used in cancer research.

CDK2/4-IN-1 (compound B-4a) is a CDK2/4 inhibitor and a tubulin polymerization inhibitor. CDK2/4-IN-1 can be used in cancer research.