Polo-like Kinase (PLK) Inhibitor

Wortmannin (SL-2052; KY-12420) is a potent, selective and irreversible PI3K inhibitor with an IC₅₀ of 3 nM. Wortmannin also blocks autophagy formation, and potently inhibits Polo-like kinase 1 (PlK1) and Plk3 with IC₅₀s of 5.8 and 48 nM, respectively.

Volasertib (BI 6727) is an orally active, highly potent and ATP-competitive Polo-like kinase 1 (PLK1) inhibitor with an IC₅₀ of 0.87 nM. Volasertib inhibits PLK2 and PLK3 with IC₅₀s of 5 and 56 nM, respectively. Volasertib induces mitotic arrest and apoptosis. Volasertib, a dihydropteridinone derivative, shows marked antitumor activity in multiple cancer models.

BI 2536 is a dual PLK1 and BRD4 inhibitor with IC₅₀s of 0.83 and 25 nM, respectively. BI-2536 suppresses IFNB (encoding IFN-β) gene transcription.

ARV-825 is a BET protein PROTAC degrader that recruits cereblon, and it targets BRD2, BRD3, and BRD4 for degradation via the ubiquitin-proteasome pathway. ARV-825 downregulates c-MYC, PLK1, MYCN, CDK4/6, JAK2, pSTAT3/5, PIM1, and Bcl-xL, upregulates p21 and p27, and modulates H3K27Ac-mediated transcription, the G2/M checkpoint, the Wnt/β-catenin pathway, and amino acid transport pathways. ARV-825 induces G1 phase cell cycle arrest, caspase 3/PARP-mediated apoptosis, DNA damage, and reactive oxygen species (ROS) production, reduces mitochondrial respiration, and simultaneously inhibits cell proliferation, clonogenic growth, and cell migration. ARV-825 is used in research on gastric cancer, leukemia, neuroblastoma, and cholangiocarcinoma.

NMS-1286937 is a potent, selective and orally available PLK1 inhibitor, with an IC₅₀ of 2 nM.

GSK461364 is a selective, reversible and ATP-competitive Polo-like kinase 1 (PLK1) inhibitor with a K_i value of 2.2 nM.

Centrinone (LCR-263) is a selective and reversible inhibitor of polo-like kinase 4 (PLK4) with a K_i of 0.16 nM.

Rigosertib (ON-01910) is a multi-kinase inhibitor and a selective anti-cancer agent, which induces apoptosis by inhibition the PI3 kinase/Akt pathway, promots the phosphorylation of histone H2AX and induces G2/M arrest in cell cycle. Rigosertib is a selective and non-ATP-competitive inhibitor of PLK1 with an IC₅₀ of 9 nM.

CFI-400945 free base is a potent, selective and orally bioavailable PLK4 inhibitor with a K_i and an IC₅₀ of 0.26 nM and 2.8 nM, respectively.

ON1231320 is a highly specific polo like kinase 2 (PLK2) inhibitor with an IC₅₀ of 0.31 μM. ON1231320 blocks tumor cell cycle progression in the G2/M phase in mitosis, causing apoptotic cell death. ON1231320, an arylsulfonyl pyrido-pyrimidinone, has antitumor activity.

Centrinone-B (LCR-323) is a potent and highly selective PLK4 inhibitor, with a K_i of 0.59 nM.

TAK-960 is an orally available, selective inhibitor of polo-like kinase 1 (PLK1), with an IC₅₀ of 0.8 nM. TAK-960 also shows inhibitory activities against PLK2 and PLK3, with IC₅₀s of 16.9 and 50.2 nM, respectively. TAK-960 inhibits proliferation of multiple cancer cell lines and exhibits significant efficacy against multiple tumor xenografts.

HMN-214, an orally bioavailable proagent of HMN-176, is an inhibitor of polo-like kinase-1 (plk1), with antitumor activity.

FKBP12 PROTAC dTAG-7 (dTAG-7) is a FKBP12^F36V PROTAC degrader. FKBP12 PROTAC dTAG-7 binds FKBP12^F36V and CRBN to form a complex, mediating degradation via the ubiquitin-proteasome system. FKBP12 PROTAC dTAG-7 mediates the degradation of FKBP12^F36V-tagged nuclear and cytoplasmic proteins, including BRD4, HDAC1, EZH2, MYC, PLK1, KRAS^G12V, and antigen fusion proteins. FKBP12 PROTAC dTAG-7 enhances MHC class I antigen presentation. FKBP12 PROTAC dTAG-7 is applicable to leukemia-related research.

GW843682X is a selective, ATP-competitive inhibitor of PLK1 and PLK3, with IC₅₀s of 2.2 nM and 9.1 nM, respectively, and is also >100-fold selective against ～30 other kinases.

Ro3280 is a potent, highly selective inhibitor of PLK1 with an IC₅₀ and a K_d of 3 nM and 0.09 nM, respectively, and nearly has no effect on PLK2 and PLK3.

MLN0905 is a potent, orally active Polo-like kinase 1 (PLK1) inhibitor. MLN0905 has inhibitory potency against PLK1 with an IC₅₀ value of 2 nM. MLN0905 can be used for the research of cancer.

Rigosertib sodium (ON-01910 sodium) is a multi-kinase inhibitor and a selective anti-cancer agent, which induces apoptosis by inhibition the PI3K/Akt pathway, promotes the phosphorylation of histone H2AX and induces G2/M arrest in cell cycle. Rigosertib sodium is a selective and non-ATP-competitive inhibitor of PLK1 with an IC₅₀ of 9 nM.

CFI-400945 fumarate is a potent, selective and orally bioavailable PLK4 inhibitor with a K_i and an IC₅₀ of 0.26 nM and 2.8 nM, respectively.

dTAG Targeting Ligand 1 (SUBSTITUTE SHEET 245) is a PROTAC target protein ligand (Ligand for Target Protein for PROTAC). dTAG Targeting Ligand 1 can be used for synthesis PROTACs.