Home Cell Cycle PLK inhibitor - Apoptosis related activator Onvansertib (NMS-P937) For research use only.

Onvansertib (NMS-P937)

Synonyms: PCM-075, NMS1286937

Onvansertib (NMS-P937, PCM-075, NMS1286937) is an orally available, selective Polo-like Kinase 1 (PLK1) inhibitor with IC50 of 2 nM, 5000-fold selectivity over PLK2/PLK3. Onvansertib (NMS-P937) potently causes a mitotic cell-cycle arrest followed by apoptosis in cancer cell lines and inhibits tumor growth. Phase 1.

Onvansertib (NMS-P937) Chemical Structure

Onvansertib (NMS-P937) Chemical Structure

CAS No. 1034616-18-6

Purity & Quality Control

Onvansertib (NMS-P937) Related Products

Signaling Pathway

PLK Signaling Pathways

PLK Signaling Pathway

Cell Data

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
A2780 Antiproliferative assay Antiproliferative activity against human A2780 cells, IC50 = 0.042 μM. 21470862
CAL51 Cell cycle assay 0.1 to 1 uM 24 hrs Cell cycle arrest in human CAL51 cells at 0.1 to 1 uM after 24 hrs by flow cytometry 21470862
Click to View More Cell Line Experimental Data

Biological Activity

Description Onvansertib (NMS-P937, PCM-075, NMS1286937) is an orally available, selective Polo-like Kinase 1 (PLK1) inhibitor with IC50 of 2 nM, 5000-fold selectivity over PLK2/PLK3. Onvansertib (NMS-P937) potently causes a mitotic cell-cycle arrest followed by apoptosis in cancer cell lines and inhibits tumor growth. Phase 1.
Targets
PLK1 [1]
2 nM
In vitro
In vitro

NMS-P937 shows a broad-spectrum antiproliferative activity against different solid tumor, leukemias and lymphomas cell lines. NMS-P937 potently causes a mitotic cell-cycle arrest followed by apoptosis in A2780 cells. [2]
Kinase Assay Kinase profile
The inhibitory activity of putative kinase inhibitors and the potency of selected compounds are determined using a trans-phosphorylation assay. Specific peptide or protein substrates are trans-phosphorylated by their specific serine-threonine or tyrosine kinase, in the presence of ATP traced with 33P-γ-ATP, at optimized buffer and cofactors conditions. At the end of the phosphorylation reaction, more than 98% unlabeled ATP and radioactive ATP is captured by adding an excess of the ion exchange dowex resin; the resin then settles down to the bottom of the reaction plate by gravity. Supernatant, containing the phosphorylated substrate, is subsequently withdrawn and transferred into a counting plate, followed by evaluation by b-counting. Inhibitory potency evaluation for all the tested kinases was performed at 25 °C using a 60 min end-point assay where the concentrations of ATP and substrates are kept equal to 2 x αKm and saturated (>5 x αKm), respectively.
Cell Research Cell lines 137 solid tumor cell lines, and 43 cell lines derived from leukemias and lymphomas
Concentrations ~10 μM
Incubation Time 72 hours
Method

Cells are seeded into 96- or 384-well plates at densities ranging from 10,000 to 30,000/cm2 for adherent and 100,000/mL for nonadherent cells in appropriate medium supplemented with 10% fetal calf serum. After 24 hours, cells were treated in duplicate with serial dilutions of NMS-P937, and 72 hours later, the viable cell number was assessed by the CellTiter-Glo Assay (Promega). IC50 values were calculated with a sigmoidal fitting algorithm (Assay Explorer MDL). Experiments were carried out independently at least twice.
In Vivo
In vivo

In mice xenografted with human HCT116 colon adenocarcinoma cells, NMS-P937 (90 mg/kg/d i.v. or p.o.) shows a significant tumor growth inhibition. [1]

In mice bearing HT29, Colo205 colorectal, or A2780 ovarian xenograft tumors, NMS-P937 inhibits xenograft tumor growth. In addition, NMS-P937, in combination with approved cytotoxic drugs, causes enhanced tumor regression, and prolongs survival of animals. [2]
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT05593328 Active not recruiting
Colorectal Cancer|Metastatic Colorectal Cancer
Cardiff Oncology
 March 17 2023 Phase 2
NCT03829410 Completed
Metastatic Colorectal Cancer|KRAS Gene Mutation
Cardiff Oncology
 May 6 2019 Phase 1|Phase 2
NCT03303339 Completed
Acute Myeloid Leukemia
Cardiff Oncology
 November 17 2017 Phase 1|Phase 2

Chemical Information & Solubility

Molecular Weight 532.52 Formula

C24H27F3N8O3
CAS No. 1034616-18-6 SDF Download Onvansertib (NMS-P937) SDF
Smiles CN1CCN(CC1)C2=CC(=C(C=C2)OC(F)(F)F)NC3=NC=C4CCC5=C(C4=N3)N(N=C5C(=O)N)CCO
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 42 mg/mL ( (78.87 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 10 mg/mL

Water : Insoluble


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In vivo
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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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