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  • CHR-6494 CHR-6494


Quick Overview

CAS No.: 1333377-65-3
Catalog No.: 100828
Purity: 95%
MF: C16H16N6
MW: 292.346
Storage: Room temperature
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CHR-6494 is a potent inhibitor of haspin, inhibiting histone H3T3 phosphorylation, with an IC50 of 2 nM.

IC50 & Target
IC50: 2 nM (haspin)[1]

In Vitro
CHR-6494 is a potent inhibitor of haspin, inhibiting histone H3T3 phosphorylation, with an IC50 of 2 nM. CHR-6494 does not modify H3S10 and H328 phosphorylation levels, and shows no significantly inhibitory effects on other protein kinases such as Aurora B kinase. CHR-6494 dose-dependently inhibits the growth of cancer cells, such as HCT-116, HeLa, MDA-MB-231, and Wi-38 cell, with IC50s of 500 nM, 473 nM, 752 nM and 1059 nM, respectively. CHR-6494 (500 nM) produces a mitotic catastrophe with abnormal morphology of the mitotic spindle and centrosome amplification, and upregulates the spindle assembly checkpoint protein BUB1 and the marker of mitotic arrest cyclin B1[1]. CHR-6494 exhibits inhibitory activities against melanoma cell lines, including BRAFV600E mutants, NRAS mutants, and wild type cells, with IC50s ranging from 396 nM to 1229 nM. CHR-6494 (300 nM and 600 nM) induces apoptosis, increases caspase 3/7 activity by 3- and 6-fold, respectively in COLO-792 cells, and to 8.5- and 16-fold in RPMI-7951 cells. CHR-6494 in combination with MEK inhibitors synergistically inhibits viability of melanoma cells, enhances apoptosis in melanoma cells, modulates cell cycle progression independently by arresting melanoma cells at different phases, and suppresses migration of melanoma cells[2].

In Vivo
CHR-6494 (50 mg/kg, i.p.) inhibits the growth of tumor and cuases no obvious body weight change in nude mice bearing HCT-116 human colorectal cancer cells[1].

[1]. Huertas D, et al. Antitumor activity of a small-molecule inhibitor of the histone kinase Haspin. Oncogene. 2012 Mar 15;31(11):1408-18.

[2]. Han L, et al. Anti-Melanoma Activities of Haspin Inhibitor CHR-6494 Deployed as a Single Agent or in a Synergistic Combination with MEK Inhibitor. J Cancer. 2017 Aug 25;8(15):2933-2943.
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