MGMT inhibitor Lomeguatrib Small Molecule (Tool Compound)
Cat. #:
151711
Sub-type:
Inhibitor
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Application:
Lomeguatrib (20 mg/kg/day for 5 days) combined with Temozolomide (100 mg/kg/day for 5 days) produces a substantial tumour growth delay: median tumour quintupling time is increased by 22 days without any significant increase in toxicity, while neither of the two drugs administrated along show any antitumor activity. Lomeguatrib inactivates ATase and enhances the anti-tumour effect of Temozolomide in A375M human melanoma xenografts model. Lomeguatrib, at a single dose of 20 mg/kg i.p., produces…
CDK7 inhibitor BS-181 Small Molecule (Tool Compound)
Cat. #:
151712
Sub-type:
Inhibitor
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BS-181 is stable in vivo with a plasma elimination half-life in mice of 405 minutes after i.p. administration of 10 mg/kg. BS-181 inhibits the growth of MCF-7 xenografts in the nude mice model in a dose-dependent manner, with 25% and 50% reduction in tumor growth after 2 weeks of treatment at 10 mg/kg/day and 20 mg/kg/day, respectively without apparent toxicity. BS-181 is a small molecule inhibitor of CDK7 in a cell-free environment, which displays more potential activity than roscovitine with IC 50 of 510 nM. Among the CDKs and other 69 kinases from many different classes, BS-181 shows high inhibitory selectivity for CDK7, inhibits CDK2 at concentrations lower than 1 ÎźM which being inhibited 35-fold less potently (IC50 with 880 nM) than CDK7, shows slight inhibition for CDK1, CDK4, CDK5, CDK6 and CDK9 with IC50 values higher than 3.0 ÎźM, and only shows inhibition for several kinases from other classes at high concentrations (>10 ÎźM). BS-181 promotes cell cycle arrest and inhibits the cancer cell growth of a range of tumor types, including breast, lung, prostate and colorectal cancer with IC50 in the range of 11.5-37 ÎźM. In MCF-7 cells, BS-181 inhibits the phosphorylation of the CDK7 substrate RNA polymerase II COOH-terminal domain (CTD), and promotes cell cycle arrest and apoptosis to inhibit the growth of cancer cell lines.
Antitumoral Phortress Small Molecule (Tool Compound)
Cat. #:
151839
Sub-type:
Antitumoral
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Application:
Active against breast, ovarian and renal carcinomas. Taken up into sensitive cells followed by aryl hydrocarbon receptor binding and translocation into the nucleus. Requires metabolic activation by cytochrome P450 to generate cytotoxic species. Induces expression of CYP1A1 and generates adducts in the DNA of sensitive MCF7 and IGROV-1 cells.
CDK2 inhibitor NU6301 Small Molecule (Tool Compound)
Cat. #:
152754
Sub-type:
Inhibitor
Availability:
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Application:
The prodrug NU6301 rapidly generated NU6102 in vitro in mouse plasma, and tumour NU6102 levels in vivo consistent with activity in vitro. Eight or 12 hourly dosing of 120 mg/kg NU6301 for 10 days was well tolerated in SKUT-1B tumour-bearing mice and inhibited Rb phosphorylation in tumour tissue. Two (8 hourly dosing) and 3 (12 hourly dosing) day tumour growth delay was observed (p=0.04 and p=0.007, respectively) following NU6301 administration. NU6102 selectively inhibited the growth of CDK2 WT (wild type) versus KO MEFs (knockout mouse embryo fibroblasts) (GIâ â (concentration required to inhibit cell growth by 50%) 14 ÎźM versus >30 ÎźM), and was more growth-inhibitory in p53 mutant or null versus p53 WT cells (p=0.02), and in Rb (retinoblastoma protein) WT SKUT-1B versus SKUT 1 Rb deficient cells (p=0.01). In SKUT-1B cells NU6102 induced a G2 arrest, inhibition of Rb phosphorylation and cytotoxicity (LCâ â 2.6 ÎźM for a 24h exposure).
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