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描述 | MSC2530818 binds to CDK8 and CDK19 with similar affinity (IC50 of 4 nM). It effectively inhibits the phosphorylation of STAT1SER727 (a biomarker of CDK8 activity) in SW620 human colorectal cancer cells (pSTAT1SER727 IC50=8±2 nM). MSC2530818 shows effective inhibition of WNT-dependent transcription in human cancer cell lines with constitutively active WNT signaling. For instance, MSC2530818 inhibits luciferase readings from reporter genes in several cell lines with mutations activating the WNT pathway; LS174T (β-catenin mutant, IC50=32±7 nM), COLO205 (APC mutant, IC50=9±1 nM) and shows inhibition of WNT3a ligand-dependent reporter gene readings in PA-1 cells (IC50=52±30 nM). MSC2530818 exhibits minimal activity in the CEREP panel and minimal hERG inhibition. Additionally, MSC2530818 is a soluble CDK8 inhibitor with high permeability and low efflux in Caco-2 cells, and does not inhibit any cytochrome P450 subtypes[1]. |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.93mL 0.59mL 0.29mL |
14.67mL 2.93mL 1.47mL |
29.34mL 5.87mL 2.93mL |
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