Cell lines

SW620 cells

Preparation method

This compound is soluble in DMSO. General tips for obtaining a higher concentration: Please warm the tube at 37 ℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below - 20 ℃ for several months.

Applications

In human colorectal carcinoma SW620 cells harboring an activating APC-mutation, CCT251545 analogue, Compound 51 potently inhibited phospho-STAT1SER727.

Animal models

Mice bearing human colorectal carcinoma SW620 cells

Dosage form

5 mg/kg; p.o.; b.i.d.

Applications

In mice bearing human colorectal carcinoma SW620 cells, CCT251545 analogue, Compound 51, reduced phospho-STAT1SER727 level in a time-dependent manner. At the dose of 5 mg/kg, a b.i.d. schedule would be required in order to achieve the maximal inhibitory effect.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

CCT251545 analogue, Compound 51 is a potent and selective CDK8/19 inhibitor with IC50 values of 5.1 nM and 5.6 nM, respectively [1].

Mediator complex-associated kinases CDK8 and CDK19 are involved in the regulation of multiple transcription pathways. CDK8 plays as an oncogene in gastric and colorectal cancers through activation of WNT signaling [1].

CCT251545 analogue, Compound 51 is a potent and selective CDK8/19 inhibitor. In SW620 human colorectal carcinoma cells harbouring activating APC-mutation, Compound 51 inhibited phospho-STAT1SER727 with IC50 value of 17.9 nM, a biomarker of CDK8 inhibition [1].

In vivo mouse and rat PK experiments, Compound 51 demonstrated medium in vivo clearance and Vd but low bioavailability in mice. In a SW620 colorectal carcinoma human tumor xenograft model, Compound 51 (5 mg/kg po dose) inhibited phospho-STAT1SER727 in a time-dependent way. Compound 51 is an advanced chemical tool to further explore the efficacy, safety and tolerability of dual CDK8/19 ligands [1].

Reference:
[1].Mallinger A, Schiemann K, Rink C, et al. 2,8-Disubstituted-1,6-Naphthyridines and 4,6-Disubstituted-Isoquinolines with Potent, Selective Affinity for CDK8/19. ACS Med Chem Lett. 2016 Mar 28;7(6):573-8.