Synthesis of retinoid enhancers based on 2-aminobenzothiazoles for anti-cancer therapy
2012
Gardner, Christopher R. | Cheung, Belamy B. | Koach, Jessica | Black, David StC. | Marshall, Glenn M. | Kumar, Naresh
Indole-3-amides and dipeptides were produced from 2-aminobenzothiazoles using the PyBop peptide coupling reagent. These analogues were tested in anti-cancer cell viability assays against SH-SY5Y neuroblastoma and MDA-MB-231 breast adenocarcinoma cell lines, and were found to exhibit cytotoxic activities at concentrations ranging from 0.1 to 20μM. These compounds were also found to act additively with a low dosage of 13-cis-retinoic acid in neuroblastoma cells. Then, using neuroblastoma cells transfected to stably overexpress the RARβ₂ gene, a SAR was developed for the indole-3-amides. Real-time PCR was also used to demonstrate their RARβ₂ agonistic activity.
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