Research paperRepositioning of the antipsychotic Trifluoperazine (cas 117-89-5): Synthesis, biological evaluation and in silico study of Trifluoperazine (cas 117-89-5) analogs as anti-glioblastoma agents

Add time:08/26/2019    Source:sciencedirect.com

Repositioning of the antipsychotic drug Trifluoperazine (cas 117-89-5) for treatment of glioblastoma, an aggressive brain tumor, has been previously suggested. However, trifluoperazine did not increase the survival time in mice models of glioblastoma. In attempt to identify an effective trifluoperazine analog, fourteen compounds have been synthesized and biologically in vitro and in vivo assessed. Using MTT assay, compounds 3dc and 3dd elicited 4–5 times more potent inhibitory activity than trifluoperazine with IC50 = 2.3 and 2.2 μM against U87MG glioblastoma cells, as well as, IC50 = 2.2 and 2.1 μM against GBL28 human glioblastoma patient derived primary cells, respectively. Furthermore, they have shown a reasonable selectivity for glioblastoma cells over NSC normal neural cell. In vivo evaluation of analog 3dc confirmed its advantageous effect on reduction of tumor size and increasing the survival time in brain xenograft mouse model of glioblastoma. Molecular modeling simulation provided a reasonable explanation for the observed variation in the capability of the synthesized analogs to increase the intracellular Ca2+ levels. In summary, this study presents compound 3dc as a proposed new tool for the adjuvant chemotherapy of glioblastoma.

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