TP53 and cancer: In the present study, we investigated the ability of Gallic acid, to potentiate the anti-cancer effects of Paclitaxel, Carboplatin and Paclitaxel/Carboplatin combination in human HeLa cells by performing MTT assay, cell cycle analysis, RT-PCR assay for P53, Bcl-2, and Caspase 3 genes and Western blot analysis for P53 and Caspase 3.