“Additional analyses indicated the significant up-regulation (P = 0.001) of tumor suppressor p53 and p53-regulated pro-apoptotic Bax and Fas in MCF-7 cells following CPA treatment in combination with RES , which may contribute to the enhancement of the antitumor effect of CPA.”
“Interestingly, we found that RES significantly enhances the caspase-mediated cytotoxic activity of CPA on MCF-7 cells in vitro.”
“ RES at 50 microM decreases … IC(50) value of CPA from 10 to 5 mM. FACS data reveals CPA or RES alone mediated G0/G1 and S phase arrest, while … combination of these drugs released both the arrests and results in an increase in the sub G0/G1 peak.”