Effects of ClF (IC50) and EGCG (10 µM) or genistein (10 µM) alone and in combination on expression of modifiers of DNA methylation reaction, DNMT1, CDKN1A, and TP53, in MCF7 (A) and MDA-MB-231 (B) cells. All results represent mean ± SD of three independent experiments. Exposure (ClF alone, EGCG alone, genistein alone, ClF + EGCG or ClF + Genistein) versus vehicle control, *** p < 0.001, ** p < 0.01, * p < 0.05. EGCG or genistein alone versus combinatorial exposure (ClF + EGCG or ClF + Genistein), ^^^ p < 0.001, ^^ p < 0.01, ^ p < 0.05. ClF alone versus combinatorial exposure (ClF + EGCG or ClF + Genistein), ## p < 0.01, # p < 0.05.