Western blot analyses were carried out at least twice for each experiment. (CCND1) and folate receptor 1 (FOLR1), and the loss of methylenetetrahydrofolate reductase (MTHFR) manifestation. Furthermore, long-term exposure to NaAsIII induced the proliferation and jeopardized the response of MCF7 cells to tamoxifen (TAM). The exposure to NaAsIII induced CpG methylation associated with the improved […]