All single and combined treated groups showed a significant increase in apoptosis indicated by upregulated mRNA level of the pro apoptotic marker Bax and downregulated mRNA level of the anti apoptotic marker Bcl2 and a significant decrease in mRNA level of the two breast cancer related receptors EGFR and ER?±, with the best effect in combined groups especially that contained the 4 compounds, as compared to vehicle treated group buy accutane from legal chemist