TGFBR2 and breast cancer: The present study applied miR-301b-3p-inhibitor and small interfering-TGFBR2 (si-TGFBR2) to produce miR-301b-3p-IN and miR-301b-3p-IN+si-TGFBR2 interfering cells in the BC cell lines (MCF-10A and MCF-7) to analyze the role of miR-301b-3p and TGFBR2 in BC development.