miR-107 significantly promotes breast cancer cell apoptosis rate after treated with paclitaxel. (A) Control group; (B) PTX group; (C) PTX + NC group; (D) PTX + miR-107 group; (E) PTX +TPD52 +miR-107 group; (F) The corresponding quantified apoptosis rate results of A-E was exhibited. **P<0.01, PTX vs control; PTX + miR-107 vs PTX + NC; PTX + TPD52 + miR-107 vs PTX +miR-107. Control, un-treated cells; PTX, cells were exposed to PTX with the concentration of 0.1μg/ml; NC, miR-107 mimics negative control-transfected cells; miR-107, miR-107 mimics-transfected cells; TPD52, tumor protein D52, cells transfected with pcDNA3.1-TPD52.