miR-152 inhibits cell proliferation and arrest cell cycle through regulating KLF5. (A) Relative miR-152 expression in HeLa cells transfected with miR-152 mimic, inhibitor, or control. Relative KLF5 (B) mRNA and (C) protein expressions of KLF5 in HeLa cells transfected with si-KLF5 and control. (D) Cell proliferation rate of HeLa cells transfected with miR-152 mimic, inhibitor, siRNA targeting KLF5 (si-KLF5), or control. (E) Cell cycle distribution of HeLa cells transfected with miR-152 mimic, inhibitor, si-KLF5, or control. **p < 0.01, ***p < 0.001.