MicroRNAs in murine macrophages (RAW264.7 cells). Macrophages were cultured with saline (empty bars) or 0.8 μg/ml of docetaxel (dark bars) for the indicated lengths of time. Real-time PCR was performed to determination of miR-181a (A), miR-155 (B), miR-150 (C), miR-146a (D) and miR-125b (E) as described in methods. Data are presented as copies ± SD/cell (n = 3). Significant differences with the control were designated as *P < 0.05 and **P < 0.01.