Figure 3. The effect of miR-101 constructs on the expression level of miR-101.

MCF-7, T47D, MDA-MB-231 and Hs518bst were respectively transfected with pre-miR control, miR-101 mimics (A), anti-miR control or miR-101 inhibitor (B). The miR-101 level was detected by TaqMan miRNA RT-Real Time PCR. U6 serves as an internal reference. The expression of miR-101 in control group was set to 1. The y-axis displays the relative log2 ratio of miR-101 normalized by U6. **P<0.01.