Figure 3.

MiR-21-5p is regulated by lncRNA CASC7 in MCF-7 and MDA-MB-231 cells. (a) The binding site between miR-21-5p and CASC7. (b) The levels of miR-21-5p were examined by RT-qPCR in MCF-7 and MDA-MB-231 cells. (c) The luciferase assay was examined in MCF-7 and MDA-MB-231 cells. (d) The levels of miR-21-5p were examined by RT-qPCR in MCF-7 and MDA-MB-231 cells. (e) The level of miR-21-5p in breast tumor tissues and paracancerous tissues was examined by RT-qPCR. (f) The levels of miR-21-5p were examined by RT-qPCR in MCF10A, MCF-7 and MDA-MB-231 cells. Data are presented as mean ± SD, n = 3. ***P < 0.001