Figure 3. Overexpression of circ_0000515 expedited BC cell proliferation, migration and aggressiveness. After the transfection of overexpressing plasmid into BC cells: (A) qRT-PCR assay exposed circ_0000515 expressions. (B, C) The multiplication of BC cells was under the determination of CCK-8 assay. (D, E) Transwell assay ensured the analysis on migration and invasion of BC cells. **P<0.01 and ***P<0.001.