[AKR1B10 promotes proliferation of breast cancer cells by activating Wnt/β-catenin pathway].

Objective To investigate the effect of aldosterone reductase family 1 member B10 (AKR1B10) on breast cancer cell proliferation and its mechanism. Methods AKR1B10 was overexpressed in MCF-7 cells and knocked down in BT-20 cells to establish both AKR1B10 overexpression and knockdown cell lines. The effect of AKR1B10 overexpression and knockdown on breast cancer cell proliferation was examined by CCK-8 assay. Real-time quantitative PCR was performed to detect AKR1B10 mRNA levels in breast cancer tissues and paired normal tissues. Western blot analysis was used to determine the protein levels of AKR1B10, β-catenin, cyclin D1, survivin, c-myc in breast cancer tissues and AKR1B10 overexpression/knockdown breast cancer cell lines. Results The expression of AKR1B10 was higher in breast cancer tissues. With AKR1B10 overexpression in MCF-7 cells, cell proliferation was promoted, and the expression levels of β-catenin, cyclin D1, c-myc and survivin were elevated. Meanwhile, knockdown of AKR1B10 in BT-20 breast cancer cells reduced cell proliferation and the expression levels of β-catenin, cyclin D1, c-myc and survivin. Conclusion AKR1B10 is highly expressed in breast cancer and promotes breast cancer cell proliferation by activating Wnt/β-catenin signaling pathway.