MAC30 knockdown involved in the activation of the Hippo signaling pathway in breast cancer cells.

This study was carried out to determine the roles and the mechanisms of MAC30 in breast cancer. We used our own data and public database to analyze the MAC30 mRNA and protein levels in breast cancer tissues. In addition, we established MAC30 knockdown breast cancer cells using MAC30 siRNA. The roles of MAC30 were detected by using Soft agar assay, annexinV-FITC/PI double staining, and Transwell assay. Western blotting was used to analyze the potential mechanism(s) of MAC30 in these cells. We found that MAC30 mRNA and protein were higher in the cancer tissues compared to the matched normal tissues. MAC30 expression was associated with tumor size, tumor differentiation and ER status. Overall survival rate of the patients with low MAC30 expression was obviously higher than the ones with high expression. The apoptotic ratio was lower in MDA-MB-231 and MDA-MB-157 cells with MAC30 expression. By Western blot analysis, we found that increased levels of phosphorylated YAP1, MST1, and LATS1 after MAC30 siRNA transfection in these two cells. In summary, we demonstrate that MAC30 knockdown is involved in the activation of the Hippo signaling pathway. PMID: 29990302 [PubMed - as supplied by publisher]
Source: Biological Chemistry - Category: Chemistry Tags: Biol Chem Source Type: research