Objective To explore the potential mechanism of miR - 125a - 5p in inhibiting the invasion and metastasis of breast cancer cells. Methods The expression level of miR - 125a - 5p in tissues and cells was detected by real - time fluorescence quantitative PCR; the overexpression plasmid was transfected into MDA231 by transient transfection technology, and the Transwell invasion assay was used to detect the effect of miR - 125a - 5p on the invasion of cells in each group; Western blot was used to detect the phosphorylation of Akt in cells of each group, as well as the expression levels of matrix metalloproteinase 2 (MMP - 2) and MMP - 9. Results Through the relevant detection of clinical specimens, it was found that the expression of miR - 125a - 5p in breast cancer tissues...
目的探讨miR-125a-5p抑制乳腺癌细胞侵袭与转移的潜在机制。 方法采用实时荧光定量PCR检测组织及细胞中miR-125a-5p的表达量;利用瞬时转染技术将过表达质粒转染到MDA231中,Transwell侵袭实验检测miR-125a-5p对各组细胞侵袭的影响;Western blot检测各组细胞Akt的磷酸化情况,以及基质金属蛋白酶2(matrix metalloproteinase 2, MMP-2)、MMP-9的表达量。 结果通过临床标本的相关检测发现,miR-125a-5p在乳腺癌组织中的表达