Purpose To investigate the effect of silencing of CD98hc on proliferation,migration and invasion of MDA-MB-231 breast cancer cells.Methods RNA interfere technology was used to silence CD98hc in MDA-MB-231 cells.MDA-MB-231 cells (CD98hc-shRNA) with stable low expression of CD98hc and Vector control was obtained.Western blot and qRT-PCR were used to verify the down-regulation of CD98hc.MTT assay was used to test the cell proliferation.Transwell migration and invasion experiment were used to assay cell migration and invasion.Results The expression levels of CD98hc was down-regulated by CD98hc-shRNA in the MDA-MB-231 breast cancer cells.Compared to that of blank cells (0.706 ± 0.013),vector control (0.724 ± 0.018),the cell proliferation potency of CD98hc-shRNA cells (0.580-0.035) was significantly inhibited (P ＜ 0.05),and the cell migration and invasion potency also were inhibited (P ＜ 0.05),there is on significant different between blank cells and vector control (P ＜ 0.05).Conclusion CD98hc might be involved in the regulation of breast cancer cell biological behaviors.%目的 观察沉默CD98hc对乳腺癌MDA-MB-231细胞体外增殖、迁移及侵袭的影响.方法 应用RNA干扰技术沉默乳腺癌MDA-MB-231细胞CD98hc的表达,筛选并获得稳定CD98hc低表达的MDA-MB-231细胞株(CD98 hc-shRNA)及对照组细胞(Vector).应用Western blot及qRT-PCR技术鉴定CD98hc的表达;应用MTT细胞增殖实验检测细胞增殖能力的改变;细胞迁移侵袭实验检测细胞迁移和侵袭能力的改变.结果 CD98hc-shRNA下调乳腺癌MDA-MB-231细胞CD98hc的表达,与空白组(0.706 ±0.013)、对照组(0.724 ±0.018)相比,实验组(0.580±0.035)细胞的增殖能力明显下调(P＜0.05),且迁移和侵袭能力也显著受抑制(P＜0.05),空白组与对照组差异无统计学意义(P＞0.05).结论 CD98hc可能参与乳腺癌细胞生物学行为的调控.
展开▼
