中文摘要：

目的 ：探讨滑膜素（synoviolin）在乳腺癌组织中的表达情况及其对乳腺癌细胞MCF-7增殖和迁移能力的影响。方法 ：通过Western blot、免疫组织化学染色及免疫组织芯片技术检测乳腺癌组织中滑膜素的表达水平;在乳腺癌细胞MCF-7中利用腺病毒过表达滑膜素,并以划痕实验、Transwell迁移实验、CCK-8细胞增殖试剂盒等检测其对于乳腺癌细胞MCF-7迁移和增殖能力的影响。结果：滑膜素在乳腺癌组织中的表达水平明显低于相应癌旁组织;过表达滑膜素能抑制乳腺癌细胞MCF-7的增殖和迁移能力;过表达滑膜素能抑制乳腺癌细胞MCF-7发生上皮-间质转化。结论：滑膜素在乳腺癌组织中低表达,可能与抑制乳腺癌细胞的迁移和增殖能力密切相关。

英文摘要：

Objective：To investigate the synoviolin expression in breast cancer tissues and its effects on the proliferation and migration of breast cancer cell line MCF-7. Methods：The expression of synoviolin in breast cancer tissues was detected by Western blotting and immunohistochemical staining. The proliferation and migration of MCF-7 ceils were detected by CCK-8 kit assay, wound healing assay,and Transwell migration assay. The overexpression of synoviolin in MCF-7 cells was performed by adenoviral vector transfection. Results：The expression of synoviolin in breast cancer tissue was decreased than that of the corresponding peritumoral tissues;Overexpression of synoviolin inhibited the proliferation and migration as well as epithelial-mesenchymal transition （EMT） of the MCF-7 breast cancer cells. Conclusion：Down-regulation of synoviolin in patients with breast cancer may play a critical role in the proliferation and migration of breast cancer.