高亚飞,鲁华山,贺世明,高 立,韩海静.Sfrp2通过下调Wnt/β-catenin通路抑制胶质瘤细胞系U251的迁移能力[J].,2021,(16):3007-3010 |
Sfrp2通过下调Wnt/β-catenin通路抑制胶质瘤细胞系U251的迁移能力 |
Sfrp2 Functions as a Suppressor for Gliomas by Suppressing the Wnt/β-catenin Signaling |
投稿时间:2020-12-31 修订日期:2021-01-26 |
DOI:10.13241/j.cnki.pmb.2021.16.002 |
中文关键词: Sfrp2蛋白 Wnt通路 β-catenin 胶质瘤 线粒体 |
英文关键词: Sfrp2 Wnt β-catenin Glioma Mitochondria |
基金项目:国家自然科学基金面上项目(81971186) |
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中文摘要: |
摘要 目的:探讨使用Wnt3a蛋白受体竞争性抑制剂Sfrp2下调Wnt通路的关键蛋白β-catenin的表达对胶质瘤细胞U251线粒体功能以及细胞侵袭能力的影响。方法:使用外源性Sfrp2蛋白处理U251细胞,使用Western Blot技术,Mitotracker线粒体形态学染色,划痕实验观测Sfrp2蛋白对U251细胞Wnt通路的表达,线粒体功能以及细胞迁移能力的影响,并使用GSK-3β抑制剂LiCl上调Wnt通路进一步明确Sfrp2蛋白的作用机制。结果:Sfrp2蛋白可引起Wnt通路的抑制(P<0.05),线粒体分裂(P<0.01)以及细胞迁移能力的下降(P<0.01),而使用LiCl处理后,Wnt通路重现上调(P<0.05),线粒体分裂受到抑制(P<0.05),细胞的迁移能力也再次恢复(P<0.05)。结论:Sfrp2可通过下调Wnt通路引起线粒体分裂进而抑制U251细胞的迁移能力。 |
英文摘要: |
ABSTRACT Objective: To investigate the role of Sfrp2, a protein competing with Wnt3a protein for Wnt ligands, on the invasion ability changing and mitochonadria fission of U251 cells. Methods: Cells were treated with Sfrp2 and WB, Mitotracker stain, and wound healing study were performed to analyze the changing of migration ability and mitochondria fission in U251 cells. The LiCl was added to analyze its underlying mechanism. Results: The pretreatment of Sfrp2 in U251 cells induced the inhibition of Wnt signaling(P<0.05), the decrease of migration ability (P<0.01)and mitochondria fission(P<0.01). Besides, the adding of LiCl before Sfrp2 could abrogate the inhibition of Wnt signaling(P<0.05), the decrease of migration ability (P<0.05)and mitochondria fission(P<0.05). Conclusion: Sfrp2 induced the mitochondria fission and decrease of migration ability in U251 cells in a Wnt signaling dependent manner. |
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