摘要
目的:观察α-synuclein转基因细胞内α-synuclein过表达对细胞超微结构的影响。方法:Lipofectamine法转染SHSY5Y细胞,用G418对转基因细胞进行筛选,免疫荧光细胞化学检测α-synuclein表达,电子显微镜观察转基因细胞超微结构的改变。结果:转基因细胞内出现大小不等、边界明显的自体吞噬体并伴有线粒体结构紊乱。结论:α-synuclein过表达可致细胞出现自体吞噬现象。
Objective: To observe the influence of overexpression of α-synuclein on the ultrastructure of culturedSH-SY5Y cells. Methods: The plasmid of α-synuclein-pcDNA3 was transfected into SH-SY5Y cells with lipofectamine. The expression of α-synuclein was determined by anti-α-synuclein immunocytochemistry. Ultrastructural alterations in the transfected cells were determined with electron microscopy. Results: α-synuclein overexpression in the cells resulted in the alteration of mitochondrial ultrastructure accompanied by the increment of lysosomes number and the accumulation of autophagic-vesicular structures. Conclusion:Overexpression of α-synuclein can lead to autophagy in SH-SY5Y cells in vitro.
出处
《解剖学杂志》
CAS
CSCD
北大核心
2005年第3期258-260,共3页
Chinese Journal of Anatomy
基金
国家重点基础研究规划("973"计划)课题(G1999054008,G2000057005)
国家自然科学基金(30240055)
北京市自然科学基金(70022005)
河北省自然科学基金(C2004000689)