中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (11): 1707-1711.doi: 10.3969/j.issn.2095-4344.2015.11.013

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

携带端粒酶反转录酶基因siRNA慢病毒载体对星形胶质细胞凋亡的影响

梁 亮1,徐 韬1,宋 扬2,盛伟斌1   

  1. 1新疆医科大学第一附属医院脊柱外科,新疆维吾尔自治区乌鲁木齐市 830054;2解放军第四军医大学唐都医院骨科,陕西省西安市 710038
  • 修回日期:2014-12-23 出版日期:2015-03-12 发布日期:2015-03-12
  • 通讯作者: 盛伟斌,博士、教授、主任医师、博士生导师,新疆医科大学第一附属医院脊柱外科,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:梁亮,男,1984年生,河南省周口市人,新疆医科大学第一附属医院脊柱外科在读硕士。
  • 基金资助:

    新疆维吾尔自治区自然科学基金资助项目面上项目(2014211C026);新疆维吾尔自治区自然科学基金资助项目青年基金(2014211C072)

siRNA lentiviral vectors carrying telomerase reverse transcriptase gene hasten astrocytes apoptosis

Liang Liang1, Xu Tao1, Song Yang2, Sheng Wei-bin1   

  1. 1Department of Spine Surgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China; 2Department of Orthopedics, Tang Du Hospital, Fourth Military Medical University of PLA, Xi’an 636600, Shaanxi Province, China
  • Revised:2014-12-23 Online:2015-03-12 Published:2015-03-12
  • Contact: Sheng Wei-bin, M.D., Professor, Chief physician, Doctoral supervisor, Department of Spine Surgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Liang Liang, Studying for master’s degree, Department of Spine Surgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the Natural Science Foundation of Xinjiang Uygur Autonomous Region, No. 2014211C026; the Natural Science Foundation for the Youth of Xinjiang Uygur Autonomous Region, No. 2014211C072

摘要:

背景:端粒酶反转录酶对端粒酶的激活和活化有重要的作用,利用端粒酶反转录酶的慢病毒载体抑制星形胶质细胞表达对脊髓损伤修复的影响鲜见报道。

目的:利用靶向大鼠脊髓源星形胶质细胞端粒酶反转录酶基因的慢病毒载体转染大鼠星形胶质细胞,并观察端粒酶反转录酶基因的慢病毒载体对星形胶质细胞凋亡的影响。
方法:原代及传代培养大鼠星形胶质细胞。实验分为端粒酶反转录酶基因siRNA慢病毒载体转染组、单纯慢病毒转染组和空白组,转染后并测其转染率,且在转染后的不同时间段测量大鼠星形胶质细胞的凋亡情况。

结果与结论:端粒酶反转录酶基因siRNA慢病毒载体转染组及单纯慢病毒转染组对星形胶质细胞的转染率达85%-90%。免疫荧光染色及流式细胞仪检测显示,端粒酶反转录酶基因siRNA慢病毒载体转染组在转染后24-48 h细胞凋亡率达50%-60%。在单纯慢病毒转染组及空白组细胞凋亡率并无显著改变。结果说明,携带端粒酶反转录酶基因siRNA慢病毒载体可促进大鼠脊髓星形胶质细胞凋亡。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 组织工程, 端粒酶, 端粒酶反转录酶, 慢病毒载体, RNA干扰, 星形胶质细胞, 转染, 凋亡, 脊髓损伤, 胶质瘢痕, 新疆维吾尔自治区自然科学基金

Abstract:

BACKGROUND: Telomerase reverse transcriptase plays an important role in telomerase activation, and lentiviral vectors carrying human telomerase reverse transcriptase that can inhibit astrocyte expression are rarely reported to have effects on spinal cord injury.

OBJECTIVE: To transfect rat astrocytes with telomerase reverse transcriptase gene lentiviral vectors and to observe the effect of telomerase reverse transcriptase gene lentiviral vectors on apoptosis of astrocytes.
METHODS: Astrocytes from rats were subject to primary culture and subculture, and then transfected with siRNA lentiviral vector carrying telomerase reverse transcriptase gene (siRNA transfection group), simple lentiviral vector (lentiviral vector group) and nothing (blank group), respectively. Then, the transfection efficiency and apoptosis in different time periods after transfection were determined.
RESULTS AND CONCLUSION: The transfection efficiency was up to 85%-90% after siRNA lentiviral vector and simple lentiviral vector transfection. The apoptosis rate of astrocytes in the siRNA transfection group was 50%-60% at 24-48 hours after transfection, but there was no significant change in the other two groups. These findings suggest that siRNA lentiviral vectors carrying telomerase reverse transcriptase gene can accelerate astrocytes apoptosis.


中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: Tissue Engineering, Genes, Cells, Spinal Cord Injuries

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