实验动物与比较医学 ›› 2013, Vol. 33 ›› Issue (4): 301-305.DOI: 10.3969/j.issn.1674-5817.2013.04.011

• 论著 • 上一篇    下一篇

裸鼹鼠与C57BL/6小鼠自噬调节的比较研究

林丽芳1, 赵懿宁2, 赵善民1, 汤球1, 孙伟1, 张璐1, 袁子彦1, 徐晨1, 崔淑芳1   

  1. 1.第二军医大学实验动物中心, 上海 200433;
    2.上海市杨浦区精神卫生中心, 上海 200090
  • 收稿日期:2013-06-19 出版日期:2013-08-25 发布日期:2013-08-25
  • 作者简介:林丽芳(1986-),女,硕士研究生。E-mail:linlifang2012@126.com。
  • 基金资助:
    上海市科技发展基金编号(11140901700及 12140900200)

Comparative Study on Autophagy Regulation between Naked Mole Rat and C57BL/6 Mouse

LIN Li-fang1, ZHAO Yi-ning2, ZHAO Shan-min1, XU Chen1, CUI Shu-fang1   

  1. 1. Laboratory Animal Center of the Second Military Medical University,Shanghai 200433, China;
    2. Yangpu District Mental Health Center of Shanghai,Shanghai 200090,China
  • Received:2013-06-19 Online:2013-08-25 Published:2013-08-25

摘要: 目的 比较裸鼹鼠与小鼠的自噬调节,以期为裸鼹鼠高自噬、抗癌、衰老缓慢等生物学特性的研究提供参考。方法 利用电镜技术和蛋白印迹检测新生裸鼹鼠和C57BL/6小鼠肝脏和肺脏组织的自噬水平。自噬干扰裸鼹鼠成纤维细胞和小鼠成纤维细胞,24、48、72 h CCK-8细胞计数法检测细胞的增殖情况,蛋白印迹检测各组细胞各个时间点Beclin 1的表达水平。结果 与C57BL/6小鼠比较,裸鼹鼠组织的LC3B表达显著较高。裸鼹鼠细胞对自噬抑制剂3-MA具有一定的耐药性, 自噬诱导剂雷帕霉素对裸鼹鼠细胞的增殖抑制显著高于小鼠细胞。结论 裸鼹鼠组织具有高自噬水平, 应对外界的自噬抑制压力时, 裸鼹鼠细胞的自身调节能力明显高于C57BL/6小鼠。

关键词: 裸鼹鼠, C57BL/6小鼠, 自噬调节, 比较研究

Abstract: Objective A comparative study between naked mole rat and C57BL/6 mouse on autophagy regulation is conducted, providing a reference for the research of mechanism in high autophagy, anti-cancer, slow aging of NMR. Methods Electron microscopy and western blotting are use to detect the activtity of autophagy in the liver and lung tissue of newborn naked mole rat and C57BL/6. Reagents interfere the autophagy level of fibroblasts derived from naked mole rat and mouse. The cell number is tested after 24, 48, 72 hours by CCK-8 kit. Meanwhile, expression of Beclin 1 at each time point is detected by western blotting. Results Compared with mice, the naked mole rat tissue have significantly higher LC3B expression. The NMR cells have a certain amount of resistance from 3-MA. Rapamycin’s proliferation inhibition on NMR-S(fibroblasts derived from skin of naked mole rats)was significantly greater than that of mouse cells. Conclution NMR tissue possess a high autophagy, Cells from NMR have greater ability of self-regulation under extraneous autophagy inhibition, compared to C57BL/6.

Key words: Naked mole rat, C57BL/6 mouse, Autophagy regulation, Comparative study

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