基础医学与临床 ›› 2013, Vol. 33 ›› Issue (2): 215-218.

• 研究论文 • 上一篇    下一篇

PGC-1, NRF-2α和mtTFA在视觉剥夺大鼠视皮质内的表达下调

陈翔1,赵晓2   

  1. 1. 解放军总医院眼科
    2. 解放军总医院肿瘤内科
  • 收稿日期:2012-10-26 修回日期:2012-12-19 出版日期:2013-02-05 发布日期:2013-01-25
  • 通讯作者: 陈翔 E-mail:chenxianghoo@163.com

Down of PGC-1, NRF-2α and mtTFA Expressions in the Rat Visual Cortex after Visual Deprivation

  • Received:2012-10-26 Revised:2012-12-19 Online:2013-02-05 Published:2013-01-25

摘要: 目的 观察核呼吸因子-2α(NRF-2α)在正常发育及视觉剥夺大鼠视皮质内的表达。方法 构建视觉剥夺大鼠模型,利用半定量PCR和免疫印迹的方法检测过氧化物酶体增生激活受体γ协同刺激因子(PGC-1)、 NRF-2α和线粒体转录因子A(mtTFA)在视皮质内的表达。结果 视觉剥夺大鼠视皮质内PGC-1、NRF-2α和mtTFA表达较正常组明显降低(P < 0.05)。结论NRF-2α的基因转录及蛋白表达水平依赖于正常视觉信号的刺激,异常的视觉经验使视皮质神经元兴奋性降低,造成NRF-2α表达的明显下调。

关键词: 核呼吸因子-2α, 视觉剥夺, 视皮层

Abstract: Objective Observed nuclear respiratory factor-2α(NRF-2α) expression in the rat visual cortex in the normal development and visual deprivation. Methods To build visual deprivation rat model using quantitative PCR and Western blot detection PPAR γ coactivator-1(PGC-1), NRF-2α and mitochondrial transcription factor (mtTFA) expressed in the rat visual cortex. Results Data shows that of visual deprivation rat model resulted in marked reduction of NRFs’ RNA and protein expression (P < 0.05). Conclusion NRF-2α gene transcription and protein expression levels depend on the stimulation of normal visual signal, Our results proved evidence that visual deprivation has much influence on mitochondria function,resulting in a significantly down-regulated expression of NRF-2α.

Key words: NRF-2α, visual deprivation, visual cortex

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