中国神经再生研究(英文版) ›› 2015, Vol. 10 ›› Issue (8): 1251-1257.doi: 10.4103/1673-5374.162757

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

心肌梗死后大鼠旁边缘皮质c-Fos激活:不伴有神经元损伤

  

  • 收稿日期:2015-07-04 出版日期:2015-08-24 发布日期:2015-08-24
  • 基金资助:

    韩国Hallym大学研究基金(01-2012-10)
     

Activation of immediate-early response gene c-Fos protein in the rat paralimbic cortices after myocardial infarction

Ji Yun Ahn1, 2, Hyun-Jin Tae3, Jeong-Hwi Cho4, In Hye Kim4, Ji Hyeon Ahn4, Joon Ha Park4, Dong Won Kim5, Jun Hwi Cho2, Moo-Ho Won4, Seongkweon Hong6, Jae-Chul Lee4, Jeong Yeol Seo5   

  1. 1 Department of Emergency Medicine, Sacred Heart Hospital, College of Medicine, Hallym University, Anyang, South Korea
    2 Department of Emergency Medicine, School of Medicine, Kangwon National University, Chuncheon, South Korea
    3 Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University, Chunchon, South Korea
    4 Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, South Korea
    5 Department of Emergency Medicine, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University, Chuncheon, South Korea
    6 Department of Surgery, School of Medicine, Kangwon National University, Chuncheon, South Korea
  • Received:2015-07-04 Online:2015-08-24 Published:2015-08-24
  • Contact: Jae-Chul Lee, Ph.D. or Jeong Yeol Seo, M.D., Ph.D., anajclee@kangwon.ac.kr or siris94@hanmail.net.
  • Supported by:

    This study was supported by Hallym University Research Fund, No. 01-2012-10.

摘要:

c-Fos是检测中枢神经系统疾病发病机制的生物学标志之一,心肌梗死诱导的大脑旁边缘皮质c-Fos表达变化的报道尚未见。实验应用焦油紫染色、NeuN免疫组化和Fluoro-Jade B染色检测到心肌梗死后大脑旁边缘皮质--扣带回和梨状皮质未见神经元退变。心肌梗死后3d,扣带回和梨状皮质检测到c-Fos免疫阳性细胞,7和14d时阳性细胞数量分别在扣带回和梨状皮质达到高峰,心肌梗死后56d则几乎检测不到。免疫印迹检测的c-Fos蛋白的时空表达与c-Fos免疫反应变化基本一致。表明心肌梗死可引起大脑旁边缘皮质早期反应基因c-Fos出现明显的时空改变,其可能与心肌梗死诱发的神经活性关系。

关键词: 神经再生, 旁边缘皮质, 扣带回, 梨状皮质, c-Fos, 心肌梗死, 神经元退变

Abstract:

c-Fos is a good biological marker for detecting the pathogenesis of central nervous system disorders. Few studies are reported on the change in myocardial infarction-induced c-Fos expression in the paralimbic regions. Thus, in this study, we investigated the changes in c-Fos expression in the rat cingulate and piriform cortices after myocardial infarction. Neuronal degeneration in cingulate and piriform cortices after myocardial infarction was detected using cresyl violet staining, NeuN immunohistochemistry and Fluoro-Jade B histofluorescence staining. c-Fos-immunoreactive cells were observed in cingulate and piriform cortices at 3 days after myocardial infarction and peaked at 7 and 14 days after myocardial infarction. But they were hardly observed at 56 days after myocardial infarction. The chronological change of c-Fos expression determined by western blot analysis was basically the same as that of c-Fos immunoreactivity. These results indicate that myocardial infarction can cause the chronological change of immediate-early response gene c-Fos protein expression, which might be associated with the neural activity induced by myocardial infarction. 

Key words: nerve regeneration, paralimbic cortices, myocardial infarction, c-Fos, cingulate cortex, piriform cortex, immunohistochemistry, western analysis, neural regeneration