晚期糖基化终产物受体和低密度脂蛋白受体相关蛋白在慢性脑血流低灌注大鼠皮层和海马的改变

刘宏;邢安凤;刘国贞;李良

解剖学报 ›› 2009, Vol. 40 ›› Issue (2) : 204-210.

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解剖学报 ›› 2009, Vol. 40 ›› Issue (2) : 204-210. DOI: 10.3969/j.issn.0529-1356.2009.02. 007
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晚期糖基化终产物受体和低密度脂蛋白受体相关蛋白在慢性脑血流低灌注大鼠皮层和海马的改变

  • 刘宏1 ;邢安凤2 ;刘国贞1 ;李良1*
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Changes of RAGE and LRP-1 in the cortex and hippocampus of rats with chronic cerebral hypoperfusion

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Abstract

Objective To investigate the change of receptor for advanced glycation and products(RAGE) and low-density lipoprotein receptor-related protein 1(LRP-1) in rats’ brain under the condition of chronic cerebral hypoperfusion. Methods Chronic cerebral blood hypoperfusion rat model made by bilateral common carotid artery permanent ligation was used, immunohistochemistry and Western blotting were employed to test the distribution and levels of RAGE and LRP-1 in cortex and hippocampus. Results Compared to controls, the immunoreactivity of RAGE was increased in microvascular endothelium from 10 days after hypoperfusion and decreased in neurons from 30 days after hypoperfusion in cortex and hippocampus, whereas the expression of LRP-1 was decreased in endothelium and increased in neurons. Western blotting results showed that levels of RAGE in cortex and hippocampus began to increase from 10 days after hypoperfusion significantly, while LRP-1 was significantly increased from 180 days after hypoperfusion. Conclusion Chronic cerebral hypoperfusion could lead to the changes of distribution of RAGE and LRP-1 between neuron and microvascular and increased expression of both protein, which implies that chronic cerebral hypoperfusion may play a very important role in early pathogenesis of Alzheimer’s disease (AD).

关键词

晚期糖基化终产物受体 / 低密度脂蛋白受体相关蛋白1 / 慢性脑血流低灌注 / β-淀粉样肽 / 阿尔茨海默病 / 免疫组织化学 / 免疫印迹法 / 大鼠

Key words

P>Receptor for advanced glycation end products / Low-density lipoprotein receptor-related protein 1 / Chronic cerebral hypoperfusion / β-amyloid / Alzheimer’s disease / Immunohistochemistry / Western blotting / Rat/P>

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刘宏;邢安凤;刘国贞;李良. 晚期糖基化终产物受体和低密度脂蛋白受体相关蛋白在慢性脑血流低灌注大鼠皮层和海马的改变[J]. 解剖学报. 2009, 40(2): 204-210 https://doi.org/10.3969/j.issn.0529-1356.2009.02. 007
Changes of RAGE and LRP-1 in the cortex and hippocampus of rats with chronic cerebral hypoperfusion[J]. Acta Anatomica Sinica. 2009, 40(2): 204-210 https://doi.org/10.3969/j.issn.0529-1356.2009.02. 007
中图分类号: R741   

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