Abstract
Microglial activation plays a vital role in the pathogenesis of white matter lesions (WMLs) during chronic cerebral hypo perfusion. Autophagy has been associated with both microglia survival and cell death. Yet, the role of autophagy during microglial activation in chronic cerebral ischemia is still unknown. We used a chronic cerebral hypoperfusion model by permanent stenosis of bilateral common carotid artery in mice to study microglial activation and autophagy. However, the autophagy inhibitor (3-methyladenine) could attenuate microglial autophagic activation, decrease white matter lesions, and improve working memory during chronic cerebral hypoperfusion in mice. In conclusion, chronic cerebral hypoperfusion that leads to microglial activation and autophagy induction exacerbates white matter lesions and cognitive deficits in mice. Our findings represent a potential novel target for chronic cerebral hypoperfusion therapy.
Keywords: Autophagy, cerebral, cognitive deficits, hypoperfusion, microglia, white matter lesions.
Current Neurovascular Research
Title:Microglial Activation with Reduction in Autophagy Limits White Matter Lesions and Improves Cognitive Defects During Cerebral Hypoperfusion
Volume: 11 Issue: 3
Author(s): Zhao Yang, Nan Zhang, Hanchao Shen, Chuangan Lin, Li Lin and Bangqing Yuan
Affiliation:
Keywords: Autophagy, cerebral, cognitive deficits, hypoperfusion, microglia, white matter lesions.
Abstract: Microglial activation plays a vital role in the pathogenesis of white matter lesions (WMLs) during chronic cerebral hypo perfusion. Autophagy has been associated with both microglia survival and cell death. Yet, the role of autophagy during microglial activation in chronic cerebral ischemia is still unknown. We used a chronic cerebral hypoperfusion model by permanent stenosis of bilateral common carotid artery in mice to study microglial activation and autophagy. However, the autophagy inhibitor (3-methyladenine) could attenuate microglial autophagic activation, decrease white matter lesions, and improve working memory during chronic cerebral hypoperfusion in mice. In conclusion, chronic cerebral hypoperfusion that leads to microglial activation and autophagy induction exacerbates white matter lesions and cognitive deficits in mice. Our findings represent a potential novel target for chronic cerebral hypoperfusion therapy.
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Cite this article as:
Yang Zhao, Zhang Nan, Shen Hanchao, Lin Chuangan, Lin Li and Yuan Bangqing, Microglial Activation with Reduction in Autophagy Limits White Matter Lesions and Improves Cognitive Defects During Cerebral Hypoperfusion, Current Neurovascular Research 2014; 11 (3) . https://dx.doi.org/10.2174/1567202611666140520124407
DOI https://dx.doi.org/10.2174/1567202611666140520124407 |
Print ISSN 1567-2026 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5739 |
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