详细信息
文献类型:期刊文献
中文题名:β-淀粉样蛋白的体内清除机制
英文题名:Mechanisms on Clearance of Amyloid-β Peptide In vivo
作者:洪亮[1,2];黄汉昌[1,2];姜招峰[1,2];刘媛媛[2]
第一作者:洪亮
机构:[1]北京联合大学功能食品科学技术研究院;[2]北京联合大学应用文理学院
第一机构:北京联合大学生物化学工程学院功能食品科学技术研究院|北京联合大学应用文理学院
年份:2013
期号:2
起止页码:169-173
中文期刊名:生命科学研究
外文期刊名:Life Science Research
收录:CSTPCD;;北大核心:【北大核心2011】;CSCD:【CSCD_E2013_2014】;
基金:国家自然科学基金面上资助项目(31071512);北京市"启明星"大学生科技创新资助项目(1201311417027)
语种:中文
中文关键词:阿尔茨海默病;β-淀粉样蛋白;清除;降解;吞噬
外文关键词:alzheimer disease; amyloid-β (Aβ); clearance; degradation; phagocytosis
摘要:阿尔茨海默病(alzheimer disease,AD)是一种神经退行性疾病,β-淀粉样蛋白(amyloid-β,Aβ)被认为是其发病的中心分子.体内Aβ产生和清除的平衡在阿尔茨海默病的病理过程中扮演了重要的角色.人体清除Aβ的机制包括多种途径:通过血脑屏障、血脑脊液屏障等转运出脑;在脑脊液及血液等外周系统降解;在脑内通过水解等方式清除.细胞外Aβ既可在胞外通过水解酶的降解作用被降解,也可被吞噬入细胞后通过自噬作用、泛素-蛋白酶体途径被最终水解.能够增强体内固有的Aβ清除机制的药物和方法将对AD的治疗起到积极作用.
Alzheimer disease (AD) is a neurodegenerative disease, and amyloid-β (Aβ) plays a central role during the pathogenesis process. The fine-tuning balance between Aft production and clearance is particularly important for late-onset AD. There are several mechanisms on Aβ's clearance in human, including removal from the brain via blood-brain barrier and blood-cerebrospinal fluid barrier, and degradation in peripheral system degradation inside the brain. In brain, extracellular Aft could either be degraded by a series of Aft-degrading enzymes or be phagoeytosed and hydrolyzed via autophogy or ubiquitin-proteasomal pathway. Drugs and therapies that could enhance the cleaning of Aft would lead to improve the treatment of this disease.
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