通过CAP1-依赖的ADAM10翻译,CPNE7调节氨基基基因的产生
Jie Yang1,2, Ya-Lan Pu3,4, Qiu-Lin Pan3
1Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
在阿尔茨海默病 (AD) 模型中,copine-7 (CPNE7) 蛋白质水平下降. 通过通过CAP1蛋白增强ADAM10活性,CPNE7降低了粉样β (Aβ),为阿尔茨海默病提供了一个新的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 粉样质斑块的积累是阿尔茨海默病 (AD) 的标志.
- 一个α-分泌酶的ADAM10通过处理APP.在非粉原性途径中发挥着至关重要的作用.
- 在阿尔茨海默氏症的发病过程中,copine-7 (CPNE7) 的功能在很大程度上是未知的.
研究的目的:
- 为了研究CPNE7在阿尔茨海默病中的作用.
- 阐明CPNE7影响粉样β (Aβ) 生产的机制.
- 为了确定参与AD病理的CPNE7的下游目标.
主要方法:
- 在AD小鼠模型 (APP/PS1) 和细胞培养中量化CPNE7蛋白水平.
- 评估Aβ水平和ADAM10活动对CPNE7调制的反应.
- 转录组分析以识别CPNE7调节的基因.
- 调查CPNE7,CAP1和ADAM10监管之间的相互作用.
主要成果:
- 在APP/PS1小鼠和APP表达细胞中,CPNE7蛋白水平显著下降.
- 通过转化机制,CPNE7通过增强ADAM10活动来降低Aβ水平.
- 在CPNE7上调节循环酶相关的行为细胞骨架调节蛋白1 (CAP1) 的表达.
- CAP1通过结合其5'未翻译区域 (5'UTR) 来调节ADAM10的翻译.
结论:
- CPNE7-CAP1轴在调节ADAM10翻译和AD中的粉原性通路方面至关重要.
- 通过通过ADAM10.10促进非氨基原性处理,CPNE7的神经保护作用通过促进非氨基原性处理进行中介.
- CAP1的RNA结合活性被强调为这个调节途径的关键组成部分,为AD提供了潜在的治疗点.
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