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内皮CD2AP的损失会导致性别依赖的脑血管功能障碍

Milène Vandal¹, Adam Institoris², Louise Reveret³

¹Departments of Clinical Neurosciences, Cell Biology and Anatomy, and Biochemistry and Molecular Biology, Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1 Canada.

|February 1, 2025

概括

CD2相关蛋白 (CD2AP) 的遗传变异增加了阿尔茨海默病的风险. 大脑血管中CD2AP的损失会损害记忆和血液流动,这表明阿尔茨海默病的新型,性别特定的治疗点.

科学领域:

神经科学是一个神经科学.
血管生物学血管生物学
遗传学是一个遗传学.

背景情况:

CD2相关蛋白 (CD2AP) 中的多态性与阿尔茨海默病 (AD) 的风险增加有关.
通过CD2AP影响AD病变的确切机制,特别是在脑血管系统中,尚未完全理解.

研究的目的:

在阿尔茨海默病的背景下,研究CD2AP在大脑血管内皮细胞中的作用.
探索CD2AP缺乏对脑血管功能和认知表现的功能性影响.
为了确定潜在的性别特异性治疗策略,针对AD中的CD2AP.

主要方法:

对AD患者大脑血管中CD2AP表达的分析.
在雄性小鼠的大脑血管内皮细胞中,CD2AP的基因下调.
在小鼠中评估认知功能,脑血流,神经血管合和血管对粉样β (Aβ) 的反应.
药理干预向内甲蛋白-1受体A和里林糖蛋白信号传递.

主要成果:

大脑血管中减少的CD2AP与阿兹海默症患者的认知能力下降相关.
在雄性小鼠中降低CD2AP的调节会损害记忆力,改变休息和活动诱导的大脑血流,并影响壁细胞功能.
CD2AP缺乏导致异常的,取决于性别的血管对Aβ的反应;内甲素-1受体A的对抗性仅在男性中显示部分救援.
瑞林糖蛋白治疗改善了大脑的血液流动,并保护雄性小鼠免受Aβ毒性.

结论:

内皮CD2AP对于维持正常的脑血管功能和认知健康至关重要.
CD2AP 缺乏有助于与AD相关的血管缺陷以性别依赖的方式.
向内皮CD2AP为新的,性别特定的阿尔茨海默病治疗提供了有希望的途径.

关键词:

这就是阿尔茨海默病的原因.在 ApoER2/LRP8 中使用.亚博体育在线娱乐亚博体育在线娱乐 CD2AP CD2AP CD2AP CD2AP CD2AP CD2AP CD2AP CD2AP CD2AP CD2AP CD2AP CD2AP CD2AP CD2AP CD2AP 大脑内皮细胞是脑内皮细胞.大脑血管功能大脑血管功能末端蛋白-1-1的使用.壁画细胞细胞壁画细胞里林林是不是可以说的.性二态性质性质二态性质性质二态性质

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