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乌比基特异性酶11倒置通过调节线粒体功能障碍和神经元损伤来减缓亨廷顿病的进展,这取决于PTEN介导的AKT通路

Bai Gao¹, Yuchen Jing², Xi Li²

¹Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China.

Molecular medicine (Cambridge, Mass.)

|January 8, 2025

概括

沉默USP11通过恢复线粒体功能和通过PTEN抑制激活AKT通路来缓解亨廷顿病 (HD) 病理. 这表明USP11可能是HD的潜在治疗点.

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
遗传学遗传学是一种遗传学.

背景情况:

亨廷顿氏病 (HD) 的特征是线粒体功能障碍和神经元损伤.
乌比基特异性酶11 (USP11),一种二基化酶,在疾病发病过程中没有明确的作用.

研究的目的:

研究USP11在亨廷顿病中的作用.
探索USP11作为对HD的潜在治疗点.

主要方法:

使用具有USP11特异性的shRNA的腺相关病毒 (AAV) 在R6/1高发症模型小鼠和PC12细胞中用于使USP11沉默.
使用无标签蛋白质组学和共免疫沉 (Co-IP) 来确定USP11的目标和相互作用.
在体外和体外模型被用来评估USP11敲击对HD病理学的影响.

主要成果:

在R6/1小鼠的条纹体中,USP11表达因年龄而上调.
在HD模型中,USP11沉默改善了运动活动,空间记忆,减少了条状缩,并恢复了线粒体功能.
USP11的淘汰促进了PTEN的无化,激活了AKT通路,PTEN的过度表达逆转了这些效应.

结论:

通过抑制PTEN和激活AKT通路,USP11 Knockdown保护神经元免受氧化应激,并减轻HD的进展.
USP11-PTEN-AKT信号通路代表了亨廷顿病的新型治疗点.

关键词:

亨廷顿病 (HD) 是一种疾病.线粒体中的线粒体.神经元的亡是神经元的亡.酸酶和张素同类物 (PTEN)乌比基特异性化酶11 (USP11) 是一种

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