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Updated: Jul 12, 2025

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在海马体中,WDR23调解NRF2蛋白质稳定和细胞保护能力

Jiahui Liu, Chatrawee Duangjan, Ronald W Irwin

bioRxiv : the preprint server for biology

|October 24, 2023

概括

研究人员发现,在小鼠中去除WDR23蛋白质会影响大脑衰老和神经退行性疾病的途径. 这一发现为开发针对阿尔茨海默氏症和帕金森症等疾病的WDR23-NRF2信号传导的疗法开辟了新的途径.

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
遗传学是一个遗传学.

背景情况:

神经炎症和蛋白质聚合驱动大脑衰老和神经退行性疾病.
CUL4-DDB1基质受体WDR23在大脑中的作用尚未完全理解.
NRF2/NFE2L2是细胞保护和抗氧化反应的关键转录因子.

研究的目的:

为了研究WDR23在海马中的功能.
探索 WDR23 损失对与年龄相关的行为和神经保护的影响.
为了确定WDR23和NRF2/NFE2L2信号之间的关系.

主要方法:

创建了一个全球WDR23淘汰赛鼠标模型 (Wdr23KO).
在Wdr23KO小鼠中评估与年龄相关的海马依赖行为.
分析了NRF2/NFE2L2蛋白质稳定性和RNA转录水平.

主要成果:

Wdr23KO小鼠表现出与年龄相关的改变行为.
失去WDR23导致NRF2/NFE2L2蛋白稳定.
在Wdr23KO小鼠中观察到NRF2/NFE2L2受调节的抗氧化基因的表达增加.
在雄性和雌性Wdr23KO小鼠之间注意到了行为差异.

结论:

在小鼠海马体中,WDR23是NRF2/NFE2L2稳定的关键调节者.
针对WDR23-NRF2信号传输,为神经退行性疾病提供了潜在的治疗策略.
缺少WDR23会影响与年龄相关的行为,性别有所不同.

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