与ALS相关的C9orf72二重复物通过调节BCL2-BECN1相互作用来抑制饥饿诱导的自
Shiqiang Xu1, Qilian Ma1,2, Junwen Shen1
1Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China.
Acta pharmaceutica Sinica. B
|May 27, 2024
概括
来自C9orf72基因突变的二重复 (DPR) 抑制了细胞的关键过程 - - 自. 这种功能障碍会损害有毒蛋白质的清除,导致ALS和FTD的神经退行.
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:
- 自功能障碍与ALS和FTD等神经退行性疾病有关.
- 导致重复RNA扩张的C9orf72基因突变是ALS和FTD的主要遗传因素.
- 这些扩张导致二重复 (DPR) 蛋白,但它们对自的作用尚不清楚.
研究的目的:
- 为了研究C9orf72衍生的DPRs对自的影响.
- 阐明DPRs影响自的分子机制.
- 探索针对C9orf72相关神经退行性疾病的自的潜在治疗策略.
主要方法:
- 研究了聚GR和聚PR (富含氨酸的DPRs) 对细胞模型中饥饿诱导的自的影响.
- 研究了BCL2和BECN1/Beclin 1.之间的相互作用.
- 评估了dprs的神经毒性影响和药理自干预的影响.
主要成果:
- 富含氨酸的DPRs (多GR和多PR) 显著抑制饥饿诱导的自.
- DPRs通过抑制BCL2酸化来增强BCL2-BECN1相互作用,从而损害蛋白质聚合物的自清除.
- 与SW063058之间的BCL2-BECN1相互作用的药理学干扰减少了C9orf72 DPR诱导的神经毒性.
结论:
- C9orf72 DPRs有助于神经退行性疾病中的自功能障碍.
- 通过DPRs抑制自会加剧神经毒性.
- 针对BCL2-BECN1相互作用来调节自,为C9orf72相关的ALS/FTD提供了潜在的治疗途径.
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