通过分子伴侣来调节生理和病理凝聚物
Nadeen Akaree1, Valentina Secco2, Flonia Levy-Adam1
1Department of Biochemistry, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
The FEBS journal
|January 5, 2025
概括
压力颗粒 (SGs) 和其他生物分子凝聚物在细胞压力和像ALS/FTD这样的疾病中起作用. 异常的SG可能会播种病理性蛋白质聚合物,伴侣会调节生理和病理凝聚物,以进行潜在的疾病干预.
科学领域:
- 细胞生物学 细胞生物学
- 生物化学 生物化学
- 神经科学是一个神经科学.
背景情况:
- 生物分子凝聚物,包括应力颗粒 (SGs),是细胞功能至关重要的动态无膜.
- 在细胞应激过程中,SGs短暂地形成,保护mRNA,并含有与神经退行性疾病相关的聚合性蛋白质,如肌缩侧面硬化症 (ALS) 和前性痴呆症 (FTD).
- 无法拆卸的异常SG可能会播种病态蛋白质聚合物,构成ALS/FTD病原体的拟议模型的基础.
研究的目的:
- 审查支持该模型的证据,其中异常压力颗粒在ALS/FTD中播种病态聚合物.
- 专注于分子伴侣在调节ALS/FTD相关的生理和病理生物分子凝聚物的作用.
- 探索其他与ALS/FTD相关的核冷凝和它们的监管.
主要方法:
- 文献综述和对生物分子凝聚物,压力颗粒和ALS/FTD现有研究的综合.
- 分析特定蛋白质 (如TDP-43,FUS) 在凝结物形成和病态聚合中的作用.
- 检查分子伴侣与生理和病理凝聚物的相互作用.
主要成果:
- 证据支持该模型,即异常的SG可以成熟成为涉及ALS/FTD的病理聚合物.
- 分子伴侣在调节生理凝聚物的分解和潜在地防止病理聚合方面发挥着重要作用.
- 其他核凝聚物,如抛光斑,异构体和核粉样体,也在陪伴调节的背景下进行讨论.
结论:
- 异常的压力颗粒代表了ALS/FTD病理性蛋白质聚合的潜在播种机制.
- 分子陪伴者是生理和病理凝聚物的关键调节者,为早期疾病干预提供治疗点.
- 了解各种凝聚物的伴侣介导调节,可以了解神经退行性疾病机制.
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