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Protein homeostasis and aging: Role of ubiquitin protein ligases

机译:蛋白质稳态和衰老:泛素蛋白质连接酶的作用

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摘要

Protein homeostasis is fundamental in normal cellular function and cell survival. The ubiquitin-proteasome system (UPS) plays a central role in maintaining the protein homeostasis network through selective elimination of misfolded and damaged proteins. Impaired function of UPS is implicated in normal aging process and also in several age-related neurodegenerative disorders that are characterized by increased accumulation oxidatively modified proteins and protein aggregates. Growing literature also indicate the potential role of various ubiquitin protein ligases in the regulation of aging process by enhancing the degradation of either central lifespan regulators or abnormally folded and damaged proteins. This review mainly focuses on our current understanding of the importance of UPS function in the regulation of normal aging process.
机译:蛋白质稳态是正常细胞功能和细胞存活的基础。泛素-蛋白酶体系统(UPS)在通过选择性消除折叠错误和受损的蛋白质来维持蛋白质稳态网络中起着核心作用。 UPS的功能受损与正常衰老过程有关,也与几种与年龄有关的神经退行性疾病有关,这些疾病的特征是积累的氧化修饰蛋白质和蛋白质聚集体增加。越来越多的文献还表明,各种泛素蛋白连接酶可能通过增强中央寿命调节剂或异常折叠和损坏的蛋白的降解来调节衰老过程。这篇综述主要集中在我们目前对UPS功能在正常老化过程调节中的重要性的理解上。

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