Protein misfolding in β-cell failure

IF 40 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM
Claire Greenhill
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引用次数: 0

Abstract Image

β细胞失败中的蛋白质错误折叠
胰腺蛋白错误折叠发生在2型糖尿病(T2DM)中,并导致β细胞衰竭。然而,在2型糖尿病中,蛋白质抑制功能受损的作用尚不清楚。新的研究旨在确定蛋白质错误折叠和蛋白质平衡受损在T2DM中的作用的更多细节。研究人员评估了线粒体基质伴侣蛋白和蛋白酶(如由LONP1和mtHSP70编码的蛋白酶(也称为HSPA9))的表达水平,它们是线粒体蛋白静止的关键,并在线粒体蛋白错误折叠时被诱导。与预期相反,研究人员发现T2DM患者β-细胞中LONP1的表达有所下降。他们继续建立了一个β细胞特异性敲除Lonp1的小鼠模型(β-Lonp1 KO小鼠)。与对照组相比,β-Lonp1 KO小鼠随着年龄的增长,高血糖逐渐加重,胰岛胰岛素含量降低。研究人员还观察到,与对照组小鼠相比,β-Lonp1 KO小鼠的β细胞质量和存活率有所下降,这表明LONP1在维持β细胞质量方面发挥了作用。
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来源期刊
Nature Reviews Endocrinology
Nature Reviews Endocrinology 医学-内分泌学与代谢
CiteScore
42.00
自引率
0.70%
发文量
158
审稿时长
6-12 weeks
期刊介绍: Nature Reviews Endocrinology aspires to be the foremost platform for reviews and commentaries catering to the scientific communities it serves. The journal aims to publish articles characterized by authority, accessibility, and clarity, enhanced with easily understandable figures, tables, and other visual aids. The goal is to offer an unparalleled service to authors, referees, and readers, striving to maximize the usefulness and impact of each article. Nature Reviews Endocrinology publishes Research Highlights, Comments, News & Views, Reviews, Consensus Statements, and Perspectives relevant to researchers and clinicians in the fields of endocrinology and metabolism. Its broad scope ensures that the work it publishes reaches the widest possible audience.
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