TSG Extends the Longevity of Caenorhabditis elegans by Targeting the DAF-16/SKN-1/SIR-2.1-Mediated Mitochondrial Quality Control Process

IF 6 2区医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY

Antioxidants Pub Date : 2024-09-04 DOI:10.3390/antiox13091086

Menglu Sun, Congmin Wei, Yehui Gao, Xinyan Chen, Kaixin Zhong, Yingzi Li, Zhou Yang, Yihuai Gao, Hongbing Wang

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引用次数: 0

Abstract

The improvement of mitochondrial function is described as a strategy for alleviating oxidative stress and intervening in the aging process. 2,3,5,4′-Tetrahydroxystilbene-2-O-β-D-glucoside (TSG) is one of the major bioactive components isolated from Polygonum multiflorum Thunb, and it exhibits multiple activities, including antioxidant and anti-inflammatory effects. In this study, we found that 200 μM TSG significantly extended the mean lifespan of Caenorhabditis elegans by 16.48% and improved health status by delaying age-associated physiological decline in worms. The longevity prolongation effect of TSG depended on the regulation of the mitochondrial quality control process mediated by DAF-16/FOXO, SKN-1/Nrf2 and SIR-2.1/SIRT1 to improve mitochondrial function. Moreover, TSG treatment obviously alleviated the proteotoxicity of β-amyloid and tau proteins in worms. Our findings indicated that TSG is a promising natural product for preventing aging and treating aging-associated neurodegenerative diseases by regulating the mitochondrial quality control process to improve mitochondrial function.

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TSG 通过靶向 DAF-16/SKN-1/SIR-2.1 介导的线粒体质量控制过程延长秀丽隐杆线虫的寿命

据介绍，改善线粒体功能是减轻氧化压力和干预衰老过程的一种策略。2,3,5,4′-四羟基二苯乙烯-2-O-β-D-葡萄糖苷（TSG）是从何首乌中分离出来的主要生物活性成分之一，具有多种活性，包括抗氧化和抗炎作用。在这项研究中，我们发现 200 μM 的 TSG 能显著延长秀丽隐杆线虫 16.48% 的平均寿命，并通过延缓与年龄相关的虫体生理衰退改善健康状况。TSG的延寿作用依赖于由DAF-16/FOXO、SKN-1/Nrf2和SIR-2.1/SIRT1介导的线粒体质量控制过程的调节，从而改善线粒体功能。此外，TSG还能明显减轻蚕体内β-淀粉样蛋白和tau蛋白的蛋白毒性。我们的研究结果表明，通过调节线粒体质量控制过程来改善线粒体功能，TSG 是一种很有希望用于预防衰老和治疗衰老相关神经退行性疾病的天然产物。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Antioxidants Biochemistry, Genetics and Molecular Biology-Physiology

CiteScore

10.60

自引率

11.40%

发文量

2123

审稿时长

16.3 days

期刊介绍： Antioxidants (ISSN 2076-3921), provides an advanced forum for studies related to the science and technology of antioxidants. It publishes research papers, reviews and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files and software regarding the full details of the calculation or experimental procedure, if unable to be published in a normal way, can be deposited as supplementary electronic material.