通过FOXO调节的OSER1减少了氧化应激,并延长了多种物种的寿命
Jiangbo Song1, Zhiquan Li2, Lei Zhou1
1State Key Laboratory of Resource Insects, Key Laboratory for Sericulture Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400715, China.
Nature communications
|August 20, 2024
概括
氧化应激响应胺丰富蛋白1 (OSER1) 是FOXO目标基因,可以在物种中延长寿命. OSER1增强了抗压能力,并维持了线粒体功能,这对于健康的衰老至关重要.
科学领域:
- 遗传学和分子生物学
- 衰老研究研究 衰老研究
- 细胞应激反应的应激反应
背景情况:
- FOXO转录因子是衰老和寿命的关键调节者.
- 对于FOXO的具体目标来说,它可以延长寿命的具体目标在很大程度上是未知的.
- 确定这些目标对于理解衰老机制至关重要.
研究的目的:
- 为了确定参与衰老的新型FOXO点基因.
- 调查氧化应激响应胺丰富蛋白1 (OSER1) 在寿命和应激抵抗中的作用.
- 探索OSER1.1的进化保护和功能意义.
主要方法:
- 确定OSER1作为FOXO目标基因.
- 在模型生物 (丝虫,线虫,) 中进行过度表达和淘汰研究.
- 评估寿命,抗压力 (氧化应激,饥饿,热冲击),ROS产量,ATP水平和线粒体形态.
- 在体外和体内用过氧化进行测试.
- 人类蛋白质组分析和遗传关联研究.
主要成果:
- 过度表达OSER1可以延长丝虫,线虫和的寿命.
- 缺少OSER1会缩短寿命,增加对压力因素的脆弱性.
- 在中,OSER1增强了对氧化应激,饥饿和热冲击的抵抗力.
- OSER1清除过氧化,维护线粒体的完整性和ATP的生产.
- 人类OSER1中的多态变异与长寿有关.
结论:
- OSER1是一种进化保守的FOXO调节基因,促进长寿.
- OSER1增强了抗压能力,维护了线粒体的功能,有助于健康的衰老.
- OSER1代表FOXO介导的衰老途径的关键作用因子,对人类健康有潜在的影响.
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