通过昆虫线粒核基因组的进化速率共变的识别长寿基因
Mei Tao1,2,3, Jiani Chen1, Chunlai Cui4
1Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China.
Nature aging
|June 4, 2024
概括
一个新发现的基因CG11837 (DIMT1) 通过影响氧化酸化来调节各种物种的寿命. 它的操纵影响长寿和细胞衰老,为衰老提供了洞察力.
科学领域:
- 进化生物学是进化的生物学.
- 遗传学 遗传学是一种遗传学.
- 代谢过程中的代谢.
背景情况:
- 氧化酸化对于能量代谢和寿命调节至关重要.
- 线粒体和核基因参与其中,但核和线粒体基因之间的相互作用尚未完全理解.
- 进化速率共变 (ERC) 研究主要关注已知的基因相互作用.
研究的目的:
- 系统地检查昆虫中线粒体和核基因的ERC.
- 识别与线粒体基因相互作用的核基因.
- 调查未表征的基因CG11837在寿命调节中的功能.
主要方法:
- 在472种昆虫物种中对ERC进行线粒体和核基因基因基因基因的系统检查.
- 识别了75个非线粒体向的核基因.
- 在昆虫 (果) 和Caenorhabditis elegans中进行基因淘汰和过度表达实验.
- 在人类细胞中评估细胞衰老.
主要成果:
- 确定了75个具有显著ERC的核基因与线粒体基因.
- 发现未表征的基因CG11837,是人类DIMT1的假定正义基因,可以调节寿命.
- 淘汰CG11837减少了多种物种的平均寿命,而过度表达延长了寿命并增强了氧化酸化基因活性.
- 过度表达DIMT1保护人类细胞免受衰老.
结论:
- CG11837 (DIMT1) 在调节各种动物物种的寿命和氧化酸化中起着保留作用.
- 这项研究提供了关于线粒细胞核基因相互作用的进化动态的见解.
- CG11837代表了旨在调节寿命和与年龄有关的衰退的干预措施的潜在目标.
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