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使用系统建模,解开衰老细胞中的代谢异质性和共同性

Gong-Hua Li¹, Yu-Hong Li², Qin Yu¹

¹State Key Laboratory of Genetic Evolution & Animal Models, Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming Key Laboratory of Healthy Aging Study, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China.

|April 14, 2025

概括

细胞衰老是衰老的驱动力,具有明显的代谢特征. 使用美酸盐增强美酸盐路径可能会逆转与衰老相关的代谢变化,并延长寿命,如C. elegans所见.

科学领域:

老年学和细胞生物学
代谢学和系统生物学

背景情况:

细胞衰老是衰老和与年龄有关的疾病的一个重要因素.
细胞衰老的代谢特征尚未完全理解.
了解衰老代谢对于开发抗衰老策略至关重要.

研究的目的:

系统地分析四种不同类型的细胞衰老的代谢特征.
在不同的衰老诱导体中识别共同和分歧的代谢特征.
探索潜在的代谢干预措施,以缓解衰老和促进长寿.

主要方法:

在12个细胞系中利用全基因组代谢建模和元分析.
研究了四种类型的衰老:复制性,辐射,活性氧物种 (ROS) 和癌基因诱导.
进行全基因组的淘汰赛模拟,以预测代谢途径的改变.

主要成果:

复制性和ROS诱导的衰老具有共同的代谢特征:降低脂质代谢和降低调节的美酸盐路径.
照射和瘤基因诱导的衰老显示出更大的代谢异质性.
通过给予mevalonate来增强mevalonate路径,显示出有可能逆转与衰老相关的代谢变化.

结论:

细胞衰老表现出不同的代谢特征,取决于诱导因素.
梅瓦酸途径是对抗衰老和衰老的干预措施的关键目标.
梅瓦酸的使用延长了*Caenorhabditis elegans*的寿命,支持了它的抗衰老潜力.

关键词:

细胞衰老细胞衰老这是一个元分析.代谢建模的代谢建模代谢特征代谢特征代谢特征

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