阐明循环炎症因素与衰老特征之间的因果关系:转录组学和孟德尔随机化分析
Dong Cao1, Xuelian Huang1, Lifang Luo2
1Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
Annals of the New York Academy of Sciences
|August 27, 2025
概括
这项研究使用基因分析来探索炎症与衰老之间的联系. 它发现了双向因果关系,其中IL10是免疫反应与衰老过程的关键因素.
科学领域:
- 遗传学和免疫学
- 老龄化研究
- 系统生物学
背景情况:
- 慢性炎症与衰老有关,但具体原因尚不清楚.
- 了解炎症和衰老之间的相互作用对于健康跨度研究至关重要.
研究的目的:
- 研究循环炎症蛋白基因与衰老特征之间的双向因果关系.
- 确定影响衰老的特定炎症因素,反之亦然.
主要方法:
- 对91个炎症蛋白基因和衰老特征的双向孟德尔随机化 (Bi-MR) 分析 (端粒长度,表观遗传钟,虚弱,认知,健康范围).
- 使用MR-Egger,加权中位数,贝叶斯方法和MR-RAPS的灵敏度分析.
- 使用GTEx,GSE236927,GSE123697和GSE237029数据集与CIBERSORT以及权重基因共表达网络分析进行转录组验证.
主要成果:
- 确定了12个具有显著前向关联的炎症因子基因和10个与衰老特征的反向关联.
- 在CASP8和健康范围,IL1A/CXCL10和端粒长度之间发现了因果关系.
- 证实端粒长度会因果地影响interleukin-10 (IL10) mRNA水平,IL10被证实是与衰老相关的炎症基因.
结论:
- 提供了强有力的遗传和转录学证据,证明了炎症与衰老之间的双向因果关系.
- 突出了IL10作为免疫调节和衰老生物学之间关系的重要分子参与者.
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