世界贸易中心暴露在社区成员中的表观遗传衰老加速
Stephanie Tuminello1, Yibeltal Arega Ashebir1, Chanel Schroff2
1Department of Population Health, NYU Grossman School of Medicine, 180 Madison Avenue, New York, NY, 10016, USA.
Scientific reports
|September 30, 2025
概括
世界贸易中心 (WTC) 暴露与女性更快的生物衰老有关,根据表观遗传钟的测量. 这种加速衰老甚至在没有癌症的个体和乳腺癌幸存者中也被观察到.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 生物老龄化 生物老龄化
- 环境健康 环境健康
背景情况:
- 生物衰老可以加速超越时间的年龄,受环境因素的影响.
- 表观遗传钟提供了一种估计生物年龄和检测衰老加速的方法.
- 世界贸易中心 (WTC) 的暴露是众所周知的环境压力因素.
研究的目的:
- 调查WTC暴露是否与女性表观遗传衰老加速有关.
- 通过使用多个表观遗传钟来评估WTC暴露对生物年龄的影响.
- 检查WTC暴露,衰老加速和癌症状态之间的关系.
主要方法:
- 分析了暴露于WTC的妇女和未暴露的参考组的外周血液样本.
- 使用Infinium甲基化EPIC阵列进行表观基因组的分析.
- 基于DNA的表观遗传衰老是使用Hannum,Horvath,PhenoAge和GrimAge时钟进行估计的.
- 年龄加速的计算是指表观遗传年龄的余数回归于时间年龄.
- 使用普通最小平方回归来评估WTC暴露与衰老加速之间的关联.
主要成果:
- 在对共变量进行调整后,WTC暴露与使用汉努姆时钟 (β: 3.789,p<0.001) 的表观遗传衰老加速显著相关.
- 与Horvath和PhenoAge时钟发现了类似的关联,但不是GrimAge.
- 与WTC暴露相关的表观遗传衰老加速在按乳腺癌状况分层时 (β: 3.473,p<0.001) 或在无癌症参与者中 (β: 4.369,p=0.001) 持续存在.
- 乳腺癌诊断也与加速衰老显著相关 (β: 1.658,p=0.021).
结论:
- 暴露于WTC显著与女性表观遗传衰老加速有关.
- 这种关联甚至在按癌症状况分层时也保持稳健.
- 这些发现表明,WTC暴露对老化过程有持久的生物学影响.
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