完善生成,解释和应用的多器官,多omics生物衰老时钟
1Laboratory of AI and Biomedical Science (LABS), Department of Radiology, Columbia University, New York, NY, USA. junhao.wen89@gmail.com.
Nature aging
|August 5, 2025
概括
这项研究引入了基于蛋白质组的生物年龄差距 (ProtBAGs),使用血蛋白来增强衰老研究. 这些新的时钟改善了系统性疾病和死亡率的预测,为多个器官的生物衰老提供了洞察力.
科学领域:
- 生物遗传学 生物遗传学
- 蛋白质组学是指蛋白质组学.
- 生物信息学是一种生物信息学.
背景情况:
- 生物衰老时钟对于理解人类衰老和疾病至关重要.
- 等离子体蛋白质组学提供了一个分子维度,以丰富现有的老化时钟.
- 多器官钟整合了各种生物信息,以进行全面的衰老评估.
研究的目的:
- 利用英国生物银行数据开发和验证基于多器官蛋白质组的生物年龄差距 (ProtBAGs).
- 研究开发和使用蛋白质衰老时钟的方法和临床考虑因素.
- 将ProtBAG与现有的基于表型的时钟集成,并探索遗传重叠和疾病关联.
主要方法:
- 开发11个多器官ProtBAG,使用来自43,498名英国生物库参与者的2,448个血蛋白.
- 分析方法因素,包括年龄偏差纠正,蛋白质器官特异性,样本大小和训练数据病理.
- 整合ProtBAGs与九个基于表型的生物年龄差距,以评估遗传重叠和因果疾病关联.
主要成果:
- 成功开发了11个多器官ProtBAG.
- 确定了影响时钟通用性和解释性的关键方法考虑因素.
- 证明结合多器官特征可以提高系统性疾病和全因死亡率的预测.
- 揭示了ProtBAGs和疾病终点之间的遗传重叠和因果关系.
结论:
- 血蛋白质组学为多器官生物衰老钟提供了有价值的分子层.
- 方法论严谨对于开发强大且在临床上可解释的衰老时钟至关重要.
- 生物衰老的多器官,多主题框架对未来的研究和临床应用具有重大前景.
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