克隆性血液形成的人体血蛋白质谱
Zhi Yu1,2,3, Amélie Vromman4, Ngoc Quynh H Nguyen5
1Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, MA, USA.
Nature communications
|November 27, 2025
概括
与不确定潜力的克隆性血液形成 (CHIP) 相关的等离子体蛋白质组概况揭示了免疫和炎症途径的关联. 这些发现为CHIP提供了洞察力.
科学领域:
- 基因组学和蛋白质组学
- 血液学 血液学 血液学
- 心血管疾病研究研究
背景情况:
- 血液细胞的亚临床体质突变,如不确定潜力的克隆性血液形成 (CHIP) 中的突变,与不良健康结果有关.
- CHIP与各种癌症和非癌症疾病的风险增加有关,特别是冠状动脉疾病 (CAD).
- 了解CHIP中的血蛋白质组景观可能会阐明疾病机制和下游临床后果.
研究的目的:
- 调查与CHIP及其常见驱动基因 (DNMT3A,TET2,ASXL1) 相关的血蛋白质谱.
- 探索跨不同驱动基因,性别和种族的这些关联的异质性.
- 为了确定CHIP和CAD之间共享的血蛋白,并解开因果关系.
主要方法:
- 分析了TOPMed和英国生物银行中的61,833名参与者 (3881名CHIP) 的血蛋白质组数据 (SomaScan和Olink).
- 识别与CHIP相关的蛋白质和特定的驱动基因.
- 在小鼠模型中使用孟德尔随机化和ELISA进行因果推断,特别是对于TET2 CHIP.
- 在CHIP和CAD队列之间对蛋白质组特征进行比较分析.
主要成果:
- 鉴定了TOPMed中的32种蛋白质和UKB中的345种蛋白质与CHIP和流行驱动基因相关.
- 协会表现出基于驾驶基因,性别和种族的显著异质性.
- 丰富分析显示了与免疫反应和炎症通路的关联.
- 与TET2 CHIP相关的因果蛋白质干扰被使用孟德尔随机化和小鼠模型解开.
- 确定了CHIP和CAD共同的血蛋白.
结论:
- 血蛋白质组形状与CHIP及其驱动突变有显著的关联,特别是涉及免疫和炎症途径.
- 这些蛋白质组签名显示出由遗传驱动因素,性别和种族影响的相当大的变化.
- 该研究提供了对TET2-CHIP相关蛋白质组变化的因果洞察,并通过共享的血蛋白确定了CHIP和CAD之间的潜在联系.
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