克隆造血驱动突变,免疫细胞功能和肥胖的血管代谢并发症之间的关联
Helin Tercan1, Benjamin C Cossins1, Rosanne C van Deuren2
1Radboud University Medical Center Department of Internal Medicine Nijmegen the Netherlands.
Journal of the American Heart Association
|January 12, 2024
概括
在肥胖个体中,克隆性血液形成驱动突变 (CHDM) 与炎症增加和免疫细胞变化有关,但令人惊的是,心血管斑块较少. 这些发现表明CHIP和心血管健康之间存在复杂的关系.
科学领域:
- 免疫学 免疫学 免疫学
- 心血管科学 心血管科学
- 遗传学 是一个遗传学.
背景情况:
- 肥胖与炎症和血管代谢问题有关,如代谢综合征和动脉样硬化.
- 不确定潜力的克隆性血液形成 (CHIP) 是心血管疾病的已知危险因素.
- 肥胖中CHIP,免疫功能,炎症和血管代谢并发症之间的关系需要进一步调查.
研究的目的:
- 研究CHIP,免疫细胞功能,全身炎症和超重或肥胖个体的血管代谢并发症之间的关联.
- 确定克隆性血液形成驱动突变 (CHDM) 如何影响炎症标记物,免疫细胞概况和动脉样硬化的存在.
主要方法:
- 一项对297名超重或肥胖个体 (54-81岁) 的横截面研究.
- 使用超敏感向试验识别CHDM.
- 通过超声波评估动脉动脉样硬化,免疫学参数 (细胞因子生产能力),血蛋白质组学和脂肪组织炎症.
主要成果:
- 患有CHIP的个体表现出更高的循环IL-6,白细胞和中性粒细胞数量.
- 周围血液单核细胞的ex vivo细胞因子生产能力在CHIP患者中较低.
- 与预期相反,CHIP与动脉样硬化斑块的发病率较低有关,并且与代谢综合征无关.
结论:
- 在超重或肥胖个体中,CHDM与血管代谢并发症的增加无关,而与动脉斑块的减少有关.
- 慢性血型糖尿病与循环炎症标志物和白细胞数量升高,以及外周血液单核细胞细胞因子产量减少有关.
- 观察到性别特异性差异,男性呈现较高的白细胞/中性粒细胞数量,女性在CHDM存在时表现出较低的细胞因子生产能力.
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