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代谢性减肥手术对先天性免疫细胞表型和功能的长期影响
Julia van Tuijl1, Debby Vreeken2,3, Wieteke Broeders1
1Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands.
International journal of obesity (2005)
|August 20, 2025
概括
腹部外科手术可以减少肥胖的标志物,但一个超炎性单细胞表型仍然存在,与脂肪组织的影响有关. 这解释了手术后持续的心血管风险.
科学领域:
- 免疫学 免疫学 免疫学
- 心血管科学 心血管科学
- 代谢疾病研究研究
背景情况:
- 肥胖是动脉样硬化心血管疾病的主要危险因素.
- 心血管疾病的风险仍然存在,尽管体重减轻,但腹部外科手术后仍然存在.
- 天生的免疫细胞,特别是单细胞,通过训练免疫在动脉生成中发挥作用.
研究的目的:
- 在减肥手术后调查先天性免疫细胞高响应性的持续性.
- 探索脂肪组织在维持这种超炎症状态中的作用.
- 了解肥胖和减肥手术对心血管健康的长期影响.
主要方法:
- 对27名肥胖患者在减肥手术前和减肥手术后6个月进行的观察性病例-队列研究,与20名健康对照人群相比.
- 使用流细胞计,功能测定,RNA测序和ChIP进行单细胞评估.
- 在体外研究中,健康单细胞暴露在肥胖患者的脂肪组织中.
主要成果:
- 腹腔外科手术使白细胞数量和hs-CRP降低到正常水平.
- 在手术后6个月内,一种高反应的益炎性单细胞表型持续存在.
- 肥胖患者的脂肪组织诱导了单细胞中持续增强的细胞因子生产.
结论:
- 剩余的功能性和转录性超炎性单细胞表型在腹腔外科手术后的6个月内仍然存在.
- 脂肪组织有助于对单细胞的长期促炎作用.
- 研究结果阐明了肥胖和减肥手术对心血管的长期影响.
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