肥胖相关炎症中的T细胞:魔鬼在于细节
Yolander Valentine1, Barbara S Nikolajczyk1,2,3,4
1Department of Pharmacology and Nutritional Science, University of Kentucky, Lexington, Kentucky, USA.
Immunological reviews
|May 20, 2024
概括
肥胖会通过T细胞引发慢性炎症,即使减肥后也会持续下去. 了解T细胞在肥胖,性激素和衰老中的作用对于新疗法至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 代谢健康 代谢健康
- 内分泌学 在内分泌学.
背景情况:
- 肥胖影响超过40%的美国成年人和20%的儿童,导致慢性低度炎症.
- T 细胞,特别是 CD4+ T 辅助体 (Th) 子集,对于与肥胖相关的炎症和代谢健康的下降至关重要,包括胰岛素抵抗和2型糖尿病 (T2D).
- 性差异和衰老显著影响与肥胖相关的炎症,女性和老年人患有与男性相似的炎症.
研究的目的:
- 为了研究尽管体重减轻,但在肥胖中持续存在的T细胞介导炎症.
- 探索性激素和衰老在与肥胖相关的炎症中的作用.
- 确定潜在的治疗点,以解决炎症并改善肥胖中的代谢健康.
主要方法:
- 在肥胖模型和人类中分析循环中的T细胞群 (CD4+Th子集) 和脂肪组织.
- 检查细胞因子的产生及其与胰岛素抵抗和T2D等代谢参数的相关性.
- 跨不同性别,不同年龄组的比较研究,以及对减肥干预措施的反应.
主要成果:
- 肥胖导致T细胞子集和细胞因子的显著改变,导致胰岛素抵抗和T2D.
- 减肥并不能完全解决T细胞介导的炎症,这表明持续的免疫失调.
- 性别和年龄是关键因素,人类雌性不显示与雌性小鼠相同的保护,衰老加剧炎症.
结论:
- 与肥胖相关的T细胞炎症是复杂的,受性别,荷尔蒙和年龄的影响,即使在减肥后也会持续下去.
- 需要进一步的研究,以了解如何解决持续的炎症,并改善长期的体重管理.
- 调查新型疗法,如塞马格卢提德对它们对T细胞炎症的影响是有必要的.
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