肠道微生物群-丁酸盐-PPARγ轴调节脂肪调节T细胞种群
Banru Chen1,2, Lizhi Guan1,2, Chao Wu1,2
1Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|February 25, 2025
概括
肠道微生物群,特别是丁酸盐,通过PPARγ增强脂肪定居调节T (Treg) 细胞. 这一发现为减少内脏炎症和改善代谢健康提供了潜在的策略.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 代谢过程中的代谢.
背景情况:
- 内脏脂肪组织 (VAT) 中的调节性T (Treg) 细胞对于抑制炎症至关重要.
- 肠道微生物群对这些特定的脂肪定居Treg细胞的影响,特别是那些表达过氧酶增殖器激活受体马 (PPARγ) 的细胞,仍然不清楚.
研究的目的:
- 调查肠道微生物群在调节内脏脂肪组织中的脂肪定居Treg细胞中的作用.
- 阐明共生细菌影响Treg细胞种群和在VAT中的功能机制.
主要方法:
- 在小鼠模型中消耗和重建肠道微生物群.
- 在增值税中分析Treg细胞群,特别是ST2+Treg细胞.
- 酸盐补充剂和高纤维饮食干预措施.
- 评估葡萄糖耐受性和内脏炎症标志物.
- 对人类体内脂肪Treg细胞与便微生物群和代谢物的相关性分析.
主要成果:
- 微生物群的枯竭显著减少了增值税Treg细胞,特别是ST2+Treg细胞.
- 肠道微生物组的重建恢复了VAT Treg细胞群.
- 来自肠道微生物群的酸盐通过激活PPARγ来增强VAT ST2+ Treg细胞.
- 丁酸盐和高纤维饮食改善了葡萄糖耐受性,并在肥胖小鼠中减少了内脏炎症.
- 人类研究表明,体脂肪Treg细胞和便中的丁酸盐水平之间存在正相关性.
结论:
- 肠道微生物群-丁酸盐-PPARγ轴对于维持VAT Treg细胞种群至关重要.
- 准这一轴为增强VAT Treg细胞和减轻炎症提供了潜在的治疗策略.
- 这项研究强调了肠道微生物对代谢健康和脂肪组织内的免疫调节的影响.
关键词:
在 PPARγγ 中.ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2 ST2这就是Treg Treg.黄油酸盐 黄油酸盐 是一种纤维纤维纤维纤维纤维是一种纤维纤维.我们的肠道微生物群.内脏脂肪组织 (VATs).更多相关视频
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