Zeng Hu, Chi Hongbo
Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA.
Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA.
Trends Immunol. 2015 Jan;36(1):3-12. doi: 10.1016/j.it.2014.08.003. Epub 2014 Sep 20.
Foxp3(+) regulatory T cells (Tregs) maintain immune tolerance and play an important role in immunological diseases and cancers. Recent studies have revealed an intricate relationship between Treg biology and host and microbial metabolism. Various metabolites or nutrients produced by host and commensal microbes, such as vitamins and short-chain fatty acids (SCFAs), regulate Treg generation, trafficking, and function. Furthermore, cell intrinsic metabolic programs, orchestrated by mTOR and other metabolic sensors, modulate Foxp3 induction and Treg suppressive activity. Conversely, Tregs are crucial in regulating obesity-associated inflammation and host metabolic balance, and in shaping homeostasis of gut microbiota. We review here the interplay between Tregs and metabolism, with a particular focus on how host, commensal, and cellular metabolism impinge upon Treg homeostasis and function.
叉头框蛋白3(Foxp3)阳性调节性T细胞(Tregs)维持免疫耐受,并在免疫性疾病和癌症中发挥重要作用。最近的研究揭示了Treg生物学与宿主及微生物代谢之间的复杂关系。宿主和共生微生物产生的各种代谢产物或营养物质,如维生素和短链脂肪酸(SCFAs),可调节Treg的产生、迁移和功能。此外,由mTOR和其他代谢传感器精心编排的细胞内在代谢程序,可调节Foxp3的诱导和Treg的抑制活性。相反,Tregs在调节肥胖相关炎症和宿主代谢平衡以及塑造肠道微生物群稳态方面至关重要。我们在此综述Tregs与代谢之间的相互作用,特别关注宿主、共生和细胞代谢如何影响Treg的稳态和功能。