由共生细菌产生的代谢物促进了外围调节性T细胞的产生
Nicholas Arpaia1, Clarissa Campbell1, Xiying Fan1
11] Howard Hughes Medical Institute and Ludwig Center at Memorial Sloan-Kettering Cancer Center, New York, New York 10065, USA [2] Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, New York 10065, USA.
Nature
|November 15, 2013
概括
微生物短链脂肪酸,如丁酸盐,促进肠道抗炎调节T (Treg) 细胞的发展. 这突出了肠道细菌代谢物如何影响免疫系统平衡和肠道平衡.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 胃肠病学 胃肠病学
背景情况:
- 肠道微生物群的组成会影响免疫恒温.
- 调节性T (Treg) 细胞对于限制肠道炎症至关重要.
- 微生物影响Treg细胞分化的分子机制尚未完全理解.
研究的目的:
- 研究微生物代谢物在Treg细胞生成中的作用.
- 探索短链脂肪酸 (SCFA) 如何影响肠道中亲和抗炎性免疫反应的平衡.
主要方法:
- 研究了微生物代谢物,特别是酸和酸等SCFA对小鼠Treg细胞生成的影响.
- 评估了酸盐诱导的Treg细胞扩张对内部增强剂CNS1的依赖性,这对外基Treg分化至关重要.
主要成果:
- 丁酸盐是一种微生物SCFA,在小鼠中显著促进了Treg细胞的异位生成.
- 这种Treg细胞数量的增强取决于CNS1增强剂,这对外围Treg发育至关重要.
- 另一种抑制HDAC的SCFA,propionate,也增强了新的Treg细胞生成,与乙酸不同.
结论:
- 细菌代谢物,特别是酸和酸等SCFA,在肠道微生物群和宿主免疫系统之间的通信中起着关键的调解作用.
- 这些微生物代谢物可以通过影响Treg细胞分化来调节促炎和抗炎机制之间的平衡.
- 了解这些微生物与免疫相互作用对于维持肠道免疫恒温和潜在治疗炎症性疾病至关重要.
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