来自微生物种移植的微生物组不匹配导致持续的非目标代谢和免疫调节效应
Orlando DeLeon1, Mora Mocanu1, Alan Tan1
1Department of Medicine, University of Chicago, Chicago, IL 60637, USA.
Cell
|June 7, 2025
概括
便微生物移植 (FMT) 可能通过产生区域微生物不匹配来破坏小肠的平衡. 这项研究揭示了FMT的意想不到的后果,
科学领域:
- 微生物学
- 胃肠病学
- 系统生物学
背景情况:
- 便微生物移植 (FMT) 是一种新兴的疗法,但其在恢复小肠微生物群 (SB) 的有效性尚不确定.
- 之前的研究显示在FMT后通过上部内镜将无氧细菌植入十二指肠.
研究的目的:
- 调查口服FMT是否诱导宿主微生物不匹配,影响SB稳态.
- 评估区域微生物移植对肠道环境的长期影响.
主要方法:
- 经过抗生素治疗的无特定病原体 (SPF) 的小鼠接受了骨,骨或便微生物群移植 (JMTs,CMTs,FMTs).
- 移植后1个月和3个月分析了微生物群组成,能量平衡和肠/肝转录组.
- 在人体内体和十二指肠活检上进行了RNA测序 (RNA-seq).
主要成果:
- 杰菌群移植 (JMT) 和FMT改变了区域微生物群,能量平衡和宿主转录组.
- 促进宿主代谢路径,而FMT则有利于免疫路径.
- 微生物移植影响了区域性肠道标志物 (Gata4, Gata6, Satb2) 和分化.
结论:
- 由FMT引起的区域微生物不匹配可能会导致意想不到的后果.
- 目前的FMT策略可能需要重新评估以优化SB恢复并避免意外的主机反应.
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