人类衍生的microRNA 21调节肠道共生细菌体thetaiotaomicron中的醇和L-三丹生物合成转录
Kayla Flanagan1, Kirsten Gassner1, Michaela Lang1
1Centre for Microbiology and Environmental Systems Science, Department of Microbiology and Ecosystem Science, Division of Microbial Ecology, University of Vienna, Vienna, Austria.
mBio
|January 29, 2025
概括
来自肠道内膜的microRNAs (miRNAs) 与肠道微生物相互作用. 在IBS患者中减少的miR-21表明它可能通过影响微生物托生产来调节肠道功能.
科学领域:
- 微生物学 微生物学
- 分子生物学分子生物学
- 胃肠病学 胃肠病学
背景情况:
- 在肠道光层分泌的宿主衍生微RNAs (miRNAs) 介导宿主微生物交互.
- 在胃肠道疾病 (如IBS和IBD) 中观察到便中的miRNA水平发生变化.
- 了解miRNA-微生物群相互作用是开发新型肠道疾病治疗的关键.
研究的目的:
- 研究miR-21在调节肠道微生物组功能中的作用.
- 为了确定miR-21是否与特定的肠道微生物有关并对其产生影响.
- 探索miR-21作为胃肠道疾病治疗点的潜力.
主要方法:
- 人类便微生物群的化与miR-21.
- 光激活细胞分类和测序以识别相互作用的微生物.
- 对暴露于miR-21.1的*Bacteroides thetaiotaomicron*进行转录组分析.
主要成果:
- miR-21迅速与各种肠道微生物细胞结合在一起,包括*Bacteroides*,*Limosilactobacillus*,*Ruminococcus*和*Coprococcus*.
- 观察到miR-21对细菌转录的序列特定影响.
- miR-21补充剂在*B. thetaiotaomicron*中增加了道和L-三酸盐生物合成操作子的转录.
结论:
- 来自宿主的miR-21可以直接与肠道微生物群功能相互作用和调节.
- 一个涉及微生物托合成miR-21调节的新途径可能会影响宿主肠道功能.
- 这一miR-21-微生物组轴对治疗胃肠道疾病有潜在的影响.
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