Control of the gut microbiome by fecal microRNA

Since their discovery in the early 90s, microRNAs (miRNAs), small non-coding RNAs, have mainly been associated with posttranscriptional regulation of gene expression on a cell-autonomous level. Recent evidence has extended this role by adding inter-species communication to the manifold functional ra...

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Main Authors: Shirong Liu, Howard L. Weiner
Format: Article
Language:English
Published: Shared Science Publishers OG 2016-03-01
Series:Microbial Cell
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Online Access:http://microbialcell.com/researcharticles/control-of-the-gut-microbiome-by-fecal-microrna/
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author Shirong Liu
Howard L. Weiner
author_facet Shirong Liu
Howard L. Weiner
author_sort Shirong Liu
collection DOAJ
description Since their discovery in the early 90s, microRNAs (miRNAs), small non-coding RNAs, have mainly been associated with posttranscriptional regulation of gene expression on a cell-autonomous level. Recent evidence has extended this role by adding inter-species communication to the manifold functional range. In our latest study [Liu S, et al., 2016, Cell Host & Microbe], we identified miRNAs in gut lumen and feces of both mice and humans. We found that intestinal epithelial cells (IEC) and Hopx+ cells were the two main sources of fecal miRNA. Deficiency of IEC-miRNA resulted in gut dysbiosis and WT fecal miRNA transplantation restored the gut microbiota. We investigated potential mechanisms for this effect and found that miRNAs were able to regulate the gut microbiome. By culturing bacteria with miRNAs, we found that host miRNAs were able to enter bacteria, specifically regulate bacterial gene transcripts and affect bacterial growth. Oral administration of synthetic miRNA mimics affected specific bacteria in the gut. Our findings describe a previously unknown pathway by which the gut microbiome is regulated by the host and raises the possibility that miRNAs may be used therapeutically to manipulate the microbiome for the treatment of disease.
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spelling doaj-art-4bc120892a184b08ac485038da98b1fa2025-08-20T02:53:21ZengShared Science Publishers OGMicrobial Cell2311-26382016-03-013417617710.15698/mic2016.04.492Control of the gut microbiome by fecal microRNAShirong Liu0Howard L. Weiner1Department of Neurology, Ann Romney Center for Neurologic Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA.Department of Neurology, Ann Romney Center for Neurologic Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA.Since their discovery in the early 90s, microRNAs (miRNAs), small non-coding RNAs, have mainly been associated with posttranscriptional regulation of gene expression on a cell-autonomous level. Recent evidence has extended this role by adding inter-species communication to the manifold functional range. In our latest study [Liu S, et al., 2016, Cell Host & Microbe], we identified miRNAs in gut lumen and feces of both mice and humans. We found that intestinal epithelial cells (IEC) and Hopx+ cells were the two main sources of fecal miRNA. Deficiency of IEC-miRNA resulted in gut dysbiosis and WT fecal miRNA transplantation restored the gut microbiota. We investigated potential mechanisms for this effect and found that miRNAs were able to regulate the gut microbiome. By culturing bacteria with miRNAs, we found that host miRNAs were able to enter bacteria, specifically regulate bacterial gene transcripts and affect bacterial growth. Oral administration of synthetic miRNA mimics affected specific bacteria in the gut. Our findings describe a previously unknown pathway by which the gut microbiome is regulated by the host and raises the possibility that miRNAs may be used therapeutically to manipulate the microbiome for the treatment of disease.http://microbialcell.com/researcharticles/control-of-the-gut-microbiome-by-fecal-microrna/microbiotamicroRNAhost-microbe interactiondysbiosiscolitis
spellingShingle Shirong Liu
Howard L. Weiner
Control of the gut microbiome by fecal microRNA
Microbial Cell
microbiota
microRNA
host-microbe interaction
dysbiosis
colitis
title Control of the gut microbiome by fecal microRNA
title_full Control of the gut microbiome by fecal microRNA
title_fullStr Control of the gut microbiome by fecal microRNA
title_full_unstemmed Control of the gut microbiome by fecal microRNA
title_short Control of the gut microbiome by fecal microRNA
title_sort control of the gut microbiome by fecal microrna
topic microbiota
microRNA
host-microbe interaction
dysbiosis
colitis
url http://microbialcell.com/researcharticles/control-of-the-gut-microbiome-by-fecal-microrna/
work_keys_str_mv AT shirongliu controlofthegutmicrobiomebyfecalmicrorna
AT howardlweiner controlofthegutmicrobiomebyfecalmicrorna