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Vitamin B12 coordinates ileal epithelial cell and microbiota functions to resist Salmonella infection in mice
Deprivation of vitamin B12 (VB12) is linked to various diseases, but the underlying mechanisms in disease progression are poorly understood. Using multiomic approaches, we elucidated the responses of ileal epithelial cells (iECs) and gut microbiome to VB12 dietary restriction. Here, VB12 deficiency...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Rockefeller University Press
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9184849/ https://www.ncbi.nlm.nih.gov/pubmed/35674742 http://dx.doi.org/10.1084/jem.20220057 |
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author | Ge, Yong Zadeh, Mojgan Mohamadzadeh, Mansour |
author_facet | Ge, Yong Zadeh, Mojgan Mohamadzadeh, Mansour |
author_sort | Ge, Yong |
collection | PubMed |
description | Deprivation of vitamin B12 (VB12) is linked to various diseases, but the underlying mechanisms in disease progression are poorly understood. Using multiomic approaches, we elucidated the responses of ileal epithelial cells (iECs) and gut microbiome to VB12 dietary restriction. Here, VB12 deficiency impaired the transcriptional and metabolic programming of iECs and reduced epithelial mitochondrial respiration and carnitine shuttling during intestinal Salmonella Typhimurium (STm) infection. Fecal microbial and untargeted metabolomic profiling identified marked changes related to VB12 deficiency, including reductions of metabolites potentially activating mitochondrial β-oxidation in iECs and short-chain fatty acids (SCFAs). Depletion of SCFA-producing microbes by streptomycin treatment decreased the VB12-dependent STm protection. Moreover, compromised mitochondrial function of iECs correlated with declined cell capability to utilize oxygen, leading to uncontrolled oxygen-dependent STm expansion in VB12-deficient mice. Our findings uncovered previously unrecognized mechanisms through which VB12 coordinates ileal epithelial mitochondrial homeostasis and gut microbiota to regulate epithelial oxygenation, resulting in the control of aerobic STm infection. |
format | Online Article Text |
id | pubmed-9184849 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-91848492022-12-08 Vitamin B12 coordinates ileal epithelial cell and microbiota functions to resist Salmonella infection in mice Ge, Yong Zadeh, Mojgan Mohamadzadeh, Mansour J Exp Med Article Deprivation of vitamin B12 (VB12) is linked to various diseases, but the underlying mechanisms in disease progression are poorly understood. Using multiomic approaches, we elucidated the responses of ileal epithelial cells (iECs) and gut microbiome to VB12 dietary restriction. Here, VB12 deficiency impaired the transcriptional and metabolic programming of iECs and reduced epithelial mitochondrial respiration and carnitine shuttling during intestinal Salmonella Typhimurium (STm) infection. Fecal microbial and untargeted metabolomic profiling identified marked changes related to VB12 deficiency, including reductions of metabolites potentially activating mitochondrial β-oxidation in iECs and short-chain fatty acids (SCFAs). Depletion of SCFA-producing microbes by streptomycin treatment decreased the VB12-dependent STm protection. Moreover, compromised mitochondrial function of iECs correlated with declined cell capability to utilize oxygen, leading to uncontrolled oxygen-dependent STm expansion in VB12-deficient mice. Our findings uncovered previously unrecognized mechanisms through which VB12 coordinates ileal epithelial mitochondrial homeostasis and gut microbiota to regulate epithelial oxygenation, resulting in the control of aerobic STm infection. Rockefeller University Press 2022-06-08 /pmc/articles/PMC9184849/ /pubmed/35674742 http://dx.doi.org/10.1084/jem.20220057 Text en © 2022 Ge et al. https://creativecommons.org/licenses/by-nc-sa/4.0/http://www.rupress.org/terms/This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms/). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 International license, as described at https://creativecommons.org/licenses/by-nc-sa/4.0/). |
spellingShingle | Article Ge, Yong Zadeh, Mojgan Mohamadzadeh, Mansour Vitamin B12 coordinates ileal epithelial cell and microbiota functions to resist Salmonella infection in mice |
title | Vitamin B12 coordinates ileal epithelial cell and microbiota functions to resist Salmonella infection in mice |
title_full | Vitamin B12 coordinates ileal epithelial cell and microbiota functions to resist Salmonella infection in mice |
title_fullStr | Vitamin B12 coordinates ileal epithelial cell and microbiota functions to resist Salmonella infection in mice |
title_full_unstemmed | Vitamin B12 coordinates ileal epithelial cell and microbiota functions to resist Salmonella infection in mice |
title_short | Vitamin B12 coordinates ileal epithelial cell and microbiota functions to resist Salmonella infection in mice |
title_sort | vitamin b12 coordinates ileal epithelial cell and microbiota functions to resist salmonella infection in mice |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9184849/ https://www.ncbi.nlm.nih.gov/pubmed/35674742 http://dx.doi.org/10.1084/jem.20220057 |
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