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Fecal microbiota transplant rescues mice from human pathogen mediated sepsis by restoring systemic immunity
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Fecal microbiota transplant rescues mice from human pathogen mediated sepsis by restoring systemic immunity
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Journal Article
Fecal microbiota transplant rescues mice from human pathogen mediated sepsis by restoring systemic immunity
2020
Overview
Death due to sepsis remains a persistent threat to critically ill patients confined to the intensive care unit and is characterized by colonization with multi-drug-resistant healthcare-associated pathogens. Here we report that sepsis in mice caused by a defined four-member pathogen community isolated from a patient with lethal sepsis is associated with the systemic suppression of key elements of the host transcriptome required for pathogen clearance and decreased butyrate expression. More specifically, these pathogens directly suppress interferon regulatory factor 3. Fecal microbiota transplant (FMT) reverses the course of otherwise lethal sepsis by enhancing pathogen clearance via the restoration of host immunity in an interferon regulatory factor 3-dependent manner. This protective effect is linked to the expansion of butyrate-producing Bacteroidetes. Taken together these results suggest that fecal microbiota transplantation may be a treatment option in sepsis associated with immunosuppression.
Sepsis due to multidrug resistant pathogens is the most common cause of death in intensive care units. Here, the authors report that fecal microbiota transplant (FMT) can rescue mice from lethal sepsis of pathogens isolated from stool of a critically ill patient and show that FMT reverses the immunosuppressive effect induced by the pathogen community.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 45/88
/ 64
/ 64/60
/ Animals
/ Fecal Microbiota Transplantation
/ Feces
/ Gastrointestinal Tract - pathology
/ Histone Deacetylase Inhibitors - pharmacology
/ Humanities and Social Sciences
/ Humans
/ Immunity
/ Interferon regulatory factor
/ Interferon regulatory factor 3
/ Interferon Regulatory Factor-3 - metabolism
/ Male
/ Science
/ Sepsis
