The unforeseen intracellular lifestyle of Enterococcus faecalis in hepatocytes

Enterococcus faecalis is a bacterial species present at a subdominant level in the human gut microbiota. This commensal turns into an opportunistic pathogen under specific conditions involving dysbiosis and host immune deficiency. E. faecalis is one of the rare pathobionts identified to date as cont...

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Main Authors: Natalia Nunez, Aurélie Derré-Bobillot, Nicolas Trainel, Goran Lakisic, Alexandre Lecomte, Françoise Mercier-Nomé, Anne-Marie Cassard, Hélène Bierne, Pascale Serror, Cristel Archambaud
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:Gut Microbes
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Online Access:https://www.tandfonline.com/doi/10.1080/19490976.2022.2058851
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author Natalia Nunez
Aurélie Derré-Bobillot
Nicolas Trainel
Goran Lakisic
Alexandre Lecomte
Françoise Mercier-Nomé
Anne-Marie Cassard
Hélène Bierne
Pascale Serror
Cristel Archambaud
author_facet Natalia Nunez
Aurélie Derré-Bobillot
Nicolas Trainel
Goran Lakisic
Alexandre Lecomte
Françoise Mercier-Nomé
Anne-Marie Cassard
Hélène Bierne
Pascale Serror
Cristel Archambaud
author_sort Natalia Nunez
collection DOAJ
description Enterococcus faecalis is a bacterial species present at a subdominant level in the human gut microbiota. This commensal turns into an opportunistic pathogen under specific conditions involving dysbiosis and host immune deficiency. E. faecalis is one of the rare pathobionts identified to date as contributing to liver damage in alcoholic liver disease. We have previously observed that E. faecalis is internalized in hepatocytes. Here, the survival and fate of E. faecalis was examined in hepatocytes, the main epithelial cell type in the liver. Although referred to as an extracellular pathogen, we demonstrate that E. faecalis is able to survive and divide in hepatocytes, and form intracellular clusters in two distinct hepatocyte cell lines, in primary mouse hepatocytes, as well as in vivo. This novel process extends to kidney cells. Unraveling the intracellular lifestyle of E. faecalis, our findings contribute to the understanding of pathobiont-driven diseases.
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1949-0984
language English
publishDate 2022-12-01
publisher Taylor & Francis Group
record_format Article
series Gut Microbes
spelling doaj-art-4da5d23142594d7dbc2b98bfe5f361042025-08-20T02:29:59ZengTaylor & Francis GroupGut Microbes1949-09761949-09842022-12-0114110.1080/19490976.2022.2058851The unforeseen intracellular lifestyle of Enterococcus faecalis in hepatocytesNatalia Nunez0Aurélie Derré-Bobillot1Nicolas Trainel2Goran Lakisic3Alexandre Lecomte4Françoise Mercier-Nomé5Anne-Marie Cassard6Hélène Bierne7Pascale Serror8Cristel Archambaud9Université -Saclay, Inrae, AgroParisTech, Micalis Institute, Jouy-en-Josas, FranceUniversité -Saclay, Inrae, AgroParisTech, Micalis Institute, Jouy-en-Josas, FranceUniversité Paris-Saclay, Inserm U996, Inflammation, Microbiome and Immunosurveillance, Clamart, FranceUniversité -Saclay, Inrae, AgroParisTech, Micalis Institute, Jouy-en-Josas, FranceUniversité -Saclay, Inrae, AgroParisTech, Micalis Institute, Jouy-en-Josas, FranceUniversité Paris-Saclay, INSERM, CNRS, Institut Paris Saclay d’Innovation Thérapeutique, Châtenay-Malabry, FranceUniversité Paris-Saclay, Inserm U996, Inflammation, Microbiome and Immunosurveillance, Clamart, FranceUniversité -Saclay, Inrae, AgroParisTech, Micalis Institute, Jouy-en-Josas, FranceUniversité -Saclay, Inrae, AgroParisTech, Micalis Institute, Jouy-en-Josas, FranceUniversité -Saclay, Inrae, AgroParisTech, Micalis Institute, Jouy-en-Josas, FranceEnterococcus faecalis is a bacterial species present at a subdominant level in the human gut microbiota. This commensal turns into an opportunistic pathogen under specific conditions involving dysbiosis and host immune deficiency. E. faecalis is one of the rare pathobionts identified to date as contributing to liver damage in alcoholic liver disease. We have previously observed that E. faecalis is internalized in hepatocytes. Here, the survival and fate of E. faecalis was examined in hepatocytes, the main epithelial cell type in the liver. Although referred to as an extracellular pathogen, we demonstrate that E. faecalis is able to survive and divide in hepatocytes, and form intracellular clusters in two distinct hepatocyte cell lines, in primary mouse hepatocytes, as well as in vivo. This novel process extends to kidney cells. Unraveling the intracellular lifestyle of E. faecalis, our findings contribute to the understanding of pathobiont-driven diseases.https://www.tandfonline.com/doi/10.1080/19490976.2022.2058851Enterococcus faecalispathobionthepatocytesintracellular lifestyleliver
spellingShingle Natalia Nunez
Aurélie Derré-Bobillot
Nicolas Trainel
Goran Lakisic
Alexandre Lecomte
Françoise Mercier-Nomé
Anne-Marie Cassard
Hélène Bierne
Pascale Serror
Cristel Archambaud
The unforeseen intracellular lifestyle of Enterococcus faecalis in hepatocytes
Gut Microbes
Enterococcus faecalis
pathobiont
hepatocytes
intracellular lifestyle
liver
title The unforeseen intracellular lifestyle of Enterococcus faecalis in hepatocytes
title_full The unforeseen intracellular lifestyle of Enterococcus faecalis in hepatocytes
title_fullStr The unforeseen intracellular lifestyle of Enterococcus faecalis in hepatocytes
title_full_unstemmed The unforeseen intracellular lifestyle of Enterococcus faecalis in hepatocytes
title_short The unforeseen intracellular lifestyle of Enterococcus faecalis in hepatocytes
title_sort unforeseen intracellular lifestyle of enterococcus faecalis in hepatocytes
topic Enterococcus faecalis
pathobiont
hepatocytes
intracellular lifestyle
liver
url https://www.tandfonline.com/doi/10.1080/19490976.2022.2058851
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