Evaluating the effect of Clostridium difficile conditioned medium on fecal microbiota community structure

Abstract Clostridium difficile infection (CDI) is typically associated with disturbed gut microbiota and changes related to decreased colonization resistance against C. difficile are well described. However, nothing is known about possible effects of C. difficile on gut microbiota restoration during...

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Autores principales: Sabina Horvat, Aleksander Mahnic, Martin Breskvar, Saso Dzeroski, Maja Rupnik
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/eaa16ff3bd484cab85affe9033708e48
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spelling oai:doaj.org-article:eaa16ff3bd484cab85affe9033708e482021-12-02T15:05:18ZEvaluating the effect of Clostridium difficile conditioned medium on fecal microbiota community structure10.1038/s41598-017-15434-12045-2322https://doaj.org/article/eaa16ff3bd484cab85affe9033708e482017-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-15434-1https://doaj.org/toc/2045-2322Abstract Clostridium difficile infection (CDI) is typically associated with disturbed gut microbiota and changes related to decreased colonization resistance against C. difficile are well described. However, nothing is known about possible effects of C. difficile on gut microbiota restoration during or after CDI. In this study, we have mimicked such a situation by using C. difficile conditioned medium of six different C. difficile strains belonging to PCR ribotypes 027 and 014/020 for cultivation of fecal microbiota. A marked decrease of microbial diversity was observed in conditioned medium of both tested ribotypes. The majority of differences occurred within the phylum Firmicutes, with a general decrease of gut commensals with putative protective functions (i.e. Lactobacillus, Clostridium_XIVa) and an increase in opportunistic pathogens (i.e. Enterococcus). Bacterial populations in conditioned medium differed between the two C. difficile ribotypes, 027 and 014/020 and are likely associated with nutrient availability. Fecal microbiota cultivated in medium conditioned by E. coli, Salmonella Enteritidis or Staphylococcus epidermidis grouped together and was clearly different from microbiota cultivated in C. difficile conditioned medium suggesting that C. difficile effects are specific. Our results show that the changes observed in microbiota of CDI patients are partially directly influenced by C. difficile.Sabina HorvatAleksander MahnicMartin BreskvarSaso DzeroskiMaja RupnikNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Sabina Horvat
Aleksander Mahnic
Martin Breskvar
Saso Dzeroski
Maja Rupnik
Evaluating the effect of Clostridium difficile conditioned medium on fecal microbiota community structure
description Abstract Clostridium difficile infection (CDI) is typically associated with disturbed gut microbiota and changes related to decreased colonization resistance against C. difficile are well described. However, nothing is known about possible effects of C. difficile on gut microbiota restoration during or after CDI. In this study, we have mimicked such a situation by using C. difficile conditioned medium of six different C. difficile strains belonging to PCR ribotypes 027 and 014/020 for cultivation of fecal microbiota. A marked decrease of microbial diversity was observed in conditioned medium of both tested ribotypes. The majority of differences occurred within the phylum Firmicutes, with a general decrease of gut commensals with putative protective functions (i.e. Lactobacillus, Clostridium_XIVa) and an increase in opportunistic pathogens (i.e. Enterococcus). Bacterial populations in conditioned medium differed between the two C. difficile ribotypes, 027 and 014/020 and are likely associated with nutrient availability. Fecal microbiota cultivated in medium conditioned by E. coli, Salmonella Enteritidis or Staphylococcus epidermidis grouped together and was clearly different from microbiota cultivated in C. difficile conditioned medium suggesting that C. difficile effects are specific. Our results show that the changes observed in microbiota of CDI patients are partially directly influenced by C. difficile.
format article
author Sabina Horvat
Aleksander Mahnic
Martin Breskvar
Saso Dzeroski
Maja Rupnik
author_facet Sabina Horvat
Aleksander Mahnic
Martin Breskvar
Saso Dzeroski
Maja Rupnik
author_sort Sabina Horvat
title Evaluating the effect of Clostridium difficile conditioned medium on fecal microbiota community structure
title_short Evaluating the effect of Clostridium difficile conditioned medium on fecal microbiota community structure
title_full Evaluating the effect of Clostridium difficile conditioned medium on fecal microbiota community structure
title_fullStr Evaluating the effect of Clostridium difficile conditioned medium on fecal microbiota community structure
title_full_unstemmed Evaluating the effect of Clostridium difficile conditioned medium on fecal microbiota community structure
title_sort evaluating the effect of clostridium difficile conditioned medium on fecal microbiota community structure
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/eaa16ff3bd484cab85affe9033708e48
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