The potential probiotic lactobacillus rhamnosus CNCM 1-3690 strain protects the intestinal barrier by stimulating both mucus production and cytoprotective response

Autor: Martin Rosique, Rebeca, Chamignon, Celia, Mhedbi-Hajri, Nadia, Chain, Florian, Derrien, Muriel, Escribano Vazquez, Unai, Garault, Peggy, Cotillard, Aurélie, Hang Phuong Pham,, Chervaux, Christian, Bermudez Humaran, Luis, Smokvina, Tamara, Langella, Philippe
Přispěvatelé: MICrobiologie de l'ALImentation au Service de la Santé (MICALIS), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Université Paris Saclay (COmUE), Nutricia Research, ILTOO Pharma
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Scientific Reports
Scientific Reports, Nature Publishing Group, 2019, 9, pp.1-14. ⟨10.1038/s41598-019-41738-5⟩
Scientific Reports (9), 1-14. (2019)
ISSN: 2045-2322
DOI: 10.1038/s41598-019-41738-5⟩
Popis: International audience; The gut barrier plays an important role in human health. When barrier function is impaired, altered permeability and barrier dysfunction can occur, leading to inflammatory bowel diseases, irritable bowel syndrome or obesity. Several bacteria, including pathogens and commensals, have been found to directly or indirectly modulate intestinal barrier function. The use of probiotic strains could be an important landmark in the management of gut dysfunction with a clear impact on the general population. Previously, we found that Lactobacillus rhamnosus CNCM 1-3690 can protect intestinal barrier functions in mice inflammation model. Here, we investigated its mechanism of action. Our results show that CNCM 1-3690 can (i) physically maintain modulated goblet cells and the mucus layer and (ii) counteract changes in local and systemic lymphocytes. Furthermore, mice colonic transcriptome analysis revealed that CNCM 1-3690 enhances the expression of genes related to healthy gut permeability: motility and absorption, cell proliferation; and protective functions by inhibiting endogenous proteases. Finally, Spa FED pili are clearly important effectors since an L. rhamnosus Delta spaF mutant failed to provide the same benefits as the wild type strain. Taken together, our data suggest that CNCM 1-3690 restores impaired intestinal barrier functions via anti-inflammatory and cytoprotective responses.
Databáze: OpenAIRE
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