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Journal Articles Mucosal Immunology Year : 2020

New insights into intestinal phages

Abstract

The intestinal microbiota plays important roles in human health. This last decade, the viral fraction of the intestinal microbiota, composed essentially of phages that infect bacteria, received increasing attention. Numerous novel phage families have been discovered in parallel with the development of viral metagenomics. However, since the discovery of intestinal phages by d'Herelle in 1917, our understanding of the impact of phages on gut microbiota structure remains scarce. Changes in viral community composition have been observed in several diseases. However, whether these changes reflect a direct involvement of phages in diseases etiology or simply result from modifications in bacterial composition is currently unknown. Here we present an overview of the current knowledge in intestinal phages, their identity, lifestyles, and their possible effects on the gut microbiota. We also gather the main data on phage interactions with the immune system, with a particular emphasis on recent findings.
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hal-02912995 , version 1 (07-08-2020)

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Romain Sausset, Marie-Agnès Petit, V. Gaboriau-Routhiau, Marianne de Paepe. New insights into intestinal phages. Mucosal Immunology, 2020, 13 (2), pp.205-215. ⟨10.1038/s41385-019-0250-5⟩. ⟨hal-02912995⟩
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