{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T23:39:43Z","timestamp":1790293183571,"version":"4.1.0"},"reference-count":59,"publisher":"American Society for Microbiology","issue":"6","license":[{"start":{"date-parts":[[2013,12,10]],"date-time":"2013-12-10T00:00:00Z","timestamp":1386633600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/"},{"start":{"date-parts":[[2013,12,31]],"date-time":"2013-12-31T00:00:00Z","timestamp":1388448000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["mBio"],"published-print":{"date-parts":[[2013,12,31]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            The intestinal tract is the largest reservoir of microbes in the human body. The intestinal microbiota is thought to be able to modulate alterations of the gut induced by enteropathogens, thereby maintaining homeostasis.\n            <jats:named-content content-type=\"genus-species\">Listeria monocytogenes<\/jats:named-content>\n            is the agent of listeriosis, an infection transmitted to humans upon ingestion of contaminated food. Crossing of the intestinal barrier is a critical step of the infection before dissemination into deeper organs. Here, we investigated the role of the intestinal microbiota in the regulation of host protein-coding genes and microRNA (miRNA or miR) expression during\n            <jats:italic>Listeria<\/jats:italic>\n            infection. We first established the intestinal miRNA signatures corresponding to the 10 most highly expressed miRNAs in the murine ileum of conventional and germfree mice, noninfected and infected with\n            <jats:italic>Listeria<\/jats:italic>\n            . Next, we identified 6 miRNAs whose expression decreased upon\n            <jats:italic>Listeria<\/jats:italic>\n            infection in conventional mice. Strikingly, five of these miRNA expression variations (in miR-143, miR-148a, miR-200b, miR-200c, and miR-378) were dependent on the presence of the microbiota. In addition, as is already known, protein-coding genes were highly affected by infection in both conventional and germfree mice. By crossing bioinformatically the predicted targets of the miRNAs to our whole-genome transcriptomic data, we revealed an miRNA-mRNA network that suggested miRNA-mediated global regulation during intestinal infection. Other recent studies have revealed an miRNA response to either bacterial pathogens or commensal bacteria. In contrast, our work provides an unprecedented insight into the impact of the intestinal microbiota on host transcriptional reprogramming during infection by a human pathogen.\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>IMPORTANCE<\/jats:bold>\n            While the crucial role of miRNAs in regulating the host response to bacterial infection is increasingly recognized, the involvement of the intestinal microbiota in the regulation of miRNA expression has not been explored in detail. Here, we investigated the impact of the intestinal microbiota on the regulation of protein-coding genes and miRNA expression in a host infected by\n            <jats:named-content content-type=\"genus-species\">L. monocytogenes<\/jats:named-content>\n            , a food-borne pathogen. We show that the microbiota interferes with the microRNA response upon oral\n            <jats:italic>Listeria<\/jats:italic>\n            infection and identify several protein-coding target genes whose expression correlates inversely with that of the miRNA. Further investigations of the regulatory networks involving miR-143, miR-148a, miR-200b, miR-200c, and miR-378 will provide new insights into the impact of the intestinal microbiota on the host upon bacterial infection.\n          <\/jats:p>","DOI":"10.1128\/mbio.00707-13","type":"journal-article","created":{"date-parts":[[2013,12,11]],"date-time":"2013-12-11T05:13:02Z","timestamp":1386738782000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":73,"title":["The Intestinal Microbiota Interferes with the microRNA Response upon Oral\n            <i>Listeria<\/i>\n            Infection"],"prefix":"10.1128","volume":"4","author":[{"given":"Cristel","family":"Archambaud","sequence":"first","affiliation":[{"name":"Institut Pasteur, Unit\u00e9 des Interactions Bact\u00e9ries-Cellules, Paris, France"},{"name":"INSERM, U604, Paris, France"},{"name":"INRA, USC2020, Paris, 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