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© Therese Couderc, Marc Lecuit
Publication : Current opinion in microbiology

Listeriosis, a model infection to study host-pathogen interactions in vivo.

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Current opinion in microbiology - 16 Dec 2021

Kammoun H, Kim M, Hafner L, Gaillard J, Disson O, Lecuit M,

Link to Pubmed [PMID] – 34923331

Link to DOI – S1369-5274(21)00174-010.1016/j.mib.2021.11.015

Curr Opin Microbiol 2021 Dec; 66(): 11-20

Listeria monocytogenes (Lm) is a foodborne pathogen and the etiological agent of listeriosis. This facultative intracellular Gram-positive bacterium has the ability to colonize the intestinal lumen, cross the intestinal, blood-brain and placental barriers, leading to bacteremia, neurolisteriosis and maternal-fetal listeriosis. Lm is a model microorganism for the study of the interplay between a pathogenic microbe, host tissues and microbiota in vivo. Here we review how animal models permissive to Lm-host interactions allow deciphering some of the key steps of the infectious process, from the intestinal lumen to the crossing of host barriers and dissemination within the host. We also highlight recent investigations using tagged Lm and clinically relevant strains that have shed light on within-host dynamics and the purifying selection of Lm virulence factors. Studying Lm infection in vivo is a way forward to explore host biology and unveil the mechanisms that have selected its capacity to closely associate with its vertebrate hosts.

https://pubmed.ncbi.nlm.nih.gov/34923331