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© Pierre Gounon
Entrée de Listeria dans une cellule épithéliale (Grossissement X 10000). Image colorisée.
Publication : Trends in microbiology

Listeriolysin O: the Swiss army knife of Listeria

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Trends in microbiology - 30 May 2012

Hamon MA, Ribet D, Stavru F, Cossart P

Link to Pubmed [PMID] – 22652164

Trends Microbiol. 2012 Aug;20(8):360-8

Listeriolysin O (LLO) is a toxin produced by Listeria monocytogenes, an opportunistic bacterial pathogen responsible for the disease listeriosis. This disease starts with the ingestion of contaminated foods and mainly affects immunocompromised individuals, newborns, and pregnant women. In the laboratory, L. monocytogenes is used as a model organism to study processes such as cell invasion, intracellular survival, and cell-to-cell spreading, as this Gram-positive bacterium has evolved elaborate molecular strategies to subvert host cell functions. LLO is a major virulence factor originally shown to be crucial for bacterial escape from the internalization vacuole after entry into cells. However, recent studies are revisiting the role of LLO during infection and are revealing new insights into the action of LLO, in particular before bacterial entry. These latest findings along with their impact on the infectious process will be discussed.

http://www.ncbi.nlm.nih.gov/pubmed/22652164