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Imaging InlC Secretion to Investigate Cellular Infection by the Bacterial Pathogen Listeria monocytogenes
Published on: September 19, 2013
Molecular determinants of Listeria monocytogenes virulence
Olivier Dussurget1, Javier Pizarro-Cerda, Pascale Cossart
1Unité des Interactions Bactéries-Cellules, Institut Pasteur, INSERM U604, 75015 Paris, France. odussur@pasteur.fr
Abstract:
Listeria monocytogenes is the etiological agent of listeriosis, a severe human foodborne infection characterized by gastroenteritis, meningitis, encephalitis, abortions, and perinatal infections. This gram-positive bacterium is a facultative intracellular pathogen that induces its own uptake into nonphagocytic cells and spreads from cell to cell using an actin-based motility process. This review covers both well-established and recent advances in the characterization of L. monocytogenes virulence determinants and their role in the pathophysiology of listeriosis.
Insights
Listeria monocytogenes causes severe foodborne illness. This review details its virulence factors and how they contribute to listeriosis infection and spread.
Area of Science:
- Microbiology
- Infectious Diseases
- Pathogenesis
Background:
- Listeria monocytogenes is a dangerous foodborne pathogen.
- It causes severe infections like meningitis and abortions.
- It's a facultative intracellular pathogen.
Purpose of the Study:
- To review virulence factors of L. monocytogenes.
- To explore their role in listeriosis pathophysiology.
- To cover established and recent advances.
Main Methods:
- Literature review of established and recent research.
- Analysis of L. monocytogenes virulence determinants.
- Examination of cellular mechanisms in infection.
Main Results:
- L. monocytogenes utilizes specific virulence factors for cell invasion.
- Actin-based motility facilitates cell-to-cell spread.
- Pathophysiology involves intracellular survival and dissemination.
Conclusions:
- Understanding virulence factors is key to combating listeriosis.
- Recent advances provide new insights into L. monocytogenes pathogenesis.
- Targeting these determinants may offer therapeutic strategies.
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