Cited by 140Listeria monocytogenes in Food SafetyBacterial Genetics and BiotechnologyProbiotics and Fermented Foods

Regulation of virulence genes in Listeria

Kreft, Jürgen, Vázquez-Boland, José A.·2001·International Journal of Medical Microbiology

Abstract

As in all pathogenic bacteria, virulence of the facultative intracellular Listeria species is a multifactorial trait. The expression of the bacterial genes involved in the different steps of the infectious process--invasion, intracellular multiplication and spreading--is temporally and spatially controlled, thus ensuring the presence of the respective gene products at the right moment and place. So far, one network which is involved in the regulation of listerial virulence, the PrfA regulon, has been characterized rather well. The key element of this regulon, PrfA, belongs to the Crp/Fnr family of transcriptional regulators. Its synthesis and activity are influenced by a variety of physico-chemical signals outside and inside of eukaryotic host cells. The analysis of virulence gene expression in vivo, i.e. in infected host cells, indicates that yet uncharacterized bacterial factors other than PrfA, and possibly also host factors, modulate the expression of the PrfA regulon. Essentially nothing is known about the signal transduction pathways involved in the observed differential expression of virulence genes. Fermentable carbon sources seem to have a particular role in virulence gene regulation. In addition to the PrfA regulon, the Clp stress proteins have an impact on Listeria virulence. These two regulons interact with each other by an unknown mechanism.

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Crossref · 10.1078/1438-4221-00111

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  • Expression of Fur is negatively regulated by PerR, a Fur homologue involved in oxidative stress response.

    “It has been shown that expression of Fur is negatively regulated by PerR, a Fur homologue that is involved in the oxidative stress response.”
  • Fourteen Fur-regulated genes have been identified in L. monocytogenes, including genes encoding Fe2+ transporters, ferrichrome ABC transporters, and Fe storage proteins.

    “Fourteen Fur-regulated genes have been identified in L. monocytogenes, including genes that encode Fe2+ transporters and ferrichrome ABC transporters and proteins involved in Fe storage [56, 57].”

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Authors
Kreft, J., & Vázquez-Boland, J. A.
Affiliations
University of Würzburg (DE)
Corresponding author
Kreft, Jürgen
Venue
International Journal of Medical Microbiology
Publisher
Elsevier BV
Published
2001
Volume
291
Issue
2
Pages
145-157
ISSN
1438-4221 (ISSN-L)
OpenAlex
W2073528230
Cited by
140
References
80
Citations by year
2026: 3 · 2024: 1 · 2023: 4 · 2022: 3 · 2021: 2 · 2020: 1 · 2019: 6 · 2018: 3 · 2017: 2 · 2016: 7 · 2015: 2 · 2014: 5 · 2013: 6 · 2012: 4
FWCI
8.04
Type
journal article
Language
en
Open access
closed
Locations
  • International Journal of Medical Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • European Commission (BMH4-CT96-0659)
  • Deutsche Forschungsgemeinschaft (KR 1206/3-2)
  • Dirección General de Enseñanza Superior e Investigación Científica (BMC2000-0553, DGESIC PB97-0327-C03-01)
  • Verband der Chemischen Industrie
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Listeria monocytogenes in Food Safety
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
Keywords
Listeria, virulence gene regulation, intracellular bacterial pathogens, signal transduction, carbon source regulation, host-pathogen interaction
MeSH terms
Bacterial Proteins, Listeria monocytogenes, Peptide Termination Factors, Virulence, Trans-Activators, Gene Expression Regulation, Bacterial, Molecular Chaperones

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