Cited by 17Bacillus and Francisella bacterial researchImmune Response and InflammationImmune responses and vaccinations

Influence of the Bcg Locus on Natural Resistance to Primary Infection with the Facultative Intracellular Bacterium Francisella tularensis in Mice

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Kovářová, Hana, Hernychová, Lenka, Hajdúch, Marián, Šírová, M., Macela, Aleš·2000·Infection and Immunity

Abstract

The implication of the Bcg locus in the control of natural resistance to infection with a live vaccine strain (LVS) of the intracellular pathogen Francisella tularensis was studied. Analysis of phenotypic expression of natural resistance and susceptibility was performed using mouse strains congenic at the Bcg locus. Comparison of the kinetics of bacterial colonization of spleen showed that B10.A.Bcg(r) mice were extremely susceptible during early phases of primary sublethal infection, while their congenic C57BL/10N [Bcg(s)] counterparts could be classified as resistant to F. tularensis LVS infection according to the 2-log-lower bacterial CFU within the tissue as long as 5 days after infection. Different phenotypes of Bcg congenic mice were associated with differential expression of the cytokines tumor necrosis factor alpha, interleukin-10, and gamma interferon and production of reactive oxygen intermediates. These results strongly suggest that the Bcg locus, which is close or identical to the Nramp1 gene, controls natural resistance to infection by F. tularensis and that its effect is the opposite of that observed for other Bcg-controlled pathogens.

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Crossref · 10.1128/iai.68.3.1480-1484.2000

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  • Slc11a1 coding rather than regulatory region variation is relevant to a broader spectrum of intracellular infectious agents including Francisella tularensis and S. Typhimurium.

    “coding rather than in the regulatory region of Slc11a1, which is relevant to a broader spectrum of intracellular infectious agents also including Francisella tularensis and S. Typhimurium (Govoni et al., 1996;Kovarova et al., 2000;Vidal et al., 1995).”

    From Iron in infection and immunity (2020) · cites this paper as Kovarova et al., 2000

  • In both humans and mice, NRAMP1 function affects the balance between proinflammatory mediators such as TNF and IFN-γ and antiinflammatory mediators such as IL-10 towards adequate production of the former.

    “In both humans and mice, the function of NRAMP1 affects the balance between proinflammatory mediators such as TNF and IFN-γ and antiinflammatory ones such as IL-10 towards adequate production of the former (Awomoyi et al., 2002;Fritsche et al., 2003Fritsche et al., , 2008;;Kovarova et al., 2000).”

    From Iron in infection and immunity (2020) · cites this paper as Kovarova et al., 2000

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Authors
Kovářová, H., Hernychová, L., Hajdúch, M., Šírová, M., & Macela, A.
Affiliations
  • <!--label omitted: 1-->Institute for Immunology and Radiobiology, Purkyně Military Medical Academy, 500 01 Hradec Králové,1
  • <!--label omitted: 2-->Department of Pediatrics, Faculty of Medicine, Palacky University and Faculty Hospital, 775 15 Olomouc,2 and
  • <!--label omitted: 3-->Institute of Microbiology, Academy of Science of the Czech Republic, 142 20 Prague,3 Czech Republic
Venue
Infection and Immunity
Published
2000-03
Volume
68
Issue
3
Pages
1480-1484
ISSN
  • 0019-9567 (ISSN-L)
  • 1098-5522
OpenAlex
W2141910949
Cited by
17
References
36
Citations by year
2021: 1 · 2020: 2 · 2017: 3 · 2016: 1
FWCI
0.60
Type
journal article
Language
en
Open access
Locations
  • Infection and Immunity (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacillus and Francisella bacterial research
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
Keywords
natural resistance to infection, Francisella tularensis, live vaccine strain, facultative intracellular bacteria, NRAMP1, congenic mice, TNF-α, IL-10, interferon-gamma, reactive oxygen species, host genetic resistance
MeSH terms
Natural Resistance-associated Macrophage Protein 1, Animals, Carrier Proteins, Cells, Cultured, Chromosome Mapping, Female, Immunity, Innate, Membrane Proteins, Mice, Inbred C57BL, Nitrites, Spleen, Tularemia, Cytokines, Reactive Oxygen Species, Cation Transport Proteins, Mice

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