Mitigation of Expression of Virulence Genes in Legionella pneumophila Internalized in the Free-Living Amoeba Willaertia magna C2c Maky
| Autor: | Laurent Bezin, Sandrine Demanèche, Jacques Bodennec, Rayane Mouh Mameri |
|---|---|
| Přispěvatelé: | Centre de recherche en neurosciences de Lyon (CRNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Microbiology (medical)
Legionella pneumophila [SDV]Life Sciences [q-bio] lcsh:Medicine Virulence Human pathogen Biology Article Microbiology 03 medical and health sciences parasitic diseases medicine Willaertia magna C2c Maky Immunology and Allergy free-living amoebae (FLA) Molecular Biology Gene Pathogen ComputingMilieux_MISCELLANEOUS 030304 developmental biology 0303 health sciences General Immunology and Microbiology 030306 microbiology Intracellular parasite lcsh:R fungi virulence genes medicine.disease biology.organism_classification bacterial infections and mycoses 3. Good health respiratory tract diseases Infectious Diseases Acanthamoeba castellanii bacteria Legionnaires' disease |
| Zdroj: | Pathogens Volume 9 Issue 6 Pathogens, MDPI, 2020, 9 (6), pp.447. ⟨10.3390/pathogens9060447⟩ Pathogens, Vol 9, Iss 447, p 447 (2020) |
| ISSN: | 2076-0817 |
| DOI: | 10.3390/pathogens9060447 |
| Popis: | Legionella pneumophila is a human pathogen responsible for a severe form of pneumonia named Legionnaire disease. Its natural habitat is aquatic environments, being in a free state or intracellular parasites of free-living amoebae, such as Acanthamoeba castellanii. This pathogen is able to replicate within some amoebae. Willaertia magna C2c Maky, a non-pathogenic amoeba, was previously demonstrated to resist to L. pneumophila and even to be able to eliminate the L. pneumophila strains Philadelphia, Lens, and Paris. Here, we studied the induction of seven virulence genes of three L. pneumophila strains (Paris, Philadelphia, and Lens) within W. magna C2c Maky in comparison within A. castellanii and with the gene expression level of L. pneumophila strains alone used as controls. We defined a gene expression-based virulence index to compare easily and without bias the transcript levels in different conditions and demonstrated that W. magna C2c Maky did not increase the virulence of L. pneumophila strains in contrast to A. castellanii. These results confirmed the non-permissiveness of W. magna C2c Maky toward L. pneumophila strains. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|