Articles producció científica> Ciències Mèdiques Bàsiques

Drosophila melanogaster Systemic Infection Model to Study Altered Virulence during Polymicrobial Infection by Aeromonas

  • Datos identificativos

    Identificador: imarina:9295157
    Autores:
    Robert, AlexandreTalagrand-Reboul, EmilieFigueras, Maria-JoseRuimy, RaymondBoyer, LaurentLamy, Brigitte
    Resumen:
    Background: Polymicrobial infections are complex infections associated with worse outcomes compared to monomicrobial infections. We need simple, fast, and cost-effective animal models to assess their still poorly known pathogenesis. Methods: We developed a Drosophila melanogaster polymicrobial infection model for opportunistic pathogens and assessed its capacity to discriminate the effects of bacterial mixtures taken from cases of human polymicrobial infections by Aeromonas strains. A systemic infection was obtained by needle pricking the dorsal thorax of the flies, and the fly survival was monitored over time. Different lineages of the flies were infected by a single strain or paired strains (strain ratio 1:1). Results: Individual strains killed more than 80% of the flies in 20 h. The course of infection could be altered with a microbial mix. The model could distinguish between the diverse effects (synergistic, antagonistic, and no difference) that resulted in a milder, more severe, or similar infection, depending on the paired strain considered. We then investigated the determinants of the effects. The effects were maintained in deficient fly lineages for the main signaling pathways (Toll deficient and IMD deficient), which suggests an active microbe/microbe/host interaction. Conclusion: These results indicate that the D. melanogaster systemic infection model is consistent with the study of polymicrobial infection.
  • Otros:

    Autor según el artículo: Robert, Alexandre; Talagrand-Reboul, Emilie; Figueras, Maria-Jose; Ruimy, Raymond; Boyer, Laurent; Lamy, Brigitte;
    Departamento: Ciències Mèdiques Bàsiques
    Autor/es de la URV: Figueras Salvat, María Josefa
    Palabras clave: Pseudomonas-aeruginosa Polymicrobial infection Opportunistic pathogen Microbial interference Lessons Infection model Host Drosophila melanogaster Disease Bacteria Aeromonas
    Resumen: Background: Polymicrobial infections are complex infections associated with worse outcomes compared to monomicrobial infections. We need simple, fast, and cost-effective animal models to assess their still poorly known pathogenesis. Methods: We developed a Drosophila melanogaster polymicrobial infection model for opportunistic pathogens and assessed its capacity to discriminate the effects of bacterial mixtures taken from cases of human polymicrobial infections by Aeromonas strains. A systemic infection was obtained by needle pricking the dorsal thorax of the flies, and the fly survival was monitored over time. Different lineages of the flies were infected by a single strain or paired strains (strain ratio 1:1). Results: Individual strains killed more than 80% of the flies in 20 h. The course of infection could be altered with a microbial mix. The model could distinguish between the diverse effects (synergistic, antagonistic, and no difference) that resulted in a milder, more severe, or similar infection, depending on the paired strain considered. We then investigated the determinants of the effects. The effects were maintained in deficient fly lineages for the main signaling pathways (Toll deficient and IMD deficient), which suggests an active microbe/microbe/host interaction. Conclusion: These results indicate that the D. melanogaster systemic infection model is consistent with the study of polymicrobial infection.
    Áreas temáticas: Molecular biology Microbiology (medical) Microbiology Infectious diseases Immunology and microbiology (miscellaneous) Immunology and microbiology (all) Immunology and allergy General immunology and microbiology Farmacia
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: mariajose.figueras@urv.cat
    Identificador del autor: 0000-0002-2268-8980
    Fecha de alta del registro: 2024-08-03
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://www.mdpi.com/2076-0817/12/3/405
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Pathogens. 12 (3):
    Referencia de l'ítem segons les normes APA: Robert, Alexandre; Talagrand-Reboul, Emilie; Figueras, Maria-Jose; Ruimy, Raymond; Boyer, Laurent; Lamy, Brigitte; (2023). Drosophila melanogaster Systemic Infection Model to Study Altered Virulence during Polymicrobial Infection by Aeromonas. Pathogens, 12(3), -. DOI: 10.3390/pathogens12030405
    DOI del artículo: 10.3390/pathogens12030405
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2023
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Immunology and Allergy,Immunology and Microbiology (Miscellaneous),Infectious Diseases,Microbiology,Microbiology (Medical),Molecular Biology
    Pseudomonas-aeruginosa
    Polymicrobial infection
    Opportunistic pathogen
    Microbial interference
    Lessons
    Infection model
    Host
    Drosophila melanogaster
    Disease
    Bacteria
    Aeromonas
    Molecular biology
    Microbiology (medical)
    Microbiology
    Infectious diseases
    Immunology and microbiology (miscellaneous)
    Immunology and microbiology (all)
    Immunology and allergy
    General immunology and microbiology
    Farmacia
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