Articles producció científica> Ciències Mèdiques Bàsiques

RNAi-Based Functional Genomics Identifies New Virulence Determinants in Mucormycosis

  • Identification data

    Identifier: PC:2549
    Authors:
    Javier CapillaTrung Anh TrieuMar¿ía Isabel Navarro-MendozaCarlos Pérez-ArquesMarta SanchisPatricia Navarro-RodriguezLoida Lopez-FernandezSantiago Torres-MartínezVictoriano GarreRosa María Ruiz-VázquezFrancisco E. Nicolás
    Abstract:
    Mucorales are an emerging group of human pathogens that are responsible for the lethal disease mucormycosis. Unfortunately, functional studies on the genetic factors behind the virulence of these organisms are hampered by their limited genetic tractability, since they are reluctant to classical genetic tools like transposable elements or gene mapping. Here, we describe an RNAi-based functional genomic platform that allows the identification of new virulence factors through a forward genetic approach firstly described in Mucorales. This platform contains a whole-genome collection of Mucor circinelloides silenced transformants that presented a broad assortment of phenotypes related to the main physiological processes in fungi, including virulence, hyphae morphology, mycelial and yeast growth, carotenogenesis and asexual sporulation. Selection of transformants with reduced virulence allowed the identification of mcplD, which encodes a Phospholipase D, and mcmyo5, encoding a probably essential cargo transporter of the Myosin V family, as required for a fully virulent phenotype of M. circinelloides. Knock-out mutants for those genes showed reduced virulence in both Galleria mellonella and Mus musculus models, probably due to a delayed germination and polarized growth within macrophages. This study provides a robust approach to study virulence in Mucorales and as a proof of concept identified new virulence determinants in M. circinelloides that could represent promising targets for future antifungal therapies.
  • Others:

    Author, as appears in the article.: Javier Capilla; Trung Anh Trieu; Mar¿ía Isabel Navarro-Mendoza; Carlos Pérez-Arques; Marta Sanchis; Patricia Navarro-Rodriguez; Loida Lopez-Fernandez; Santiago Torres-Martínez; Victoriano Garre; Rosa María Ruiz-Vázquez; Francisco E. Nicolás
    Department: Ciències Mèdiques Bàsiques
    URV's Author/s: CAPILLA LUQUE, JAVIER; Trung Anh Trieu; Mar¿ía Isabel Navarro-Mendoza; Carlos Pérez-Arques; Marta Sanchis; Patricia Navarro-Rodriguez; Loida Lopez-Fernandez; Santiago Torres-Martínez; Victoriano Garre; Rosa María Ruiz-Vázquez; Francisco E. Nicolás
    Keywords: Està en blanc
    Abstract: Mucorales are an emerging group of human pathogens that are responsible for the lethal disease mucormycosis. Unfortunately, functional studies on the genetic factors behind the virulence of these organisms are hampered by their limited genetic tractability, since they are reluctant to classical genetic tools like transposable elements or gene mapping. Here, we describe an RNAi-based functional genomic platform that allows the identification of new virulence factors through a forward genetic approach firstly described in Mucorales. This platform contains a whole-genome collection of Mucor circinelloides silenced transformants that presented a broad assortment of phenotypes related to the main physiological processes in fungi, including virulence, hyphae morphology, mycelial and yeast growth, carotenogenesis and asexual sporulation. Selection of transformants with reduced virulence allowed the identification of mcplD, which encodes a Phospholipase D, and mcmyo5, encoding a probably essential cargo transporter of the Myosin V family, as required for a fully virulent phenotype of M. circinelloides. Knock-out mutants for those genes showed reduced virulence in both Galleria mellonella and Mus musculus models, probably due to a delayed germination and polarized growth within macrophages. This study provides a robust approach to study virulence in Mucorales and as a proof of concept identified new virulence determinants in M. circinelloides that could represent promising targets for future antifungal therapies.
    Research group: Unitat de Micologia i Microbiologia Ambiental
    Thematic Areas: Health sciences Ciencias de la salud Ciències de la salut
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 1553-7374
    Author identifier: N/P; N/P; N/P; N/P; N/P; N/P; N/P; N/P; N/P; N/P; N/P
    Record's date: 2017-02-16
    Journal volume: 13
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1006150
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Article's DOI: 10.1371/journal.ppat.1006150
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2017
    First page: e1006150
    Publication Type: Article Artículo Article
  • Keywords:

    Fongs patògens
    Micosi
    Està en blanc
    Health sciences
    Ciencias de la salud
    Ciències de la salut
    1553-7374
  • Documents:

  • Cerca a google

    Search to google scholar