Group presentation

<multi>[fr]logo de l'équipe[en]logo of the team</multi>
logo FRM 2017 avec image de microscopy de bacterie et boites de petri differents couleur

KEY WORDS

Pseudomonas aeruginosa,Francisella tularensis, Klebsiella pneumoniae, antibiotic resistence, toxins, host-pathogen interaction, regulation, signaling, nosocomial infection, anti-virulence

RESEARCH TOPICS

  • P. aeruginosa virulence factors
    * Type III secretion system – structure, function and inhibition
    * Mechanisms of action of ExoU – intracellular trafficking
    * Two partner secretion (TPS) proteins - ExlA and PdtA
  • P. aeruginosa regulatory networks
    * two component systems involved in virulence and biofilms
  • Bacterial resistance to immune system – persistence mechanisms (Pseudomonas and Klebsiella)
  • P. aeruginosa envelope
    * Resistence to antimicrobial peptides (AMPs)
    * Study of the elongasome / divisome
  • Virulence of Francisella tularensis
    * Mechanisms of escape from the innate immune system
    * Virulence factors : Type VI secretion system
  • Monoclonal antibodies (mAbs) targeting bacterial virulence factors
Image de la bactérie Pseudomonas aeruginosa avec ses principaux facteurs de virulences et cible pour l'antibiothérapie
Pseudomonas aeruginosa avec ses principaux facteur de virulences

SPECIFIC TECHNIQUES

  • Bacterial genetics (engineering of KO mutants)
  • Cellular bacteriology
  • Genome-wide screens (CRISPR-Cas and Transposon)
  • NGS (Tn-Seq, WGS, DAP-Seq, CHIP-Seq, RNA-Seq...)
  • Microscopy (Fluorescence microscopy, IF, 3D video, confocal spinning-disk microscopy, automated microscopy and image analysis)
  • Host-pathogen interaction (infection models eg : Galleria mellonella, macrophages, epithelial cells and human blood)
  • Intaer-bacterial competition assay (E. coli, Pseudomonas sp, Acinetobacter, Bacillus sp…)
  • FACS (cytokines measurements, detection and quantification of surface proteins, T3SS toxins injection test using beta-lactamase reporter system, sorting of cells and bacteria)
  • Protein expression and purification (in E. coli and P. aeruginosa),
  • Protein-protein and protein-lipid interactions, lipid raft purification

COLLABORATIONS

  • Harvard Medical School, Boston, US (Steve Lory)
  • Department of Medical Microbiology, Ultrecht, NE (Susan H.M. Rooijakkers)
  • Institut Pasteur, Paris (Carmen Buchrieser)
  • Equipe I2BA ’"Inflammation, infections bactériennes et auto-inflammation", CIRI, Lyon (Thomas Henry)
  • Département de Pharmacochimie Moléculaire, Grenoble (Yung-Sing Wong)
  • Nano-Optics and Forces Team, Institut Néel, Grenoble (Jochen Fick)
  • CHU Avicenne, Bobigny (B. Lamy)
  • IAB, Grenoble (A. Palencia)
  • LGP2, Grenoble (N. Reverdy-Bruas, A. Denneulin)
  • Cermav, Grenoble (Sami Halila)
  • TrEE Team, TIMC LAB, Grenoble (Audrey Le Gouellec)
  • CEA/IRIG/Symmes, Grenoble (Thierry Livache)
  • CEA-LETI, Grenoble (P. Marcoux)
  • « Gen&Chem » Team, Grenoble (Marie-Odile Fauvarque)
  • EDyP-Service, Grenoble (Yohann Couté)
  • IBS, Grenoble (Andrea Dessen and Pascal Poignard)