title: Survival games at the dinner table: regulation of Enterobacterial virulence through nutrient sensing and acquisition.
abstract: The ability of bacterial pathogens to colonize specific host niches is largely dependent on acquisition of essential metabolites and co-factors for growth and sensing and adapting in response to specific environmental cues. Nutrient availability in host environments is strongly influenced by host physiology and immunity, diet, and competition with other members of the host microbiota. Rapid adaptation to environmental cues and nutrient availability is a hallmark of bacterial fitness and virulence. This adaptability requires complex regulatory networks that tightly link sensing of nutrient availability to expression of virulence genes accordingly. This review focuses on recent findings highlighting the ability of bacterial pathogens to compete for nutrient acquisition in the host-microbiota environment, and emphasizes key aspects mediating the multi-tiered regulatory cascades that coordinately control nutrient sensing and expression of virulence genes in pathogenic Enterobacteria.
authors.affiliation: INRS-Institut Armand Frappier, Laval, Québec, Canada; Centre de Recherche en Infectiologie Porcine et Avicole (CRIPA), Université de Montréal, Faculté de Médecine Vétérinaire, Saint-Hyacinthe, Québec, Canada.
authors.forename: Gaëlle
authors.initials: G
authors.lastname: Porcheron
authors.affiliation: INRA, UMR1282 Infectiologie et Santé Publique, 37 380 Nouzilly, France; Université François Rabelais de Tours, UMR1282 Infectiologie et Santé Publique, 37 000 Tours, France.
authors.forename: Catherine
authors.initials: C
authors.lastname: Schouler
authors.affiliation: INRS-Institut Armand Frappier, Laval, Québec, Canada; Centre de Recherche en Infectiologie Porcine et Avicole (CRIPA), Université de Montréal, Faculté de Médecine Vétérinaire, Saint-Hyacinthe, Québec, Canada. Electronic address: charles.dozois@inrs.ca.
authors.forename: Charles M
authors.initials: CM
authors.lastname: Dozois
mesh_terms: D000818:Animals; D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism; D004755:Enterobacteriaceae / Q000235:genetics / Q000254:growth & development / Q000378:metabolism* / Q000472:pathogenicity*; D004756:Enterobacteriaceae Infections / Q000378:metabolism* / Q000382:microbiology; D015964:Gene Expression Regulation, Bacterial; D054884:Host-Pathogen Interactions; D006801:Humans; D014774:Virulence
chemical_list: D001426:Bacterial Proteins