1. A cell-contact-regulated operon is involved in genetic variability in Neisseria meningitidis
- Author
-
Xavier Nassif, Eric Frapy, Dominique Schneider, Anne Jamet, Patricia Martin, Centre Régional de Pharmacovigilance (CRPV), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO), Pathogénie des infections systémiques (UMR_S 570), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Adaptation et pathogénie des micro-organismes [Grenoble] (LAPM), Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Universite Paris Descartes, INSERM, Region Ile-De-France, Foundation pour la Recherche Medicale, Centre Régional de Pharmacovigilance ( CRPV ), Assistance publique - Hôpitaux de Paris (AP-HP)-Hôpital Européen Georges Pompidou [APHP] ( HEGP ), Pathogénie des infections systémiques ( UMR_S 570 ), Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Adaptation et pathogénie des micro-organismes [Grenoble] ( LAPM ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Centre National de la Recherche Scientifique ( CNRS ), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Hôpital Européen Georges Pompidou [APHP] (HEGP), Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO), and Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
MESH : Operon ,Operon ,TOPOISOMERASES ,Cell ,Neisseria meningitidis ,medicine.disease_cause ,Bacterial Adhesion ,MESH : Host-Pathogen Interactions ,Genetics ,0303 health sciences ,Mutation ,MESH: Gene Expression Regulation, Bacterial ,SEROGROUP-A ,[SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] ,General Medicine ,GENOME ,[ SDV.BID.EVO ] Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] ,medicine.anatomical_structure ,Interaction with host ,Meningococcus ,ESCHERICHIA-COLI ,Host-Pathogen Interactions ,MESH : Gene Expression Regulation, Bacterial ,MESH: Operon ,PHASE VARIATION ,OUTER-MEMBRANE PROTEIN ,MESH : Bacterial Adhesion ,Biology ,Microbiology ,MESH: Neisseria meningitidis ,03 medical and health sciences ,MESH: Gene Expression Profiling ,Downregulation and upregulation ,medicine ,HIGH MUTATION-RATES ,Humans ,Genetic variability ,MESH: Bacterial Adhesion ,Molecular Biology ,Gene ,030304 developmental biology ,MESH: Humans ,MESH : Neisseria meningitidis ,030306 microbiology ,Gene Expression Profiling ,MESH : Gene Expression Profiling ,MESH : Humans ,MESH: Host-Pathogen Interactions ,Gene Expression Regulation, Bacterial ,EVOLUTION ,bacteria ,HOST-CELLS ,SYSTEM - Abstract
International audience; The ability of Neisseria meningitidis to establish efficient interaction with host cells is crucial for its survival. We recently demonstrated that an entire operon containing genes NMA1802 to NMA1806 was overexpressed during the early stage of the colonization process. In this work, we investigated whether upregulation of the expression of this operon facilitated the ability of N. meningitidis to adapt to growth on host cells. Using a strain displaying an inducible operon, we demonstrated that the NMA1802-NMA1806 cell-contact-regulated operon could potentially improve the adaptability of meningococcus during growth on the cell surface through enhanced generation of variants.
- Published
- 2012
- Full Text
- View/download PDF