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Nowrouzian FL, Stadler LS, Östblom A, Lindberg E, Lina G, Adlerberth I, Wold AE. Staphylococcus aureus sequence type (ST) 45, ST30, and ST15 in the gut microbiota of healthy infants - persistence and population counts in relation to ST and virulence gene carriage. Eur J Clin Microbiol Infect Dis 2023; 42:267-276. [PMID: 36689019 PMCID: PMC9899187 DOI: 10.1007/s10096-022-04539-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 12/14/2022] [Indexed: 01/24/2023]
Abstract
Staphylococcus aureus colonizes the anterior nares, and also the gut, particularly in infants. S. aureus is divided into lineages, termed clonal complexes (CCs), which comprise closely related sequence types (STs). While CC30 and CC45 predominate among nasal commensals, their prevalence among gut-colonizing S. aureus is unknown. Here, 67 gut commensal S. aureus strains from 49 healthy Swedish infants (aged 3 days to 12 months) were subjected to multi-locus sequence typing. The STs of these strains were related to their virulence gene profiles, time of persistence in the microbiota, and fecal population counts. Three STs predominated: ST45 (22% of the strains); ST15 (21%); and ST30 (18%). In a logistic regression, ST45 strains showed higher fecal population counts than the others, independent of virulence gene carriage. The lower fecal counts of ST15 were linked to the carriage of fib genes (encoding fibrinogen-binding proteins), while those of ST30 were linked to fib and sea (enterotoxin A) carriage. While only 11% of the ST15 and ST30 strains were acquired after 2 months of age, this was true of 53% of the ST45 strains (p = 0.008), indicating that the former may be less fit for establishment in a more mature microbiota. None of the ST45 strains was transient (persisting < 3 weeks), and persistent ST45 strains colonized for significantly longer periods than persistent strains of other STs (mean, 34 vs 22 weeks, p = 0.04). Our results suggest that ST45 strains are well-adapted for commensal gut colonization in infants, reflecting yet-unidentified traits of these strains.
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Affiliation(s)
- Forough L Nowrouzian
- Department of Infectious Diseases, Institute of Biomedicine, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden.
| | - Liselott Svensson Stadler
- Culture Collection University of Gothenburg, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Clinical Microbiology, Dahlgren's University Hospital, Region Västra Götaland, Gothenburg, Sweden
| | - Anna Östblom
- Department of Infectious Diseases, Institute of Biomedicine, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden
| | - Erika Lindberg
- Department of Infectious Diseases, Institute of Biomedicine, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden
| | - Gerard Lina
- Centre National de Référence Des Staphylocoques, Hospices Civils de Lyon, CIRI, Université Lyon1, INSERM U1111, CNRS-UMR 5308, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Ingegerd Adlerberth
- Department of Infectious Diseases, Institute of Biomedicine, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden
| | - Agnes E Wold
- Department of Infectious Diseases, Institute of Biomedicine, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden
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2
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Gatermann S, Das S, Dubreuil L, Giske CG, Kahlmeter G, Lina G, Lindemann C, MacGowan A, Meletiadis J, Rossolini GM, Turnidge J, Cantón R. Expected phenotypes and expert rules are important complements to antimicrobial susceptibility testing. Clin Microbiol Infect 2022; 28:764-767. [PMID: 35306191 DOI: 10.1016/j.cmi.2022.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 03/04/2022] [Accepted: 03/06/2022] [Indexed: 11/03/2022]
Affiliation(s)
- Sören Gatermann
- Abteilung für Medizinische Mikrobiologie, Ruhr-Universität Bochum, Bochum, Germany.
| | - Shampa Das
- Centre for Antimicrobial Pharmacodynamics, University of Liverpool, Liverpool, United Kingdom
| | | | - Christian G Giske
- Department of Clinical Microbiology L2:02, Karolinska University Hospital, Solna, and Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
| | | | - Gerard Lina
- Institut des Agents Infectieux, Hôpital de la Croix-Rousse, Hospices Civils de Lyon and Equipe Pathogénie des Staphylocoques, Centre International de Recherche en Infectiologie, INSERM U1111, CNRS, UMR 5308, ENS de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | | | - Alasdair MacGowan
- Department of Medical Microbiology, Southmead Hospital, Westbury on Trym, Bristol, United Kingdom
| | - Joseph Meletiadis
- Clinical Microbiology Laboratory, Attikon University General Hospital, Haidari, Athens, Greece
| | - Gian Maria Rossolini
- Department of Experimental and Clinical Medicine, University of Florence and Clinical Microbiology and Virology Unit, Florence Careggi University Hospital, Florence, Italy
| | - John Turnidge
- Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Rafael Cantón
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investiagación Sanitaria (IRYCIS), Madrid, Spain
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3
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Leibovici L, Rodríguez-Baño J, Chemaly RF, Cutler S, Huttner A, Kalil AC, Leeflang M, Lina G, Paul M, Scudeller L, Tassios PT, Yusuf E. Prediction models in CMI. Clin Microbiol Infect 2021; 28:311-312. [PMID: 34902543 DOI: 10.1016/j.cmi.2021.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 12/05/2021] [Indexed: 11/24/2022]
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Knopick P, Terman D, Riha N, Alvine T, Larson R, Badiou C, Lina G, Ballantyne J, Bradley D. Endogenous HLA-DQ8αβ programs superantigens (SEG/SEI) to silence toxicity and unleash a tumoricidal network with long-term melanoma survival. J Immunother Cancer 2021; 8:jitc-2020-001493. [PMID: 33109631 PMCID: PMC7592263 DOI: 10.1136/jitc-2020-001493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2020] [Indexed: 12/17/2022] Open
Abstract
Background As the most powerful T cell agonists known, superantigens (SAgs) have enormous potential for cancer immunotherapy. Their development has languished due to high incidence (60%–80%) of seroreactive neutralizing antibodies in humans and tumor necrosis factor-α (TNFα)-mediated cardiopulmonary toxicity. Such toxicity has narrowed their therapeutic index while neutralizing antibodies have nullified their therapeutic effects. Methods Female HLA-DQ8 (DQA*0301/DQB*0302) tg mice expressing the human major histocompatibility complex II (MHCII) HLA-DQ8 allele on a high proportion of PBL, spleen and lymph node cells were used. In the established tumor model, staphylococcal enterotoxin G and staphylococcal enterotoxin I (SEG/ SEI) (50 µg each) were injected on days 6 and 9 following tumor inoculation. Lymphoid, myeloid cells and tumor cell digests from tumor tissue were assayed using flow cytometry or quantitated using a cytometric bead array. Tumor density, necrotic and viable areas were quantitated using the ImageJ software. Results In a discovery-driven effort to address these problems we introduce a heretofore unrecognized binary complex comprizing SEG/SEI SAgs linked to the endogenous human MHCII HLA-DQ8 allele in humanized mice. By contrast to staphylococcal enterotoxin A (SEA) and staphylococcal enterotoxin B (SEB) deployed previously in clinical trials, SEG and SEI does not exhibit neutralizing antibodies in humans or TNFα-mediated toxicity in humanized HLA-DQ8 mice. In the latter model wherein SAg behavior is known to be ‘human-like’, SEG/SEI induced a powerful tumoricidal response and long-term survival against established melanoma in 82% of mice. Other SAgs deployed in the same model displayed toxic shock. Initially, HLA-DQ8 mediated melanoma antigen priming, after which SEG/SEI unleashed a broad CD4+ and CD8+ antitumor network marked by expansion of melanoma reactive T cells and interferon-γ (IFNy) in the tumor microenvironment (TME). SEG/SEI further initiated chemotactic recruitment of tumor reactive T cells to the TME converting the tumor from ‘cold’ to a ‘hot’. Long-term survivors displayed remarkable resistance to parental tumor rechallenge along with the appearance of tumor specific memory and tumor reactive T memory cells. Conclusions Collectively, these findings show for the first time that the SEG/SEI-(HLA-DQ8) empowers priming, expansion and recruitment of a population of tumor reactive T cells culminating in tumor specific memory and long-term survival devoid of toxicity. These properties distinguish SEG/SEI from other SAgs used previously in human tumor immunotherapy. Consolidation of these principles within the SEG/SEI-(HLA-DQ8) complex constitutes a conceptually new therapeutic weapon with compelling translational potential.
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Affiliation(s)
- Peter Knopick
- Biomedical Sciences, Universtiy of North Dakota School of Medicine, Grand Forks, North Dakota, USA
| | - David Terman
- Biomedical Sciences, Universtiy of North Dakota School of Medicine, Grand Forks, North Dakota, USA
| | - Nathan Riha
- Biomedical Sciences, Universtiy of North Dakota School of Medicine, Grand Forks, North Dakota, USA
| | - Travis Alvine
- Biomedical Sciences, Universtiy of North Dakota School of Medicine, Grand Forks, North Dakota, USA
| | - Riley Larson
- Biomedical Sciences, Universtiy of North Dakota School of Medicine, Grand Forks, North Dakota, USA
| | - Cedric Badiou
- University of Lyon, Lyon, Auvergne-Rhône-Alpes, France
| | - Gerard Lina
- University of Lyon 1 University Institute of Tecnology Lyon 1, Villeurbanne, Auvergne-Rhône-Alpes, France
| | | | - David Bradley
- Biomedical Sciences, Universtiy of North Dakota School of Medicine, Grand Forks, North Dakota, USA
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Naas T, Lina G, Henriksen AS, Longshaw C, Jehl F. Erratum to: In vitro activity of cefiderocol and comparators against isolates of Gram-negative pathogens from a range of infection sources: SIDERO-WT-2014-2018 studies in France. JAC Antimicrob Resist 2021; 3:dlab102. [PMID: 34316678 PMCID: PMC8306051 DOI: 10.1093/jacamr/dlab102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
[This corrects the article DOI: 10.1093/jacamr/dlab081.].
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Naas T, Lina G, Santerre Henriksen A, Longshaw C, Jehl F. In vitro activity of cefiderocol and comparators against isolates of Gram-negative pathogens from a range of infection sources: SIDERO-WT-2014-2018 studies in France. JAC Antimicrob Resist 2021; 3:dlab081. [PMID: 34223140 PMCID: PMC8251251 DOI: 10.1093/jacamr/dlab081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 05/14/2021] [Indexed: 11/12/2022] Open
Abstract
Objectives Over recent years, France has experienced an increase of infections caused by carbapenem-resistant Gram-negative (GN) pathogens. Cefiderocol is approved in Europe for the treatment of aerobic GN infections in adults with limited treatment options. This study evaluated the in vitro activity of cefiderocol and comparators against GN clinical isolates from France. Methods MICs were determined by broth microdilution, according to International Organization for Standardization guidelines. Cefiderocol was tested using iron-depleted CAMHB. Susceptibility rates were based on EUCAST breakpoints. In the absence of a species-specific breakpoint, pharmacokinetic/pharmacodynamic breakpoints were used. Results Of 2027 isolates, 1344 (66.3%) were Enterobacterales and 683 (33.7%) were non-fermenters. The most common pathogen was Pseudomonas aeruginosa (16.8%), followed by Escherichia coli (16.0%), Klebsiella pneumoniae (13.1%), Acinetobacter baumannii (7.9%) and Stenotrophomonas maltophilia (5.1%). Isolates represented a range of infection sources including nosocomial pneumonia (33.6%), complicated urinary tract infection (24.3%), bloodstream infection (13.1%) and complicated intra-abdominal infection (18.0%). In total, 135/2027 (6.7%) isolates were meropenem resistant (MIC >8 mg/L); 133/135 (98.5%) were non-fermenters. Overall, 1330/1344 (99.0%) Enterobacterales and 681/683 (99.7%) non-fermenters were cefiderocol susceptible, including 100% of meropenem-resistant S. maltophilia (n = 98) and P. aeruginosa (n = 18) isolates. Susceptibility to cefiderocol was significantly higher (P < 0.01) in nosocomial pneumonia isolates (681/682 [99.9%]) than susceptibility to meropenem (586/682 [85.9%]), ceftolozane/tazobactam (593/682 [87.0%]), ceftazidime/avibactam (612/682 [89.7%]) and colistin (538/682 [78.9%]). Conclusions Cefiderocol demonstrated high in vitro susceptibility rates against a wide range of Gram-negative pathogens, including meropenem-resistant strains, and was significantly more active than comparators against pneumonia isolates.
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Affiliation(s)
- Thierry Naas
- Team ReSIST, INSERM U1184, School of Medicine Université Paris-Saclay, LabEx LERMIT, Le Kremlin-Bicêtre, France.,Bacteriology-Hygiene unit, Assistance Publique/Hôpitaux de Paris, Bicêtre Hospital, Le Kremlin-Bicêtre, France.,French National Reference Center for Antibiotic Resistance: Carbapenemase-producing Enterobacteriaceae, Le Kremlin-Bicêtre, France
| | - Gerard Lina
- CIRI Centre International de Recherche en Infectiologie, Inserm U1111, Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS UMR, 5308, Lyon, France.,Institut des Agent infectieux, Hôpital de la Croix Rousse, Hospices Civils de Lyon, Lyon, France
| | | | | | - Francois Jehl
- Laboratory of Bacteriology, School of Medicine and University Hospital, Strasbourg, France
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7
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Portal E, Descours G, Ginevra C, Mentasti M, Afshar B, Chand M, Day J, Echahidi F, Franzin L, Gaia V, Lück C, Meghraoui A, Moran-Gilad J, Ricci ML, Lina G, Uldum S, Winchell J, Howe R, Bernard K, Spiller OB, Chalker VJ, Jarraud S. Legionella antibiotic susceptibility testing: is it time for international standardization and evidence-based guidance? J Antimicrob Chemother 2021; 76:1113-1116. [PMID: 33608737 DOI: 10.1093/jac/dkab027] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Legionella pneumophila, a Gram-negative bacillus, is the causative agent of Legionnaire's disease, a form of severe community-acquired pneumonia. Infection can have high morbidity, with a high proportion of patients requiring ICU admission, and up to 10% mortality, which is exacerbated by the lack of efficacy of typical empirical antibiotic therapy against Legionella spp. The fastidious nature of the entire Legionellaceae family historically required inclusion of activated charcoal in the solid medium to remove growth inhibitors, which inherently interferes with accurate antimicrobial susceptibility determination, an acknowledged methodological shortfall, now rectified by a new solid medium that gives results comparable to those of microbroth dilution. Here, as an international Legionella community (with authors representing various international reference laboratories, countries and clinical stakeholders for diagnosis and treatment of legionellosis), we set out recommendations for the standardization of antimicrobial susceptibility testing methods, guidelines and reference strains to facilitate an improved era of antibiotic resistance determination.
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Affiliation(s)
- Edward Portal
- Medical Microbiology, Department of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK.,Bacteriology Reference Department, Public Health England, London, UK
| | - Ghislaine Descours
- Centre National de Reference des Legionelles, Hospices Civils de Lyon, University de Lyon, Lyon, France
| | - Christophe Ginevra
- Centre National de Reference des Legionelles, Hospices Civils de Lyon, University de Lyon, Lyon, France
| | | | - Baharak Afshar
- Bacteriology Reference Department, Public Health England, London, UK
| | - Meera Chand
- Bacteriology Reference Department, Public Health England, London, UK
| | - Jessica Day
- Bacteriology Reference Department, Public Health England, London, UK
| | - Fedoua Echahidi
- Department of Microbiology and Infection Control, National Reference Centre for Legionella pneumophila, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | | | - Valeria Gaia
- Department of Laboratory Medicine, Reference Centre for Legionella, Bellinzona, Switzerland
| | - Christian Lück
- German Consiliary Laboratory for Legionella, Institute of Medical Microbiology and Hygiene, Dresden University of Technology, Dresden, Germany
| | - Alaeddine Meghraoui
- Department of Microbiology, National Reference Centre for Legionella pneumophila, Laboratoire Hospitalier Universitaire de Bruxelles-University Laboratory of Brussels (LHUB-ULB), Belgium
| | - Jacob Moran-Gilad
- Department of Health Systems Management, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
| | | | - Gerard Lina
- Centre National de Reference des Legionelles, Hospices Civils de Lyon, University de Lyon, Lyon, France
| | - Søren Uldum
- Statens Serum Institute, Copenhagen, Denmark
| | - Jonas Winchell
- National Center for Immunization and Respiratory Diseases, Centres for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Kathryn Bernard
- Special Bacteriology Unit, National Microbiology Laboratory-PHAC, Winnipeg, Canada
| | - Owen B Spiller
- Medical Microbiology, Department of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - Victoria J Chalker
- Bacteriology Reference Department, Public Health England, London, UK.,National Institute for Health Research Health Protection Research Unit (NIHR HPRU) in Respiratory Infections at Imperial College London in partnership with Public Health England (PHE), London, UK
| | - Sophie Jarraud
- Centre National de Reference des Legionelles, Hospices Civils de Lyon, University de Lyon, Lyon, France
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Hodille E, Plesa A, Bourrelly E, Belmont L, Badiou C, Lina G, Dumitrescu O. Staphylococcal Panton-Valentine Leucocidin and Gamma Haemolysin Target and Lyse Mature Bone Marrow Leucocytes. Toxins (Basel) 2020; 12:toxins12110725. [PMID: 33233557 PMCID: PMC7699679 DOI: 10.3390/toxins12110725] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 12/20/2022] Open
Abstract
Staphylococcus aureus is a major human pathogen, inducing several infections ranging from the benign to the life-threatening, such as necrotising pneumonia. S. aureus is capable of producing a great variety of virulence factors, such as bicomponent pore-forming leucocidin, which take part in the physiopathology of staphylococcal infection. In necrotising pneumonia, Panton–Valentine leucocidin (PVL) induces not only lung injury and necrosis, but also leukopenia, regarded as a major factor of a poor prognosis. The aim of the present study was to evaluate the effect of bicomponent pore-forming leucocidin, PVL and gamma haemolysin on bone marrow leucocytes, to better understand the origin of leukopenia. Using multi-parameter cytometry, the expression of leucocidin receptors (C5aR, CXCR1, CXCR2, and CCR2) was assessed and toxin-induced lysis was measured for each bone marrow leucocyte population. We observed that PVL resulted in myeloid-derived cells lysis according to their maturation and their C5aR expression; it also induced monocytes lysis according to host susceptibility. Haemolysin gamma A, B, and C (HlgABC) displayed cytotoxicity to monocytes and natural killer cells, hypothetically through CXCR2 and CXCR1 receptors, respectively. Taken together, the data suggest that PVL and HlgABC can lyse bone marrow leucocytes. Nevertheless, the origin of leukopenia in severe staphylococcal infection is predominantly peripheral, since immature cells stay insensitive to leucocidins.
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Affiliation(s)
- Elisabeth Hodille
- Department of Bacteriology, Hospices Civils de Lyon, Hôpital de la Croix-Rousse, Centre de Biologie Nord, 69004 Lyon, France; (G.L.); (O.D.)
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, ENS Lyon, Université Lyon 1, 69364 Lyon, France;
- Correspondence:
| | - Adriana Plesa
- Department of Hematology, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Centre de Biologie Sud, 69002 Lyon, France; (A.P.); (E.B.); (L.B.)
| | - Eve Bourrelly
- Department of Hematology, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Centre de Biologie Sud, 69002 Lyon, France; (A.P.); (E.B.); (L.B.)
| | - Lucie Belmont
- Department of Hematology, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Centre de Biologie Sud, 69002 Lyon, France; (A.P.); (E.B.); (L.B.)
| | - Cédric Badiou
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, ENS Lyon, Université Lyon 1, 69364 Lyon, France;
| | - Gerard Lina
- Department of Bacteriology, Hospices Civils de Lyon, Hôpital de la Croix-Rousse, Centre de Biologie Nord, 69004 Lyon, France; (G.L.); (O.D.)
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, ENS Lyon, Université Lyon 1, 69364 Lyon, France;
- National Reference Center for Staphylococci, Hospices Civils de Lyon, Hôpital de la Croix-Rousse, Centre de Biologie Nord, 69004 Lyon, France
| | - Oana Dumitrescu
- Department of Bacteriology, Hospices Civils de Lyon, Hôpital de la Croix-Rousse, Centre de Biologie Nord, 69004 Lyon, France; (G.L.); (O.D.)
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, ENS Lyon, Université Lyon 1, 69364 Lyon, France;
- National Reference Center for Staphylococci, Hospices Civils de Lyon, Hôpital de la Croix-Rousse, Centre de Biologie Nord, 69004 Lyon, France
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9
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Carlet J, Jarlier V, Acar J, Debaere O, Dehaumont P, Grandbastien B, Le Coz P, Lina G, Pean Y, Rambaud C, Roblot F, Salomon J, Schlemmer B, Tattevin P, Vallet B. Trends in Antibiotic Consumption and Resistance in France Over 20 Years: Large and Continuous Efforts but Contrasting Results. Open Forum Infect Dis 2020; 7:ofaa452. [PMID: 33204753 PMCID: PMC7651446 DOI: 10.1093/ofid/ofaa452] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 10/28/2020] [Indexed: 01/21/2023] Open
Abstract
Background Antimicrobial resistance (AMR) is a serious threat to humanity. This paper describes the French efforts made since 2001 and presents data on antimicrobial consumption (AC) and AMR. Methods We gathered all data on AC and AMR recorded since 2001 from different national agencies, transferred on a regular basis to standardized European data on AC and resistance in both humans and animals. Results After a large information campaign implemented in France from 2001 to 2005 in humans, AC in the community decreased significantly (18% to 34% according to the calculation method used). It remained at the same level from 2005 to 2010 and increased again from 2010 to 2018 (8%). Contrasting results were observed for AMR. The resistance of Staphylococcus aureus decreased significantly. For gram-negative bacilli, the results were variable according to the microorganism. The resistance of Enterobacteriaceae to third-generation cephalosporins increased, remaining moderate for Escherichia coli (12% in 2017) but reaching 35% in the same year for Klebsiella pneumoniae. Resistance to carbapenems in those 2 microorganisms remained below 1%. Both global AC and resistance to most antibiotics decreased significantly in animals. Conclusions Antibiotic consumption decreased significantly in France after a large public campaign from 2001 to 2005, but this positive effect was temporary. The effect on AMR varied according to the specific microorganism: The effect was very impressive for gram-positive cocci, variable for gram-negative bacilli, and moderate for E. coli, but that for K. pneumoniae was of concern. The consumption of and resistance to antibiotics decreased significantly in animals.
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Affiliation(s)
- Jean Carlet
- World Alliance Against Antibiotic Resistance (WAAAR), Paris, France
| | - Vincent Jarlier
- Laboratory of Bacteriology and Hygiene, Assistance Publique-Hopitaux de Paris, Pitie-Salpetriere Hospital, Paris, France
| | - Jacques Acar
- Pierre and Marie Curie University, Paris, France.,World Organization for Animal Health, Paris France.,AGISAR working group, World Health Organization, Geneva, Switzerland
| | | | | | - Bruno Grandbastien
- French Society of Hospital Hygiene (SF2H), Hospital Prevention Unit, University Hospital, Lausanne, Switzerland
| | | | - Gerard Lina
- Infectious Agents Institute, Croix Rousse Hospital and International Centre for Research in Infectious Diseases, INSERM, Lyon University, Lyon, France
| | - Yves Pean
- National Observatory of the Epidemiology of the Bacterial Resistance to Antibiotics (ONERBA), Paris, France
| | | | - France Roblot
- French Society of Infectious Diseases (SPILF), University of Poitiers, Poitiers, France.,National Institute for Health and Medical Research, Poitiers, France
| | | | - Benoit Schlemmer
- French National Plans against Antibacterial Resistance, Paris-Diderot University, Sorbonne Paris-Cité, Paris, France
| | - Pierre Tattevin
- French Society of Infectious Diseases, Rennes University, Rennes, France
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10
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Shapiro JT, Leboucher G, Myard-Dury AF, Girardo P, Luzzati A, Mary M, Sauzon JF, Lafay B, Dauwalder O, Laurent F, Lina G, Chidiac C, Couray-Targe S, Vandenesch F, Flandrois JP, Rasigade JP. Metapopulation ecology links antibiotic resistance, consumption, and patient transfers in a network of hospital wards. eLife 2020; 9:54795. [PMID: 33106223 PMCID: PMC7690951 DOI: 10.7554/elife.54795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 10/12/2020] [Indexed: 02/07/2023] Open
Abstract
Antimicrobial resistance (AMR) is a global threat. A better understanding of how antibiotic use and between-ward patient transfers (or connectivity) impact population-level AMR in hospital networks can help optimize antibiotic stewardship and infection control strategies. Here, we used a metapopulation framework to explain variations in the incidence of infections caused by seven major bacterial species and their drug-resistant variants in a network of 357 hospital wards. We found that ward-level antibiotic consumption volume had a stronger influence on the incidence of the more resistant pathogens, while connectivity had the most influence on hospital-endemic species and carbapenem-resistant pathogens. Piperacillin-tazobactam consumption was the strongest predictor of the cumulative incidence of infections resistant to empirical sepsis therapy. Our data provide evidence that both antibiotic use and connectivity measurably influence hospital AMR. Finally, we provide a ranking of key antibiotics by their estimated population-level impact on AMR that might help inform antimicrobial stewardship strategies.
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Affiliation(s)
- Julie Teresa Shapiro
- CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS, UMR5308, Lyon, France
| | | | - Anne-Florence Myard-Dury
- Pôle de Santé Publique, Département d'Information Médicale, Hospices Civils de Lyon, Lyon, France
| | - Pascale Girardo
- Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France
| | - Anatole Luzzati
- Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France
| | - Mélissa Mary
- Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France
| | | | - Bénédicte Lafay
- Laboratoire de Biométrie et Biologie Evolutive, UMR CNRS 5558, University of Lyon, Lyon, France
| | - Olivier Dauwalder
- Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France
| | - Frédéric Laurent
- CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS, UMR5308, Lyon, France.,Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France
| | - Gerard Lina
- CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS, UMR5308, Lyon, France.,Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France
| | - Christian Chidiac
- Service des Maladies Infectieuses et Tropicales, Hospices Civils de Lyon, Lyon, France
| | - Sandrine Couray-Targe
- Pôle de Santé Publique, Département d'Information Médicale, Hospices Civils de Lyon, Lyon, France
| | - François Vandenesch
- CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS, UMR5308, Lyon, France.,Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France
| | - Jean-Pierre Flandrois
- Laboratoire de Biométrie et Biologie Evolutive, UMR CNRS 5558, University of Lyon, Lyon, France
| | - Jean-Philippe Rasigade
- CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS, UMR5308, Lyon, France.,Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France
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11
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Schön T, Werngren J, Machado D, Borroni E, Wijkander M, Lina G, Mouton J, Matuschek E, Kahlmeter G, Giske C, Santin M, Cirillo DM, Viveiros M, Cambau E. Multicentre testing of the EUCAST broth microdilution reference method for MIC determination on Mycobacterium tuberculosis. Clin Microbiol Infect 2020; 27:288.e1-288.e4. [PMID: 33198949 DOI: 10.1016/j.cmi.2020.10.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 10/14/2020] [Accepted: 10/19/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The first objective of the European Committee on Antimicrobial Susceptibility Testing (EUCAST) subcommittee for antimycobacterial susceptibility testing (AMST), launched in 2016, was to set a reference method for determining the MICs of antituberculous agents, since many protocols are used worldwide and a consensus one is needed for the determination of microbiological breakpoints. METHODS During 2017 and 2018, MIC determination protocols were evaluated prospectively in a multicentre study within the four AMST laboratories. MIC results were obtained for isoniazid, levofloxacin and amikacin on the reference strain Mycobacterium tuberculosis H37Rv ATCC 27294. Broth microdilution (BMD) in Middlebrook 7H9 and solid medium dilution (SMD) in Middlebrook 7H10 were performed using two inoculum concentrations. MICs were interpreted with regard to visual and 99% inhibition after 7, 14 or 21 days of incubation for BMD and 21 days for SMD. RESULTS Following the EUCAST reference protocol, intra- and inter-assay agreements were within ±1 MIC dilution for >95% of the observations for the three drugs in both methods. MIC values, presented as MIC mode (range) for BMD and SMD respectively, were: 0.03 (0.015-0.06) mg/L and 0.12 (0.06-0.25) mg/L for isoniazid, 0.25 mg/L (0.25-0.5) and 0.5 mg/L (0.12-0.5) for levofloxacin, and 0.5 mg/L (0.5-1.0) and 0.5 mg/L (0.5-1.0) for amikacin. CONCLUSIONS Both SMD and BMD were reproducible and eligible as a reference method for MIC determination of the Mycobacterium tuberculosis complex (MTBC). BMD was finally selected as the EUCAST reference method. From now on it will be used to set epidemiological cut-off values and clinical breakpoints of new and old antituberculous agents.
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Affiliation(s)
- Thomas Schön
- Department of Clinical Microbiology and Infectious Diseases, Kalmar County Hospital, Linköping University, Sweden
| | - Jim Werngren
- Public Health Agency of Sweden, Department of Microbiology, Unit of Laboratory Surveillance of Bacterial Pathogens, 171 82 Solna, Sweden
| | - Diana Machado
- Unit of Medical Microbiology of the Instituto de Higiene e Medicina Tropical and Global Health and Tropical Medicine from Universidade NOVA de Lisboa, P-1349-008 Lisboa, Portugal
| | - Emanuele Borroni
- Emerging Bacterial Pathogen, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Maria Wijkander
- Public Health Agency of Sweden, Department of Microbiology, Unit of Laboratory Surveillance of Bacterial Pathogens, 171 82 Solna, Sweden
| | - Gerard Lina
- CIRI, Centre International de Recherche en Infectiologie, Université Lyon 1, Ecole Normale Supérieure de Lyon, and Centre National de Référence des Staphylocoques, Institut des Agent Infectieux, Hôpital de la Croix Rousse, Hospices Civils de Lyon, Lyon, France
| | - Johan Mouton
- Department of Medical Microbiology and Infectious Diseases, Research and Development Unit, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Erika Matuschek
- Department of Clinical Microbiology, Central Hospital, and EUCAST Development Laboratory, Växjö, Sweden
| | - Gunnar Kahlmeter
- Department of Clinical Microbiology, Central Hospital, and EUCAST Development Laboratory, Växjö, Sweden
| | - Christian Giske
- Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Miguel Santin
- Department of Infectious Diseases, Bellvitge University Hospital-IDIBELL, University of Barcelona, 08907 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Daniela Maria Cirillo
- Emerging Bacterial Pathogen, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Miguel Viveiros
- Unit of Medical Microbiology of the Instituto de Higiene e Medicina Tropical and Global Health and Tropical Medicine from Universidade NOVA de Lisboa, P-1349-008 Lisboa, Portugal
| | - Emmanuelle Cambau
- APHP-GHU Nord, Mycobactériologie Spécialisée et de Référence, Laboratoire Associé du Centre National de Référence des Mycobactéries et de la Résistance des Mycobactéries aux Antituberculeux (CNR-MyRMA), and Université de Paris, INSERM, IAME UMR1137, F-75006 Paris, France.
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12
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Schön T, Köser CU, Werngren J, Viveiros M, Georghiou S, Kahlmeter G, Giske C, Maurer F, Lina G, Turnidge J, van Ingen J, Jankovic M, Goletti D, Cirillo DM, Santin M, Cambau E. What is the role of the EUCAST reference method for MIC testing of the Mycobacterium tuberculosis complex? Clin Microbiol Infect 2020; 26:1453-1455. [PMID: 32768492 DOI: 10.1016/j.cmi.2020.07.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/29/2020] [Accepted: 07/01/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Thomas Schön
- Department of Clinical Microbiology and Infectious Diseases, Kalmar County Hospital, Linköping University, Linköping, Sweden
| | | | - Jim Werngren
- Public Health Agency of Sweden, Department of Microbiology, Unit of Laboratory Surveillance of Bacterial Pathogens, Solna, Sweden
| | - Miguel Viveiros
- Unit of Medical Microbiology of the Instituto de Higiene e Medicina Tropical and Global Health and Tropical Medicine from Universidade NOVA de Lisboa, Lisbon, Portugal
| | | | - Gunnar Kahlmeter
- EUCAST Development Laboratory, Växjö, Sweden; Department of Clinical Microbiology, Central Hospital, Växjö, Sweden
| | - Christian Giske
- EUCAST Development Laboratory, Växjö, Sweden; Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Florian Maurer
- National Reference Center for Mycobacteria, Research Center Borstel, Borstel, Germany
| | - Gerard Lina
- EUCAST Development Laboratory, Växjö, Sweden; CIRI, Centre International de Recherche en Infectiologie, Université Lyon 1, Ecole Normale Supérieure de Lyon, France; Centre National de Référence des Staphylocoques, Institut des Agent infectieux, Hôpital de la Croix Rousse, Hospices Civils de Lyon, Lyon, France
| | - John Turnidge
- EUCAST Development Laboratory, Växjö, Sweden; Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Jakko van Ingen
- Department of Medical Microbiology, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Mateja Jankovic
- University of Zagreb, School of Medicine University Hospital Centre Zagreb, Clinic for Respiratory Diseases, Zagreb, Croatia
| | - Delia Goletti
- Translational Research Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Department of Epidemiology and Preclinical Research, Rome, Italy
| | | | - Miguel Santin
- Department of Infectious Diseases, Bellvitge University Hospital-IDIBELL, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Emmanuelle Cambau
- APHP-GHU Nord site Bichat, Service de Mycobactériologie Spécialisée et de Référence, Laboratoire Associé du Centre National de Référence des Mycobactéries et de la Résistance des Mycobactéries aux Antituberculeux (CNR-MyRMA), Paris, France; Université de Paris, INSERM, IAME UMR1137, Paris, France.
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13
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Billon A, Gustin MP, Tristan A, Bénet T, Berthiller J, Gustave CA, Vanhems P, Lina G. Association of characteristics of tampon use with menstrual toxic shock syndrome in France. EClinicalMedicine 2020; 21:100308. [PMID: 32382713 PMCID: PMC7201028 DOI: 10.1016/j.eclinm.2020.100308] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Menstrual tampons are widely used in western countries. Indirect evidence suggests that tampon misuse could be associated with an increased risk of menstrual toxic shock syndrome (MTSS). The aim of this study was to determine what characteristics of tampon use are associated with increased risk of menstrual toxic shock syndrome (MTSS). METHODS A nationwide, case-control study in France, was conducted with women that use tampons with MTSS diagnoses according to the CDC diagnostic criteria (n = 55, from January 2011, to December 2017) and a control group of women with no MTSS history (n = 126, from February to December 2017). Information regarding tampon use during a 6-month period was collected. Associations between tampon use and MTSS were assessed using logistic regression models stratified by residential area. FINDINGS Compared to controls, women diagnosed with MTSS more frequently reported maximum tampon wear of >6 h (62% vs. 41%; P = 0.02), overnight tampon use (77% vs. 54%; P = 0.006), and neither read nor followed tampon instructions in case of reading (65% vs. 42%; P = 0.006). In univariate analysis, MTSS risk was two-fold higher with tampon use for >6 consecutive hours (odds ratio, 2.3 [95% CI, 1.2-4.5]), and three-fold higher with tampon use during sleep for >8 h (odds ratio, 3.2 [95% CI, 1.4-7.7]). In multivariate logistic regression analysis, only maximum tampon use for >6 h (odds ratio, 2.03 [95% CI, 1.04-3.98]), and neither read nor followed the tampon instructions in case of reading (odds ratio, 2.25 [95% CI, 1.15-4.39]) were independently associated with MTSS. INTERPRETATION Our study suggests that the risk of MTSS was associated with using tampons for more than 6 h, overnight tampon use during sleep, and neither read nor followed tampon insertion instructions in case of reading. FUNDING LABEX ECOFECT (ANR-11-LABX-0048) of Université de Lyon within the programme "Investissements d'Avenir" (ANR-11-IDEX-0007) operated by the French National Research Agency (ANR).
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Affiliation(s)
- Amaury Billon
- Centre National de Référence de Staphylocoques - Institut des Agents Infectieux, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - Marie-Paule Gustin
- Equipe Epidémiologie et Santé Internationale, Centre International de Recherche en Infectiologie, INSERM U1111, CNRS, UMR 5308, ENS de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Anne Tristan
- Centre National de Référence de Staphylocoques - Institut des Agents Infectieux, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Equipe Pathogénie des Staphylocoques, Centre International de Recherche en Infectiologie, INSERM U1111, CNRS, UMR 5308, ENS de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Thomas Bénet
- Service d'Hygiène, Épidémiologie, Infectiovigilance et Prévention, Groupement Hospitalier Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Julien Berthiller
- Unité d'Appui Méthodologique - EPICIME - Cellule Innovation DRCi, Groupement Hospitalier Est, Hospices Civils de Lyon, Lyon, France
| | - Claude Alexandre Gustave
- Centre National de Référence de Staphylocoques - Institut des Agents Infectieux, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Equipe Pathogénie des Staphylocoques, Centre International de Recherche en Infectiologie, INSERM U1111, CNRS, UMR 5308, ENS de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Philippe Vanhems
- Equipe Epidémiologie et Santé Internationale, Centre International de Recherche en Infectiologie, INSERM U1111, CNRS, UMR 5308, ENS de Lyon, Université Claude Bernard Lyon 1, Lyon, France
- Service d'Hygiène, Épidémiologie, Infectiovigilance et Prévention, Groupement Hospitalier Edouard Herriot, Hospices Civils de Lyon, Lyon, France
- Unité d'Appui Méthodologique - EPICIME - Cellule Innovation DRCi, Groupement Hospitalier Est, Hospices Civils de Lyon, Lyon, France
| | - Gerard Lina
- Centre National de Référence de Staphylocoques - Institut des Agents Infectieux, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Equipe Pathogénie des Staphylocoques, Centre International de Recherche en Infectiologie, INSERM U1111, CNRS, UMR 5308, ENS de Lyon, Université Claude Bernard Lyon 1, Lyon, France
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14
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Kluytmans J, Voss A, Kahlmeter G, Giske C, MacGowan A, Brown D, Gatermann S, Lina G, Lindemann C, Turnidge J, Canton R, Petinaki E, Vaz CP, Rodriguez Baño J. Obituary: Johan Willem Mouton. Clin Microbiol Infect 2020. [DOI: 10.1016/j.cmi.2019.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Gocko X, Lenormand C, Lemogne C, Bouiller K, Gehanno JF, Rabaud C, Perrot S, Eldin C, de Broucker T, Roblot F, Toubiana J, Sellal F, Vuillemet F, Sordet C, Fantin B, Lina G, Sobas C, Jaulhac B, Figoni J, Chirouze C, Hansmann Y, Hentgen V, Caumes E, Dieudonné M, Picone O, Bodaghi B, Gangneux JP, Degeilh B, Partouche H, Saunier A, Sotto A, Raffetin A, Monsuez JJ, Michel C, Boulanger N, Cathebras P, Tattevin P. Erratum à « Borréliose de Lyme et autres maladies vectorielles à tiques. Recommandations des sociétés savantes françaises » [Med. Mal. Infect. 49 (2019) 296–317]. Med Mal Infect 2019; 49:558-559. [DOI: 10.1016/j.medmal.2019.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Lina G. New insights into coagulase-negative staphylococci. Clin Microbiol Infect 2019; 25:1063. [PMID: 31212074 DOI: 10.1016/j.cmi.2019.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 06/03/2019] [Accepted: 06/05/2019] [Indexed: 10/26/2022]
Affiliation(s)
- G Lina
- CIRI, Centre International de Recherche en Infectiologie, Université Lyon 1, Ecole Normale Supérieure de Lyon, France; Centre National de Référence des Staphylocoques, Institut des Agent infectieux, Hôpital de la Croix Rousse, Hospices Civils de Lyon, Lyon, France.
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17
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Gocko X, Lenormand C, Lemogne C, Bouiller K, Gehanno JF, Rabaud C, Perrot S, Eldin C, de Broucker T, Roblot F, Toubiana J, Sellal F, Vuillemet F, Sordet C, Fantin B, Lina G, Sobas C, Jaulhac B, Figoni J, Chirouze C, Hansmann Y, Hentgen V, Caumes E, Dieudonné M, Picone O, Bodaghi B, Gangneux JP, Degeilh B, Partouche H, Saunier A, Sotto A, Raffetin A, Monsuez JJ, Michel C, Boulanger N, Cathebras P, Tattevin P. Lyme borreliosis and other tick-borne diseases. Guidelines from the French scientific societies. Med Mal Infect 2019; 49:296-317. [PMID: 31257066 DOI: 10.1016/j.medmal.2019.05.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 05/31/2019] [Indexed: 12/19/2022]
Affiliation(s)
- X Gocko
- Département de médecine générale, faculté de médecine, 42000 Saint-Étienne, France
| | - C Lenormand
- Dermatologie, hôpitaux universitaires de Strasbourg et faculté de médecine, université de Strasbourg, 67000 Strasbourg, France
| | - C Lemogne
- Psychiatrie, hôpital européen Georges-Pompidou, AP-HP.5, Inserm U1266, université Paris, 75015 Descartes, Paris, France
| | - K Bouiller
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, UMR CNRS 6249 université Bourgogne Franche Comté, 25000 Besançon, France
| | - J-F Gehanno
- Médecine du travail, centre hospitalo-universitaire, 76000 Rouen, France
| | - C Rabaud
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, 54100 Nancy, France
| | - S Perrot
- Centre d'étude et de traitement de la douleur, hôpital Cochin, 75014 Paris, France
| | - C Eldin
- Maladies infectieuses et tropicales, IHU Méditerranée infection, centre hospitalo-universitaire Timone, 13000 Marseille, France
| | - T de Broucker
- Neurologie, hôpital Delafontaine, 93200 Saint-DenisFrance
| | - F Roblot
- Inserm U1070, Maladies infectieuses et tropicales, centre hospitalo-universitaire, 86000 Poitiers, France
| | - J Toubiana
- Service de pédiatrie générale et maladies infectieuses, hôpital Necker-Enfants malades, AP-HP, 75014 Paris, France
| | - F Sellal
- Département de neurologie, hôpitaux Civil, 68000 Colmar, France
| | - F Vuillemet
- Département de neurologie, hôpitaux Civil, 68000 Colmar, France
| | - C Sordet
- Rhumatologie, centre hospitalo-universitaire, 67000 Strasbourg, France
| | - B Fantin
- Médecine interne, hôpital Beaujon, université Paris Diderot, Inserm UMR 1137 IAME, 92110 Clichy, France
| | - G Lina
- Laboratoire de bactériologie et CNR des Borrelia, faculté de médecine et centre hospitalo-universitaire, 67000 Strasbourg, France
| | - C Sobas
- Microbiologie, centre hospitalo-universitaire, 69000 Lyon, France
| | - B Jaulhac
- Laboratoire de bactériologie et CNR des Borrelia, faculté de médecine et centre hospitalo-universitaire, 67000 Strasbourg, France
| | - J Figoni
- Maladies infectieuses et tropicales, hôpital Avicenne, 930222 Bobigny, France; Santé publique France, 94410 St.-Maurice, France
| | - C Chirouze
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, UMR CNRS 6249 université Bourgogne Franche Comté, 25000 Besançon, France
| | - Y Hansmann
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, 67000 Strasbourg, France
| | - V Hentgen
- Pédiatrie, centre hospitalier, 78000 Versailles, France
| | - E Caumes
- Maladies infectieuses et tropicales, hôpital La Pitié-Salpêtrière, 75013 Paris, France
| | - M Dieudonné
- Centre Max-Weber, CNRS, université Lyon 2, 69000 Lyon, France
| | - O Picone
- Maternité Louis-Mourier, 92700 Colombes, France
| | - B Bodaghi
- Ophtalmologie, hôpital La Pitié-Salpêtrière, 75013 Paris, France
| | - J-P Gangneux
- Laboratoire de parasitologie-mycologie, UMR_S 1085 Irset, université Rennes1-Inserm-EHESP, centre hospitalo-universitaire, 35000 Rennes, France
| | - B Degeilh
- Laboratoire de parasitologie-mycologie, UMR_S 1085 Irset, université Rennes1-Inserm-EHESP, centre hospitalo-universitaire, 35000 Rennes, France
| | - H Partouche
- Cabinet de médecine générale, 93400 Saint-Ouen, département de médecine générale, faculté de médecine, université Paris Descartes, 75006 Paris, France
| | - A Saunier
- Médecine interne et maladies infectieuses, centre hospitalier, 24750 Périgueux, France
| | - A Sotto
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, 30000 Nîmes, France
| | - A Raffetin
- Maladies infectieuses et tropicales, centre hospitalier intercommunal, 94190 Villeneuve-St-Georges, France
| | - J-J Monsuez
- Cardiologie, hôpital René-Muret, 93270 Sevran, France
| | - C Michel
- Médecine générale, 67000 Strasbourg, France
| | - N Boulanger
- Laboratoire de bactériologie et CNR des Borrelia, faculté de médecine et centre hospitalo-universitaire, 67000 Strasbourg, France
| | - P Cathebras
- Médecine interne, hôpital Nord, centre hospitalo-universitaire, 42000 Saint-Étienne, France
| | - P Tattevin
- Maladies infectieuses et reanimation médicale, hôpital Pontchaillou, centre hospitalo-universitaire, 35000 Rennes, France.
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18
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Jaulhac B, Saunier A, Caumes E, Bouiller K, Gehanno JF, Rabaud C, Perrot S, Eldin C, de Broucker T, Roblot F, Toubiana J, Sellal F, Vuillemet F, Sordet C, Fantin B, Lina G, Sobas C, Gocko X, Figoni J, Chirouze C, Hansmann Y, Hentgen V, Cathebras P, Dieudonné M, Picone O, Bodaghi B, Gangneux JP, Degeilh B, Partouche H, Lenormand C, Sotto A, Raffetin A, Monsuez JJ, Michel C, Boulanger N, Lemogne C, Tattevin P. Lyme borreliosis and other tick-borne diseases. Guidelines from the French scientific societies (II). Biological diagnosis, treatment, persistent symptoms after documented or suspected Lyme borreliosis. Med Mal Infect 2019; 49:335-346. [PMID: 31155367 DOI: 10.1016/j.medmal.2019.05.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 05/07/2019] [Indexed: 11/18/2022]
Abstract
The serodiagnosis of Lyme borreliosis is based on a two-tier strategy: a screening test using an immunoenzymatic technique (ELISA), followed if positive by a confirmatory test with a western blot technique for its better specificity. Lyme serology has poor sensitivity (30-40%) for erythema migrans and should not be performed. The seroconversion occurs after approximately 6 weeks, with IgG detection (sensitivity and specificity both>90%). Serological follow-up is not recommended as therapeutic success is defined by clinical criteria only. For neuroborreliosis, it is recommended to simultaneously perform ELISA tests in samples of blood and cerebrospinal fluid to test for intrathecal synthesis of Lyme antibodies. Given the continuum between early localized and disseminated borreliosis, and the efficacy of doxycycline for the treatment of neuroborreliosis, doxycycline is preferred as the first-line regimen of erythema migrans (duration, 14 days; alternative: amoxicillin) and neuroborreliosis (duration, 14 days if early, 21 days if late; alternative: ceftriaxone). Treatment of articular manifestations of Lyme borreliosis is based on doxycycline, ceftriaxone, or amoxicillin for 28 days. Patients with persistent symptoms after appropriate treatment of Lyme borreliosis should not be prescribed repeated or prolonged antibacterial treatment. Some patients present with persistent and pleomorphic symptoms after documented or suspected Lyme borreliosis. Another condition is eventually diagnosed in 80% of them.
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Affiliation(s)
- B Jaulhac
- Laboratoire de bactériologie et cnr des Borrelia, faculté de médecine et centre hospitalo-universitaire, 67000 Strasbourg, France
| | - A Saunier
- Médecine interne et maladies infectieuses, centre hospitalier, 24750 Périgueux, France
| | - E Caumes
- Maladies infectieuses et tropicales, hôpital La Pitié-Salpêtrière, 75013 Paris, France
| | - K Bouiller
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, UMR CNRS 6249 Université Bourgogne Franche Comté, 25000 Besançon, France
| | - J F Gehanno
- Médecine du travail, centre hospitalo-universitaire, 76000 Rouen, France
| | - C Rabaud
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, 54100 Nancy, France
| | - S Perrot
- Centre d'étude et de traitement de la douleur, hôpital Cochin, 75014 Paris, France
| | - C Eldin
- Maladies infectieuses et tropicales, ihu méditerranée infection, centre hospitalo-universitaire Timone, 13000 Marseille, France
| | - T de Broucker
- Neurologie, hôpital Delafontaine, 92300 Saint-Denis, France
| | - F Roblot
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, inserm U1070, 86000 Poitiers, France
| | - J Toubiana
- Service de pédiatrie générale et maladies infectieuses, hôpital Necker-Enfants Malades, AP-HP, 75014 Paris, France
| | - F Sellal
- Département de neurologie, hôpitaux civil, 68000 Colmar, France
| | - F Vuillemet
- Département de neurologie, hôpitaux civil, 68000 Colmar, France
| | - C Sordet
- Rhumatologie, centre hospitalo-universitaire, 67000 Strasbourg, France
| | - B Fantin
- Médecine interne, hôpital Beaujon, université Paris Diderot, Inserm UMR 1137 IAME, 92110 Clichy, France
| | - G Lina
- Microbiologie, centre hospitalo-universitaire, 69000 Lyon, France
| | - C Sobas
- Microbiologie, centre hospitalo-universitaire, 69000 Lyon, France
| | - X Gocko
- Département de médecine générale, faculté de médecine, 42000 Saint-Etienne, France
| | - J Figoni
- Maladies Infectieuses et tropicales, hôpital Avicenne, 93022 Bobigny, France; Santé publique France, 94410 St Maurice, France
| | - C Chirouze
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, UMR CNRS 6249 Université Bourgogne Franche Comté, 25000 Besançon, France
| | - Y Hansmann
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, 67000 Strasbourg, France
| | - V Hentgen
- Pédiatrie, centre hospitalier, 78000 Versailles, France
| | - P Cathebras
- Médecine interne, hôpital Nord, centre hospitalo-universitaire, 42000 Saint-Etienne, France
| | - M Dieudonné
- Centre Max Weber, CNRS, Université Lyon 2, 69000 Lyon, France
| | - O Picone
- Maternité Louis Mourier, 92700 Colombes, France
| | - B Bodaghi
- Ophtalmologie, hôpital La Pitié-Salpêtrière, 75013 Paris, France
| | - J P Gangneux
- Laboratoire de parasitologie-Mycologie, UMR_S 1085 Irset université Rennes1-Inserm-EHESP, centre hospitalo-universitaire, 35000 Rennes, France
| | - B Degeilh
- Laboratoire de parasitologie-Mycologie, UMR_S 1085 Irset université Rennes1-Inserm-EHESP, centre hospitalo-universitaire, 35000 Rennes, France
| | - H Partouche
- Cabinet de médecine générale, Saint-Ouen, département de médecine Générale, faculté de médecine. université Paris Descartes, 93400 Paris, France
| | - C Lenormand
- Dermatologie, hôpitaux universitaires de Strasbourg et faculté de médecine, université de Strasbourg, 67000 Strasbourg, France
| | - A Sotto
- Maladies infectieuses et tropicales, centre hospitalo-universitaire, 30000 Nîmes, France
| | - A Raffetin
- Maladies infectieuses et tropicales, centre hospitalier intercommunal, 94190 Villeneuve-St-Georges, France
| | - J J Monsuez
- Cardiologie, hôpital René Muret, 93270 Sevran, France
| | - C Michel
- Médecine générale, 67000 Strasbourg, France
| | - N Boulanger
- Médecine interne, hôpital Beaujon, université Paris Diderot, Inserm UMR 1137 IAME, 92110 Clichy, France
| | - C Lemogne
- Psychiatrie, hôpital européen Georges-Pompidou, AP-HP.5, Inserm U1266; Université Paris Descartes, 75015 Paris, France
| | - P Tattevin
- Maladies infectieuses et réanimation médicale, hôpital Pontchaillou, centre hospitalo-universitaire, 35033 Rennes, France.
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19
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Jeannoël M, Lina G, Rasigade JP, Lina B, Morfin F, Casalegno JS. Microorganisms associated with respiratory syncytial virus pneumonia in the adult population. Eur J Clin Microbiol Infect Dis 2018; 38:157-160. [PMID: 30353485 PMCID: PMC7101617 DOI: 10.1007/s10096-018-3407-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/16/2018] [Indexed: 01/09/2023]
Abstract
Respiratory syncytial virus (RSV) has been recognized as responsible for severe respiratory illness in adults, especially in the elderly. While pneumonia is commonly observed during RSV infection, the burden and epidemiology of bacterial superinfection is poorly understood. The aim of this study was to identify microorganisms associated with RSV-positive pneumonia in adults. A retrospective study was conducted during three consecutive winters (October to April 2013–2016) in the University Hospital of Lyon, France. During RSV circulation periods, a systematic RSV screening was performed by reverse-transcription PCR on all respiratory samples collected from adults. Records of RSV-positive patients were subsequently analyzed to identify radiologically confirmed pneumonia cases. Bacteria were identified by standard bacteriology cultures or urinary antigen screening and classified as potentially causative of pneumonia if quantification was above the specific threshold as defined by the European Manual of Clinical Microbiology. Overall, 14,792 adult respiratory samples were screened for RSV detection by PCR. In total, 292 had a positive RSV detection (2.0%) among which 89 presented with pneumonia including 27 bacterial superinfections (9.3%) with Streptococcus pneumonia, Haemophilus influenza, Staphylococcus aureus, Pseudomonas aeruginosa, and Moraxella catarrhalis. Most patients were elderly (55.6%) and patients with comorbidities (77.8%). A more severe outcome was observed for RSV-bacteria-associated pneumonia compared with RSV pneumonia: length of stay was significantly longer (16 days vs 10 days) and ICU hospitalization more frequent (66.7% vs 21.0%) (p < 0.05). In conclusion, we did not observe major differences in the epidemiology of bacterial superinfections in RSV-positive pneumonia compared to reports on post-influenza pneumonia.
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Affiliation(s)
- M Jeannoël
- Laboratoire de Virologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, Lyon, France.,CIRI, Centre International de Recherche en Infectiologie, Virpath, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, Lyon, France
| | - G Lina
- Laboratoire de Bactériologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, Lyon, France.,CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, Lyon, France
| | - J P Rasigade
- Laboratoire de Bactériologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, Lyon, France.,CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, Lyon, France
| | - B Lina
- Laboratoire de Virologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, Lyon, France.,CIRI, Centre International de Recherche en Infectiologie, Virpath, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, Lyon, France
| | - F Morfin
- Laboratoire de Virologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, Lyon, France.,CIRI, Centre International de Recherche en Infectiologie, Virpath, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, Lyon, France
| | - Jean Sebastien Casalegno
- Laboratoire de Virologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, Lyon, France. .,CIRI, Centre International de Recherche en Infectiologie, Virpath, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, École Normale Supérieure de Lyon, Univ Lyon, Lyon, France. .,Unité EMR 4610 Virologie et Pathologies Humaines (VirPath), Faculté de Médecine Lyon Est-Claude Bernard, 7 rue Guillaume Paradin, 69 372, Lyon Cedex 08, France.
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20
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Plantamura E, Dzutsev A, Chamaillard M, Djebali S, Moudombi L, Boucinha L, Grau M, Macari C, Bauché D, Dumitrescu O, Rasigade JP, Lippens S, Plateroti M, Kress E, Cesaro A, Bondu C, Rothermel U, Heikenwälder M, Lina G, Bentaher-Belaaouaj A, Marie JC, Caux C, Trinchieri G, Marvel J, Michallet MC. MAVS deficiency induces gut dysbiotic microbiota conferring a proallergic phenotype. Proc Natl Acad Sci U S A 2018; 115:10404-10409. [PMID: 30249647 PMCID: PMC6187193 DOI: 10.1073/pnas.1722372115] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Prominent changes in the gut microbiota (referred to as "dysbiosis") play a key role in the development of allergic disorders, but the underlying mechanisms remain unknown. Study of the delayed-type hypersensitivity (DTH) response in mice contributed to our knowledge of the pathophysiology of human allergic contact dermatitis. Here we report a negative regulatory role of the RIG-I-like receptor adaptor mitochondrial antiviral signaling (MAVS) on DTH by modulating gut bacterial ecology. Cohousing and fecal transplantation experiments revealed that the dysbiotic microbiota of Mavs-/- mice conferred a proallergic phenotype that is communicable to wild-type mice. DTH sensitization coincided with increased intestinal permeability and bacterial translocation within lymphoid organs that enhanced DTH severity. Collectively, we unveiled an unexpected impact of RIG-I-like signaling on the gut microbiota with consequences on allergic skin disease outcome. Primarily, these data indicate that manipulating the gut microbiota may help in the development of therapeutic strategies for the treatment of human allergic skin pathologies.
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Affiliation(s)
- Emilie Plantamura
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
| | - Amiran Dzutsev
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702
- Leidos Biomedical Research, Inc., Frederick, MD 21702
| | - Mathias Chamaillard
- Center for Infection and Immunity of Lille, Institut Pasteur de Lille, INSERM U1019, F-59000 Lille, France
- Center for Infection and Immunity of Lille, University of Lille, F-59000 Lille, France
- UMR 8204, Centre National de la Recherche Scientifique, F-59000 Lille, France
- U1019, Team 7, Equipe Fondation pour la Recherche Médicale, Institut National de la Santé et de la Recherche Médicale, F-59000 Lille, France
| | - Sophia Djebali
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
| | - Lyvia Moudombi
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
| | - Lilia Boucinha
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
| | - Morgan Grau
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
| | - Claire Macari
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
| | - David Bauché
- Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, INSERM 1052, CNRS 5286, 69008 Lyon, France
- University of Lyon, Université Claude Bernard Lyon 1, 69008 Lyon, France
- Transforming Growth Factor-b and Immune-Evasion Group, German Cancer Research Center, 69120 Heidelberg, Germany
| | - Oana Dumitrescu
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
- Department of Clinical Microbiology, Hospices Civils de Lyon, 69002 Lyon, France
| | - Jean-Philippe Rasigade
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
- Department of Clinical Microbiology, Hospices Civils de Lyon, 69002 Lyon, France
| | - Saskia Lippens
- Inflammation Research Center, Department of Biomedical Molecular Biology, Ghent University, Flanders Institute for Biotechnology, 9000 Ghent, Belgium
| | - Michelina Plateroti
- Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, INSERM 1052, CNRS 5286, 69008 Lyon, France
- University of Lyon, Université Claude Bernard Lyon 1, 69008 Lyon, France
| | - Elsa Kress
- Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, INSERM 1052, CNRS 5286, 69008 Lyon, France
- University of Lyon, Université Claude Bernard Lyon 1, 69008 Lyon, France
| | - Annabelle Cesaro
- Center for Infection and Immunity of Lille, Institut Pasteur de Lille, INSERM U1019, F-59000 Lille, France
| | - Clovis Bondu
- Center for Infection and Immunity of Lille, Institut Pasteur de Lille, INSERM U1019, F-59000 Lille, France
| | - Ulrike Rothermel
- Chronic Inflammation and Cancer, German Cancer Research Center, 69120 Heidelberg, Germany
| | - Mathias Heikenwälder
- Chronic Inflammation and Cancer, German Cancer Research Center, 69120 Heidelberg, Germany
| | - Gerard Lina
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
- Department of Clinical Microbiology, Hospices Civils de Lyon, 69002 Lyon, France
| | - Azzak Bentaher-Belaaouaj
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
| | - Julien C Marie
- Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, INSERM 1052, CNRS 5286, 69008 Lyon, France
- University of Lyon, Université Claude Bernard Lyon 1, 69008 Lyon, France
- Transforming Growth Factor-b and Immune-Evasion Group, German Cancer Research Center, 69120 Heidelberg, Germany
| | - Christophe Caux
- Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, INSERM 1052, CNRS 5286, 69008 Lyon, France
- University of Lyon, Université Claude Bernard Lyon 1, 69008 Lyon, France
| | - Giorgio Trinchieri
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702
| | - Jacqueline Marvel
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France
| | - Marie-Cecile Michallet
- Centre International de Recherche en Infectiologie, INSERM U1111-CNRS UMR5308, 69365 Lyon Cedex 07, France;
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21
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Turnidge J, Lina G, Giske C. A plea from EUCAST for standardization of disc susceptibility testing antimicrobial codes. Clin Microbiol Infect 2018; 24:1345. [PMID: 30107280 DOI: 10.1016/j.cmi.2018.08.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 08/06/2018] [Indexed: 11/26/2022]
Affiliation(s)
- J Turnidge
- Adelaide Medical School and School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia.
| | - G Lina
- Institut des Agents Infectieux, Centre de Biologie Nord, Hôpital de la Croix-Rousse, Lyon, France
| | - C Giske
- Department of Clinical Microbiology, Karolinska University Hospital, Solna, Sweden
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22
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Cornut PL, Vandenesch F, Lina G, Benito Y, Etienne J, Piras C, Kodjikian L, Denis P, Burillon C. Bacterial Contamination Rate of the Anterior Chamber during Cataract Surgery using Conventional Culture and Eubacterial PCR. Eur J Ophthalmol 2018; 20:365-9. [DOI: 10.1177/112067211002000216] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Pierre-Loïc Cornut
- Service d'Ophtalmologie, Université Lyon 1, Hospices Civils de Lyon, Hôpital Edouard Herriot
| | - François Vandenesch
- Faculté de Médecine Laennec, Université Lyon 1
- Laboratoire de Bactériologie, Hospices Civils de Lyon, Hôpital Louis Pradel, Bron
| | - Gerard Lina
- Faculté de Médecine Laennec, Université Lyon 1
- Laboratoire de Bactériologie, Hospices Civils de Lyon, Hôpital Louis Pradel, Bron
| | - Yvonne Benito
- Faculté de Médecine Laennec, Université Lyon 1
- Laboratoire de Bactériologie, Hospices Civils de Lyon, Hôpital Louis Pradel, Bron
| | - Jerome Etienne
- Faculté de Médecine Laennec, Université Lyon 1
- Laboratoire de Bactériologie, Hospices Civils de Lyon, Hôpital Louis Pradel, Bron
| | - Carolina Piras
- Service d'Ophtalmologie, Université Lyon 1, Hospices Civils de Lyon, Hôpital Edouard Herriot
| | - Laurent Kodjikian
- Service d'Ophtalmologie, Université Lyon 1, Hospices Civils de Lyon, Hôpital de la Croix Rousse, Lyon - France
| | - Philippe Denis
- Service d'Ophtalmologie, Université Lyon 1, Hospices Civils de Lyon, Hôpital Edouard Herriot
| | - Carole Burillon
- Service d'Ophtalmologie, Université Lyon 1, Hospices Civils de Lyon, Hôpital Edouard Herriot
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23
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Javouhey E, Bolze PA, Jamen C, Lina G, Badiou C, Poyart C, Portefaix A, Tristan A, Laurent F, Bes M, Vandenesch F, Gilletand Y, Dauwalder O. Similarities and Differences Between Staphylococcal and Streptococcal Toxic Shock Syndromes in Children: Results From a 30-Case Cohort. Front Pediatr 2018; 6:360. [PMID: 30547021 PMCID: PMC6280580 DOI: 10.3389/fped.2018.00360] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 11/05/2018] [Indexed: 11/24/2022] Open
Abstract
Introduction: Toxic shock syndromes (TSS) are severe shocks due to staphylococcal or streptococcal infection that require specific treatments. The early recognition of these shocks is crucial to improve their outcomes. Objectives: The primary objective of this study was to compare characteristics and outcomes of staphylococcal and streptococcal TSS in children, in order to identify putative early clinical diagnostic criteria. Secondary objectives were to determine the toxin gene profiles of associated isolated strains and the relevance of measuring Vβ T-cell signatures to confirm the diagnosis. Study design: We performed a multicenter retrospective evaluation of clinical data, biological results, and treatment outcomes of children with a confirmed or probable case of staphylococcal or streptococcal TSS. Children were consecutively included if they were admitted to the pediatric intensive care units of Lyon (France), between January 2005 and July 2011. Results: Among the 30 analyzed children, 15 presented staphylococcal TSS and 15 streptococcal TSS. The most frequent origin of staphylococcal and streptococcal TSS was the lower respiratory tract (53%) and the genital tract (47%) respectively. Non-menstrual TSS syndrome cases presented more frequently with neurological alterations, and digestive signs were predominant in menstrual forms. Compared to Staphylococcal TSS, Streptococcal TSS presented with higher organ dysfunction scores (median Pediatric Index of Mortality 2 score 20.9 (4.1-100) vs. 1.7 (1.3-2.3), p = 0.001), required respiratory support more frequently (80 vs. 33%, p = 0.02), were intubated for a longer time (3 days (0.75-5) vs. 1 day (0-1.5), p = 0.006) and had a non-significant trend of higher, case-fatality rate (20 vs. 7%, p = 0.60). The lack of antitoxin therapy was associated with higher case-fatality rate (50 vs. 4%, p = 0.04). The Vβ repertoire measurements exhibited toxin dependent-alterations in accordance with the toxin gene profiles of isolated strains in both types of toxic shock syndromes. Regarding toxin gene profiles of isolated strains, 10/15 Staphylococcus aureus belonged to clonal complex (CC) 30 and 6/12 Streptococcus pyogenes were emm1 type suggesting clonal etiologies for both staphylococcal and streptococcal TSS. Conclusion: Despite the involvement of functionally similar toxins, staphylococcal and streptococcal TSS differed by their clinical signs, origin of infection and prognosis. The detection of Vβ profiles was useful to confirm the diagnosis of staphylococcal and streptococcal TSS and for the identification of involved toxins.
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Affiliation(s)
- Etienne Javouhey
- Pediatric Emergency and Critical Care Unit, Hospices Civils de Lyon, Hôpital Femme Mère Enfant, Bron, France.,Faculté de Médecine Lyon Est, Université de Lyon, Domaine de la Buire, Lyon, France
| | - Pierre-Adrien Bolze
- Service de Gynécologie et Obstétrique, Hospices Civils de Lyon, Hôpital Femme Mère Enfant, Bron, France
| | - Claire Jamen
- Pediatric Emergency and Critical Care Unit, Hospices Civils de Lyon, Hôpital Femme Mère Enfant, Bron, France
| | - Gerard Lina
- Centre National de Référence des Staphylocoques, Institut des Agents Infectieux, Centre de Biologie et de Pathologie Nord, Hospices Civils de Lyon, Lyon, France.,Laboratoire de Bactériologie, Centre de Biologie et de Pathologie Nord, Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie (CIRI), Inserm U1111, Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France
| | - Cédric Badiou
- Centre International de Recherche en Infectiologie (CIRI), Inserm U1111, Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France
| | - Claire Poyart
- Centre National de Références des Streptocoques - Groupe Hospitalier Paris Centre Cochin-Hôtel Dieu-Broca, Assistance Publique Hôpitaux de Paris, Paris, France.,Institut Cochin Université Sorbonne Paris Descartes, Paris, France.,INSERM 1016, Institut Cochin, Paris, France.,CNRS, UMR8104, Institut Cochin, Paris, France
| | - Aurelie Portefaix
- Pediatric Emergency and Critical Care Unit, Hospices Civils de Lyon, Hôpital Femme Mère Enfant, Bron, France.,EPICIME-CIC 1407 de Lyon, Inserm, Service de Pharmacotoxicologie, Hospices Civils de Lyon, Bron, France
| | - Anne Tristan
- Faculté de Médecine Lyon Est, Université de Lyon, Domaine de la Buire, Lyon, France.,Centre National de Référence des Staphylocoques, Institut des Agents Infectieux, Centre de Biologie et de Pathologie Nord, Hospices Civils de Lyon, Lyon, France.,Laboratoire de Bactériologie, Centre de Biologie et de Pathologie Nord, Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie (CIRI), Inserm U1111, Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France
| | - Frédéric Laurent
- Faculté de Médecine Lyon Est, Université de Lyon, Domaine de la Buire, Lyon, France.,Centre National de Référence des Staphylocoques, Institut des Agents Infectieux, Centre de Biologie et de Pathologie Nord, Hospices Civils de Lyon, Lyon, France.,Laboratoire de Bactériologie, Centre de Biologie et de Pathologie Nord, Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie (CIRI), Inserm U1111, Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France
| | - Michèle Bes
- Centre National de Référence des Staphylocoques, Institut des Agents Infectieux, Centre de Biologie et de Pathologie Nord, Hospices Civils de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie (CIRI), Inserm U1111, Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France
| | - François Vandenesch
- Faculté de Médecine Lyon Est, Université de Lyon, Domaine de la Buire, Lyon, France.,Centre National de Référence des Staphylocoques, Institut des Agents Infectieux, Centre de Biologie et de Pathologie Nord, Hospices Civils de Lyon, Lyon, France.,Laboratoire de Bactériologie, Centre de Biologie et de Pathologie Nord, Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie (CIRI), Inserm U1111, Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France
| | - Yves Gilletand
- Pediatric Emergency and Critical Care Unit, Hospices Civils de Lyon, Hôpital Femme Mère Enfant, Bron, France.,Centre National de Référence des Staphylocoques, Institut des Agents Infectieux, Centre de Biologie et de Pathologie Nord, Hospices Civils de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie (CIRI), Inserm U1111, Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France
| | - Olivier Dauwalder
- Centre National de Référence des Staphylocoques, Institut des Agents Infectieux, Centre de Biologie et de Pathologie Nord, Hospices Civils de Lyon, Lyon, France.,Laboratoire de Bactériologie, Centre de Biologie et de Pathologie Nord, Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie (CIRI), Inserm U1111, Université Lyon 1, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France
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24
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Diep BA, Le VTM, Badiou C, Le HN, Pinheiro MG, Duong AH, Wang X, Dip EC, Aguiar-Alves F, Basuino L, Marbach H, Mai TT, Sarda MN, Kajikawa O, Matute-Bello G, Tkaczyk C, Rasigade JP, Sellman BR, Chambers HF, Lina G. IVIG-mediated protection against necrotizing pneumonia caused by MRSA. Sci Transl Med 2017; 8:357ra124. [PMID: 27655850 DOI: 10.1126/scitranslmed.aag1153] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 09/02/2016] [Indexed: 12/12/2022]
Abstract
New therapeutic approaches are urgently needed to improve survival outcomes for patients with necrotizing pneumonia caused by Staphylococcus aureus One such approach is adjunctive treatment with intravenous immunoglobulin (IVIG), but clinical practice guidelines offer conflicting recommendations. In a preclinical rabbit model, prophylaxis with IVIG conferred protection against necrotizing pneumonia caused by five different epidemic strains of community-associated methicillin-resistant S. aureus (MRSA) as well as a widespread strain of hospital-associated MRSA. Treatment with IVIG, either alone or in combination with vancomycin or linezolid, improved survival outcomes in this rabbit model. Two specific IVIG antibodies that neutralized the toxic effects of α-hemolysin (Hla) and Panton-Valentine leukocidin (PVL) conferred protection against necrotizing pneumonia in the rabbit model. This mechanism of action of IVIG was uncovered by analyzing loss-of-function mutant bacterial strains containing deletions in 17 genes encoding staphylococcal exotoxins, which revealed only Hla and PVL as having an impact on necrotizing pneumonia. These results demonstrate the potential clinical utility of IVIG in the treatment of severe pneumonia induced by S. aureus.
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Affiliation(s)
- Binh An Diep
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA.
| | - Vien T M Le
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Cedric Badiou
- INSERM U1111, Université Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France. Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, Bron, France
| | - Hoan N Le
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Marcos Gabriel Pinheiro
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA. Pathology Program, Fluminense Federal University, Niterói, RJ, Brazil
| | - Au H Duong
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Xing Wang
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Etyene Castro Dip
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Fábio Aguiar-Alves
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA. Pathology Program, Fluminense Federal University, Niterói, RJ, Brazil
| | - Li Basuino
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Helene Marbach
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Thuy T Mai
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Marie N Sarda
- Laboratory of Immunology, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Lyon, France
| | - Osamu Kajikawa
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98109, USA
| | - Gustavo Matute-Bello
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98109, USA
| | - Christine Tkaczyk
- Department of Infectious Diseases, MedImmune, LLC, Gaithersburg, MD 20878, USA
| | - Jean-Philippe Rasigade
- INSERM U1111, Université Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France. Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, Bron, France
| | - Bret R Sellman
- Department of Infectious Diseases, MedImmune, LLC, Gaithersburg, MD 20878, USA
| | - Henry F Chambers
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Gerard Lina
- INSERM U1111, Université Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France. Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, Bron, France.
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25
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El-Aouar Filho RA, Nicolas A, De Paula Castro TL, Deplanche M, De Carvalho Azevedo VA, Goossens PL, Taieb F, Lina G, Le Loir Y, Berkova N. Corrigendum: Heterogeneous Family of Cyclomodulins: Smart Weapons That Allow Bacteria to Hijack the Eukaryotic Cell Cycle and Promote Infections. Front Cell Infect Microbiol 2017; 7:364. [PMID: 28819588 PMCID: PMC5558432 DOI: 10.3389/fcimb.2017.00364] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 07/28/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- Rachid A El-Aouar Filho
- STLO, Agrocampus Ouest Rennes, Institut National de la Recherche AgronomiqueRennes, France.,Departamento de Biologia Geral, Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas GeraisBelo Horizonte, Brazil
| | - Aurélie Nicolas
- STLO, Agrocampus Ouest Rennes, Institut National de la Recherche AgronomiqueRennes, France
| | - Thiago L De Paula Castro
- Departamento de Biologia Geral, Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas GeraisBelo Horizonte, Brazil
| | - Martine Deplanche
- STLO, Agrocampus Ouest Rennes, Institut National de la Recherche AgronomiqueRennes, France
| | - Vasco A De Carvalho Azevedo
- Departamento de Biologia Geral, Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas GeraisBelo Horizonte, Brazil
| | - Pierre L Goossens
- HistoPathologie et Modèles Animaux/Pathogénie des Toxi-Infections Bactériennes, Institut PasteurParis, France
| | - Frédéric Taieb
- CHU Purpan USC INRA 1360-CPTP, U1043 Institut National de la Santé et de la Recherche Médicale, Pathogénie Moléculaire et Cellulaire des Infections à Escherichia coliToulouse, France
| | - Gerard Lina
- International Center for Infectiology ResearchLyon, France.,Centre National de la Recherche Scientifique, UMR5308, Institut National de la Santé et de la Recherche Médicale U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1Lyon, France.,Département de Biologie, Institut des Agents Infectieux, Hospices Civils de LyonLyon, France
| | - Yves Le Loir
- STLO, Agrocampus Ouest Rennes, Institut National de la Recherche AgronomiqueRennes, France
| | - Nadia Berkova
- STLO, Agrocampus Ouest Rennes, Institut National de la Recherche AgronomiqueRennes, France
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26
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El-Aouar Filho RA, Nicolas A, De Paula Castro TL, Deplanche M, De Carvalho Azevedo VA, Goossens PL, Taieb F, Lina G, Le Loir Y, Berkova N. Heterogeneous Family of Cyclomodulins: Smart Weapons That Allow Bacteria to Hijack the Eukaryotic Cell Cycle and Promote Infections. Front Cell Infect Microbiol 2017; 7:208. [PMID: 28589102 PMCID: PMC5440457 DOI: 10.3389/fcimb.2017.00208] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 05/09/2017] [Indexed: 12/13/2022] Open
Abstract
Some bacterial pathogens modulate signaling pathways of eukaryotic cells in order to subvert the host response for their own benefit, leading to successful colonization and invasion. Pathogenic bacteria produce multiple compounds that generate favorable conditions to their survival and growth during infection in eukaryotic hosts. Many bacterial toxins can alter the cell cycle progression of host cells, impairing essential cellular functions and impeding host cell division. This review summarizes current knowledge regarding cyclomodulins, a heterogeneous family of bacterial effectors that induce eukaryotic cell cycle alterations. We discuss the mechanisms of actions of cyclomodulins according to their biochemical properties, providing examples of various cyclomodulins such as cycle inhibiting factor, γ-glutamyltranspeptidase, cytolethal distending toxins, shiga toxin, subtilase toxin, anthrax toxin, cholera toxin, adenylate cyclase toxins, vacuolating cytotoxin, cytotoxic necrotizing factor, Panton-Valentine leukocidin, phenol soluble modulins, and mycolactone. Special attention is paid to the benefit provided by cyclomodulins to bacteria during colonization of the host.
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Affiliation(s)
- Rachid A El-Aouar Filho
- STLO, Agrocampus Ouest Rennes, Institut National de la Recherche AgronomiqueRennes, France.,Departamento de Biologia Geral, Laboratório de Genética Celular e Molecular (LGCM), Instituto de Ciências Biológicas, Universidade Federal de Minas GeraisBelo Horizonte, Brazil
| | - Aurélie Nicolas
- STLO, Agrocampus Ouest Rennes, Institut National de la Recherche AgronomiqueRennes, France
| | - Thiago L De Paula Castro
- Departamento de Biologia Geral, Laboratório de Genética Celular e Molecular (LGCM), Instituto de Ciências Biológicas, Universidade Federal de Minas GeraisBelo Horizonte, Brazil
| | - Martine Deplanche
- STLO, Agrocampus Ouest Rennes, Institut National de la Recherche AgronomiqueRennes, France
| | - Vasco A De Carvalho Azevedo
- Departamento de Biologia Geral, Laboratório de Genética Celular e Molecular (LGCM), Instituto de Ciências Biológicas, Universidade Federal de Minas GeraisBelo Horizonte, Brazil
| | - Pierre L Goossens
- HistoPathologie et Modèles Animaux/Pathogénie des Toxi-Infections Bactériennes, Institut PasteurParis, France
| | - Frédéric Taieb
- CHU Purpan USC INRA 1360-CPTP, U1043 Institut National de la Santé et de la Recherche Médicale, Pathogénie Moléculaire et Cellulaire des Infections à Escherichia coliToulouse, France
| | - Gerard Lina
- International Center for Infectiology ResearchLyon, France.,Centre National de la Recherche Scientifique, UMR5308, Institut National de la Santé et de la Recherche Médicale U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1Lyon, France.,Département de Biologie, Institut des Agents Infectieux, Hospices Civils de LyonLyon, France
| | - Yves Le Loir
- STLO, Agrocampus Ouest Rennes, Institut National de la Recherche AgronomiqueRennes, France
| | - Nadia Berkova
- STLO, Agrocampus Ouest Rennes, Institut National de la Recherche AgronomiqueRennes, France
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27
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Le VTM, Le HN, Pinheiro MG, Hahn KJ, Dinh ML, Larson KB, Flanagan SD, Badiou C, Lina G, Tkaczyk C, Sellman BR, Diep BA. Effects of Tedizolid Phosphate on Survival Outcomes and Suppression of Production of Staphylococcal Toxins in a Rabbit Model of Methicillin-Resistant Staphylococcus aureus Necrotizing Pneumonia. Antimicrob Agents Chemother 2017; 61:e02734-16. [PMID: 28137816 PMCID: PMC5365717 DOI: 10.1128/aac.02734-16] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Accepted: 01/24/2017] [Indexed: 01/30/2023] Open
Abstract
The protective efficacy of tedizolid phosphate, a novel oxazolidinone that potently inhibits bacterial protein synthesis, was compared to those of linezolid, vancomycin, and saline in a rabbit model of Staphylococcus aureus necrotizing pneumonia. Tedizolid phosphate was administered to rabbits at 6 mg/kg of body weight intravenously twice daily, which yielded values of the 24-h area under the concentration-time curve approximating those found in humans. The overall survival rate was 83% for rabbits treated with 6 mg/kg tedizolid phosphate twice daily and 83% for those treated with 50 mg/kg linezolid thrice daily (P = 0.66 by the log-rank test versus the results obtained with tedizolid phosphate). These survival rates were significantly greater than the survival rates of 17% for rabbits treated with 30 mg/kg vancomycin twice daily (P = 0.003) and 17% for rabbits treated with saline (P = 0.002). The bacterial count in the lungs of rabbits treated with tedizolid phosphate was significantly decreased compared to that in the lungs of rabbits treated with saline, although it was not significantly different from that in the lungs of rabbits treated with vancomycin or linezolid. The in vivo bacterial production of alpha-toxin and Panton-Valentine leukocidin, two key S. aureus-secreted toxins that play critical roles in the pathogenesis of necrotizing pneumonia, in the lungs of rabbits treated with tedizolid phosphate and linezolid was significantly inhibited compared to that in the lungs of rabbits treated with vancomycin or saline. Taken together, these results indicate that tedizolid phosphate is superior to vancomycin for the treatment of S. aureus necrotizing pneumonia because it inhibits the bacterial production of lung-damaging toxins at the site of infection.
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Affiliation(s)
- Vien T M Le
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, California, USA
| | - Hoan N Le
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, California, USA
| | - Marcos Gabriel Pinheiro
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, California, USA
| | - Kenneth J Hahn
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, California, USA
| | - Mary L Dinh
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, California, USA
| | | | | | - Cedric Badiou
- INSERM U1111, Université Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France
- Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, Bron, France
| | - Gerard Lina
- INSERM U1111, Université Lyon 1, CNRS UMR5308, ENS Lyon, Lyon, France
- Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, Bron, France
| | - Christine Tkaczyk
- Department of Infectious Diseases, MedImmune, Gaithersburg, Maryland, USA
| | - Bret R Sellman
- Department of Infectious Diseases, MedImmune, Gaithersburg, Maryland, USA
| | - Binh An Diep
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, California, USA
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28
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Nowrouzian FL, Lina G, Hodille E, Lindberg E, Hesselmar B, Saalman R, Adlerberth I, Wold AE. Superantigens and adhesins of infant gut commensal Staphylococcus aureus strains and association with subsequent development of atopic eczema. Br J Dermatol 2016; 176:439-445. [PMID: 27761891 DOI: 10.1111/bjd.15138] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2016] [Indexed: 12/29/2022]
Abstract
BACKGROUND According to the hygiene hypothesis, insufficient immune activation by microbes increases the risk of allergy development. Staphylococcus aureus, which is part of the skin and gut microbiota of infants in Western countries, produces a variety of T-cell-activating enterotoxins, called superantigens. OBJECTIVES To investigate whether early (0-2 months of age) gut colonization by S. aureus strains that carry specific superantigens and adhesins was related to subsequent development of atopic eczema in a Swedish birth cohort. METHODS Staphylococcus aureus was isolated from rectal swabs and cultured quantitatively from faecal samples, with individual strains being tested for carriage of genes for superantigens and adhesins. Atopic eczema was diagnosed at onset of symptoms and at 18 months of age. RESULTS Although the frequency of early gut colonization by S. aureus was not related to subsequent eczema development, the S. aureus strains that were found to colonize those infants who developed atopic eczema were less likely to carry the gene encoding the superantigen SElM (P = 0·008) and the gene for elastin-binding protein (P = 0·03), compared with strains that were isolated from infants who had not developed atopic eczema by 18 months of age. CONCLUSIONS Gut colonization by S. aureus strains carrying a certain combination of superantigen and adhesin genes was negatively associated with subsequent development of atopic eczema. Such strains may provide stimulation and promote maturation of the infant immune system.
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Affiliation(s)
- F L Nowrouzian
- Institution for Biomedicine, Department of Infectious Disease, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden
| | - G Lina
- Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, CIRI, Université Lyon 1, Inserm U1111, CNRS UMR5308, Ecole Normale Supérieure de Lyon, Lyon, France
| | - E Hodille
- Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, CIRI, Université Lyon 1, Inserm U1111, CNRS UMR5308, Ecole Normale Supérieure de Lyon, Lyon, France
| | - E Lindberg
- Institution for Biomedicine, Department of Infectious Disease, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden
| | - B Hesselmar
- Institution for Biomedicine, Department of Infectious Disease, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden.,Department of Paediatrics, Institution of Clinical Science, University of Gothenburg, Gothenburg, Sweden
| | - R Saalman
- Institution for Biomedicine, Department of Infectious Disease, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden.,Department of Paediatrics, Institution of Clinical Science, University of Gothenburg, Gothenburg, Sweden
| | - I Adlerberth
- Institution for Biomedicine, Department of Infectious Disease, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden
| | - A E Wold
- Institution for Biomedicine, Department of Infectious Disease, University of Gothenburg, Guldhedsgatan 10, S-413 46, Gothenburg, Sweden
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29
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Hodille E, Delouere L, Bouveyron C, Meugnier H, Bes M, Tristan A, Laurent F, Vandenesch F, Lina G, Dumitrescu O. In vitro activity of ceftobiprole on 440 Staphylococcus aureus strains isolated from bronchopulmonary infections. Med Mal Infect 2016; 47:152-157. [PMID: 27856079 DOI: 10.1016/j.medmal.2016.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 10/11/2016] [Indexed: 11/28/2022]
Abstract
OBJECTIVE We assessed the in vitro activity of ceftobiprole on 440 Staphylococcus aureus clinical strains isolated from bronchopulmonary infections (2010-2014). METHODS S. aureus isolates were characterized for methicillin resistance, PVL status, and clonal complex. All isolates were tested for minimal inhibitory concentrations (MIC) determination by broth microdilution method for ceftobiprole, ceftaroline fosamil, and comparator antibiotics (linezolid, tigecycline, vancomycin, and daptomycin). RESULTS A total of 325 (74%) strains were methicillin-susceptible S. aureus (MSSA) and 115 (26%) were methicillin-resistant S. aureus (MRSA); 105 (24%) S. aureus strains were PVL-positive, including 35.2% (37/105) MRSA and 64.8% (68/105) MSSA. Ceftobiprole was highly active against S. aureus with MIC90 of 1 mg/L, MICs ranging between 0.12 and 4mg/L (only one resistant strain, MIC of 4 mg/L). MIC50 and MIC90 were twice lower in MSSA than MRSA. Moreover, PVL+ MRSA were slightly more susceptible to ceftobiprole (MIC50 of 0.5 mg/L and MIC90 of 1 mg/L) than PVL- MRSA (MIC50 and MIC90 of 1 mg/L). The ceftobiprole-resistant strain was also resistant to ceftaroline fosamil and presented the D239L mutation in PBP2A. The comparator antibiotics were equally active on the strains tested, with MIC90 of 0.5 mg/L for ceftaroline fosamil, tigecycline, and daptomycin; 1 mg/L for vancomycin; and 2 mg/L for linezolid. CONCLUSIONS Our results suggest that ceftobiprole is highly active against S. aureus and is an effective alternative to vancomycin or linezolid in the management of staphylococcal pneumonia. However, close monitoring of isolates should be maintained to prevent resistant strain diffusion.
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Affiliation(s)
- E Hodille
- Centre de référence des staphylocoques, institut des agents infectieux, hospices civils de Lyon, 69495 Lyon, France; International Center for Infectiology Research, 69007 Lyon, France; CNRS UMR5308, Inserm U1111, École normale supérieure de Lyon, université Lyon 1, 69495 Lyon, France.
| | - L Delouere
- Centre de référence des staphylocoques, institut des agents infectieux, hospices civils de Lyon, 69495 Lyon, France
| | - C Bouveyron
- Centre de référence des staphylocoques, institut des agents infectieux, hospices civils de Lyon, 69495 Lyon, France
| | - H Meugnier
- Centre de référence des staphylocoques, institut des agents infectieux, hospices civils de Lyon, 69495 Lyon, France
| | - M Bes
- Centre de référence des staphylocoques, institut des agents infectieux, hospices civils de Lyon, 69495 Lyon, France; International Center for Infectiology Research, 69007 Lyon, France; CNRS UMR5308, Inserm U1111, École normale supérieure de Lyon, université Lyon 1, 69495 Lyon, France
| | - A Tristan
- Centre de référence des staphylocoques, institut des agents infectieux, hospices civils de Lyon, 69495 Lyon, France; International Center for Infectiology Research, 69007 Lyon, France; CNRS UMR5308, Inserm U1111, École normale supérieure de Lyon, université Lyon 1, 69495 Lyon, France
| | - F Laurent
- Centre de référence des staphylocoques, institut des agents infectieux, hospices civils de Lyon, 69495 Lyon, France; International Center for Infectiology Research, 69007 Lyon, France; CNRS UMR5308, Inserm U1111, École normale supérieure de Lyon, université Lyon 1, 69495 Lyon, France
| | - F Vandenesch
- Centre de référence des staphylocoques, institut des agents infectieux, hospices civils de Lyon, 69495 Lyon, France; International Center for Infectiology Research, 69007 Lyon, France; CNRS UMR5308, Inserm U1111, École normale supérieure de Lyon, université Lyon 1, 69495 Lyon, France
| | - G Lina
- Centre de référence des staphylocoques, institut des agents infectieux, hospices civils de Lyon, 69495 Lyon, France; International Center for Infectiology Research, 69007 Lyon, France; CNRS UMR5308, Inserm U1111, École normale supérieure de Lyon, université Lyon 1, 69495 Lyon, France
| | - O Dumitrescu
- Centre de référence des staphylocoques, institut des agents infectieux, hospices civils de Lyon, 69495 Lyon, France; International Center for Infectiology Research, 69007 Lyon, France; CNRS UMR5308, Inserm U1111, École normale supérieure de Lyon, université Lyon 1, 69495 Lyon, France
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30
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Couvé-Deacon E, Tristan A, Pestourie N, Faure C, Doffoel-Hantz V, Garnier F, Laurent F, Lina G, Ploy MC. Outbreak of Panton-Valentine Leukocidin-Associated Methicillin-Susceptible Staphylococcus aureus Infection in a Rugby Team, France, 2010-2011. Emerg Infect Dis 2016; 22:96-9. [PMID: 26690308 PMCID: PMC4696688 DOI: 10.3201/eid2201.150597] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Staphylococcus aureus strains that produce Panton-Valentine leukocidin are known to cause community infections. We describe an outbreak of skin abscesses caused by Panton-Valentine leukocidin-producing methicillin-susceptible S. aureus (clonal complex 121) in a professional rugby team in France during July 2010-February 2011. Eight team members were carriers; 7 had skin abscesses.
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Hodille E, Alekseeva L, Berkova N, Serrier A, Badiou C, Gilquin B, Brun V, Vandenesch F, Terman DS, Lina G. Staphylococcal Enterotoxin O Exhibits Cell Cycle Modulating Activity. Front Microbiol 2016; 7:441. [PMID: 27148168 PMCID: PMC4832122 DOI: 10.3389/fmicb.2016.00441] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 03/18/2016] [Indexed: 11/13/2022] Open
Abstract
Maintenance of an intact epithelial barrier constitutes a pivotal defense mechanism against infections. Staphylococcus aureus is a versatile pathogen that produces multiple factors including exotoxins that promote tissue alterations. The aim of the present study is to investigate the cytopathic effect of staphylococcal exotoxins SEA, SEG, SEI, SElM, SElN and SElO on the cell cycle of various human cell lines. Among all tested exotoxins only SEIO inhibited the proliferation of a broad panel of human tumor cell lines in vitro. Evaluation of a LDH release and a DNA fragmentation of host cells exposed to SEIO revealed that the toxin does not induce necrosis or apoptosis. Analysis of the DNA content of tumor cells synchronized by serum starvation after exposure to SEIO showed G0/G1 cell cycle delay. The cell cycle modulating feature of SEIO was confirmed by the flow cytometry analysis of synchronized cells exposed to supernatants of isogenic S. aureus strains wherein only supernatant of the SElO producing strain induced G0/G1 phase delay. The results of yeast-two-hybrid analysis indicated that SEIO's potential partner is cullin-3, involved in the transition from G1 to S phase. In conclusion, we provide evidence that SEIO inhibits cell proliferation without inducing cell death, by delaying host cell entry into the G0/G1 phase of the cell cycle. We speculate that this unique cell cycle modulating feature allows SEIO producing bacteria to gain advantage by arresting the cell cycle of target cells as part of a broader invasive strategy.
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Affiliation(s)
- Elisabeth Hodille
- International Center for Infectiology ResearchLyon, France; CNRS UMR5308, Inserm U1111, Ecole Normale Supérieure de Lyon - Université Lyon 1Lyon, France; Institut des Agents Infectieux, Hospices Civils de LyonLyon, France
| | - Ludmila Alekseeva
- UMR1253 STLO, Agrocampus Ouest, Institut National de la Recherche AgronomiqueRennes, France; Shemyakin-Ovchinnikov Institute of Bioorganic ChemistryMoscow, Russia
| | - Nadia Berkova
- UMR1253 STLO, Agrocampus Ouest, Institut National de la Recherche Agronomique Rennes, France
| | - Asma Serrier
- International Center for Infectiology ResearchLyon, France; CNRS UMR5308, Inserm U1111, Ecole Normale Supérieure de Lyon - Université Lyon 1Lyon, France
| | - Cedric Badiou
- International Center for Infectiology ResearchLyon, France; CNRS UMR5308, Inserm U1111, Ecole Normale Supérieure de Lyon - Université Lyon 1Lyon, France
| | - Benoit Gilquin
- iRTSV-BGE, Université Grenoble AlpesGrenoble, France; CEA, iRTSV-BGEGrenoble, France; Biologie à Grande Echelle, Institut National de la Santé et de la Recherche MédicaleGrenoble, France
| | - Virginie Brun
- iRTSV-BGE, Université Grenoble AlpesGrenoble, France; CEA, iRTSV-BGEGrenoble, France; Biologie à Grande Echelle, Institut National de la Santé et de la Recherche MédicaleGrenoble, France
| | - François Vandenesch
- International Center for Infectiology ResearchLyon, France; CNRS UMR5308, Inserm U1111, Ecole Normale Supérieure de Lyon - Université Lyon 1Lyon, France; Institut des Agents Infectieux, Hospices Civils de LyonLyon, France
| | | | - Gerard Lina
- International Center for Infectiology ResearchLyon, France; CNRS UMR5308, Inserm U1111, Ecole Normale Supérieure de Lyon - Université Lyon 1Lyon, France; Institut des Agents Infectieux, Hospices Civils de LyonLyon, France
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32
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Lina G, Greub G. Automation in bacteriology: a changing way to perform clinical diagnosis in infectious diseases. Clin Microbiol Infect 2015; 22:215-6. [PMID: 26709092 DOI: 10.1016/j.cmi.2015.12.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 12/10/2015] [Indexed: 11/25/2022]
Affiliation(s)
- G Lina
- IAI, Hospices Civils de Lyon, Lyon, France; Université Lyon 1, Domaine de la Buire, Lyon, France; INSERM U1111, CIRI, Domaine de la Buire, Lyon, France.
| | - G Greub
- Institute of Microbiology, University of Lausanne and University Hospital Centre, Lausanne, Switzerland.
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Dauwalder O, Landrieve L, Laurent F, de Montclos M, Vandenesch F, Lina G. Does bacteriology laboratory automation reduce time to results and increase quality management? Clin Microbiol Infect 2015; 22:236-43. [PMID: 26577142 DOI: 10.1016/j.cmi.2015.10.037] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 10/29/2015] [Accepted: 10/29/2015] [Indexed: 11/15/2022]
Abstract
Due to reductions in financial and human resources, many microbiological laboratories have merged to build very large clinical microbiology laboratories, which allow the use of fully automated laboratory instruments. For clinical chemistry and haematology, automation has reduced the time to results and improved the management of laboratory quality. The aim of this review was to examine whether fully automated laboratory instruments for microbiology can reduce time to results and impact quality management. This study focused on solutions that are currently available, including the BD Kiestra™ Work Cell Automation and Total Lab Automation and the Copan WASPLab(®).
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Affiliation(s)
- O Dauwalder
- Hospices Civils de Lyon, Laboratoire de Bactériologie, Centre de Biologie et de Pathologie Est, Bron, France; Hospices Civils de Lyon, Service des Techniques Biomédicales, Lyon, France.
| | - L Landrieve
- Hospices Civils de Lyon, Laboratoire de Bactériologie, Centre de Biologie et de Pathologie Nord, Lyon, France
| | - F Laurent
- Hospices Civils de Lyon, Service des Techniques Biomédicales, Lyon, France; Hospices Civils de Lyon, Laboratoire de Bactériologie, Centre de Biologie et de Pathologie Sud, Pierre Bénite, France; Université de Lyon, Université Lyon 1, Faculté de Médecine Lyon Est, Lyon, France
| | | | - F Vandenesch
- Hospices Civils de Lyon, Laboratoire de Bactériologie, Centre de Biologie et de Pathologie Est, Bron, France; Hospices Civils de Lyon, Service des Techniques Biomédicales, Lyon, France; Université de Lyon, Université Lyon 1, Faculté de Médecine Lyon Est, Lyon, France
| | - G Lina
- Hospices Civils de Lyon, Service des Techniques Biomédicales, Lyon, France; Université de Lyon, Université Lyon 1, Faculté de Médecine Lyon Est, Lyon, France; INSERM U1111-CIRI-Domaine de la Buire, Lyon, France.
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Mairpady Shambat S, Chen P, Nguyen Hoang AT, Bergsten H, Vandenesch F, Siemens N, Lina G, Monk IR, Foster TJ, Arakere G, Svensson M, Norrby-Teglund A. Modelling staphylococcal pneumonia in a human 3D lung tissue model system delineates toxin-mediated pathology. Dis Model Mech 2015; 8:1413-25. [PMID: 26398950 PMCID: PMC4631791 DOI: 10.1242/dmm.021923] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 08/27/2015] [Indexed: 12/17/2022] Open
Abstract
Staphylococcus aureus necrotizing pneumonia is recognized as a toxin-mediated disease, yet the tissue-destructive events remain elusive, partly as a result of lack of mechanistic studies in human lung tissue. In this study, a three-dimensional (3D) tissue model composed of human lung epithelial cells and fibroblasts was used to delineate the role of specific staphylococcal exotoxins in tissue pathology associated with severe pneumonia. To this end, the models were exposed to the mixture of exotoxins produced by S. aureus strains isolated from patients with varying severity of lung infection, namely necrotizing pneumonia or lung empyema, or to purified toxins. The necrotizing pneumonia strains secreted high levels of α-toxin and Panton-Valentine leukocidin (PVL), and triggered high cytotoxicity, inflammation, necrosis and loss of E-cadherin from the lung epithelium. In contrast, the lung empyema strain produced moderate levels of PVL, but negligible amounts of α-toxin, and triggered limited tissue damage. α-toxin had a direct damaging effect on the epithelium, as verified using toxin-deficient mutants and pure α-toxin. Moreover, PVL contributed to pathology through the lysis of neutrophils. A combination of α-toxin and PVL resulted in the most severe epithelial injury. In addition, toxin-induced release of pro-inflammatory mediators from lung tissue models resulted in enhanced neutrophil migration. Using a collection of 31 strains from patients with staphylococcal pneumonia revealed that strains producing high levels of α-toxin and PVL were cytotoxic and associated with fatal outcome. Also, the strains that produced the highest toxin levels induced significantly greater epithelial disruption. Of importance, toxin-mediated lung epithelium destruction could be inhibited by polyspecific intravenous immunoglobulin containing antibodies against α-toxin and PVL. This study introduces a novel model system for study of staphylococcal pneumonia in a human setting. The results reveal that the combination and levels of α-toxin and PVL correlate with tissue pathology and clinical outcome associated with pneumonia.
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Affiliation(s)
- Srikanth Mairpady Shambat
- Department of Medicine Huddinge, Karolinska Institutet, Centre for Infectious Medicine, S-141 86 Stockholm, Sweden
| | - Puran Chen
- Department of Medicine Huddinge, Karolinska Institutet, Centre for Infectious Medicine, S-141 86 Stockholm, Sweden
| | - Anh Thu Nguyen Hoang
- Department of Medicine Huddinge, Karolinska Institutet, Centre for Infectious Medicine, S-141 86 Stockholm, Sweden
| | - Helena Bergsten
- Department of Medicine Huddinge, Karolinska Institutet, Centre for Infectious Medicine, S-141 86 Stockholm, Sweden
| | - Francois Vandenesch
- CIRI, International Center for Infectiology Research, Inserm, U1111, CNRS UMR5308, Université Lyon 1, École Normale Supérieure de Lyon, 69008 Lyon, France French National Reference Center for Staphylococci, Hospices Civils de Lyon, 69677 Bron Cedex, France
| | - Nikolai Siemens
- Department of Medicine Huddinge, Karolinska Institutet, Centre for Infectious Medicine, S-141 86 Stockholm, Sweden
| | - Gerard Lina
- CIRI, International Center for Infectiology Research, Inserm, U1111, CNRS UMR5308, Université Lyon 1, École Normale Supérieure de Lyon, 69008 Lyon, France French National Reference Center for Staphylococci, Hospices Civils de Lyon, 69677 Bron Cedex, France
| | - Ian R Monk
- Department of Microbiology, Moyne Institute of Preventive Medicine, Trinity College, Dublin 2, Ireland
| | - Timothy J Foster
- Department of Microbiology, Moyne Institute of Preventive Medicine, Trinity College, Dublin 2, Ireland
| | - Gayathri Arakere
- Society for Innovation and Development, Indian Institute of Science Campus, Bangalore 560012, India
| | - Mattias Svensson
- Department of Medicine Huddinge, Karolinska Institutet, Centre for Infectious Medicine, S-141 86 Stockholm, Sweden
| | - Anna Norrby-Teglund
- Department of Medicine Huddinge, Karolinska Institutet, Centre for Infectious Medicine, S-141 86 Stockholm, Sweden
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Jeannoel M, Casalegno JS, Lina B, Lina G. Synergistic effect, in human monocytic cell-lines, of Influenza and Staphylococcus aureus on inflammation activation and cytotoxicity. J Clin Virol 2015. [DOI: 10.1016/j.jcv.2015.07.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Andrey DO, Ferry T, Siegenthaler N, Fletcher C, Calmy A, Lina G, Emonet S. Unusual staphylococcal toxic shock syndrome presenting as a scarlet-like fever. New Microbes New Infect 2015; 8:10-3. [PMID: 26543563 PMCID: PMC4590715 DOI: 10.1016/j.nmni.2015.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 07/15/2015] [Accepted: 08/07/2015] [Indexed: 10/30/2022] Open
Abstract
Diagnosis of nonmenstrual staphylococcal toxic shock syndrome (TSS) is often challenging. A female medical colleague had a rare entity, a staphylococcal pharyngitis complicated by TSS. The diagnosis was confirmed by isolation of tst-positive Staphylococcus aureus in throat culture and by identification of a specific Vβ2 expansion pattern of her T lymphocytes. Recent improvements in microbiology can be of great help for the diagnosis of nonmenstrual TSS.
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Affiliation(s)
- D O Andrey
- Service of Infectious Diseases, Department of Medical Specialties, Switzerland
| | - T Ferry
- Hospices Civils de Lyon, CIRI, Université Lyon 1, Inserm U1111, CNRS UMR5308, Ecole Normale Supérieure de Lyon, Centre National de Référence des Staphylocoques, Lyon, France
| | - N Siegenthaler
- Intensive Care Unit, Department of Anaesthesiology, Pharmacology and Intensive Care, Switzerland
| | - C Fletcher
- St Helens Clinical Commissioning Group, United Kingdom
| | - A Calmy
- Service of Infectious Diseases, Department of Medical Specialties, Switzerland
| | - G Lina
- Hospices Civils de Lyon, CIRI, Université Lyon 1, Inserm U1111, CNRS UMR5308, Ecole Normale Supérieure de Lyon, Centre National de Référence des Staphylocoques, Lyon, France
| | - S Emonet
- Service of Infectious Diseases, Department of Medical Specialties, Switzerland ; Bacteriology Laboratory, Department of Laboratories and Genetic Medicine, University Hospitals of Geneva, Geneva, Switzerland
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Messad N, Prajsnar TK, Lina G, O'Callaghan D, Foster SJ, Renshaw SA, Skaar EP, Bes M, Dunyach-Remy C, Vandenesch F, Sotto A, Lavigne JP. Existence of a Colonizing Staphylococcus aureus Strain Isolated in Diabetic Foot Ulcers. Diabetes 2015; 64:2991-5. [PMID: 25901094 PMCID: PMC4512213 DOI: 10.2337/db15-0031] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 04/09/2015] [Indexed: 12/17/2022]
Abstract
Staphylococcus aureus is an opportunistic bacterium capable of causing a wide range of severe diseases when it gains access to underlying tissues. Paradoxically, S. aureus is a common inhabitant of the skin microflora and colonizes the nares and other human mucosa. The purpose of this study was to determine the genetic basis for the differences in the pathogenic versus colonizing potential of S. aureus isolated from diabetic foot ulcers (DFUs). By performing optical map comparisons of a collection of S. aureus strains isolated from DFUs, we brought to light a prophage present in noninfecting bacteria. The phage, namely ROSA-like, was localized in a hotspot region ΦNM2 near the locus isd, the iron surface determinant system. The integrated phage significantly reduces the virulence of the strain and increases the biofilm formation. DFUs seem to be a specific niche of this colonizing strain. The ROSA-like phage represents the first description of a mobile element present mainly in S. aureus isolated from DFUs, which modulates the relationship of the bacteria with its human host. This phage appears to attenuate bacterial virulence and promote colonization.
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Affiliation(s)
- Nourreddine Messad
- National Institute of Health and Medical Research, Faculty of Medicine, University of Montpellier, Nîmes, France
| | - Tomasz K Prajsnar
- The Bateson Centre, University of Sheffield, Western Bank, Sheffield, U.K. Krebs Institute, University of Sheffield, Western Bank, Sheffield, U.K
| | - Gerard Lina
- CIRI, International Center for Infectiology Research, LabEx Ecofect, University of Lyon 1, INSERM U1111, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France Referent National Center of Staphylococci, Center of Biology and Pathology East, University Hospital Lyon, Bron, France
| | - David O'Callaghan
- National Institute of Health and Medical Research, Faculty of Medicine, University of Montpellier, Nîmes, France
| | - Simon J Foster
- Krebs Institute, University of Sheffield, Western Bank, Sheffield, U.K
| | - Steve A Renshaw
- The Bateson Centre, University of Sheffield, Western Bank, Sheffield, U.K. Krebs Institute, University of Sheffield, Western Bank, Sheffield, U.K
| | - Eric P Skaar
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, TN
| | - Michèle Bes
- CIRI, International Center for Infectiology Research, LabEx Ecofect, University of Lyon 1, INSERM U1111, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France Referent National Center of Staphylococci, Center of Biology and Pathology East, University Hospital Lyon, Bron, France
| | - Catherine Dunyach-Remy
- National Institute of Health and Medical Research, Faculty of Medicine, University of Montpellier, Nîmes, France Department of Microbiology, University Hospital Carémeau, Nîmes, France
| | - François Vandenesch
- CIRI, International Center for Infectiology Research, LabEx Ecofect, University of Lyon 1, INSERM U1111, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Lyon, France Referent National Center of Staphylococci, Center of Biology and Pathology East, University Hospital Lyon, Bron, France
| | - Albert Sotto
- National Institute of Health and Medical Research, Faculty of Medicine, University of Montpellier, Nîmes, France Department of Infectious Diseases, University Hospital Carémeau, Nîmes, France
| | - Jean-Philippe Lavigne
- National Institute of Health and Medical Research, Faculty of Medicine, University of Montpellier, Nîmes, France Department of Microbiology, University Hospital Carémeau, Nîmes, France
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Pin D, Guérin-Faublée V, Garreau V, Breysse F, Dumitrescu O, Flandrois JP, Lina G. Mycobacterium species related to M. leprae and M. lepromatosis from cows with bovine nodular thelitis. Emerg Infect Dis 2015; 20:2111-4. [PMID: 25417797 PMCID: PMC4257800 DOI: 10.3201/eid2012.140184] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Bovine nodular thelitis is a granulomatous dermatitis associated with infection with acid-fast bacteria. To identify the mycobacterium responsible for this infection, we conducted phylogenetic investigations based on partial sequencing of 6 genes. These bacteria were identified as an undescribed Mycobacterium species that was phylogenetically related to M. leprae and M. lepromatosis.
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Beraud L, Gervasoni K, Freydiere AM, Descours G, Ranc AG, Vandenesch F, Lina G, Gaia V, Jarraud S. Comparison of Sofia Legionella FIA and BinaxNOW® Legionella urinary antigen card in two national reference centers. Eur J Clin Microbiol Infect Dis 2015; 34:1803-7. [PMID: 26092030 PMCID: PMC4545177 DOI: 10.1007/s10096-015-2415-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 05/17/2015] [Indexed: 12/05/2022]
Abstract
The Sofia Legionella Fluorescence Immunoassay (FIA; Quidel) is a recently introduced rapid immunochromatographic diagnostic test for Legionnaires’ disease using immunofluorescence technology designed to enhance its sensitivity. The aim of this study was to evaluate its performance for the detection of urinary antigens for Legionella pneumophila serogroup 1 in two National Reference Centers for Legionella. The sensitivity and specificity of the Sofia Legionella FIA test were determined in concentrated and nonconcentrated urine samples, before and after boiling, in comparison with the BinaxNOW® Legionella Urinary Antigen Card (UAC; Alere). Compared with BinaxNOW® Legionella UAC, the sensitivity of the Sofia Legionella test was slightly higher in nonconcentrated urine samples and was identical in concentrated urine samples. The specificity of the Sofia Legionella FIA test was highly reduced by the concentration of urine samples. In nonconcentrated samples, a lack of specificity was observed in 2.3 % of samples, all of them resolved by heat treatment. The Sofia Legionella FIA is a sensitive test for detecting Legionella urinary antigens with no previous urine concentration. However, all positive samples have to be re-tested after boiling to reach a high specificity. The reading is automatized on the Sofia analyzer, which can be connected to laboratory information systems, facilitating accurate and rapid reporting of results.
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Affiliation(s)
- L Beraud
- French Reference Center for Legionella, Laboratory of Microbiology, Groupe Hospitalier Est, Hospices Civils de Lyon, Lyon, France
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40
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Cardot-Martin E, Casalegno JS, Badiou C, Dauwalder O, Keller D, Prévost G, Rieg S, Kern WV, Cuerq C, Etienne J, Vandenesch F, Lina G, Dumitrescu O. α-Defensins partially protect human neutrophils against Panton-Valentine leukocidin produced by Staphylococcus aureus. Lett Appl Microbiol 2015; 61:158-64. [PMID: 25963798 DOI: 10.1111/lam.12438] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 04/30/2015] [Accepted: 05/02/2015] [Indexed: 01/15/2023]
Abstract
UNLABELLED α-Defensins produced by neutrophils are important effector molecules of the innate immune system. In addition to their microbicidal effects, α-defensins have the ability to neutralize bacterial toxins. Panton-Valentine leukocidin (PVL) is the hallmark of community-acquired methicillin-resistant Staphylococcus aureus. Staphylococcus aureus that produce PVL are responsible for severe diseases, including necrotizing pneumonia. Polymorphonuclear neutrophils (PMNs) are the target cells of PVL action. The goal of this study was to elucidate the effect of a group of α-defensins known as the human neutrophil peptides (HNPs) on the interactions between LukS-PV and LukF-PV, which compose PVL, and human PMNs. We observed that HNPs bound to both subunits of PVL and significantly decreased PVL pore formation in PMNs, with a maximum inhibition of 27%. When various HNP molecules were tested individually under the same conditions, we observed that HNP3, but not HNP1 or 2, decreased pore formation. Similarly, HNP3 significantly decreased PVL-induced PMN lysis, with a maximum inhibition of 31%. Interestingly, HNPs did not affect LukS-PV LukF-PV oligomerization, LukS-PV LukF-PV binding to PMNs or calcium influx induced by PVL in PMNs. Our results suggest that HNP3 partially protects neutrophils against PVL by interfering with the conformational changes of PVL required to form a functional pore. SIGNIFICANCE AND IMPACT OF THE STUDY Panton-Valentine leukocidin (PVL) is a pore-forming toxin produced by Staphylococcus aureus, responsible for neutrophil damage and key player of severe staphylococcal diseases. Antimicrobial peptides produced by neutrophils (HNP1-3) neutralize several other bacterial cytotoxins. We examined the impact of human neutrophil peptides (HNPs) on PVL cytotoxicity against human neutrophils and we found that HNPs bind to both LukS and LukF components of PVL, thereby inhibiting pore formation and neutrophil lysis. Our results suggest that HNP3 may impair PVL conformational changes required to form a functional pore and provide insight into the pathogenesis of PVL-related staphylococcal infection, with potential impact on the disease outcome.
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Affiliation(s)
- E Cardot-Martin
- Centre International de Recherche en Infectiologie, INSERM U1111, University of Lyon 1, Lyon, France.,Hospices Civils de Lyon, Lyon, France
| | | | - C Badiou
- Centre International de Recherche en Infectiologie, INSERM U1111, University of Lyon 1, Lyon, France.,Hospices Civils de Lyon, Lyon, France
| | - O Dauwalder
- Centre International de Recherche en Infectiologie, INSERM U1111, University of Lyon 1, Lyon, France.,Hospices Civils de Lyon, Lyon, France
| | - D Keller
- Department of Microbiology, University of Strasbourg, Strasbourg, France
| | - G Prévost
- Department of Microbiology, University of Strasbourg, Strasbourg, France
| | - S Rieg
- Center for Infectious Diseases and Travel Medicine, University Medical Center, Freiburg, Germany
| | - W V Kern
- Center for Infectious Diseases and Travel Medicine, University Medical Center, Freiburg, Germany
| | - C Cuerq
- Hospices Civils de Lyon, Lyon, France.,Laboratoire de Biochimie, Centre de Biologie Sud, Lyon, France
| | - J Etienne
- Centre International de Recherche en Infectiologie, INSERM U1111, University of Lyon 1, Lyon, France.,Hospices Civils de Lyon, Lyon, France
| | - F Vandenesch
- Centre International de Recherche en Infectiologie, INSERM U1111, University of Lyon 1, Lyon, France.,Hospices Civils de Lyon, Lyon, France
| | - G Lina
- Centre International de Recherche en Infectiologie, INSERM U1111, University of Lyon 1, Lyon, France.,Hospices Civils de Lyon, Lyon, France
| | - O Dumitrescu
- Centre International de Recherche en Infectiologie, INSERM U1111, University of Lyon 1, Lyon, France.,Hospices Civils de Lyon, Lyon, France
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41
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Affiliation(s)
- J-P Rasigade
- CIRI, Inserm U1111, Centre National de référence des Staphylocoques, Université Lyon 1, Hospices Civils de Lyon, Lyon, France
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42
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Deplanche M, Filho RAEA, Alekseeva L, Ladier E, Jardin J, Henry G, Azevedo V, Miyoshi A, Beraud L, Laurent F, Lina G, Vandenesch F, Steghens JP, Le Loir Y, Otto M, Götz F, Berkova N. Phenol-soluble modulin α induces G2/M phase transition delay in eukaryotic HeLa cells. FASEB J 2015; 29:1950-9. [PMID: 25648996 DOI: 10.1096/fj.14-260513] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 01/02/2015] [Indexed: 12/20/2022]
Abstract
Staphylococcus aureus is a gram-positive bacterium responsible for a wide range of infections. Host cell cycle alteration is a sophisticated mechanism used by pathogens to hijack the defense functions of host cells. We previously demonstrated that S. aureus MW2 (USA400) bacteria induced a G2/M phase transition delay in HeLa cells. We demonstrate here that this activity is triggered by culture supernatant compounds. Using size exclusion chromatography of the MW2 supernatant, followed by mass spectroscopy analysis of corresponding peaks, we identified phenol-soluble modulin α (PSMα) peptides as the likely candidates for this effect. Indeed, synthetic PSMα1 and PSMα3 caused a G2/M phase transition delay. The implication of PSMα in cell cycle alteration was confirmed by comparison of S. aureus Los Angeles County clone (LAC) wild-type with the isogenic mutant LAC∆psmα, which lacks the psmα operon encoding PSMα1-4. PSMα-induced G2/M transition delay correlated with a decrease in the defensin genes expression suggesting a diminution of antibacterial functions of epithelial cells. By testing the supernatant of S. aureus human clinical isolates, we found that the degree of G2/M phase transition delay correlated with PSMα1 production. We show that PSMs secreted by S. aureus alter the host cell cycle, revealing a newly identified mechanism for fostering an infection.
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Affiliation(s)
- Martine Deplanche
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Rachid Aref El-Aouar Filho
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Ludmila Alekseeva
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Emilie Ladier
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Julien Jardin
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Gwénaële Henry
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Vasco Azevedo
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Anderson Miyoshi
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Laetitia Beraud
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Frederic Laurent
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Gerard Lina
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - François Vandenesch
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Jean-Paul Steghens
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Yves Le Loir
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Michael Otto
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Friedrich Götz
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
| | - Nadia Berkova
- *Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1253 STLO, Rennes, France; Agrocampus Ouest, Unité Mixtes de Recherche1253 STLO, Rennes, France; Instituto de Ciências Biológicas- Universidade Federal de Minas Gerais , Belo Horizonte- Minas Gerais, Brazil; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia; Centre International de Recherche en Infectiologie, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique Unité Mixtes de Recherche5308, Université Lyon 1, Lyon, France; Hospices Civil de Lyon, Lyon, France; Laboratory of Human Bacterial Pathogenesis, National Institutes of Health, Bethesda, Maryland, USA; and **Microbial Genetics, University of Tübingen, Tübingen, Germany
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Catho G, Couraud S, Grard S, Bouaziz A, Sénéchal A, Valour F, Perpoint T, Braun E, Biron F, Ferry T, Chidiac C, Freymond N, Perrot E, Souquet PJ, Maury JM, Tronc F, Veziris N, Lina G, Dumitrescu O, Ader F. Management of emerging multidrug-resistant tuberculosis in a low-prevalence setting. Clin Microbiol Infect 2015; 21:472.e7-10. [PMID: 25708551 DOI: 10.1016/j.cmi.2014.12.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 12/16/2014] [Accepted: 12/30/2014] [Indexed: 10/24/2022]
Abstract
Multidrug-resistant (MDR) tuberculosis (TB) is an emerging concern in communities with a low TB prevalence and a high standard of public health. Twenty-three consecutive adult MDR TB patients who were treated at our institution between 2007 and 2013 were reviewed for demographic characteristics and anti-TB treatment management, which included surgical procedures and long-term patient follow-up. This report of our experience emphasizes the need for an individualized approach as MDR TB brings mycobacterial disease management to a higher level of expertise, and for a balance to be found between international current guidelines and patient-tailored treatment strategies.
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Affiliation(s)
- G Catho
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France; Service de Pneumologie et Allergologie Pédiatriques, Hôpital Femme-Mère-Enfant, Hospices Civils de Lyon, Bron, France
| | - S Couraud
- Service de Pneumologie et Oncologie Thoracique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
| | - S Grard
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - A Bouaziz
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - A Sénéchal
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - F Valour
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - T Perpoint
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - E Braun
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - F Biron
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - T Ferry
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France; Inserm U1111 CIRI, Université Claude Bernard Lyon I, Lyon, France
| | - C Chidiac
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - N Freymond
- Service de Pneumologie et Oncologie Thoracique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
| | - E Perrot
- Service de Pneumologie et Oncologie Thoracique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
| | - P-J Souquet
- Service de Pneumologie et Oncologie Thoracique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
| | - J-M Maury
- Departement de Chirurgie Thoracique, Hôpital Louis Pradel, Hospices Civils de Lyon, Bron, France
| | - F Tronc
- Departement de Chirurgie Thoracique, Hôpital Louis Pradel, Hospices Civils de Lyon, Bron, France
| | - N Veziris
- AP-HP, Hôpital Pitié-Salpêtrière, Laboratoire de Bactériologie-Hygiène, Centre National de Référence des Mycobactéries et de la Résistance des Mycobactéries aux Antituberculeux, Paris, France; UPMC, INSERM, Centre d'Immunologie et des Maladies Infectieuses, E13, Paris, France
| | - G Lina
- Inserm U1111 CIRI, Université Claude Bernard Lyon I, Lyon, France; Laboratoire de Microbiologie, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
| | - O Dumitrescu
- Inserm U1111 CIRI, Université Claude Bernard Lyon I, Lyon, France; Laboratoire de Microbiologie, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
| | - F Ader
- Service de Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France; Inserm U1111 CIRI, Université Claude Bernard Lyon I, Lyon, France.
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Rasigade JP, Trouillet-Assant S, Breurec S, Antri K, Lina G, Bes M, Tristan A, Badiou C, Bernelin M, Fall C, Ramdani-Bouguessa N, Etienne J, Vandenesch F, Laurent F. The levels of antibodies to Panton-Valentine leukocidin (PVL) vary with PVL prevalence along a north-to-south gradient. Eur J Clin Microbiol Infect Dis 2015; 34:927-33. [PMID: 25575949 DOI: 10.1007/s10096-014-2307-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 12/14/2014] [Indexed: 11/24/2022]
Abstract
Recent research on Staphylococcus aureus vaccine development has focused on active immunization against Panton-Valentine leukocidin (PVL), a potent leukotoxin associated with both superficial and severe deep-seated infections. PVL prevalence is highly variable worldwide, but it is unknown to what extent immunity to PVL varies between patients from geographic areas with different PVL-positive S. aureus prevalences. We conducted a retrospective multicentric study of anti-PVL and anti-alpha-toxin (Hla) antibody levels in uninfected adult patients from France (low PVL prevalence; n = 200), Algeria (moderate prevalence; n = 143), and Senegal (high prevalence; n = 228). The antibody levels were quantified by an enzyme-linked immunosorbent assay (ELISA) procedure. Because Hla is present in virtually all S. aureus strains, its corresponding antibody levels were considered to reflect population exposure to S. aureus. Compared with French participants, the average anti-PVL antibody levels were 2.5-fold and 8.2-fold higher in Algerian and Senegalese participants, respectively (p < 0.001). Conversely, anti-Hla antibody levels did not differ between participants from the three countries, suggesting that the observed differences in anti-PVL antibody levels were not biased by variations in population exposure to S. aureus. Hence, anti-PVL antibody levels in the general populations of France, Algeria, and Senegal vary widely and match variations in PVL-positive S. aureus strain prevalence, with an increasing north-to-south gradient. To conclude, immunity to PVL in a given population correlates with local PVL prevalence. This finding can help to inform PVL vaccine strategies.
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Affiliation(s)
- J-P Rasigade
- CIRI, International Center for Infectiology Research, Université de Lyon, Lyon, France,
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Dumitrescu O, Lina G. What is the place of linezolid in the treatment of methicillin-resistant Staphylococcus aureus nosocomial pneumonia and complicated skin and soft tissue infections in Europe? Clin Microbiol Infect 2014; 20 Suppl 4:1-2. [PMID: 24580737 DOI: 10.1111/1469-0691.12496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- O Dumitrescu
- CIRI, Université Lyon1, Inserm U1111, CNRS UMR5308, Ecole Normale Supérieure de Lyon, Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, Lyon, France
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46
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Mairpady Shambat S, Haggar A, Vandenesch F, Lina G, van Wamel WJB, Arakere G, Svensson M, Norrby-Teglund A. Levels of alpha-toxin correlate with distinct phenotypic response profiles of blood mononuclear cells and with agr background of community-associated Staphylococcus aureus isolates. PLoS One 2014; 9:e106107. [PMID: 25166615 PMCID: PMC4148398 DOI: 10.1371/journal.pone.0106107] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 07/28/2014] [Indexed: 11/18/2022] Open
Abstract
Epidemiological studies of Staphylococcus aureus have shown a relation between certain clones and the presence of specific virulence genes, but how this translates into virulence-associated functional responses is not fully elucidated. Here we addressed this issue by analyses of community-acquired S. aureus strains characterized with respect to antibiotic resistance, ST types, agr types, and virulence gene profiles. Supernatants containing exotoxins were prepared from overnight bacterial cultures, and tested in proliferation assays using human peripheral blood mononuclear cells (PBMC). The strains displayed stable phenotypic response profiles, defined by either a proliferative or cytotoxic response. Although, virtually all strains elicited superantigen-mediated proliferative responses, the strains with a cytotoxic profile induced proliferation only in cultures with the most diluted supernatants. This indicated that the superantigen-response was masked by a cytotoxic effect which was also confirmed by flow cytometry analysis. The cytotoxic supernatants contained significantly higher levels of α-toxin than did the proliferative supernatants. Addition of α-toxin to supernatants characterized as proliferative switched the response into cytotoxic profiles. In contrast, no effect of Panton Valentine Leukocidin, δ-toxin or phenol soluble modulin α-3 was noted in the proliferative assay. Furthermore, a significant association between agr type and phenotypic profile was found, where agrII and agrIII strains had predominantly a proliferative profile whereas agrI and IV strains had a predominantly cytotoxic profile. The differential response profiles associated with specific S. aureus strains with varying toxin production could possibly have an impact on disease manifestations, and as such may reflect specific pathotypes.
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Affiliation(s)
| | - Axana Haggar
- Karolinska Institutet, Centre for Infectious Medicine, Stockholm, Sweden
| | - Francois Vandenesch
- CIRI, International Center for Infectiology Research, LabEx Ecofect, Université Lyon 1, Inserm U1111, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Centre National de Référence des Staphylocoques, Hospices civils de Lyon, Lyon, France
| | - Gerard Lina
- CIRI, International Center for Infectiology Research, LabEx Ecofect, Université Lyon 1, Inserm U1111, Ecole Normale Supérieure de Lyon, CNRS UMR5308, Centre National de Référence des Staphylocoques, Hospices civils de Lyon, Lyon, France
| | - Willem J. B. van Wamel
- Department of Medical Microbiology and Infectious Diseases, Erasmus Medical Centre, Rotterdam, Netherlands
| | - Gayathri Arakere
- Society for Innovation and Development, Indian Institute of Science Campus, Bangalore, India
| | - Mattias Svensson
- Karolinska Institutet, Centre for Infectious Medicine, Stockholm, Sweden
| | - Anna Norrby-Teglund
- Karolinska Institutet, Centre for Infectious Medicine, Stockholm, Sweden
- * E-mail:
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47
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Purrello S, Daum R, Edwards G, Lina G, Lindsay J, Peters G, Stefani S. Meticillin-resistant Staphylococcus aureus (MRSA) update: New insights into bacterial adaptation and therapeutic targets. J Glob Antimicrob Resist 2014; 2:61-69. [DOI: 10.1016/j.jgar.2014.02.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 02/06/2014] [Indexed: 12/23/2022] Open
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Senneville E, Brière M, Neut C, Messad N, Lina G, Richard JL, Sotto A, Lavigne JP. First report of the predominance of clonal complex 398 Staphylococcus aureus strains in osteomyelitis complicating diabetic foot ulcers: a national French study. Clin Microbiol Infect 2014; 20:O274-7. [DOI: 10.1111/1469-0691.12375] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 08/02/2013] [Accepted: 08/06/2013] [Indexed: 11/29/2022]
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Descours G, Cassier P, Forey F, Ginevra C, Etienne J, Lina G, Jarraud S. Evaluation of BMPA, MWY, GVPC and BCYE media for the isolation of Legionella species from respiratory samples. J Microbiol Methods 2014; 98:119-21. [DOI: 10.1016/j.mimet.2014.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 01/03/2014] [Accepted: 01/03/2014] [Indexed: 10/25/2022]
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Croisier-Bertin D, Hayez D, Da Silva S, Labrousse D, Biek D, Badiou C, Dumitrescu O, Guerard P, Charles PE, Piroth L, Lina G, Vandenesch F, Chavanet P. In vivo efficacy of ceftaroline fosamil in a methicillin-resistant panton-valentine leukocidin-producing Staphylococcus aureus rabbit pneumonia model. Antimicrob Agents Chemother 2014; 58:1855-61. [PMID: 24395236 PMCID: PMC4023709 DOI: 10.1128/aac.01707-13] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 11/20/2013] [Indexed: 01/03/2023] Open
Abstract
Ceftaroline, the active metabolite of the prodrug ceftaroline fosamil, is a cephalosporin with broad-spectrum in vitro activity against Gram-positive organisms, including methicillin-resistant Staphylococcus aureus (MRSA) and multidrug-resistant Streptococcus pneumoniae (MDRSP), and common Gram-negative pathogens. This study investigated the in vivo activity of ceftaroline fosamil compared with clindamycin, linezolid, and vancomycin in a severe pneumonia model due to MRSA-producing Panton-Valentine leukocidin (PVL). A USA300 PVL-positive clone was used to induce pneumonia in rabbits. Infected rabbits were randomly assigned to no treatment or simulated human-equivalent dosing with ceftaroline fosamil, clindamycin, linezolid, or vancomycin. Residual bacterial concentrations in the lungs and spleen were assessed after 48 h of treatment. PVL expression was measured using a specific enzyme-linked immunosorbent assay (ELISA). Ceftaroline, clindamycin, and linezolid considerably reduced mortality rates compared with the control, whereas vancomycin did not. Pulmonary and splenic bacterial titers and PVL concentrations were greatly reduced by ceftaroline, clindamycin, and linezolid. Ceftaroline, clindamycin, and linezolid were associated with reduced pulmonary tissue damage based on significantly lower macroscopic scores. Ceftaroline fosamil, clindamycin, and, to a lesser extent, linezolid were efficient in reducing bacterial titers in both the lungs and spleen and decreasing macroscopic scores and PVL production compared with the control.
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Affiliation(s)
| | | | | | | | | | - Cedric Badiou
- CIRI, International Center for Infectiology Research, LabEx Ecofect, Université Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, and CNRS, UMR 5308, Lyon, France
| | - Oana Dumitrescu
- CIRI, International Center for Infectiology Research, LabEx Ecofect, Université Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, and CNRS, UMR 5308, Lyon, France
| | | | - Pierre-Emmanuel Charles
- Ventilator Innate Immunity Pneumonia Team, Pôle M.E.R.S., UMR 1347, INRA, Burgundy University, Dijon, France
| | - Lionel Piroth
- Département Infectiologie, University Hospital, Dijon, France
| | - Gerard Lina
- CIRI, International Center for Infectiology Research, LabEx Ecofect, Université Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, and CNRS, UMR 5308, Lyon, France
| | - Francois Vandenesch
- CIRI, International Center for Infectiology Research, LabEx Ecofect, Université Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, and CNRS, UMR 5308, Lyon, France
| | - Pascal Chavanet
- Vivexia Laboratory, Dijon, France
- Département Infectiologie, University Hospital, Dijon, France
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