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Understanding the mechanisms by which bacteria disseminate in the host beyond the port-of-entry

from basic science:
  • bacteria
  • pathogenesis
to the translational research:
  • anti-infective
  • vaccine
  • diagnostic
Xavier Nassif
Alain Charbit
Pathogenesis of systemic infections

Xavier Nassif, M.D-PhD. is Professor of Microbiology at the Medical School Paris Descartes. He obtained is Medical Degree in 1987 and a PhD at the Pasteur Institute in 1989. After a postdoctoral fellowship he joined in 1992 the « Faculté de Médecine Paris Descartes » where he is heading the Clinical Microbiology Laboratory and the Institut Necker-Enfants Malades.

Alain Charbit, PhD, is Research Director (DR1) from the CNRS. He obtained a PhD at the Pasteur Institute in 1990. He was recruited by the CNRS in 1997. After 15 years at the Pasteur Institute, he joined in 1998 the « Faculté de Médecine Paris Descartes » where he is currently co-heading team 11 at the Institut Necker-Enfants Malades.


Bacterial systemic infections remain a public health concern in the developed world, Our long term goal is a better understanding of the pathogenesis of these infections in order to identify new targets for prevention and treatment.


Systemic infections are characterized by the ability of infecting pathogens to colonize and to disseminate from their port-of-entry into the bloodstream. Two types of bacterial pathogens disseminate beyond their port-of-entry:

  1. the extra cellular pathogens that can survive in the extracellular fluids and have developed attributes that prevent phagocytosis by polymorphonuclear cells and killing by the serum. These bacteria are essentially those responsible for sepsis that remains a life-threatening condition and a major contributor of public health and economic burden in the industrialized world. These pathogens are in direct contact with endothelial cells. Much remain to be understood on the mechanisms and consequences of this bacterial interaction with the capillaries, even though this interaction is a prerequisite for metastatic dissemination (crossing of the blood brain barrier for example).
  2. The intracellular pathogens that disseminate in the body using a Trojan horse such as macrophages. The mechanisms by which these latter pathogens resist to the bactericidal Intracellular environment have long been studied. On the other hand, these pathogens often critically rely on acquisition of host-derived nutrients for the development of a successful infection. Since nutrient availability depends on host metabolism and differs depending on localization within tissues and varies over the course of infection, intracellular pathogens have had to adapt their metabolism to these host metabolic rearrangements.

Research objectives

Four main research axes are being pursued.

  • The first approach focuses on the mechanisms and consequences of the interaction of extra-cellular bacterial pathogens with endothelial cells using Neisseria meningtidis as paradigm. This pathogen following bloodstream invasion from the nasopharynx establishes a strong interaction with the capillaries. This interaction is associated with the occurrence of meningitis and Purpura fulminans. Our objectives are to provide a coherent picture of meningococcal pathogenesis by dissecting the interaction between meningococci and endothelial cells at the molecular, cellular, and tissular levels.
  • The second approach consists in deciphering the molecular bases of the host-pathogen metabolic interplay of an intracellular bacterial pathogen, using Francisella tularensis as a model organism. The virulence of this Gram-negative intracellular bacterium, causative agent of the zoonotic disease tularemia, is tightly linked to its capacity to multiply in the cytosolic compartment of infected macrophages. Our objectives are: i) to understand how the metabolism of this bacteria has evolved to adapt to its intracellular niche; and ii) to define how the metabolism of the host itself is modified in response to the infection.
  • The third approach aims at providing new insights on Staphylococcus aureus pathogenesis, which is one of the deadliest bacteria in Western countries. We are particularly committed to the study of virulence factors associated with chronic infections and we have implemented translational research projects involving cohorts of children with chronic S. aureus infections (cystic fibrosis and epidermolysis bullosa). Bacterial adaptation explains why bacteria persist at infected sites despite antibiotic treatment. This project will provide an understanding of the molecular mechanisms of adaptation of S. aureus when subjected to high in vivo selection pressure and the consequences on the host inflammatory response.
    Our two main objectives are: i) to identify genetic mutations modulating toxicity and inflammation, through an unbiased proteogenomic analysis of adapted S. aureus isolates and ii) to study the impact of S. aureus adaptation in vitro and in vivo, with a focus on the host inflammatory response and cytokine secretion.
  • The fourth axis is "Genomic approaches to microbial pathogenesis and vaccine development". In developed countries, 20% of the bacterial meningitis in neonates is due to Escherichia coli K1. We use TnSeq to (i) identify and understand the genes and regulatory genetic elements contributing to optimal fitness of E. coli K1 from GI tract colonization, to crossing of the blood brain barrier and, (ii), identify and develop new vaccine candidates via a process we have called TnSeq vaccinology. This approach exploits the TnSeq tool to test the effect of host immunity, induced by vaccination with a broadly-protective immunogen such as antibiotic-killed cells, on selection of strains with Tn-interrupted genes. This approach should impact all types of vaccine antigens, not just proteins, a limitation of current antigen identification systems such as reverse vaccinology.

5 main publications

  • Ramond E, et al. (2014) Glutamate utilization couples oxidative stress defense and the tricarboxylic acid cycle in Francisella phagosomal escape. PLoS Pathogens Jan. 10(1):e10003893.
  • Bernard SC, et al. (2014) Pathogenic Neisseria meningitidis utilizes CD147 for vascular colonization. Nat Med 20(7):725-731.
  • Ramond E, et al. (2015) Importance of host cell arginine uptake in Francisella phagosomal escape and ribosomal protein amounts. Mol Cell Proteomics Jan 23. pii: mcp.M114.044552.
  • Jamet A, et al. (2015) A new family of secreted toxins in pathogenic Neisseria species. PLoS Pathogens 11(1):e1004592.
  • Kolappan S, et al. (2016) Structure of the Neisseria meningitidis Type IV pilus. Nat Commun 7:13015.
Last 30 publications


  • Multitasking Actors of Staphylococcus aureus Metabolism and Virulence.
    Tan X, Coureuil M, Charbit A, Jamet A.
    Trends Microbiol. 2020 Jan;28(1):6-9. doi: 10.1016/j.tim.2019.10.013. Epub 2019 Nov 18.
  • Receptor recognition by meningococcal type IV pili relies on a specific complex N-glycan.
    Le Guennec L, Virion Z, Bouzinba-Ségard H, Robbe-Masselot C, Léonard R, Nassif X, Bourdoulous S, Coureuil M.
    Proc Natl Acad Sci U S A. 2020 Feb 4;117(5):2606-2612. doi: 10.1073/pnas.1919567117.
  • 2019

  • Transketolase of Staphylococcus aureus is involved in the control of master regulators of stress response during infection.
    Tan X, Ramond E, Jamet A, Barnier JP, Decaux-Tramoni B, Dupuis M, Euphrasie D, Tros F, Nemazanyy I, Ziveri J, Nassif X, Charbit A, Coureuil M.
    J Infect Dis. 2019 Aug 17. pii: jiz404. doi: 10.1093/infdis/jiz404.
    PMID: 31420648
  • Targeting Type IV pili as an antivirulence strategy against invasive meningococcal disease.
    Denis K, Le Bris M, Le Guennec L, Barnier JP, Faure C, Gouge A, Bouzinba-Ségard H, Jamet A, Euphrasie D, Durel B, Barois N, Pelissier P, Morand PC, Coureuil M, Lafont F, Join-Lambert O, Nassif X, Bourdoulous S.
    Nat Microbiol. 2019 Jun;4(6):972-984. doi: 10.1038/s41564-019-0395-8. Epub 2019 Mar 25.
    PMID: 30911127
  • Molecular interactions between Neisseria meningitidis and its human host.
    Coureuil M, Jamet A, Bille E, Lécuyer H, Bourdoulous S, Nassif X.
    Cell Microbiol. 2019 Jun 5:e13063. doi: 10.1111/cmi.13063.
    PMID: 31167044
  • Airway surface liquid acidification initiates host defense abnormalities in Cystic Fibrosis.
    Simonin J, Bille E, Crambert G, Noel S, Dreano E, Edwards A, Hatton A, Pranke I, Villeret B, Cottart CH, Vrel JP, Urbach V, Baatallah N, Hinzpeter A, Golec A, Touqui L, Nassif X, Galietta LJV, Planelles G, Sallenave JM, Edelman A, Sermet-Gaudelus I.
    Sci Rep. 2019 Apr 24;9(1):6516. doi: 10.1038/s41598-019-42751-4.
    PMID: 31019198 (Free PMC Article)
  • Chronic Staphylococcus aureus lung infection correlates with proteogenomic and metabolic adaptations leading to an increased intracellular persistence.
    Tan X, Coureuil M, Ramond E, Euphrasie D, Dupuis M, Tros F, Meyer J, Nemazanyy I, Chhuon C, Guerrera IC, Ferroni A, Sermet-Gaudelus I, Nassif X, Charbit A, Jamet A.
    Clin Infect Dis. 2019 Feb 7. doi: 10.1093/cid/ciz106.
    PMID: 30753350
  • Fulminant arterial vasculitis as an unusual complication of disseminated staphylococcal disease due to the merging CC1 methicillin-susceptible Staphylococcus aureus clone: a case report.
    Vidal C, Moulin F, Nassif X, Galmiche L, Borgel D, Charbit A, Picard C, Mira J.P, Lortholary O, Jamet A, Toubiana J.
    BMC Infect. Dis. March 2019. doi: 10.1186/s12879-019-3933-3
  • Critical role of a sheath phosphorylation site on the assembly and function of an atypical type VI secretion system.
    Ziveri J, Chhuon C, Jamet A, Rytter H, Prigent G, Fabiola Tros F, Barel M, Coureuil M, Lays C, Henry T, Keep Nh, Guerrera C, Charbit A.
    Mol. Cell. Proteomics. Oct 2. pii: mcp.RA119.001532. doi: 10.1074/mcp.RA119.001532.
  • Pivotal role of mitochondria in macrophages in response to intracellular bacterial pathogens.
    Ramond E, Jamet A, Coureuil M, Charbit A.
    Front Immunol. 2019 Oct 23;10:2461. doi: 10.3389/fimmu.2019.02461.
  • Airway Mucus Restricts Neisseria meningitidis Away from Nasopharyngeal Epithelial Cells and Protects the Mucosa from Inflammation.
    Audry M, Robbe-Masselot C, Barnier JP, Gachet B, Saubaméa B, Schmitt A, Schönherr-Hellec S, Léonard R, Nassif X, Coureuil M.
    mSphere. 2019 Dec 4;4(6). pii: e00494-19. doi: 10.1128/mSphere.00494-19.
  • Strategies used by bacterial pathogens to cross the blood-brain barrier.
    Le Guennec L, Coureuil M, Nassif X, Bourdoulous S.
    Cell Microbiol. 2020 Jan;22(1):e13132. doi: 10.1111/cmi.13132. Epub 2019 Nov 10.
  • Genetic effects on the commensal microbiota in inflammatory bowel disease patients.
    Aschard H, Laville V, Tchetgen ET, Knights D, Imhann F, Seksik P, Zaitlen N, Silverberg MS, Cosnes J, Weersma RK, Xavier R, Beaugerie L, Skurnik D, Sokol H.
    PLoS Genet. 2019 Mar 8;15(3):e1008018. doi: 10.1371/journal.pgen.1008018.
  • 2018

  • Antibacterial Toxins: Gram-Positive Bacteria Strike Back!
    Jamet A, Charbit A, Nassif X.
    Trends Microbiol. 2018 Feb;26(2):89-91. doi: 10.1016/j.tim.2017.11.003. Epub 2017 Nov 21.
    PMID: 29174101
  • An ADAM-10 dependent EPCR shedding links meningococcal interaction with endothelial cells to purpura fulminans.
    Lécuyer H, Virion Z, Barnier JP, Matczak S, Bourdoulous S, Bianchini E, Saller F, Borgel D, Nassif X, Coureuil M.
    PLoS Pathog. 2018 Apr 9;14(4):e1006981. doi: 10.1371/journal.ppat.1006981. eCollection 2018 Apr.
    PMID: 29630665
  • Recent actuality about Bacillus cereus and human milk bank: a new sensitive method for microbiological analysis of pasteurized milk.
    Rigourd V, Barnier JP, Ferroni A, Nicloux M, Hachem T, Magny JF, Lapillonne A, Frange P, Nassif X, Bille E.
    Eur J Clin Microbiol Infect Dis. 2018 Jul;37(7):1297-1303. doi: 10.1007/s10096-018-3249-z. Epub 2018 May 3.
    PMID: 29725957 (Free PMC Article)
  • A splenic IgM memory subset with antibacterial specificities is sustained from persistent mucosal responses.
    Le Gallou S, Zhou Z, Thai LH, Fritzen R, de Los Aires AV, Mégret J, Yu P, Kitamura D, Bille E, Tros F, Nassif X, Charbit A, Weller S, Weill JC, Reynaud CA.
    J Exp Med. 2018 Aug 6;215(8):2035-2053. doi: 10.1084/jem.20180977. Epub 2018 Jun 29.
    PMID: 29959173 (Free PMC Article)
  • Genetic effects on the commensal microbiota in inflammatory bowel disease patients.
    Aschard H, Laville V, Tchetgen ET, Knights D, Imhann F, Seksik P, Zaitlen N, Silverberg MS, Cosnes J, Weersma RK, Xavier R, Beaugerie L, Skurnik D*, Sokol H*.
    * Equally contributed to this work
    PLoS Genet. 2019 Mar 8;15(3):e1008018. doi: 10.1371
    PMID: 30849075
  • The absence of N-acetylglucosamine in wall teichoic acids of Listeria monocytogenes modifies biofilm architecture and tolerance to rinsing and cleaning procedures.
    Brauge T, Faille C, Sadovskaya I, Charbit A, Benezech T, Shen Y, Loessner Mj, Bautista Jr, Midelet-Bourdin G.
    PLoS One. 13(1):e0190879. doi:10.1371/journal.pone.0190879.
  • 2017

  • MAÏSSA N, COVARELLI V, JANEL S, DUREL B, SIMPSON N, BERNARD SC, PARDO-LOPEZ L, BOUZINBA-SEGARD H, FAURE C, SCOTT MGH, COUREUIL M, MORAND PC, LAFONT F, NASSIF X, MARULLO S, BOURDOULOUS S. Strength of Neisseria meningitidis binding to endothelial cells requires highly-ordered CD147/β2-adrenoceptor clusters assembled by alpha-actinin-4. Nat Commun. 8:15764.
  • GUET-REVILLET H, TOMINI E, EMIRIAN A, JOIN-LAMBERT O, LECUYER H, ZAHAR JR, JULLIEN V. Piperacillin/tazobactam as an alternative antibiotic therapy to carbapenems in the treatment of urinary tract infections due to extended-spectrum β-lactamase-producing Enterobacteriaceae: an in silico pharmacokinetic study. Int J Antimicrob Agents. 49(1):62-66.
  • PARIZE P, MUTH E, RICHAUD C, GRATIGNY M, PILMIS B, LAMAMY A, MAINARDI JL, CHEVAL J, DE VISSER L, JAGOREL F, BEN YAHIA L, BAMBA G, DUBOIS M, JOIN-LAMBERT O, LERUEZ-VILLE M, NASSIF X, LEFORT A, LANTERNIER F, SUAREZ F, LORTHOLARY O, LECUIT  M, ELOIT M. Untargeted next-generation sequencing-based first-line diagnosis of infection in immuno-compromised adults: a multicentre, blinded, prospective study. Clin Microbiol Infect. pii: S1198-743X(17)30094-0.
  • CHARLIER C, PERRODEAU E, LECLERCQ A, CAZENAVE B, PILMIS B, HENRY B, LOPES A, MAURY MM, MOURA A, GOFFINET F, DIEYE HB, THOUVENOT P, UNGEHEUER MN, TOURDJMAN M,  GOULET V, DE VALK H, LORTHOLARY O, RAVAUD P, LECUIT M; MONALISA study group. Clinical features and prognostic factors of listeriosis: the MONALISA national prospective cohort study. Lancet Infect Dis. pii: S1473-3099(16)30521-7.
  • LECUYER H, BORGEL D, NASSIF X, COUREUIL M. Pathogenesis of meningococcal purpura fulminans. Pathog Dis. 1;75(3).
  • GUET-REVILLET H, JAIS JP, UNGEHEUER MN, COIGNARD-BIEHLER H, DUCHATELET S, DELAGE M, LAM T, HOVNANIAN A, LORTHOLARY O, NASSIF X, NASSIF A, JOIN-LAMBERT O. The microbiological landscape of anaerobic infections in Hidradenitis Suppurativa: a prospective metagenomic study. Clin Infect Dis. doi:10.1093/cid/cix285.
  • BILLE E, MEYER J, JAMET A, EUPHRASIE D, BARNIER JP, BRISSAC T, LARSEN A, PELISSIER P, NASSIF X. A virulence-associated filamentous bacteriophage of Neisseria meningitidis increases host-cell colonisation. PLoS Pathogens. 13(7): e1006495. 
  • JAMET A, TOUCHON M, RIBEIRO-GONÇALVES B, CARRIÇO J, CHARBIT A, NASSIF X, RAMIREZ M, ROCHA E. A widespread family of polymorphic toxins carried by temperate phages. BMC Biology. Aug 29;15(1):75. 
  • ROLLIN G, TAN X, TROS F, DUPUIS M, Nassif X, CHARBIT A, COUREUIL M. Intracellular survival of Staphylococcus aureus in endothelial cells: a matter of growth or persistence. Front. Microbiol. 8 :1354.
  • GHENASSI A, GROSS DA, LORAIN S, TROS F, URBAIN D, BENKHELIFA-ZIYYAT S, CHARBIT A, DAVOUST J, CHAPPERT P. Intradermal immunization with rAAV1 vector induces robust memory CD8+ T cellresponses independently of transgene expression in dendritic cells. Mol Ther. Jul 15. pii: S1525-0016(17)30282-4.
  • ZIVERI J, TROS F, GUERRERA IC, CHHUON C, AUDRY M, DUPUIS M, BAREL M, KORNIOTIS S, FILLATREAU S, GALES L, CAHOREAU E, CHARBIT A. Fructose-1,6-bisphosphate aldolase, a ubiquitous metabolic enzyme with regulatory functions in pathogenic Francisella. Nat Commun. 8(1):853.
  • ROUX D, WEATHERHOLT M, CLARK B, GADJEVA M, RENAUD D, SCOTT D, SKURNIK D, PRIEBE G, PIER GB, GERARD C AND YODER-HIMES D. Immune Recognition of the Epidemic Cystic Fibrosis Pathogen Burkholderia dolosa. 85(6). pii: e00765-16
  • ASCHARD H, GUILLEMOT V, VILHJALMSSON B, PATEL C, SKURNIK D, YE J, WOLPIN B, KRAFT P, ZAITLEN N.  Covariate Selection for Association Screening in Multi-Phenotype Genetic studies. Nat Genet. 49(12):1789-1795.
  • 2016

  • KOLAPPAN S, COUREUIL M, YU X, NASSIF X, EGELMAN EH, CRAIG L. Structure of the  Neisseria meningitidis Type IV pilus. Nat Commun. 4;7:13015.
  • TOUBIANA J, TIMSIT S, FERRONI A, GRASSEAU M, NASSIF X, LORTHOLARY O, ZAHAR JR, CHALUMEAU M. Community-Onset Extended-Spectrum β-Lactamase-Producing Enterobacteriaceae Invasive Infections in Children in a University Hospital in France. Medicine (Baltimore). 95(12):e3163.
  • CAPEL E, ZOMER AL, NUSSBAUMER T, BOLE C, IZAC B, FRAPY E, MEYER J, BOUZINBA-SEGARD H, BILLE E, JAMET A, CAVAU A, LETOURNEUR F, BOURDOULOUS S, RATTEI T, NASSIF X, COUREUIL M. Comprehensive Identification of Meningococcal Genes and  Small Noncoding RNAs Required for Host Cell Colonization. MBio. 2;7(4).
  • BERGOUNIOUX J, COUREUIL M, BELLI E, LY M, CAMBILLAU M, GOUDIN N, NASSIF X, JOIN-LAMBERT O. Experimental Evidence of Bacterial Colonization of Human Coronary Microvasculature and Myocardial Tissue during Meningococcemia. Infect Immun. 84(10):3017-23.
  • MEYER J, BRISSAC T, FRAPY E, OMER H, EUPHRASIE D, BONAVITA A, NASSIF X, BILLE  E. Characterization of MDAΦ, a temperate filamentous bacteriophage of Neisseria meningitidis. Microbiology. 162(2):268-82.
  • BAREL M, HARDUIN-LEPERS  A, PORTIER L, SLOMIANNY MC, CHARBIT A. Host glycosylation pathways and the unfolded protein response, new players in the infection by Francisella. Cell Microbiol. 18(12):1763-1781. 
  • RIGARD M, BRÖMS JE,  MOSNIER A, MARTIN A, PUNGINELLI C, CHARBIT A, TELOUK P, WAYNE C, TERRADOT L, SJÖSTEDT A, HENRY T. Francisella tularensis IglG belongs to a novel family of PAAR-like T6SS proteins and harbors a unique N-terminal extension required for virulence. PLoS Pathogens 12(9):e1005821.
  • ROUX D, PONS S, GUILLARD T, RICARD JD, PIER GB, SKURNIK D. Impact of drug resistance on virulence and fitness of bacterial pathogens. Crit Care Med. 44(1):e50-1.
  • SKURNIK D, ROUX D, PONS S, GUILLARD T, LU X, CYWES-BENTLEY C, PIER GB. Extended spectrum antibodies protective against carbapenemase producing Enterobacteriaceae. J Antimicrob Chemother. 71(4):927-35.
  • SOKOL H, LEDUCQ V, ASCHARD H, JEGOU S, LANDMAN C, GIUSEPPINA L, COSNES J, SEKSIK P, LANGELLA P, SKURNIK D, RICHARD ML, BEAUGERIE L. Fungal Microbiota Dysbiosis in Inflammatory Bowel Disease. Gut. pii: gutjnl-2015-310746.
  • SKURNIK D, CYWES-BENTLEY C, PIER GB. The exceptionally broad-based potential of active and passive vaccination targeting the conserved microbial surface polysaccharide PNAG. Expert Rev Vaccines. 15(8):1041-53.
  • GUILLARD T, PONS S, ROUX D, PIER GB, SKURNIK D. Antibiotic resistance and virulence: Understanding the link and its consequences for prophylaxis and therapy. Bioessays. 38(7):682-93.
  • 2015

  • JAMET A, NASSIF X. Characterization of the Maf family of polymorphic toxins in pathogenic Neisseria species. Microb Cell. 2(3):88-90.
  • ZAHAR JR, POIREL L, DUPONT C, FORTINEAU N, NASSIF X, NORDMANN P. About the usefulness of contact precautions for carriers of extended-spectrum beta-lactamase-producing Escherichia coli. BMC Infect Dis. 12;15:512.
  • JOIN-LAMBERT O, DUCHATELET S, DELAGE M, MISKINYTE S, COIGNARD H, LEMARCHAND N, ALEMY-CARREAU M, LORTHOLARY O, NASSIF X, HOVNANIAN A, NASSIF A. Remission of refractory pyoderma gangrenosum, severe acne, and hidradenitis suppurativa (PASH) syndrome using targeted antibiotic therapy in 4 patients. J Am Acad Dermatol. 73(5 Suppl 1):S66-9.
  • DELAGE M, GUET-REVILLET H, DUCHATELET S, HOVNANIAN A, NASSIF X, NASSIF A, JOIN-LAMBERT O. Deciphering the microbiology of hidradenitis suppurativa: a step  forward towards understanding an enigmatic inflammatory skin disease. Exp Dermatol. 24(10):736-7.
  • JAMET A, JOUSSET AB, EUPHRASIE D, MUKORAKO P, BOUCHARLAT A, DUCOUSSO A, CHARBIT A, NASSIF X. A new family of secreted toxins in pathogenic Neisseria species. PLoS Pathog. 11(1):e1004592.
  • Gesbert G, Ramond E, TROS F, DAIROU J, Frapy E, Barel M, Charbit A. Importance of branched-chain amino acid utilization in Francisella intracellular adaptation. Infect. Immun. 83 (1): 173-183.
  • RAMOND E, GESBERT G, GUERRERA IC, CHHUON C, DUPUIS M, RIGARD M, HENRY T, BAREL M, CHARBIT A. Importance of host cell arginine uptake in Francisella phagosomal escape and ribosomal protein amounts. Mol Cell Proteomics. (4):870-81. 
  • RENIER S, CHAFSEY I, CHAMBON C, CHARBIT A,  HÉBRAUD M, DESVAUX M. Contribution of the multiple Type I signal peptidases to the secretome of Listeria monocytogenes: Deciphering protein substrate specificity by exoproteomic analysis. J. Proteomics. pii: S1874-3919(15)00015-9. 
  • BRISSAC T, ZIVERI J, RAMOND E, TROS F, KOCK S, DUPUIS M, BRILLET M, BAREL M, PEYRIGA L, CAHOREAU E, CHARBIT A. Gluconeogenesis, an essential metabolic pathway for pathogenic Francisella. Mol Microbiol. 98 (3) : 403–604.
  • ROUX D, CYWES-BENTLEY C, ZHANG YI-FAN, PONS S, KEARNS D, LITTLE DJ, HOWELL PL, PIER GB* AND SKURNIK D*. Identification of poly-N-acetylglucosamine as a major polysaccharide component of the Bacillus subtilis biofilm matrix. J Biol Chem. 290(31):19261-72. * Equally contributed to this work
  • ROUX D*, DANILCHANKA O*, GUILLARD T, CATTOIR V, ASCHARD H, FU Y, ANGOULVANT F, MESSIKA J, RICARD J-D, MEKALANOS J, LORY S, PIER GB AND SKURNIK D. Fitness cost of antibiotic susceptibility during infection. Sci Transl Med. 7(297):297ra114. * Equally contributed to this work.
  • Permanent researcher
    Jean Bergounioux
    Professor Researcher
    +33 (0)1 72 60 65 15
    Emmanuelle Bille
    +33 (0)1
    Alain Charbit
    +33 (0)1 40 61 54 06
    Mathieu Coureuil
    +33 (0)1
    Anne Jamet
    +33 (0)1 72 60 65 06
    Hervé Lécuyer
    Professor Researcher
    Xavier Nassif
    Professor Researcher
    +33 (0)1 40 61 54 05
    David Skurnik
    Professor Researcher
    +33(0)1 72 60 65 15
    Non permanent researcher
    Jean-Philippe Barnier
    +33 (0)1
    Permanent engineer
    Ravaonirina Dubail
    Marion Dupuis
    +33 (0)1 72 60 65 06
    Daniel Euphrasie
    +33 (0)1 40 61 54 10
    Eric Frapy
    +33 (0)1 40 61 54 84
    Julie Meyer
    Assistant in Biological Techniques
    +33 (0)1 72 60 65 14
    Post-doctoral degree
    Elodie Ramond
    Post-Doctoral Researcher
    +33 (0)1
    Sophia SchÖnherr-Hellec
    Post-Doctoral Researcher
    Xiongqi Ding
    PhD Student
    Eloise Rytter
    PhD Student
    Margaux Allain
    Graduate student
    Clémence Bouvier
    Graduate student
    Marta Conflitti
    Graduate student
    Cécile Schrimpf
    Graduate student
    Louis Vasselin
    Graduate student

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    HRH Princess Caroline of Hanover, who through the Princess Grace Foundation, already supports medical research and anything that helps to relieve the sick children in France and around the world, has agreed to commit to our side so that our Center of Molecular medicine continues to meet the current challenges and fight diseases, and in particular the ones affecting children.

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