Publications
2002
Naitza Silvia, Rossé Carine, Kappler Christine, Georgel Philippe, Belvin Marcia, Gubb David, Camonis Jacques, Hoffmann Jules A, Reichhart Jean-Marc
The Drosophila immune defense against gram-negative infection requires the death protein dFADD Article de journal
Dans: Immunity, vol. 17, no. 5, p. 575–581, 2002, ISSN: 1074-7613.
Résumé | BibTeX | Étiquettes: Adaptor Proteins, Animals, Carrier Proteins, Fas-Associated Death Domain Protein, Gene Expression Regulation, Gram-Negative Bacterial Infections, hoffmann, Immunity, M3i, reichhart, Signal Transducing, Signal Transduction
@article{naitza_drosophila_2002,
title = {The Drosophila immune defense against gram-negative infection requires the death protein dFADD},
author = {Silvia Naitza and Carine Rossé and Christine Kappler and Philippe Georgel and Marcia Belvin and David Gubb and Jacques Camonis and Jules A Hoffmann and Jean-Marc Reichhart},
issn = {1074-7613},
year = {2002},
date = {2002-11-01},
journal = {Immunity},
volume = {17},
number = {5},
pages = {575--581},
abstract = {Drosophila responds to Gram-negative infections by mounting an immune response that depends on components of the IMD pathway. We recently showed that imd encodes a protein with a death domain with high similarity to that of mammalian RIP. Using a two-hybrid screen in yeast, we have isolated the death protein dFADD as a molecule that associates with IMD. Our data show that loss of dFADD function renders flies highly susceptible to Gram-negative infections without affecting resistance to Gram-positive bacteria. By genetic analysis we show that dFADD acts downstream of IMD in the pathway that controls inducibility of the antibacterial peptide genes.},
keywords = {Adaptor Proteins, Animals, Carrier Proteins, Fas-Associated Death Domain Protein, Gene Expression Regulation, Gram-Negative Bacterial Infections, hoffmann, Immunity, M3i, reichhart, Signal Transducing, Signal Transduction},
pubstate = {published},
tppubtype = {article}
}
Christophides George K, Zdobnov Evgeny, Barillas-Mury Carolina, Birney Ewan, Blandin Stephanie A, Blass Claudia, Brey Paul T, Collins Frank H, Danielli Alberto, Dimopoulos George, Hetru Charles, Hoa Ngo T, Hoffmann Jules A, Kanzok Stefan M, Letunic Ivica, Levashina Elena A, Loukeris Thanasis G, Lycett Gareth, Meister Stephan, Michel Kristin, Moita Luis F, Müller Hans-Michael, Osta Mike A, Paskewitz Susan M, Reichhart Jean-Marc, Rzhetsky Andrey, Troxler Laurent, Vernick Kenneth D, Vlachou Dina, Volz Jennifer, von Mering Christian, Xu Jiannong, Zheng Liangbiao, Bork Peer, Kafatos Fotis C
Immunity-related genes and gene families in Anopheles gambiae Article de journal
Dans: Science, vol. 298, no. 5591, p. 159–165, 2002, ISSN: 1095-9203.
Résumé | Liens | BibTeX | Étiquettes: Alternative Splicing, Animals, Anopheles, Apoptosis, bacteria, bioinformatic, blandin, Catechol Oxidase, Computational Biology, Enzyme Precursors, Gene Expression Regulation, Genes, Genetic, Genome, hoffmann, Immunity, Innate, Insect, Insect Proteins, M3i, Multigene Family, Peptides, Phylogeny, Plasmodium, Protein Structure, reichhart, Selection, Serine Endopeptidases, Serpins, Signal Transduction, Tertiary
@article{christophides_immunity-related_2002,
title = {Immunity-related genes and gene families in Anopheles gambiae},
author = {George K Christophides and Evgeny Zdobnov and Carolina Barillas-Mury and Ewan Birney and Stephanie A Blandin and Claudia Blass and Paul T Brey and Frank H Collins and Alberto Danielli and George Dimopoulos and Charles Hetru and Ngo T Hoa and Jules A Hoffmann and Stefan M Kanzok and Ivica Letunic and Elena A Levashina and Thanasis G Loukeris and Gareth Lycett and Stephan Meister and Kristin Michel and Luis F Moita and Hans-Michael Müller and Mike A Osta and Susan M Paskewitz and Jean-Marc Reichhart and Andrey Rzhetsky and Laurent Troxler and Kenneth D Vernick and Dina Vlachou and Jennifer Volz and Christian von Mering and Jiannong Xu and Liangbiao Zheng and Peer Bork and Fotis C Kafatos},
url = {http://www.ncbi.nlm.nih.gov/pubmed/12364793},
doi = {10.1126/science.1077136},
issn = {1095-9203},
year = {2002},
date = {2002-10-01},
journal = {Science},
volume = {298},
number = {5591},
pages = {159--165},
abstract = {We have identified 242 Anopheles gambiae genes from 18 gene families implicated in innate immunity and have detected marked diversification relative to Drosophila melanogaster. Immune-related gene families involved in recognition, signal modulation, and effector systems show a marked deficit of orthologs and excessive gene expansions, possibly reflecting selection pressures from different pathogens encountered in these insects' very different life-styles. In contrast, the multifunctional Toll signal transduction pathway is substantially conserved, presumably because of counterselection for developmental stability. Representative expression profiles confirm that sequence diversification is accompanied by specific responses to different immune challenges. Alternative RNA splicing may also contribute to expansion of the immune repertoire.},
keywords = {Alternative Splicing, Animals, Anopheles, Apoptosis, bacteria, bioinformatic, blandin, Catechol Oxidase, Computational Biology, Enzyme Precursors, Gene Expression Regulation, Genes, Genetic, Genome, hoffmann, Immunity, Innate, Insect, Insect Proteins, M3i, Multigene Family, Peptides, Phylogeny, Plasmodium, Protein Structure, reichhart, Selection, Serine Endopeptidases, Serpins, Signal Transduction, Tertiary},
pubstate = {published},
tppubtype = {article}
}
Hoffmann Jules A, Reichhart Jean-Marc
Drosophila innate immunity: an evolutionary perspective Article de journal
Dans: Nat. Immunol., vol. 3, no. 2, p. 121–126, 2002, ISSN: 1529-2908.
Résumé | Liens | BibTeX | Étiquettes: Animals, Biological Evolution, Cell Surface, hoffmann, Immunity, Immunological, Innate, M3i, Membrane Glycoproteins, Models, Receptors, reichhart, Signal Transduction, Toll-Like Receptors
@article{hoffmann_drosophila_2002,
title = {Drosophila innate immunity: an evolutionary perspective},
author = {Jules A Hoffmann and Jean-Marc Reichhart},
doi = {10.1038/ni0202-121},
issn = {1529-2908},
year = {2002},
date = {2002-02-01},
journal = {Nat. Immunol.},
volume = {3},
number = {2},
pages = {121--126},
abstract = {In response to microbial infections, Drosophila mounts a multifaceted immune response involving humoral reactions that culminate in the destruction of invading organisms by lytic peptides. These defense mechanisms are activated via two distinct signaling pathways. One of these, the Toll pathway, controls resistance to fungal and Gram-positive bacterial infections, whereas the Imd pathway is responsible for defense against Gram-negative bacterial infections. Current evidence indicates that recognition of infectious nonself agents results from interactions between microbial wall components and extracellular pattern recognition proteins. We discuss here evolutionary perspectives on our present understanding of the antimicrobial defenses of Drosophila.},
keywords = {Animals, Biological Evolution, Cell Surface, hoffmann, Immunity, Immunological, Innate, M3i, Membrane Glycoproteins, Models, Receptors, reichhart, Signal Transduction, Toll-Like Receptors},
pubstate = {published},
tppubtype = {article}
}
2001
Imler Jean-Luc, Hoffmann Jules A
Toll receptors in innate immunity Article de journal
Dans: Trends in Cell Biology, vol. 11, no. 7, p. 304–311, 2001, ISSN: 0962-8924.
Résumé | BibTeX | Étiquettes: Animals, Cell Surface, hoffmann, Humans, imler, Immunity, Immunologic, Innate, M3i, Membrane Glycoproteins, Membrane Proteins, Receptors, Toll-Like Receptors
@article{imler_toll_2001,
title = {Toll receptors in innate immunity},
author = {Jean-Luc Imler and Jules A Hoffmann},
issn = {0962-8924},
year = {2001},
date = {2001-01-01},
journal = {Trends in Cell Biology},
volume = {11},
number = {7},
pages = {304--311},
abstract = {Innate immunity is the first-line host defense of multicellular organisms that rapidly operates to limit infection upon exposure to infectious agents. In addition, the cells and molecules operating during this early stage of the immune response in vertebrates have a decisive impact on the shaping of the subsequent adaptive response. Genetic studies initially performed in the fruitfly Drosophila and later in mice have revealed the importance of proteins of the Toll family in the innate immune response. We present here our current understanding of the role of this evolutionary ancient family of proteins that are thought to function as cytokine receptors (Toll in Drosophila) or pattern-recognition receptors (TLRs in mammals) and activate similar, albeit non-identical, signal-transduction pathways in flies and mammals.},
keywords = {Animals, Cell Surface, hoffmann, Humans, imler, Immunity, Immunologic, Innate, M3i, Membrane Glycoproteins, Membrane Proteins, Receptors, Toll-Like Receptors},
pubstate = {published},
tppubtype = {article}
}
2000
Rutschmann Sophie, Jung Alain C, Zhou R, Silverman N, Hoffmann Jules A, Ferrandon Dominique
Role of Drosophila IKK gamma in a toll-independent antibacterial immune response Article de journal
Dans: Nat. Immunol., vol. 1, no. 4, p. 342–347, 2000, ISSN: 1529-2908.
Résumé | Liens | BibTeX | Étiquettes: Animals, Antigens, Bacterial, Cell Surface, ferrandon, Gene Expression Regulation, hoffmann, I-kappa B Kinase, Immunity, Innate, Insect Proteins, M3i, Membrane Glycoproteins, Protein-Serine-Threonine Kinases, Receptors, Signal Transduction, Toll-Like Receptors, Transcription Factors
@article{rutschmann_role_2000,
title = {Role of Drosophila IKK gamma in a toll-independent antibacterial immune response},
author = {Sophie Rutschmann and Alain C Jung and R Zhou and N Silverman and Jules A Hoffmann and Dominique Ferrandon},
doi = {10.1038/79801},
issn = {1529-2908},
year = {2000},
date = {2000-10-01},
journal = {Nat. Immunol.},
volume = {1},
number = {4},
pages = {342--347},
abstract = {We have generated, by ethylmethane sulfonate mutagenesis, loss-of-function mutants in the Drosophila homolog of the mammalian I-kappa B kinase (IKK) complex component IKK gamma (also called NEMO). Our data show that Drosophila IKK gamma is required for the Relish-dependent immune induction of the genes encoding antibacterial peptides and for resistance to infections by Escherichia coli. However, it is not required for the Toll-DIF-dependent antifungal host defense. The results indicate distinct control mechanisms of the Rel-like transactivators DIF and Relish in the Drosophila innate immune response and show that Drosophila Toll does not signal through a IKK gamma-dependent signaling complex. Thus, in contrast to the vertebrate inflammatory response, IKK gamma is required for the activation of only one immune signaling pathway in Drosophila.},
keywords = {Animals, Antigens, Bacterial, Cell Surface, ferrandon, Gene Expression Regulation, hoffmann, I-kappa B Kinase, Immunity, Innate, Insect Proteins, M3i, Membrane Glycoproteins, Protein-Serine-Threonine Kinases, Receptors, Signal Transduction, Toll-Like Receptors, Transcription Factors},
pubstate = {published},
tppubtype = {article}
}
Rutschmann Sophie, Jung Alain C, Hetru Charles, Reichhart Jean-Marc, Hoffmann Jules A, Ferrandon Dominique
The Rel protein DIF mediates the antifungal but not the antibacterial host defense in Drosophila Article de journal
Dans: Immunity, vol. 12, no. 5, p. 569–580, 2000, ISSN: 1074-7613.
Résumé | BibTeX | Étiquettes: Animals, Antigens, Bacterial, DNA-Binding Proteins, ferrandon, Fungal, hoffmann, Immunity, Innate, M3i, reichhart, Transcription Factors
@article{rutschmann_rel_2000,
title = {The Rel protein DIF mediates the antifungal but not the antibacterial host defense in Drosophila},
author = {Sophie Rutschmann and Alain C Jung and Charles Hetru and Jean-Marc Reichhart and Jules A Hoffmann and Dominique Ferrandon},
issn = {1074-7613},
year = {2000},
date = {2000-05-01},
journal = {Immunity},
volume = {12},
number = {5},
pages = {569--580},
abstract = {We have isolated two Drosophila lines that carry point mutations in the gene coding for the NF-KB-like factor DIF. Like mutants of the Toll pathway, Dif mutant flies are susceptible to fungal but not to bacterial infections. Genetic epistasis experiments demonstrate that Dif mediates the Toll-dependent control of the inducibility of the antifungal peptide gene Drosomycin. Strikingly, DIF alone is required for the antifungal response in adults, but is redundant in larvae with Dorsal, another Rel family member. In Drosophila, Dif appears to be dedicated to the antifungal defense elicited by fungi and gram-positive bacteria. We discuss in this light the possibility that NF-KB1/p50 might be required more specifically in the innate immune response against gram-positive bacteria in mammals.},
keywords = {Animals, Antigens, Bacterial, DNA-Binding Proteins, ferrandon, Fungal, hoffmann, Immunity, Innate, M3i, reichhart, Transcription Factors},
pubstate = {published},
tppubtype = {article}
}
Imler Jean-Luc, Hoffmann Jules A
Toll and Toll-like proteins: an ancient family of receptors signaling infection Article de journal
Dans: Reviews in Immunogenetics, vol. 2, no. 3, p. 294–304, 2000, ISSN: 1398-1714.
Résumé | BibTeX | Étiquettes: Adaptor Proteins, Animals, Antigens, Autoantigens, CD14, Cell Adhesion Molecules, Cell Surface, Differentiation, DNA-Binding Proteins, Gene Expression Regulation, hoffmann, I-kappa B Proteins, imler, Immunity, Immunologic, infection, Innate, Insect Proteins, Interleukin-1 Receptor-Associated Kinases, Knockout, Larva, Lipopolysaccharides, M3i, Mammals, MAP Kinase Signaling System, Membrane Glycoproteins, Membrane Proteins, Mice, Multigene Family, Myeloid Differentiation Factor 88, NF-kappa B, peptidoglycan, Phosphorylation, Post-Translational, Protein Kinases, Protein Processing, Protein Structure, Receptors, Recombinant Fusion Proteins, Signal Transducing, Signal Transduction, Teichoic Acids, Tertiary, Toll-Like Receptor 4, Toll-Like Receptor 5, Toll-Like Receptor 6, Toll-Like Receptor 9, Toll-Like Receptors, Ubiquitins
@article{imler_toll_2000,
title = {Toll and Toll-like proteins: an ancient family of receptors signaling infection},
author = {Jean-Luc Imler and Jules A Hoffmann},
issn = {1398-1714},
year = {2000},
date = {2000-01-01},
journal = {Reviews in Immunogenetics},
volume = {2},
number = {3},
pages = {294--304},
abstract = {Innate immunity is the first-line host defense of multicellular organisms that rapidly operates to limit infection upon exposure to microbes. It involves intracellular signaling pathways in the fruit-fly Drosophila and in mammals that show striking similarities. Recent genetic and biochemical data have revealed, in particular, that proteins of the Toll family play a critical role in the immediate response to infection. We review here the recent developments on the structural and functional characterization of this evolutionary ancient and important family of proteins, which can function as cytokine receptors (Toll in Drosophila) or pattern recognition receptors (TLR4 in mammals) and activate similar, albeit non identical signal transduction pathways, in flies and mammals.},
keywords = {Adaptor Proteins, Animals, Antigens, Autoantigens, CD14, Cell Adhesion Molecules, Cell Surface, Differentiation, DNA-Binding Proteins, Gene Expression Regulation, hoffmann, I-kappa B Proteins, imler, Immunity, Immunologic, infection, Innate, Insect Proteins, Interleukin-1 Receptor-Associated Kinases, Knockout, Larva, Lipopolysaccharides, M3i, Mammals, MAP Kinase Signaling System, Membrane Glycoproteins, Membrane Proteins, Mice, Multigene Family, Myeloid Differentiation Factor 88, NF-kappa B, peptidoglycan, Phosphorylation, Post-Translational, Protein Kinases, Protein Processing, Protein Structure, Receptors, Recombinant Fusion Proteins, Signal Transducing, Signal Transduction, Teichoic Acids, Tertiary, Toll-Like Receptor 4, Toll-Like Receptor 5, Toll-Like Receptor 6, Toll-Like Receptor 9, Toll-Like Receptors, Ubiquitins},
pubstate = {published},
tppubtype = {article}
}
1999
Hoffmann Jules A, Kafatos Fotis C, Janeway Charles A, Ezekowitz Alan R B
Phylogenetic perspectives in innate immunity Article de journal
Dans: Science, vol. 284, no. 5418, p. 1313–1318, 1999, ISSN: 0036-8075.
Résumé | BibTeX | Étiquettes: Active, Animals, Culicidae, hoffmann, Humans, Immunity, Immunological, infection, Innate, Insect Vectors, M3i, Mammals, Models, Phagocytosis, Phylogeny, Proteins
@article{hoffmann_phylogenetic_1999,
title = {Phylogenetic perspectives in innate immunity},
author = {Jules A Hoffmann and Fotis C Kafatos and Charles A Janeway and Alan R B Ezekowitz},
issn = {0036-8075},
year = {1999},
date = {1999-05-01},
journal = {Science},
volume = {284},
number = {5418},
pages = {1313--1318},
abstract = {The concept of innate immunity refers to the first-line host defense that serves to limit infection in the early hours after exposure to microorganisms. Recent data have highlighted similarities between pathogen recognition, signaling pathways, and effector mechanisms of innate immunity in Drosophila and mammals, pointing to a common ancestry of these defenses. In addition to its role in the early phase of defense, innate immunity in mammals appears to play a key role in stimulating the subsequent, clonal response of adaptive immunity.},
keywords = {Active, Animals, Culicidae, hoffmann, Humans, Immunity, Immunological, infection, Innate, Insect Vectors, M3i, Mammals, Models, Phagocytosis, Phylogeny, Proteins},
pubstate = {published},
tppubtype = {article}
}
1998
Uttenweiler-Joseph S, Moniatte M, Lagueux Marie, Dorsselaer Van A, Hoffmann Jules A, Bulet Philippe
Differential display of peptides induced during the immune response of Drosophila: a matrix-assisted laser desorption ionization time-of-flight mass spectrometry study Article de journal
Dans: Proc. Natl. Acad. Sci. U.S.A., vol. 95, no. 19, p. 11342–11347, 1998, ISSN: 0027-8424.
Résumé | BibTeX | Étiquettes: Animals, bacteria, Chromatography, Cloning, Hemolymph, High Pressure Liquid, hoffmann, Immunity, Insect Proteins, M3i, Mass, Matrix-Assisted Laser Desorption-Ionization, messenger, Molecular, Peptides, Protein Precursors, RNA, Sequence Analysis, Spectrometry, Time Factors
@article{uttenweiler-joseph_differential_1998,
title = {Differential display of peptides induced during the immune response of Drosophila: a matrix-assisted laser desorption ionization time-of-flight mass spectrometry study},
author = {S Uttenweiler-Joseph and M Moniatte and Marie Lagueux and Van A Dorsselaer and Jules A Hoffmann and Philippe Bulet},
issn = {0027-8424},
year = {1998},
date = {1998-09-01},
journal = {Proc. Natl. Acad. Sci. U.S.A.},
volume = {95},
number = {19},
pages = {11342--11347},
abstract = {We have developed an approach based on a differential mass spectrometric analysis to detect molecules induced during the immune response of Drosophila, regardless of their biological activities. For this, we have applied directly matrix-assisted laser desorption/ionization MS to hemolymph samples from individual flies before and after an immune challenge. This method provided precise information on the molecular masses of immune-induced molecules and allowed the detection, in the molecular range of 1.5-11 kDa, of 24 Drosophila immune-induced molecules (DIMs). These molecules are all peptides, and four correspond to already characterized antimicrobial peptides. We have further analyzed the induction of the various peptides by immune challenge in wild-type flies and in mutants with a compromised antimicrobial response. We also describe a methodology combining matrix-assisted laser desorption ionization time-of-flight MS, HPLC, and Edman degradation, which yielded the peptide sequence of three of the DIMs. Finally, molecular cloning and Northern blot analyses revealed that one of the DIMs is produced as a prepropeptide and is inducible on a bacterial challenge.},
keywords = {Animals, bacteria, Chromatography, Cloning, Hemolymph, High Pressure Liquid, hoffmann, Immunity, Insect Proteins, M3i, Mass, Matrix-Assisted Laser Desorption-Ionization, messenger, Molecular, Peptides, Protein Precursors, RNA, Sequence Analysis, Spectrometry, Time Factors},
pubstate = {published},
tppubtype = {article}
}
1997
Lemaitre Bruno, Reichhart Jean-Marc, Hoffmann Jules A
Drosophila host defense: differential induction of antimicrobial peptide genes after infection by various classes of microorganisms Article de journal
Dans: Proc. Natl. Acad. Sci. U.S.A., vol. 94, no. 26, p. 14614–14619, 1997, ISSN: 0027-8424.
Résumé | BibTeX | Étiquettes: Animals, Genes, hoffmann, Immunity, Insect, M3i, Peptides, reichhart
@article{lemaitre_drosophila_1997,
title = {Drosophila host defense: differential induction of antimicrobial peptide genes after infection by various classes of microorganisms},
author = {Bruno Lemaitre and Jean-Marc Reichhart and Jules A Hoffmann},
issn = {0027-8424},
year = {1997},
date = {1997-12-01},
journal = {Proc. Natl. Acad. Sci. U.S.A.},
volume = {94},
number = {26},
pages = {14614--14619},
abstract = {Insects respond to microbial infection by the rapid and transient expression of several genes encoding potent antimicrobial peptides. Herein we demonstrate that this antimicrobial response of Drosophila is not aspecific but can discriminate between various classes of microorganisms. We first observe that the genes encoding antibacterial and antifungal peptides are differentially expressed after injection of distinct microorganisms. More strikingly, Drosophila that are naturally infected by entomopathogenic fungi exhibit an adapted response by producing only peptides with antifungal activities. This response is mediated through the selective activation of the Toll pathway.},
keywords = {Animals, Genes, hoffmann, Immunity, Insect, M3i, Peptides, reichhart},
pubstate = {published},
tppubtype = {article}
}
Dimarcq Jean-Luc, Imler Jean-Luc, Lanot R, Ezekowitz Alan R B, Hoffmann Jules A, Janeway C A, Lagueux Marie
Treatment of l(2)mbn Drosophila tumorous blood cells with the steroid hormone ecdysone amplifies the inducibility of antimicrobial peptide gene expression Article de journal
Dans: Insect Biochemistry and Molecular Biology, vol. 27, no. 10, p. 877–886, 1997, ISSN: 0965-1748.
Résumé | BibTeX | Étiquettes: Animals, Bacterial Infections, Cellular, Ecdysone, Gene Expression, Genes, Hemocytes, Hemolymph, hoffmann, imler, Immunity, Insect, M3i, Macrophages, Peptide Biosynthesis, Phagocytosis
@article{dimarcq_treatment_1997,
title = {Treatment of l(2)mbn Drosophila tumorous blood cells with the steroid hormone ecdysone amplifies the inducibility of antimicrobial peptide gene expression},
author = {Jean-Luc Dimarcq and Jean-Luc Imler and R Lanot and Alan R B Ezekowitz and Jules A Hoffmann and C A Janeway and Marie Lagueux},
issn = {0965-1748},
year = {1997},
date = {1997-10-01},
journal = {Insect Biochemistry and Molecular Biology},
volume = {27},
number = {10},
pages = {877--886},
abstract = {Insects rely on both humoral and cellular mechanisms to defend themselves against microbial infections. The humoral response involves synthesis of a battery of potent antimicrobial peptides by the fat body and, to a lesser extent, by blood cells. The cellular response on the other hand consists of phagocytosis of small microorganisms and melanization and encapsulation of larger parasites. The l(2)mbn cell line, established from tumorous larval hemocytes, represents a system of choice to dissect the molecular events controlling cellular immunity. We report here that l(2)mbn cells can be efficiently induced to differentiate in adherent, macrophage-like cells by treatment with 20-hydroxyecdysone. Ecdysone treatment increases both the phagocytic capacity of l(2)mbn cells and their competence to express antimicrobial genes in response to immune challenge. We also report that expression of several regulatory molecules thought to be involved in the immune response is up-regulated by ecdysone in l(2)mbn cells.},
keywords = {Animals, Bacterial Infections, Cellular, Ecdysone, Gene Expression, Genes, Hemocytes, Hemolymph, hoffmann, imler, Immunity, Insect, M3i, Macrophages, Peptide Biosynthesis, Phagocytosis},
pubstate = {published},
tppubtype = {article}
}
1996
Hoffmann Jules A, Reichhart Jean-Marc, Hetru Charles
Innate immunity in higher insects Article de journal
Dans: Curr. Opin. Immunol., vol. 8, no. 1, p. 8–13, 1996, ISSN: 0952-7915.
Résumé | BibTeX | Étiquettes: Animals, Base Sequence, Cyclic, hoffmann, Immunity, Immunologic, Immunological, Innate, insects, M3i, Models, Peptide Hydrolases, Peptides, Receptors, reichhart
@article{hoffmann_innate_1996,
title = {Innate immunity in higher insects},
author = {Jules A Hoffmann and Jean-Marc Reichhart and Charles Hetru},
issn = {0952-7915},
year = {1996},
date = {1996-02-01},
journal = {Curr. Opin. Immunol.},
volume = {8},
number = {1},
pages = {8--13},
abstract = {The hallmark of the innate immune response of higher insects is the rapid and transient synthesis of a battery of broad spectrum antimicrobial peptides by the fat body. The control of the genes encoding these peptides involves cis-regulatory promoter elements homologous to sequences functional in mammalian acute-phase genes. Study of immune-deficient mutants of Drosophila has indicated that distinct pathways control the antibacterial and antifungal responses in this species. Novel receptors potentially involved in the initiation of the immune response have been recently characterized.},
keywords = {Animals, Base Sequence, Cyclic, hoffmann, Immunity, Immunologic, Immunological, Innate, insects, M3i, Models, Peptide Hydrolases, Peptides, Receptors, reichhart},
pubstate = {published},
tppubtype = {article}
}
1995
Lowenberger C, Bulet Philippe, Charlet Maurice, Hetru Charles, Hodgeman B, Christensen B M, Hoffmann Jules A
Insect immunity: isolation of three novel inducible antibacterial defensins from the vector mosquito, Aedes aegypti Article de journal
Dans: Insect Biochem. Mol. Biol., vol. 25, no. 7, p. 867–873, 1995, ISSN: 0965-1748.
Résumé | BibTeX | Étiquettes: Aedes, Amino Acid, Animals, Anti-Bacterial Agents, Blood Proteins, Defensins, Escherichia coli, Gram-Negative Bacteria, Gram-Positive Bacteria, hoffmann, Immunity, Insect Vectors, M3i, Micrococcus luteus, Sequence Homology, Stereoisomerism
@article{lowenberger_insect_1995,
title = {Insect immunity: isolation of three novel inducible antibacterial defensins from the vector mosquito, Aedes aegypti},
author = {C Lowenberger and Philippe Bulet and Maurice Charlet and Charles Hetru and B Hodgeman and B M Christensen and Jules A Hoffmann},
issn = {0965-1748},
year = {1995},
date = {1995-07-01},
journal = {Insect Biochem. Mol. Biol.},
volume = {25},
number = {7},
pages = {867--873},
abstract = {The injection of Escherichia coli and Micrococcus luteus into the hemocoel of Aedes aegypti induces a potent antibacterial activity in the hemolymph. We have purified and fully characterized three 40-residue antibacterial peptides from the hemolymph of bacteria-challenged mosquitoes that are absent in naive mosquitoes. The peptides are potently active against Gram-positive bacteria and against one of the Gram-negative bacteria that were tested. The amino acid sequences clearly show that the three peptides are novel isoforms of the insect defensin family of antibacterial peptides. They differ from each other by one or two amino acid residues. We present here the complete amino acid sequences of the three isoforms and the activity spectrum of the predominant Aedes defensin.},
keywords = {Aedes, Amino Acid, Animals, Anti-Bacterial Agents, Blood Proteins, Defensins, Escherichia coli, Gram-Negative Bacteria, Gram-Positive Bacteria, hoffmann, Immunity, Insect Vectors, M3i, Micrococcus luteus, Sequence Homology, Stereoisomerism},
pubstate = {published},
tppubtype = {article}
}
Georgel Philippe, Kappler Christine, Langley E, Gross I, Nicolas E, Reichhart Jean-Marc, Hoffmann Jules A
Drosophila immunity. A sequence homologous to mammalian interferon consensus response element enhances the activity of the diptericin promoter Article de journal
Dans: Nucleic Acids Res., vol. 23, no. 7, p. 1140–1145, 1995, ISSN: 0305-1048.
Résumé | BibTeX | Étiquettes: Animals, Base Sequence, CCAAT-Enhancer-Binding Proteins, DNA, DNA-Binding Proteins, Genes, Genetic, hoffmann, Immunity, Insect, Insect Hormones, Insect Proteins, interferons, Lipopolysaccharides, M3i, NF-kappa B, Nuclear Proteins, Plasmids, Promoter Regions, reichhart, Up-Regulation
@article{georgel_drosophila_1995,
title = {Drosophila immunity. A sequence homologous to mammalian interferon consensus response element enhances the activity of the diptericin promoter},
author = {Philippe Georgel and Christine Kappler and E Langley and I Gross and E Nicolas and Jean-Marc Reichhart and Jules A Hoffmann},
issn = {0305-1048},
year = {1995},
date = {1995-04-01},
journal = {Nucleic Acids Res.},
volume = {23},
number = {7},
pages = {1140--1145},
abstract = {Bacterial challenge of larvae or adults of Drosophila induces the rapid transcription of several genes encoding antibacterial peptides with a large spectrum of activity. One of these peptides, the 82-residue anti-gram negative diptericin, is encoded by a single intronless gene and we are investigating the control of expression of this gene. Previous studies using both transgenic experiments and footprint analysis have highlighted the role in the induction of this gene of a 30 nucleotide region which contains three partially overlapping motifs with sequence homology to mammalian NF-kappa B and NF-IL6 response elements and to the GAAANN sequence present in the interferon consensus response elements of some mammalian interferon-induced genes. We now show that the latter sequence binds in immune responsive tissues (fat body, blood cells) of Drosophila a approximately 45 kDa polypeptide which cross-reacts with a polyserum directed against mammalian interferon Regulatory Factor-I. Using a transfection assay of Drosophila tumorous blood cells, we show that the GAAANN sequence positively regulates the activity of the diptericin promoter. We propose that this motif cooperatively interacts with the other response elements in the regulation of the diptericin gene expression.},
keywords = {Animals, Base Sequence, CCAAT-Enhancer-Binding Proteins, DNA, DNA-Binding Proteins, Genes, Genetic, hoffmann, Immunity, Insect, Insect Hormones, Insect Proteins, interferons, Lipopolysaccharides, M3i, NF-kappa B, Nuclear Proteins, Plasmids, Promoter Regions, reichhart, Up-Regulation},
pubstate = {published},
tppubtype = {article}
}
Hoffmann Jules A
Innate immunity of insects Article de journal
Dans: Curr. Opin. Immunol., vol. 7, no. 1, p. 4–10, 1995, ISSN: 0952-7915.
Résumé | BibTeX | Étiquettes: Animals, Anti-Bacterial Agents, Blood Proteins, Cellular, Defensins, Gene Expression Regulation, hoffmann, Immunity, Innate, insects, M3i, Peptides
@article{hoffmann_innate_1995,
title = {Innate immunity of insects},
author = {Jules A Hoffmann},
issn = {0952-7915},
year = {1995},
date = {1995-02-01},
journal = {Curr. Opin. Immunol.},
volume = {7},
number = {1},
pages = {4--10},
abstract = {Insects are particularly resistant to microorganisms. Their host-defense system relies on several innate reactions: upon injury, the immediate onset of two proteolytic cascades leading to localized blood clotting and to melanization, the latter process involving production of cytotoxic molecules (namely reactive oxygen intermediates); the phagocytosis of bacteria and the encapsulation of larger parasites by blood cells; the induced synthesis by the fat body of a battery of potent antimicrobial peptides/polypeptides which are secreted into the hemolymph where they act synergistically to kill the invading microorganisms. The insect host defence system shares many of the basic characteristics of the mammalian acute phase response, especially at the level of the coordinate control of gene expression, where similar cis-regulatory and inducible transactivators appear to play key functions. The powerful techniques developed to study the genetics of Drosophila provide a unique opportunity to dissect the development and differentiation of this primordial immune system and may contribute to our understanding of the innate immune response in higher organisms.},
keywords = {Animals, Anti-Bacterial Agents, Blood Proteins, Cellular, Defensins, Gene Expression Regulation, hoffmann, Immunity, Innate, insects, M3i, Peptides},
pubstate = {published},
tppubtype = {article}
}
Lemaitre Bruno, Meister Marie, Govind S, Georgel Philippe, Steward R, Reichhart Jean-Marc, Hoffmann Jules A
Functional analysis and regulation of nuclear import of dorsal during the immune response in Drosophila Article de journal
Dans: EMBO J., vol. 14, no. 3, p. 536–545, 1995, ISSN: 0261-4189.
Résumé | BibTeX | Étiquettes: Animals, Anti-Bacterial Agents, Anti-Infective Agents, Antimicrobial Cationic Peptides, Biological Transport, Cell Nucleus, Cell Surface, DNA-Binding Proteins, Fat Body, Gene Expression Regulation, Genetic, hoffmann, Immunity, Immunohistochemistry, Insect Hormones, Insect Proteins, M3i, Melanins, Membrane Glycoproteins, Mutation, Neoplasms, Nuclear Proteins, Phosphoproteins, Receptors, reichhart, Signal Transduction, Toll-Like Receptors, Transcription, Transcription Factors
@article{lemaitre_functional_1995,
title = {Functional analysis and regulation of nuclear import of dorsal during the immune response in Drosophila},
author = {Bruno Lemaitre and Marie Meister and S Govind and Philippe Georgel and R Steward and Jean-Marc Reichhart and Jules A Hoffmann},
issn = {0261-4189},
year = {1995},
date = {1995-01-01},
journal = {EMBO J.},
volume = {14},
number = {3},
pages = {536--545},
abstract = {In addition to its function in embryonic development, the NF-kappa B/rel-related gene dorsal (dl) of Drosophila is expressed in larval and adult fat body where its RNA expression is enhanced upon injury. Injury also leads to a rapid nuclear translocation of dl from the cytoplasm in fat body cells. Here we present data which strongly suggest that the nuclear localization of dl during the immune response is controlled by the Toll signaling pathway, comprising gene products that participate in the intracellular part of the embryonic dorsoventral pathway. We also report that in mutants such as Toll or cactus, which exhibit melanotic tumor phenotypes, dl is constitutively nuclear. Together, these results point to a potential link between the Toll signaling pathway and melanotic tumor induction. Although dl has been shown previously to bind to kappa B-related motifs within the promoter of the antibacterial peptide coding gene diptericin, we find that injury-induced expression of diptericin can occur in the absence of dl. Furthermore, the melanotic tumor phenotype of Toll and cactus is not dl dependent. These data underline the complexity of the Drosophila immune response. Finally, we observed that like other rel proteins, dl can control the level of its own transcription.},
keywords = {Animals, Anti-Bacterial Agents, Anti-Infective Agents, Antimicrobial Cationic Peptides, Biological Transport, Cell Nucleus, Cell Surface, DNA-Binding Proteins, Fat Body, Gene Expression Regulation, Genetic, hoffmann, Immunity, Immunohistochemistry, Insect Hormones, Insect Proteins, M3i, Melanins, Membrane Glycoproteins, Mutation, Neoplasms, Nuclear Proteins, Phosphoproteins, Receptors, reichhart, Signal Transduction, Toll-Like Receptors, Transcription, Transcription Factors},
pubstate = {published},
tppubtype = {article}
}
1993
Reichhart Jean-Marc, Georgel Philippe, Meister Marie, Lemaitre Bruno, Kappler Christine, Hoffmann Jules A
Expression and nuclear translocation of the rel/NF-kappa B-related morphogen dorsal during the immune response of Drosophila Article de journal
Dans: C. R. Acad. Sci. III, Sci. Vie, vol. 316, no. 10, p. 1218–1224, 1993, ISSN: 0764-4469.
Résumé | BibTeX | Étiquettes: Animals, Blotting, Cellular, Gene Expression, Genes, Genetic, hoffmann, Immunity, Insect, M3i, NF-kappa B, Northern, reichhart, translocation, Zygote
@article{reichhart_expression_1993,
title = {Expression and nuclear translocation of the rel/NF-kappa B-related morphogen dorsal during the immune response of Drosophila},
author = {Jean-Marc Reichhart and Philippe Georgel and Marie Meister and Bruno Lemaitre and Christine Kappler and Jules A Hoffmann},
issn = {0764-4469},
year = {1993},
date = {1993-01-01},
journal = {C. R. Acad. Sci. III, Sci. Vie},
volume = {316},
number = {10},
pages = {1218--1224},
abstract = {The rel/NF-kappa B-related morphogen dorsal is a maternally expressed gene which is involved in the control of the dorso-ventral axis during early embryogenesis of Drosophila. We show that this gene is also expressed in the fat body of larvae and adults of Drosophila as well as in a tumorous blood cell line: its expression is noticeably enhanced upon bacterial (or lipopolysaccharide) challenge. This challenge also induces within 15-30 min a nuclear translocation of the dorsal protein. The genes encoding inducible antibacterial peptides in Drosophila contain kappa B-related nucleotide sequences and we show that the dorsal protein can bind to such motifs and sequence-specifically transactivate a reporter gene in co-transfection experiments with a Drosophila cell line. However, in dl1 mutants, in the absence of dorsal protein, the genes encoding antibacterial peptides retain their inducibility, suggesting a multifactorial control. The results indicate that in addition to its role in embryogenesis, dorsal is involved in the immune response of Drosophila. They also strengthen the analogy between the mammalian acute phase response and the insect immune response.},
keywords = {Animals, Blotting, Cellular, Gene Expression, Genes, Genetic, hoffmann, Immunity, Insect, M3i, NF-kappa B, Northern, reichhart, translocation, Zygote},
pubstate = {published},
tppubtype = {article}
}
1990
Hoffmann Danièle, Hoffmann Jules A
Cellular and molecular aspects of insect immunity Article de journal
Dans: Res. Immunol., vol. 141, no. 9, p. 895–896, 1990, ISSN: 0923-2494.
BibTeX | Étiquettes: Animals, Cellular, hoffmann, Immunity, insects, M3i, Molecular Biology
@article{hoffmann_cellular_1990,
title = {Cellular and molecular aspects of insect immunity},
author = {Danièle Hoffmann and Jules A Hoffmann},
issn = {0923-2494},
year = {1990},
date = {1990-12-01},
journal = {Res. Immunol.},
volume = {141},
number = {9},
pages = {895--896},
keywords = {Animals, Cellular, hoffmann, Immunity, insects, M3i, Molecular Biology},
pubstate = {published},
tppubtype = {article}
}
1977
Brehelin M, Zachary Daniel, Hoffmann Jules A
Comparative study of hemocyte capsule formation in Locusta migratoria, Melolontha melolontha and Calliphora erythrocephala Article de journal
Dans: Ann Parasitol Hum Comp, vol. 52, no. 1, p. 66–67, 1977, ISSN: 0003-4150.
BibTeX | Étiquettes: Animals, Beetles, Blood Cells, Cellular, Diptera, Grasshoppers, Hemocytes, hoffmann, Immunity, M3i
@article{brehelin_comparative_1977,
title = {Comparative study of hemocyte capsule formation in Locusta migratoria, Melolontha melolontha and Calliphora erythrocephala},
author = {M Brehelin and Daniel Zachary and Jules A Hoffmann},
issn = {0003-4150},
year = {1977},
date = {1977-02-01},
journal = {Ann Parasitol Hum Comp},
volume = {52},
number = {1},
pages = {66--67},
keywords = {Animals, Beetles, Blood Cells, Cellular, Diptera, Grasshoppers, Hemocytes, hoffmann, Immunity, M3i},
pubstate = {published},
tppubtype = {article}
}
Hoffmann Danièle, Brehelin M, Hoffmann Jules A
First results of the antibacterial defense reactions of Locusta migratoria larva and imago Article de journal
Dans: Ann Parasitol Hum Comp, vol. 52, no. 1, p. 87–88, 1977, ISSN: 0003-4150.
BibTeX | Étiquettes: Animals, Bacillus thuringiensis, bacteria, Cellular, Grasshoppers, Hematopoietic System, Hemocytes, Hemolymph, hoffmann, Immunity, Larva, M3i, Muramidase
@article{hoffmann_first_1977,
title = {First results of the antibacterial defense reactions of Locusta migratoria larva and imago},
author = {Danièle Hoffmann and M Brehelin and Jules A Hoffmann},
issn = {0003-4150},
year = {1977},
date = {1977-02-01},
journal = {Ann Parasitol Hum Comp},
volume = {52},
number = {1},
pages = {87--88},
keywords = {Animals, Bacillus thuringiensis, bacteria, Cellular, Grasshoppers, Hematopoietic System, Hemocytes, Hemolymph, hoffmann, Immunity, Larva, M3i, Muramidase},
pubstate = {published},
tppubtype = {article}
}