Huang Jianqiong, Lou Yanyan, Liu Jiyong, Bulet Philippe, Cai Chuping, Ma Kaiyu, Jiao Renjie, Hoffmann Jules A, Liégeois Samuel, Lia Zi, Ferrandon Dominique
A Toll pathway effector protects Drosophila specifically from distinct toxins secreted by a fungus or a bacterium Article de journal
Dans: PNAS, vol. 120, no. 12, 2023.
Résumé | Liens | BibTeX | Étiquettes: Baramicin A, Destruxin A, disease tolerance, enterocin O16, ferrandon, hoffmann, M3i, microbial toxins, resilience
@article{Huang2023,
title = {A Toll pathway effector protects Drosophila specifically from distinct toxins secreted by a fungus or a bacterium},
author = {Jianqiong Huang and Yanyan Lou and Jiyong Liu and Philippe Bulet and Chuping Cai and Kaiyu Ma and Renjie Jiao and Jules A Hoffmann and Samuel Liégeois and Zi Lia and Dominique Ferrandon},
editor = {Hugo Bellen, Baylor College of Medicine, Houston, TX},
url = {https://doi.org/10.1073/pnas.2205140120},
doi = {10.1073/pnas.2205140120},
year = {2023},
date = {2023-03-14},
urldate = {2023-03-14},
journal = {PNAS},
volume = {120},
number = {12},
abstract = {Major immune response pathways control the expression of hundreds of genes that represent potential effectors of the immune response. The Drosophila Toll pathway is required in the host defenses against several Gram-positive bacterial infections as well as against fungal infections. The current paradigm is that peptides secreted in the hemolymph during the systemic immune response are either bona fide antimicrobial peptides or likely ones. The finding of a dual role for one Toll pathway effector in the resilience to both Enterococcus faecalis and Metarhizium robertsii infections underscores an original concept in insect innate immunity. Evolution can select effectors tailored to protect the host from the action of microbial toxins of prokaryotic or eukaryotic origin, independently of antibodies or detoxification pathways.},
keywords = {Baramicin A, Destruxin A, disease tolerance, enterocin O16, ferrandon, hoffmann, M3i, microbial toxins, resilience},
pubstate = {published},
tppubtype = {article}
}
Xu Rui, Lou Yanyan, Tidu Antonin, Bulet Philippe, Heinekamp Thorsten, Martin Franck, Brakhage Axel, Li Zi, Liégeois Samuel, Ferrandon Dominique
The Toll pathway mediates Drosophila resilience to Aspergillus mycotoxins through specific Bomanins Article de journal
Dans: EMBO Rep, p. e56036, 2022, ISSN: 1469-3178.
Résumé | Liens | BibTeX | Étiquettes: ERIANI, ferrandon, M3i, MARTIN, Unité ARN
@article{pmid36322050,
title = {The Toll pathway mediates Drosophila resilience to Aspergillus mycotoxins through specific Bomanins},
author = {Rui Xu and Yanyan Lou and Antonin Tidu and Philippe Bulet and Thorsten Heinekamp and Franck Martin and Axel Brakhage and Zi Li and Samuel Liégeois and Dominique Ferrandon},
url = {https://pubmed.ncbi.nlm.nih.gov/36322050/},
doi = {10.15252/embr.202256036},
issn = {1469-3178},
year = {2022},
date = {2022-11-01},
urldate = {2022-11-01},
journal = {EMBO Rep},
pages = {e56036},
abstract = {Host defense against infections encompasses both resistance, which targets microorganisms for neutralization or elimination, and resilience/disease tolerance, which allows the host to withstand/tolerate pathogens and repair damages. In Drosophila, the Toll signaling pathway is thought to mediate resistance against fungal infections by regulating the secretion of antimicrobial peptides, potentially including Bomanins. We find that Aspergillus fumigatus kills Drosophila Toll pathway mutants without invasion because its dissemination is blocked by melanization, suggesting a role for Toll in host defense distinct from resistance. We report that mutants affecting the Toll pathway or the 55C Bomanin locus are susceptible to the injection of two Aspergillus mycotoxins, restrictocin and verruculogen. The vulnerability of 55C deletion mutants to these mycotoxins is rescued by the overexpression of Bomanins specific to each challenge. Mechanistically, flies in which BomS6 is expressed in the nervous system exhibit an enhanced recovery from the tremors induced by injected verruculogen and display improved survival. Thus, innate immunity also protects the host against the action of microbial toxins through secreted peptides and thereby increases its resilience to infection.},
keywords = {ERIANI, ferrandon, M3i, MARTIN, Unité ARN},
pubstate = {published},
tppubtype = {article}
}
Liégeois Samuel, Ferrandon Dominique
An atlas for hemocytes in an insect Article de journal
Dans: Elife, 2020.
Résumé | Liens | BibTeX | Étiquettes: Drosophila, ferrandon, Hemocytes, M3i, single-cell
@article{Liégeois2020b,
title = {An atlas for hemocytes in an insect},
author = {Samuel Liégeois and Dominique Ferrandon},
editor = {Elife},
url = {https://elifesciences.org/articles/59113},
doi = {10.7554/eLife.59113},
year = {2020},
date = {2020-06-30},
journal = {Elife},
abstract = {Single-cell RNA sequencing has revealed distinct subpopulations of hemocytes in fruit fly larvae},
keywords = {Drosophila, ferrandon, Hemocytes, M3i, single-cell},
pubstate = {published},
tppubtype = {article}
}
Liégeois Samuel, Wang Wenhui, Ferrandon Dominique
Methods to Quantify In Vivo Phagocytic Uptake and Opsonization of Live or Killed Microbes in Drosophila melanogaster Chapitre d'ouvrage
Dans: Handbooks, Springer Protocols (Ed.): Chapitre 5, p. 79, Springer Protocols Handbooks, 2020, ISBN: 9781071602584.
Résumé | Liens | BibTeX | Étiquettes: Drosophila, ferrandon, M3i, opsonization, Phagocytosis, protocol
@inbook{Liégeois2020,
title = {Methods to Quantify In Vivo Phagocytic Uptake and Opsonization of Live or Killed Microbes in Drosophila melanogaster},
author = {Samuel Liégeois and Wenhui Wang and Dominique Ferrandon},
editor = {Springer Protocols Handbooks},
url = {https://link.springer.com/protocol/10.1007%2F978-1-0716-0259-1_5},
doi = {10.1007/978-1-0716-0259-1_5},
isbn = {9781071602584},
year = {2020},
date = {2020-01-28},
pages = {79},
publisher = {Springer Protocols Handbooks},
chapter = {5},
series = {Immunity in Insects},
abstract = {Here we describe different phagocytosis assays in Drosophila, using various killed or live microbes (bacteria and fungi). Different ex vivo and in vivo approaches are shown, to quantify larval and adult phagocytosis of microorganisms by hemocytes. We also explain how to perform an in vivo opsonization assay. Altogether, these protocols represent a useful range of tools to the researcher interested in the detailed analysis of phagocytosis in the context of the study of host-pathogen relationships.},
keywords = {Drosophila, ferrandon, M3i, opsonization, Phagocytosis, protocol},
pubstate = {published},
tppubtype = {inbook}
}
Franchet Adrien, Niehus Sebastian, Caravello Gaetan, Ferrandon Dominique
Phosphatidic acid as a limiting host metabolite for the proliferation of the microsporidium Tubulinosema ratisbonensis in Drosophila flies Article de journal
Dans: Nature Microbiology, vol. 4, no. 4, p. 645, 2019, ISBN: 2058-5276.
Résumé | Liens | BibTeX | Étiquettes: Drosophila, ferrandon, Host-Parasite Interactions, Lipids, M3i, metabolism, microsporidia
@article{Franchet2019,
title = {Phosphatidic acid as a limiting host metabolite for the proliferation of the microsporidium Tubulinosema ratisbonensis in Drosophila flies},
author = {Adrien Franchet and Sebastian Niehus and Gaetan Caravello and Dominique Ferrandon},
editor = {Nature Publishing Group},
url = {https://www.nature.com/articles/s41564-018-0344-y},
doi = {10.1038/s41564-018-0344-y},
isbn = {2058-5276},
year = {2019},
date = {2019-01-28},
journal = {Nature Microbiology},
volume = {4},
number = {4},
pages = {645},
abstract = {A Drosophila melanogaster systemic infection model for the microsporidian Tubulinosema ratisbonensis reveals that the parasite hijacks host phosphatidic acid, which is a limiting precursor for synthesis of parasite membranes and therefore proliferation.},
keywords = {Drosophila, ferrandon, Host-Parasite Interactions, Lipids, M3i, metabolism, microsporidia},
pubstate = {published},
tppubtype = {article}
}
Gros Frédéric, Fournel Sylvie, Liégeois Samuel, Richard Daniel, Soulas-Sprauel Pauline
Atlas d'immunologie Ouvrage
Editions Dunod, 2018, ISBN: 9782100767052.
Résumé | BibTeX | Étiquettes: atlas, cours, ferrandon, immunologie, M3i
@book{Gros2018,
title = {Atlas d'immunologie},
author = {Frédéric Gros and Sylvie Fournel and Samuel Liégeois and Daniel Richard and Pauline Soulas-Sprauel},
editor = {Editions Dunod },
isbn = {9782100767052},
year = {2018},
date = {2018-09-01},
edition = {Editions Dunod},
abstract = {Cet ouvrage présente de façon synthétique et illustrée, les nombreux mécanismes de la réponse immunitaire et les différents types de cellules intervenant dans le système immunitaire.
Les notions de base en immunologie, les modes d'explorations de l'immunité et les applications médicales de l'immunologie et les pathologies sont présentés sous forme de fiches illustrées par de nombreux schémas et photos en couleur.},
keywords = {atlas, cours, ferrandon, immunologie, M3i},
pubstate = {published},
tppubtype = {book}
}
Haller Samantha, Franchet Adrien, Hakkim A, Chen J, Drenkard E, Yu S, Schirmeier Steffi, Li Zi, Martins Nelson, Ausubel FM, Liégeois Samuel, Ferrandon Dominique
Quorum-sensing regulator RhlR but not its autoinducer RhlI enables Pseudomonas to evade opsonization Article de journal
Dans: EMBO Reports, 2018.
Liens | BibTeX | Étiquettes: Drosophila, ferrandon, M3i, Opsonin Proteins, Phagocytosis, Pseudomonas aeruginosa, Quorum Sensing
@article{S2018,
title = {Quorum-sensing regulator RhlR but not its autoinducer RhlI enables Pseudomonas to evade opsonization},
author = {Samantha Haller and Adrien Franchet and A Hakkim and J Chen and E Drenkard and S Yu and Steffi Schirmeier and Zi Li and Nelson Martins and FM Ausubel and Samuel Liégeois and Dominique Ferrandon},
url = {http://embor.embopress.org/content/early/2018/03/09/embr.201744880},
doi = {10.15252/embr.201744880},
year = {2018},
date = {2018-03-09},
journal = {EMBO Reports},
keywords = {Drosophila, ferrandon, M3i, Opsonin Proteins, Phagocytosis, Pseudomonas aeruginosa, Quorum Sensing},
pubstate = {published},
tppubtype = {article}
}
Lee Kwang-Zin, Lestradet Matthieu, Socha Catherine, Schirmeier Stefanie, Schmitz Antonin, Spenlé Caroline, Lefebvre Olivier, Keime Céline, Yamba Wennida M., Bou Aoun Richard, Liegeois Samuel, Schwab Yannick, Simon-Assmann Patricia, Dalle Frédéric, Ferrandon Dominique
Enterocyte Purge and Rapid Recovery Is a Resilience Reaction of the Gut Epithelium to Pore-Forming Toxin Attack Article de journal
Dans: Cell Host & Microbe, 2016, ISSN: 1931-3128.
Résumé | Liens | BibTeX | Étiquettes: Epithelium, ferrandon, gut, M3i, resilience
@article{Lee2016,
title = {Enterocyte Purge and Rapid Recovery Is a Resilience Reaction of the Gut Epithelium to Pore-Forming Toxin Attack},
author = {Kwang-Zin Lee and Matthieu Lestradet and Catherine Socha and Stefanie Schirmeier and Antonin Schmitz and Caroline Spenlé and Olivier Lefebvre and Céline Keime and Wennida M. Yamba and Richard Bou Aoun and Samuel Liegeois and Yannick Schwab and Patricia Simon-Assmann and Frédéric Dalle and Dominique Ferrandon},
editor = {L Abate},
url = {http://www.sciencedirect.com/science/article/pii/S193131281630436X},
doi = {10.1016/j.chom.2016.10.010},
issn = {1931-3128},
year = {2016},
date = {2016-11-23},
urldate = {2016-11-25},
journal = {Cell Host & Microbe},
abstract = {Summary
Besides digesting nutrients, the gut protects the host against invasion by pathogens. Enterocytes may be subjected to damage by both microbial and host defensive responses, causing their death. Here, we report a rapid epithelial response that alleviates infection stress and protects the enterocytes from the action of microbial virulence factors. Intestinal epithelia exposed to hemolysin, a pore-forming toxin secreted by Serratia marcescens, undergo an evolutionarily conserved process of thinning followed by the recovery of their initial thickness within a few hours. In response to hemolysin attack, Drosophila melanogaster enterocytes extrude most of their apical cytoplasm, including damaged organelles such as mitochondria, yet do not lyse. We identify two secreted peptides, the expression of which requires CyclinJ, that mediate the recovery phase in which enterocytes regain their original shape and volume. Epithelial thinning and recovery constitute a fast and efficient response to intestinal infections, with pore-forming toxins acting as alarm signals.},
keywords = {Epithelium, ferrandon, gut, M3i, resilience},
pubstate = {published},
tppubtype = {article}
}
Brunke Sascha, Quintin Jessica, Kasper Lydia, Jacobsen Ilse D, Richter Martin E, Hiller Ekkehard, Schwarzmüller Tobias, d'Enfert Christophe, Kuchler Karl, Rupp Steffen, Hube Bernhard, Ferrandon Dominique
Of mice, flies--and men? Comparing fungal infection models for large-scale screening efforts Article de journal
Dans: Dis Model Mech, vol. 8, no. 5, p. 473–486, 2015, ISSN: 1754-8411.
Résumé | Liens | BibTeX | Étiquettes: Alternative infection models, Candida glabrata, ferrandon, Fungal virulence factors, M3i, Mutant library, Signature-tagged mutagenesis
@article{brunke_mice_2015b,
title = {Of mice, flies--and men? Comparing fungal infection models for large-scale screening efforts},
author = {Sascha Brunke and Jessica Quintin and Lydia Kasper and Ilse D Jacobsen and Martin E Richter and Ekkehard Hiller and Tobias Schwarzmüller and Christophe d'Enfert and Karl Kuchler and Steffen Rupp and Bernhard Hube and Dominique Ferrandon},
url = {http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4415897/},
doi = {10.1242/dmm.019901},
issn = {1754-8411},
year = {2015},
date = {2015-01-01},
journal = {Dis Model Mech},
volume = {8},
number = {5},
pages = {473--486},
abstract = {Studying infectious diseases requires suitable hosts for experimental in vivo infections. Recent years have seen the advent of many alternatives to murine infection models. However, the use of non-mammalian models is still controversial because it is often unclear how well findings from these systems predict virulence potential in humans or other mammals. Here, we compare the commonly used models, fruit fly and mouse (representing invertebrate and mammalian hosts), for their similarities and degree of correlation upon infection with a library of mutants of an important fungal pathogen, the yeast Candida glabrata. Using two indices, for fly survival time and for mouse fungal burden in specific organs, we show a good agreement between the models. We provide a suitable predictive model for estimating the virulence potential of C. glabrata mutants in the mouse from fly survival data. As examples, we found cell wall integrity mutants attenuated in flies, and mutants of a MAP kinase pathway had defective virulence in flies and reduced relative pathogen fitness in mice. In addition, mutants with strongly reduced in vitro growth generally, but not always, had reduced virulence in flies. Overall, we demonstrate that surveying Drosophila survival after infection is a suitable model to predict the outcome of murine infections, especially for severely attenuated C. glabrata mutants. Pre-screening of mutants in an invertebrate Drosophila model can, thus, provide a good estimate of the probability of finding a strain with reduced microbial burden in the mouse host.},
keywords = {Alternative infection models, Candida glabrata, ferrandon, Fungal virulence factors, M3i, Mutant library, Signature-tagged mutagenesis},
pubstate = {published},
tppubtype = {article}
}
Amcheslavsky Alla, Song Wei, Li Qi, Nie Yingchao, Bragatto Ivan, Ferrandon Dominique, Perrimon Norbert, Ip Tony Y
Enteroendocrine cells support intestinal stem-cell-mediated homeostasis in Drosophila Article de journal
Dans: Cell Rep, vol. 9, no. 1, p. 32–39, 2014, ISSN: 2211-1247.
Résumé | Liens | BibTeX | Étiquettes: Animals, Cell Differentiation, Enterocytes, Enteroendocrine Cells, Female, ferrandon, Homeostasis, Intestines, M3i, Male, Stem Cells, Tachykinins
@article{amcheslavsky_enteroendocrine_2014b,
title = {Enteroendocrine cells support intestinal stem-cell-mediated homeostasis in Drosophila},
author = {Alla Amcheslavsky and Wei Song and Qi Li and Yingchao Nie and Ivan Bragatto and Dominique Ferrandon and Norbert Perrimon and Tony Y Ip},
doi = {10.1016/j.celrep.2014.08.052},
issn = {2211-1247},
year = {2014},
date = {2014-10-01},
journal = {Cell Rep},
volume = {9},
number = {1},
pages = {32--39},
abstract = {Intestinal stem cells in the adult Drosophila midgut are regulated by growth factors produced from the surrounding niche cells including enterocytes and visceral muscle. The role of the other major cell type, the secretory enteroendocrine cells, in regulating intestinal stem cells remains unclear. We show here that newly eclosed scute loss-of-function mutant flies are completely devoid of enteroendocrine cells. These enteroendocrine cell-less flies have normal ingestion and fecundity but shorter lifespan. Moreover, in these newly eclosed mutant flies, the diet-stimulated midgut growth that depends on the insulin-like peptide 3 expression in the surrounding muscle is defective. The depletion of Tachykinin-producing enteroendocrine cells or knockdown of Tachykinin leads to a similar although less severe phenotype. These results establish that enteroendocrine cells serve as an important link between diet and visceral muscle expression of an insulin-like growth factor to stimulate intestinal stem cell proliferation and tissue growth.},
keywords = {Animals, Cell Differentiation, Enterocytes, Enteroendocrine Cells, Female, ferrandon, Homeostasis, Intestines, M3i, Male, Stem Cells, Tachykinins},
pubstate = {published},
tppubtype = {article}
}
Haller Samantha, Limmer Stefanie, Ferrandon Dominique
Assessing Pseudomonas virulence with a nonmammalian host: Drosophila melanogaster Article de journal
Dans: Methods Mol. Biol., vol. 1149, p. 723–740, 2014, ISSN: 1940-6029.
Résumé | Liens | BibTeX | Étiquettes: Animal, Animals, Antimicrobial Cationic Peptides, Biological Assay, Colony Count, Disease Models, ferrandon, Hemolymph, Host-Pathogen Interactions, M3i, Mammals, Microbial, Pseudomonas aeruginosa, Pseudomonas Infections, Reverse Transcriptase Polymerase Chain Reaction, Virulence
@article{haller_assessing_2014b,
title = {Assessing Pseudomonas virulence with a nonmammalian host: Drosophila melanogaster},
author = {Samantha Haller and Stefanie Limmer and Dominique Ferrandon},
doi = {10.1007/978-1-4939-0473-0_56},
issn = {1940-6029},
year = {2014},
date = {2014-01-01},
journal = {Methods Mol. Biol.},
volume = {1149},
pages = {723--740},
abstract = {Drosophila melanogaster flies represent an interesting model to study host-pathogen interactions as: (1) they are cheap and easy to raise rapidly and do not bring up ethical issues, (2) available genetic tools are highly sophisticated, for instance allowing tissue-specific alteration of gene expression, e.g., of immune genes, (3) they have a relatively complex organization, with distinct digestive tract and body cavity in which local or systemic infections, respectively, take place, (4) a medium throughput can be achieved in genetic screens, for instance looking for Pseudomonas aeruginosa mutants with altered virulence. We present here the techniques used to investigate host-pathogen relationships, namely the two major models of infections as well as the relevant parameters used to monitor the infection (survival, bacterial titer, induction of host immune response).},
keywords = {Animal, Animals, Antimicrobial Cationic Peptides, Biological Assay, Colony Count, Disease Models, ferrandon, Hemolymph, Host-Pathogen Interactions, M3i, Mammals, Microbial, Pseudomonas aeruginosa, Pseudomonas Infections, Reverse Transcriptase Polymerase Chain Reaction, Virulence},
pubstate = {published},
tppubtype = {article}
}
Lestradet Matthieu, Lee Kwan Zin, Ferrandon Dominique
Drosophila as a model for intestinal infections Article de journal
Dans: Methods Mol Biol, vol. 1197, p. 11–40, 2014, ISSN: 1940-6029 (Electronic) 1064-3745 (Linking).
Résumé | Liens | BibTeX | Étiquettes: Animal, Animals, Bacterial Physiological Phenomena, Disease Models, ferrandon, Gastrointestinal Tract, Host-Pathogen Interactions, M3i
@article{lestradet_drosophila_2014b,
title = {Drosophila as a model for intestinal infections},
author = {Matthieu Lestradet and Kwan Zin Lee and Dominique Ferrandon},
doi = {10.1007/978-1-4939-1261-2_2},
issn = {1940-6029 (Electronic) 1064-3745 (Linking)},
year = {2014},
date = {2014-01-01},
journal = {Methods Mol Biol},
volume = {1197},
pages = {11--40},
abstract = {Drosophila melanogaster is a powerful model to study infections thanks to the power of its genetics and knowledge on its biology accumulated for over a century. While the systemic humoral immune response against invading microbes has been intensively studied in the past two decades, the study of intestinal infections is more recent. Here, we present the methods that are currently in use to probe various aspects of the host-pathogen interactions between Drosophila and ingested microbes, with an emphasis on the study of the midgut epithelium, which constitutes the major interface between the organism and the microbe-rich ingested food.},
keywords = {Animal, Animals, Bacterial Physiological Phenomena, Disease Models, ferrandon, Gastrointestinal Tract, Host-Pathogen Interactions, M3i},
pubstate = {published},
tppubtype = {article}
}
Schwarzmüller Tobias, Ma Biao, Hiller Ekkehard, Istel Fabian, Tscherner Michael, Brunke Sascha, Ames Lauren, Firon Arnaud, Green Brian, Cabral Vitor, Marcet-Houben Marina, Jacobsen Ilse D, Quintin Jessica, Seider Katja, Frohner Ingrid, Glaser Walter, Jungwirth Helmut, Bachellier-Bassi Sophie, Chauvel Murielle, Zeidler Ute, Ferrandon Dominique, Gabaldón Toni, Hube Bernhard, d'Enfert Christophe, Rupp Steffen, Cormack Brendan, Haynes Ken, Kuchler Karl
Systematic phenotyping of a large-scale Candida glabrata deletion collection reveals novel antifungal tolerance genes Article de journal
Dans: PLoS Pathog., vol. 10, no. 6, p. e1004211, 2014, ISSN: 1553-7374.
Résumé | Liens | BibTeX | Étiquettes: Antifungal Agents, Azoles, Biofilms, Candida glabrata, Candidiasis, Cell Wall, Drug Resistance, Echinocandins, ferrandon, Fungal, Fungal Proteins, Gene Deletion, Gene Knockout Techniques, Gene Library, M3i, Microbial Sensitivity Tests, Osmotic Pressure, Phenotype
@article{schwarzmuller_systematic_2014b,
title = {Systematic phenotyping of a large-scale Candida glabrata deletion collection reveals novel antifungal tolerance genes},
author = {Tobias Schwarzmüller and Biao Ma and Ekkehard Hiller and Fabian Istel and Michael Tscherner and Sascha Brunke and Lauren Ames and Arnaud Firon and Brian Green and Vitor Cabral and Marina Marcet-Houben and Ilse D Jacobsen and Jessica Quintin and Katja Seider and Ingrid Frohner and Walter Glaser and Helmut Jungwirth and Sophie Bachellier-Bassi and Murielle Chauvel and Ute Zeidler and Dominique Ferrandon and Toni Gabaldón and Bernhard Hube and Christophe d'Enfert and Steffen Rupp and Brendan Cormack and Ken Haynes and Karl Kuchler},
doi = {10.1371/journal.ppat.1004211},
issn = {1553-7374},
year = {2014},
date = {2014-01-01},
journal = {PLoS Pathog.},
volume = {10},
number = {6},
pages = {e1004211},
abstract = {The opportunistic fungal pathogen Candida glabrata is a frequent cause of candidiasis, causing infections ranging from superficial to life-threatening disseminated disease. The inherent tolerance of C. glabrata to azole drugs makes this pathogen a serious clinical threat. To identify novel genes implicated in antifungal drug tolerance, we have constructed a large-scale C. glabrata deletion library consisting of 619 unique, individually bar-coded mutant strains, each lacking one specific gene, all together representing almost 12% of the genome. Functional analysis of this library in a series of phenotypic and fitness assays identified numerous genes required for growth of C. glabrata under normal or specific stress conditions, as well as a number of novel genes involved in tolerance to clinically important antifungal drugs such as azoles and echinocandins. We identified 38 deletion strains displaying strongly increased susceptibility to caspofungin, 28 of which encoding proteins that have not previously been linked to echinocandin tolerance. Our results demonstrate the potential of the C. glabrata mutant collection as a valuable resource in functional genomics studies of this important fungal pathogen of humans, and to facilitate the identification of putative novel antifungal drug target and virulence genes.},
keywords = {Antifungal Agents, Azoles, Biofilms, Candida glabrata, Candidiasis, Cell Wall, Drug Resistance, Echinocandins, ferrandon, Fungal, Fungal Proteins, Gene Deletion, Gene Knockout Techniques, Gene Library, M3i, Microbial Sensitivity Tests, Osmotic Pressure, Phenotype},
pubstate = {published},
tppubtype = {article}
}
Quintin Jessica, Asmar Joelle, Matskevich Alexey A, Lafarge Marie-Céline, Ferrandon Dominique
The Drosophila Toll pathway controls but does not clear Candida glabrata infections Article de journal
Dans: J. Immunol., vol. 190, no. 6, p. 2818–2827, 2013, ISSN: 1550-6606.
Résumé | Liens | BibTeX | Étiquettes: Adaptor Proteins, Animal, Animals, Antigens, Candida glabrata, Candidiasis, Cells, Cultured, Differentiation, Disease Models, ferrandon, Immunologic, M3i, Phagocytosis, Receptors, Signal Transducing, Signal Transduction, Toll-Like Receptors, Virulence
@article{quintin_drosophila_2013b,
title = {The Drosophila Toll pathway controls but does not clear Candida glabrata infections},
author = {Jessica Quintin and Joelle Asmar and Alexey A Matskevich and Marie-Céline Lafarge and Dominique Ferrandon},
doi = {10.4049/jimmunol.1201861},
issn = {1550-6606},
year = {2013},
date = {2013-03-01},
journal = {J. Immunol.},
volume = {190},
number = {6},
pages = {2818--2827},
abstract = {The pathogenicity of Candida glabrata to patients remains poorly understood for lack of convenient animal models to screen large numbers of mutants for altered virulence. In this study, we explore the minihost model Drosophila melanogaster from the dual perspective of host and pathogen. As in vertebrates, wild-type flies contain C. glabrata systemic infections yet are unable to kill the injected yeasts. As for other fungal infections in Drosophila, the Toll pathway restrains C. glabrata proliferation. Persistent C. glabrata yeasts in wild-type flies do not appear to be able to take shelter in hemocytes from the action of the Toll pathway, the effectors of which remain to be identified. Toll pathway mutant flies succumb to injected C. glabrata. In this immunosuppressed background, cellular defenses provide a residual level of protection. Although both the Gram-negative binding protein 3 pattern recognition receptor and the Persephone protease-dependent detection pathway are required for Toll pathway activation by C. glabrata, only GNBP3, and not psh mutants, are susceptible to the infection. Both Candida albicans and C. glabrata are restrained by the Toll pathway, yet the comparative study of phenoloxidase activation reveals a differential activity of the Toll pathway against these two fungal pathogens. Finally, we establish that the high-osmolarity glycerol pathway and yapsins are required for virulence of C. glabrata in this model. Unexpectedly, yapsins do not appear to be required to counteract the cellular immune response but are needed for the colonization of the wild-type host.},
keywords = {Adaptor Proteins, Animal, Animals, Antigens, Candida glabrata, Candidiasis, Cells, Cultured, Differentiation, Disease Models, ferrandon, Immunologic, M3i, Phagocytosis, Receptors, Signal Transducing, Signal Transduction, Toll-Like Receptors, Virulence},
pubstate = {published},
tppubtype = {article}
}
Ferrandon Dominique
The complementary facets of epithelial host defenses in the genetic model organism Drosophila melanogaster: from resistance to resilience Article de journal
Dans: Curr. Opin. Immunol., vol. 25, no. 1, p. 59–70, 2013, ISSN: 1879-0372.
Résumé | Liens | BibTeX | Étiquettes: Adult Stem Cells, aging, Animal, Animals, Cell Proliferation, Disease Models, Enterocytes, ferrandon, Humans, Immunity, Intestinal Mucosa, M3i, Metagenome, Stem Cell Niche, Wound Healing
@article{ferrandon_complementary_2013b,
title = {The complementary facets of epithelial host defenses in the genetic model organism Drosophila melanogaster: from resistance to resilience},
author = {Dominique Ferrandon},
doi = {10.1016/j.coi.2012.11.008},
issn = {1879-0372},
year = {2013},
date = {2013-02-01},
journal = {Curr. Opin. Immunol.},
volume = {25},
number = {1},
pages = {59--70},
abstract = {Significant advances have been made in our understanding of the host defense against microbial infections taking place at frontier epithelia of Drosophila flies. Immune deficiency (IMD), the major NF-κB immune response pathway induced in these epithelia, displays remarkable adaptations in its activation and regulation in the respiratory and digestive tract. The host defense against ingested pathogens is not limited to resistance, that is, the immune response. It also involves resilience, the capacity of the host to endure and repair damages inflicted by pathogens or the host's own immune response. For instance, enterocytes damaged by pathogens, the microbiota of aging flies, or host-derived reactive oxygen species (ROS), are replaced under the control of multiple pathways by the compensatory proliferation of intestinal stem cells (ISCs).},
keywords = {Adult Stem Cells, aging, Animal, Animals, Cell Proliferation, Disease Models, Enterocytes, ferrandon, Humans, Immunity, Intestinal Mucosa, M3i, Metagenome, Stem Cell Niche, Wound Healing},
pubstate = {published},
tppubtype = {article}
}
Ayyaz Arshad, Giammarinaro Philippe, Liégeois Samuel, Lestradet Matthieu, Ferrandon Dominique
Dans: Immunobiology, vol. 218, no. 4, p. 635–644, 2013, ISSN: 1878-3279.
Résumé | Liens | BibTeX | Étiquettes: Adaptor Proteins, Animal, Animals, Antigens, Differentiation, Disease Models, ferrandon, Immunity, Immunologic, Innate, Intestinal Diseases, M3i, Mucosal, Mutation, Receptors, Signal Transducing, Staphylococcal Infections, Staphylococcus, Starvation, Toll-Like Receptors
@article{ayyaz_negative_2013b,
title = {A negative role for MyD88 in the resistance to starvation as revealed in an intestinal infection of Drosophila melanogaster with the Gram-positive bacterium Staphylococcus xylosus},
author = {Arshad Ayyaz and Philippe Giammarinaro and Samuel Liégeois and Matthieu Lestradet and Dominique Ferrandon},
doi = {10.1016/j.imbio.2012.07.027},
issn = {1878-3279},
year = {2013},
date = {2013-01-01},
journal = {Immunobiology},
volume = {218},
number = {4},
pages = {635--644},
abstract = {Drosophila melanogaster is a useful model to investigate mucosal immunity. The immune response to intestinal infections is mediated partly by the Immune deficiency (IMD) pathway, which only gets activated by a type of peptidoglycan lacking in several medically important Gram-positive bacterial species such as Staphylococcus. Thus, the intestinal host defense against such bacterial strains remains poorly known. Here, we have used Staphylococcus xylosus to develop a model of intestinal infections by Gram-positive bacteria. S. xylosus behaves as an opportunistic pathogen in a septic injury model, being able to kill only flies immunodeficient either for the Toll pathway or the cellular response. When ingested, it is controlled by IMD-independent host intestinal defenses, yet flies eventually die. Having excluded an overreaction of the immune response and the action of toxins, we find that flies actually succumb to starvation, likely as a result of a competition for sucrose between the bacteria and the flies. Fat stores of wild-type flies are severely reduced within a day, a period when sucrose is not yet exhausted in the feeding solution. Interestingly, the Toll pathway mutant MyD88 is more resistant to the ingestion of S. xylosus and to starvation than wild-type flies. MyD88 flies do not rapidly deplete their fat stores when starved, in contrast to wild-type flies. Thus, we have uncovered a novel function of MyD88 in the regulation of metabolism that appears to be independent of its known roles in immunity and development.},
keywords = {Adaptor Proteins, Animal, Animals, Antigens, Differentiation, Disease Models, ferrandon, Immunity, Immunologic, Innate, Intestinal Diseases, M3i, Mucosal, Mutation, Receptors, Signal Transducing, Staphylococcal Infections, Staphylococcus, Starvation, Toll-Like Receptors},
pubstate = {published},
tppubtype = {article}
}
Ezekowitz Alan R B, Dimarcq Jean-Luc, Kafatos Fotis, Levashina Elena A, Ferrandon Dominique, Hetru Charles, Imler Jean-Luc, Reichhart Jean-Marc
Lawrence's book review unfair to Hoffmann Article de journal
Dans: Curr. Biol., vol. 22, no. 12, p. R482, 2012, ISSN: 1879-0445.
Liens | BibTeX | Étiquettes: Book Reviews as Topic, Ethics, ferrandon, imler, M3i, Professional, reichhart
@article{ezekowitz_lawrences_2012,
title = {Lawrence's book review unfair to Hoffmann},
author = {Alan R B Ezekowitz and Jean-Luc Dimarcq and Fotis Kafatos and Elena A Levashina and Dominique Ferrandon and Charles Hetru and Jean-Luc Imler and Jean-Marc Reichhart},
doi = {10.1016/j.cub.2012.05.015},
issn = {1879-0445},
year = {2012},
date = {2012-06-01},
journal = {Curr. Biol.},
volume = {22},
number = {12},
pages = {R482},
keywords = {Book Reviews as Topic, Ethics, ferrandon, imler, M3i, Professional, reichhart},
pubstate = {published},
tppubtype = {article}
}
Niehus Sebastian, Giammarinaro Philippe, Liégeois Samuel, Quintin Jessica, Ferrandon Dominique
Fly culture collapse disorder: detection, prophylaxis and eradication of the microsporidian parasite Tubulinosema ratisbonensis infecting Drosophila melanogaster Article de journal
Dans: Fly (Austin), vol. 6, no. 3, p. 193–204, 2012, ISSN: 1933-6942.
Résumé | Liens | BibTeX | Étiquettes: Animals, Apansporoblastina, Apansporoblastina/*genetics/physiology, Base Sequence, cure, Disinfection, Disinfection/methods, DNA, DNA Primers, Drosophila melanogaster/*microbiology, ferrandon, fumagillin, Fungal, Fungal/chemistry, M3i, microsporidia, obligate intracellular parasitism, PCR detection, Phylogeny, Polymerase Chain Reaction, Polymerase Chain Reaction/methods, prophylaxis, Ribosomal, Ribosomal/chemistry, Sequence Alignment, Tubulinosema ratisbonensis
@article{niehus_fly_2012b,
title = {Fly culture collapse disorder: detection, prophylaxis and eradication of the microsporidian parasite Tubulinosema ratisbonensis infecting Drosophila melanogaster},
author = {Sebastian Niehus and Philippe Giammarinaro and Samuel Liégeois and Jessica Quintin and Dominique Ferrandon},
doi = {10.4161/fly.20896},
issn = {1933-6942},
year = {2012},
date = {2012-01-01},
journal = {Fly (Austin)},
volume = {6},
number = {3},
pages = {193--204},
abstract = {Drosophila melanogaster is a robust model to investigate many biological problems. It is however prone to some infections, which may endanger fly stocks if left unchecked for. One such infection is caused by an obligate fungal intracellular parasite, Tubulinosema ratisbonensis, which can be found in laboratory stocks. Here, we identify and briefly characterize a T. ratisbonensis strain that was infesting our Drosophila cultures and that required intensive measures to contain and eradicate the infection. We describe the phenotypes of infested stocks. We also report PCR-based techniques that allow the detection of infested stocks with a high sensitivity. We have developed a high-throughput qPCR assay that allows the efficient parallel screening of a large number of potentially-infested stocks. We also have investigated several prophylactic measures to prevent the further contamination of stocks, namely UV-exposure, ethanol treatment, bleaching, and desiccation. Bleaching was found to kill all spores. Other treatments were less effective but were found to be sufficient to prevent further contamination of noninfested stocks. Two treatments were efficacious in curing infested stocks (1) bleaching of eggs and subsequent raising of the larvae in clean vials; (2) fumagillin treatment. These cures only work on stocks that have not become too weak to withstand the procedures.},
keywords = {Animals, Apansporoblastina, Apansporoblastina/*genetics/physiology, Base Sequence, cure, Disinfection, Disinfection/methods, DNA, DNA Primers, Drosophila melanogaster/*microbiology, ferrandon, fumagillin, Fungal, Fungal/chemistry, M3i, microsporidia, obligate intracellular parasitism, PCR detection, Phylogeny, Polymerase Chain Reaction, Polymerase Chain Reaction/methods, prophylaxis, Ribosomal, Ribosomal/chemistry, Sequence Alignment, Tubulinosema ratisbonensis},
pubstate = {published},
tppubtype = {article}
}
Meister Marie, Ferrandon Dominique
Immune cell transdifferentiation: a complex crosstalk between circulating immune cells and the haematopoietic niche Article de journal
Dans: EMBO Rep., vol. 13, no. 1, p. 3–4, 2012, ISSN: 1469-3178.
Liens | BibTeX | Étiquettes: Animals, Cell Communication, Cell Transdifferentiation, ferrandon, Hematopoietic Stem Cells, Humans, Immune System, M3i, Signal Transduction, Stem Cell Niche
@article{meister_immune_2012,
title = {Immune cell transdifferentiation: a complex crosstalk between circulating immune cells and the haematopoietic niche},
author = {Marie Meister and Dominique Ferrandon},
doi = {10.1038/embor.2011.238},
issn = {1469-3178},
year = {2012},
date = {2012-01-01},
journal = {EMBO Rep.},
volume = {13},
number = {1},
pages = {3--4},
keywords = {Animals, Cell Communication, Cell Transdifferentiation, ferrandon, Hematopoietic Stem Cells, Humans, Immune System, M3i, Signal Transduction, Stem Cell Niche},
pubstate = {published},
tppubtype = {article}
}
Imler Jean-Luc, Ferrandon Dominique
[Innate immunity crowned 2011 Nobel Prize winner] Article de journal
Dans: Med Sci (Paris), vol. 27, p. 1019–24, 2011, ISSN: 0767-0974 (Print) 0767-0974 (Linking).
Liens | BibTeX | Étiquettes: *Immunity, *Nobel Prize, Biological, ferrandon, Genetic Association Studies, Humans, imler, Immunotherapy/methods/trends, Innate/genetics, M3i, Models, Molecular Targeted Therapy/trends, Seasons, Structure-Activity Relationship, Toll-Like Receptors/chemistry/genetics/isolation & purification/physiology
@article{imler_[innate_2011b,
title = {[Innate immunity crowned 2011 Nobel Prize winner]},
author = {Jean-Luc Imler and Dominique Ferrandon},
url = {http://dx.doi.org.gate1.inist.fr/10.1051/medsci/20112711020},
doi = {10.1051/medsci/20112711020},
issn = {0767-0974 (Print) 0767-0974 (Linking)},
year = {2011},
date = {2011-11-01},
journal = {Med Sci (Paris)},
volume = {27},
pages = {1019--24},
keywords = {*Immunity, *Nobel Prize, Biological, ferrandon, Genetic Association Studies, Humans, imler, Immunotherapy/methods/trends, Innate/genetics, M3i, Models, Molecular Targeted Therapy/trends, Seasons, Structure-Activity Relationship, Toll-Like Receptors/chemistry/genetics/isolation & purification/physiology},
pubstate = {published},
tppubtype = {article}
}
Limmer Stefanie, Haller Samantha, Drenkard Eliana, Lee Janice, Yu Shen, Kocks Christine, Ausubel Frederick M, Ferrandon Dominique
Pseudomonas aeruginosa RhlR is required to neutralize the cellular immune response in a Drosophila melanogaster oral infection model Article de journal
Dans: Proc. Natl. Acad. Sci. U.S.A., vol. 108, no. 42, p. 17378–17383, 2011, ISSN: 1091-6490.
Résumé | Liens | BibTeX | Étiquettes: Animal, Animals, Bacteremia, Bacterial Proteins, Cellular, Disease Models, ferrandon, Genes, Genetically Modified, Hemolymph, Host-Pathogen Interactions, Immunity, Insect, M3i, Mutation, Oral, Pseudomonas aeruginosa, Pseudomonas Infections, Quorum Sensing, Trans-Activators, Viral, Virulence
@article{limmer_pseudomonas_2011b,
title = {Pseudomonas aeruginosa RhlR is required to neutralize the cellular immune response in a Drosophila melanogaster oral infection model},
author = {Stefanie Limmer and Samantha Haller and Eliana Drenkard and Janice Lee and Shen Yu and Christine Kocks and Frederick M Ausubel and Dominique Ferrandon},
doi = {10.1073/pnas.1114907108},
issn = {1091-6490},
year = {2011},
date = {2011-10-01},
journal = {Proc. Natl. Acad. Sci. U.S.A.},
volume = {108},
number = {42},
pages = {17378--17383},
abstract = {An in-depth mechanistic understanding of microbial infection necessitates a molecular dissection of host-pathogen relationships. Both Drosophila melanogaster and Pseudomonas aeruginosa have been intensively studied. Here, we analyze the infection of D. melanogaster by P. aeruginosa by using mutants in both host and pathogen. We show that orally ingested P. aeruginosa crosses the intestinal barrier and then proliferates in the hemolymph, thereby causing the infected flies to die of bacteremia. Host defenses against ingested P. aeruginosa included an immune deficiency (IMD) response in the intestinal epithelium, systemic Toll and IMD pathway responses, and a cellular immune response controlling bacteria in the hemocoel. Although the observed cellular and intestinal immune responses appeared to act throughout the course of the infection, there was a late onset of the systemic IMD and Toll responses. In this oral infection model, P. aeruginosa PA14 did not require its type III secretion system or other well-studied virulence factors such as the two-component response regulator GacA or the protease AprA for virulence. In contrast, the quorum-sensing transcription factor RhlR, but surprisingly not LasR, played a key role in counteracting the cellular immune response against PA14, possibly at an early stage when only a few bacteria are present in the hemocoel. These results illustrate the power of studying infection from the dual perspective of host and pathogen by revealing that RhlR plays a more complex role during pathogenesis than previously appreciated.},
keywords = {Animal, Animals, Bacteremia, Bacterial Proteins, Cellular, Disease Models, ferrandon, Genes, Genetically Modified, Hemolymph, Host-Pathogen Interactions, Immunity, Insect, M3i, Mutation, Oral, Pseudomonas aeruginosa, Pseudomonas Infections, Quorum Sensing, Trans-Activators, Viral, Virulence},
pubstate = {published},
tppubtype = {article}
}
Limmer Stefanie, Quintin Jessica, Hetru Charles, Ferrandon Dominique
Virulence on the fly: Drosophila melanogaster as a model genetic organism to decipher host-pathogen interactions Article de journal
Dans: Curr Drug Targets, vol. 12, no. 7, p. 978–999, 2011, ISSN: 1873-5592.
Résumé | BibTeX | Étiquettes: Animal, Animals, Anti-Infective Agents, Disease Models, Drug Delivery Systems, Drug Design, Drug Resistance, ferrandon, Fungi, High-Throughput Screening Assays, Host-Pathogen Interactions, Humans, M3i, Microbial, Pseudomonas aeruginosa
@article{limmer_virulence_2011b,
title = {Virulence on the fly: Drosophila melanogaster as a model genetic organism to decipher host-pathogen interactions},
author = {Stefanie Limmer and Jessica Quintin and Charles Hetru and Dominique Ferrandon},
issn = {1873-5592},
year = {2011},
date = {2011-06-01},
journal = {Curr Drug Targets},
volume = {12},
number = {7},
pages = {978--999},
abstract = {To gain an in-depth grasp of infectious processes one has to know the specific interactions between the virulence factors of the pathogen and the host defense mechanisms. A thorough understanding is crucial for identifying potential new drug targets and designing drugs against which the pathogens might not develop resistance easily. Model organisms are a useful tool for this endeavor, thanks to the power of their genetics. Drosophila melanogaster is widely used to study host-pathogen interactions. Its basal immune response is well understood and is briefly reviewed here. Considerations relevant to choosing an adequate infection model are discussed. This review then focuses mainly on infections with two categories of pathogens, the well-studied Gram-negative bacterium Pseudomonas aeruginosa and infections by fungi of medical interest. These examples provide an overview over the current knowledge on Drosophila-pathogen interactions and illustrate the approaches that can be used to study those interactions. We also discuss the usefulness and limits of Drosophila infection models for studying specific host-pathogen interactions and high-throughput drug screening.},
keywords = {Animal, Animals, Anti-Infective Agents, Disease Models, Drug Delivery Systems, Drug Design, Drug Resistance, ferrandon, Fungi, High-Throughput Screening Assays, Host-Pathogen Interactions, Humans, M3i, Microbial, Pseudomonas aeruginosa},
pubstate = {published},
tppubtype = {article}
}
Aoun Richard Bou, Hetru Charles, Troxler Laurent, Doucet Daniel, Ferrandon Dominique, Matt Nicolas
Analysis of thioester-containing proteins during the innate immune response of Drosophila melanogaster Article de journal
Dans: J Innate Immun, vol. 3, no. 1, p. 52–64, 2011, ISSN: 1662-8128.
Résumé | Liens | BibTeX | Étiquettes: Animals, bioinformatic, DNA, Evolution, ferrandon, Gene Expression Regulation, Hemocytes, Immunity, In Situ Hybridization, Innate, M3i, matt, Molecular, Mutation, Phylogeny, Sequence Analysis
@article{bou_aoun_analysis_2011,
title = {Analysis of thioester-containing proteins during the innate immune response of Drosophila melanogaster},
author = {Richard Bou Aoun and Charles Hetru and Laurent Troxler and Daniel Doucet and Dominique Ferrandon and Nicolas Matt},
doi = {10.1159/000321554},
issn = {1662-8128},
year = {2011},
date = {2011-01-01},
journal = {J Innate Immun},
volume = {3},
number = {1},
pages = {52--64},
abstract = {Thioester-containing proteins (TEPs) are conserved proteins among insects that are thought to be involved in innate immunity. In Drosophila, the Tep family is composed of 6 genes named Tep1-Tep6. In this study, we investigated the phylogeny, expression pattern and roles of these genes in the host defense of Drosophila. Protostomian Tep genes are clustered in 3 distinct branches, 1 of which is specific to mosquitoes. Most D. melanogaster Tep genes are expressed in hemocytes, can be induced in the fat body, and are expressed in specific regions of the hypodermis. This expression pattern is consistent with a role in innate immunity. However, we find that TEP1, TEP2, and TEP4 are not strictly required in the body cavity to fight several bacterial and fungal infections. One possibility is that Drosophila TEPs act redundantly or that their absence can be compensated by other components of the immune response. TEPs may thus provide a subtle selective advantage during evolution. Alternatively, they may be required in host defense against specific as yet unidentified natural pathogens of Drosophila.},
keywords = {Animals, bioinformatic, DNA, Evolution, ferrandon, Gene Expression Regulation, Hemocytes, Immunity, In Situ Hybridization, Innate, M3i, matt, Molecular, Mutation, Phylogeny, Sequence Analysis},
pubstate = {published},
tppubtype = {article}
}
Meister Marie, Ferrandon Dominique
Immune cell transdifferentiation: a complex crosstalk between circulating immune cells and the haematopoietic niche Article de journal
Dans: EMBO Rep, vol. 13, p. 3–4, 2011, ISSN: 1469-3178 (Electronic) 1469-221X (Linking).
Liens | BibTeX | Étiquettes: ferrandon, M3i
@article{meister_immune_2011,
title = {Immune cell transdifferentiation: a complex crosstalk between circulating immune cells and the haematopoietic niche},
author = {Marie Meister and Dominique Ferrandon},
doi = {embor2011238 [pii] 10.1038/embor.2011.238},
issn = {1469-3178 (Electronic) 1469-221X (Linking)},
year = {2011},
date = {2011-01-01},
journal = {EMBO Rep},
volume = {13},
pages = {3--4},
keywords = {ferrandon, M3i},
pubstate = {published},
tppubtype = {article}
}
Lee Kwang-Zin, Ferrandon Dominique
Negative regulation of immune responses on the fly Article de journal
Dans: EMBO J., vol. 30, no. 6, p. 988–990, 2011, ISSN: 1460-2075.
Liens | BibTeX | Étiquettes: *Gene Expression Regulation, *Homeostasis, Animals, bacteria, Bacteria/*immunology, Biological, Drosophila melanogaster/*immunology, Drosophila Proteins/biosynthesis/metabolism, ferrandon, Gene Expression Regulation, Homeostasis, M3i, Mitogen-Activated Protein Kinases, Mitogen-Activated Protein Kinases/metabolism, Models, NF-kappa B, NF-kappa B/metabolism, ras Proteins, ras Proteins/metabolism, Receptor Protein-Tyrosine Kinases, Receptor Protein-Tyrosine Kinases/metabolism
@article{lee_negative_2011b,
title = {Negative regulation of immune responses on the fly},
author = {Kwang-Zin Lee and Dominique Ferrandon},
doi = {10.1038/emboj.2011.47},
issn = {1460-2075},
year = {2011},
date = {2011-01-01},
journal = {EMBO J.},
volume = {30},
number = {6},
pages = {988--990},
keywords = {*Gene Expression Regulation, *Homeostasis, Animals, bacteria, Bacteria/*immunology, Biological, Drosophila melanogaster/*immunology, Drosophila Proteins/biosynthesis/metabolism, ferrandon, Gene Expression Regulation, Homeostasis, M3i, Mitogen-Activated Protein Kinases, Mitogen-Activated Protein Kinases/metabolism, Models, NF-kappa B, NF-kappa B/metabolism, ras Proteins, ras Proteins/metabolism, Receptor Protein-Tyrosine Kinases, Receptor Protein-Tyrosine Kinases/metabolism},
pubstate = {published},
tppubtype = {article}
}
Nehme Nadine T, Quintin Jessica, Cho Ju Hyun, Lee Janice, Lafarge Marie-Céline, Kocks Christine, Ferrandon Dominique
Relative roles of the cellular and humoral responses in the Drosophila host defense against three gram-positive bacterial infections Article de journal
Dans: PLoS ONE, vol. 6, no. 3, p. e14743, 2011, ISSN: 1932-6203.
Résumé | Liens | BibTeX | Étiquettes: Animals, Antimicrobial Cationic Peptides, Carrier Proteins, Cell Surface, Cellular, Enterococcus faecalis, ferrandon, Gram-Positive Bacteria, Gram-Positive Bacterial Infections, Host-Pathogen Interactions, Humoral, Immunity, Innate, M3i, Micrococcus luteus, Opsonin Proteins, Phagocytosis, Receptors, Signal Transduction, Solubility, Staphylococcus aureus
@article{nehme_relative_2011b,
title = {Relative roles of the cellular and humoral responses in the Drosophila host defense against three gram-positive bacterial infections},
author = {Nadine T Nehme and Jessica Quintin and Ju Hyun Cho and Janice Lee and Marie-Céline Lafarge and Christine Kocks and Dominique Ferrandon},
doi = {10.1371/journal.pone.0014743},
issn = {1932-6203},
year = {2011},
date = {2011-01-01},
journal = {PLoS ONE},
volume = {6},
number = {3},
pages = {e14743},
abstract = {BACKGROUND: Two NF-kappaB signaling pathways, Toll and immune deficiency (imd), are required for survival to bacterial infections in Drosophila. In response to septic injury, these pathways mediate rapid transcriptional activation of distinct sets of effector molecules, including antimicrobial peptides, which are important components of a humoral defense response. However, it is less clear to what extent macrophage-like hemocytes contribute to host defense. METHODOLOGY/PRINCIPAL FINDINGS: In order to dissect the relative importance of humoral and cellular defenses after septic injury with three different gram-positive bacteria (Micrococcus luteus, Enterococcus faecalis, Staphylococcus aureus), we used latex bead pre-injection to ablate macrophage function in flies wildtype or mutant for various Toll and imd pathway components. We found that in all three infection models a compromised phagocytic system impaired fly survival--independently of concomitant Toll or imd pathway activation. Our data failed to confirm a role of the PGRP-SA and GNBP1 Pattern Recognition Receptors for phagocytosis of S. aureus. The Drosophila scavenger receptor Eater mediates the phagocytosis by hemocytes or S2 cells of E. faecalis and S. aureus, but not of M. luteus. In the case of M. luteus and E. faecalis, but not S. aureus, decreased survival due to defective phagocytosis could be compensated for by genetically enhancing the humoral immune response. CONCLUSIONS/SIGNIFICANCE: Our results underscore the fundamental importance of both cellular and humoral mechanisms in Drosophila immunity and shed light on the balance between these two arms of host defense depending on the invading pathogen.},
keywords = {Animals, Antimicrobial Cationic Peptides, Carrier Proteins, Cell Surface, Cellular, Enterococcus faecalis, ferrandon, Gram-Positive Bacteria, Gram-Positive Bacterial Infections, Host-Pathogen Interactions, Humoral, Immunity, Innate, M3i, Micrococcus luteus, Opsonin Proteins, Phagocytosis, Receptors, Signal Transduction, Solubility, Staphylococcus aureus},
pubstate = {published},
tppubtype = {article}
}
Matskevich Alexey A, Quintin Jessica, Ferrandon Dominique
The Drosophila PRR GNBP3 assembles effector complexes involved in antifungal defenses independently of its Toll-pathway activation function Article de journal
Dans: Eur. J. Immunol., vol. 40, no. 5, p. 1244–1254, 2010, ISSN: 1521-4141.
Résumé | Liens | BibTeX | Étiquettes: Agglutination, Animals, Beauveria, Beauveria/immunology, Candida albicans, Candida albicans/immunology, Carrier Proteins, Carrier Proteins/*immunology/pharmacology, Drosophila melanogaster/*immunology/microbiology, Drosophila Proteins/*immunology/pharmacology/physiology, Enzyme Activation, ferrandon, Fungal, Fungi, Fungi/*immunology, Hemolymph, Hemolymph/immunology, M3i, Melanins, Melanins/*physiology, Monophenol Monooxygenase, Monophenol Monooxygenase/physiology, Multiprotein Complexes, Multiprotein Complexes/physiology, Recombinant Fusion Proteins, Recombinant Fusion Proteins/pharmacology, Serpins, Serpins/physiology, Spores, Toll-Like Receptors, Toll-Like Receptors/immunology
@article{matskevich_drosophila_2010b,
title = {The Drosophila PRR GNBP3 assembles effector complexes involved in antifungal defenses independently of its Toll-pathway activation function},
author = {Alexey A Matskevich and Jessica Quintin and Dominique Ferrandon},
doi = {10.1002/eji.200940164},
issn = {1521-4141},
year = {2010},
date = {2010-05-01},
journal = {Eur. J. Immunol.},
volume = {40},
number = {5},
pages = {1244--1254},
abstract = {The Drosophila Toll-signaling pathway controls the systemic antifungal host response. Gram-negative binding protein 3 (GNBP3), a member of the beta-glucan recognition protein family senses fungal infections and activates this pathway. A second detection system perceives the activity of proteolytic fungal virulence factors and redundantly activates Toll. GNBP3(hades) mutant flies succumb more rapidly to Candida albicans and to entomopathogenic fungal infections than WT flies, despite normal triggering of the Toll pathway via the virulence detection system. These observations suggest that GNBP3 triggers antifungal defenses that are not dependent on activation of the Toll pathway. Here, we show that GNBP3 agglutinates fungal cells. Furthermore, it can activate melanization in a Toll-independent manner. Melanization is likely to be an essential defense against some fungal infections given that the entomopathogenic fungus Beauveria bassiana inhibits the activity of the main melanization enzymes, the phenol oxidases. Finally, we show that GNBP3 assembles "attack complexes", which comprise phenoloxidase and the necrotic serpin. We propose that Drosophila GNBP3 targets fungi immediately at the inception of the infection by bringing effector molecules in direct contact with the invading microorganisms.},
keywords = {Agglutination, Animals, Beauveria, Beauveria/immunology, Candida albicans, Candida albicans/immunology, Carrier Proteins, Carrier Proteins/*immunology/pharmacology, Drosophila melanogaster/*immunology/microbiology, Drosophila Proteins/*immunology/pharmacology/physiology, Enzyme Activation, ferrandon, Fungal, Fungi, Fungi/*immunology, Hemolymph, Hemolymph/immunology, M3i, Melanins, Melanins/*physiology, Monophenol Monooxygenase, Monophenol Monooxygenase/physiology, Multiprotein Complexes, Multiprotein Complexes/physiology, Recombinant Fusion Proteins, Recombinant Fusion Proteins/pharmacology, Serpins, Serpins/physiology, Spores, Toll-Like Receptors, Toll-Like Receptors/immunology},
pubstate = {published},
tppubtype = {article}
}
Pospisilik Andrew J, Schramek Daniel, Schnidar Harald, Cronin Shane J F, Nehme Nadine T, Zhang Xiaoyun, Knauf Claude, Cani Patrice D, Aumayr Karin, Todoric Jelena, Bayer Martina, Haschemi Arvand, Puviindran Vijitha, Tar Krisztina, Orthofer Michael, Neely Gregory G, Dietzl Georg, Manoukian Armen, Funovics Martin, Prager Gerhard, Wagner Oswald, Ferrandon Dominique, Aberger Fritz, Hui Chi-chung, Esterbauer Harald, Penninger Josef M
Drosophila genome-wide obesity screen reveals hedgehog as a determinant of brown versus white adipose cell fate Article de journal
Dans: Cell, vol. 140, no. 1, p. 148–160, 2010, ISSN: 1097-4172.
Résumé | Liens | BibTeX | Étiquettes: Adipocytes, Adipogenesis, Animals, Brown, Brown/metabolism, Cyclic AMP, Cyclic AMP/metabolism, Drosophila Proteins/*metabolism, ferrandon, Glucocorticoids, Glucocorticoids/metabolism, Hedgehog Proteins, Hedgehog Proteins/*metabolism, Humans, Knockout, M3i, Mice, Muscle Cells, Muscle Cells/metabolism, Obesity, Obesity/*genetics, Repressor Proteins, Repressor Proteins/genetics, White, White/metabolism
@article{pospisilik_drosophila_2010b,
title = {Drosophila genome-wide obesity screen reveals hedgehog as a determinant of brown versus white adipose cell fate},
author = {Andrew J Pospisilik and Daniel Schramek and Harald Schnidar and Shane J F Cronin and Nadine T Nehme and Xiaoyun Zhang and Claude Knauf and Patrice D Cani and Karin Aumayr and Jelena Todoric and Martina Bayer and Arvand Haschemi and Vijitha Puviindran and Krisztina Tar and Michael Orthofer and Gregory G Neely and Georg Dietzl and Armen Manoukian and Martin Funovics and Gerhard Prager and Oswald Wagner and Dominique Ferrandon and Fritz Aberger and Chi-chung Hui and Harald Esterbauer and Josef M Penninger},
doi = {10.1016/j.cell.2009.12.027},
issn = {1097-4172},
year = {2010},
date = {2010-01-01},
journal = {Cell},
volume = {140},
number = {1},
pages = {148--160},
abstract = {Over 1 billion people are estimated to be overweight, placing them at risk for diabetes, cardiovascular disease, and cancer. We performed a systems-level genetic dissection of adiposity regulation using genome-wide RNAi screening in adult Drosophila. As a follow-up, the resulting approximately 500 candidate obesity genes were functionally classified using muscle-, oenocyte-, fat-body-, and neuronal-specific knockdown in vivo and revealed hedgehog signaling as the top-scoring fat-body-specific pathway. To extrapolate these findings into mammals, we generated fat-specific hedgehog-activation mutant mice. Intriguingly, these mice displayed near total loss of white, but not brown, fat compartments. Mechanistically, activation of hedgehog signaling irreversibly blocked differentiation of white adipocytes through direct, coordinate modulation of early adipogenic factors. These findings identify a role for hedgehog signaling in white/brown adipocyte determination and link in vivo RNAi-based scanning of the Drosophila genome to regulation of adipocyte cell fate in mammals.},
keywords = {Adipocytes, Adipogenesis, Animals, Brown, Brown/metabolism, Cyclic AMP, Cyclic AMP/metabolism, Drosophila Proteins/*metabolism, ferrandon, Glucocorticoids, Glucocorticoids/metabolism, Hedgehog Proteins, Hedgehog Proteins/*metabolism, Humans, Knockout, M3i, Mice, Muscle Cells, Muscle Cells/metabolism, Obesity, Obesity/*genetics, Repressor Proteins, Repressor Proteins/genetics, White, White/metabolism},
pubstate = {published},
tppubtype = {article}
}
Mishima Yumiko, Quintin Jessica, Aimanianda Vishukumar, Kellenberger Christine, Coste Franck, Clavaud Cecile, Hetru Charles, Hoffmann Jules A, Latgé Jean-Paul, Ferrandon Dominique, Roussel Alain
The N-terminal domain of Drosophila Gram-negative binding protein 3 (GNBP3) defines a novel family of fungal pattern recognition receptors Article de journal
Dans: J. Biol. Chem., vol. 284, no. 42, p. 28687–28697, 2009, ISSN: 1083-351X.
Résumé | Liens | BibTeX | Étiquettes: Animals, beta-Glucans, Bombyx, Carrier Proteins, Crystallography, ferrandon, Fungal Proteins, Hemolymph, hoffmann, ligands, M3i, Molecular Conformation, Mutagenesis, Polysaccharides, Protein Structure, Secondary, Tertiary, X-Ray
@article{mishima_n-terminal_2009,
title = {The N-terminal domain of Drosophila Gram-negative binding protein 3 (GNBP3) defines a novel family of fungal pattern recognition receptors},
author = {Yumiko Mishima and Jessica Quintin and Vishukumar Aimanianda and Christine Kellenberger and Franck Coste and Cecile Clavaud and Charles Hetru and Jules A Hoffmann and Jean-Paul Latgé and Dominique Ferrandon and Alain Roussel},
doi = {10.1074/jbc.M109.034587},
issn = {1083-351X},
year = {2009},
date = {2009-10-01},
journal = {J. Biol. Chem.},
volume = {284},
number = {42},
pages = {28687--28697},
abstract = {Gram-negative binding protein 3 (GNBP3), a pattern recognition receptor that circulates in the hemolymph of Drosophila, is responsible for sensing fungal infection and triggering Toll pathway activation. Here, we report that GNBP3 N-terminal domain binds to fungi upon identifying long chains of beta-1,3-glucans in the fungal cell wall as a major ligand. Interestingly, this domain fails to interact strongly with short oligosaccharides. The crystal structure of GNBP3-Nter reveals an immunoglobulin-like fold in which the glucan binding site is masked by a loop that is highly conserved among glucan-binding proteins identified in several insect orders. Structure-based mutagenesis experiments reveal an essential role for this occluding loop in discriminating between short and long polysaccharides. The displacement of the occluding loop is necessary for binding and could explain the specificity of the interaction with long chain structured polysaccharides. This represents a novel mechanism for beta-glucan recognition.},
keywords = {Animals, beta-Glucans, Bombyx, Carrier Proteins, Crystallography, ferrandon, Fungal Proteins, Hemolymph, hoffmann, ligands, M3i, Molecular Conformation, Mutagenesis, Polysaccharides, Protein Structure, Secondary, Tertiary, X-Ray},
pubstate = {published},
tppubtype = {article}
}
Ferrandon Dominique
Host tolerance versus resistance and microbial virulence in the host-pathogen equation Article de journal
Dans: Cell Host Microbe, vol. 6, no. 3, p. 203–205, 2009, ISSN: 1934-6069.
Résumé | Liens | BibTeX | Étiquettes: Animals, ferrandon, Host-Pathogen Interactions, Immune Tolerance, M3i, Salmonella typhimurium, Virulence
@article{ferrandon_host_2009b,
title = {Host tolerance versus resistance and microbial virulence in the host-pathogen equation},
author = {Dominique Ferrandon},
doi = {10.1016/j.chom.2009.08.010},
issn = {1934-6069},
year = {2009},
date = {2009-09-01},
journal = {Cell Host Microbe},
volume = {6},
number = {3},
pages = {203--205},
abstract = {To deal with an infection, the organism resorts to nonmutually exclusive strategies: resistance, that is, neutralization or destruction of the pathogen; or tolerance, the ability to withstand damages inflicted by the pathogen or by host defense. In this issue of Cell Host & Microbe, Shinzawa et al. (2009) identify p38-mediated phagocytic encapsulation as a potential tolerance mechanism.},
keywords = {Animals, ferrandon, Host-Pathogen Interactions, Immune Tolerance, M3i, Salmonella typhimurium, Virulence},
pubstate = {published},
tppubtype = {article}
}
Cronin Shane J F, Nehme Nadine T, Limmer Stefanie, Liegeois Samuel, Pospisilik Andrew J, Schramek Daniel, Leibbrandt Andreas, de Simoes Ricardo Matos, Gruber Susanne, Puc Urszula, Ebersberger Ingo, Zoranovic Tamara, Neely Gregory G, von Haeseler Arndt, Ferrandon Dominique, Penninger Josef M
Genome-wide RNAi screen identifies genes involved in intestinal pathogenic bacterial infection Article de journal
Dans: Science, vol. 325, no. 5938, p. 340–343, 2009, ISSN: 1095-9203.
Résumé | Liens | BibTeX | Étiquettes: *Genome, *RNA Interference, Animal, Animals, Cell Proliferation, Drosophila melanogaster/*genetics/immunology/*microbiology, Drosophila Proteins/genetics/metabolism, Epithelial Cells, Epithelial Cells/cytology/physiology, ferrandon, Genetically Modified, Genome, Hemocytes, Hemocytes/immunology/metabolism/microbiology, Homeostasis, Immunity, Innate, Innate/*genetics, Insect, Intestinal Mucosa, Intestinal Mucosa/cytology/immunology/metabolism/microbiology, Janus Kinases, Janus Kinases/genetics/metabolism, M3i, Models, RNA Interference, Serratia Infections, Serratia Infections/genetics/*immunology/microbiology, Serratia marcescens, Serratia marcescens/*immunology/physiology, Signal Transduction, STAT Transcription Factors, STAT Transcription Factors/genetics/metabolism, Stem Cells, Stem Cells/cytology/physiology
@article{cronin_genome-wide_2009b,
title = {Genome-wide RNAi screen identifies genes involved in intestinal pathogenic bacterial infection},
author = {Shane J F Cronin and Nadine T Nehme and Stefanie Limmer and Samuel Liegeois and Andrew J Pospisilik and Daniel Schramek and Andreas Leibbrandt and Ricardo Matos de Simoes and Susanne Gruber and Urszula Puc and Ingo Ebersberger and Tamara Zoranovic and Gregory G Neely and Arndt von Haeseler and Dominique Ferrandon and Josef M Penninger},
doi = {10.1126/science.1173164},
issn = {1095-9203},
year = {2009},
date = {2009-01-01},
journal = {Science},
volume = {325},
number = {5938},
pages = {340--343},
abstract = {Innate immunity represents the first line of defense in animals. We report a genome-wide in vivo Drosophila RNA interference screen to uncover genes involved in susceptibility or resistance to intestinal infection with the bacterium Serratia marcescens. We first employed whole-organism gene suppression, followed by tissue-specific silencing in gut epithelium or hemocytes to identify several hundred genes involved in intestinal antibacterial immunity. Among the pathways identified, we showed that the JAK-STAT signaling pathway controls host defense in the gut by regulating stem cell proliferation and thus epithelial cell homeostasis. Therefore, we revealed multiple genes involved in antibacterial defense and the regulation of innate immunity.},
keywords = {*Genome, *RNA Interference, Animal, Animals, Cell Proliferation, Drosophila melanogaster/*genetics/immunology/*microbiology, Drosophila Proteins/genetics/metabolism, Epithelial Cells, Epithelial Cells/cytology/physiology, ferrandon, Genetically Modified, Genome, Hemocytes, Hemocytes/immunology/metabolism/microbiology, Homeostasis, Immunity, Innate, Innate/*genetics, Insect, Intestinal Mucosa, Intestinal Mucosa/cytology/immunology/metabolism/microbiology, Janus Kinases, Janus Kinases/genetics/metabolism, M3i, Models, RNA Interference, Serratia Infections, Serratia Infections/genetics/*immunology/microbiology, Serratia marcescens, Serratia marcescens/*immunology/physiology, Signal Transduction, STAT Transcription Factors, STAT Transcription Factors/genetics/metabolism, Stem Cells, Stem Cells/cytology/physiology},
pubstate = {published},
tppubtype = {article}
}
Roetzer Andreas, Gregori Christa, Jennings Ann Marie, Quintin Jessica, Ferrandon Dominique, Butler Geraldine, Kuchler Karl, Ammerer Gustav, Schüller Christoph
Candida glabrata environmental stress response involves Saccharomyces cerevisiae Msn2/4 orthologous transcription factors Article de journal
Dans: Mol. Microbiol., vol. 69, no. 3, p. 603–620, 2008, ISSN: 1365-2958.
Résumé | Liens | BibTeX | Étiquettes: Animals, Candida glabrata, Candidiasis, DNA-Binding Proteins, ferrandon, Fungal, Fungal Proteins, Gene Expression Profiling, Gene Expression Regulation, Genetic, Humans, M3i, Oligonucleotide Array Sequence Analysis, Osmotic Pressure, Regulon, Saccharomyces cerevisiae Proteins, Transcription, Transcription Factors, Virulence, Yeasts
@article{roetzer_candida_2008b,
title = {Candida glabrata environmental stress response involves Saccharomyces cerevisiae Msn2/4 orthologous transcription factors},
author = {Andreas Roetzer and Christa Gregori and Ann Marie Jennings and Jessica Quintin and Dominique Ferrandon and Geraldine Butler and Karl Kuchler and Gustav Ammerer and Christoph Schüller},
doi = {10.1111/j.1365-2958.2008.06301.x},
issn = {1365-2958},
year = {2008},
date = {2008-01-01},
journal = {Mol. Microbiol.},
volume = {69},
number = {3},
pages = {603--620},
abstract = {We determined the genome-wide environmental stress response (ESR) expression profile of Candida glabrata, a human pathogen related to Saccharomyces cerevisiae. Despite different habitats, C. glabrata, S. cerevisiae, Schizosaccharomyces pombe and Candida albicans have a qualitatively similar ESR. We investigate the function of the C. glabrata syntenic orthologues to the ESR transcription factor Msn2. The C. glabrata orthologues CgMsn2 and CgMsn4 contain a motif previously referred to as HD1 (homology domain 1) also present in Msn2 orthologues from fungi closely related to S. cerevisiae. We show that regions including this motif confer stress-regulated intracellular localization when expressed in S. cerevisiae. Site-directed mutagenesis confirms that nuclear export of CgMsn2 in C. glabrata requires an intact HD1. Transcript profiles of CgMsn2/4 mutants and CgMsn2 overexpression strains show that they regulate a part of the CgESR. CgMsn2 complements a S. cerevisiae msn2 null mutant and in stressed C. glabrata cells, rapidly translocates from the cytosol to the nucleus. CgMsn2 is required for full resistance against severe osmotic stress and rapid and full induction of trehalose synthesis genes (TPS1, TPS2). Constitutive activation of CgMsn2 is detrimental for C. glabrata. These results establish an Msn2-regulated general stress response in C. glabrata.},
keywords = {Animals, Candida glabrata, Candidiasis, DNA-Binding Proteins, ferrandon, Fungal, Fungal Proteins, Gene Expression Profiling, Gene Expression Regulation, Genetic, Humans, M3i, Oligonucleotide Array Sequence Analysis, Osmotic Pressure, Regulon, Saccharomyces cerevisiae Proteins, Transcription, Transcription Factors, Virulence, Yeasts},
pubstate = {published},
tppubtype = {article}
}
Ferrandon Dominique, Imler Jean-Luc, Hetru Charles, Hoffmann Jules A
The Drosophila systemic immune response: sensing and signalling during bacterial and fungal infections Article de journal
Dans: Nat Rev Immunol, vol. 7, p. 862–74, 2007.
Résumé | BibTeX | Étiquettes: Animals, Bacterial Infections/*immunology/microbiology, Drosophila melanogaster/genetics/*immunology/microbiology, ferrandon, hoffmann, imler, Immunity, M3i, Mycoses/*immunology/microbiology, Natural/genetics, Signal Transduction/genetics/*immunology
@article{ferrandon_drosophila_2007b,
title = {The Drosophila systemic immune response: sensing and signalling during bacterial and fungal infections},
author = {Dominique Ferrandon and Jean-Luc Imler and Charles Hetru and Jules A Hoffmann},
year = {2007},
date = {2007-11-01},
journal = {Nat Rev Immunol},
volume = {7},
pages = {862--74},
abstract = {A hallmark of the potent, multifaceted antimicrobial defence of Drosophila melanogaster is the challenge-induced synthesis of several families of antimicrobial peptides by cells in the fat body. The basic mechanisms of recognition of various types of microbial infections by the adult fly are now understood, often in great detail. We have further gained valuable insight into the infection-induced gene reprogramming by nuclear factor-kappaB (NF-kappaB) family members under the dependence of complex intracellular signalling cascades. The striking parallels between the adult fly response and mammalian innate immune defences described below point to a common ancestry and validate the relevance of the fly defence as a paradigm for innate immunity.},
keywords = {Animals, Bacterial Infections/*immunology/microbiology, Drosophila melanogaster/genetics/*immunology/microbiology, ferrandon, hoffmann, imler, Immunity, M3i, Mycoses/*immunology/microbiology, Natural/genetics, Signal Transduction/genetics/*immunology},
pubstate = {published},
tppubtype = {article}
}
Ferrandon Dominique
Ubiquitin-proteasome: pallbearer carries the deceased to the grave Article de journal
Dans: Immunity, vol. 27, no. 4, p. 541–544, 2007, ISSN: 1074-7613.
Résumé | Liens | BibTeX | Étiquettes: *Models, Animals, Apoptosis, Apoptosis/*physiology, ferrandon, Immunological, M3i, Macrophages, Macrophages/immunology/metabolism, Models, Phagocytosis, Phagocytosis/*physiology, Proteasome Endopeptidase Complex, Proteasome Endopeptidase Complex/*metabolism, ubiquitin, Ubiquitin/*metabolism
@article{ferrandon_ubiquitin-proteasome:_2007b,
title = {Ubiquitin-proteasome: pallbearer carries the deceased to the grave},
author = {Dominique Ferrandon},
doi = {10.1016/j.immuni.2007.10.003},
issn = {1074-7613},
year = {2007},
date = {2007-10-01},
journal = {Immunity},
volume = {27},
number = {4},
pages = {541--544},
abstract = {Phagocytosis is a complex process that involves multiple cellular functions. In this issue of Immunity, Silva et al. (2007) report that a protein ubiquitylation complex and the proteasome are required for the clearance of apoptotic cells in Drosophila.},
keywords = {*Models, Animals, Apoptosis, Apoptosis/*physiology, ferrandon, Immunological, M3i, Macrophages, Macrophages/immunology/metabolism, Models, Phagocytosis, Phagocytosis/*physiology, Proteasome Endopeptidase Complex, Proteasome Endopeptidase Complex/*metabolism, ubiquitin, Ubiquitin/*metabolism},
pubstate = {published},
tppubtype = {article}
}
Ferrandon Dominique, Gottar Marie, Gobert Vanessa
[New mechanism for detection of infections using the innate immune system of animals] Article de journal
Dans: Med Sci (Paris), vol. 23, no. 8-9, p. 707–709, 2007, ISSN: 0767-0974.
Liens | BibTeX | Étiquettes: Animal, Animals, Drosophila/immunology, ferrandon, Gram-Positive Bacteria, Gram-Positive Bacteria/pathogenicity, Gram-Positive Bacterial Infections, Gram-Positive Bacterial Infections/immunology, Humans, Immune System, infection, Infection/*diagnosis/*immunology, M3i, Models
@article{ferrandon_[new_2007b,
title = {[New mechanism for detection of infections using the innate immune system of animals]},
author = {Dominique Ferrandon and Marie Gottar and Vanessa Gobert},
doi = {10.1051/medsci/20072389707},
issn = {0767-0974},
year = {2007},
date = {2007-09-01},
journal = {Med Sci (Paris)},
volume = {23},
number = {8-9},
pages = {707--709},
keywords = {Animal, Animals, Drosophila/immunology, ferrandon, Gram-Positive Bacteria, Gram-Positive Bacteria/pathogenicity, Gram-Positive Bacterial Infections, Gram-Positive Bacterial Infections/immunology, Humans, Immune System, infection, Infection/*diagnosis/*immunology, M3i, Models},
pubstate = {published},
tppubtype = {article}
}
Nehme Nadine T, Liégeois Samuel, Kele Beatrix, Giammarinaro Philippe, Pradel Elizabeth, Hoffmann Jules A, Ewbank Jonathan J, Ferrandon Dominique
A model of bacterial intestinal infections in Drosophila melanogaster Article de journal
Dans: PLoS Pathog., vol. 3, no. 11, p. e173, 2007, ISSN: 1553-7374.
Résumé | Liens | BibTeX | Étiquettes: Animal, Animals, Disease Models, Electron, ferrandon, fluorescence, Hemolymph, hoffmann, Host-Pathogen Interactions, Immunohistochemistry, Intestines, M3i, Microscopy, Reverse Transcriptase Polymerase Chain Reaction, Serratia Infections, Serratia marcescens, Transmission
@article{nehme_model_2007b,
title = {A model of bacterial intestinal infections in Drosophila melanogaster},
author = {Nadine T Nehme and Samuel Liégeois and Beatrix Kele and Philippe Giammarinaro and Elizabeth Pradel and Jules A Hoffmann and Jonathan J Ewbank and Dominique Ferrandon},
doi = {10.1371/journal.ppat.0030173},
issn = {1553-7374},
year = {2007},
date = {2007-01-01},
journal = {PLoS Pathog.},
volume = {3},
number = {11},
pages = {e173},
abstract = {Serratia marcescens is an entomopathogenic bacterium that opportunistically infects a wide range of hosts, including humans. In a model of septic injury, if directly introduced into the body cavity of Drosophila, this pathogen is insensitive to the host's systemic immune response and kills flies in a day. We find that S. marcescens resistance to the Drosophila immune deficiency (imd)-mediated humoral response requires the bacterial lipopolysaccharide O-antigen. If ingested by Drosophila, bacteria cross the gut and penetrate the body cavity. During this passage, the bacteria can be observed within the cells of the intestinal epithelium. In such an oral infection model, the flies succumb to infection only after 6 days. We demonstrate that two complementary host defense mechanisms act together against such food-borne infection: an antimicrobial response in the intestine that is regulated by the imd pathway and phagocytosis by hemocytes of bacteria that have escaped into the hemolymph. Interestingly, bacteria present in the hemolymph elicit a systemic immune response only when phagocytosis is blocked. Our observations support a model wherein peptidoglycan fragments released during bacterial growth activate the imd pathway and do not back a proposed role for phagocytosis in the immune activation of the fat body. Thanks to the genetic tools available in both host and pathogen, the molecular dissection of the interactions between S. marcescens and Drosophila will provide a useful paradigm for deciphering intestinal pathogenesis.},
keywords = {Animal, Animals, Disease Models, Electron, ferrandon, fluorescence, Hemolymph, hoffmann, Host-Pathogen Interactions, Immunohistochemistry, Intestines, M3i, Microscopy, Reverse Transcriptase Polymerase Chain Reaction, Serratia Infections, Serratia marcescens, Transmission},
pubstate = {published},
tppubtype = {article}
}
Gottar Marie, Gobert Vanessa, Matskevich Alexey A, Reichhart Jean-Marc, Wang Chengshu, Butt Tariq M, Belvin Marcia, Hoffmann Jules A, Ferrandon Dominique
Dual detection of fungal infections in Drosophila via recognition of glucans and sensing of virulence factors Article de journal
Dans: Cell, vol. 127, no. 7, p. 1425–1437, 2006, ISSN: 0092-8674.
Résumé | Liens | BibTeX | Étiquettes: Animals, Antibody Formation, Beauveria, Candida albicans, Carrier Proteins, Cellular, ferrandon, Glucans, hoffmann, Immunity, Immunological, M3i, Metarhizium, Models, Polysaccharides, reichhart, Serine Endopeptidases, Signal Transduction, Virulence Factors
@article{gottar_dual_2006,
title = {Dual detection of fungal infections in Drosophila via recognition of glucans and sensing of virulence factors},
author = {Marie Gottar and Vanessa Gobert and Alexey A Matskevich and Jean-Marc Reichhart and Chengshu Wang and Tariq M Butt and Marcia Belvin and Jules A Hoffmann and Dominique Ferrandon},
doi = {10.1016/j.cell.2006.10.046},
issn = {0092-8674},
year = {2006},
date = {2006-12-01},
journal = {Cell},
volume = {127},
number = {7},
pages = {1425--1437},
abstract = {The Drosophila immune system discriminates between various types of infections and activates appropriate signal transduction pathways to combat the invading microorganisms. The Toll pathway is required for the host response against fungal and most Gram-positive bacterial infections. The sensing of Gram-positive bacteria is mediated by the pattern recognition receptors PGRP-SA and GNBP1 that cooperate to detect the presence of infections in the host. Here, we report that GNBP3 is a pattern recognition receptor that is required for the detection of fungal cell wall components. Strikingly, we find that there is a second, parallel pathway acting jointly with GNBP3. The Drosophila Persephone protease activates the Toll pathway when proteolytically matured by the secreted fungal virulence factor PR1. Thus, the detection of fungal infections in Drosophila relies both on the recognition of invariant microbial patterns and on monitoring the effects of virulence factors on the host.},
keywords = {Animals, Antibody Formation, Beauveria, Candida albicans, Carrier Proteins, Cellular, ferrandon, Glucans, hoffmann, Immunity, Immunological, M3i, Metarhizium, Models, Polysaccharides, reichhart, Serine Endopeptidases, Signal Transduction, Virulence Factors},
pubstate = {published},
tppubtype = {article}
}
Kocks Christine, Cho Ju Hyun, Nehme Nadine, Ulvila Johanna, Pearson Alan M, Meister Marie, Strom Charles, Conto Stephanie L, Hetru Charles, Stuart Lynda M, Stehle Thilo, Hoffmann Jules A, Reichhart Jean-Marc, Ferrandon Dominique, Rämet Mika, Ezekowitz Alan R B
Eater, a transmembrane protein mediating phagocytosis of bacterial pathogens in Drosophila Article de journal
Dans: Cell, vol. 123, no. 2, p. 335–346, 2005, ISSN: 0092-8674.
Résumé | Liens | BibTeX | Étiquettes: Amino Acid, Amino Acid Motifs, Animals, Bacterial Infections, Cell Surface, Embryo, Escherichia coli, ferrandon, Flow Cytometry, Frameshift Mutation, Genes, Histidine, hoffmann, In Situ Hybridization, Insect, Insect Proteins, M3i, Macrophages, Membrane Proteins, messenger, Nonmammalian, Open Reading Frames, Phagocytosis, Receptors, reichhart, RNA, RNA Interference, Sequence Homology, Serratia marcescens
@article{kocks_eater_2005,
title = {Eater, a transmembrane protein mediating phagocytosis of bacterial pathogens in Drosophila},
author = {Christine Kocks and Ju Hyun Cho and Nadine Nehme and Johanna Ulvila and Alan M Pearson and Marie Meister and Charles Strom and Stephanie L Conto and Charles Hetru and Lynda M Stuart and Thilo Stehle and Jules A Hoffmann and Jean-Marc Reichhart and Dominique Ferrandon and Mika Rämet and Alan R B Ezekowitz},
doi = {10.1016/j.cell.2005.08.034},
issn = {0092-8674},
year = {2005},
date = {2005-10-01},
journal = {Cell},
volume = {123},
number = {2},
pages = {335--346},
abstract = {Phagocytosis is a complex, evolutionarily conserved process that plays a central role in host defense against infection. We have identified a predicted transmembrane protein, Eater, which is involved in phagocytosis in Drosophila. Transcriptional silencing of the eater gene in a macrophage cell line led to a significant reduction in the binding and internalization of bacteria. Moreover, the N terminus of the Eater protein mediated direct microbial binding which could be inhibited with scavenger receptor ligands, acetylated, and oxidized low-density lipoprotein. In vivo, eater expression was restricted to blood cells. Flies lacking the eater gene displayed normal responses in NF-kappaB-like Toll and IMD signaling pathways but showed impaired phagocytosis and decreased survival after bacterial infection. Our results suggest that Eater is a major phagocytic receptor for a broad range of bacterial pathogens in Drosophila and provide a powerful model to address the role of phagocytosis in vivo.},
keywords = {Amino Acid, Amino Acid Motifs, Animals, Bacterial Infections, Cell Surface, Embryo, Escherichia coli, ferrandon, Flow Cytometry, Frameshift Mutation, Genes, Histidine, hoffmann, In Situ Hybridization, Insect, Insect Proteins, M3i, Macrophages, Membrane Proteins, messenger, Nonmammalian, Open Reading Frames, Phagocytosis, Receptors, reichhart, RNA, RNA Interference, Sequence Homology, Serratia marcescens},
pubstate = {published},
tppubtype = {article}
}
Ferrandon Dominique, Royet Julien
La réponse immunitaire chez la Drosophile Article de journal
Dans: Regards sur la biochimie, vol. 1, p. 27–33, 2004.
BibTeX | Étiquettes: ferrandon, M3i
@article{ferrandon_reponse_2004b,
title = {La réponse immunitaire chez la Drosophile},
author = {Dominique Ferrandon and Julien Royet},
year = {2004},
date = {2004-01-01},
journal = {Regards sur la biochimie},
volume = {1},
pages = {27--33},
keywords = {ferrandon, M3i},
pubstate = {published},
tppubtype = {article}
}
Ferrandon Dominique, Imler Jean-Luc, Hoffmann Jules A
Sensing infection in Drosophila: Toll and beyond Article de journal
Dans: Semin Immunol, vol. 16, p. 43–53, 2004, ISSN: 1044-5323.
Résumé | BibTeX | Étiquettes: Animals, Carrier Proteins/chemistry/immunology/physiology, Cell Surface/immunology/*physiology, Drosophila Proteins/chemistry/immunology/*physiology, Drosophila/genetics/*immunology/microbiology, ferrandon, Fungi/immunology, Gene Expression Regulation, Gram-Negative Bacterial Infections/immunology, Gram-Positive Bacterial Infections/immunology, hoffmann, imler, Immunological, Insect Proteins/chemistry/immunology/physiology, M3i, Models, Non-U.S. Gov't, Receptors, Signal Transduction/immunology/physiology, Support
@article{ferrandon_sensing_2004b,
title = {Sensing infection in Drosophila: Toll and beyond},
author = {Dominique Ferrandon and Jean-Luc Imler and Jules A Hoffmann},
issn = {1044-5323},
year = {2004},
date = {2004-01-01},
journal = {Semin Immunol},
volume = {16},
pages = {43--53},
abstract = {Drosophila has evolved a potent immune system that is somewhat adapted to the nature of infections through the selective activation of either one of two NF-kappa B-like signalling pathways, the Toll and IMD (Immune deficiency) pathways. In contrast to the mammalian system, the Toll receptor does not act as a pattern recognition receptor (PRR) but as a cytokine receptor. The sensing of microbial infections is achieved by at least four PRRs that belong to two distinct families: the peptidoglycan recognition proteins (PGRPs) and the Gram-negative binding proteins (GNBPs)/beta-glucan recognition proteins (beta GRPs).},
keywords = {Animals, Carrier Proteins/chemistry/immunology/physiology, Cell Surface/immunology/*physiology, Drosophila Proteins/chemistry/immunology/*physiology, Drosophila/genetics/*immunology/microbiology, ferrandon, Fungi/immunology, Gene Expression Regulation, Gram-Negative Bacterial Infections/immunology, Gram-Positive Bacterial Infections/immunology, hoffmann, imler, Immunological, Insect Proteins/chemistry/immunology/physiology, M3i, Models, Non-U.S. Gov't, Receptors, Signal Transduction/immunology/physiology, Support},
pubstate = {published},
tppubtype = {article}
}
Imler Jean-Luc, Ferrandon Dominique, Royet Julien, Reichhart Jean-Marc, Hetru Charles, Hoffmann Jules A
Toll-dependent and Toll-independent immune responses in Drosophila Article de journal
Dans: Journal of Endotoxin Research, vol. 10, no. 4, p. 241–246, 2004, ISSN: 0968-0519.
Résumé | Liens | BibTeX | Étiquettes: Acute-Phase Proteins, Animals, Blood Proteins, Cell Surface, ferrandon, hoffmann, imler, Insect Proteins, M3i, Membrane Glycoproteins, Receptors, reichhart, Toll-Like Receptor 5, Toll-Like Receptors, Up-Regulation
@article{imler_toll-dependent_2004,
title = {Toll-dependent and Toll-independent immune responses in Drosophila},
author = {Jean-Luc Imler and Dominique Ferrandon and Julien Royet and Jean-Marc Reichhart and Charles Hetru and Jules A Hoffmann},
doi = {10.1179/096805104225005887},
issn = {0968-0519},
year = {2004},
date = {2004-01-01},
journal = {Journal of Endotoxin Research},
volume = {10},
number = {4},
pages = {241--246},
abstract = {The multifaceted response of the fruitfly Drosophila melanogaster to infection by a wide range of microbes is complex and remarkably efficient. Its most prominent aspect is the immune-inducible expression of a set of potent antimicrobial peptides. Genetic analysis of the regulation of the genes encoding these peptides has led to the identification of the receptor Toll as an essential component of the fly's host defense system. In addition, these studies have revealed that the response to Gram-negative bacterial infections involves Toll-independent mechanisms, and that the sensing of infection involves two structurally distinct sets of molecules--the PGRPs and the GNBPs/betaGRPs.},
keywords = {Acute-Phase Proteins, Animals, Blood Proteins, Cell Surface, ferrandon, hoffmann, imler, Insect Proteins, M3i, Membrane Glycoproteins, Receptors, reichhart, Toll-Like Receptor 5, Toll-Like Receptors, Up-Regulation},
pubstate = {published},
tppubtype = {article}
}
Gobert Vanessa, Gottar Marie, Matskevich Alexey A, Rutschmann Sophie, Royet Julien, Belvin Marcia, Hoffmann Jules A, Ferrandon Dominique
Dual activation of the Drosophila toll pathway by two pattern recognition receptors Article de journal
Dans: Science, vol. 302, no. 5653, p. 2126–2130, 2003, ISSN: 1095-9203.
Résumé | Liens | BibTeX | Étiquettes: Animals, Carrier Proteins, Cell Surface, DNA Transposable Elements,