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Gressler M, Heddergott C, N'Go IC, Renga G, Oikonomou V, Moretti S, Coddeville B, Gaifem J, Silvestre R, Romani L, Latgé JP, Fontaine T. Definition of the Anti-inflammatory Oligosaccharides Derived From the Galactosaminogalactan (GAG) From Aspergillus fumigatus. Front Cell Infect Microbiol 2019; 9:365. [PMID: 31781511 PMCID: PMC6851199 DOI: 10.3389/fcimb.2019.00365] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 10/08/2019] [Indexed: 12/13/2022] Open
Abstract
Galactosaminogalactan (GAG) is an insoluble aminosugar polymer produced by Aspergillus fumigatus and has anti-inflammatory properties. Here, the minimum glycosidic sequences required for the induction of IL-1Ra by peripheral blood mononuclear cells (PBMCs) was investigated. Using chemical degradation of native GAG to isolate soluble oligomers, we have found that the de-N-acetylation of galactosamine residues and the size of oligomer are critical for the in vitro immune response. A minimal oligomer size of 20 galactosamine residues is required for the anti-inflammatory response but the presence of galactose residues is not necessary. In a Dextran sulfate induced colitis mouse model, a fraction of de-N-acetylated oligomers of 13 < dp < 20 rescue inflammatory damage like the native GAG polymer in an IL-1Ra dependent pathway. Our results demonstrate the therapeutic suitability of water-soluble GAG oligosaccharides in IL-1 mediated hyper-inflammatory diseases and suggest that α-1,4-galactosamine oligomers chemically synthesized could represent new anti-inflammatory glycodrugs.
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Affiliation(s)
| | | | - Inés C N'Go
- Unité des Aspergillus, Institut Pasteur, Paris, France
| | - Giorgia Renga
- Department of Experimental Medicine, Università degli Studi di Perugia, Perugia, Italy
| | - Vasilis Oikonomou
- Department of Experimental Medicine, Università degli Studi di Perugia, Perugia, Italy
| | - Silvia Moretti
- Department of Experimental Medicine, Università degli Studi di Perugia, Perugia, Italy
| | - Bernadette Coddeville
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF) UMR 8576 CNRS, Université de Lille, Lille, France
| | - Joana Gaifem
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Portugal
| | - Ricardo Silvestre
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Portugal
| | - Luigina Romani
- Department of Experimental Medicine, Università degli Studi di Perugia, Perugia, Italy
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Scott J, Sueiro-Olivares M, Ahmed W, Heddergott C, Zhao C, Thomas R, Bromley M, Latgé JP, Krappmann S, Fowler S, Bignell E, Amich J. Pseudomonas aeruginosa-Derived Volatile Sulfur Compounds Promote Distal Aspergillus fumigatus Growth and a Synergistic Pathogen-Pathogen Interaction That Increases Pathogenicity in Co-infection. Front Microbiol 2019; 10:2311. [PMID: 31649650 PMCID: PMC6794476 DOI: 10.3389/fmicb.2019.02311] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 09/23/2019] [Indexed: 12/15/2022] Open
Abstract
Pathogen-pathogen interactions in polymicrobial infections are known to directly impact, often to worsen, disease outcomes. For example, co-infection with Pseudomonas aeruginosa and Aspergillus fumigatus, respectively the most common bacterial and fungal pathogens isolated from cystic fibrosis (CF) airways, leads to a worsened prognosis. Recent studies of in vitro microbial cross-talk demonstrated that P. aeruginosa-derived volatile sulfur compounds (VSCs) can promote A. fumigatus growth in vitro. However, the mechanistic basis of such cross-talk and its physiological relevance during co-infection remains unknown. In this study we combine genetic approaches and GC-MS-mediated volatile analysis to show that A. fumigatus assimilates VSCs via cysteine (CysB)- or homocysteine (CysD)-synthase. This process is essential for utilization of VSCs as sulfur sources, since P. aeruginosa-derived VSCs trigger growth of A. fumigatus wild-type, but not of a ΔcysBΔcysD mutant, on sulfur-limiting media. P. aeruginosa produces VSCs when infecting Galleria mellonella and co-infection with A. fumigatus in this model results in a synergistic increase in mortality and of fungal and bacterial burdens. Interestingly, the increment in mortality is much greater with the A. fumigatus wild-type than with the ΔcysBΔcysD mutant. Therefore, A. fumigatus' ability to assimilate P. aeruginosa derived VSCs significantly triggers a synergistic association that increases the pathobiology of infection. Finally, we show that P. aeruginosa can promote fungal growth when growing on substrates that resemble the lung environment, which suggests that this volatile based synergism is likely to occur during co-infection of the human respiratory airways.
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Affiliation(s)
- Jennifer Scott
- Manchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Monica Sueiro-Olivares
- Manchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Waqar Ahmed
- Respiratory and Allergy Research Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, University of Manchester, Manchester, United Kingdom.,Manchester Institute of Biotechnology, University of Manchester, Manchester, United Kingdom
| | | | - Can Zhao
- Manchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Riba Thomas
- Manchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Michael Bromley
- Manchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | | | - Sven Krappmann
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Stephen Fowler
- Respiratory and Allergy Research Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, University of Manchester, Manchester, United Kingdom.,NIHR Manchester Biomedical Research Centre - Manchester Academic Health Science Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, United Kingdom
| | - Elaine Bignell
- Manchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Jorge Amich
- Manchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
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Henry C, Fontaine T, Heddergott C, Robinet P, Aimanianda V, Beau R, Beauvais A, Mouyna I, Prevost MC, Fekkar A, Zhao Y, Perlin D, Latgé JP. Biosynthesis of cell wall mannan in the conidium and the mycelium ofAspergillusfumigatus. Cell Microbiol 2016; 18:1881-1891. [DOI: 10.1111/cmi.12665] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 09/06/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Christine Henry
- Département de Mycologie; Unité des Aspergillus; Paris Cedex France
| | - Thierry Fontaine
- Département de Mycologie; Unité des Aspergillus; Paris Cedex France
| | | | - Pauline Robinet
- Département de Mycologie; Unité des Aspergillus; Paris Cedex France
| | | | - Remi Beau
- Département de Mycologie; Unité des Aspergillus; Paris Cedex France
| | - Anne Beauvais
- Département de Mycologie; Unité des Aspergillus; Paris Cedex France
| | - Isabelle Mouyna
- Département de Mycologie; Unité des Aspergillus; Paris Cedex France
| | | | - Arnaud Fekkar
- Service de Parasitologie Mycologie; Hôpital de La Pitié-Salpêtrière; Paris France
| | - Yanan Zhao
- Public Health Research Institute, New Jersey Medical School, Rutgers; The State University of New Jersey; Newark New Jersey USA
| | - David Perlin
- Public Health Research Institute, New Jersey Medical School, Rutgers; The State University of New Jersey; Newark New Jersey USA
| | - Jean-Paul Latgé
- Département de Mycologie; Unité des Aspergillus; Paris Cedex France
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Wallwey C, Heddergott C, Xie X, Brakhage AA, Li SM. Genome mining reveals the presence of a conserved gene cluster for the biosynthesis of ergot alkaloid precursors in the fungal family Arthrodermataceae. Microbiology (Reading) 2012; 158:1634-1644. [PMID: 22403186 DOI: 10.1099/mic.0.056796-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Genome sequence analysis of different fungi of the family Arthrodermataceae revealed the presence of a gene cluster consisting of five genes with high sequence similarity to those involved in the early common steps of ergot alkaloid biosynthesis in Aspergillus fumigatus and Claviceps purpurea. To provide evidence that this cluster is involved in ergot alkaloid biosynthesis, the gene ARB_04646 of the fungus Arthroderma benhamiae was cloned into pQE60 and expressed in Escherichia coli. Enzyme assays with the soluble tetrameric His(6)-tagged protein proved unequivocally that the deduced gene product, here termed ChaDH, catalysed the oxidation of chanoclavine-I in the presence of NAD(+), resulting in the formation of chanoclavine-I aldehyde. The enzyme product was unequivocally proven by NMR and MS analyses. Therefore, ChaDH functions as a chanoclavine-I dehydrogenase. K(m) values for chanoclavine-I and NAD(+) were 0.09 and 0.36 mM, respectively. Turnover number was 0.76 s(-1).
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Affiliation(s)
- Christiane Wallwey
- Philipps-Universität Marburg, Institut für Pharmazeutische Biologie und Biotechnologie, Deutschhausstraße 17a, 35037 Marburg, Germany
| | - Christoph Heddergott
- Abteilung für Molekulare und Angewandte Mikrobiologie, Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie e.V.-Hans-Knöll-Institut (HKI), Beutenbergstraße 11a, 07745 Jena, Germany
| | - Xiulan Xie
- Philipps-Universität Marburg, Fachbereich Chemie, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Axel A Brakhage
- Institut für Mikrobiologie, Friedrich-Schiller-Universität Jena, Philosophenweg 12, 07743 Jena, Germany
- Abteilung für Molekulare und Angewandte Mikrobiologie, Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie e.V.-Hans-Knöll-Institut (HKI), Beutenbergstraße 11a, 07745 Jena, Germany
| | - Shu-Ming Li
- Philipps-Universität Marburg, Institut für Pharmazeutische Biologie und Biotechnologie, Deutschhausstraße 17a, 35037 Marburg, Germany
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Burmester A, Shelest E, Glöckner G, Heddergott C, Schindler S, Staib P, Heidel A, Felder M, Petzold A, Szafranski K, Feuermann M, Pedruzzi I, Priebe S, Groth M, Winkler R, Li W, Kniemeyer O, Schroeckh V, Hertweck C, Hube B, White TC, Platzer M, Guthke R, Heitman J, Wöstemeyer J, Zipfel PF, Monod M, Brakhage AA. Comparative and functional genomics provide insights into the pathogenicity of dermatophytic fungi. Genome Biol 2011; 12:R7. [PMID: 21247460 PMCID: PMC3091305 DOI: 10.1186/gb-2011-12-1-r7] [Citation(s) in RCA: 160] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 11/09/2010] [Accepted: 01/19/2011] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Millions of humans and animals suffer from superficial infections caused by a group of highly specialized filamentous fungi, the dermatophytes, which exclusively infect keratinized host structures. To provide broad insights into the molecular basis of the pathogenicity-associated traits, we report the first genome sequences of two closely phylogenetically related dermatophytes, Arthroderma benhamiae and Trichophyton verrucosum, both of which induce highly inflammatory infections in humans. RESULTS 97% of the 22.5 megabase genome sequences of A. benhamiae and T. verrucosum are unambiguously alignable and collinear. To unravel dermatophyte-specific virulence-associated traits, we compared sets of potentially pathogenicity-associated proteins, such as secreted proteases and enzymes involved in secondary metabolite production, with those of closely related onygenales (Coccidioides species) and the mould Aspergillus fumigatus. The comparisons revealed expansion of several gene families in dermatophytes and disclosed the peculiarities of the dermatophyte secondary metabolite gene sets. Secretion of proteases and other hydrolytic enzymes by A. benhamiae was proven experimentally by a global secretome analysis during keratin degradation. Molecular insights into the interaction of A. benhamiae with human keratinocytes were obtained for the first time by global transcriptome profiling. Given that A. benhamiae is able to undergo mating, a detailed comparison of the genomes further unraveled the genetic basis of sexual reproduction in this species. CONCLUSIONS Our results enlighten the genetic basis of fundamental and putatively virulence-related traits of dermatophytes, advancing future research on these medically important pathogens.
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Affiliation(s)
- Anke Burmester
- Department of Molecular and Applied Microbiology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Beutenbergstrasse 11a, Jena, 07745, Germany
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