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Houšt’ J, Palyzová A, Pluháček T, Novák J, Marešová H, Hubáček P, Dobiáš R, Stevens DA, Guegan H, Gangneux JP, Havlíček V. Exploring the Siderophore Portfolio for Mass Spectrometry-Based Diagnosis of Scedosporiosis and Lomentosporiosis. ACS OMEGA 2024; 9:44815-44824. [PMID: 39524635 PMCID: PMC11541790 DOI: 10.1021/acsomega.4c08257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2024] [Revised: 10/06/2024] [Accepted: 10/08/2024] [Indexed: 11/16/2024]
Abstract
Scedosporium apiospermum and Lomentospora prolificans secrete siderophores (iron scavengers) during hyphal proliferation. Siderophores are virulence factors and potential clinical biomarkers of invasive scedosporiosis and lomentosporiosis. Both strains secreted a uniform spectrum of siderophores, including coprogen B (CopB), N α-methyl-coprogen B, dimethyl-coprogen, and ferricrocin, with N α-methyl-coprogen B being the fastest secreted and most abundant coprogen. Under iron and zinc restriction, reflecting a nutrient-limited host environment, L. prolificans secreted 45 times more CopB than did S. apiospermum, presumably contributing to its higher virulence. This robust mobilization of CopB was further enhanced by zinc surplus. Additionally, two novel cyclic peptides, Scedocyclin A and B, were characterized inScedosporium boydii using the de novo sequencing tool CycloBranch. Utilizing matrix-assisted laser desorption/ionization, the portfolio of coprogens detected had limits of detection and quantitation of 4.9 and 14.6 fmol/spot in complex matrices, respectively, making them strong candidates for the next-generation, routine diagnosis of invasive scedosporiosis and lomentosporiosis through the Biotyper siderotyping.
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Affiliation(s)
- Jiří Houšt’
- Laboratory
of Molecular Structure Characterization, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czechia
- Department
of Analytical Chemistry, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, 779 00 Olomouc, Czechia
| | - Andrea Palyzová
- Laboratory
of Molecular Structure Characterization, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czechia
| | - Tomáš Pluháček
- Laboratory
of Molecular Structure Characterization, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czechia
- Department
of Analytical Chemistry, Faculty of Science, Palacký University in Olomouc, 17. listopadu 1192/12, 779 00 Olomouc, Czechia
| | - Jiří Novák
- Laboratory
of Molecular Structure Characterization, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czechia
- Department
of Software Engineering, Faculty of Information Technology, Czech Technical University in Prague, Thákurova 9, 160 00 Prague, Czechia
| | - Helena Marešová
- Laboratory
of Molecular Structure Characterization, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czechia
| | - Petr Hubáček
- Department
of the Medical Microbiology, second Faculty of Medicine, Charles University and Motol University Hospital, V Úvalu 84, 150 06 Prague, Czechia
| | - Radim Dobiáš
- Department
of Bacteriology and Mycology, National Reference Laboratory for Mycological
Diagnostics, Public Health Institute in
Ostrava, Partyzánské
náměstí 2633/7, 702 00 Ostrava, Czechia
- Institute
of Laboratory Medicine, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Czechia
| | - David A. Stevens
- Division
of Infectious Diseases and Geographic Medicine, Stanford University
School of Medicine, Foundation for Research
in Infectious Diseases, P.O. Box 2734, Saratoga, California 95070, United States
| | - Hélène Guegan
- Division
of Parasitology and Mycology, European Excellence Center in Medical
Mycology (ECMM EC), National Reference Center on Chronic Aspergillosis, Rennes University Hospital, Inserm UMR_S 1085 Irset, 2 Rue Henri le Guilloux, 35033 Rennes, France
| | - Jean-Pierre Gangneux
- Division
of Parasitology and Mycology, European Excellence Center in Medical
Mycology (ECMM EC), National Reference Center on Chronic Aspergillosis, Rennes University Hospital, Inserm UMR_S 1085 Irset, 2 Rue Henri le Guilloux, 35033 Rennes, France
| | - Vladimír Havlíček
- Laboratory
of Molecular Structure Characterization, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czechia
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Neoh CF, Chen SCA, Lanternier F, Tio SY, Halliday CL, Kidd SE, Kong DCM, Meyer W, Hoenigl M, Slavin MA. Scedosporiosis and lomentosporiosis: modern perspectives on these difficult-to-treat rare mold infections. Clin Microbiol Rev 2024; 37:e0000423. [PMID: 38551323 PMCID: PMC11237582 DOI: 10.1128/cmr.00004-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024] Open
Abstract
SUMMARYAlthough Scedosporium species and Lomentospora prolificans are uncommon causes of invasive fungal diseases (IFDs), these infections are associated with high mortality and are costly to treat with a limited armamentarium of antifungal drugs. In light of recent advances, including in the area of new antifungals, the present review provides a timely and updated overview of these IFDs, with a focus on the taxonomy, clinical epidemiology, pathogenesis and host immune response, disease manifestations, diagnosis, antifungal susceptibility, and treatment. An expansion of hosts at risk for these difficult-to-treat infections has emerged over the last two decades given the increased use of, and broader population treated with, immunomodulatory and targeted molecular agents as well as wider adoption of antifungal prophylaxis. Clinical presentations differ not only between genera but also across the different Scedosporium species. L. prolificans is intrinsically resistant to most currently available antifungal agents, and the prognosis of immunocompromised patients with lomentosporiosis is poor. Development of, and improved access to, diagnostic modalities for early detection of these rare mold infections is paramount for timely targeted antifungal therapy and surgery if indicated. New antifungal agents (e.g., olorofim, fosmanogepix) with novel mechanisms of action and less cross-resistance to existing classes, availability of formulations for oral administration, and fewer drug-drug interactions are now in late-stage clinical trials, and soon, could extend options to treat scedosporiosis/lomentosporiosis. Much work remains to increase our understanding of these infections, especially in the pediatric setting. Knowledge gaps for future research are highlighted in the review.
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Affiliation(s)
- Chin Fen Neoh
- National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Australia
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia
| | - Sharon C-A Chen
- Centre for Infectious Diseases and Microbiology Laboratory Services, New South Wales Health Pathology, Westmead Hospital, Sydney, Australia
- The University of Sydney, Sydney, Australia
- Department of Infectious Diseases, Westmead Hospital, Sydney, Australia
| | - Fanny Lanternier
- Service de Maladies Infectieuses et Tropicales, Hôpital universitaire Necker-Enfants malades, Paris, France
- National Reference Center for Invasive Mycoses and Antifungals, Translational Mycology research group, Mycology Department, Institut Pasteur, Université Paris Cité, Paris, France
| | - Shio Yen Tio
- National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Australia
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia
| | - Catriona L Halliday
- Centre for Infectious Diseases and Microbiology Laboratory Services, New South Wales Health Pathology, Westmead Hospital, Sydney, Australia
| | - Sarah E Kidd
- National Mycology Reference Centre, SA Pathology, Adelaide, Australia
- School of Biological Sciences, Faculty of Sciences, University of Adelaide, Adelaide, Australia
| | - David C M Kong
- National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Australia
- The National Centre for Antimicrobial Stewardship, The Peter Doherty Institute for Infections and Immunity, Melbourne, Australia
- Centre for Medicine Use and Safety, Monash Institute of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Melbourne, Australia
- School of Medicine, Deakin University, Waurn Ponds, Geelong, Australia
| | - Wieland Meyer
- The University of Sydney, Sydney, Australia
- Westerdijk Fungal Biodiversity Institute, Utrecht, the Netherlands
| | - Martin Hoenigl
- Division of Infectious Diseases, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- Translational Medical Mycology Research Group, ECMM Excellence Center for Clinical Mycology, Medical University of Graz, Graz, Austria
| | - Monica A Slavin
- National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Australia
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia
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French KS, Chukwuma E, Linshitz I, Namba K, Duckworth OW, Cubeta MA, Baars O. Inactivation of siderophore iron-chelating moieties by the fungal wheat root symbiont Pyrenophora biseptata. ENVIRONMENTAL MICROBIOLOGY REPORTS 2024; 16:e13234. [PMID: 38240404 PMCID: PMC10866069 DOI: 10.1111/1758-2229.13234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 12/28/2023] [Indexed: 02/15/2024]
Abstract
We investigated the ability of four plant and soil-associated fungi to modify or degrade siderophore structures leading to reduced siderophore iron-affinity in iron-limited and iron-replete cultures. Pyrenophora biseptata, a melanized fungus from wheat roots, was effective in inactivating siderophore iron-chelating moieties. In the supernatant solution, the tris-hydroxamate siderophore desferrioxamine B (DFOB) underwent a stepwise reduction of the three hydroxamate groups in DFOB to amides leading to a progressive loss in iron affinity. A mechanism is suggested based on the formation of transient ferrous iron followed by reduction of the siderophore hydroxamate groups during fungal high-affinity reductive iron uptake. P. biseptata also produced its own tris-hydroxamate siderophores (neocoprogen I and II, coprogen and dimerum acid) in iron-limited media and we observed loss of hydroxamate chelating groups during incubation in a manner analogous to DFOB. A redox-based reaction was also involved with the tris-catecholate siderophore protochelin in which oxidation of the catechol groups to quinones was observed. The new siderophore inactivating activity of the wheat symbiont P. biseptata is potentially widespread among fungi with implications for the availability of iron to plants and the surrounding microbiome in siderophore-rich environments.
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Affiliation(s)
- Katie S. French
- Department of Entomology and Plant PathologyNorth Carolina State University, Center for Integrated Fungal ResearchRaleighNorth CarolinaUSA
- Present address:
Department of Soil ScienceUniversity of ArkansasFayettevilleArkansasUSA
| | - Emmanuel Chukwuma
- Department of ChemistryNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Ilan Linshitz
- Department of BiologyUniversity of MarylandCollege ParkMarylandUSA
| | - Kosuke Namba
- Department of Pharmaceutical SciencesTokushima UniversityTokushimaJapan
| | - Owen W. Duckworth
- Department of Crop and Soil SciencesNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Marc A. Cubeta
- Department of Entomology and Plant PathologyNorth Carolina State University, Center for Integrated Fungal ResearchRaleighNorth CarolinaUSA
| | - Oliver Baars
- Department of Entomology and Plant PathologyNorth Carolina State University, Center for Integrated Fungal ResearchRaleighNorth CarolinaUSA
- Department of ChemistryNorth Carolina State UniversityRaleighNorth CarolinaUSA
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Akter A, Lyons O, Mehra V, Isenman H, Abbate V. Radiometal chelators for infection diagnostics. FRONTIERS IN NUCLEAR MEDICINE (LAUSANNE, SWITZERLAND) 2023; 2:1058388. [PMID: 37388440 PMCID: PMC7614707 DOI: 10.3389/fnume.2022.1058388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Infection of native tissues or implanted devices is common, but clinical diagnosis is frequently difficult and currently available noninvasive tests perform poorly. Immunocompromised individuals (for example transplant recipients, or those with cancer) are at increased risk. No imaging test in clinical use can specifically identify infection, or accurately differentiate bacterial from fungal infections. Commonly used [18F]fluorodeoxyglucose (18FDG) positron emission computed tomography (PET/CT) is sensitive for infection, but limited by poor specificity because increased glucose uptake may also indicate inflammation or malignancy. Furthermore, this tracer provides no indication of the type of infective agent (bacterial, fungal, or parasitic). Imaging tools that directly and specifically target microbial pathogens are highly desirable to improve noninvasive infection diagnosis and localization. A growing field of research is exploring the utility of radiometals and their chelators (siderophores), which are small molecules that bind radiometals and form a stable complex allowing sequestration by microbes. This radiometal-chelator complex can be directed to a specific microbial target in vivo, facilitating anatomical localization by PET or single photon emission computed tomography. Additionally, bifunctional chelators can further conjugate therapeutic molecules (e.g., peptides, antibiotics, antibodies) while still bound to desired radiometals, combining specific imaging with highly targeted antimicrobial therapy. These novel therapeutics may prove a useful complement to the armamentarium in the global fight against antimicrobial resistance. This review will highlight current state of infection imaging diagnostics and their limitations, strategies to develop infection-specific diagnostics, recent advances in radiometal-based chelators for microbial infection imaging, challenges, and future directions to improve targeted diagnostics and/or therapeutics.
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Affiliation(s)
- Asma Akter
- Department of Analytical, Environmental and Forensic Sciences, King’s College London, London, United Kingdom
| | - Oliver Lyons
- Vascular Endovascular and Transplant Surgery, Christchurch Public Hospital, Christchurch, New Zealand
- Department of Surgery, University of Otago, Christchurch, New Zealand
| | - Varun Mehra
- Department of Hematology, King’s College Hospital NHS Foundation Trust, London, United Kingdom
| | - Heather Isenman
- Department of Infectious Diseases, General Medicine, Christchurch Hospital, Christchurch, New Zealand
| | - Vincenzo Abbate
- Department of Analytical, Environmental and Forensic Sciences, King’s College London, London, United Kingdom
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5
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Abstract
PURPOSE OF REVIEW Invasive fungal diseases (IFDs) such as invasive aspergillosis continue to be associated with high morbidity and mortality while presenting significant diagnostic challenges. Siderophores are high-affinity Fe 3+ chelators produced by Aspergillus spp. and other fungi capable of causing IFD. Previously evaluated as a treatment target in mucormycosis, siderophores have recently emerged as new diagnostic targets for invasive aspergillosis and scedosporiosis. Here, we review the diagnostic potential of siderophores for diagnosing IFD, with a particular focus on invasive aspergillosis. RECENT FINDINGS The major secreted siderophore of A. fumigatus , triacetylfusarinine C (TAFC), has been successfully detected by mass spectrometry in serum, BALF and urine of patients with invasive aspergillosis, with promising sensitivities and specificities in single-centre studies. Intracellular uptake of siderophores has also been utilized for imaging, wherein fungal siderophores have been conjugated with the easy-to-produce radioactive isotope gallium-68 ( 68 Ga) to visualize infected body sites in PET. For the Scedosporium apiospermum complex, another siderophore N(α)-methyl coprogen B has been shown promising as a marker for airway colonization in early studies. SUMMARY Siderophores and particular TAFC have the potential to revolutionize diagnostic pathways for invasive aspergillosis and other mould infections. However, larger multicentre studies are needed to confirm these promising performances. Methods that allow rapid and cost-effective measurements in routine clinical practice need to be developed, particularly when TAFC is used as a biomarker in patient specimens.
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Mello TP, Barcellos IC, Aor AC, Branquinha MH, Santos ALS. Extracellularly Released Molecules by the Multidrug-Resistant Fungal Pathogens Belonging to the Scedosporium Genus: An Overview Focused on Their Ecological Significance and Pathogenic Relevance. J Fungi (Basel) 2022; 8:1172. [PMID: 36354939 PMCID: PMC9693033 DOI: 10.3390/jof8111172] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 09/10/2024] Open
Abstract
The multidrug-resistant species belonging to the Scedosporium genus are well recognized as saprophytic filamentous fungi found mainly in human impacted areas and that emerged as human pathogens in both immunocompetent and immunocompromised individuals. It is well recognized that some fungi are ubiquitous organisms that produce an enormous amount of extracellular molecules, including enzymes and secondary metabolites, as part of their basic physiology in order to satisfy their several biological processes. In this context, the molecules secreted by Scedosporium species are key weapons for successful colonization, nutrition and maintenance in both host and environmental sites. These biologically active released molecules have central relevance on fungal survival when colonizing ecological places contaminated with hydrocarbons, as well as during human infection, particularly contributing to the invasion/evasion of host cells and tissues, besides escaping from the cellular and humoral host immune responses. Based on these relevant premises, the present review compiled the published data reporting the main secreted molecules by Scedosporium species, which operate important physiopathological events associated with pathogenesis, diagnosis, antimicrobial activity and bioremediation of polluted environments.
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Affiliation(s)
- Thaís P. Mello
- Laboratório de Estudos Avançados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Centro de Ciências da Saúde (CCS), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-901, Brazil
| | - Iuri C. Barcellos
- Laboratório de Estudos Avançados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Centro de Ciências da Saúde (CCS), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-901, Brazil
| | - Ana Carolina Aor
- Laboratório de Estudos Avançados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Centro de Ciências da Saúde (CCS), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-901, Brazil
| | - Marta H. Branquinha
- Laboratório de Estudos Avançados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Centro de Ciências da Saúde (CCS), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-901, Brazil
- Rede Micologia RJ—Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), Rio de Janeiro 21941-901, Brazil
| | - André L. S. Santos
- Laboratório de Estudos Avançados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Centro de Ciências da Saúde (CCS), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-901, Brazil
- Rede Micologia RJ—Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), Rio de Janeiro 21941-901, Brazil
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Khan W, Regmi O, Panda BP. Enrichment of dimerumic acid in
Monascus
‐fermented rice and its in vivo antioxidant activity. FOOD FRONTIERS 2021. [DOI: 10.1002/fft2.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Washim Khan
- Microbial and Pharmaceutical Biotechnology Laboratory, Department of Pharmacognosy and Phytochemistry School of Pharmaceutical Education and Research Jamia Hamdard New Delhi India
| | - Omkar Regmi
- Microbial and Pharmaceutical Biotechnology Laboratory, Department of Pharmacognosy and Phytochemistry School of Pharmaceutical Education and Research Jamia Hamdard New Delhi India
| | - Bibhu Prasad Panda
- Microbial and Pharmaceutical Biotechnology Laboratory, Department of Pharmacognosy and Phytochemistry School of Pharmaceutical Education and Research Jamia Hamdard New Delhi India
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Staerck C, Yaakoub H, Vandeputte P, Tabiasco J, Godon C, Gastebois A, Giraud S, Guillemette T, Calenda A, Delneste Y, Fleury M, Bouchara JP. The Glycosylphosphatidylinositol-Anchored Superoxide Dismutase of Scedosporium apiospermum Protects the Conidia from Oxidative Stress. J Fungi (Basel) 2021; 7:575. [PMID: 34356954 PMCID: PMC8304446 DOI: 10.3390/jof7070575] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/13/2021] [Accepted: 07/13/2021] [Indexed: 02/07/2023] Open
Abstract
Scedosporium species are common fungal pathogens in patients with cystic fibrosis (CF). To colonize the CF lungs, fungi must cope with the host immune response, especially the reactive oxygen species (ROS) released by phagocytic cells. To this aim, pathogens have developed various antioxidant systems, including superoxide dismutases (SODs) which constitute the first-line protection against oxidative stress. Interestingly, one of the S. apiospermum SOD-encoding genes (SODD gene) exhibits a glycosylphosphatidylinositol (GPI) anchor-binding site and encodes a conidial-specific surface SOD. In this study, a SODDΔ mutant was engineered from a non-homologous end joining-deficient strain (KU70Δ) of S. apiospermum. Compared to its parent strain, the double mutant KU70Δ/SODDΔ exhibited increased susceptibility to various oxidizing agents and triazole antifungals. In addition, the loss of SodD resulted in an increased intracellular killing of the conidia by M1 macrophages derived from human blood monocytes, suggesting the involvement of this superoxide dismutase in the evasion to the host defenses. Nevertheless, one cannot disregard an indirect role of the enzyme in the synthesis or assembly of the cell wall components since transmission electron microscopic analysis revealed a thickening of the inner cell wall layer of the conidia. Further studies are needed to confirm the role of this enzyme in the pathogenesis of Scedosporium infections, including the production of a recombinant protein and study of its protective effect against the infection in a mouse model of scedosporiosis.
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Affiliation(s)
- Cindy Staerck
- Université d’Angers, Université de Bretagne Occidentale, CHU Angers, Groupe d’Etude des Interactions Hôte-Pathogène (GEIHP, EA3142), SFR ICAT, F-49000 Angers, France; (C.S.); (H.Y.); (P.V.); (C.G.); (A.G.); (S.G.); (A.C.); (M.F.)
| | - Hajar Yaakoub
- Université d’Angers, Université de Bretagne Occidentale, CHU Angers, Groupe d’Etude des Interactions Hôte-Pathogène (GEIHP, EA3142), SFR ICAT, F-49000 Angers, France; (C.S.); (H.Y.); (P.V.); (C.G.); (A.G.); (S.G.); (A.C.); (M.F.)
| | - Patrick Vandeputte
- Université d’Angers, Université de Bretagne Occidentale, CHU Angers, Groupe d’Etude des Interactions Hôte-Pathogène (GEIHP, EA3142), SFR ICAT, F-49000 Angers, France; (C.S.); (H.Y.); (P.V.); (C.G.); (A.G.); (S.G.); (A.C.); (M.F.)
| | - Julie Tabiasco
- Université d’Angers, Université de Nantes, CHU Angers, Inserm, CRCINA, SFR ICAT, F-49000 Angers, France; (J.T.); (Y.D.)
| | - Charlotte Godon
- Université d’Angers, Université de Bretagne Occidentale, CHU Angers, Groupe d’Etude des Interactions Hôte-Pathogène (GEIHP, EA3142), SFR ICAT, F-49000 Angers, France; (C.S.); (H.Y.); (P.V.); (C.G.); (A.G.); (S.G.); (A.C.); (M.F.)
| | - Amandine Gastebois
- Université d’Angers, Université de Bretagne Occidentale, CHU Angers, Groupe d’Etude des Interactions Hôte-Pathogène (GEIHP, EA3142), SFR ICAT, F-49000 Angers, France; (C.S.); (H.Y.); (P.V.); (C.G.); (A.G.); (S.G.); (A.C.); (M.F.)
| | - Sandrine Giraud
- Université d’Angers, Université de Bretagne Occidentale, CHU Angers, Groupe d’Etude des Interactions Hôte-Pathogène (GEIHP, EA3142), SFR ICAT, F-49000 Angers, France; (C.S.); (H.Y.); (P.V.); (C.G.); (A.G.); (S.G.); (A.C.); (M.F.)
| | - Thomas Guillemette
- Université d’Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000 Angers, France;
| | - Alphonse Calenda
- Université d’Angers, Université de Bretagne Occidentale, CHU Angers, Groupe d’Etude des Interactions Hôte-Pathogène (GEIHP, EA3142), SFR ICAT, F-49000 Angers, France; (C.S.); (H.Y.); (P.V.); (C.G.); (A.G.); (S.G.); (A.C.); (M.F.)
| | - Yves Delneste
- Université d’Angers, Université de Nantes, CHU Angers, Inserm, CRCINA, SFR ICAT, F-49000 Angers, France; (J.T.); (Y.D.)
| | - Maxime Fleury
- Université d’Angers, Université de Bretagne Occidentale, CHU Angers, Groupe d’Etude des Interactions Hôte-Pathogène (GEIHP, EA3142), SFR ICAT, F-49000 Angers, France; (C.S.); (H.Y.); (P.V.); (C.G.); (A.G.); (S.G.); (A.C.); (M.F.)
| | - Jean-Philippe Bouchara
- Université d’Angers, Université de Bretagne Occidentale, CHU Angers, Groupe d’Etude des Interactions Hôte-Pathogène (GEIHP, EA3142), SFR ICAT, F-49000 Angers, France; (C.S.); (H.Y.); (P.V.); (C.G.); (A.G.); (S.G.); (A.C.); (M.F.)
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9
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A Summary on Up-To-Date Research on Fungal Siderophores on Disease, Treatment and Pathogenicity Based on Text Mining, Bioinformatics and Experts’ Opinion. Fungal Biol 2021. [DOI: 10.1007/978-3-030-53077-8_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Le Govic Y, Havlíček V, Capilla J, Luptáková D, Dumas D, Papon N, Le Gal S, Bouchara JP, Vandeputte P. Synthesis of the Hydroxamate Siderophore N α-Methylcoprogen B in Scedosporium apiospermum Is Mediated by sidD Ortholog and Is Required for Virulence. Front Cell Infect Microbiol 2020; 10:587909. [PMID: 33194829 PMCID: PMC7655970 DOI: 10.3389/fcimb.2020.587909] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/08/2020] [Indexed: 02/04/2023] Open
Abstract
Scedosporium species rank second among the filamentous fungi capable to colonize chronically the respiratory tract of patients with cystic fibrosis (CF). Nevertheless, there is little information on the mechanisms underpinning their virulence. Iron acquisition is critical for the growth and pathogenesis of many bacterial and fungal genera that chronically inhabit the CF lungs. In a previous study, we showed the presence in the genome of Scedosporium apiospermum of several genes relevant for iron uptake, notably SAPIO_CDS2806, an ortholog of sidD, which drives the synthesis of the extracellular hydroxamate-type siderophore fusarinine C (FsC) and its derivative triacetylfusarinine C (TAFC) in Aspergillus fumigatus. Here, we demonstrate that Scedosporium apiospermum sidD gene is required for production of an excreted siderophore, namely, Nα-methylcoprogen B, which also belongs to the hydroxamate family. Blockage of the synthesis of Nα-methylcoprogen B by disruption of the sidD gene resulted in the lack of fungal growth under iron limiting conditions. Still, growth of ΔsidD mutants could be restored by supplementation of the culture medium with a culture filtrate from the parent strain, but not from the mutants. Furthermore, the use of xenosiderophores as the sole source of iron revealed that S. apiospermum can acquire the iron using the hydroxamate siderophores ferrichrome or ferrioxamine, i.e., independently of Nα-methylcoprogen B production. Conversely, Nα-methylcoprogen B is mandatory for iron acquisition from pyoverdine, a mixed catecholate-hydroxamate siderophore. Finally, the deletion of sidD resulted in the loss of virulence in a murine model of scedosporiosis. Our findings demonstrate that S. apiospermum sidD gene drives the synthesis of a unique extracellular, hydroxamate-type iron chelator, which is essential for fungal growth and virulence. This compound scavenges iron from pyoverdine, which might explain why S. apiospermum and Pseudomonas aeruginosa are rarely found simultaneously in the CF lungs.
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Affiliation(s)
- Yohann Le Govic
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université Angers, Université Brest, Angers, France.,Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Angers, France
| | - Vladimir Havlíček
- Institute of Microbiology of the Czech Academy of Sciences, Prague, Czechia
| | - Javier Capilla
- Unitat de Microbiologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili and Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
| | - Dominika Luptáková
- Institute of Microbiology of the Czech Academy of Sciences, Prague, Czechia
| | - Dayana Dumas
- Unitat de Microbiologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili and Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
| | - Nicolas Papon
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université Angers, Université Brest, Angers, France
| | - Solène Le Gal
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université Angers, Université Brest, Angers, France.,Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Brest, France
| | - Jean-Philippe Bouchara
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université Angers, Université Brest, Angers, France.,Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Angers, France
| | - Patrick Vandeputte
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université Angers, Université Brest, Angers, France.,Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Angers, France
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11
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Bouchara JP, Le Govic Y, Kabbara S, Cimon B, Zouhair R, Hamze M, Papon N, Nevez G. Advances in understanding and managing Scedosporium respiratory infections in patients with cystic fibrosis. Expert Rev Respir Med 2019; 14:259-273. [PMID: 31868041 DOI: 10.1080/17476348.2020.1705787] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: Considered for a long time to be exclusively responsible for chronic localized infections, fungi of the genus Scedosporium have recently received a renewed interest because of their recognition as common colonizing agents of the respiratory tract of patients with cystic fibrosis, and of the description of severe disseminated infections in patients undergoing lung transplantation. Recently, several studies have been carried out on these opportunistic pathogens, which led to some advances in the understanding of their pathogenic mechanisms and in the biological diagnosis of the airway colonization/respiratory infections caused by these fungi.Areas covered: From a bibliographic search on the Pubmed database, we summarize the current knowledge about the taxonomy of Scedosporium species, the epidemiology of these fungi and their pathogenic mechanisms, and present the improvements in the detection of the airway colonization and diagnosis of Scedosporium respiratory infections, the difficulties in their therapeutic management, and the antifungal drugs in development.Expert opinion: As described in this review, many advances have been made regarding the taxonomy and ecology of Scedosporium species or the molecular determinants of their pathogenicity, but also in the management of Scedosporium infections, particularly by improving the biological diagnostic and publishing evidence for the efficacy of combined therapy.
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Affiliation(s)
- Jean-Philippe Bouchara
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), UNIV Angers, UNIV Brest, SFR 4208 ICAT, Angers, France
| | - Yohann Le Govic
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), UNIV Angers, UNIV Brest, SFR 4208 ICAT, Angers, France
| | - Samar Kabbara
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), UNIV Angers, UNIV Brest, SFR 4208 ICAT, Angers, France
| | - Bernard Cimon
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), UNIV Angers, UNIV Brest, SFR 4208 ICAT, Angers, France
| | - Rachid Zouhair
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), UNIV Angers, UNIV Brest, SFR 4208 ICAT, Angers, France
| | - Monzer Hamze
- Laboratoire Microbiologie Santé et Environnement (LMSE), Ecole Doctorale des Sciences et de Technologie, Faculté de Santé Publique, Université Libanaise, Tripoli, Liban
| | - Nicolas Papon
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), UNIV Angers, UNIV Brest, SFR 4208 ICAT, Angers, France
| | - Gilles Nevez
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), UNIV Angers, UNIV Brest, Brest, France
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12
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Le Govic Y, Papon N, Le Gal S, Bouchara JP, Vandeputte P. Non-ribosomal Peptide Synthetase Gene Clusters in the Human Pathogenic Fungus Scedosporium apiospermum. Front Microbiol 2019; 10:2062. [PMID: 31551992 PMCID: PMC6737921 DOI: 10.3389/fmicb.2019.02062] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 08/21/2019] [Indexed: 11/13/2022] Open
Abstract
Scedosporium species are opportunistic fungi which preferentially affect patients with underlying conditions such as immunosuppression or cystic fibrosis (CF). While being the second most common molds capable to chronically colonize the CF lungs, the natural history of infection remains unclear. In filamentous fungi, a broad range of important secondary metabolites that are recognized as virulence factors are produced by multidomain non-ribosomal peptide synthetases (NRPSs). The aim of this study was to provide a global in silico analysis of NRPS-encoding genes based on the recently sequenced Scedosporium apiospermum genome. We uncovered a total of nine NRPS genes, of which six exhibited sufficient similarity scores with other fungal NRPSs to predict the class of the generated peptide: siderophores (n = 2), epidithiodioxopiperazines (n = 2), and cyclopeptides (n = 2). Phylogenetic trees based on the multiple alignments of adenylation (A) domain sequences corroborated these findings. Nevertheless, substrate prediction methods for NRPS A-domains tended to fail, thus questioning about the exact nature of the peptide produced. Further studies should be undertaken since NRPSs, which are not synthesized by human cells, could represent attractive therapeutic targets.
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Affiliation(s)
- Yohann Le Govic
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université d'Angers, Angers, France.,Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Université d'Angers, Angers, France
| | - Nicolas Papon
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université d'Angers, Angers, France
| | - Solène Le Gal
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université de Bretagne Occidentale, Brest, France.,Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Université de Bretagne Occidentale, Brest, France
| | - Jean-Philippe Bouchara
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université d'Angers, Angers, France.,Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Université d'Angers, Angers, France
| | - Patrick Vandeputte
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université d'Angers, Angers, France.,Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Université d'Angers, Angers, France
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13
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Macedo-Raygoza GM, Valdez-Salas B, Prado FM, Prieto KR, Yamaguchi LF, Kato MJ, Canto-Canché BB, Carrillo-Beltrán M, Di Mascio P, White JF, Beltrán-García MJ. Enterobacter cloacae, an Endophyte That Establishes a Nutrient-Transfer Symbiosis With Banana Plants and Protects Against the Black Sigatoka Pathogen. Front Microbiol 2019; 10:804. [PMID: 31133991 PMCID: PMC6513882 DOI: 10.3389/fmicb.2019.00804] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 03/28/2019] [Indexed: 01/20/2023] Open
Abstract
Banana (Musa spp.) is an important crop worldwide, but black Sigatoka disease caused by the fungus Pseudocercospora fijiensis threatens fruit production. In this work, we examined the potential of the endophytes of banana plants Enterobacter cloacae and Klebsiella pneumoniae, as antagonists of P. fijiensis and support plant growth in nutrient limited soils by N-transfer. The two bacterial isolates were identified by MALDI-TOF mass spectrometry and corroborated by 16S rRNA sequence analysis. Both bacteria were positive for beneficial traits such as N-fixation, indole acetic acid production, phosphate solubilization, negative for 1-aminocyclopropane 1-carboxylic acid deaminase and were antagonistic to P. fijiensis. To measure the effects on plant growth, the two plant bacteria and an E. coli strain (as non-endophyte), were inoculated weekly for 60 days as active cells (AC) and heat-killed cells (HKC) into plant microcosms without nutrients and compared to a water only treatment, and a mineral nutrients solution (MMN) treatment. Bacterial treatments increased growth parameters and prevented accelerated senescence, which was observed for water and mineral nutrients solution (MMN) treatments used as controls. Plants died after the first 20 days of being irrigated with water; irrigation with MMN enabled plants to develop some new leaves, but plants lost weight (−30%) during the same period. Plants treated with bacteria showed good growth, but E. cloacae AC treated plants had significantly greater biomass than the E. cloacae HKC. After 60 days, plants inoculated with E. cloacae AC showed intracellular bacteria within root cells, suggesting that a stable symbiosis was established. To evaluate the transference of organic N from bacteria into the plants, the 3 bacteria were grown with 15NH4Cl or Na15NO3 as the nitrogen source. The 15N transferred from bacteria to plant tissues was measured by pheophytin isotopomer abundance. The relative abundance of the isotopomers m/z 872.57, 873.57, 874.57, 875.57, 876.57 unequivocally demonstrated that plants acquired 15N atoms directly from bacterial cells, using them as a source of N, to support plant growth in restricted nutrient soils. E. cloacae might be a new alternative to promote growth and health of banana crops.
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Affiliation(s)
- Gloria M Macedo-Raygoza
- Engineering Institute, Universidad Autónoma de Baja California, Mexicali, Mexico.,Department of Chemistry, Universidad Autónoma de Guadalajara, Zapopan, Mexico
| | | | - Fernanda M Prado
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Katia R Prieto
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil.,PPG Ciência Animal, Universidade de Franca, Franca, Brazil
| | - Lydia F Yamaguchi
- Department of Fundamental Chemistry, Institute of Chemistry, Universidade de São Paulo, São Paulo, Brazil
| | - Massuo J Kato
- Department of Fundamental Chemistry, Institute of Chemistry, Universidade de São Paulo, São Paulo, Brazil
| | - Blondy B Canto-Canché
- Biotechnology Unit, Centro de Investigación Científica de Yucatán A.C., Mérida, Mexico
| | | | - Paolo Di Mascio
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - James F White
- Department of Plant Biology, School of Environmental and Biological Sciences Rutgers, The State University of New Jersey, New Brunswick, NJ, United States
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14
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Mello TP, Bittencourt VCB, Liporagi-Lopes LC, Aor AC, Branquinha MH, Santos AL. Insights into the social life and obscure side of Scedosporium/Lomentospora species: ubiquitous, emerging and multidrug-resistant opportunistic pathogens. FUNGAL BIOL REV 2019. [DOI: 10.1016/j.fbr.2018.07.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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15
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Schwarz C, Vandeputte P, Rougeron A, Giraud S, Dugé de Bernonville T, Duvaux L, Gastebois A, Alastruey-Izquierdo A, Martín-Gomez MT, Mazuelos EM, Sole A, Cano J, Pemán J, Quindos G, Botterel F, Bougnoux ME, Chen S, Delhaès L, Favennec L, Ranque S, Sedlacek L, Steinmann J, Vazquez J, Williams C, Meyer W, Le Gal S, Nevez G, Fleury M, Papon N, Symoens F, Bouchara JP. Developing collaborative works for faster progress on fungal respiratory infections in cystic fibrosis. Med Mycol 2018. [PMID: 29538733 DOI: 10.1093/mmy/myx106] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cystic fibrosis (CF) is the major genetic inherited disease in Caucasian populations. The respiratory tract of CF patients displays a sticky viscous mucus, which allows for the entrapment of airborne bacteria and fungal spores and provides a suitable environment for growth of microorganisms, including numerous yeast and filamentous fungal species. As a consequence, respiratory infections are the major cause of morbidity and mortality in this clinical context. Although bacteria remain the most common agents of these infections, fungal respiratory infections have emerged as an important cause of disease. Therefore, the International Society for Human and Animal Mycology (ISHAM) has launched a working group on Fungal respiratory infections in Cystic Fibrosis (Fri-CF) in October 2006, which was subsequently approved by the European Confederation of Medical Mycology (ECMM). Meetings of this working group, comprising both clinicians and mycologists involved in the follow-up of CF patients, as well as basic scientists interested in the fungal species involved, provided the opportunity to initiate collaborative works aimed to improve our knowledge on these infections to assist clinicians in patient management. The current review highlights the outcomes of some of these collaborative works in clinical surveillance, pathogenesis and treatment, giving special emphasis to standardization of culture procedures, improvement of species identification methods including the development of nonculture-based diagnostic methods, microbiome studies and identification of new biological markers, and the description of genotyping studies aiming to differentiate transient carriage and chronic colonization of the airways. The review also reports on the breakthrough in sequencing the genomes of the main Scedosporium species as basis for a better understanding of the pathogenic mechanisms of these fungi, and discusses treatment options of infections caused by multidrug resistant microorganisms, such as Scedosporium and Lomentospora species and members of the Rasamsonia argillacea species complex.
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Affiliation(s)
- Carsten Schwarz
- Department of Pediatric Pneumology and Immunology, Cystic Fibrosis Center Berlin/Charité -Universitätsmedizin Berlin, Berlin, Germany
| | - Patrick Vandeputte
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Université Bretagne-Loire, Angers, France.,Laboratoire de Parasitologie-Mycologie, CHU, Angers, France
| | - Amandine Rougeron
- Université de Bordeaux, Microbiologie Fondamentale et Pathogénicité UMR 5234, Bordeaux, France; CNRS, Microbiologie Fondamentale et Pathogénicité, UMR 5234, Bordeaux, France; Laboratoire de Parasitologie-Mycologie, CHU, Bordeaux, France
| | - Sandrine Giraud
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Université Bretagne-Loire, Angers, France
| | - Thomas Dugé de Bernonville
- Biomolécules et Biotechnologies Végétales (EA 2106), Département de Biologie et Physiologie Végétales, UFR Sciences et Techniques, Université François Rabelais, Tours
| | - Ludovic Duvaux
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Université Bretagne-Loire, Angers, France.,Institut de Recherche en Horticulture et Semences (IRHS), UMR INRA 1345, Beaucouzé, France
| | - Amandine Gastebois
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Université Bretagne-Loire, Angers, France
| | - Ana Alastruey-Izquierdo
- Mycology Reference Laboratory, National Centre for Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Maria Teresa Martín-Gomez
- Respiratory Bacteriology Unit & Clinical Mycology Unit, Department of Microbiology, Vall D'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | - Amparo Sole
- Unidad de Trasplante Pulmonar y Fibrosis Quística, Hospital Universitari la Fe, Valencia, Spain
| | - Josep Cano
- Mycology Unit, Medical School/Oenology School, Universitat Rovira i Virgili, Reus, Spain
| | - Javier Pemán
- Unidad de Micología, Servicio de Microbiología, Universitari la Fe, Valencia, Spain
| | - Guillermo Quindos
- Laboratorio de Micología Médica, Departamento de Inmunología, Microbiología y Parasitología, Facultad de Medicina y Enfermería, Universidad del País Vasco, Bilbao, Spain
| | - Françoise Botterel
- Laboratoire de Parasitologie-Mycologie, CHU Henri Mondor, Créteil, France
| | | | - Sharon Chen
- Centre for Infectious Diseases and Microbiology Laboratory Services, ICPMR - Pathology West, Westmead Hospital, Westmead, New South Wales, Australia
| | - Laurence Delhaès
- Center for Cardiothoracic Research of Bordeaux, Inserm U1045, Bordeaux, France
| | - Loïc Favennec
- Laboratoire de Parasitologie-Mycologie, EA 3800, CHU Charles Nicolle and Université de Rouen, Rouen, France
| | - Stéphane Ranque
- Laboratoire de Parasitologie-Mycologie, AP-HM Timone, Marseille, France
| | - Ludwig Sedlacek
- Institute of Medical Microbiology and Hospital Epidemiology, Medical School Hannover, Hannover, Germany
| | - Joerg Steinmann
- Institute of Medical Microbiology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Jose Vazquez
- Division of Infectious Diseases, Department of Medicine, Georgia Regents University, Augusta, GA, USA
| | - Craig Williams
- University of the West of Scotland, Institute of Healthcare Associated Infection, University Hospital Crosshouse, Kilmarnock, United Kingdom
| | - Wieland Meyer
- Molecular Mycology Research Laboratory, Centre for Infectious Diseases and Microbiology, Sydney Medical School, Westmead Clinical School, Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Westmead Hospital, Westmead Institute for Medical Research, Westmead, NSW, Australia
| | - Solène Le Gal
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Université Bretagne-Loire, Brest, France.,Laboratoire de Parasitologie-Mycologie, CHU, Brest, France
| | - Gilles Nevez
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Université Bretagne-Loire, Brest, France.,Laboratoire de Parasitologie-Mycologie, CHU, Brest, France
| | - Maxime Fleury
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Université Bretagne-Loire, Angers, France
| | - Nicolas Papon
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Université Bretagne-Loire, Angers, France
| | - Françoise Symoens
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Université Bretagne-Loire, Angers, France
| | - Jean-Philippe Bouchara
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Université Bretagne-Loire, Angers, France.,Laboratoire de Parasitologie-Mycologie, CHU, Angers, France
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Ramirez-Garcia A, Pellon A, Rementeria A, Buldain I, Barreto-Bergter E, Rollin-Pinheiro R, de Meirelles JV, Xisto MIDS, Ranque S, Havlicek V, Vandeputte P, Govic YL, Bouchara JP, Giraud S, Chen S, Rainer J, Alastruey-Izquierdo A, Martin-Gomez MT, López-Soria LM, Peman J, Schwarz C, Bernhardt A, Tintelnot K, Capilla J, Martin-Vicente A, Cano-Lira J, Nagl M, Lackner M, Irinyi L, Meyer W, de Hoog S, Hernando FL. Scedosporium and Lomentospora: an updated overview of underrated opportunists. Med Mycol 2018. [PMID: 29538735 DOI: 10.1093/mmy/myx113] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Species of Scedosporium and Lomentospora are considered as emerging opportunists, affecting immunosuppressed and otherwise debilitated patients, although classically they are known from causing trauma-associated infections in healthy individuals. Clinical manifestations range from local infection to pulmonary colonization and severe invasive disease, in which mortality rates may be over 80%. These unacceptably high rates are due to the clinical status of patients, diagnostic difficulties, and to intrinsic antifungal resistance of these fungi. In consequence, several consortia have been founded to increase research efforts on these orphan fungi. The current review presents recent findings and summarizes the most relevant points, including the Scedosporium/Lomentospora taxonomy, environmental distribution, epidemiology, pathology, virulence factors, immunology, diagnostic methods, and therapeutic strategies.
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Affiliation(s)
- Andoni Ramirez-Garcia
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Aize Pellon
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Aitor Rementeria
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Idoia Buldain
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | | | | | | | | | - Stephane Ranque
- Laboratoire de Parasitologie-Mycologie, AP-HM / CHU Timone, Marseille, France
| | - Vladimir Havlicek
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Patrick Vandeputte
- Laboratoire de Parasitologie-Mycologie, CHU, Angers, France.,Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Angers, France
| | - Yohann Le Govic
- Laboratoire de Parasitologie-Mycologie, CHU, Angers, France.,Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Angers, France
| | - Jean-Philippe Bouchara
- Laboratoire de Parasitologie-Mycologie, CHU, Angers, France.,Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Angers, France
| | - Sandrine Giraud
- Host-Pathogen Interaction Study Group (EA 3142), UNIV Angers, UNIV Brest, Angers, France
| | - Sharon Chen
- Centre for Infectious Diseases and Microbiology Laboratory Services, ICPMR, Westmead Hospital, The University of Sydney, New South Wales, Australia
| | - Johannes Rainer
- Institute of Microbiology, Leopold-Franzens University Innsbruck, Austria
| | - Ana Alastruey-Izquierdo
- Mycology Reference Laboratory, National Centre for Microbiology. Instituto de Salud Carlos III. Majadahonda, Madrid, Spain
| | | | | | - Javier Peman
- Microbiology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Carsten Schwarz
- Cystic Fibrosis Centre Berlin/Charité-Universitätsmedizin Berlin, Germany
| | - Anne Bernhardt
- Mycotic and Parasitic Agents and Mycobacteria, Robert Koch Institute, Berlin, Germany
| | - Kathrin Tintelnot
- Mycotic and Parasitic Agents and Mycobacteria, Robert Koch Institute, Berlin, Germany
| | - Javier Capilla
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili, Reus, Spain
| | - Adela Martin-Vicente
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili, Reus, Spain.,Department of Clinical Pharmacy and Translational Science, University of Tennessee Health Science Center, Memphis, TN USA
| | - Jose Cano-Lira
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili, Reus, Spain
| | - Markus Nagl
- Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Michaela Lackner
- Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Laszlo Irinyi
- Molecular Mycology Research Laboratory, Centre for Infectious Diseases and Microbiology, Westmead Clinical School, Sydney Medical School - Westmead Hospital, Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Westmead Institute for Medical Research, Sydney, New South Wales, Australia
| | - Wieland Meyer
- Molecular Mycology Research Laboratory, Centre for Infectious Diseases and Microbiology, Westmead Clinical School, Sydney Medical School - Westmead Hospital, Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Westmead Institute for Medical Research, Sydney, New South Wales, Australia
| | - Sybren de Hoog
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
| | - Fernando L Hernando
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
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Le Govic Y, Papon N, Le Gal S, Lelièvre B, Bouchara JP, Vandeputte P. Genomic Organization and Expression of Iron Metabolism Genes in the Emerging Pathogenic Mold Scedosporium apiospermum. Front Microbiol 2018; 9:827. [PMID: 29755443 PMCID: PMC5932178 DOI: 10.3389/fmicb.2018.00827] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 04/11/2018] [Indexed: 12/11/2022] Open
Abstract
The ubiquitous mold Scedosporium apiospermum is increasingly recognized as an emerging pathogen, especially among patients with underlying disorders such as immunodeficiency or cystic fibrosis (CF). Indeed, it ranks the second among the filamentous fungi colonizing the respiratory tract of CF patients. However, our knowledge about virulence factors of this fungus is still limited. The role of iron-uptake systems may be critical for establishment of Scedosporium infections, notably in the iron-rich environment of the CF lung. Two main strategies are employed by fungi to efficiently acquire iron from their host or from their ecological niche: siderophore production and reductive iron assimilation (RIA) systems. The aim of this study was to assess the existence of orthologous genes involved in iron metabolism in the recently sequenced genome of S. apiospermum. At first, a tBLASTn analysis using A. fumigatus iron-related proteins as query revealed orthologs of almost all relevant loci in the S. apiospermum genome. Whereas the genes putatively involved in RIA were randomly distributed, siderophore biosynthesis and transport genes were organized in two clusters, each containing a non-ribosomal peptide synthetase (NRPS) whose orthologs in A. fumigatus have been described to catalyze hydroxamate siderophore synthesis. Nevertheless, comparative genomic analysis of siderophore-related clusters showed greater similarity between S. apiospermum and phylogenetically close molds than with Aspergillus species. The expression level of these genes was then evaluated by exposing conidia to iron starvation and iron excess. The expression of several orthologs of A. fumigatus genes involved in siderophore-based iron uptake or RIA was significantly induced during iron starvation, and conversely repressed in iron excess conditions. Altogether, these results indicate that S. apiospermum possesses the genetic information required for efficient and competitive iron uptake. They also suggest an important role of the siderophore production system in iron uptake by S. apiospermum.
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Affiliation(s)
- Yohann Le Govic
- Groupe d'Etude des Interactions Hôte-Pathogène (EA 3142), SFR ICAT 4208, UNIV Angers, UNIV Brest, Angers, France
- Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Angers, France
| | - Nicolas Papon
- Groupe d'Etude des Interactions Hôte-Pathogène (EA 3142), SFR ICAT 4208, UNIV Angers, UNIV Brest, Angers, France
| | - Solène Le Gal
- Groupe d'Etude des Interactions Hôte-Pathogène (EA 3142), SFR ICAT 4208, UNIV Angers, UNIV Brest, Brest, France
- Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Brest, France
| | - Bénédicte Lelièvre
- Groupe d'Etude des Interactions Hôte-Pathogène (EA 3142), SFR ICAT 4208, UNIV Angers, UNIV Brest, Angers, France
- Laboratoire de Pharmacologie-Toxicologie, Centre Hospitalier Universitaire, Angers, France
| | - Jean-Philippe Bouchara
- Groupe d'Etude des Interactions Hôte-Pathogène (EA 3142), SFR ICAT 4208, UNIV Angers, UNIV Brest, Angers, France
- Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Angers, France
| | - Patrick Vandeputte
- Groupe d'Etude des Interactions Hôte-Pathogène (EA 3142), SFR ICAT 4208, UNIV Angers, UNIV Brest, Angers, France
- Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire, Angers, France
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Proteomics as a Tool to Identify New Targets Against Aspergillus and Scedosporium in the Context of Cystic Fibrosis. Mycopathologia 2017; 183:273-289. [PMID: 28484941 DOI: 10.1007/s11046-017-0139-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 04/25/2017] [Indexed: 12/26/2022]
Abstract
Cystic fibrosis (CF) is a genetic disorder that increases the risk of suffering microbial, including fungal, infections. In this paper, proteomics-based information was collated relating to secreted and cell wall proteins with potential medical applications from the most common filamentous fungi in CF, i.e., Aspergillus and Scedosporium/Lomentospora species. Among the Aspergillus fumigatus secreted allergens, β-1,3-endoglucanase, the alkaline protease 1 (Alp1/oryzin), Asp f 2, Asp f 13/15, chitinase, chitosanase, dipeptidyl-peptidase V (DppV), the metalloprotease Asp f 5, mitogillin/Asp f 1, and thioredoxin reductase receive a special mention. In addition, the antigens β-glucosidase 1, catalase, glucan endo-1,3-β-glucosidase EglC, β-1,3-glucanosyltransferases Gel1 and Gel2, and glutaminase A were also identified in secretomes of other Aspergillus species associated with CF: Aspergillus flavus, Aspergillus niger, Aspergillus nidulans, and Aspergillus terreus. Regarding cell wall proteins, cytochrome P450 and eEF-3 were proposed as diagnostic targets, and alkaline protease 2 (Alp2), Asp f 3 (putative peroxiredoxin pmp20), probable glycosidases Asp f 9/Crf1 and Crf2, GPI-anchored protein Ecm33, β-1,3-glucanosyltransferase Gel4, conidial hydrophobin Hyp1/RodA, and secreted aspartyl protease Pep2 as protective vaccines in A. fumigatus. On the other hand, for Scedosporium/Lomentospora species, the heat shock protein Hsp70 stands out as a relevant secreted and cell wall antigen. Additionally, the secreted aspartyl proteinase and an ortholog of Asp f 13, as well as the cell wall endo-1,3-β-D-glucosidase and 1,3-β-glucanosyl transferase, were also found to be significant proteins. In conclusion, proteins mentioned in this review may be promising candidates for developing innovative diagnostic and therapeutic tools for fungal infections in CF patients.
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Pluháček T, Lemr K, Ghosh D, Milde D, Novák J, Havlíček V. Characterization of microbial siderophores by mass spectrometry. MASS SPECTROMETRY REVIEWS 2016; 35:35-47. [PMID: 25980644 DOI: 10.1002/mas.21461] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 12/19/2014] [Indexed: 05/28/2023]
Abstract
Siderophores play important roles in microbial iron piracy, and are applied as infectious disease biomarkers and novel pharmaceutical drugs. Inductively coupled plasma and molecular mass spectrometry (ICP-MS) combined with high resolution separations allow characterization of siderophores in complex samples taking advantages of mass defect data filtering, tandem mass spectrometry, and iron-containing compound quantitation. The enrichment approaches used in siderophore analysis and current ICP-MS technologies are reviewed. The recent tools for fast dereplication of secondary metabolites and their databases are reported. This review on siderophores is concluded with their recent medical, biochemical, geochemical, and agricultural applications in mass spectrometry context.
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Affiliation(s)
- Tomáš Pluháček
- Department of Analytical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University, 17. listopadu 12, 771 46, Olomouc, Czech Republic
- Institute of Microbiology, AS CR v.v.i., Videnska 1083, CZ 142 20, Prague 4, Czech Republic
| | - Karel Lemr
- Department of Analytical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University, 17. listopadu 12, 771 46, Olomouc, Czech Republic
- Institute of Microbiology, AS CR v.v.i., Videnska 1083, CZ 142 20, Prague 4, Czech Republic
| | - Dipankar Ghosh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - David Milde
- Department of Analytical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University, 17. listopadu 12, 771 46, Olomouc, Czech Republic
| | - Jiří Novák
- Institute of Microbiology, AS CR v.v.i., Videnska 1083, CZ 142 20, Prague 4, Czech Republic
| | - Vladimír Havlíček
- Department of Analytical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University, 17. listopadu 12, 771 46, Olomouc, Czech Republic
- Institute of Microbiology, AS CR v.v.i., Videnska 1083, CZ 142 20, Prague 4, Czech Republic
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Fazary AE, Ju YH, Al-Shihri AS, Alfaifi MY, Alshehri MA. Biodegradable siderophores: survey on their production, chelating and complexing properties. REV INORG CHEM 2016. [DOI: 10.1515/revic-2016-0002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe academic and industrial research on the interactions of complexing agents with the environment has received more attention for more than half a century ago and has always been concerned with the applications of chelating agents in the environment. In contrast, in recent years, an increasing scholarly interest has been demonstrated in the chemical and biological degradation of chelating agents. This is reflected by the increasing number of chelating agents-related publications between 1950 and middle of 2016. Consequently, the discovery of new green biodegradable chelating agents is of great importance and has an impact in the non-biodegradable chelating agent’s replacement with their green chemistry analogs. To acquire iron, many bacteria growing aerobically, including marine species, produce siderophores, which are low-molecular-weight compounds produced to facilitate acquisition of iron. To date and to the best of our knowledge, this is a concise and complete review article of the current and previous relevant studies conducted in the field of production, purification of siderophore compounds and their metal complexes, and their roles in biology and medicine.
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Mina S, Staerck C, d'Almeida SM, Marot A, Delneste Y, Calenda A, Tabiasco J, Bouchara JP, Fleury MJJ. Identification of Scedosporium boydii catalase A1 gene, a reactive oxygen species detoxification factor highly expressed in response to oxidative stress and phagocytic cells. Fungal Biol 2015; 119:1322-1333. [PMID: 26615753 DOI: 10.1016/j.funbio.2015.09.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 09/10/2015] [Accepted: 09/24/2015] [Indexed: 01/27/2023]
Abstract
Scedosporium boydii is an opportunistic filamentous fungus which may be responsible for a large variety of infections in both immunocompetent and immunocompromised individuals. This fungus belongs to the Scedosporium apiospermum species complex which usually ranks second among the filamentous fungi colonizing the airways of patients with cystic fibrosis (CF). Species of the S. apiospermum complex are able to chronically colonize the CF airways suggesting pathogenic mechanisms allowing persistence and growth of these fungi in the respiratory tract. Few putative virulence factors have been purified and characterized so far in the S. apiospermum complex including a cytosolic Cu,Zn-superoxide dismutase (SOD) and a monofunctional catalase (catalase A1). Upon microbial infection, host phagocytes release reactive oxygen species (ROS), such as hydrogen peroxide, as part of the antimicrobial response. Catalases are known to protect pathogens against ROS by degradation of the hydrogen peroxide. Here, we identified the S. boydii catalase A1 gene (CATA1) and investigated its expression in response to the environmental conditions encountered in the CF airways and to the oxidative stress. Results showed that S. boydii CATA1 gene expression is not affected by hypoxia, hypercapnia or pH changes. In contrast, CATA1 gene was overexpressed in response to a chemically induced oxidative stress with a relative gene expression 37-fold higher in the presence of 250 μM H(2)O(2), 20-fold higher with 250 μM menadione and 5-fold higher with 2 mM paraquat. Moreover, S. boydii CATA1 gene expression progressively increased upon exposure to activated THP-1-derived macrophages, reaching a maximum after 12 h (26 fold). Activated HL60-derived neutrophils and activated human peripheral blood neutrophils more rapidly induced S. boydii CATA1 gene overexpression, a maximum gene expression level being reached at 75 min (17 fold) and 60 min (15 fold), respectively. In contrast expression of the gene encoding the Cu,Zn-SOD (SODC gene) was not affected by H(2)O(2), menadione, paraquat or in co-culture with phagocytic cells. These results suggest that S. boydii CATA1 gene is highly stimulated by the oxidative burst response whereas SODC gene is constitutively expressed.
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Affiliation(s)
- Sara Mina
- L'UNAM Université, Université d'Angers, Groupe d'Etude des Interactions Hôte-Pathogène, UPRES EA 3142, Angers, France
| | - Cindy Staerck
- L'UNAM Université, Université d'Angers, Groupe d'Etude des Interactions Hôte-Pathogène, UPRES EA 3142, Angers, France
| | - Sènan M d'Almeida
- L'UNAM Université, Université d'Angers, Immunité Innée et Immunothérapie, Angers, France; Inserm UMR 892, Angers, France; CNRS UMR 6299, Angers, France
| | - Agnès Marot
- L'UNAM Université, Université d'Angers, Groupe d'Etude des Interactions Hôte-Pathogène, UPRES EA 3142, Angers, France
| | - Yves Delneste
- L'UNAM Université, Université d'Angers, Immunité Innée et Immunothérapie, Angers, France; Inserm UMR 892, Angers, France; CNRS UMR 6299, Angers, France; Laboratoire d'Immunologie et Allergologie, Centre Hospitalier Universitaire d'Angers, France
| | - Alphonse Calenda
- L'UNAM Université, Université d'Angers, Groupe d'Etude des Interactions Hôte-Pathogène, UPRES EA 3142, Angers, France
| | - Julie Tabiasco
- L'UNAM Université, Université d'Angers, Immunité Innée et Immunothérapie, Angers, France; Inserm UMR 892, Angers, France; CNRS UMR 6299, Angers, France
| | - Jean-Philippe Bouchara
- L'UNAM Université, Université d'Angers, Groupe d'Etude des Interactions Hôte-Pathogène, UPRES EA 3142, Angers, France; Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire d'Angers, France
| | - Maxime J J Fleury
- L'UNAM Université, Université d'Angers, Groupe d'Etude des Interactions Hôte-Pathogène, UPRES EA 3142, Angers, France.
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Schwarz C, Thronicke A, Staab D, Tintelnot K. Scedosporium apiospermum: a fungal pathogen causing pneumonia in a patient with cystic fibrosis. JMM Case Rep 2015. [DOI: 10.1099/jmmcr.0.000061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Carsten Schwarz
- Division of Cystic Fibrosis, Pediatric Pneumology and Immunology, Charité – Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Anja Thronicke
- Division of Cystic Fibrosis, Pediatric Pneumology and Immunology, Charité – Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Doris Staab
- Division of Cystic Fibrosis, Pediatric Pneumology and Immunology, Charité – Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Kathrin Tintelnot
- Reference laboratory for cryptococcosis, scedosporiosis and imported systemic mycoses, FG16, Mycotic and Parasitic Agents and Mycobacteria, Robert Koch Institute, Nordufer 20, 13353 Berlin, Germany
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Influence of Various Levels of Iron and Other Abiotic Factors on Siderophorogenesis in Paddy Field Cyanobacterium Anabaena oryzae. Appl Biochem Biotechnol 2015; 176:372-86. [DOI: 10.1007/s12010-015-1581-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 03/12/2015] [Indexed: 10/23/2022]
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Giraud S, Bouchara JP. Scedosporium apiospermum Complex: Diagnosis and Species Identification. CURRENT FUNGAL INFECTION REPORTS 2014. [DOI: 10.1007/s12281-014-0192-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lu Q, van den Ende AHGG, de Hoog GS, Li R, Accoceberry I, Durand-Joly I, Bouchara JP, Hernandez F, Delhaes L. Reverse line blot hybridisation screening of Pseudallescheria/Scedosporium species in patients with cystic fibrosis. Mycoses 2012; 54 Suppl 3:5-11. [PMID: 21995657 DOI: 10.1111/j.1439-0507.2011.02108.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The PCR-RLB (reverse line blot hybridisation) was applied as a molecular technique for the detection of members of Pseudallescheria and Scedosporium from sputum of patients with cystic fibrosis (CF). Fifty-nine sputum samples were collected from 52 CF patients, which were analysed by culture and PCR-RLB. Conventional and semi-selective culture yielded five positive samples, but the PCR-RLB hybridisation assay permitted the detection of members of Pseudallescheria/Scedosporium in 32 out of 52 patients (61.5%). In total, PCR-RLB yielded 47 positives. Pseudallescheria apiosperma was detected in 20 samples, while Pseudallescheria boydii and Pseudallescheria aurantiacum were detected in 17 and eight samples, respectively. Six samples gave a positive reaction with two distinct species-specific probes and one sample with three probes. In conclusion, the PCR-RLB assay described in this study allows the detection of Scedosporium spp. in CF sputum samples and the identification of Pseudallescheria apiosperma, P. boydii, S. aurantiacum, Scedosporium prolificans and Pseudallescheria minutispora.
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Affiliation(s)
- Q Lu
- Department of Dermatology, Peking University First Hospital, and Research Center for Medical Mycology, Peking University, Beijing, China
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da Silva BA, Sodré CL, Souza-Gonçalves AL, Aor AC, Kneipp LF, Fonseca BB, Rozental S, Romanos MTV, Sola-Penna M, Perales J, Kalume DE, dos Santos ALS. Proteomic analysis of the secretions of Pseudallescheria boydii, a human fungal pathogen with unknown genome. J Proteome Res 2011; 11:172-88. [PMID: 22142336 DOI: 10.1021/pr200875x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Pseudallescheria boydii is a filamentous fungus that causes a wide array of infections that can affect practically all the organs of the human body. The treatment of pseudallescheriosis is difficult since P. boydii exhibits intrinsic resistance to the majority of antifungal drugs used in the clinic and the virulence attributes expressed by this fungus are unknown. The study of the secretion of molecules is an important approach for understanding the pathogenicity of fungi. With this task in mind, we have shown that mycelial cells of P. boydii were able to actively secrete proteins into the extracellular environment; some of them were recognized by antibodies present in the serum of a patient with pseudallescheriosis. Additionally, molecules secreted by P. boydii induced in vitro irreversible damage in pulmonary epithelial cells. Subsequently, two-dimensional gel electrophoresis combined with mass spectrometry was carried out in order to start the construction of a map of secreted proteins from P. boydii mycelial cells. The two-dimensional map showed that most of the proteins (around 100 spots) were focused at pH ranging from 4 to 7 with molecular masses ranging from 14 to >117 kDa. Fifty spots were randomly selected, of which 30 (60%) were consistently identified, while 20 (40%) spots generated peptides that showed no resemblance to any known protein from other fungi and/or MS with low quality. Notably, we identified proteins involved in metabolic pathways (energy/carbohydrate, nucleotide, and fatty acid), cell wall remodeling, RNA processing, signaling, protein degradation/nutrition, translation machinery, drug elimination and/or detoxification, protection against environmental stress, cytoskeleton/movement proteins, and immunogenic molecules. Since the genome of this fungus is not sequenced, we performed enzymatic and immunodetection assays in order to corroborate the presence of some released proteins. The identification of proteins actively secreted by P. boydii provides important new information for understanding immune modulation and provides important new perspectives on the biology of this intriguing fungus.
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Affiliation(s)
- Bianca Alcântara da Silva
- Laboratório de Estudos Integrados em Bioquímica Microbiana, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPPG), Universidade Federal do Rio de Janeiro , Rio de Janeiro, Brazil
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Bertrand S, Bouchara JP, Venier MC, Richomme P, Duval O, Larcher G. N(α)-methyl coprogen B, a potential marker of the airway colonization by Scedosporium apiospermum in patients with cystic fibrosis. Med Mycol 2011; 48 Suppl 1:S98-107. [PMID: 21067336 DOI: 10.3109/13693786.2010.503972] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Scedosporium apiospermum is an emerging pathogen colonizing the airways of patients with cystic fibrosis (CF). While usually responsible for chronic colonization without clinical signs, this fungus may cause severe and often lethal infections in lung transplant recipients. Early diagnosis of its airway colonization and appropriate treatment are required to eradicate the fungus when a lung transplantation is planned. Here we propose an alternative to mycological examination of sputum samples based on extraction of siderophores by chromatography on Amberlite XAD-4, followed by high performance liquid chromatography analysis of the siderophore extract. Improvement of the extraction procedure was performed in a fractional factorial design which revealed the importance of prior ammonium sulfate precipitation of the proteins, alkalinization of the obtained solution and stirring during extraction. In order to verify the specificity of N(α)-methyl coprogen B for S. apiospermum, the method was applied on culture supernatants of different filamentous fungi colonizing the airways of CF patients, including some aspergilli and Exophiala dermatitidis. N(α)-methyl coprogen B was detected exclusively for species of the S. apiospermum complex. Likewise, sputum samples from colonized and non-colonized CF patients were analyzed, and the siderophore was detected exclusively in three out of the five specimens which were found by culture to contain S. apiospermum. Together these results confirmed N(α)-methyl coprogen B as a marker of the airway colonization by species of the S. apiospermum complex.
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Pavlaskova K, Nedved J, Kuzma M, Zabka M, Sulc M, Sklenar J, Novak P, Benada O, Kofronova O, Hajduch M, Derrick PJ, Lemr K, Jegorov A, Havlicek V. Characterization of pseudacyclins A-E, a suite of cyclic peptides produced by Pseudallescheria boydii. JOURNAL OF NATURAL PRODUCTS 2010; 73:1027-1032. [PMID: 20509707 DOI: 10.1021/np900472c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Pseudallescheria boydii sensu lato is an emerging fungal pathogen causing fatal infections in both immunocompromised and immunocompetent hosts. In this work, two P. boydii isolates (human and animal origin) have been identified as being producers of cyclic peptides. Five putative nonribosomal peptides with a unique structure, which have been named pseudacyclins, were characterized by nuclear magnetic resonance spectroscopy and mass spectrometry. The most abundant representative of the pseudacyclins was quantified also on fungal spores. The presence of these peptides on inhaled fungal spores creates the possibility for exploitation of pseudacyclins as early indicators of fungal infections caused by Pseudallescheria species.
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Bertrand S, Duval O, Hélesbeux JJ, Larcher G, Richomme P. Synthesis of the trans-fusarinine scaffold. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.02.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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