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Ghazvini K, Keikha M. Comment on ‘Necrotizing fasciitis in neonate by Lichtheimia ramosa: A case study’. Access Microbiol 2022; 4:acmi000364. [PMID: 36415543 PMCID: PMC9675041 DOI: 10.1099/acmi.0.000364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/28/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Kiarash Ghazvini
- Department of Microbiology and Virology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Masoud Keikha
- Department of Microbiology and Virology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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2
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Colman S, Giusiano G, Colman C, Sosa MDLÁ, Rojas F. Hepatic failure and malnutrition as predisposing factors of cutaneous mucormycosis in a pediatric patient. Med Mycol Case Rep 2022; 35:26-29. [PMID: 35059283 PMCID: PMC8760179 DOI: 10.1016/j.mmcr.2021.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 12/15/2021] [Accepted: 12/27/2021] [Indexed: 12/30/2022] Open
Abstract
The genus Lichtheimia is the third-most frequent genus isolated in mucormycosis. We report a cutaneous case caused by Lichtheimia ramosa, localized on the face of a pediatric patient, in the context of acute liver failure and caloric malnutrition. Several surgeries and treatment with liposomal amphotericin B enabled the patient's favorable evolution.
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Affiliation(s)
- Silvia Colman
- Hospital Pediátrico Dr. Avelino Castelán, Resistencia, 3500, Argentina
| | - Gustavo Giusiano
- Instituto de Medicina Regional, Universidad Nacional del Nordeste, CONICET, Resistencia, 3500, Argentina
| | - Carmen Colman
- Hospital Pediátrico Dr. Avelino Castelán, Resistencia, 3500, Argentina
| | | | - Florencia Rojas
- Instituto de Medicina Regional, Universidad Nacional del Nordeste, CONICET, Resistencia, 3500, Argentina
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3
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Lee SY, Chung CU, Park JS, Kim YJ, Kim YS, Na EJ, Kim Y, Oem JK. Genetic diversity of bat coronaviruses and comparative genetic analysis of MERS-related coronaviruses in South Korea. Transbound Emerg Dis 2021; 69:e463-e472. [PMID: 34536059 DOI: 10.1111/tbed.14324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 03/17/2021] [Accepted: 09/11/2021] [Indexed: 01/05/2023]
Abstract
Bats have been identified as a natural reservoir of several potentially zoonotic viruses, including Lyssavirus, Ebola virus, Marburg virus, Hendra virus, Nipah virus, as well as severe acute respiratory syndrome and Middle East respiratory syndrome coronavirus (CoV). Here, we performed a molecular epidemiological investigation of South Korean bat viruses. Genetic comparative analysis was performed on the spike glycoprotein gene of the detected MERS-related CoVs. Among 1640 samples (348 oral swabs, 1199 faecal samples, 83 urine samples and 10 bat carcass) collected across 24 South Korean provinces during 2017-2019, CoV was detected in 82 samples (75 faeces and seven oral swab samples) from 11 provinces. Surveillance over the 3 years during which samples were collected revealed significantly higher CoV detection rates between spring and autumn, and a high detection rate in Vespertillionidae and Rhinolophidae bats. Our phylogenetic analysis shows that Korean bat CoVs are genetically diverse regardless of their spatiotemporal distribution and their host species, and that the discovered bat CoVs belong to various subgenera within the Alpha- and Betacoronavirus genera. Twenty detected MERS-related CoVs belonging to the genus Betacoronavirus were similar to the Ia io bat CoV NL140422 and NL13845 strains. A comprehensive genetic analysis of two Korean bat MERS-related CoV spike receptor binding domain (RBDs) (176 and 267 strains) showed that the 18 critical residues that are involved in interactions with the human DPP4 receptor are most similar to the NL13845 strain, which is known to not bind with hDPP4. A deeper analysis of the interfacing residues in the Korean bat MERS-related CoVs RBD-hDPP4 complexes showed that the Korean bat CoVs has fewer polar contacts than the NL13845 strain. Although further study will be needed, these results suggest that Korean bat MERS-related CoVs are unlikely to bind with hDPP4. Nevertheless, these findings highlight the need for continuous monitoring to identifying the origin of new infectious diseases, specifically mutant CoV.
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Affiliation(s)
- Sook-Young Lee
- Laboratory of Veterinary Infectious Disease, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Chul-Un Chung
- Department of Life Science, Dongguk University, Gyeongju, Republic of Korea
| | - Jun Soo Park
- Laboratory of Veterinary Infectious Disease, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Yoon Ji Kim
- Laboratory of Veterinary Infectious Disease, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Young-Sik Kim
- Laboratory of Veterinary Infectious Disease, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Eun-Jee Na
- Laboratory of Veterinary Infectious Disease, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - YongKwan Kim
- Wildlife Disease Response Team, National Institution of Wildlife Disease Control and Prevention, Gwangju, Republic of Korea
| | - Jae-Ku Oem
- Laboratory of Veterinary Infectious Disease, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
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4
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Bobadilla-Carrillo GI, Magallón-Servín P, López-Vela M, Palomino-Hermosillo YA, Ramírez-Ramírez JC, Gutiérrez-Leyva R, Ibarra-Castro L, Bautista-Rosales PU. Characterization and proliferation capacity of potentially pathogenic fungi in marine and freshwater fish commercial feeds. Arch Microbiol 2020; 202:2379-2390. [PMID: 32588083 DOI: 10.1007/s00203-020-01954-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 05/22/2020] [Accepted: 06/15/2020] [Indexed: 10/24/2022]
Abstract
In the aquaculture industry, the selection and quality of feed are highly relevant because their integrity and management have an impact on the health and development of organisms. In general, feeds contamination depends on storage conditions and formulation. Furthermore, it has been recognized that filamentous fungi are among the most important contaminating agent in formulated feeds. Therefore, the purpose of this research was to identify saprophytic fungi capable of proliferating in commercial feeds, as well as determining their prevalence, extracellular enzymes profile, ability to assimilate carbon sources, and finally their ability to produce aflatoxins. In order to do that, twenty-two fungi were isolated from commercial fish feeds. After, the species Aspergillus chevalieri, A. cristatus, A. sydowii, A. versicolor, A. flavus, A. creber, and Lichtheimia ramosa were identified. These fungi were able to produce extracellular enzymes, such as phosphatases, esterases, proteases, β-glucosidase, and N-acetyl-β-glucosaminidase. The isolated fungi showed no selective behavior in the assimilation of the different carbon sources, showing a strong metabolic diversity. Prevalence percentages above 85% were recorded. Among all fungi studied, A. flavus M3-C1 had the highest production of aflatoxins when this strain was inoculated directly in the feeds (295 ppb). The aflatoxin production by this strain under the experimental setting is above the permitted levels, and it has been established that high levels of aflatoxins in feeds can cause alterations in fish growth as well as the development of cancerous tumors in the liver, in addition to enhancing mortality.
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Affiliation(s)
- Giovanna Ilieva Bobadilla-Carrillo
- Programa de Doctorado en Ciencias Biológico Agropecuarias, Universidad Autónoma de Nayarit, Km. 9, Carretera Tepic-Compostela, C. P. 63780, Xalisco, Nayarit, Mexico.,Unidad de Tecnología de Alimentos, Universidad Autónoma de Nayarit, Ciudad de La Cultura S/N. Col. Centro, C. P. 63000, Tepic, Nayarit, Mexico
| | - Paola Magallón-Servín
- Environmental Microbiology Group At Centro de Investigaciones Biológicas del Noroeste, Km. 1 Carretera a San Juan de La Costa "El Comitan", C. P. 23205, La Paz, Baja California Sur, Mexico.,Bashan Institute of Sciences, 1730 Post Oak Ct. Auburn, Dadeville, Alabama, 36830, USA
| | - Melissa López-Vela
- Environmental Microbiology Group At Centro de Investigaciones Biológicas del Noroeste, Km. 1 Carretera a San Juan de La Costa "El Comitan", C. P. 23205, La Paz, Baja California Sur, Mexico.,Bashan Institute of Sciences, 1730 Post Oak Ct. Auburn, Dadeville, Alabama, 36830, USA
| | | | - José Carmen Ramírez-Ramírez
- Unidad Académica de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nayarit, Km. 3.5 Carretera Compostela-Chapalilla, C. P. 63700, Compostela, Nayarit, Mexico
| | - Ranferi Gutiérrez-Leyva
- Unidad Académica de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nayarit, Km. 3.5 Carretera Compostela-Chapalilla, C. P. 63700, Compostela, Nayarit, Mexico
| | - Leonardo Ibarra-Castro
- Centro de Investigación en Alimentación y Desarrollo, Av. Sábalo Cerritos S/N, Col. Cerritos, C. P. 82100, Mazatlán, Sinaloa, Mexico
| | - Pedro Ulises Bautista-Rosales
- Programa de Doctorado en Ciencias Biológico Agropecuarias, Universidad Autónoma de Nayarit, Km. 9, Carretera Tepic-Compostela, C. P. 63780, Xalisco, Nayarit, Mexico. .,Unidad de Tecnología de Alimentos, Universidad Autónoma de Nayarit, Ciudad de La Cultura S/N. Col. Centro, C. P. 63000, Tepic, Nayarit, Mexico.
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5
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Rambach G, Fleischer V, Harpf V, Lackner M, Meinitzer A, Maier H, Engesser J, Lass-Flörl C, Speth C. Comparative immunopathogenesis in a murine model of inhalative infection with the mucormycetes Lichtheimia corymbifera and Rhizopus arrhizus. PLoS One 2020; 15:e0234063. [PMID: 32555589 PMCID: PMC7299637 DOI: 10.1371/journal.pone.0234063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/18/2020] [Indexed: 12/27/2022] Open
Abstract
Pathogenic mucormycetes induce diseases with considerable morbidity and mortality in immunocompromised patients. Virulence data comparing different Mucorales species and various underlying risk factors are limited. We therefore compared the pathogenesis of inhalative infection by Rhizopus (R.) arrhizus and Lichtheimia (L.) corymbifera in murine models for predominant risk factors for onset of infection. Mice with diabetes or treated with cyclophosphamide or cortisone acetate were challenged via the intranasal route with an isolate of R. arrhizus or L. corymbifera, respectively. Clinical, immunological and inflammation parameters as well as efficacy of posaconazole prophylaxis were monitored over 14 days. Whereas immunocompetent mice showed no clinical symptoms after mucormycete infection, mice treated with either cyclophosphamide (CP) or cortisone acetate (CA) were highly susceptible. Animals infected with the isolate of R. arrhizus showed prolonged survival and lower mortality, compared to those exposed to the L. corymbifera isolate. This lower virulence of R. arrhizus was risk factor-dependent, since diabetic mice died only after infection with Rhizopus, whereas all Lichtheimia-infected diabetic animals survived. Under posaconazole prophylaxis, both mucormycetes were able to establish breakthrough infections in CA- and CP-treated mice, but the course of infection was significantly delayed. Detailed analysis revealed that susceptibility of CA- and CP-treated mice could not be mimicked by exclusive lack or downmodulation of neutrophils, platelets or complement, but can be supposed to be the consequence of a broad immunosuppressive effect induced by the drugs. Both Lichtheimia corymbifera and Rhizopus arrhizus induce invasive mycoses in immunocompromised hosts after inhalative infection. Key parameters such as virulence and immunopathogenesis vary strongly according to fungal species and underlying risk group. Selected neutropenia is no sufficient risk factor for onset of inhalative mucormycosis.
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Affiliation(s)
- Günter Rambach
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
- Christian Doppler Laboratory for Invasive Fungal Infections, Innsbruck, Austria
| | - Verena Fleischer
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
- Christian Doppler Laboratory for Invasive Fungal Infections, Innsbruck, Austria
| | - Verena Harpf
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
- Christian Doppler Laboratory for Invasive Fungal Infections, Innsbruck, Austria
| | - Michaela Lackner
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
- Christian Doppler Laboratory for Invasive Fungal Infections, Innsbruck, Austria
| | - Andreas Meinitzer
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - Hans Maier
- INNPATH GmbH–Institute of Pathology, Innsbruck, Austria
| | - Johannes Engesser
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
- Christian Doppler Laboratory for Invasive Fungal Infections, Innsbruck, Austria
| | - Cornelia Lass-Flörl
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
- Christian Doppler Laboratory for Invasive Fungal Infections, Innsbruck, Austria
| | - Cornelia Speth
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
- Christian Doppler Laboratory for Invasive Fungal Infections, Innsbruck, Austria
- * E-mail:
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6
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Hassan MIA, Cseresnyes Z, Al-Zaben N, Dahse HM, Vilela de Oliveira RJ, Walther G, Voigt K, Figge MT. The geographical region of origin determines the phagocytic vulnerability of Lichtheimia strains. Environ Microbiol 2019; 21:4563-4581. [PMID: 31330072 DOI: 10.1111/1462-2920.14752] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 07/17/2019] [Indexed: 12/15/2022]
Abstract
Mucormycoses are life-threatening infections that affect patients suffering from immune deficiencies. We performed phagocytosis assays confronting various strains of Lichtheimia species with alveolar macrophages, which form the first line of defence of the innate immune system. To investigate 17 strains from four different continents in a comparative fashion, transmitted light and confocal fluorescence microscopy was applied in combination with automated image analysis. This interdisciplinary approach enabled the objective and quantitative processing of the big volume of image data. Applying machine-learning supported methods, a spontaneous clustering of the strains was revealed in the space of phagocytic measures. This clustering was not driven by measures of fungal morphology but rather by the geographical origin of the fungal strains. Our study illustrates the crucial contribution of machine-learning supported automated image analysis to the qualitative discovery and quantitative comparison of major factors affecting host-pathogen interactions. We found that the phagocytic vulnerability of Lichtheimia species depends on their geographical origin, where strains within each geographic region behaved similarly, but strongly differed amongst the regions. Based on this clustering, we were able to also classify clinical isolates with regard to their potential geographical origin.
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Affiliation(s)
- Mohamed I Abdelwahab Hassan
- Jena Microbial Resource Collection, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Jena, Germany.,Institute of Microbiology, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany.,Pests & Plant Protection Department, National Research Centre, 33rd El Buhouth St., 12622 Dokki, Giza, Egypt
| | - Zoltan Cseresnyes
- Applied Systems Biology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Jena, Germany
| | - Naim Al-Zaben
- Institute of Microbiology, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany.,Applied Systems Biology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Jena, Germany
| | - Hans-Martin Dahse
- Infection Biology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Jena, Germany
| | - Rafael J Vilela de Oliveira
- Post-Graduate Course in the Biology of Fungi, Department of Mycology, Federal University of Pernambuco, Av. Prof. Nelson Chaves, s/n, Recife, Prince Edward Island, Brazil
| | - Grit Walther
- National Reference Center for Invasive Fungal Infections, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Jena, Germany
| | - Kerstin Voigt
- Jena Microbial Resource Collection, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Jena, Germany.,Institute of Microbiology, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Marc Thilo Figge
- Institute of Microbiology, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany.,Applied Systems Biology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Jena, Germany
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7
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Wijayawardene NN, Pawłowska J, Letcher PM, Kirk PM, Humber RA, Schüßler A, Wrzosek M, Muszewska A, Okrasińska A, Istel Ł, Gęsiorska A, Mungai P, Lateef AA, Rajeshkumar KC, Singh RV, Radek R, Walther G, Wagner L, Walker C, Wijesundara DSA, Papizadeh M, Dolatabadi S, Shenoy BD, Tokarev YS, Lumyong S, Hyde KD. Notes for genera: basal clades of Fungi (including Aphelidiomycota, Basidiobolomycota, Blastocladiomycota, Calcarisporiellomycota, Caulochytriomycota, Chytridiomycota, Entomophthoromycota, Glomeromycota, Kickxellomycota, Monoblepharomycota, Mortierellomycota, Mucoromycota, Neocallimastigomycota, Olpidiomycota, Rozellomycota and Zoopagomycota). FUNGAL DIVERS 2018. [DOI: 10.1007/s13225-018-0409-5] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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8
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Kaneko Y, Oinuma KI, Terachi T, Arimura Y, Niki M, Yamada K, Kakeya H, Mizutani T. Successful Treatment of Intestinal Mycosis Caused by a Simultaneous Infection with Lichtheimia ramosa and Aspergillus calidoustus. Intern Med 2018. [PMID: 29526942 PMCID: PMC6148160 DOI: 10.2169/internalmedicine.0254-17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
A 53-year-old woman was hospitalized due to septic shock after developing pneumococcal pneumonia after undergoing esophageal cancer surgery. Her transverse colon became perforated after receiving antimicrobial chemotherapy; therefore, emergency subtotal colectomy was performed. Fungi detected in both her colon tissue and a drainage sample indicated intestinal mucormycosis. Early intensive treatment with high-dose liposomal amphotericin B was successful, and she was subsequently discharged from the hospital. The fungal isolates were identified to be Lichtheimia ramosa and Aspergillus calidoustus via gene sequencing using panfungal primers as well as species-specific primers against elongation factor 1 and beta-tubulin for detecting Lichtheimia and Aspergillus, respectively.
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Affiliation(s)
- Yukihiro Kaneko
- Department of Bacteriology, Osaka City University Graduate School of Medicine, Japan
- Research Center for Infectious Disease Sciences, Osaka City University Graduate School of Medicine, Japan
| | - Ken-Ichi Oinuma
- Department of Bacteriology, Osaka City University Graduate School of Medicine, Japan
- Research Center for Infectious Disease Sciences, Osaka City University Graduate School of Medicine, Japan
| | - Tsuneko Terachi
- Department of Infection Control Center, Osaka Police Hospital, Japan
| | | | - Mamiko Niki
- Department of Bacteriology, Osaka City University Graduate School of Medicine, Japan
- Research Center for Infectious Disease Sciences, Osaka City University Graduate School of Medicine, Japan
| | - Koichi Yamada
- Research Center for Infectious Disease Sciences, Osaka City University Graduate School of Medicine, Japan
- Department of Infection Control Science, Osaka City University Graduate School of Medicine, Japan
| | - Hiroshi Kakeya
- Research Center for Infectious Disease Sciences, Osaka City University Graduate School of Medicine, Japan
- Department of Infection Control Science, Osaka City University Graduate School of Medicine, Japan
| | - Tetsu Mizutani
- Department of Infection Control Center, Osaka Police Hospital, Japan
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9
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Thielen BK, Barnes AMT, Sabin AP, Huebner B, Nelson S, Wesenberg E, Hansen GT. Widespread Lichtheimia Infection in a Patient with Extensive Burns: Opportunities for Novel Antifungal Agents. Mycopathologia 2018; 184:121-128. [PMID: 29967971 DOI: 10.1007/s11046-018-0281-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 06/21/2018] [Indexed: 03/04/2023]
Abstract
The Mucorales fungi-formerly classified as the zygomycetes-are environmentally ubiquitous fungi, but generally rare causes of clinical infections. In the immunocompromised host, however, they can cause invasive, rapidly spreading infections that confer a high risk of morbidity and mortality, often despite surgical and antifungal therapy. Patients with extensive burn injuries are particularly susceptible to skin and soft-tissue infections with these organisms. Here, we present a case of Lichtheimia infection in a patient with extensive full-thickness burns that required significant and repeated surgical debridement successfully treated with isavuconazole and adjunctive topical amphotericin B washes. We also review the available literature on contemporary antifungal treatment for Lichtheimia species and related Mucorales fungi.
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Affiliation(s)
- Beth K Thielen
- Department of Medicine (Division of Infectious Diseases and International Medicine), University of Minnesota School of Medicine, Minneapolis, MN, 55455, USA. .,Department of Pediatrics (Division of Pediatric Infectious Diseases and Immunology), University of Minnesota School of Medicine, Minneapolis, MN, 55455, USA.
| | - Aaron M T Barnes
- Department of Laboratory Medicine and Pathology, University of Minnesota School of Medicine, Minneapolis, MN, 55455, USA.,Department of Microbiology & Immunology, University of Minnesota School of Medicine, Minneapolis, MN, 55455, USA
| | - Arick P Sabin
- Department of Medicine (Division of Infectious Diseases and International Medicine), University of Minnesota School of Medicine, Minneapolis, MN, 55455, USA
| | - Becky Huebner
- Department of Pathology & Laboratory Medicine, Hennepin County Medical Center, Minneapolis, MN, 55415, USA
| | - Susan Nelson
- Department of Pathology & Laboratory Medicine, Hennepin County Medical Center, Minneapolis, MN, 55415, USA
| | - Elizabeth Wesenberg
- Department of Pathology & Laboratory Medicine, Hennepin County Medical Center, Minneapolis, MN, 55415, USA
| | - Glen T Hansen
- Department of Medicine (Division of Infectious Diseases and International Medicine), University of Minnesota School of Medicine, Minneapolis, MN, 55455, USA.,Department of Laboratory Medicine and Pathology, University of Minnesota School of Medicine, Minneapolis, MN, 55455, USA.,Department of Pathology & Laboratory Medicine, Hennepin County Medical Center, Minneapolis, MN, 55415, USA
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10
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Diversity of mucoralean fungi in soils of papaya (Carica papaya L.) producing regions in Mexico. Fungal Biol 2018; 122:810-816. [PMID: 30007431 DOI: 10.1016/j.funbio.2018.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 04/17/2018] [Indexed: 11/22/2022]
Abstract
Mexico is the fifth largest producer of papaya worldwide and has recently reported problems with mucoralean fungi in this crop. These fungi are considered saprophytes in the soil and are ubiquitous in nature. In this work, they were isolated from soil in regions of intensive papaya cultivation in Mexico. Collections were made in the states of Colima, Oaxaca and Veracruz in Apr 2016. A total of 72 mucorales fungal isolates was obtained and morphologically characterized and then molecular characterization (28S ribosomal region) of 25 representative isolates was carried out. Phylogenetic analysis of the sequences confirmed the presence of the species Gilbertella persicaria, Rhizopus oryzae, Rhizopus stolonifer, Mucor circinelloides and Mucor hiemalis, which cause soft rot in papaya fruits, therefore, spores of these fungi found in the orchard soils can be considered as a constant source of contamination that affects healthy fruits. Additionally, Choanephora cucurbitarum, Mucor ellipsoideus, Rhizopus homothallicus, Rhizopus microsporus, Rhizopus schipperae, Lichteimia ramosa, Gongronella butleri, Cunninghamella bertholletiae and Cunninghamella blakesleeana were identified which are considered to have agricultural, biotechnological and medical importance.
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11
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Chander J, Kaur M, Singla N, Punia RPS, Singhal SK, Attri AK, Alastruey-Izquierdo A, Stchigel AM, Cano-Lira JF, Guarro J. Mucormycosis: Battle with the Deadly Enemy over a Five-Year Period in India. J Fungi (Basel) 2018; 4:jof4020046. [PMID: 29642408 PMCID: PMC6023269 DOI: 10.3390/jof4020046] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 03/31/2018] [Accepted: 04/02/2018] [Indexed: 01/10/2023] Open
Abstract
Mucormycosis is an emerging opportunistic fungal infection. Increasing immunocompromization, widespread use of antibacterial and antifungal agents (such as voriconazole prophylaxis), carcinomas, transplantation and lifestyle diseases such as diabetes are the main contributors to this situation. The predominant clinical manifestations of mucormycosis vary from host to host, with rhino-orbital-cerebral, pulmonary, cutaneous, and gastrointestinal infections being the most common. In India, the prevalence of mucormycosis is approximately 0.14 cases/1000 population, which is about 70 times the worldwide-estimated rate for mucormycosis. The present study was undertaken over a period of five years (January 2009-December 2014) to determine the prevalence of mucormycosis. The samples suspected of mucormycosis were examined by direct KOH wet mount and cultured on Sabouraud's dextrose agar without actidione and on blood agar as per standard mycological techniques. Histopathological correlation was done for most of the cases. Antifungal susceptibility testing was performed by the EUCAST reference method. We identified a total of 82 cases of mucormycosis out of a total of 6365 samples received for mycological culture and examination during the said time period. Out of these, 56 were male patients and 27 were females. Most common presentation was rhino-orbito-cerebral (37), followed by cutaneous (25), pulmonary (14), oral cavity involvement (4) and gastrointestinal (2). The most common risk factors were diabetes and intramuscular injections. The fungi isolated were Rhizopus arrhizus (17), Apophysomyces variabilis (12), R. microsporus (9), Lichtheimia ramosa (8), Saksenaea erythrospora (5), Syncephalastrum racemosus (4), R. homothallicus (2), Rhizomucor pusillus (1), Mucor irregularis (1) and A. elegans (1). The mainstay of the treatment was amphotericin B, along with extensive surgical debridement whenever feasible. Most of the patients (50) recovered, but 25 died. The rest of the patients left against medical advice. "Nip in the Bud" should be the mantra for clinicians/surgeons for a favorable prognosis. Early diagnosis, prompt institution of appropriate antifungal therapy, surgical debridement whenever necessary, knowledge of risk factors and their timely reversal is the key for management.
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Affiliation(s)
- Jagdish Chander
- Departments of Microbiology, Government Medical College Hospital, Sector 32-B, Chandigarh, PIN 160030, India.
| | - Mandeep Kaur
- Departments of Microbiology, Government Medical College Hospital, Sector 32-B, Chandigarh, PIN 160030, India.
| | - Nidhi Singla
- Departments of Microbiology, Government Medical College Hospital, Sector 32-B, Chandigarh, PIN 160030, India.
| | - R P S Punia
- Pathology, Government Medical College Hospital, Sector 32-B, Chandigarh, PIN 160030, India.
| | - Surinder K Singhal
- Otorhinolaryngology, Government Medical College Hospital, Sector 32-B, Chandigarh, PIN 160030, India.
| | - Ashok K Attri
- General Surgery, Government Medical College Hospital, Sector 32-B, Chandigarh, PIN 160030, India.
| | - Ana Alastruey-Izquierdo
- Mycology Reference Laboratory, Spanish National Center for Microbiology, Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Alberto M Stchigel
- Mycology Unit, Medical School and IISPV, Universitat Rovira I Virgili, 43201 Reus, Spain.
| | - Jose F Cano-Lira
- Mycology Unit, Medical School and IISPV, Universitat Rovira I Virgili, 43201 Reus, Spain.
| | - Josep Guarro
- Mycology Unit, Medical School and IISPV, Universitat Rovira I Virgili, 43201 Reus, Spain.
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12
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Fréalle E, Rocchi S, Bacus M, Bachelet H, Pasquesoone L, Tavernier B, Mathieu D, Millon L, Jeanne M. Real-time polymerase chain reaction detection of Lichtheimia species in bandages associated with cutaneous mucormycosis in burn patients. J Hosp Infect 2018; 99:68-74. [PMID: 29432820 DOI: 10.1016/j.jhin.2018.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 02/05/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND Cutaneous mucormycoses, mainly due to Lichtheimia (Absidia), have occurred on several occasions in the Burn Unit of the University Hospital of Lille, France. AIM To investigate the potential vector role of non-sterile bandages used to hold in place sterile gauze used for wound dressing. METHODS Mycological analysis by conventional culture, Mucorales real-time polymerase chain reaction (qPCR), and Lichtheimia species-specific qPCR were performed on eight crepe and six elasticized bandages that were sampled on two independent occasions in March 2014 and July 2016. Characteristics of the seven Lichtheimia mucormycoses which occurred in burn patients between November 2013 and July 2016 were also collected to assess the epidemiological relationship between potentially contaminated bandages and clinical infections. FINDINGS One Lichtheimia corymbifera strain was isolated from a crepe bandage by culture, and Lichtheimia spp. qPCR was positive in six out of eight crepe and four out of six elasticized bandages. Using species-specific qPCR, Lichtheimia ramosa, Lichtheimia ornata, and L. corymbifera were identified in six out of ten, five out of ten, and four out of ten bandages, respectively. In patients with mucormycosis, L. ramosa and L. ornata were present in five and two cases, respectively. CONCLUSION Our data support the utility of Mucorales qPCR for epidemiological investigations, the potential role of these bandages in cutaneous mucormycoses in burn patients in our centre, and, consequently, the need for sterile bandages for the dressing of extensive wounds.
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Affiliation(s)
- E Fréalle
- Université de Lille, U1019 - UMR 8204 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France; CNRS, UMR 8204, F-59000 Lille, France; Inserm, U1019, F-59000 Lille, France; CHU Lille, Laboratoire de Parasitologie-Mycologie, F-59000 Lille, France; Institut Pasteur de Lille, F-59000 Lille, France.
| | - S Rocchi
- Chrono-Environnement UMR 6249 CNRS, Université de Bourgogne Franche-Comté & Laboratoire de Parasitologie-Mycologie, CHU de Besançon, France
| | - M Bacus
- CHU Lille, Pôle d'Anesthésie-Réanimation, Centre de Traitement des Brûlés, F-59000 Lille, France
| | - H Bachelet
- CHU Lille, Pharmacie Centrale, F-59000 Lille, France
| | - L Pasquesoone
- CHU Lille, Service de chirurgie plastique, esthétique et reconstructrice - Centre de Traitement des Brûlés, F-59000 Lille, France
| | - B Tavernier
- CHU Lille, Pôle d'Anesthésie-Réanimation, Centre de Traitement des Brûlés, F-59000 Lille, France
| | - D Mathieu
- CHU Lille, Pôle de Réanimation, F-59000 Lille, France
| | - L Millon
- Chrono-Environnement UMR 6249 CNRS, Université de Bourgogne Franche-Comté & Laboratoire de Parasitologie-Mycologie, CHU de Besançon, France
| | - M Jeanne
- CHU Lille, Pôle d'Anesthésie-Réanimation, Centre de Traitement des Brûlés, F-59000 Lille, France
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13
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Disseminated Lichtheimia ramosa Infection After Hematopoietic Stem Cell Transplantation in a Child With Chronic Granulomatous Disease. Pediatr Infect Dis J 2017; 36:1222-1224. [PMID: 28333712 DOI: 10.1097/inf.0000000000001589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Mucormycosis is uncommon in patients with chronic granulomatous disease (CGD). We report a 7-year-old boy with X-linked CGD and absent oxidative burst who developed fatal Lichtheimia ramosa infection with fungal thrombosis of the kidneys, spleen and other organs after hematopoietic stem cell transplantation. Lichtheimia infection is rarely reported in patients with CGD and could be related to iatrogenic immunosuppression.
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14
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Sequence Base Identification of Respiratory Mucormycosis. Jundishapur J Microbiol 2017. [DOI: 10.5812/jjm.55026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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15
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Increasing incidence of mucormycosis in a large Spanish hospital from 2007 to 2015: Epidemiology and microbiological characterization of the isolates. PLoS One 2017; 12:e0179136. [PMID: 28591186 PMCID: PMC5462442 DOI: 10.1371/journal.pone.0179136] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 05/24/2017] [Indexed: 11/19/2022] Open
Abstract
We studied 19 cases of proven/probable mucormycosis diagnosed from 2007 to 2015 in our hospital and assessed the microbiological characteristics of the isolates. We recorded the incidence of mucormycosis and clinical and microbiological data of infected patients. Isolates were identified to molecular level and tested for their antifungal susceptibility to azoles, amphotericin B, and liposomal amphotericin B according to the CLSI M-38 A2 procedure. The incidence of mucormycosis in cases/100,000 hospital admissions during 2007–2015 increased significantly with respect to that reported in 1988–2006 (3.3 vs. 1.2; P<0.05). Patients mainly had hematological malignancies (52.6%) and/or trauma/surgical wounds (52.6%) and had received antifungal agents before the diagnosis of mucormycosis in 68% of cases. Diagnosis was by isolation (n = 17/19) and/or direct staining (n = 17/18) of Mucorales fungi in clinical samples. Identification was by panfungal PCR in patients with negative results in culture and in direct staining. The microorganisms identified were Lichtheimia spp. (42%), Rhizopus spp. (21%), Cunninghamella bertholletiae (16%), and others (21%). Liposomal amphotericin B was always more active than the other drugs against all the microorganisms except C. bertholletiae. All patients received antifungal treatment with 1 or more antifungal agents, mainly liposomal amphotericin B (17/19). Mortality was 47.4%, although this was significantly lower in the 11 patients in whom debridement was performed (18% vs. 87.5%) (P = 0.015). The incidence of mucormycosis has risen in recent years. The proportion of cases with soft tissue involvement was high, and Lichtheimia was the most frequently involved species. The highest antifungal activity was observed with liposomal amphotericin B.
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16
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Ziaee A, Zia M, Bayat M, Hashemi J. Molecular Identification of Mucor and Lichtheimia Species in Pure Cultures of Zygomycetes. Jundishapur J Microbiol 2016; 9:e35237. [PMID: 27284399 PMCID: PMC4898167 DOI: 10.5812/jjm.35237] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 01/18/2016] [Accepted: 01/18/2016] [Indexed: 12/18/2022] Open
Abstract
Background The Mucorales are an important opportunistic fungi that can cause mucormycosis in immunocompromised patients. The fast and precise diagnosis of mucormycosis is very important because, if the diagnosis is not made early enough, dissemination often occurs. It is now well established that molecular methods such as polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) are feasible and reliable tools for the early and accurate diagnosis of mucormycosis agents. Objectives The present study was conducted to evaluate the validity of PCR-RFLP for the identification of Mucorales and some important Mucor and Lichtheimia species in pure cultures of Zygomycetes. Materials and Methods Specific sense and anti-sense primers were used to amplify the Mucorales, Mucor, and Lichtheimia DNA. The PCR products were digested by AfIII, XmnI, and AcII restriction enzymes, and the resultant restriction pattern was analyzed. Results On the basis of the molecular and morphological data, we identified Mucor plumbeus (10.83%), M. circinelloides (9.17%), Lichtheimia corymbifera (9.17%), M. racemosus (5.83%), M. ramosissimus (3.33%), and L. blakesleeana (0.83%). Conclusions It seems that PCR-RFLP is a suitable technique for the identification of Mucorales at the species level.
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Affiliation(s)
- Ardeshir Ziaee
- Department of Medical and Veterinary Mycology, Faculty of Veterinary Specialized Sciences, Science and Research Branch, Islamic Azad University, Tehran, IR Iran
| | - Mohammadali Zia
- Department of Basic Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, IR Iran
- Corresponding author: Mohammadali Zia, Department of Basic Sciences, Khorasgan (Isfahan) Branch, Islamic Azad University, Isfahan, IR Iran. Tel: +98-9133094852, E-mail:
| | - Mansour Bayat
- Department of Medical and Veterinary Mycology, Faculty of Veterinary Specialized Sciences, Science and Research Branch, Islamic Azad University, Tehran, IR Iran
| | - Jamal Hashemi
- Department of Medical Parasitology and Mycology, Institute of Public Health Research, School of Public Health, Tehran University of Medical Sciences, Tehran, IR Iran
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Marín P, Palmero D, Jurado M. Occurrence of moulds associated with ovine raw milk and cheeses of the Spanish region of Castilla La Mancha. INT J DAIRY TECHNOL 2015. [DOI: 10.1111/1471-0307.12208] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Patricia Marín
- Department of Genetics; Faculty of Biology; Complutense University of Madrid; José Antonio Nováis 12 Madrid 28040 Spain
| | - Daniel Palmero
- Department of Plant Production: Botany and Plant Protection; EUIT Agrícola; Technical University of Madrid; Ciudad Universitaria s/n Madrid 28040 Spain
| | - Miguel Jurado
- Department of Science and Technology applied to Agricultural Engineering; EUIT Agrícola; Technical University of Madrid; Ciudad Universitaria s/n Madrid 28040 Spain
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18
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Schwartze VU, Jacobsen ID. Mucormycoses caused by Lichtheimia species. Mycoses 2014; 57 Suppl 3:73-8. [PMID: 25186921 DOI: 10.1111/myc.12239] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/22/2014] [Accepted: 02/25/2014] [Indexed: 11/26/2022]
Abstract
Mucormycoses are life-threatening infections with fungi from the order Mucorales (Mucoromycotina). Although mucormycoses are uncommon compared to other fungal infections, e.g. aspergillosis and candidiasis, the number of cases is increasing especially in immunocompromised patients. Lichtheimia (formerly Absidia) species represent the second to third most common cause of mucormycoses in Europe. This mini review presents current knowledge about taxonomy and clinical relevance of Lichtheimia species. In addition, clinical presentation and risk factors will be discussed. Proper animal infection models are essential for the understanding of the pathogenesis and the identification of virulence factors of fungal pathogens. To date, several animal models have been used to study Lichtheimia infection. A brief overview of the different models and the main conclusions from the infection experiments is summarised in this review.
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Affiliation(s)
- Volker U Schwartze
- Institute of Microbiology, Department of Microbiology and Molecular Biology, University of Jena, Jena, Germany; Leibniz Institute for Natural Product Research and Infection Biology, Department of Molecular and Applied Microbiology, Hans Knöll Institute, Jena, Germany
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19
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Complete Mitochondrial Genome Sequence of Lichtheimia ramosa (syn. Lichtheimia hongkongensis). GENOME ANNOUNCEMENTS 2014; 2:2/4/e00644-14. [PMID: 24994796 PMCID: PMC4081996 DOI: 10.1128/genomea.00644-14] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the complete mitochondrial genome sequence of Lichtheimia ramosa (syn. Lichtheimia hongkongensis), the first complete mitochondrial DNA sequence of the genus Lichtheimia. This 31.8-kb mitochondrial genome encodes 11 subunits of respiratory chain complexes, 3 ATP synthase subunits, 25 tRNAs, and small and large rRNAs, with the gene order atp9-cox2-atp6-cox3-cox1-nad2-nad3-cob-nad1-nad6-nad5-nad4l-nad4-atp8.
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20
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Thornton CR, Ryder LS, Le Cocq K, Soanes DM. Identifying the emerging human pathogen Scedosporium prolificans by using a species-specific monoclonal antibody that binds to the melanin biosynthetic enzyme tetrahydroxynaphthalene reductase. Environ Microbiol 2014; 17:1023-38. [PMID: 24684242 DOI: 10.1111/1462-2920.12470] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 02/11/2014] [Accepted: 02/18/2014] [Indexed: 12/13/2022]
Abstract
The dematiaceous (melanized) fungus Scedosporium prolificans is an emerging and frequently fatal pathogen of immunocompromised humans and which, along with the closely related fungi Pseudallescheria boydii, Scedosporium apiospermum and S. aurantiacum in the Pseudallescheria-Scedosporium complex, is a contributing aetiology to tsunami lung and central nervous system infections in near-drowning victims who have aspirated water laden with spores. At present, the natural habitat of the fungus is largely unknown, and accurate detection methods are needed to identify environmental reservoirs of infectious propagules. In this study, we report the development of a monoclonal antibody (mAb) (CA4) specific to S. prolificans, which does not cross-react with closely related fungi in the Pseudallescheria-Scedosporium complex or with a wide range of mould and yeast species pathogenic to humans. Using genome sequencing of a soil isolate and targeted gene disruption of the CA4 antigen-encoding gene, we show that mAb CA4 binds to the melanin-biosynthetic enzyme tetrahydroxynaphthalene reductase. Enzyme-deficient mutants produce orange-brown or green-brown spore suspensions compared with the black spore suspension of the wild-type strain. Using mAb CA4 and a mAb (HG12) specific to the related fungi P. boydii, P. apiosperma, S. apiospermum and S. aurantiacum, we demonstrate how the mAbs can be used in combination with a semiselective isolation procedure to track these opportunistic pathogens in environmental samples containing mixed populations of human pathogenic fungi. Specificity of mAb CA4 was confirmed by sequencing of the internally transcribed spacer 1 (ITS1)-5.8S-ITS2 rRNA-encoding regions of fungi isolated from estuarine muds.
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Affiliation(s)
- Christopher R Thornton
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK
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