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Shen H, Cai X, Liu J, Yan G, Ye Y, Dong R, Wu J, Li L, Shen Q, Ma Y, Ou Q, Shen M, Chen W, Lu G. Case report: The clinical utility of metagenomic next-generation sequencing in mucormycosis diagnosis caused by fatal Lichtheimia ramosa infection in pediatric neuroblastoma. Front Pediatr 2023; 11:1130775. [PMID: 37404554 PMCID: PMC10315538 DOI: 10.3389/fped.2023.1130775] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 05/30/2023] [Indexed: 07/06/2023] Open
Abstract
Lichtheimia ramosa (L. ramosa) is an opportunistic fungal pathogen of the order Mucorales that may result in a rare but serious mucormycosis infection. Mucormycosis could be angioinvasive, causing thrombosis and necrosis in the nose, brain, digestive tract, and respiratory tract. The infection is highly lethal, especially in immunocompromised hosts, and the incidence has been on the rise. However, due to its relatively low incidence in pediatric population and the challenges with diagnosis, the awareness and management experience for pediatric mucormycosis are extremely limited, which might lead to poor outcomes. In this study, we comprehensively reviewed the course of a fatal rhinocerebral mucormycosis case in a pediatric neuroblastoma patient receiving chemotherapy. Due to a lack of awareness of the infection, the standard care of amphotericin B treatment was delayed and not administered until the identification of L. ramosa by metagenomic next-generation sequencing (mNGS)-based pan-pathogen detection of the patient's peripheral blood sample. We also reviewed the literature on L. ramosa infection cases reported worldwide between 2010 and 2022, with an analysis of clinical manifestation, prognosis, and epidemiological data. Our study not only highlighted the clinical value of comprehensive mNGS in rapid pathogen detection but also raised awareness of recognizing lethal fungal infection early in immunocompromised hosts including pediatric cancer patients.
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Affiliation(s)
- Huili Shen
- Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, National Center for Children’s Health, Shanghai, China
| | - Xiaodi Cai
- Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, National Center for Children’s Health, Shanghai, China
| | - Jing Liu
- Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, National Center for Children’s Health, Shanghai, China
| | - Gangfeng Yan
- Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, National Center for Children’s Health, Shanghai, China
| | - Ying Ye
- Dermatological Department, Children’s Hospital of Fudan University, National Center for Children’s Health, Shanghai, China
| | - Rui Dong
- Surgical Oncology Department, Children’s Hospital of Fudan University, National Center for Children’s Health, Shanghai, China
| | - Jufang Wu
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China
| | - Li Li
- Lab. of Mycology, Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Quanli Shen
- Radiology Department, Children’s Hospital of Fudan University, National Center for Children’s Health, Shanghai, China
| | - Yutong Ma
- Medical Department, Nanjing Dinfectome Technology Inc., Nanjing, China
| | - Qiuxiang Ou
- Medical Department, Nanjing Dinfectome Technology Inc., Nanjing, China
| | - Meili Shen
- Medical Department, Nanjing Dinfectome Technology Inc., Nanjing, China
| | - Weiming Chen
- Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, National Center for Children’s Health, Shanghai, China
| | - Guoping Lu
- Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, National Center for Children’s Health, Shanghai, China
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Drogari-Apiranthitou M, Skiada A, Panayiotides I, Vyzantiadis TA, Poulopoulou A, Christofidou M, Antoniadou A, Roilides E, Iosifidis E, Mamali V, Argyropoulou A, Sympardi S, Charalampaki N, Antonakos N, Mantzana P, Mastora Z, Nicolatou-Galitis O, Orfanidou M, Pana ZD, Pavleas I, Pefanis A, Sakka V, Spiliopoulou A, Stamouli M, Tofas P, Vagiakou E, Petrikkos G. Epidemiology of Mucormycosis in Greece; Results from a Nationwide Prospective Survey and Published Case Reports. J Fungi (Basel) 2023; 9:425. [PMID: 37108880 PMCID: PMC10142618 DOI: 10.3390/jof9040425] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/25/2023] [Accepted: 03/26/2023] [Indexed: 03/31/2023] Open
Abstract
Mucormycosis has emerged as a group of severe infections mainly in immunocompromised patients. We analysed the epidemiology of mucormycosis in Greece in a multicentre, nationwide prospective survey of patients of all ages, during 2005-2022. A total of 108 cases were recorded. The annual incidence declined after 2009 and appeared stable thereafter, at 0.54 cases/million population. The most common forms were rhinocerebral (51.8%), cutaneous (32.4%), and pulmonary (11.1%). Main underlying conditions were haematologic malignancy/neutropenia (29.9%), haematopoietic stem cell transplantation (4.7%), diabetes mellitus (DM) (15.9%), other immunodeficiencies (23.4%), while 22.4% of cases involved immunocompetent individuals with cutaneous/soft-tissue infections after motor vehicle accident, surgical/iatrogenic trauma, burns, and injuries associated with natural disasters. Additionally, DM or steroid-induced DM was reported as a comorbidity in 21.5% of cases with various main conditions. Rhizopus (mostly R. arrhizus) predominated (67.1%), followed by Lichtheimia (8.5%) and Mucor (6.1%). Antifungal treatment consisted mainly of liposomal amphotericin B (86.3%), median dose 7 mg/kg/day, range 3-10 mg/kg/day, with or without posaconazole. Crude mortality was 62.8% during 2005-2008 but decreased significantly after 2009, at 34.9% (p = 0.02), with four times fewer haematological cases, fewer iatrogenic infections, and fewer cases with advanced rhinocerebral form. The increased DM prevalence should alert clinicians for timely diagnosis of mucormycosis in this patient population.
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Affiliation(s)
- Maria Drogari-Apiranthitou
- Infectious Diseases Research Laboratory, 4th Department of Internal Medicine, Attikon General University Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Anna Skiada
- 1st Department of Internal Medicine, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, Greece
| | - Ioannis Panayiotides
- 2nd Department of Pathology, National and Kapodistrian University of Athens, Medical School, Attikon University Hospital, 12462 Athens, Greece
| | | | - Aikaterina Poulopoulou
- Department of Microbiology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Myrto Christofidou
- Department of Microbiology, University Hospital of Patras, 26504 Patras, Greece
| | - Anastasia Antoniadou
- Infectious Diseases Research Laboratory, 4th Department of Internal Medicine, Attikon General University Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Emmanuel Roilides
- Infectious Diseases Unit, 3nd Department of Paediatrics, School of Medicine, Aristotle University and Hippokration General Hospital, 54642 Thessaloniki, Greece
| | - Elias Iosifidis
- Infectious Diseases Unit, 3nd Department of Paediatrics, School of Medicine, Aristotle University and Hippokration General Hospital, 54642 Thessaloniki, Greece
| | - Vassiliki Mamali
- Department of Microbiology, Tzaneio General Hospital, 18536 Piraeus, Greece
| | - Athina Argyropoulou
- Department of Clinical Microbiology, Evangelismos General Hospital, 10676 Athens, Greece
| | - Styliani Sympardi
- 1st Department of Internal Medicine, Thriasio General Hospital of Eleusis, 19600 Eleusis, Greece
| | - Nikoletta Charalampaki
- Clinical Microbiology Laboratory, Thriasio General Hospital of Eleusis, 19600 Eleusis, Greece
| | - Nikolaos Antonakos
- Infectious Diseases Research Laboratory, 4th Department of Internal Medicine, Attikon General University Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Paraskevi Mantzana
- Department of Microbiology, AHEPA University Hospital, 54636 Thessaloniki, Greece
| | - Zafeiria Mastora
- 1st Department of Critical Care Medicine and Pulmonary Services, Evangelismos Hospital, National and Kapodistrian University of Athens Medical School, 10676 Athens, Greece
| | | | - Maria Orfanidou
- Clinical Microbiology Laboratory, General Hospital of Athens Georgios Gennimatas, 11527 Athens, Greece
| | - Zoi-Dorothea Pana
- School of Medicine, European University of Cyprus, Nicosia 2404, Cyprus
| | - Ioannis Pavleas
- Intensive Care Unit, Laiko General Hospital, 11527 Athens, Greece
| | - Angelos Pefanis
- Department of Internal Medicine, Sotiria General and Chest Diseases Hospital of Athens, 11527 Athens, Greece
| | - Vissaria Sakka
- 3rd Department of Internal Medicine, Sotiria General and Chest Diseases Hospital of Athens, 11527 Athens, Greece
| | | | - Maria Stamouli
- 2nd Department of Internal Medicine, Propaedeutic, Haematology Unit, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | | | - Eleni Vagiakou
- Clinical Microbiology Laboratory, General Hospital of Athens Georgios Gennimatas, 11527 Athens, Greece
| | - George Petrikkos
- Infectious Diseases Research Laboratory, 4th Department of Internal Medicine, Attikon General University Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
- School of Medicine, European University of Cyprus, Nicosia 2404, Cyprus
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3
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Paraschou G, Cook JM, Priestnall SL, Evans NJ, Staton GJ, Paterson GK, Winkler B, Whitbread TJ. Treponema spp. spirochetes and keratinopathogenic fungi isolated from keratomas in donkeys. Vet Pathol 2023; 60:190-198. [PMID: 36565270 DOI: 10.1177/03009858221144730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Keratoma is an aberrant keratin mass thought to originate from epidermal horn-producing cells interposed between the stratum medium of the hoof wall and the underlying third phalanx. The cause is unknown, although the presence of keratomas is frequently associated with chronic irritation, focal infection, or trauma. A total of 167 donkeys with keratomas were presented in this study. The diagnosis of a keratoma was based on clinical signs, radiography, and histopathologic examination. Surgical excision was attempted on all donkeys with lameness unless euthanasia was advised. Histopathologic examination, including Giemsa, periodic acid Schiff, and Young's silver special histochemical stains, was performed and showed the presence of fungal hyphae and spirochete bacteria within the degenerate keratin. Polymerase chain reaction (PCR) for treponeme bacteria was performed on 10 keratoma lesions and 9 healthy pieces of hoof (controls). All healthy donkey tissues were negative for the 3 recognized digital dermatitis (DD) treponeme phylogroups, whereas 3 of 10 (30%) donkey keratoma samples were positive for one of the DD treponeme phylogroups. Routine fungal culture and PCR for fungi were performed on 8 keratoma lesions and 8 healthy pieces of hoof (controls). Keratinopathogenic fungi were detected in 1 of 8 (12.5%) keratomas, while only non-keratinopathogenic, environmental fungi were detected in 8 control healthy hoof samples. This is the first time the DD treponemes phylogroup and keratinopathogenic fungi have been detected in keratomas. Further studies are required to assess the significance of this finding.
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Affiliation(s)
- Georgios Paraschou
- The Donkey Sanctuary, Devon, UK.,Royal Veterinary College, Hatfield, UK.,Ross University School of Veterinary Medicine, Basseterre, Saint Kitts and Nevis
| | | | | | - Nicholas J Evans
- University of Liverpool School of Veterinary Science, Liverpool, UK
| | - Gareth J Staton
- University of Liverpool School of Veterinary Science, Liverpool, UK
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4
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William A, Kaur R, Rawat D, Kandir NSS, Sharma A. Necrotizing fasciitis in neonate by Lichtheimia ramosa : A case study. Access Microbiol 2022; 4:000327. [PMID: 35693464 PMCID: PMC9175980 DOI: 10.1099/acmi.0.000327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 01/11/2022] [Indexed: 11/18/2022] Open
Abstract
Zygomycetes have been known to cause life-threatening infections in humans which are often difficult to treat. We present a rare case of cutaneous mucormycosis in a premature neonate admitted with neonatal sepsis and necrotizing fasciitis. He was diagnosed with Lichtheimia ramosa infection and managed surgically along with Amphotericin B. Low birth weight, prematurity, respiratory distress, administration of corticosteroid and broad spectrum antibiotics were identified as the potential risk factors in this case which had led to the fungal infection. Early diagnosis and prompt management is critical in prevention of morbidity and mortality associated with the disease.
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Affiliation(s)
- Ashish William
- Department of Microbiology, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
- *Correspondence: Ashish William,
| | - Ravinder Kaur
- Department of Microbiology, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
| | - Deepti Rawat
- Department of Microbiology, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
| | - Neelam S. S. Kandir
- Department of Microbiology, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
| | - Akanksha Sharma
- Department of Microbiology, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
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5
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Abd El-Rahim WM, Abdel Azeiz AZ, Moawad H, Sadowsky MJ. Identification and characterization of two peroxidases from Lichtheimia corymbifera. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.01.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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6
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Viñuela L, Domínguez-Gil M, de Frutos M, López-Urrutia L, Ramos C, Eiros JM. [Uncommon mycoses]. Rev Iberoam Micol 2019; 36:41-43. [PMID: 30686746 DOI: 10.1016/j.riam.2018.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/06/2018] [Accepted: 07/30/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Fungal infections should be suspected in severe wounds that have been contaminated with organic material or soil, even when the patient is immunocompetent. The aim of this article is to contribute to a better understanding and knowledge of the antifungal sensitivity and epidemiology of some rare pathogens that may trigger severe infections. CASE REPORT Four different moulds were isolated from the wounds of an immunocompetent woman who was involved in a road accident: Lichtheimia corymbifera, Scedosporium boydii, Fusarium solani and Purpureocillium lilacinum. Some of them were isolated from different sites. A profile of in vitro resistance was performed with an Epsilometer (Etest™) using five antifungal agents: voriconazole, posaconazole, itraconazole, anidulafungin an amphotericin B. The results obtained were consistent with those from other cases reported in the literature. CONCLUSIONS Early aggressive surgery, antifungal therapy and, above all, frequent debridement of necrotic tissue, are the tools against filamentous fungi infections. Antifungal sensitivity of any mould involved in an infection has to be determined, in order to a better understanding of these rare pathogens whose incidence is increasing.
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Affiliation(s)
- Lourdes Viñuela
- Servicio de Microbiología y Parasitología, Hospital Universitario Río Hortega, Valladolid, España.
| | - Marta Domínguez-Gil
- Servicio de Microbiología y Parasitología, Hospital Universitario Río Hortega, Valladolid, España
| | - Mónica de Frutos
- Servicio de Microbiología y Parasitología, Hospital Universitario Río Hortega, Valladolid, España
| | - Luis López-Urrutia
- Servicio de Microbiología y Parasitología, Hospital Universitario Río Hortega, Valladolid, España
| | - Carmen Ramos
- Servicio de Microbiología y Parasitología, Hospital Universitario Río Hortega, Valladolid, España
| | - José María Eiros
- Servicio de Microbiología y Parasitología, Hospital Universitario Río Hortega, Valladolid, España
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7
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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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8
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Reynaldi FJ, Giacoboni G, Córdoba SB, Romero J, Reinoso EH, Abrantes R. kMucormicosys due to Saksenaea vasiformis in a dog. Med Mycol Case Rep 2017; 16:4-7. [PMID: 28386526 PMCID: PMC5374849 DOI: 10.1016/j.mmcr.2017.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/06/2017] [Accepted: 03/21/2017] [Indexed: 11/19/2022] Open
Abstract
A 2-year-old female Border collie was examined for dermatitis with a partial alopecic zone around her left front member. Six months later the lesion became swollen, alopecic with ulcerated areas. Microscopy analysis of samples showed numerous non-septate, branching, thin-walled and irregular shaped hyphal elements. Fungal cultures and molecular studies identified Saksenaea vasiformis. Treatments with griseofulvin, itraconazole and surgical debridement were used, however, fourteen months later the dog was euthanatized because of the unfavorable clinical outcome.
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Affiliation(s)
- Francisco J. Reynaldi
- CCT-CONICET La Plata, Buenos Aires, La Plata 1900, Argentina
- Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, Cátedra de Micología Médica e Industrial, La Plata 1900, Argentina
- Corresponding author at: CCT-CONICET La Plata, Buenos Aires, La Plata 1900, Argentina.
| | - Gabriela Giacoboni
- Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, Departamento de Microbiologia, La Plata 1900, Argentina
| | - Susana B. Córdoba
- Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, Cátedra de Micología Médica e Industrial, La Plata 1900, Argentina
- Instituto Nacional de Enfermedades Infecciosas-ANLIS, “Dr. C. G. Malbrán”, Departamento Micología, Caba 1281, Argentina
| | - Julián Romero
- Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata 1900, Argentina
| | - Enso H. Reinoso
- Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, Cátedra de Micología Médica e Industrial, La Plata 1900, Argentina
| | - Ruben Abrantes
- Instituto Nacional de Enfermedades Infecciosas-ANLIS, “Dr. C. G. Malbrán”, Departamento Micología, Caba 1281, Argentina
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9
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Min B, Park JH, Park H, Shin HD, Choi IG. Genome Analysis of a Zygomycete Fungus Choanephora cucurbitarum Elucidates Necrotrophic Features Including Bacterial Genes Related to Plant Colonization. Sci Rep 2017; 7:40432. [PMID: 28091548 PMCID: PMC5238444 DOI: 10.1038/srep40432] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 11/11/2016] [Indexed: 12/19/2022] Open
Abstract
A zygomycete fungus, Choanephora cucurbitarum is a plant pathogen that causes blossom rot in cucurbits and other plants. Here we report the genome sequence of Choanephora cucurbitarum KUS-F28377 isolated from squash. The assembled genome has a size of 29.1 Mbp and 11,977 protein-coding genes. The genome analysis indicated that C. cucurbitarum may employ a plant pathogenic mechanism similar to that of bacterial plant pathogens. The genome contained 11 genes with a Streptomyces subtilisin inhibitor-like domain, which plays an important role in the defense against plant immunity. This domain has been found only in bacterial genomes. Carbohydrate active enzyme analysis detected 312 CAZymes in this genome where carbohydrate esterase family 6, rarely found in dikaryotic fungal genomes, was comparatively enriched. The comparative genome analysis showed that the genes related to sexual communication such as the biosynthesis of β-carotene and trisporic acid were conserved and diverged during the evolution of zygomycete genomes. Overall, these findings will help us to understand how zygomycetes are associated with plants.
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Affiliation(s)
- Byoungnam Min
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Ji-Hyun Park
- Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Hongjae Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Hyeon-Dong Shin
- Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - In-Geol Choi
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
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10
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Teixeira MM, de Almeida LGP, Kubitschek-Barreira P, Alves FL, Kioshima ÉS, Abadio AKR, Fernandes L, Derengowski LS, Ferreira KS, Souza RC, Ruiz JC, de Andrade NC, Paes HC, Nicola AM, Albuquerque P, Gerber AL, Martins VP, Peconick LDF, Neto AV, Chaucanez CB, Silva PA, Cunha OL, de Oliveira FFM, dos Santos TC, Barros ALN, Soares MA, de Oliveira LM, Marini MM, Villalobos-Duno H, Cunha MML, de Hoog S, da Silveira JF, Henrissat B, Niño-Vega GA, Cisalpino PS, Mora-Montes HM, Almeida SR, Stajich JE, Lopes-Bezerra LM, Vasconcelos ATR, Felipe MSS. Comparative genomics of the major fungal agents of human and animal Sporotrichosis: Sporothrix schenckii and Sporothrix brasiliensis. BMC Genomics 2014; 15:943. [PMID: 25351875 PMCID: PMC4226871 DOI: 10.1186/1471-2164-15-943] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 09/25/2014] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The fungal genus Sporothrix includes at least four human pathogenic species. One of these species, S. brasiliensis, is the causal agent of a major ongoing zoonotic outbreak of sporotrichosis in Brazil. Elsewhere, sapronoses are caused by S. schenckii and S. globosa. The major aims on this comparative genomic study are: 1) to explore the presence of virulence factors in S. schenckii and S. brasiliensis; 2) to compare S. brasiliensis, which is cat-transmitted and infects both humans and cats with S. schenckii, mainly a human pathogen; 3) to compare these two species to other human pathogens (Onygenales) with similar thermo-dimorphic behavior and to other plant-associated Sordariomycetes. RESULTS The genomes of S. schenckii and S. brasiliensis were pyrosequenced to 17x and 20x coverage comprising a total of 32.3 Mb and 33.2 Mb, respectively. Pair-wise genome alignments revealed that the two species are highly syntenic showing 97.5% average sequence identity. Phylogenomic analysis reveals that both species diverged about 3.8-4.9 MYA suggesting a recent event of speciation. Transposable elements comprise respectively 0.34% and 0.62% of the S. schenckii and S. brasiliensis genomes and expansions of Gypsy-like elements was observed reflecting the accumulation of repetitive elements in the S. brasiliensis genome. Mitochondrial genomic comparisons showed the presence of group-I intron encoding homing endonucleases (HE's) exclusively in S. brasiliensis. Analysis of protein family expansions and contractions in the Sporothrix lineage revealed expansion of LysM domain-containing proteins, small GTPases, PKS type1 and leucin-rich proteins. In contrast, a lack of polysaccharide lyase genes that are associated with decay of plants was observed when compared to other Sordariomycetes and dimorphic fungal pathogens, suggesting evolutionary adaptations from a plant pathogenic or saprobic to an animal pathogenic life style. CONCLUSIONS Comparative genomic data suggest a unique ecological shift in the Sporothrix lineage from plant-association to mammalian parasitism, which contributes to the understanding of how environmental interactions may shape fungal virulence. . Moreover, the striking differences found in comparison with other dimorphic fungi revealed that dimorphism in these close relatives of plant-associated Sordariomycetes is a case of convergent evolution, stressing the importance of this morphogenetic change in fungal pathogenesis.
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Affiliation(s)
- Marcus M Teixeira
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | | | - Paula Kubitschek-Barreira
- />Departamento de Biologia Celular, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - Fernanda L Alves
- />Departamento de Microbiologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG Brazil
- />Grupo Informática de Biossistemas, Centro de Pesquisas René Rachou, FIOCRUZ, Minas, Belo Horizonte, MG Brazil
| | - Érika S Kioshima
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
- />Departamento de Análises Clínicas, Universidade Estadual de Maringá, Maringá, PR Brazil
| | - Ana KR Abadio
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | - Larissa Fernandes
- />Programa de Pós-Graduação em Ciências e Tecnologias em Saúde, Universidade de Brasília, Ceilândia, Brasília, DF Brazil
| | - Lorena S Derengowski
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | - Karen S Ferreira
- />Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Campus Diadema, São Paulo, SP Brazil
| | - Rangel C Souza
- />Laboratório Nacional de Computação Científica, Petrópolis, RJ Brazil
| | - Jeronimo C Ruiz
- />Grupo Informática de Biossistemas, Centro de Pesquisas René Rachou, FIOCRUZ, Minas, Belo Horizonte, MG Brazil
| | - Nathalia C de Andrade
- />Departamento de Biologia Celular, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - Hugo C Paes
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | - André M Nicola
- />Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF Brazil
- />Programa de pós-graduação em Medicina Tropical, Universidade de Brasília, Brasília, DF Brazil
| | - Patrícia Albuquerque
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
- />Programa de pós-graduação em Medicina Tropical, Universidade de Brasília, Brasília, DF Brazil
| | | | - Vicente P Martins
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | - Luisa DF Peconick
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | - Alan Viggiano Neto
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | - Claudia B Chaucanez
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | - Patrícia A Silva
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | - Oberdan L Cunha
- />Laboratório Nacional de Computação Científica, Petrópolis, RJ Brazil
| | | | - Tayná C dos Santos
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | - Amanda LN Barros
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
| | - Marco A Soares
- />Departamento de Microbiologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG Brazil
| | - Luciana M de Oliveira
- />Departamento de Microbiologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG Brazil
- />Programa de pós-graduação em Bioinformática, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Marjorie M Marini
- />Departamento de Microbiologia Imunobiologia e Parasitologia, Universidade Federal de São Paulo, São Paulo, SP Brazil
| | - Héctor Villalobos-Duno
- />Centro de Microbiología y Biología Celular, Instituto Venezolano de Investigaciones Cientificas, Caracas, Venezuela
| | - Marcel ML Cunha
- />Departamento de Biologia Celular, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - Sybren de Hoog
- />CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
| | - José F da Silveira
- />Departamento de Microbiologia Imunobiologia e Parasitologia, Universidade Federal de São Paulo, São Paulo, SP Brazil
| | - Bernard Henrissat
- />Centre National de la Recherche Scientifique, Aix-Marseille, Université, CNRS, Marseille, France
| | - Gustavo A Niño-Vega
- />Centro de Microbiología y Biología Celular, Instituto Venezolano de Investigaciones Cientificas, Caracas, Venezuela
| | - Patrícia S Cisalpino
- />Grupo Informática de Biossistemas, Centro de Pesquisas René Rachou, FIOCRUZ, Minas, Belo Horizonte, MG Brazil
| | | | - Sandro R Almeida
- />Departamento de Análises Clínicas e Toxicológicas, Universidade de São Paulo, São Paulo, SP Brazil
| | - Jason E Stajich
- />Department of Plant Pathology & Microbiology, University of California, Riverside, CA USA
| | - Leila M Lopes-Bezerra
- />Departamento de Biologia Celular, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | | | - Maria SS Felipe
- />Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF Brazil
- />Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF Brazil
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Primary Cutaneous Mucormycosis in a Patient with Burn Wounds Due to Lichtheimia ramosa. Mycopathologia 2014; 178:291-5. [DOI: 10.1007/s11046-014-9805-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 08/20/2014] [Indexed: 02/07/2023]
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