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Morgan FC, Chelliah MP, Andrasik WJ, Piliang M. Epidermal extension of hyphae from vessels in a case of disseminated fusariosis. J Cutan Pathol 2021; 49:917-920. [PMID: 34632617 DOI: 10.1111/cup.14136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 08/16/2021] [Accepted: 09/09/2021] [Indexed: 11/25/2022]
Affiliation(s)
| | | | - Wyatt J Andrasik
- Department of Dermatology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Melissa Piliang
- Department of Dermatology, Cleveland Clinic, Cleveland, Ohio, USA
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Costa MI, Vilugron Rodrigues FA, Veiga FF, Jarros IC, Kischkel B, Negri M, Alexandrino Becker TC, Svidzinski TIE. Effects of intratracheal Fusarium solani inoculation in immunocompetent mice. Microb Pathog 2019; 128:317-322. [PMID: 30660735 DOI: 10.1016/j.micpath.2019.01.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 01/10/2019] [Accepted: 01/16/2019] [Indexed: 12/20/2022]
Abstract
Fusariosis is an infection that is caused by fungi of the Fusarium genus. It is the second most common fungus that is associated with human fungal infections, usually in immunocompromised individuals. The incidence of such infections has been increasing, including in immunocompetent hosts. Studies of host-pathogen interactions are scarce, and the pathophysiology of the disease is unknown. One limitation of such studies is the lack of adequate techniques for mammalian infection, in which no standardized protocols have been established with fungi with a focus on the respiratory tract. The aim of the present study was to assess the first 24 h of infection after the intratracheal inoculation of F. solani microconidia in immunocompetent mice. Colony-forming units (CFU) were counted, and histopathological analysis was performed. Under conditions of high fungal burden, F. solani caused lethal tissue damage in the lungs. Under conditions of low fungal burden, the infection was not lethal, but several alterations of pulmonary tissue and the presence of the fungus in the lungs were observed. No evidence of fungal dissemination was found in the kidneys, spleen, liver, or heart 24 h after infection. The present intratracheal model effectively established fungal infection and appears to be suitable for studies of Fusarium spp.
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Affiliation(s)
- Maiara Ignacio Costa
- Department of Clinical Analysis and Biomedicine, Laboratory of Medical Mycology, State University of Maringá, Brazil, Avenida. Colombo, 5790, CEP: 87020-900, Maringá, Paraná, Brazil
| | - Franciele Abigail Vilugron Rodrigues
- Department of Clinical Analysis and Biomedicine, Laboratory of Medical Mycology, State University of Maringá, Brazil, Avenida. Colombo, 5790, CEP: 87020-900, Maringá, Paraná, Brazil
| | - Flávia Franco Veiga
- Department of Clinical Analysis and Biomedicine, Laboratory of Medical Mycology, State University of Maringá, Brazil, Avenida. Colombo, 5790, CEP: 87020-900, Maringá, Paraná, Brazil
| | - Isabele Carrilho Jarros
- Department of Clinical Analysis and Biomedicine, Laboratory of Medical Mycology, State University of Maringá, Brazil, Avenida. Colombo, 5790, CEP: 87020-900, Maringá, Paraná, Brazil
| | - Brenda Kischkel
- Department of Clinical Analysis and Biomedicine, Laboratory of Medical Mycology, State University of Maringá, Brazil, Avenida. Colombo, 5790, CEP: 87020-900, Maringá, Paraná, Brazil
| | - Melyssa Negri
- Department of Clinical Analysis and Biomedicine, Laboratory of Medical Mycology, State University of Maringá, Brazil, Avenida. Colombo, 5790, CEP: 87020-900, Maringá, Paraná, Brazil
| | - Tânia Cristina Alexandrino Becker
- Department of Basic Health Sciences, Laboratory of General Pathology, State University of Maringá, Brazil, Avenida. Colombo, 5790, CEP: 87020-900, Maringá, Paraná, Brazil
| | - Terezinha Inez Estivalet Svidzinski
- Department of Clinical Analysis and Biomedicine, Laboratory of Medical Mycology, State University of Maringá, Brazil, Avenida. Colombo, 5790, CEP: 87020-900, Maringá, Paraná, Brazil.
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Schäfer K, Di Pietro A, Gow NAR, MacCallum D. Murine model for Fusarium oxysporum invasive fusariosis reveals organ-specific structures for dissemination and long-term persistence. PLoS One 2014; 9:e89920. [PMID: 24587124 PMCID: PMC3937399 DOI: 10.1371/journal.pone.0089920] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 01/28/2014] [Indexed: 12/04/2022] Open
Abstract
The soil-borne plant pathogen Fusarium oxysporum causes life-threatening invasive fusariosis in immunocompromised individuals. The mechanism of infection in mammalian hosts is largely unknown. In the present study we show that the symptoms of disseminated fusariosis caused by F. oxysporum in immunosuppressed mice are remarkably similar to those reported in humans. Distinct fungal structures were observed inside the host, depending on the infected organ. Invasive hyphae developed in the heart and kidney, causing massive colonization of the organs. By contrast, chlamydospore-like survival structures were found in lung, spleen and liver. Systemically infected mice also developed skin and eye infections, as well as thrombosis and necrosis in the tail. We further show that F. oxysporum can disseminate and persist in the organs of immunocompetent animals, and that these latent infections can lead to lethal systemic fusariosis if the host is later subjected to immunosuppressive treatment.
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Affiliation(s)
- Katja Schäfer
- Departamento de Genética, Universidad de Córdoba, Córdoba, Spain
- * E-mail:
| | | | - Neil A. R. Gow
- Aberdeen Fungal Group, Institute of Medical Sciences, Aberdeen, United Kingdom
| | - Donna MacCallum
- Aberdeen Fungal Group, Institute of Medical Sciences, Aberdeen, United Kingdom
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Muhammed M, Anagnostou T, Desalermos A, Kourkoumpetis TK, Carneiro HA, Glavis-Bloom J, Coleman JJ, Mylonakis E. Fusarium infection: report of 26 cases and review of 97 cases from the literature. Medicine (Baltimore) 2013; 92:305-316. [PMID: 24145697 PMCID: PMC4553992 DOI: 10.1097/md.0000000000000008] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Fusarium species is a ubiquitous fungus that causes opportunistic infections. We present 26 cases of invasive fusariosis categorized according to the European Organization for Research and Treatment of Cancer/Mycoses Study Group (EORTC/MSG) criteria of fungal infections. All cases (20 proven and 6 probable) were treated from January 2000 until January 2010. We also review 97 cases reported since 2000. The most important risk factors for invasive fusariosis in our patients were compromised immune system, specifically lung transplantation (n = 6) and hematologic malignancies (n = 5), and burns (n = 7 patients with skin fusariosis), while the most commonly infected site was the skin in 11 of 26 patients. The mortality rates among our patients with disseminated, skin, and pulmonary fusariosis were 50%, 40%, and 37.5%, respectively. Fusarium solani was the most frequent species, isolated from 49% of literature cases. Blood cultures were positive in 82% of both current study and literature patients with disseminated fusariosis, while the remaining 16% had 2 noncontiguous sites of infection but negative blood cultures. Surgical removal of focal lesions was effective in both current study and literature cases. Skin lesions in immunocompromised patients should raise the suspicion for skin or disseminated fusariosis. The combination of medical monotherapy with voriconazole or amphotericin B and surgery in such cases is highly suggested.
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Affiliation(s)
- Maged Muhammed
- From the Division of Infectious Diseases (MM, TA, AD, TKK, HAC, JG-B, JJC, EM), Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts; and Division of Infectious Diseases (TA, JJC, EM), Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, Rhode Island
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