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Al-Odaini N, Pan KS, Liao LW, Mo NF, Jiang ZW, Li TT, Li XY, He XJ, Zheng DY, Cao CW. Experimental Phaeohyphomycosis of Curvularia lunata. J Clin Med 2022; 11:jcm11185393. [PMID: 36143037 PMCID: PMC9505888 DOI: 10.3390/jcm11185393] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/03/2022] [Accepted: 09/05/2022] [Indexed: 12/02/2022] Open
Abstract
Originally considered to be a plant pathogen, reports of phaeohyphomycosis due to Curvularia lunata (C. lunata) in animals and humans are increasing. However, studies on the pathogenesis, virulence, and epidemiology of C. lunata have rarely been discussed. In the present study, BALB/c mice were experimentally inoculated with C. lunata suspension by different routes and the course of infection was evaluated. In addition, the in vitro antifungal susceptibility of C. lunata against six commonly used antifungals was evaluated using the microdilution method. Inoculation resulted in skin lesions in animals inoculated intraperitonially and subcutaneously. Infection was confirmed by both mycological and histopathologic examination. C. lunata spores and hyphae were detected in the histopathologic sections stained with hexamine silver staining. In addition, voriconazole (VRC) demonstrated greater activity against C. lunata when compared to the other antifungals, whereas fluconazole (FLC) was the least active antifungal with a minimum inhibitory concentration (MIC) range of 8–16 μg/mL. Further studies are necessary to understand the pathogenicity of C. lunata and uncover the mystery of this fungus.
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Affiliation(s)
- Najwa Al-Odaini
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning 530021, China
| | - Kai-su Pan
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning 530021, China
| | - Liu-wei Liao
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning 530021, China
| | - Nan-fang Mo
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning 530021, China
| | - Zhi-wen Jiang
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning 530021, China
| | - Tian-tian Li
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning 530021, China
| | - Xiu-ying Li
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning 530021, China
| | - Xiao-juan He
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning 530021, China
| | - Dong-yan Zheng
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning 530021, China
| | - Cun-wei Cao
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning 530021, China
- Correspondence: ; Tel.: +86-771-5356514; Fax: +86-21-64085875
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