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Zhao C, Qu J, Peng F, Lu R, Bao GH, Huang B, Hu F. Cyclic Peptides from the Opportunistic Pathogen Basidiobolus meristosporus. JOURNAL OF NATURAL PRODUCTS 2023; 86:1885-1890. [PMID: 37550948 DOI: 10.1021/acs.jnatprod.2c01097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Three new cyclic peptides, meristosporins A, B, and C (1-3), one of which features an unusual amino acid, were isolated from the opportunistic pathogen Basidiobolus meristosporus and identified by 1D, 2D NMR, MS/MS, and Marfey's analysis. The biosynthetic pathway of the hexapeptide meristosporin A (1) was deduced based on nonribosomal peptide synthetase gene clusters analysis. Compounds 1 and 2 showed cytotoxicity to RAW264.7 and 293T cells, respectively. These compounds may be involved in the fungal injury caused to human cells.
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Affiliation(s)
- Cheng Zhao
- Engineering Research Center of Fungal Biotechnology, Ministry of Education; Research Center on Entomogenous Fungi, Anhui Agricultural University, Hefei, Anhui Province 230036, People's Republic of China
| | - Jiaojiao Qu
- Engineering Research Center of Fungal Biotechnology, Ministry of Education; Research Center on Entomogenous Fungi, Anhui Agricultural University, Hefei, Anhui Province 230036, People's Republic of China
| | - Fan Peng
- Engineering Research Center of Fungal Biotechnology, Ministry of Education; Research Center on Entomogenous Fungi, Anhui Agricultural University, Hefei, Anhui Province 230036, People's Republic of China
| | - Ruili Lu
- Engineering Research Center of Fungal Biotechnology, Ministry of Education; Research Center on Entomogenous Fungi, Anhui Agricultural University, Hefei, Anhui Province 230036, People's Republic of China
| | - Guan-Hu Bao
- Natural Products Laboratory, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui Province 230036, People's Republic of China
| | - Bo Huang
- Engineering Research Center of Fungal Biotechnology, Ministry of Education; Research Center on Entomogenous Fungi, Anhui Agricultural University, Hefei, Anhui Province 230036, People's Republic of China
| | - Fenglin Hu
- Engineering Research Center of Fungal Biotechnology, Ministry of Education; Research Center on Entomogenous Fungi, Anhui Agricultural University, Hefei, Anhui Province 230036, People's Republic of China
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Martini F, Seehusen F, Krudewig C, Beckmann KM, Favrot C, Fischer NM, Guenova E, Rostaher A. Phaeohyphomycosis caused by Phialophora americana in a dog. Vet Dermatol 2022; 33:446-449. [PMID: 35641851 DOI: 10.1111/vde.13096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 03/15/2022] [Accepted: 03/29/2022] [Indexed: 11/28/2022]
Abstract
Phaeohyphomycosis was diagnosed in a 6-year-old, male castrated Dachshund on immunosuppressive treatment. The fungus was identified by culture and PCR as Phialophora americana. This is the first reported case of infection with this pathogen in a dog. The infection was successfully managed medically, without surgical intervention.
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Affiliation(s)
- Franco Martini
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Frauke Seehusen
- Institute for Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Christiane Krudewig
- Institute for Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Katrin M Beckmann
- Neurology Department, Clinic for Small Animal Surgery, Vetsuisse Faculty Zurich, Zurich, Switzerland
| | - Claude Favrot
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Nina M Fischer
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Emmanuella Guenova
- Department of Dermatology, University Hospital Lausanne and Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Ana Rostaher
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
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