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Gomes TC, Conrado R, Oliveira RCD, Selari PJRG, Melo ISD, Araújo WL, Maria DA, De Souza AO. Effect of Monocerin, a Fungal Secondary Metabolite, on Endothelial Cells. Toxins (Basel) 2023; 15:toxins15050344. [PMID: 37235378 DOI: 10.3390/toxins15050344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
This study reports the isolation and identification of the endophytic fungus Exserohilum rostratum through molecular and morphological analysis using optical and transmission electron microscopy (TEM), as well as the procurement of its secondary metabolite monocerin, an isocoumarin derivative. Considering the previously observed biological activities of monocerin, this study was performed on human umbilical vein endothelial cells (HUVECs) that are widely used as an in vitro model for several different purposes. Important parameters, such as cell viability, senescence-associated β-galactosidase, cellular proliferation by using 5(6)-carboxyfluorescein diacetate N-succinimidyl ester (CFSE), apoptosis analysis with annexin, cellular morphology through scanning electron microscopy (SEM), and laser confocal analysis were evaluated after exposing the cells to monocerin. After 24 h of exposure to monocerin at 1.25 mM, there was more than 80% of cell viability and a low percentage of cells in the early and late apoptosis and necrosis. Monocerin increased cell proliferation and did not induce cell senescence. Morphological analysis showed cellular integrity. The study demonstrates aspects of the mechanism of action of monocerin on endothelial cell proliferation, suggesting the possibility of its pharmaceutical application, such as in regenerative medicine.
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Affiliation(s)
- Tainah Colombo Gomes
- Development and Innovation Laboratory, Instituto Butantan, Avenida Vital Brasil, 1500, Sao Paulo 05503-900, SP, Brazil
| | - Rafael Conrado
- Development and Innovation Laboratory, Instituto Butantan, Avenida Vital Brasil, 1500, Sao Paulo 05503-900, SP, Brazil
| | - Rodrigo Cardoso de Oliveira
- Department of Biochemical and Pharmaceutical Technology, FCF, University of Sao Paulo, Sao Paulo 05508-000, SP, Brazil
| | | | - Itamar Soares de Melo
- Environmental Microbiology Laboratory, EMBRAPA Meio Ambiente, Jaguariuna 13918-110, SP, Brazil
| | - Welington Luiz Araújo
- Laboratory of Molecular Biology and Microbial Ecology (LABMEM), Microbiology Department, ICB II, University of Sao Paulo, Sao Paulo 05508-000, SP, Brazil
| | - Durvanei Augusto Maria
- Development and Innovation Laboratory, Instituto Butantan, Avenida Vital Brasil, 1500, Sao Paulo 05503-900, SP, Brazil
| | - Ana Olívia De Souza
- Development and Innovation Laboratory, Instituto Butantan, Avenida Vital Brasil, 1500, Sao Paulo 05503-900, SP, Brazil
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Rai M, Ingle AP, Ingle P, Gupta I, Mobin M, Bonifaz A, Alves M. Recent advances on mycotic keratitis caused by dematiaceous hyphomycetes. J Appl Microbiol 2021; 131:1652-1667. [PMID: 33462841 DOI: 10.1111/jam.15008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/31/2020] [Accepted: 01/14/2021] [Indexed: 02/06/2023]
Abstract
Dematiaceous hyphomycetes (DH) are darkly pigmented fungi ubiquitously found all over the world as plant pathogens and saprophytes, and many of the members of this group have emerged as opportunistic pathogens. These fungi are responsible for a wide variety of infections including mycotic keratitis, which is considered as one of the major causes of corneal blindness, particularly in tropical and subtropical countries with an annual global burden of about 1 000 000 patients. The infection is more common in workers working in an outdoor environment. Moreover, trauma is found to be the most important predisposing cause of mycotic keratitis. Considerable delay in diagnosis and scarcity of effective pharmacological drugs are the major factors responsible for increased morbidity and visual impairment. Considering the crucial role of DH in mycotic keratitis, in the present review, we have focused on major DH with special emphasis on their pathogenicity, diagnosis and treatment strategies.
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Affiliation(s)
- M Rai
- Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati, Maharashtra, India
| | - A P Ingle
- Department of Biotechnology, Engineering School of Lorena, University of Sao Paulo, Lorena, SP, Brazil
| | - P Ingle
- Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati, Maharashtra, India
| | - I Gupta
- Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati, Maharashtra, India
| | - M Mobin
- Research Laboratory, University Center UNINOVAFAPI, Teresina, Brazil
| | - A Bonifaz
- Department of Mycology & Dermatology Service, General Hospital of Mexico, Mexico City, Mexico
| | - M Alves
- Department of Ophthalmology, University of Campinas, Campinas, SP, Brazil
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