Cargando…
Cellular Cytotoxicity and Oxidative Potential of Recurrent Molds of the Genus Aspergillus Series Versicolores
Molds are ubiquitous biological pollutants in bioaerosols. Among these molds, the genus Aspergillus is found in the majority of indoor air samples, and includes several species with pathogenic and toxigenic properties. Aspergillus species in the series Versicolores remain little known despite recurr...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8875557/ https://www.ncbi.nlm.nih.gov/pubmed/35208683 http://dx.doi.org/10.3390/microorganisms10020228 |
_version_ | 1784657945004343296 |
---|---|
author | Géry, Antoine Lepetit, Charlie Heutte, Natacha Séguin, Virginie Bonhomme, Julie Garon, David |
author_facet | Géry, Antoine Lepetit, Charlie Heutte, Natacha Séguin, Virginie Bonhomme, Julie Garon, David |
author_sort | Géry, Antoine |
collection | PubMed |
description | Molds are ubiquitous biological pollutants in bioaerosols. Among these molds, the genus Aspergillus is found in the majority of indoor air samples, and includes several species with pathogenic and toxigenic properties. Aspergillus species in the series Versicolores remain little known despite recurrence in bioaerosols. In order to investigate their toxicity, we studied 22 isolates of clinical and environmental origin, corresponding to seven different species of the series Versicolores. Spore suspensions and ethyl acetate extracts prepared from fungal isolates were subjected to oxidative potential measurement using the dithiothreitol (DTT) test and cell survival measurement. The DTT tests showed that all species of the series Versicolores had an oxidative potential, either by their spores (especially for Aspergillus jensenii) or by the extracts (especially from Aspergillus amoenus). Measurements of cell survival of A549 and HaCaT cell lines showed that only the spore suspension containing 10(5) spores/mL of Aspergillus jensenii caused a significant decrease in survival after 72 h of exposure. The same tests performed with mixtures of 10(5) spores/mL showed a potentiation of the cytotoxic effect, with a significant decrease in cell survival for mixtures containing spores of two species (on A549 cells, p = 0.05 and HaCaT cells, p = 0.001) or three different species (on HaCaT cells, p = 0.05). Cell survival assays after 72 h of exposure to the fungal extracts showed that Aspergillus puulaauensis extract was the most cytotoxic (IC50 < 25 µg/mL), while Aspergillus fructus caused no significant decrease in cell survival. |
format | Online Article Text |
id | pubmed-8875557 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-88755572022-02-26 Cellular Cytotoxicity and Oxidative Potential of Recurrent Molds of the Genus Aspergillus Series Versicolores Géry, Antoine Lepetit, Charlie Heutte, Natacha Séguin, Virginie Bonhomme, Julie Garon, David Microorganisms Article Molds are ubiquitous biological pollutants in bioaerosols. Among these molds, the genus Aspergillus is found in the majority of indoor air samples, and includes several species with pathogenic and toxigenic properties. Aspergillus species in the series Versicolores remain little known despite recurrence in bioaerosols. In order to investigate their toxicity, we studied 22 isolates of clinical and environmental origin, corresponding to seven different species of the series Versicolores. Spore suspensions and ethyl acetate extracts prepared from fungal isolates were subjected to oxidative potential measurement using the dithiothreitol (DTT) test and cell survival measurement. The DTT tests showed that all species of the series Versicolores had an oxidative potential, either by their spores (especially for Aspergillus jensenii) or by the extracts (especially from Aspergillus amoenus). Measurements of cell survival of A549 and HaCaT cell lines showed that only the spore suspension containing 10(5) spores/mL of Aspergillus jensenii caused a significant decrease in survival after 72 h of exposure. The same tests performed with mixtures of 10(5) spores/mL showed a potentiation of the cytotoxic effect, with a significant decrease in cell survival for mixtures containing spores of two species (on A549 cells, p = 0.05 and HaCaT cells, p = 0.001) or three different species (on HaCaT cells, p = 0.05). Cell survival assays after 72 h of exposure to the fungal extracts showed that Aspergillus puulaauensis extract was the most cytotoxic (IC50 < 25 µg/mL), while Aspergillus fructus caused no significant decrease in cell survival. MDPI 2022-01-20 /pmc/articles/PMC8875557/ /pubmed/35208683 http://dx.doi.org/10.3390/microorganisms10020228 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Géry, Antoine Lepetit, Charlie Heutte, Natacha Séguin, Virginie Bonhomme, Julie Garon, David Cellular Cytotoxicity and Oxidative Potential of Recurrent Molds of the Genus Aspergillus Series Versicolores |
title | Cellular Cytotoxicity and Oxidative Potential of Recurrent Molds of the Genus Aspergillus Series Versicolores |
title_full | Cellular Cytotoxicity and Oxidative Potential of Recurrent Molds of the Genus Aspergillus Series Versicolores |
title_fullStr | Cellular Cytotoxicity and Oxidative Potential of Recurrent Molds of the Genus Aspergillus Series Versicolores |
title_full_unstemmed | Cellular Cytotoxicity and Oxidative Potential of Recurrent Molds of the Genus Aspergillus Series Versicolores |
title_short | Cellular Cytotoxicity and Oxidative Potential of Recurrent Molds of the Genus Aspergillus Series Versicolores |
title_sort | cellular cytotoxicity and oxidative potential of recurrent molds of the genus aspergillus series versicolores |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8875557/ https://www.ncbi.nlm.nih.gov/pubmed/35208683 http://dx.doi.org/10.3390/microorganisms10020228 |
work_keys_str_mv | AT geryantoine cellularcytotoxicityandoxidativepotentialofrecurrentmoldsofthegenusaspergillusseriesversicolores AT lepetitcharlie cellularcytotoxicityandoxidativepotentialofrecurrentmoldsofthegenusaspergillusseriesversicolores AT heuttenatacha cellularcytotoxicityandoxidativepotentialofrecurrentmoldsofthegenusaspergillusseriesversicolores AT seguinvirginie cellularcytotoxicityandoxidativepotentialofrecurrentmoldsofthegenusaspergillusseriesversicolores AT bonhommejulie cellularcytotoxicityandoxidativepotentialofrecurrentmoldsofthegenusaspergillusseriesversicolores AT garondavid cellularcytotoxicityandoxidativepotentialofrecurrentmoldsofthegenusaspergillusseriesversicolores |