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Rotenone causes mitochondrial dysfunction and prevents maturation in porcine oocytes
Rotenone is a commonly used insecticidal chemical in agriculture and it is an inhibitor of mitochondrial complex Ⅰ. Previous studies have found that rotenone induces the production of reactive oxygen species (ROS) by inhibiting electron transport in the mitochondria of somatic and germ cells. Howeve...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9704683/ https://www.ncbi.nlm.nih.gov/pubmed/36441709 http://dx.doi.org/10.1371/journal.pone.0277477 |
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author | Heo, Geun Sun, Ming-Hong Jiang, Wen-Jie Li, Xiao-Han Lee, Song-Hee Guo, Jing Zhou, Dongjie Cui, Xiang-Shun |
author_facet | Heo, Geun Sun, Ming-Hong Jiang, Wen-Jie Li, Xiao-Han Lee, Song-Hee Guo, Jing Zhou, Dongjie Cui, Xiang-Shun |
author_sort | Heo, Geun |
collection | PubMed |
description | Rotenone is a commonly used insecticidal chemical in agriculture and it is an inhibitor of mitochondrial complex Ⅰ. Previous studies have found that rotenone induces the production of reactive oxygen species (ROS) by inhibiting electron transport in the mitochondria of somatic and germ cells. However, there is little precise information on the effects of rotenone exposure in porcine oocytes during in vitro maturation, and the mechanisms underlying these effects have not been determined. The Cumulus-oocyte complexes were supplemented with different concentrations of rotenone to elucidate the effects of rotenone exposure on the meiotic maturation of porcine oocytes during in vitro maturation for about 48 hours. First, we found that the maturation rate and expansion of cumulus cells were significantly reduced in the 3 and 5 μM rotenone-treated groups. Subsequently, the concentration of rotenone was determined to be 3 μM. Also, immunofluorescence, western blotting, and image quantification analyses were performed to test the rotenone exposure on the meiotic maturation, total and mitochondrial ROS, mitochondrial function and biogenesis, mitophagy and apoptosis in porcine oocytes. Further experiments showed that rotenone treatment induced mitochondrial dysfunction and failure of mitochondrial biogenesis by repressing the level of SIRT1 during in vitro maturation of porcine oocytes. In addition, rotenone treatment reduced the ratio of active mitochondria to total mitochondria, increased ROS production, and decreased ATP production. The levels of LC3 and active-caspase 3 were significantly increased by rotenone treatment, indicating that mitochondrial dysfunction induced by rotenone increased mitophagy but eventually led to apoptosis. Collectively, these results suggest that rotenone interferes with porcine oocyte maturation by inhibiting mitochondrial function. |
format | Online Article Text |
id | pubmed-9704683 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-97046832022-11-29 Rotenone causes mitochondrial dysfunction and prevents maturation in porcine oocytes Heo, Geun Sun, Ming-Hong Jiang, Wen-Jie Li, Xiao-Han Lee, Song-Hee Guo, Jing Zhou, Dongjie Cui, Xiang-Shun PLoS One Research Article Rotenone is a commonly used insecticidal chemical in agriculture and it is an inhibitor of mitochondrial complex Ⅰ. Previous studies have found that rotenone induces the production of reactive oxygen species (ROS) by inhibiting electron transport in the mitochondria of somatic and germ cells. However, there is little precise information on the effects of rotenone exposure in porcine oocytes during in vitro maturation, and the mechanisms underlying these effects have not been determined. The Cumulus-oocyte complexes were supplemented with different concentrations of rotenone to elucidate the effects of rotenone exposure on the meiotic maturation of porcine oocytes during in vitro maturation for about 48 hours. First, we found that the maturation rate and expansion of cumulus cells were significantly reduced in the 3 and 5 μM rotenone-treated groups. Subsequently, the concentration of rotenone was determined to be 3 μM. Also, immunofluorescence, western blotting, and image quantification analyses were performed to test the rotenone exposure on the meiotic maturation, total and mitochondrial ROS, mitochondrial function and biogenesis, mitophagy and apoptosis in porcine oocytes. Further experiments showed that rotenone treatment induced mitochondrial dysfunction and failure of mitochondrial biogenesis by repressing the level of SIRT1 during in vitro maturation of porcine oocytes. In addition, rotenone treatment reduced the ratio of active mitochondria to total mitochondria, increased ROS production, and decreased ATP production. The levels of LC3 and active-caspase 3 were significantly increased by rotenone treatment, indicating that mitochondrial dysfunction induced by rotenone increased mitophagy but eventually led to apoptosis. Collectively, these results suggest that rotenone interferes with porcine oocyte maturation by inhibiting mitochondrial function. Public Library of Science 2022-11-28 /pmc/articles/PMC9704683/ /pubmed/36441709 http://dx.doi.org/10.1371/journal.pone.0277477 Text en © 2022 Heo et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Heo, Geun Sun, Ming-Hong Jiang, Wen-Jie Li, Xiao-Han Lee, Song-Hee Guo, Jing Zhou, Dongjie Cui, Xiang-Shun Rotenone causes mitochondrial dysfunction and prevents maturation in porcine oocytes |
title | Rotenone causes mitochondrial dysfunction and prevents maturation in porcine oocytes |
title_full | Rotenone causes mitochondrial dysfunction and prevents maturation in porcine oocytes |
title_fullStr | Rotenone causes mitochondrial dysfunction and prevents maturation in porcine oocytes |
title_full_unstemmed | Rotenone causes mitochondrial dysfunction and prevents maturation in porcine oocytes |
title_short | Rotenone causes mitochondrial dysfunction and prevents maturation in porcine oocytes |
title_sort | rotenone causes mitochondrial dysfunction and prevents maturation in porcine oocytes |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9704683/ https://www.ncbi.nlm.nih.gov/pubmed/36441709 http://dx.doi.org/10.1371/journal.pone.0277477 |
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