Response of Bovine Cumulus–Oocytes Complexes to Energy Pathway Inhibition during In Vitro Maturation
Glucose or fatty acids (FAs) metabolisms may alter the ovarian follicle environment and thus determine oocyte and the nascent embryo quality. The aim of the experiment was to investigate the effect of selective inhibition of glucose (iodoacetate + DHEA) or FA (etomoxir) metabolism on in vitro matura...
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doaj-c98ee506bb0145f8be004de29c0d0fc22021-06-01T01:35:35ZengMDPI AGGenes2073-44252021-05-011283883810.3390/genes12060838Response of Bovine Cumulus–Oocytes Complexes to Energy Pathway Inhibition during In Vitro MaturationPaulina Lipinska0Ewa Sell-Kubiak1Piotr Pawlak2Zofia Eliza Madeja3Ewelina Warzych4Department of Genetics and Animal Breeding, Poznan University of Life Sciences, 60-624 Poznan, PolandDepartment of Genetics and Animal Breeding, Poznan University of Life Sciences, 60-624 Poznan, PolandDepartment of Genetics and Animal Breeding, Poznan University of Life Sciences, 60-624 Poznan, PolandDepartment of Genetics and Animal Breeding, Poznan University of Life Sciences, 60-624 Poznan, PolandDepartment of Genetics and Animal Breeding, Poznan University of Life Sciences, 60-624 Poznan, PolandGlucose or fatty acids (FAs) metabolisms may alter the ovarian follicle environment and thus determine oocyte and the nascent embryo quality. The aim of the experiment was to investigate the effect of selective inhibition of glucose (iodoacetate + DHEA) or FA (etomoxir) metabolism on in vitro maturation (IVM) of bovine COCs (cumulus–oocyte complexes) to investigate oocyte’s development, quality, and energy metabolism. After in vitro fertilization, embryos were cultured to the blastocyst stage. Lipid droplets, metabolome, and lipidome were analyzed in oocytes and cumulus cells. mRNA expression of the selected genes was measured in the cumulus cells. ATP and glutathione relative levels were measured in oocytes. Changes in FA content in the maturation medium were evaluated by mass spectrometry. Our results indicate that only glucose metabolism is substantial to the oocyte during IVM since only glucose inhibition decreased embryo culture efficiency. The most noteworthy differences in the reaction to the applied inhibition systems were observed in cumulus cells. The upregulation of ketone body metabolism in the cumulus cells of the glucose inhibition group suggest possibly failed attempts of cells to switch into lipid consumption. On the contrary, etomoxir treatment of the oocytes did not affect embryo development, probably due to undisturbed metabolism in cumulus cells. Therefore, we suggest that the energy pathways analyzed in this experiment are not interchangeable alternatives in bovine COCs.https://www.mdpi.com/2073-4425/12/6/838oocytecumulus cellsenergy metabolismglucosefatty acids |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Paulina Lipinska Ewa Sell-Kubiak Piotr Pawlak Zofia Eliza Madeja Ewelina Warzych |
spellingShingle |
Paulina Lipinska Ewa Sell-Kubiak Piotr Pawlak Zofia Eliza Madeja Ewelina Warzych Response of Bovine Cumulus–Oocytes Complexes to Energy Pathway Inhibition during In Vitro Maturation Genes oocyte cumulus cells energy metabolism glucose fatty acids |
author_facet |
Paulina Lipinska Ewa Sell-Kubiak Piotr Pawlak Zofia Eliza Madeja Ewelina Warzych |
author_sort |
Paulina Lipinska |
title |
Response of Bovine Cumulus–Oocytes Complexes to Energy Pathway Inhibition during In Vitro Maturation |
title_short |
Response of Bovine Cumulus–Oocytes Complexes to Energy Pathway Inhibition during In Vitro Maturation |
title_full |
Response of Bovine Cumulus–Oocytes Complexes to Energy Pathway Inhibition during In Vitro Maturation |
title_fullStr |
Response of Bovine Cumulus–Oocytes Complexes to Energy Pathway Inhibition during In Vitro Maturation |
title_full_unstemmed |
Response of Bovine Cumulus–Oocytes Complexes to Energy Pathway Inhibition during In Vitro Maturation |
title_sort |
response of bovine cumulus–oocytes complexes to energy pathway inhibition during in vitro maturation |
publisher |
MDPI AG |
series |
Genes |
issn |
2073-4425 |
publishDate |
2021-05-01 |
description |
Glucose or fatty acids (FAs) metabolisms may alter the ovarian follicle environment and thus determine oocyte and the nascent embryo quality. The aim of the experiment was to investigate the effect of selective inhibition of glucose (iodoacetate + DHEA) or FA (etomoxir) metabolism on in vitro maturation (IVM) of bovine COCs (cumulus–oocyte complexes) to investigate oocyte’s development, quality, and energy metabolism. After in vitro fertilization, embryos were cultured to the blastocyst stage. Lipid droplets, metabolome, and lipidome were analyzed in oocytes and cumulus cells. mRNA expression of the selected genes was measured in the cumulus cells. ATP and glutathione relative levels were measured in oocytes. Changes in FA content in the maturation medium were evaluated by mass spectrometry. Our results indicate that only glucose metabolism is substantial to the oocyte during IVM since only glucose inhibition decreased embryo culture efficiency. The most noteworthy differences in the reaction to the applied inhibition systems were observed in cumulus cells. The upregulation of ketone body metabolism in the cumulus cells of the glucose inhibition group suggest possibly failed attempts of cells to switch into lipid consumption. On the contrary, etomoxir treatment of the oocytes did not affect embryo development, probably due to undisturbed metabolism in cumulus cells. Therefore, we suggest that the energy pathways analyzed in this experiment are not interchangeable alternatives in bovine COCs. |
topic |
oocyte cumulus cells energy metabolism glucose fatty acids |
url |
https://www.mdpi.com/2073-4425/12/6/838 |
work_keys_str_mv |
AT paulinalipinska responseofbovinecumulusoocytescomplexestoenergypathwayinhibitionduringinvitromaturation AT ewasellkubiak responseofbovinecumulusoocytescomplexestoenergypathwayinhibitionduringinvitromaturation AT piotrpawlak responseofbovinecumulusoocytescomplexestoenergypathwayinhibitionduringinvitromaturation AT zofiaelizamadeja responseofbovinecumulusoocytescomplexestoenergypathwayinhibitionduringinvitromaturation AT ewelinawarzych responseofbovinecumulusoocytescomplexestoenergypathwayinhibitionduringinvitromaturation |
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1721412049608638464 |