Seasonal Change in Adiponectin Associated with Ovarian Morphology and Function in Wild Ground Squirrels (<i>Citellus dauricus</i> Brandt)

The goal of this study is to explore the relationship between altered circulating adiponectin concentration, ovarian tissue morphology, ovarian steroidogenesis, and sex hormone production in ovaries of wild ground squirrels. The ovarian mass differed significantly during the breeding and non-breedin...

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Main Authors: Sijie Fan, Wenjing Lu, Haolin Zhang, Zhengrong Yuan, Yingying Han, Qiang Weng
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/23/23/14698
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author Sijie Fan
Wenjing Lu
Haolin Zhang
Zhengrong Yuan
Yingying Han
Qiang Weng
author_facet Sijie Fan
Wenjing Lu
Haolin Zhang
Zhengrong Yuan
Yingying Han
Qiang Weng
author_sort Sijie Fan
collection DOAJ
description The goal of this study is to explore the relationship between altered circulating adiponectin concentration, ovarian tissue morphology, ovarian steroidogenesis, and sex hormone production in ovaries of wild ground squirrels. The ovarian mass differed significantly during the breeding and non-breeding seasons, and the circulating estradiol and progesterone concentrations were significantly higher in the breeding season, while the circulating adiponectin level was significantly lower. The expression levels of gonadotropin receptors (FSHR and LHR) and steroidogenic enzymes (StAR, P450scc, P450arom, and 3β-HSD) were significantly higher during the breeding season. Comparing the ovarian transcriptome data of wild ground squirrels between the two periods, we found that some differentially expressed genes were enriched for ovarian steroidogenesis and the adipocytokine signaling pathway, which correlated with our present results. Notably, the MAPK signaling pathway was also enriched and its related genes (<i>Erk1</i>, <i>p38 Mapk</i>, <i>Jnk</i>) were up-regulated by qPCR during the non-breeding season. These findings suggested that adiponectin may be involved in the regulation of seasonal changes in the ovarian function of wild ground squirrels, possibly by acting on the MAPK signaling pathway to regulate sex steroidogenesis in the ovaries.
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spelling doaj.art-6c9bdf0c31124be8a09bb10acc9e5b2f2023-11-24T11:06:22ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-11-0123231469810.3390/ijms232314698Seasonal Change in Adiponectin Associated with Ovarian Morphology and Function in Wild Ground Squirrels (<i>Citellus dauricus</i> Brandt)Sijie Fan0Wenjing Lu1Haolin Zhang2Zhengrong Yuan3Yingying Han4Qiang Weng5College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, ChinaCollege of Biological Science and Technology, Beijing Forestry University, Beijing 100083, ChinaCollege of Biological Science and Technology, Beijing Forestry University, Beijing 100083, ChinaCollege of Biological Science and Technology, Beijing Forestry University, Beijing 100083, ChinaCollege of Biological Science and Technology, Beijing Forestry University, Beijing 100083, ChinaCollege of Biological Science and Technology, Beijing Forestry University, Beijing 100083, ChinaThe goal of this study is to explore the relationship between altered circulating adiponectin concentration, ovarian tissue morphology, ovarian steroidogenesis, and sex hormone production in ovaries of wild ground squirrels. The ovarian mass differed significantly during the breeding and non-breeding seasons, and the circulating estradiol and progesterone concentrations were significantly higher in the breeding season, while the circulating adiponectin level was significantly lower. The expression levels of gonadotropin receptors (FSHR and LHR) and steroidogenic enzymes (StAR, P450scc, P450arom, and 3β-HSD) were significantly higher during the breeding season. Comparing the ovarian transcriptome data of wild ground squirrels between the two periods, we found that some differentially expressed genes were enriched for ovarian steroidogenesis and the adipocytokine signaling pathway, which correlated with our present results. Notably, the MAPK signaling pathway was also enriched and its related genes (<i>Erk1</i>, <i>p38 Mapk</i>, <i>Jnk</i>) were up-regulated by qPCR during the non-breeding season. These findings suggested that adiponectin may be involved in the regulation of seasonal changes in the ovarian function of wild ground squirrels, possibly by acting on the MAPK signaling pathway to regulate sex steroidogenesis in the ovaries.https://www.mdpi.com/1422-0067/23/23/14698adiponectinadiponectin receptorMAPK signaling pathwayovarysteroidogenesiswild ground squirrels
spellingShingle Sijie Fan
Wenjing Lu
Haolin Zhang
Zhengrong Yuan
Yingying Han
Qiang Weng
Seasonal Change in Adiponectin Associated with Ovarian Morphology and Function in Wild Ground Squirrels (<i>Citellus dauricus</i> Brandt)
International Journal of Molecular Sciences
adiponectin
adiponectin receptor
MAPK signaling pathway
ovary
steroidogenesis
wild ground squirrels
title Seasonal Change in Adiponectin Associated with Ovarian Morphology and Function in Wild Ground Squirrels (<i>Citellus dauricus</i> Brandt)
title_full Seasonal Change in Adiponectin Associated with Ovarian Morphology and Function in Wild Ground Squirrels (<i>Citellus dauricus</i> Brandt)
title_fullStr Seasonal Change in Adiponectin Associated with Ovarian Morphology and Function in Wild Ground Squirrels (<i>Citellus dauricus</i> Brandt)
title_full_unstemmed Seasonal Change in Adiponectin Associated with Ovarian Morphology and Function in Wild Ground Squirrels (<i>Citellus dauricus</i> Brandt)
title_short Seasonal Change in Adiponectin Associated with Ovarian Morphology and Function in Wild Ground Squirrels (<i>Citellus dauricus</i> Brandt)
title_sort seasonal change in adiponectin associated with ovarian morphology and function in wild ground squirrels i citellus dauricus i brandt
topic adiponectin
adiponectin receptor
MAPK signaling pathway
ovary
steroidogenesis
wild ground squirrels
url https://www.mdpi.com/1422-0067/23/23/14698
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