Molecular cloning and expression dynamics of Atrogin-1 in muscle tissue of Russian sturgeon (Acipenser gueldenstaedtii) under high salt stress

Atrogin-1, a muscle-specific ubiquitin ligase, is integral to the regulation of protein degradation and plays a pivotal role in the targeted degradation of critical muscle signaling proteins, which can lead to skeletal muscle dysfunction. High salt stress is known to induce muscle atrophy and alter...

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Main Authors: Yong-Juan Mo, Yi-Li Gao, Shi-Jjian Xu, Bin Wang, Jingping Wu, Peng Yu, Ming Li, Xiangtao Kang, Zhi-Qiang Han
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Aquaculture Reports
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Online Access:http://www.sciencedirect.com/science/article/pii/S2352513424006306
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author Yong-Juan Mo
Yi-Li Gao
Shi-Jjian Xu
Bin Wang
Jingping Wu
Peng Yu
Ming Li
Xiangtao Kang
Zhi-Qiang Han
author_facet Yong-Juan Mo
Yi-Li Gao
Shi-Jjian Xu
Bin Wang
Jingping Wu
Peng Yu
Ming Li
Xiangtao Kang
Zhi-Qiang Han
author_sort Yong-Juan Mo
collection DOAJ
description Atrogin-1, a muscle-specific ubiquitin ligase, is integral to the regulation of protein degradation and plays a pivotal role in the targeted degradation of critical muscle signaling proteins, which can lead to skeletal muscle dysfunction. High salt stress is known to induce muscle atrophy and alter the physical and chemical properties of muscle in cultured fish. Conversely, an optimal salinity level can enhance muscle quality. The Russian sturgeon (Acipenser gueldenstaedtii), an anadromous species of significant economic value, is potentially adaptable to brackish water environments, yet the underlying regulatory mechanisms remain elusive. To elucidate the regulatory mechanism of Atrogin-1 in response to high salt stress in Russian sturgeon, we conducted cDNA cloning and expression analysis. The cDNA encoding the Russian sturgeon protein Atrogin-1 was successfully cloned, comprising 1472 bp and encoding 353 amino acid residues (with an open reading frame of 1062 bp). Utilizing the sequence of Russian sturgeon atrogin-1, we designed novel primers and a specific anti-peptide antibody for our study, confirming that atrogin-1 is selectively expressed in skeletal muscle and heart tissues. The sturgeons were then allocated into four experimental groups for salt stress exposure; one control group was maintained in freshwater, while the others were subjected to salinities of 8 ‰, 16 ‰, and 24 ‰, respectively. Quantitative PCR (qPCR) and western blot analysis were employed to assess Atrogin-1 expression levels under high salt stress. A significant upregulation of atrogin-1 mRNA was observed at salinities of 16 ‰ and 24 ‰ compared to the control group. Similarly, protein expression levels of Atrogin-1 were markedly elevated under the same salinity conditions. Our findings indicate that the modulation of Atrogin-1 expression is a sensitive indicator of the response to high salt stress. This research is anticipated to inform aquaculture practices and shed light on the selection of germplasm resources for the development of salt-tolerant Russian sturgeon strains.
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spelling doaj-art-e9fb256a907b400da432f96d245545892025-02-06T05:12:04ZengElsevierAquaculture Reports2352-51342025-03-0140102542Molecular cloning and expression dynamics of Atrogin-1 in muscle tissue of Russian sturgeon (Acipenser gueldenstaedtii) under high salt stressYong-Juan Mo0Yi-Li Gao1Shi-Jjian Xu2Bin Wang3Jingping Wu4Peng Yu5Ming Li6Xiangtao Kang7Zhi-Qiang Han8Fishery College, Zhejiang Ocean University, Zhoushan 316022, ChinaNingbo Key Laboratory of Agricultural Germplasm Resources Mining and Environmental Regulation, College of Science and Technology, Ningbo University, Cixi 315300, China; Quzhou Sturgeon Aquatic Food Science and Technology Development Co., Ltd., Quzhou 324002, China; Corresponding author at: College of Science and Technology, Ningbo University, No. 521, Wenwei Road, Cixi 315300, China.Quzhou Sturgeon Aquatic Food Science and Technology Development Co., Ltd., Quzhou 324002, China; Key Laboratory of Sturgeon Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Hangzhou 311799, China; Corresponding author at: Quzhou Sturgeon Aquatic Food Science and Technology Development Co., Ltd., No. 1, Xunlong Road, Quzhou 324002, China.Quzhou Sturgeon Aquatic Food Science and Technology Development Co., Ltd., Quzhou 324002, China; Key Laboratory of Sturgeon Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Hangzhou 311799, ChinaQuzhou Sturgeon Aquatic Food Science and Technology Development Co., Ltd., Quzhou 324002, China; Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, ChinaInstitute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, ChinaCollege of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, ChinaFishery College, Zhejiang Ocean University, Zhoushan 316022, ChinaAtrogin-1, a muscle-specific ubiquitin ligase, is integral to the regulation of protein degradation and plays a pivotal role in the targeted degradation of critical muscle signaling proteins, which can lead to skeletal muscle dysfunction. High salt stress is known to induce muscle atrophy and alter the physical and chemical properties of muscle in cultured fish. Conversely, an optimal salinity level can enhance muscle quality. The Russian sturgeon (Acipenser gueldenstaedtii), an anadromous species of significant economic value, is potentially adaptable to brackish water environments, yet the underlying regulatory mechanisms remain elusive. To elucidate the regulatory mechanism of Atrogin-1 in response to high salt stress in Russian sturgeon, we conducted cDNA cloning and expression analysis. The cDNA encoding the Russian sturgeon protein Atrogin-1 was successfully cloned, comprising 1472 bp and encoding 353 amino acid residues (with an open reading frame of 1062 bp). Utilizing the sequence of Russian sturgeon atrogin-1, we designed novel primers and a specific anti-peptide antibody for our study, confirming that atrogin-1 is selectively expressed in skeletal muscle and heart tissues. The sturgeons were then allocated into four experimental groups for salt stress exposure; one control group was maintained in freshwater, while the others were subjected to salinities of 8 ‰, 16 ‰, and 24 ‰, respectively. Quantitative PCR (qPCR) and western blot analysis were employed to assess Atrogin-1 expression levels under high salt stress. A significant upregulation of atrogin-1 mRNA was observed at salinities of 16 ‰ and 24 ‰ compared to the control group. Similarly, protein expression levels of Atrogin-1 were markedly elevated under the same salinity conditions. Our findings indicate that the modulation of Atrogin-1 expression is a sensitive indicator of the response to high salt stress. This research is anticipated to inform aquaculture practices and shed light on the selection of germplasm resources for the development of salt-tolerant Russian sturgeon strains.http://www.sciencedirect.com/science/article/pii/S2352513424006306Atrogin-1High salt stressAcipenser gueldenstaedtiiSelective breeding
spellingShingle Yong-Juan Mo
Yi-Li Gao
Shi-Jjian Xu
Bin Wang
Jingping Wu
Peng Yu
Ming Li
Xiangtao Kang
Zhi-Qiang Han
Molecular cloning and expression dynamics of Atrogin-1 in muscle tissue of Russian sturgeon (Acipenser gueldenstaedtii) under high salt stress
Aquaculture Reports
Atrogin-1
High salt stress
Acipenser gueldenstaedtii
Selective breeding
title Molecular cloning and expression dynamics of Atrogin-1 in muscle tissue of Russian sturgeon (Acipenser gueldenstaedtii) under high salt stress
title_full Molecular cloning and expression dynamics of Atrogin-1 in muscle tissue of Russian sturgeon (Acipenser gueldenstaedtii) under high salt stress
title_fullStr Molecular cloning and expression dynamics of Atrogin-1 in muscle tissue of Russian sturgeon (Acipenser gueldenstaedtii) under high salt stress
title_full_unstemmed Molecular cloning and expression dynamics of Atrogin-1 in muscle tissue of Russian sturgeon (Acipenser gueldenstaedtii) under high salt stress
title_short Molecular cloning and expression dynamics of Atrogin-1 in muscle tissue of Russian sturgeon (Acipenser gueldenstaedtii) under high salt stress
title_sort molecular cloning and expression dynamics of atrogin 1 in muscle tissue of russian sturgeon acipenser gueldenstaedtii under high salt stress
topic Atrogin-1
High salt stress
Acipenser gueldenstaedtii
Selective breeding
url http://www.sciencedirect.com/science/article/pii/S2352513424006306
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