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Xie Y, Xiao K, Cai T, Shi X, Zhou L, Du H, Yang J, Hu G. Neuropeptides and hormones in hypothalamus-pituitary axis of Chinese sturgeon (Acipenser sinensis). Gen Comp Endocrinol 2023; 330:114135. [PMID: 36181879 DOI: 10.1016/j.ygcen.2022.114135] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/25/2022] [Accepted: 09/25/2022] [Indexed: 12/14/2022]
Abstract
The hypothalamus and pituitary serve as important neuroendocrine center, which is able to secrete a variety of neuropeptides and hormones to participate in the regulation of reproduction, growth, stress and feeding in fish. Chinese sturgeon is a basal vertebrate lineage fish with a special evolutionary status, but the information on its neuroendocrine system is relatively scarce. Using the transcriptome data on the hypothalamus-pituitary axis of Chinese sturgeon as reference, we found out 46 hypothalamus neuropeptide genes, which were involved in regulation of reproduction, growth, stress and feeding. The results of sequence alignment showed that the neuroendocrine system of Chinese sturgeon evolves slowly, which confirms that Chinese sturgeon is a species with a slow phenotypic evolution rate. In addition, we also isolated six pituitary hormones genes from Chinese sturgeon, including reproductive hormones: follicle-stimulating homone (FSH) and luteinizing hormone (LH), growth-related hormones: growth hormone (GH)/prolactin (PRL)/somatolactin (SL), and stress-related hormone gene: proopiomelanocortin (POMC). Similar to teleost, immunostaining localization analysis in Chinese sturgeon pituitary showed that LH and FSH were located in the pituitary proximal pars distalis, SL was located in the pituitary rostral pars distalis, and POMC was located in the pituitary pars intermedia and pituitary rostral pars distalis. This study will give a contribution to enrich our information on the neuroendocrine system in Chinese sturgeon.
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Affiliation(s)
- Yunyi Xie
- College of Fisheries, Huazhong Agriculture University, Wuhan, Hubei, 430070, China
| | - Kan Xiao
- Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang, Hubei 443100, China; Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang, Hubei 443100, China
| | - Tianyi Cai
- College of Fisheries, Huazhong Agriculture University, Wuhan, Hubei, 430070, China
| | - Xuetao Shi
- College of Fisheries, Huazhong Agriculture University, Wuhan, Hubei, 430070, China
| | - Lingling Zhou
- College of Fisheries, Huazhong Agriculture University, Wuhan, Hubei, 430070, China
| | - Hejun Du
- Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang, Hubei 443100, China; Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang, Hubei 443100, China
| | - Jing Yang
- Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang, Hubei 443100, China; Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang, Hubei 443100, China
| | - Guangfu Hu
- College of Fisheries, Huazhong Agriculture University, Wuhan, Hubei, 430070, China.
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Castellano M, Silva-Álvarez V, Fernández-López E, Mauris V, Conijeski D, Villarino A, Ferreira AM. Russian sturgeon cultured in a subtropical climate shows weaken innate defences and a chronic stress response. FISH & SHELLFISH IMMUNOLOGY 2017; 68:443-451. [PMID: 28743624 DOI: 10.1016/j.fsi.2017.07.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 07/17/2017] [Accepted: 07/21/2017] [Indexed: 06/07/2023]
Abstract
Russian sturgeon (Acipenser gueldenstaedtii) has been successfully farmed in Uruguay for the past ten years. However, during the Uruguayan summer fish endure high water temperatures and increased bacterial infections that threaten aquaculture. Our understanding of sturgeon's immune system and its interplay with environmental factors like temperature is almost unknown. This study analysed the way in which seasonal variations affect enzymatic blood components of Russian sturgeon's innate defences, including the serum alternative complement pathway (ACP), ceruloplasmin (Cp) and lysozyme activities. Results showed that summertime conditions in the farm altered these defences in different ways, inducing a significant decrease in ACP and Cp, and an increase in lysozyme. In addition, serum levels of total protein and cortisol decreased in summer, suggesting a chronic stress response was induced in parallel. Subsequently, we analysed whether the increase in water river temperature during summer could account for the observed results. To that end, we acclimated juvenile sturgeons to mild (18 °C) or warm (24 °C) temperatures for 37 days. Like in summer, sturgeons exposed to 24 °C showed lower levels of serum ACP, Cp and total proteins, together with a progressive decrease in body weight and increased fish mortality. Administration of an immunostimulant containing Se and Zn slightly reverted the temperature-induced effects on sturgeon's defences. Altogether, our study provides novel data on various physiological parameters of the Russian sturgeon and highlights the impact warm temperature has on stress and innate immunity in this chondrostean fish.
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Affiliation(s)
- Mauricio Castellano
- Unidad de Inmunología, Facultad de Ciencias/Facultad de Química, Universidad de la República (UdelaR), Avda. A. Navarro 3051, p2, CP 11600, Montevideo, Uruguay; Sección de Bioquímica y Biología Molecular, Facultad de Ciencias, Universidad de la República (UdelaR), Iguá 4225 Esq. Mataojo, CP 11400, Montevideo, Uruguay
| | - Valeria Silva-Álvarez
- Unidad de Inmunología, Facultad de Ciencias/Facultad de Química, Universidad de la República (UdelaR), Avda. A. Navarro 3051, p2, CP 11600, Montevideo, Uruguay
| | | | - Verónica Mauris
- Biotech Uruguay, Dr. Alfredo García Morales 1155, Montevideo, Uruguay
| | | | - Andrea Villarino
- Sección de Bioquímica y Biología Molecular, Facultad de Ciencias, Universidad de la República (UdelaR), Iguá 4225 Esq. Mataojo, CP 11400, Montevideo, Uruguay
| | - Ana M Ferreira
- Unidad de Inmunología, Facultad de Ciencias/Facultad de Química, Universidad de la República (UdelaR), Avda. A. Navarro 3051, p2, CP 11600, Montevideo, Uruguay.
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Poursaeid S, Falahatkar B, Mojazi Amiri B, Van Der Kraak G. Effects of long-term cortisol treatments on gonadal development, sex steroids levels and ovarian cortisol content in cultured great sturgeon Huso huso. Comp Biochem Physiol A Mol Integr Physiol 2012; 163:111-9. [DOI: 10.1016/j.cbpa.2012.05.202] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2012] [Revised: 05/14/2012] [Accepted: 05/16/2012] [Indexed: 11/29/2022]
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Krayushkina LS, Kassner J, Semenova OG, Ogozhalek A. Changes of secretory activity of proadenohypophysis ACTH-immunopositive cells in starred sturgeon Acipenser stellatus Pallas during adaptation to sea water. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2009; 424:7-9. [PMID: 19341072 DOI: 10.1134/s0012496609010037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Peripheral Endocrine Glands. II. The Adrenal Glands and the Corpuscles of Stannius. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/s1546-5098(07)26009-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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