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Tu Z, Tang L, Abo-Raya MH, Sun M, Shen H, Wang Y. Cloning and characterization of heat shock transcription factor 1 and its functional role for Hsp70 production in the sea slug Onchidium reevesii. Gene 2024; 893:147945. [PMID: 38381511 DOI: 10.1016/j.gene.2023.147945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/19/2023] [Accepted: 10/27/2023] [Indexed: 02/22/2024]
Abstract
To investigate the regulatory role of heat shock transcription factor 1 of sea slug Onchidium reevesii (OrHSF1) on Hsp70 expression in the sea slug under stress , the OrHSF1 gene was cloned and bioinformatics analysis was performed, then the gene and protein expressions by RNA interference (RNAi) mediated knockdown of OrHSF1 expression were measured to clarify the regulatory relationship between OrHSF1 and Hsp70 under low-frequency noise (LFN) stress. Our study was the first to clone a 1572 bp sequence of the OrHSF1 gene, with the sequence coding for amino acids (CDS) being 729 bp, encoding 243 amino acids. O. reevesii shared a close evolutionary relationship with mollusks such as the Aplysia californica. OrHSF1 gene is widely expressed in different tissues of sea slugs, with the highest expression in the intestine and the lowest in the reproductive glands. Furthermore, we used RNA interference (RNAi) as a tool to silence the OrHSF1 gene in the central nervous system (CNS) and the results indicated that gene silencing was occurring systematically in the CNS and the suppression of OrHSF1 expression by RNAi-mediated gene silencing altered the expression of Hsp70; besides, the expression trends of OrHSF1 gene and Hsp70 were consistent in the 3 and 5-day RNAi experiment. Moreover, in sea slugs injected with siHSF1 and exposed to LFN, the mRNA expression and protein expression of Hsp70 in the CNS were significantly decreased compared to the low-frequency noise group (P < 0.05). This study demonstrated that OrHSF1 regulates Hsp70 expression in marine mollusks under low-frequency noise, and HSF1-Hsp70 axis plays a key role in stress response.
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Affiliation(s)
- Zhihan Tu
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Liusiqiao Tang
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Mohamed H Abo-Raya
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China; Department of Aquaculture, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Mengying Sun
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Heding Shen
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
| | - Youji Wang
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
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Lin F, Yuan Y, Ye X, Lv J, Liu X, Guo H, Wen X. Characterization and role of connective tissue growth factor gene in collagen synthesis in swim bladder of chu's croaker (Nibea coibor). Int J Biol Macromol 2023; 227:1336-1345. [PMID: 36473534 DOI: 10.1016/j.ijbiomac.2022.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 12/11/2022]
Abstract
Connective tissue growth factor (Ctgf) is a matricellular protein with diverse biological function. It is regarded as a central regulator of tissue fibrosis and collagen synthesis in mammals. However, its roles in fish remain elusive. Here, a ctgf gene was cloned (NcCtgf), characterized and functionally studied in the chu's croaker (Nibea coibor). NcCtgf encoded a protein containing 346 amino acids, 38 conserved cysteine residues, 4 functional domains and a signal peptide. NcCtgf shared highest identity (99.4 %) to the Larimichthys crocea Ctgf protein. Phylogenetic tree revealed that NcCtgf clustered with the teleost Ctgfa and Ctgf of higher vertebrates, instead of teleost Ctgfb. NcCtgf was expressed with higher level in gonad, spleen, gill and swimming bladder than other tissues, and was up-regulated in swim bladder synchronously with collagen I genes by hydroxyproline and TGF-β1 treatment. NcCtgf knockdown/overexpression inhibited/promoted collagen synthesis in swim bladder cell, respectively. Notably, NcCtgf protein could be secreted to cell culture medium and up-regulated collagen I expression in swim bladder cell. These findings indicate NcCtgf plays vital roles in collagen synthesis in swim bladder of Nibea coibor, and provide basis for further understanding of ctgf evolution and exploring new approach for enhancing collagen deposition in fish products during aquaculture.
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Affiliation(s)
- Fan Lin
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou 515063, China.
| | - Yuying Yuan
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou 515063, China
| | - Xiaokang Ye
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou 515063, China
| | - Jiehuan Lv
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou 515063, China
| | - Xin Liu
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou 515063, China
| | - Haoji Guo
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou 515063, China
| | - Xiaobo Wen
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
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