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Cai Y, Shi H, Zheng Y, Zhou Y, Guo W, Liao J, Wang S. Long-Term Phellodendri Cortex Supplementation in the Tiger Grouper ( Epinephelus fuscoguttatus): Dual Effects on Intestinal Health Revealed by Transcriptome Analysis. Life (Basel) 2023; 13:2336. [PMID: 38137937 PMCID: PMC10745030 DOI: 10.3390/life13122336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/01/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
The tiger grouper (Epinephelus fuscoguttatus), an important mariculture fish in Southeast Asia, faces increasing health issues in recent years. Phellodendri Cortex (PC) is a traditional Chinese herbal medicine that exhibits a variety of beneficial effects on tiger groupers. The effects of PC, however, varies with the period of dietary intervention. This study aims to investigate the long-term effects of 1% PC supplementation on tiger groupers, focusing on growth, immunity, disease resistance, and intestinal gene expression. The tiger groupers (with an initial mean weight of 27.5 ± 0.5 g) were fed with a diet of Phellodendri Cortex supplementation and a control diet for 8 weeks. Our results indicate that the long-term PC supplementation did not affect growth or Vibrio disease resistance in tiger groupers. However, the transcriptome analysis revealed potential damage to the structural and functional integrity of the groupers' intestines. On the other hand, anti-inflammatory and cathepsin inhibition effects were also observed, offering potential benefits to fish enteritis prevention and therapy. Therefore, long-term PC supplementation in grouper culture should be applied with caution.
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Affiliation(s)
- Yan Cai
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China; (Y.C.); (H.S.)
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, School of Marine Biology and Fisheries, Hainan University, Haikou 570228, China
| | - Huizhong Shi
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China; (Y.C.); (H.S.)
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, School of Marine Biology and Fisheries, Hainan University, Haikou 570228, China
| | - Yu Zheng
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China; (Y.C.); (H.S.)
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, School of Marine Biology and Fisheries, Hainan University, Haikou 570228, China
| | - Yongcan Zhou
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China; (Y.C.); (H.S.)
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, School of Marine Biology and Fisheries, Hainan University, Haikou 570228, China
| | - Weiliang Guo
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China; (Y.C.); (H.S.)
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, School of Marine Biology and Fisheries, Hainan University, Haikou 570228, China
| | - Jingqiu Liao
- Guangxi Academy of Sciences, Nanning 530007, China
| | - Shifeng Wang
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China; (Y.C.); (H.S.)
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, School of Marine Biology and Fisheries, Hainan University, Haikou 570228, China
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Xue R, Yang D, Han Y, Deng Q, Wang X, Liu X, Zhao J. 14-3-3ζ and 14-3-3ε are involved in innate immune responses in Pacific abalone (Haliotis discus hannai). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 124:104176. [PMID: 34153282 DOI: 10.1016/j.dci.2021.104176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 06/15/2021] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
The 14-3-3 proteins play important roles in various cellular processes by binding to different ligands, but little is known about these proteins in mollusks. In this study, two 14-3-3 cDNAs were identified from the Pacific abalone Haliotis discus hannai (designated 14-3-3ζ and 14-3-3ε), possessing 59.40% identity with each other. Both genes were predominantly expressed in the gills of unchallenged abalones, and their mRNA signals could also be detected in several other tissues, including the mantle, hepatopancreas and ovary. However, after Vibrio harveyi challenge, hemocytes were induced significantly (p < 0.01). Meanwhile, phagocytosis was inhibited, but apoptosis, reactive oxygen species formation, and caspase 3 expression were significantly induced (p < 0.01), and they were all suppressed with 14-3-3ζ knockdown (p < 0.01). The differences were that silencing 14-3-3ε reverted the decline in the phagocytic rate derived from bacterial infection, while ROS formation was not influenced significantly. In addition, the expression levels of several antimicrobial peptide and proinflammatory cytokine genes were also decreased with the silencing of 14-3-3 genes. However, with the knockdown of 14-3-3ζ, the expression of 14-3-3ε was further significantly increased (p < 0.01), and vice versa. Overall, our results suggested that 14-3-3ζ and 14-3-3ε should play important roles in innate immunity against V. harveyi infection.
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Affiliation(s)
- Rui Xue
- Muping Coastal Environmental Research Station, Yantai Institute of Coastal Zone Research, Yantai Shandong, 264117, PR China; Center for Ocean Mega-science, Chinese Academy of Sciences, Qingdao Shandong, 266071, PR China; Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai Shandong, 264003, PR China
| | - Dinglong Yang
- Muping Coastal Environmental Research Station, Yantai Institute of Coastal Zone Research, Yantai Shandong, 264117, PR China; Center for Ocean Mega-science, Chinese Academy of Sciences, Qingdao Shandong, 266071, PR China; Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai Shandong, 264003, PR China.
| | - Yijing Han
- Muping Coastal Environmental Research Station, Yantai Institute of Coastal Zone Research, Yantai Shandong, 264117, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Qinyou Deng
- Shandong Marine Resource and Environment Research Institute, Yantai, 264006, PR China
| | - Xin Wang
- Muping Coastal Environmental Research Station, Yantai Institute of Coastal Zone Research, Yantai Shandong, 264117, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Xiangquan Liu
- Shandong Marine Resource and Environment Research Institute, Yantai, 264006, PR China
| | - Jianmin Zhao
- Muping Coastal Environmental Research Station, Yantai Institute of Coastal Zone Research, Yantai Shandong, 264117, PR China; Center for Ocean Mega-science, Chinese Academy of Sciences, Qingdao Shandong, 266071, PR China; Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai Shandong, 264003, PR China.
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