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Xue M, Xu P, Wen H, Chen J, Wang Q, He J, He C, Kong C, Song C, Li H. Peroxisome Proliferator-Activated Receptor Signaling-Mediated 13-S-Hydroxyoctadecenoic Acid Is Involved in Lipid Metabolic Disorder and Oxidative Stress in the Liver of Freshwater Drum, Aplodinotus grunniens. Antioxidants (Basel) 2023; 12:1615. [PMID: 37627610 PMCID: PMC10451990 DOI: 10.3390/antiox12081615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/04/2023] [Accepted: 08/12/2023] [Indexed: 08/27/2023] Open
Abstract
The appropriate level of dietary lipids is essential for the nutrient requirements, rapid growth, and health maintenance of aquatic animals, while excessive dietary lipid intake will lead to lipid deposition and affect fish health. However, the symptoms of excessive lipid deposition in the liver of freshwater drums (Aplodinotus grunniens) remain unclear. In this study, a 4-month rearing experiment feeding with high-fat diets and a 6-week starvation stress experiment were conducted to evaluate the physiological alteration and underlying mechanism associated with lipid deposition in the liver of A. grunniens. From the results, high-fat-diet-induced lipid deposition was associated with increased condition factor (CF), viscerosomatic index (VSI), and hepatosomatic index (HSI). Meanwhile, lipid deposition led to physiological and metabolic disorders, inhibited antioxidant capacity, and exacerbated the burden of lipid metabolism. Lipid deposition promoted fatty acid synthesis but suppressed catabolism. Specifically, the transcriptome and metabolome showed significant enrichment of lipid metabolism and antioxidant pathways. In addition, the interaction analysis suggested that peroxisome proliferator-activated receptor (PPAR)-mediated 13-S-hydroxyoctadecenoic acid (13 (s)-HODE) could serve as the key target in regulating lipid metabolism and oxidative stress during lipid deposition in A. grunniens. Inversely, with a lipid intake restriction experiment, PPARs were confirmed to regulate lipid expenditure and physiological homeostasis in A. grunniens. These results uncover the molecular basis of and provide specific molecular targets for fatty liver control and prevention, which are of great importance for the sustainable development of A. grunniens.
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Affiliation(s)
- Miaomiao Xue
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; (M.X.); (P.X.); (H.W.); (J.C.); (Q.W.); (J.H.); (C.H.); (C.K.)
| | - Pao Xu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; (M.X.); (P.X.); (H.W.); (J.C.); (Q.W.); (J.H.); (C.H.); (C.K.)
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Haibo Wen
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; (M.X.); (P.X.); (H.W.); (J.C.); (Q.W.); (J.H.); (C.H.); (C.K.)
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Jianxiang Chen
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; (M.X.); (P.X.); (H.W.); (J.C.); (Q.W.); (J.H.); (C.H.); (C.K.)
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Qingyong Wang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; (M.X.); (P.X.); (H.W.); (J.C.); (Q.W.); (J.H.); (C.H.); (C.K.)
| | - Jiyan He
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; (M.X.); (P.X.); (H.W.); (J.C.); (Q.W.); (J.H.); (C.H.); (C.K.)
| | - Changchang He
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; (M.X.); (P.X.); (H.W.); (J.C.); (Q.W.); (J.H.); (C.H.); (C.K.)
| | - Changxin Kong
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; (M.X.); (P.X.); (H.W.); (J.C.); (Q.W.); (J.H.); (C.H.); (C.K.)
| | - Changyou Song
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; (M.X.); (P.X.); (H.W.); (J.C.); (Q.W.); (J.H.); (C.H.); (C.K.)
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Hongxia Li
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; (M.X.); (P.X.); (H.W.); (J.C.); (Q.W.); (J.H.); (C.H.); (C.K.)
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
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