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Lin J, Zhang J, Dai W, Li X, Mohsen M, Li X, Lu K, Song K, Wang L, Zhang C. Low phosphorus increases hepatic lipid deposition, oxidative stress and inflammatory response via Acetyl-CoA carboxylase-dependent manner in zebrafish liver cells. FISH & SHELLFISH IMMUNOLOGY 2024; 146:109387. [PMID: 38272331 DOI: 10.1016/j.fsi.2024.109387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024]
Abstract
Acetyl-CoA carboxylase (ACC) plays a regulatory role in both fatty acid synthesis and oxidation, controlling the process of lipid deposition in the liver. Given that existing studies have shown a close relationship between low phosphorus (P) and hepatic lipid deposition, this study was conducted to investigate whether ACC plays a crucial role in this relationship. Zebrafish liver cell line (ZFL) was incubated under low P medium (LP, P concentration: 0.77 mg/L) or adequate P medium (AP, P concentration: 35 mg/L) for 240 h. The results showed that, compared with AP-treated cells, LP-treated cells displayed elevated lipid accumulation, and reduced fatty acid β-oxidation, ATP content, and mitochondrial mass. Furthermore, transcriptomics analysis revealed that LP-treated cells significantly increased lipid synthesis (Acetyl-CoA carboxylases (acc), Stearyl coenzyme A dehydrogenase (scd)) but decreased fatty acid β-oxidation (Carnitine palmitoyltransferase I (cptI)) and (AMP-activated protein kinase (ampk)) mRNA levels compared to AP-treated cells. The phosphorylation of AMPK and ACC, and the protein expression of CPTI were significantly decreased in LP-treated cells compared with those in AP-treated cells. After 240 h of LP treatment, PF-05175157 (an ACC inhibitor) was supplemented in the LP treatment for an additional 12 h. PF-05175157-treated cells showed higher phosphorylation of ACC, higher protein expression of CPTI, and lower protein expression of FASN, lower TG content, enhanced fatty acid β-oxidation, increased ATP content, and mitochondrial mass compared with LP-treated cells. PF-05175157 also relieved the LP-induced oxidative stress and inflammatory response. Overall, these findings suggest that ACC is a promising target for treating LP-induced elevation of lipid deposition in ZFL, and can alleviate oxidative stress and inflammatory response.
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Affiliation(s)
- Jibin Lin
- State Key Laboratory for Mariculture Breeding, Fisheries College of Jimei University, Xiamen, 361021, PR China
| | - Jilei Zhang
- State Key Laboratory for Mariculture Breeding, Fisheries College of Jimei University, Xiamen, 361021, PR China
| | - Weiwei Dai
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, 215000, PR China
| | - Xiao Li
- State Key Laboratory for Mariculture Breeding, Fisheries College of Jimei University, Xiamen, 361021, PR China
| | - Mohamed Mohsen
- State Key Laboratory for Mariculture Breeding, Fisheries College of Jimei University, Xiamen, 361021, PR China
| | - Xueshan Li
- State Key Laboratory for Mariculture Breeding, Fisheries College of Jimei University, Xiamen, 361021, PR China
| | - Kangle Lu
- State Key Laboratory for Mariculture Breeding, Fisheries College of Jimei University, Xiamen, 361021, PR China
| | - Kai Song
- State Key Laboratory for Mariculture Breeding, Fisheries College of Jimei University, Xiamen, 361021, PR China
| | - Ling Wang
- State Key Laboratory for Mariculture Breeding, Fisheries College of Jimei University, Xiamen, 361021, PR China
| | - Chunxiao Zhang
- State Key Laboratory for Mariculture Breeding, Fisheries College of Jimei University, Xiamen, 361021, PR China.
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