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Liu G, Wang YH, Zhang T, Li YQ, Chen XY, Dong W, Li W, Miao QX, Qiao WB, Tian HQ, Yin SL. Astragaloside-IV promotes autophagy via the Akt/mTOR pathway to improve cellular lipid deposition. Medicine (Baltimore) 2024; 103:e37846. [PMID: 38640324 PMCID: PMC11030007 DOI: 10.1097/md.0000000000037846] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/22/2024] [Accepted: 03/19/2024] [Indexed: 04/21/2024] Open
Abstract
The current study aimed to investigate the potential role of astragaloside IV (AS-IV) in improving cellular lipid deposition and its underlying mechanism. A fatty liver cell model was established by treating hepatoma cells with palmitic acid. AS-IV and SC79 were used for treatment. Oil Red O staining was applied to detect intracellular lipid deposition, and transmission electron microscopy was utilized to assess autophagosome formation. Immunofluorescence double staining was applied to determine microtubule-associated proteins 1A/1B light chain 3 (LC3) expression. Western blot analysis was performed to detect the expression of LC3, prostacyclin, Beclin-1, V-akt murine thymoma viral oncogene homolog (Akt), phosphorylated Akt, mTOR, and phosphorylated mTOR. Oil Red O staining revealed that AS-IV reduced intracellular lipid accumulation. Further, it increased autophagosome synthesis and the expression of autophagy proteins LC3 and Beclin-1 in the cells. It also reduced the phosphorylation levels of Akt and mTOR and the levels of prostacyclin. However, the effects of AS-IV decreased with SC79 treatment. In addition, LC3B + BODIPY493/503 fluorescence double staining showed that AS-IV reduced intracellular lipid deposition levels by enhancing autophagy. AS-IV can reduce lipid aggregation in fatty liver cells, which can be related to enhanced hepatocyte autophagy by inhibiting the Akt/mTOR signaling pathway.
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Affiliation(s)
- Guo Liu
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Ye-Hui Wang
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
- Sichuan Province Orthopedic Hospital, Chengdu, Sichuan, China
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Ting Zhang
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Ya-Qiong Li
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Xin-Yue Chen
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Wei Dong
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Wei Li
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Qi-Xiang Miao
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Wen-Bo Qiao
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Hui-Qiang Tian
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Shi-Long Yin
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
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