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Liu R, Wang Q, Li Y, Wan R, Yang P, Yang D, Tang J, Lu J. Ginsenoside Rg1 Alleviates Sepsis-Induced Acute Lung Injury by Reducing FBXO3 Stability in an m 6A-Dependent Manner to Activate PGC-1α/Nrf2 Signaling Pathway. AAPS J 2024; 26:47. [PMID: 38622374 DOI: 10.1208/s12248-024-00919-5] [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] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 03/25/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND Sepsis-induced acute lung injury (ALI) is one of the serious life-threatening complications of sepsis and is pathologically associated with mitochondrial dysfunction. Ginsenoside Rg1 has good therapeutic effects on ALI. Herein, the pharmacological effects of Rg1 in sepsis-induced ALI were investigated. METHODS Sepsis-induced ALI models were established by CLP operation and LPS treatment. HE staining was adopted to analyze lung pathological changes. The expression and secretion of cytokines were measured by RT-qPCR and ELISA. Cell viability and apoptosis were assessed by MTT assay, flow cytometry and TUNEL staining. ROS level and mitochondrial membrane potential (MMP) were analyzed using DHE probe and JC-1 staining, respectively. FBXO3 m6A level was assessed using MeRIP assay. The interactions between FBXO3, YTHDF1, and PGC-1α were analyzed by Co-IP or RIP. RESULTS Rg1 administration ameliorated LPS-induced epithelial cell inflammation, apoptosis, and mitochondrial dysfunction in a dose-dependent manner. Mechanically, Rg1 reduced PGC-1α ubiquitination modification level by inhibiting FBXO3 expression m6A-YTHDF1 dependently. As expected, Rg1's mitigative effect on LPS-induced inflammation, apoptosis and mitochondrial dysfunction in lung epithelial cells was abolished by FBXO3 overexpression. Moreover, FBXO3 upregulation eliminated the restoring effect of Rg1 on CLP-induced lung injury in rats. CONCLUSION Rg1 activated PGC-1α/Nrf2 signaling pathway by reducing FBXO3 stability in an m6A-YTHDF1-dependent manner to improve mitochondrial function in lung epithelial cells during sepsis-induced ALI progression.
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Affiliation(s)
- Rong Liu
- Department of Geriatric Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Yunnan Geriatric Medical Center, No.295, Xichang Road, Wuhua District, Kunming, 650032, Yunnan Province, People's Republic of China.
| | - Qiang Wang
- Department of Geriatric Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Yunnan Geriatric Medical Center, No.295, Xichang Road, Wuhua District, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Yao Li
- Department of Stomatology, The First People's Hospital of Yunnan Province, Kunming, 650034, Yunnan Province, People's Republic of China
| | - Ruixue Wan
- Department of Reproductive Genetics, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Ping Yang
- Department of Anatomy and Histology, School of Basic Medical Sciences, Kunming Medical University, Kunming, 650500, Yunnan Province, People's Republic of China
| | - Dexing Yang
- Department of Emergency Room of Internal, The First People's Hospital of Yunnan Province, Kunming, 650034, Yunnan Province, People's Republic of China
| | - Jiefu Tang
- Department of Geriatric Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Yunnan Geriatric Medical Center, No.295, Xichang Road, Wuhua District, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Jiafei Lu
- Department of Geriatric Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Yunnan Geriatric Medical Center, No.295, Xichang Road, Wuhua District, Kunming, 650032, Yunnan Province, People's Republic of China
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