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Hua H, Zhao QQ, Kalagbor MN, Yu GZ, Liu M, Bian ZR, Zhang BB, Yu Q, Xu YH, Tang RX, Zheng KY, Yan C. Recombinant adeno-associated virus 8-mediated inhibition of microRNA let-7a ameliorates sclerosing cholangitis in a clinically relevant mouse model. World J Gastroenterol 2024; 30:471-484. [PMID: 38414587 PMCID: PMC10895596 DOI: 10.3748/wjg.v30.i5.471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/17/2023] [Accepted: 01/12/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Primary sclerosing cholangitis (PSC) is characterized by chronic inflammation and it predisposes to cholangiocarcinoma due to lack of effective treatment options. Recombinant adeno-associated virus (rAAV) provides a promising platform for gene therapy on such kinds of diseases. A microRNA (miRNA) let-7a has been reported to be associated with the progress of PSC but the potential therapeutic implication of inhibition of let-7a on PSC has not been evaluated. AIM To investigate the therapeutic effects of inhibition of a miRNA let-7a transferred by recombinant adeno-associated virus 8 (rAAV8) on a xenobiotic-induced mouse model of sclerosing cholangitis. METHODS A xenobiotic-induced mouse model of sclerosing cholangitis was induced by 0.1% 3,5-Diethoxycarbonyl-1,4-Dihydrocollidine (DDC) feeding for 2 wk or 6 wk. A single dose of rAAV8-mediated anti-let-7a-5p sponges or scramble control was injected in vivo into mice onset of DDC feeding. Upon sacrifice, the liver and the serum were collected from each mouse. The hepatobiliary injuries, hepatic inflammation and fibrosis were evaluated. The targets of let-7a-5p and downstream molecule NF-κB were detected using Western blot. RESULTS rAAV8-mediated anti-let-7a-5p sponges can depress the expression of let-7a-5p in mice after DDC feeding for 2 wk or 6 wk. The reduced expression of let-7a-5p can alleviate hepato-biliary injuries indicated by serum markers, and prevent the proliferation of cholangiocytes and biliary fibrosis. Furthermore, inhibition of let-7a mediated by rAAV8 can increase the expression of potential target molecules such as suppressor of cytokine signaling 1 and Dectin1, which consequently inhibit of NF-κB-mediated hepatic inflammation. CONCLUSION Our study demonstrates that a rAAV8 vector designed for liver-specific inhibition of let-7a-5p can potently ameliorate symptoms in a xenobiotic-induced mouse model of sclerosing cholangitis, which provides a possible clinical translation of PSC of human.
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Affiliation(s)
- Hui Hua
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Qian-Qian Zhao
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Miriam Nkesichi Kalagbor
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Guo-Zhi Yu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Man Liu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Zheng-Rui Bian
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Bei-Bei Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Qian Yu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Yin-Hai Xu
- Department of Laboratory Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Ren-Xian Tang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Kui-Yang Zheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Chao Yan
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, National Demonstration Center for Experimental Basic Medical Science Education, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
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Wei S, Ma X, Zhao Y. Mechanism of Hydrophobic Bile Acid-Induced Hepatocyte Injury and Drug Discovery. Front Pharmacol 2020; 11:1084. [PMID: 32765278 PMCID: PMC7378542 DOI: 10.3389/fphar.2020.01084] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 07/03/2020] [Indexed: 12/13/2022] Open
Abstract
Cholestatic liver disease is caused by the obstruction of bile synthesis, transport, and excretion in or outside the liver by a variety of reasons. Long-term persistent cholestasis in the liver can trigger inflammation, necrosis, or apoptosis of hepatocytes. Bile acid nuclear receptors have received the most attention for the treatment of cholestasis, while the drug development for bile acid nuclear receptors has made considerable progress. However, the targets regulated by bile acid receptor drugs are limited. Thus, as anticipated, intervention in the expression of bile acid nuclear receptors alone will not yield satisfactory clinical results. Therefore, this review comprehensively summarized the literature related to cholestasis, analyzed the molecular mechanism that bile acid damages cells, and status of drug development. It is hoped that this review will provide some reference for the research and development of drugs for cholestasis treatment in the future.
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Affiliation(s)
- Shizhang Wei
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Pharmacy, PLA General Hospital, Beijing, China
| | - Xiao Ma
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yanling Zhao
- Department of Pharmacy, PLA General Hospital, Beijing, China
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Wei S, Ma X, Zhao Y. Mechanism of Hydrophobic Bile Acid-Induced Hepatocyte Injury and Drug Discovery. Front Pharmacol 2020. [PMID: 32765278 DOI: 10.3389/fphar.2020.01084/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023] Open
Abstract
Cholestatic liver disease is caused by the obstruction of bile synthesis, transport, and excretion in or outside the liver by a variety of reasons. Long-term persistent cholestasis in the liver can trigger inflammation, necrosis, or apoptosis of hepatocytes. Bile acid nuclear receptors have received the most attention for the treatment of cholestasis, while the drug development for bile acid nuclear receptors has made considerable progress. However, the targets regulated by bile acid receptor drugs are limited. Thus, as anticipated, intervention in the expression of bile acid nuclear receptors alone will not yield satisfactory clinical results. Therefore, this review comprehensively summarized the literature related to cholestasis, analyzed the molecular mechanism that bile acid damages cells, and status of drug development. It is hoped that this review will provide some reference for the research and development of drugs for cholestasis treatment in the future.
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Affiliation(s)
- Shizhang Wei
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Pharmacy, PLA General Hospital, Beijing, China
| | - Xiao Ma
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yanling Zhao
- Department of Pharmacy, PLA General Hospital, Beijing, China
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