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Rabelo ACS, Andrade AKDL, Costa DC. The Role of Oxidative Stress in Alcoholic Fatty Liver Disease: A Systematic Review and Meta-Analysis of Preclinical Studies. Nutrients 2024; 16:1174. [PMID: 38674865 PMCID: PMC11055095 DOI: 10.3390/nu16081174] [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: 03/14/2024] [Revised: 04/05/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Alcoholic Fatty Liver Disease (AFLD) is characterized by the accumulation of lipids in liver cells owing to the metabolism of ethanol. This process leads to a decrease in the NAD+/NADH ratio and the generation of reactive oxygen species. A systematic review and meta-analysis were conducted to investigate the role of oxidative stress in AFLD. A total of 201 eligible manuscripts were included, which revealed that animals with AFLD exhibited elevated expression of CYP2E1, decreased enzymatic activity of antioxidant enzymes, and reduced levels of the transcription factor Nrf2, which plays a pivotal role in the synthesis of antioxidant enzymes. Furthermore, animals with AFLD exhibited increased levels of lipid peroxidation markers and carbonylated proteins, collectively contributing to a weakened antioxidant defense and increased oxidative damage. The liver damage in AFLD was supported by significantly higher activity of alanine and aspartate aminotransferase enzymes. Moreover, animals with AFLD had increased levels of triacylglycerol in the serum and liver, likely due to reduced fatty acid metabolism caused by decreased PPAR-α expression, which is responsible for fatty acid oxidation, and increased expression of SREBP-1c, which is involved in fatty acid synthesis. With regard to inflammation, animals with AFLD exhibited elevated levels of pro-inflammatory cytokines, including TNF-a, IL-1β, and IL-6. The heightened oxidative stress, along with inflammation, led to an upregulation of cell death markers, such as caspase-3, and an increased Bax/Bcl-2 ratio. Overall, the findings of the review and meta-analysis indicate that ethanol metabolism reduces important markers of antioxidant defense while increasing inflammatory and apoptotic markers, thereby contributing to the development of AFLD.
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Affiliation(s)
- Ana Carolina Silveira Rabelo
- Postgraduate Program in Biological Sciences, Federal University of Ouro Preto, Ouro Preto 35402-163, Brazil
- Department of Biochemistry, Federal University of Alfenas, Alfenas 37130-001, Brazil
| | | | - Daniela Caldeira Costa
- Postgraduate Program in Biological Sciences, Federal University of Ouro Preto, Ouro Preto 35402-163, Brazil
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HAN M, YI X, YOU S, WU X, WANG S, HE D. Gehua Jiejiu Dizhi decoction ameliorates alcoholic fatty liver in mice by regulating lipid and bile acid metabolism and with exertion of antioxidant stress based on 4DLabel-free quantitative proteomic study. J TRADIT CHIN MED 2024; 44:277-288. [PMID: 38504534 PMCID: PMC10927405 DOI: 10.19852/j.cnki.jtcm.20231018.001] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 04/27/2023] [Indexed: 03/21/2024]
Abstract
OBJECTIVE To analyze the effect and molecular mechanism of Gehua Jiejiu Dizhi decoction (, GJDD) on alcoholic fatty live disease (AFLD) by using proteomic methods. METHODS The male C57BL/6J mouse were randomly divided into four groups: control group, model group, GJDD group and resveratrol group. After the AFLD model was successfully prepared by intragastric administration of alcohol once on the basis of the Lieber-DeCarli classical method, the GJDD group and resveratrol group were intragastrically administered with GJDD (4900 mg/kg) and resveratrol (400 mg/kg) respectively, once a day for 9 d. The fat deposition of liver tissue was observed and evaluated by oil red O (ORO) staining. 4DLabel-free quantitative proteome method was used to determine and quantify the protein expression in liver tissue of each experimental group. The differentially expressed proteins were screened according to protein expression differential multiples, and then analyzed by Gene ontology classification and Kyoto Encyclopedia of Genes and Genomes pathway enrichment. Finally, expression validation of the differentially co-expressed proteins from control group, model group and GJDD group were verified by targeted proteomics quantification techniques. RESULTS In semiquantitative analyses of ORO, all kinds of steatosis (ToS, MaS, and MiS) were evaluated higher in AFLD mice compared to those in GJDD or resveratrol-treated mice. 4DLabel-free proteomics analysis results showed that a total of 4513 proteins were identified, of which 3763 proteins were quantified and 946 differentially expressed proteins were screened. Compared with the control group, 145 proteins were up-regulated and 148 proteins were down-regulated in the liver tissue of model group. In addition, compared with the model group, 92 proteins were up-regulated and 135 proteins were down-regulated in the liver tissue of the GJDD group. 15 differentially co-expressed proteins were found between every two groups (model group vs control group, GJDD group vs model group and GJDD group vs control group), which were involved in many biological processes. Among them, 11 differentially co-expressed key proteins (Aox3, H1-5, Fabp5, Ces3a, Nudt7, Serpinb1a, Fkbp11, Rpl22l1, Keg1, Acss2 and Slco1a1) were further identified by targeted proteomic quantitative technology and their expression patterns were consistent with the results of 4D label-free proteomic analysis. CONCLUSIONS Our study provided proteomics-based evidence that GJDD alleviated AFLD by modulating liver protein expression, likely through the modulation of lipid metabolism, bile acid metabolism and with exertion of antioxidant stress.
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Affiliation(s)
- Min HAN
- 1 Guizhou University of Traditional Chinese Medicine, Graduate School, Guiyang 550025, China
| | - Xu YI
- 2 Department of Clinical medical laboratory, Department of Gastroenterology, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550003, China
| | - Shaowei YOU
- 2 Department of Clinical medical laboratory, Department of Gastroenterology, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550003, China
| | - Xueli WU
- 2 Department of Clinical medical laboratory, Department of Gastroenterology, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550003, China
| | - Shuoshi WANG
- 2 Department of Clinical medical laboratory, Department of Gastroenterology, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550003, China
| | - Diancheng HE
- 2 Department of Clinical medical laboratory, Department of Gastroenterology, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550003, China
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Yang HX, Jiang XL, Zuo RM, Wu YL, Nan JX, Lian LH. Targeting RXFP1 by Ligustilide: A novel therapeutic approach for alcoholic hepatic steatosis. Int Immunopharmacol 2024; 127:111460. [PMID: 38157696 DOI: 10.1016/j.intimp.2023.111460] [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: 11/24/2023] [Revised: 12/21/2023] [Accepted: 12/25/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Ligustilide (Lig) is the main active ingredient of Umbelliferae Angelicae Sinensis Radix (Chinese Angelica) and Chuanxiong Rhizoma (Sichuan lovase rhizome). Lig possesses various pharmacological properties and could treat obesity by regulating energy metabolism. However, the impact and regulatory mechanism of Lig on alcoholic hepatic steatosis remains unclear. PURPOSE This study aimed to explore the therapeutic effect of Lig on alcoholic hepatic steatosis and its related pharmacological mechanism. RESULTS With chronic and binge ethanol feeding, liver tissue damage and lipid accumulation in mice suffering alcoholic hepatic steatosis were significantly improved after Lig treatment. Lig effectively regulated the expression levels of lipid metabolism-related proteins in alcoholic hepatic steatosis. In addition, Lig reduced RXFP1 expression, inhibited the activation of NLRP3 inflammasome, and blocked NET formation. Lig reduced the infiltration of immune cells to the liver and the further prevented the occurrence of alcohol-stimulated inflammatory response in liver. Lig significantly regulated lipid accumulation in alcohol exposed AML12 cells via modulating PPARα and SREBP1. In MPMs, Lig decreased the expression of RXFP1, inhibited the activation of NLRP3 in macrophages stimulated by LPS/ATP, and slowed down the occurrence of inflammatory response. CONCLUSION Lig sustained lipid metabolism homeostasis in alcoholic hepatic steatosis, through inhibiting the activation of NLRP3 inflammasomes and the formation of NETs, especially targeting RXFP1 in macrophages.
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Affiliation(s)
- Hong-Xu Yang
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Xue-Li Jiang
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Rong-Mei Zuo
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Yan-Ling Wu
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Ji-Xing Nan
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China.
| | - Li-Hua Lian
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China; Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China.
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Zhang S, Ji B, Li J, Ji W, Yang C, Yang L. FBXL5 promotes lipid accumulation in alcoholic fatty liver disease by promoting the ubiquitination and degradation of TFEB. Cell Signal 2023; 112:110905. [PMID: 37743009 DOI: 10.1016/j.cellsig.2023.110905] [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: 07/04/2023] [Revised: 09/09/2023] [Accepted: 09/22/2023] [Indexed: 09/26/2023]
Abstract
BACKGROUND Alcoholic fatty liver disease (AFLD) is characterized by abnormal lipid droplet accumulation in liver. Epigenetic regulation plays an important role in the pathogenesis of AFLD. Comprehensive bioinformatics analysis revealed that an E3 ubiquitin ligase, F-box and leucine-rich repeats protein 5 (FBXL5), was significantly upregulated in AFLD mice. METHODS The mouse model of AFLD was established by feeding Lieber-DeCarli liquid diet containing ethanol. An in vitro model of AFLD was established by treating HepG2 cells with ethanol (EtOH). The FBXL5 expression was assessed by quantitative real-time PCR (qRT-PCR) and western blotting assays. The levels of triglyceride (TG), alanine aminotransferase (ALT), aspartate aminotransferase (AST), and lipid accumulation were analyzed by enzyme-linked immunosorbent assay (ELISA) and Nile red staining. RESULTS The FBXL5 expression was markedly up-regulated in in vivo and in vitro models of AFLD compared with controls. Functionally, FBXL5 knockdown alleviated lipid accumulation in EtOH-treated HepG2 cells. Mechanistically, FBXL5 directly interacted with transcription factor EB (TFEB) and accelerated its ubiquitination-mediated degradation. TFEB knockdown reversed the effect of FBXL5 inhibition on decreasing EtOH-induced lipid accumulation. CONCLUSION Our data suggest that FBXL5 promotes lipid accumulation in AFLD by promoting the ubiquitination and degradation of TFEB.
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Affiliation(s)
- Shuo Zhang
- Department of Gastroenterology and Hepatology, School of Medicine, Shanghai Tongji Hospital, Tongji University, Shanghai 200092, China
| | - Bing Ji
- Department of Gastroenterology and Hepatology, School of Medicine, Shanghai Tongji Hospital, Tongji University, Shanghai 200092, China
| | - Jing Li
- Department of Gastroenterology and Hepatology, School of Medicine, Shanghai Tongji Hospital, Tongji University, Shanghai 200092, China
| | - Wenjing Ji
- Department of Gastroenterology, Second Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
| | - Changqing Yang
- Department of Gastroenterology and Hepatology, School of Medicine, Shanghai Tongji Hospital, Tongji University, Shanghai 200092, China.
| | - Li Yang
- Department of Gastroenterology and Hepatology, School of Medicine, Shanghai Tongji Hospital, Tongji University, Shanghai 200092, China; Department of Gastroenterology, Second Affiliated Hospital of Xinjiang Medical University, Ürümqi, China.
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Zhou D, Yuan Z, Shu X, Tang H, Li J, Ye Y, Tao N, Zhou F, Zhang J, Zheng J, Wu Q, Zhang J. Diagnostic significance of alanine aminotransferase isoenzymes in alcoholic and non-alcoholic fatty liver cancers. Biosci Rep 2023; 43:BSR20230222. [PMID: 37883219 DOI: 10.1042/bsr20230222] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 03/02/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 10/28/2023] Open
Abstract
OBJECTIVES Alanine aminotransferase (ALT) expression is highly elevated in the serum of patients with hepatocellular carcinoma. However, the role of ALT isoenzymes in the total ALT activity remains unclear. In the present study, we systematically investigated the role of ALT isoenzymes in alcoholic and non-alcoholic fatty liver cancer. MATERIALS AND METHODS The expression of ALT1 and ALT2 at the mRNA and protein levels in 25 paired primary liver cancer tissues was detected by reverse transcription quantitative PCR (RT-qPCR), Western blotting, and immunohistochemistry. Serum ALT activity was determined using an automated biochemical analyzer. RESULTS The mRNA and protein expression levels of ALT1 and ALT2 were lower in the tissues of alcoholic and non-alcoholic fatty liver cancers than in the paracancerous tissues. Notably, ALT2 was highly expressed in non-alcoholic fatty liver cancer tissues compared with alcoholic fatty liver cancer tissues. Total serum ALT activity was mainly contributed by ALT1 in alcoholic fatty liver cancer, whereas ALT1 contributed only marginally more to the total ALT activity than ALT2 in non-alcoholic fatty liver cancer. ALT2/ALT1 ratio can well discriminate normal control group, alcoholic liver cancer and non-alcoholic liver cancer. CONCLUSION ALT1 contributed more to the total ALT activity than ALT2 in both alcoholic and non-alcoholic fatty liver cancer. Serum ALT2 to ALT activity was higher in non-alcoholic fatty liver cancer than that in alcoholic fatty liver cancer. ALT2/ALT1 ratio has some diagnostic significance for alcoholic and non-alcoholic liver cancer.
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Affiliation(s)
- Dandan Zhou
- Department of Clinical Laboratory, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
- Laboratory for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Zuowei Yuan
- Department of Clinical Laboratory, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Xiaoqin Shu
- Department of Clinical Laboratory, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Hejun Tang
- Department of Clinical Laboratory, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Jie Li
- Department of Clinical Laboratory, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Yangmin Ye
- Department of Clinical Laboratory, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Nana Tao
- Department of Clinical Laboratory, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Fangzhu Zhou
- Department of Clinical Laboratory, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Jun Zhang
- Artron BioResearch Inc., 3938 North Fraser Way, Burnaby, British Columbia, Canada
- Jinan Kangbo Biotechnology, 2711 Ying Xiu Road, Jinan, Shandong Province, China
| | - Jian Zheng
- Artron BioResearch Inc., 3938 North Fraser Way, Burnaby, British Columbia, Canada
- Jinan Kangbo Biotechnology, 2711 Ying Xiu Road, Jinan, Shandong Province, China
| | - Qian Wu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Chongqing, China
| | - Juan Zhang
- Department of Clinical Laboratory, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
- Laboratory for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
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Wang C, Gong B, Peng D, Liu Y, Wu Y, Wei J. Agarwood extract mitigates alcoholic fatty liver in C57 mice via anti‑oxidation and anti‑inflammation. Mol Med Rep 2023; 28:210. [PMID: 37772395 PMCID: PMC10552066 DOI: 10.3892/mmr.2023.13097] [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: 12/18/2022] [Accepted: 09/01/2023] [Indexed: 09/30/2023] Open
Abstract
Alcoholic fatty liver disease (AFLD) is a disease with a high incidence rate among individuals who drink alcohol. Our previous study found that agarwood alcohol extracts (AAEs) have a protective effect against drug‑induced liver damage via anti‑inflammatory and antioxidant mechanisms. Therefore, we hypothesized that agarwood may have a protective effect against AFLD. The present study assessed the potential protective effects and the underlying mechanism of action of AAEs for the treatment of an AFL in vivo model. The AFLD mouse model was established by continuous high fat diet and alcohol gavage in C57 mice. After treatment with AAEs, blood was collected, liver and adipose tissues were removed and liver and adipose indexes were analyzed. The levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), triglyceride (TG) and cholesterol (CHO) in serum were detected. The liver tissue was assessed using pathological sections. Biochemical methods were used to detect the levels of oxidative stress in the supernatant of liver tissue homogenate. The levels of pro‑inflammatory cytokines in the serum were detected by ELISA. The protein expression levels of nuclear erythroid 2‑related factor 2 (Nrf2) and nuclear factor kappa‑B (NF‑κB) in liver tissues were detected using western blotting. AAE treatment decreased the liver and adipose indexes, reduced the levels of AST, ALT, TG and CHO, improved the liver pathological characteristics and enhanced antioxidant and anti‑inflammatory activities. In addition, AAEs increased the protein expression level of Nrf2 and decreased the protein expression level of NF‑κB compared with AFL mice. AAE‑treated animals exhibited reduced metabolic enzyme and blood lipid levels, demonstrated improved liver function and relieved the pathological damage of AFLD induced by consuming a high fat and alcohol diet. AAEs have potential protective effects in AFLD via antioxidant and anti‑inflammatory mechanisms.
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Affiliation(s)
- Canhong Wang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, Hainan 570311, P.R. China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, Guangdong 525099, P.R. China
| | - Bao Gong
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, Hainan 570311, P.R. China
| | - Deqian Peng
- Sinopec Maoming Petrochemical Co., Ltd., Maoming, Guangdong 525000, P.R. China
| | - Yangyang Liu
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, Hainan 570311, P.R. China
| | - Yulan Wu
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, Hainan 570311, P.R. China
| | - Jianhe Wei
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, Hainan 570311, P.R. China
- National Engineering Laboratory for Breeding of Endangered Medicinal Materials and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, P.R. China
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Wang D, Zhang R, Qin X, Wang J, Hu Y, Lu S, Kan J, Ge Y, Jin K, Zhang WS, Liu Y. S100a16 Deficiency Prevents Alcohol-induced Fatty Liver Injury via Inducing MANF Expression in Mice. Int J Biol Sci 2023; 19:5074-5088. [PMID: 37928262 PMCID: PMC10620815 DOI: 10.7150/ijbs.84472] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 08/26/2023] [Indexed: 11/07/2023] Open
Abstract
Alcoholic liver disease (ALD) encompasses conditions ranging from simple steatosis to cirrhosis and even liver cancer. It has gained significant global attention in recent years. Despite this, effective pharmacological treatments for ALD remain elusive, and the core mechanisms underlying the disease are not yet fully comprehended. S100A16, a newly identified calcium-binding protein, is linked to lipid metabolism. Our research has discovered elevated levels of the S100A16 protein in both serum and liver tissue of ALD patients. A similar surge in hepatic S100A16 expression was noted in a Gao-binge alcohol feeding mouse model. S100a16 knockdown alleviated ethanol-induced liver injury, steatosis and inflammation. Conversely, S100a16 transgenic mice showed aggravating phenomenon. Mechanistically, we identify mesencephalic astrocyte-derived neurotrophic factor (MANF) as a regulated entity downstream of S100a16 deletion. MANF inhibited ER-stress signal transduction induced by alcohol stimulation. Meanwhile, MANF silencing suppressed the inhibition effect of S100a16 knockout on ethanol-induced lipid droplets accumulation in primary hepatocytes. Our data suggested that S100a16 deletion protects mice against alcoholic liver lipid accumulation and inflammation dependent on upregulating MANF and inhibiting ER stress. This offers a potential therapeutic avenue for ALD treatment.
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Affiliation(s)
- Dan Wang
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Rihua Zhang
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Xiaoxuan Qin
- Department of Neurology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Jizheng Wang
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Yifang Hu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Shan Lu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Jingbao Kan
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Yaoqi Ge
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Ke Jin
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Wen-Song Zhang
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
- Department of Pharmacy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Yun Liu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
- Department of Medical Informatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, China
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Mahalingam S, Bellamkonda R, Arumugam MK, Perumal SK, Yoon J, Casey C, Kharbanda K, Rasineni K. Glucagon-like peptide 1 receptor agonist, exendin-4, reduces alcohol-associated fatty liver disease. Biochem Pharmacol 2023; 213:115613. [PMID: 37209859 PMCID: PMC10351880 DOI: 10.1016/j.bcp.2023.115613] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/06/2023] [Accepted: 05/15/2023] [Indexed: 05/22/2023]
Abstract
Fatty liver is the earliest response to excessive ethanol consumption, which increases the susceptibility of the liver to develop advanced stage of liver disease. Our previous studies have revealed that chronic alcohol administration alters metabolic hormone levels and their functions. Of current interest to our laboratory is glucagon-like peptide 1 (GLP-1), a widely studied hormone known to reduce insulin resistance and hepatic fat accumulation in patients with metabolic-associated fatty liver disease. In this study, we examined the beneficial effects of exendin-4 (a GLP-1 receptor agonist) in an experimental rat model of ALD. Male Wistar rats were pair-fed the Lieber-DeCarli control or ethanol diet. After 4 weeks of this feeding regimen, a subset of rats in each group were intraperitoneally injected every other day with either saline or exendin-4 at a dose of 3 nmol/kg/day (total 13 doses) while still being fed their respective diet. At the end of the treatment, rats were fasted for 6 h and glucose tolerance test was conducted. The following day, the rats were euthanized, and the blood and tissue samples collected for subsequent analysis. We found that exendin-4 treatment had no significant effect on body weight gain among the experimental groups. Exendin-4-treated ethanol rats exhibited improved alcohol-induced alterations in liver/body weight and adipose/body weight ratio, serum ALT, NEFA, insulin, adiponectin and hepatic triglyceride levels. Reduction in indices of hepatic steatosis in exendin-4 treated ethanol-fed rats was attributed to improved insulin signaling and fat metabolism. These results strongly suggest that exendin-4 mitigates alcohol-associated hepatic steatosis by regulating fat metabolism.
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Affiliation(s)
- Sundararajan Mahalingam
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Ramesh Bellamkonda
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Madan Kumar Arumugam
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States
| | - Sathish Kumar Perumal
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States
| | - Jessica Yoon
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Carol Casey
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States
| | - Kusum Kharbanda
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States
| | - Karuna Rasineni
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States.
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Dong J, Du C, Xu C, Wang Q, Wang Z, Zhu Q, Lv X, Zhang L, Li J, Huang C, Wang H, Ma T. Verbenalin attenuates hepatic damage and mitochondrial dysfunction in alcohol-associated steatohepatitis by regulating MDMX/PPARα-mediated ferroptosis. J Ethnopharmacol 2023; 307:116227. [PMID: 36739928 DOI: 10.1016/j.jep.2023.116227] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/15/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Verbenalin is a major compound in Verbena officinalis L. Verbena officinalis L was first recorded in the 'Supplementary Records of Famous Physicians.' Verbenalin (VE) is its active constituent and has been found to have many biological effects, including anti-obesity, anti-inflammatory, and antioxidant activities, removing jaundice, and treating malaria. It could treat lump accumulation, dysmenorrhea, throat obstruction, edema, jaundice, and malaria. Palmitic acid (PA), oleic acid (OA), ethanol, and acetaminophen liver injuries have been proven to benefit from verbenalin. AIM OF THE STUDY To study the effects of verbenalin on the prevention of alcoholic steatohepatitis (ASH) through the regulation of oxidative stress and mitochondrial dysfunction by regulating MDMX (Murine double minute X)/PPARα (Peroxisome proliferator-activated receptor alpha)-mediated ferroptosis. MATERIAL AND METHODS C57BL/6 mice treated with alcohol followed by the Gao-Binge protocol were administered verbenalin by gavage simultaneously. The mitochondrial mass and morphology were visualized using TEM. AML-12 cells were stimulated with ethanol to mimic ASH in vitro. Western blotting, co-immunoprecipitation, and kit determination were simultaneously performed. The target protein of verbenalin was identified by molecular docking, and cellular thermal shift assay (CETSA) further confirmed its interactions. RESULTS Verbenalin alleviates oxidative stress and ferroptosis in alcohol-associated steatohepatitis. To elucidate the molecular mechanism by which verbenalin inhibits abnormal mitochondrial dysfunction, molecular docking was performed, and MDMX was identified as the target protein of verbenalin. CETSA assays revealed a specific interaction between MDMX and verbenalin. Co-immunoprecipitation demonstrated that PPARα played a critical role in promoting the ability of MDMX to affect ferroptosis. Verbenalin regulates MDMX/PPARα-mediated ferroptosis in AML-12 cells. CONCLUSION Verbenalin regulates ferroptosis and highlights the therapeutic potential of verbenalin and ferroptosis inhibition in reducing alcoholic steatohepatitis.
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Affiliation(s)
- Jiahui Dong
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Changlin Du
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Chuanting Xu
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Qi Wang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Zhonghao Wang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Qian Zhu
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Xiongwen Lv
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Center of Traditional Chinese Medicine Formula Granule, Anhui Medical University, China
| | - Lei Zhang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Center of Traditional Chinese Medicine Formula Granule, Anhui Medical University, China
| | - Jun Li
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Cheng Huang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Hua Wang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230036, China.
| | - Taotao Ma
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Center of Traditional Chinese Medicine Formula Granule, Anhui Medical University, China.
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Yao P, Zhang Z, Liu H, Jiang P, Li W, Du W. p53 protects against alcoholic fatty liver disease via ALDH2 inhibition. EMBO J 2023; 42:e112304. [PMID: 36825429 PMCID: PMC10106987 DOI: 10.15252/embj.2022112304] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 01/31/2023] [Accepted: 02/07/2023] [Indexed: 02/25/2023] Open
Abstract
The tumor suppressor p53 is critical for tumor suppression, but the regulatory role of p53 in alcohol-induced fatty liver remains unclear. Here, we show a role for p53 in regulating ethanol metabolism via acetaldehyde dehydrogenase 2 (ALDH2), a key enzyme responsible for the oxidization of alcohol. By repressing ethanol oxidization, p53 suppresses intracellular levels of acetyl-CoA and histone acetylation, leading to the inhibition of the stearoyl-CoA desaturase-1 (SCD1) gene expression. Mechanistically, p53 directly binds to ALDH2 and prevents the formation of its active tetramer and indirectly limits the production of pyruvate that promotes the activity of ALDH2. Notably, p53-deficient mice exhibit increased lipid accumulation, which can be reversed by ALDH2 depletion. Moreover, liver-specific knockdown of SCD1 alleviates ethanol-induced hepatic steatosis caused by p53 loss. By contrast, overexpression of SCD1 in liver promotes ethanol-induced fatty liver development in wild-type mice, while it has a mild effect on p53-/- or ALDH2-/- mice. Overall, our findings reveal a previously unrecognized function of p53 in alcohol-induced fatty liver and uncover pyruvate as a natural regulator of ALDH2.
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Affiliation(s)
- Pengbo Yao
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Department of Cell Biology, School of Basic Medicine Peking Union Medical CollegeInstitute of Basic Medical Sciences Chinese Academy of Medical SciencesBeijingChina
- School of Life SciencesTsinghua UniversityBeijingChina
| | - Zhenxi Zhang
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Department of Cell Biology, School of Basic Medicine Peking Union Medical CollegeInstitute of Basic Medical Sciences Chinese Academy of Medical SciencesBeijingChina
| | - Hongchao Liu
- Department of Laboratory MedicinePeking University Third HospitalBeijingChina
| | - Peng Jiang
- School of Life SciencesTsinghua UniversityBeijingChina
| | - Wei Li
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Department of Cell Biology, School of Basic Medicine Peking Union Medical CollegeInstitute of Basic Medical Sciences Chinese Academy of Medical SciencesBeijingChina
| | - Wenjing Du
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Department of Cell Biology, School of Basic Medicine Peking Union Medical CollegeInstitute of Basic Medical Sciences Chinese Academy of Medical SciencesBeijingChina
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Iturrospe E, Robeyns R, da Silva KM, van de Lavoir M, Boeckmans J, Vanhaecke T, van Nuijs ALN, Covaci A. Metabolic signature of HepaRG cells exposed to ethanol and tumor necrosis factor alpha to study alcoholic steatohepatitis by LC-MS-based untargeted metabolomics. Arch Toxicol 2023; 97:1335-1353. [PMID: 36826472 DOI: 10.1007/s00204-023-03470-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 12/19/2022] [Accepted: 02/16/2023] [Indexed: 02/25/2023]
Abstract
Despite the high prevalence of alcoholic liver disease, its identification and characterization remain poor, especially in early stages such as alcoholic fatty liver disease and alcoholic steatohepatitis. This latter implies diagnostic difficulties, few therapeutic options and unclear mechanisms of action. To elucidate the metabolic alterations and pinpoint affected biochemical pathways, alcoholic steatohepatitis was simulated in vitro by exposing HepaRG cells to ethanol (IC10, 368 mM) and tumor necrosis factor alpha (TNF-α, 50 ng/mL) for 24 h. This combined exposure was compared to solely ethanol-exposed as well as -nonexposed cells. Four different metabolomics platforms were used combining liquid chromatography, high-resolution mass spectrometry and drift tube ion mobility to elucidate both intracellular and extracellular metabolic alterations. Some of the key findings include the influence of TNF-α in the upregulation of hepatic triglycerides and the downregulation of hepatic phosphatidylethanolamines and phosphatidylcholines. S-Adenosylmethionine showed to play a central role in the progression of alcoholic steatohepatitis. In addition, fatty acyl esters of hydroxy fatty acid (FAHFA)-containing triglycerides were detected for the first time in human hepatocytes and their alterations showed a potentially important role during the progression of alcoholic steatohepatitis. Ethoxylated phosphorylcholine was identified as a potential new biomarker of ethanol exposure.
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Affiliation(s)
- Elias Iturrospe
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium.
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Jette, Belgium.
| | - Rani Robeyns
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
| | | | - Maria van de Lavoir
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
| | - Joost Boeckmans
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Jette, Belgium
| | - Tamara Vanhaecke
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Jette, Belgium
| | | | - Adrian Covaci
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium.
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Wu Y, Huang C, Shi T, Li J. Deficiency of NLR family member NLRC5 alleviates alcohol induced hepatic injury and steatosis by enhancing autophagy of hepatocytes. Toxicol Appl Pharmacol 2023; 461:116406. [PMID: 36708882 DOI: 10.1016/j.taap.2023.116406] [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: 12/09/2022] [Revised: 01/14/2023] [Accepted: 01/23/2023] [Indexed: 01/27/2023]
Abstract
Steatosis is regarded as an early response of the liver to excessive alcohol consumption, which ultimately results in alcoholic liver disease (ALD). Hepatocytes are the primary drivers of the pathological process known as hepatic damage and steatosis, which is characterized by significant fat accumulation and an abundance of fat vacuoles. NLRs, a family member of pattern recognition receptors, have recently been found to be crucial in liver disorders. In this study, we examined the possible impact of NLRC5, the largest NLR family member, on alcohol-induced fatty liver development using a gene knock-out mouse model. The mouse liver was severely damaged and developed steatosis as a result of chronic and excessive ethanol use, and this damage was prevented by the lack of NLRC5. Additionally, NLRC5 deletion reversed ethanol's ability to increase the serum concentrations of TG, T-CHO, ALT, and AST. Absence of NLRC5 reduced ethanol-stimulated aberrant expression of the vital regulators of lipid synthesis and metabolism, SREBP-1c, FAS and PPAR-α. Furthermore, loss- and gain-of-function research indicated that NLRC5 might affect the autophagy pathway in alcohol-induced hepatic steatosis progression. The functional role of NLRC5 in ALD is obviously impacted by the autophagy inducer rapamycin as well as the autophagy inhibitor 3-MA. Our research showed that NLRC5 was involved in ethanol-induced injury and steatosis of the liver, and may be considered a suitable therapeutic target for treating ALD.
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Affiliation(s)
- Yuting Wu
- Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, PR China
| | - Cheng Huang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Tianlu Shi
- Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, PR China
| | - Jun Li
- School of Pharmacy, Anhui Medical University, Hefei 230032, China.
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13
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Dukić M, Radonjić T, Jovanović I, Zdravković M, Todorović Z, Kraišnik N, Aranđelović B, Mandić O, Popadić V, Nikolić N, Klašnja S, Manojlović A, Divac A, Gačić J, Brajković M, Oprić S, Popović M, Branković M. Alcohol, Inflammation, and Microbiota in Alcoholic Liver Disease. Int J Mol Sci 2023; 24:ijms24043735. [PMID: 36835145 PMCID: PMC9966185 DOI: 10.3390/ijms24043735] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 02/17/2023] Open
Abstract
Alcoholic liver disease (ALD) is a consequence of excessive alcohol use. According to many studies, alcohol represents a significant socioeconomic and health risk factor in today's population. According to data from the World Health Organization, there are about 75 million people who have alcohol disorders, and it is well known that its use leads to serious health problems. ALD is a multimodality spectrum that includes alcoholic fatty liver disease (AFL) and alcoholic steatohepatitis (ASH), consequently leading to liver fibrosis and cirrhosis. In addition, the rapid progression of alcoholic liver disease can lead to alcoholic hepatitis (AH). Alcohol metabolism produces toxic metabolites that lead to tissue and organ damage through an inflammatory cascade that includes numerous cytokines, chemokines, and reactive oxygen species (ROS). In the process of inflammation, mediators are cells of the immune system, but also resident cells of the liver, such as hepatocytes, hepatic stellate cells, and Kupffer cells. These cells are activated by exogenous and endogenous antigens, which are called pathogen and damage-associated molecular patterns (PAMPs, DAMPs). Both are recognized by Toll-like receptors (TLRs), which activation triggers the inflammatory pathways. It has been proven that intestinal dysbiosis and disturbed integrity of the intestinal barrier perform a role in the promotion of inflammatory liver damage. These phenomena are also found in chronic excessive use of alcohol. The intestinal microbiota has an important role in maintaining the homeostasis of the organism, and its role in the treatment of ALD has been widely investigated. Prebiotics, probiotics, postbiotics, and symbiotics represent therapeutic interventions that can have a significant effect on the prevention and treatment of ALD.
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Affiliation(s)
- Marija Dukić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Tijana Radonjić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Igor Jovanović
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Marija Zdravković
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Zoran Todorović
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Nemanja Kraišnik
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Bojana Aranđelović
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Olga Mandić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Višeslav Popadić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Novica Nikolić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Slobodan Klašnja
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Andrea Manojlović
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Anica Divac
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Jasna Gačić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Milica Brajković
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Svetlana Oprić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Maja Popović
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
| | - Marija Branković
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Correspondence: or
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You Y, Liu C, Liu T, Tian M, Wu N, Yu Z, Zhao F, Qi J, Zhu Q. FNDC3B protects steatosis and ferroptosis via the AMPK pathway in alcoholic fatty liver disease. Free Radic Biol Med 2022; 193:808-819. [PMID: 36336231 DOI: 10.1016/j.freeradbiomed.2022.10.322] [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: 09/28/2022] [Revised: 10/27/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Alcoholic liver disease (ALD) is a leading cause of chronic liver disease worldwide with limited therapeutic options. The role of fibronectin type III domain-containing protein 3B (FNDC3B), an important regulator of metabolism, in ALD, and the underlying mechanism as well as its potential implication in ALD therapeutic strategies remain unknown. METHODS Hepatocyte-specific FNDC3B knockdown or control C57BL/6 N mice received a Lieber-DeCarli diet for four weeks, followed by oral gavage (chronic-binge). Primary mouse hepatocytes and cell lines were used for in vitro studies. Liver injury, hepatic steatosis, and lipid peroxidation were assessed. RESULTS In cultured cells and mouse livers, alcohol exposure increased FNDC3B expression. Hepatocyte-specific FNDC3B deletion aggravated alcohol-induced liver steatosis via AMP-activated protein kinase (AMPK) inhibition. In vitro, FNDC3B expression was negatively regulated by miR-192-5p. Furthermore, FNDC3B deletion significantly exacerbated ethanol-mediated lipid peroxidation. The RNA sequence assay revealed a connection between FNDC3B and ferroptosis, which was verified by the administration of the ferroptosis inhibitor ferrostatin-1 (Fer-1). Additionally, FNDC3B inhibition-mediated AMPK inactivation downregulated transferrin expression, which was associated with marked iron overload and ferroptosis. CONCLUSIONS This study elucidated the critical role of FNDC3B in preventing hepatic steatosis and ferroptosis in response to chronic alcohol consumption. Our findings indicate that FNDC3B is a potential therapeutic target for ALD.
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Affiliation(s)
- Yajing You
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China
| | - Chenxi Liu
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China; Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Tiantian Liu
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China
| | - Miaomiao Tian
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Nijin Wu
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Zhen Yu
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Fenglin Zhao
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China
| | - Jianni Qi
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
| | - Qiang Zhu
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China; Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China; The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830000, Xinjiang, China.
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Wang C, Huang XL, Mu YM, Li YS, He YM, Tang HB. Synergistic effects of trans-p-coumaric acid isolated from the ethanol extract of Gynura procumbens in promoting intestinal absorption of chlorogenic acid and reversing alcoholic fatty liver disease. J Ethnopharmacol 2022; 295:115407. [PMID: 35640740 DOI: 10.1016/j.jep.2022.115407] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 05/18/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Our previous studies found that the ethanol extract of Gynura procumbens (EEGS) reduced hepatic steatosis in alcoholic fatty liver disease (AFLD). AIM OF THE STUDY To explore the active ingredients from EEGS and their relevant mechanism of action in alleviating alcoholic liver injuries. AIM OF THE STUDY To explore the active ingredients from EEGS and their intestinal absorption characteristics as an approach for understanding mechanism of action in alleviating alcoholic liver injuries. MATERIALS AND METHODS Monitored by high-performance liquid chromatography (HPLC) and thin-layer chromatography (TLC), chemical constituents from the prepared EEGS were isolated by means of solvent extraction, repeated column chromatography, preparative HPLC and other methods, and their structures were identified based on spectroscopic methods. The in vivo intestinal absorption rate of chlorogenic acid (CA), the active component of the EEGS, both in a single form and in the EEGS were monitored by the single-pass intestinal perfusion (SPIP) method in rats. The protective effect of EEGS and its active components on alcoholic liver injuries was evaluated in the alcoholic liver injury model of C57BL/6J male mice induced by Lieber-DeCarli alcohol liquid feed. RESULTS Three noncaffeoyl quinic acid components were isolated and identified from the EEGS, namely, 3-trans-p-coumaroyl quinic acid (0.9%), 3-cis-p-coumaroyl quinic acid (2.7%), and trans-p-coumaric acid (0.6%). In vivo intestinal absorption of CA decreased with the increase of pH value of perfusion solution in the range of 5.5-7.8. The maximum absorption percentage of CA alone was 6.7 ± 2.4%, while the maximum absorption percentage of CA in the EEGS was 16.0 ± 2.2%, which was 2.4 times higher than that of CA alone. The results of animal experiments showed that the degree of fatty liver of mice treated with EEGS was significantly lower than that of the CA, trans-p-coumaric acid, and the combination group of CA and trans-p-coumaric acid alone. CONCLUSION The above results indicated that trans-p-coumaric acid isolated from the dried stems of Gynura procumbens assisted CA being absorbed into the body and worked together with CA to improve the function of liver lipid metabolism, reduce hepatic lipid accumulation in a mouse model of AFLD and effectively counteract alcohol-induced fatty liver disease.
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Affiliation(s)
- Cong Wang
- Lab of Hepatopharmacology and Ethnopharmacology, School of Pharmaceutical Sciences, South-central Minzu University, No. 182, Minyuan Road, Wuhan, 430074, China.
| | - Xia-Ling Huang
- Lab of Hepatopharmacology and Ethnopharmacology, School of Pharmaceutical Sciences, South-central Minzu University, No. 182, Minyuan Road, Wuhan, 430074, China.
| | - Yun-Mei Mu
- Lab of Hepatopharmacology and Ethnopharmacology, School of Pharmaceutical Sciences, South-central Minzu University, No. 182, Minyuan Road, Wuhan, 430074, China.
| | - Yu-Sang Li
- Lab of Hepatopharmacology and Ethnopharmacology, School of Pharmaceutical Sciences, South-central Minzu University, No. 182, Minyuan Road, Wuhan, 430074, China.
| | - Yu-Min He
- Medical College of China Three Gorges University, Yichang, 443002, China.
| | - He-Bin Tang
- Lab of Hepatopharmacology and Ethnopharmacology, School of Pharmaceutical Sciences, South-central Minzu University, No. 182, Minyuan Road, Wuhan, 430074, China.
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Zhao H, Kong L, Shao M, Liu J, Sun C, Li C, Wang Y, Chai X, Wang Y, Zhang Y, Li X. Protective effect of flavonoids extract of Hippophae rhamnoides L. on alcoholic fatty liver disease through regulating intestinal flora and inhibiting TAK1/p38MAPK/p65NF-κB pathway. J Ethnopharmacol 2022; 292:115225. [PMID: 35341932 DOI: 10.1016/j.jep.2022.115225] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 03/17/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The therapeutic properties of Hippophae rhamnoides L. were already known in ancient Greece as well as in Tibetan and Mongolian medicine. Modern studies have indicated that Hippophae rhamnoides L. fermentation liquid protected against alcoholic fatty liver disease (AFLD). However, the underlying mechanism of Hippophae rhamnoides L. flavonoids extract (HLF) treating AFLD remains elusive. AIM OF THE STUDY This study aimed to investigate the hepatoprotective effect of HLF in mice with AFLD and the interaction between AFLD and gut microbiota. MATERIALS AND METHODS Chemical constituents of HLF were analyzed by Liquid Chromatography-Ion Trap-ESI-Mass Spectrometry. The Hepatoprotective effect of HLF was evaluated in mice with AFLD induced by alcohol (six groups, n = 10) daily at doses of 0.1, 0.2, and 0.4 g/kg for 30 consecutive days. At the end of experiment, mice were sacrificed and the liver, serum and feces were harvested for analysis. The liver histological changes were observed by H&E staining and oil red O staining. Moreover, the alterations of fecal microflora were detected by 16S rRNA gene sequencing. The inflammatory related genes were determined by qRT-PCR and western blotting respectively. RESULTS The results showed that the oral administration of HLF remarkably alleviated hepatic lipid accumulation by decreasing the levels of ALT, AST, TG and TC. The levels of TNF-α, TGF-β, and IL-6 were also reduced after treatment with HLF. Meanwhile, the protein and mRNA expression of NF-kB p65, MAPK p38 and TAK-1 in the liver of mice with AFLD were all reduced by HLF compared with model group. Furthermore, the 16S rRNA gene sequencing analysis demonstrated that HLF treatment can help restore the imbalance of intestinal microbial ecosystem and reverse the changes in Fimicutes/Bacterodietes, Clostridiales, Lachnospiraceae, S24-7, and Prevotella in mice with AFLD. CONCLUSION HLF can effectively ameliorate liver injury in mice with AFLD, and regulate the composition of gut microbiota. Its regulatory mechanism may be related to TAK1/p38MAPK/p65NF-κB pathway. This study may provide novel insights into the mechanism of HLF on AFLD and a basis for promising clinical usage.
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Affiliation(s)
- Hong Zhao
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China
| | - Lingzhou Kong
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China
| | - Mengting Shao
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China
| | - Jiayue Liu
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China
| | - Changhai Sun
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China
| | - Changxu Li
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China
| | - Yanyan Wang
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China
| | - Xue Chai
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China
| | - Yuliang Wang
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China
| | - Yu Zhang
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China
| | - Xiaoliang Li
- College of Pharmacy, Jiamusi University, Jiamusi, 154007, Heilongjiang, PR China; Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, PR China.
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17
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Mostofa MG, Tran M, Gilling S, Lee G, Fraher O, Jin L, Kang H, Park YK, Lee JY, Wang L, Shin DJ. MicroRNA-200c coordinates HNF1 homeobox B and apolipoprotein O functions to modulate lipid homeostasis in alcoholic fatty liver disease. J Biol Chem 2022; 298:101966. [PMID: 35460694 PMCID: PMC9127369 DOI: 10.1016/j.jbc.2022.101966] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 04/07/2022] [Accepted: 04/11/2022] [Indexed: 02/04/2023] Open
Abstract
Hepatic steatosis is an initial manifestation of alcoholic liver disease. An imbalance of hepatic lipid processes including fatty acid uptake, esterification, oxidation, and triglyceride secretion leads to alcoholic fatty liver (AFL). However, the precise molecular mechanisms underlying the pathogenesis of AFL remain elusive. Here, we show that mice deficient in microRNAs (miRs)-141 and -200c display resistance to the development of AFL. We found that miR-200c directly targets HNF1 homeobox B (Hnf1b), a transcriptional activator for microsomal triglyceride transfer protein (Mttp), as well as apolipoprotein O (ApoO), an integral component of the mitochondrial contact site and cristae organizing system complex. We show that expression of these miRs is significantly induced by chronic ethanol exposure, which is accompanied by reduced HNF1B and APOO levels. Furthermore, miR-141/200c deficiency normalizes ethanol-mediated impairment of triglyceride secretion, which can be attributed to the restored levels of HNF1B and MTTP, as well as phosphatidylcholine abundance. Moreover, we demonstrate that miR-141/200c deficiency restores ethanol-mediated inhibition of APOO expression and mitochondrial dysfunction, improving mitochondrial antioxidant defense capacity and fatty acid oxidation. Taken together, these results suggest that miR-200c contributes to the modulation of lipid homeostasis in AFL disease by cooperatively regulating Hnf1b and ApoO functions.
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Affiliation(s)
- Md Golam Mostofa
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut, USA
| | - Melanie Tran
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut, USA
| | - Shaynian Gilling
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut, USA
| | - Grace Lee
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut, USA
| | - Ondine Fraher
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut, USA
| | - Lei Jin
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut, USA
| | - Hyunju Kang
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut, USA
| | - Young-Ki Park
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut, USA
| | - Ji-Young Lee
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut, USA
| | - Li Wang
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut, USA
| | - Dong-Ju Shin
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut, USA.
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18
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Wang W, Zhong GZ, Long KB, Liu Y, Liu YQ, Xu AL. Silencing miR-181b-5p upregulates PIAS1 to repress oxidative stress and inflammatory response in rats with alcoholic fatty liver disease through inhibiting PRMT1. Int Immunopharmacol 2021; 101:108151. [PMID: 34836796 DOI: 10.1016/j.intimp.2021.108151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/30/2021] [Revised: 09/01/2021] [Accepted: 09/08/2021] [Indexed: 02/08/2023]
Abstract
OBJECTIVE This study aimed to probe the function of microRNA-181b-5p (miR-181b-5p)/protein inhibitor of activated STAT1 (PIAS1)/protein arginine methyltransferase 1 (PRMT1) axis in the progression of alcoholic fatty liver disease (AFLD). METHODS A rat model of AFLD was established and treated with altered miR-181b-5p, PIAS1 or PRMT1 expression constructs to identify their effects on liver function, serum inflammation, liver tissue oxidative stress, hepatocyte apoptosis and pathological changes of liver tissue in rats using a series of assays. miR-181b-5p, PIAS1 and PRMT1 levels were detected, and the targeting relationship between miR-181b-5p and PIAS1 was confirmed. RESULTS MiR-181b-5p and PRMT1 were elevated while PIAS1 was reduced in AFLD rat liver tissues, miR-181b-5p inhibition, PIAS1 overexpression or PRMT1 inhibition improved liver function, attenuated inflammation, oxidative stress, pathological changes and hepatocyte apoptosis in AFLD rat liver tissues. The impacts of miR-181b-5p inhibition on AFLD rats were reversed by PIAS1 silencing. PIAS1 was confirmed as a target gene of miR-181b-5p, and miR-181b-5p regulated PRMT1 expression through binding to PIAS1. CONCLUSION Inhibiting miR-181b-5p can promote the expression of PIAS1, thereby inhibiting PRMT1 and ultimately improving AFLD.
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Affiliation(s)
- Wei Wang
- Gastroenterology Department, Hunan Aerospace Hospital, Changsha 410205, Hunan, China
| | - Guan-Zhen Zhong
- Gastroenterology Department, Hunan Aerospace Hospital, Changsha 410205, Hunan, China
| | - Kai-Bing Long
- Gastroenterology Department, Hunan Aerospace Hospital, Changsha 410205, Hunan, China
| | - Yang Liu
- Gastroenterology Department, Hunan Aerospace Hospital, Changsha 410205, Hunan, China
| | - Ya-Qian Liu
- Gastroenterology Department, Hunan Aerospace Hospital, Changsha 410205, Hunan, China
| | - Ai-Lei Xu
- Gastroenterology Department, Hunan Aerospace Hospital, Changsha 410205, Hunan, China.
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Hao L, Zhong W, Dong H, Guo W, Sun X, Zhang W, Yue R, Li T, Griffiths A, Ahmadi AR, Sun Z, Song Z, Zhou Z. ATF4 activation promotes hepatic mitochondrial dysfunction by repressing NRF1-TFAM signalling in alcoholic steatohepatitis. Gut 2021; 70:1933-1945. [PMID: 33177163 PMCID: PMC8110597 DOI: 10.1136/gutjnl-2020-321548] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 10/20/2020] [Accepted: 10/21/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Mitochondrial dysfunction plays a dominant role in the pathogenesis of alcoholic liver disease (ALD); however, the underlying mechanisms remain to be fully understood. We previously found that hepatic activating transcription factor 4 (ATF4) activation was associated with mitochondrial dysfunction in ALD. This study aimed to investigate the function and mechanism of ATF4 in alcohol-induced hepatic mitochondrial dysfunction. DESIGN ATF4 activation was detected in the livers of patients with severe alcoholic hepatitis (AH). The role of ATF4 and mitochondrial transcription factor A (TFAM) in alcohol-induced liver damage was determined in hepatocyte-specific ATF4 knockout mice and liver-specific TFAM overexpression mice, respectively. RESULTS Hepatic PERK-eIF2α-ATF4 ER stress signalling was upregulated in patients with AH. Hepatocyte-specific ablation of ATF4 in mice ameliorated alcohol-induced steatohepatitis. ATF4 ablation also attenuated alcohol-impaired mitochondrial biogenesis and respiratory function along with the restoration of TFAM. Cell studies confirmed that TFAM expression was negatively regulated by ATF4. TFAM silencing in hepatoma cells abrogated the protective effects of ATF4 knockdown on ethanol-mediated mitochondrial dysfunction and cell death. Moreover, hepatocyte-specific TFAM overexpression in mice attenuated alcohol-induced mitochondrial dysfunction and liver damage. Mechanistic studies revealed that ATF4 repressed the transcription activity of nuclear respiratory factor 1 (NRF1), a key regulator of TFAM, through binding to its promoter region. Clinical relevance among ATF4 activation, NRF1-TFAM pathway disruption and mitochondrial dysfunction was validated in the livers of patients with AH. CONCLUSION This study demonstrates that hepatic ATF4 plays a pathological role in alcohol-induced mitochondrial dysfunction and liver injury by disrupting the NRF1-TFAM pathway.
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Affiliation(s)
- Liuyi Hao
- Center for Translational Biomedical Research, UNCG, Kannapolis, North Carolina, USA
| | - Wei Zhong
- Center for Translational Biomedical Research, UNCG, Kannapolis, North Carolina, USA
- Department of Nutrition, UNCG, Greensboro, North Carolina, USA
| | - Haibo Dong
- Center for Translational Biomedical Research, UNCG, Kannapolis, North Carolina, USA
| | - Wei Guo
- Center for Translational Biomedical Research, UNCG, Kannapolis, North Carolina, USA
| | - Xinguo Sun
- Center for Translational Biomedical Research, UNCG, Kannapolis, North Carolina, USA
| | - Wenliang Zhang
- Center for Translational Biomedical Research, UNCG, Kannapolis, North Carolina, USA
| | - Ruichao Yue
- Center for Translational Biomedical Research, UNCG, Kannapolis, North Carolina, USA
| | - Tianjiao Li
- Center for Translational Biomedical Research, UNCG, Kannapolis, North Carolina, USA
| | | | - Ali Reza Ahmadi
- Department of Surgery, Johns Hopkins Medicine, Baltimore, Maryland, USA
| | - Zhaoli Sun
- Department of Surgery, Johns Hopkins Medicine, Baltimore, Maryland, USA
| | - Zhenyuan Song
- Department of Kinesiology and Nutrition, UIC, Chicago, Illinois, USA
| | - Zhanxiang Zhou
- Center for Translational Biomedical Research, UNCG, Kannapolis, North Carolina, USA
- Department of Nutrition, UNCG, Greensboro, North Carolina, USA
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20
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Arumugam MK, Chava S, Rasineni K, Paal MC, Donohue TM, Osna NA, Kharbanda KK. Elevated S-adenosylhomocysteine induces adipocyte dysfunction to promote alcohol-associated liver steatosis. Sci Rep 2021; 11:14693. [PMID: 34282217 PMCID: PMC8289835 DOI: 10.1038/s41598-021-94180-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 06/28/2021] [Indexed: 02/08/2023] Open
Abstract
It has been previously shown that chronic ethanol administration-induced increase in adipose tissue lipolysis and reduction in the secretion of protective adipokines collectively contribute to alcohol-associated liver disease (ALD) pathogenesis. Further studies have revealed that increased adipose S-adenosylhomocysteine (SAH) levels generate methylation defects that promote lipolysis. Here, we hypothesized that increased intracellular SAH alone causes additional related pathological changes in adipose tissue as seen with alcohol administration. To test this, we used 3-deazaadenosine (DZA), which selectively elevates intracellular SAH levels by blocking its hydrolysis. Fully differentiated 3T3-L1 adipocytes were treated in vitro for 48 h with DZA and analysed for lipolysis, adipokine release and differentiation status. DZA treatment enhanced adipocyte lipolysis, as judged by lower levels of intracellular triglycerides, reduced lipid droplet sizes and higher levels of glycerol and free fatty acids released into the culture medium. These findings coincided with activation of both adipose triglyceride lipase and hormone sensitive lipase. DZA treatment also significantly reduced adipocyte differentiation factors, impaired adiponectin and leptin secretion but increased release of pro-inflammatory cytokines, IL-6, TNF and MCP-1. Together, our results demonstrate that elevation of intracellular SAH alone by DZA treatment of 3T3-L1 adipocytes induces lipolysis and dysregulates adipokine secretion. Selective elevation of intracellular SAH by DZA treatment mimics ethanol's effects and induces adipose dysfunction. We conclude that alcohol-induced elevations in adipose SAH levels contribute to the pathogenesis and progression of ALD.
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Affiliation(s)
- Madan Kumar Arumugam
- Research Service (151), Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE, 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Srinivas Chava
- Research Service (151), Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE, 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Karuna Rasineni
- Research Service (151), Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE, 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Matthew C Paal
- Research Service (151), Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE, 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Terrence M Donohue
- Research Service (151), Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE, 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Natalia A Osna
- Research Service (151), Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE, 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Kusum K Kharbanda
- Research Service (151), Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE, 68105, USA.
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
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21
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Xu L, Zhang X, Xin Y, Ma J, Yang C, Zhang X, Hou G, Dong XC, Sun Z, Xiong X, Cao X. Depdc5 deficiency exacerbates alcohol-induced hepatic steatosis via suppression of PPARα pathway. Cell Death Dis 2021; 12:710. [PMID: 34267188 PMCID: PMC8282792 DOI: 10.1038/s41419-021-03980-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 12/16/2022]
Abstract
Alcohol-related liver disease (ALD), a condition caused by alcohol overconsumption, occurs in three stages of liver injury including steatosis, hepatitis, and cirrhosis. DEP domain-containing protein 5 (DEPDC5), a component of GAP activities towards Rags 1 (GATOR1) complex, is a repressor of amino acid-sensing branch of the mammalian target of rapamycin complex 1 (mTORC1) pathway. In the current study, we found that aberrant activation of mTORC1 was likely attributed to the reduction of DEPDC5 in the livers of ethanol-fed mice or ALD patients. To further define the in vivo role of DEPDC5 in ALD development, we generated Depdc5 hepatocyte-specific knockout mouse model (Depdc5-LKO) in which mTORC1 pathway was constitutively activated through loss of the inhibitory effect of GATOR1. Hepatic Depdc5 ablation leads to mild hepatomegaly and liver injury and protects against diet-induced liver steatosis. In contrast, ethanol-fed Depdc5-LKO mice developed severe hepatic steatosis and inflammation. Pharmacological intervention with Torin 1 suppressed mTORC1 activity and remarkably ameliorated ethanol-induced hepatic steatosis and inflammation in both control and Depdc5-LKO mice. The pathological effect of sustained mTORC1 activity in ALD may be attributed to the suppression of peroxisome proliferator activated receptor α (PPARα), the master regulator of fatty acid oxidation in hepatocytes, because fenofibrate (PPARα agonist) treatment reverses ethanol-induced liver steatosis and inflammation in Depdc5-LKO mice. These findings provide novel insights into the in vivo role of hepatic DEPDC5 in the development of ALD.
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Affiliation(s)
- Lin Xu
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China
- School of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Xinge Zhang
- School of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
- Xinxiang Key Laboratory of Metabolism and Integrative Physiology, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Yue Xin
- School of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
- Xinxiang Key Laboratory of Metabolism and Integrative Physiology, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Jie Ma
- Department of Human Anatomy & Histoembryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Chenyan Yang
- School of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
- Xinxiang Key Laboratory of Metabolism and Integrative Physiology, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Xi Zhang
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China
| | - Guoqing Hou
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China
| | - Xiaocheng Charlie Dong
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Zhaoli Sun
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Xiwen Xiong
- School of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China.
- Xinxiang Key Laboratory of Metabolism and Integrative Physiology, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China.
| | - Xuan Cao
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China.
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22
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Zhao L, Mehmood A, Yuan D, Usman M, Murtaza MA, Yaqoob S, Wang C. Protective Mechanism of Edible Food Plants against Alcoholic Liver Disease with Special Mention to Polyphenolic Compounds. Nutrients 2021; 13:nu13051612. [PMID: 34064981 PMCID: PMC8151346 DOI: 10.3390/nu13051612] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/06/2021] [Accepted: 05/08/2021] [Indexed: 12/13/2022] Open
Abstract
Alcoholic liver disease (ALD) is one type of liver disease, causing a global healthcare problem and mortality. The liver undergoes tissue damage by chronic alcohol consumption because it is the main site for metabolism of ethanol. Chronic alcohol exposure progresses from alcoholic fatty liver (AFL) to alcoholic steatohepatitis (ASH), which further lead to fibrosis, cirrhosis, and even hepatocellular cancer. Therapeutic interventions to combat ALD are very limited such as use of corticosteroids. However, these therapeutic drugs are not effective for long-term usage. Therefore, additional effective and safe therapies to cope with ALD are urgently needed. Previous studies confirmed that edible food plants and their bioactive compounds exert a protective effect against ALD. In this review article, we summarized the hepatoprotective potential of edible food plants and their bioactive compounds. The underlying mechanism for the prevention of ALD by edible food plants was as follows: anti-oxidation, anti-inflammation, lipid regulation, inhibition of apoptosis, gut microbiota composition modulation, and anti-fibrosis.
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Affiliation(s)
- Liang Zhao
- Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (L.Z.); (A.M.); (M.U.); (C.W.)
- Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Arshad Mehmood
- Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (L.Z.); (A.M.); (M.U.); (C.W.)
- Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Dongdong Yuan
- Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (L.Z.); (A.M.); (M.U.); (C.W.)
- Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
- Correspondence: ; Tel.: +86-10-6898-4547
| | - Muhammad Usman
- Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (L.Z.); (A.M.); (M.U.); (C.W.)
- Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Mian Anjum Murtaza
- Institute of Food Science and Nutrition, University of Sargodha, Sargodha 40100, Pakistan;
| | - Sanabil Yaqoob
- Department of Food Science and Technology, University of Central Punjab, Punjab 54590, Pakistan;
| | - Chengtao Wang
- Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; (L.Z.); (A.M.); (M.U.); (C.W.)
- Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
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23
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Zhang ZR, Yang ZG, Xu YM, Wang ZY, Wen J, Chen BH, Wang P, Wei W, Li Z, Dong WQ. Bioinformatics analysis of differentially expressed proteins in alcoholic fatty liver disease treated with recombinant human cytoglobin. Mol Med Rep 2021; 23:289. [PMID: 33649799 PMCID: PMC7930997 DOI: 10.3892/mmr.2021.11929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 06/26/2020] [Indexed: 11/06/2022] Open
Abstract
Cytoglobin (Cygb) is a globin molecule that is ubiquitously expressed in all tissues and has a protective role under oxidative stress. It has also been demonstrated to be effective in the treatment of alcoholic fatty liver disease (AFLD). In order to study the molecular mechanisms underlying its beneficial effects for the treatment of alcoholic liver, two‑dimensional electrophoresis and mass spectrometric analysis were performed on serum and liver tissues from an in vivo rat model of AFLD. A total of 26 differentially expressed proteins were identified in the serum and 20 differentially expressed proteins were identified in liver specimens. Using online bioinformatics tools, it was indicated that these differentially expressed proteins were primarily associated with pathways including binding and uptake of ligands by scavenger receptors, response to corticosteroid, plasma lipoprotein remodeling, regulation of complement cascade, hydrogen peroxide catabolic process, as well as response to nutrient and monosaccharide. The present results suggested that recombinant human Cygb exerts its role in the treatment of AFLD primarily through affecting nutrient metabolism, monocarboxylic acid biosynthesis, regulation of glutathione expression, plasma lipoprotein remodeling and removal of metabolic waste from the blood.
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Affiliation(s)
- Zi-Rong Zhang
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Zheng-Gen Yang
- Guangzhou Koncen BioScience Co., Ltd., Guangzhou, Guangdong 510530, P.R. China
| | - Yan-Mei Xu
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Zhe-Yan Wang
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Jian Wen
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Bo-Hong Chen
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Ping Wang
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Wei Wei
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Zhen Li
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Wen-Qi Dong
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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Zhang Y, Park J, Han SJ, Park I, Huu TN, Kim JS, Woo HA, Lee SR. The critical role of redox regulation of PTEN and peroxiredoxin III in alcoholic fatty liver. Free Radic Biol Med 2021; 162:141-148. [PMID: 33249138 DOI: 10.1016/j.freeradbiomed.2020.11.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 07/03/2020] [Revised: 11/03/2020] [Accepted: 11/19/2020] [Indexed: 01/29/2023]
Abstract
Hepatic steatosis and subsequent fatty liver disease are developed in response to alcohol consumption. Reactive oxygen species (ROS) are thought to play an important role in the alcoholic fatty liver disease (AFLD). However, the molecular targets of ROS and the underlying cellular mechanisms are unknown. Here, we investigate roles of peroxiredoxin III and redox regulation of phosphatase and tension homolog deleted on chromosome 10 (PTEN) in the alcoholic fatty liver. Alcohol-induced mitochondrial oxidative stress was found to contribute to reversible oxidation of PTEN, which results in Akt and MAPK hyperactivation with elevated levels of the lipogenesis regulators SREBP1c and PPARγ. Moreover, mitochondrial peroxiredoxin III was found to have antagonistic effects on lipogenesis via the redox regulation of PTEN by removing ROS, upon alcohol exposure. This study demonstrated that redox regulation of PTEN and peroxiredoxin III play crucial roles in the development of AFLD.
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Affiliation(s)
- Ying Zhang
- Department of Cell Biology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, 212013, China
| | - Jiyoung Park
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-750, South Korea
| | - Seong-Jeong Han
- COTDE Inc. 19-3, Ugakgol-gil, Susin-myeon, Cheonan-si, Chungcheongnam-do, 330-882, South Korea
| | - Iha Park
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju, 501-190, South Korea
| | - Thang Nguyen Huu
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju, 501-190, South Korea
| | - Jong-Suk Kim
- Department of Biochemistry, Institute of Medical Science, Chonbuk National University Medical School, Jeonju, 560-182, South Korea
| | - Hyun Ae Woo
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-750, South Korea.
| | - Seung-Rock Lee
- Department of Biochemistry, Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju, 501-190, South Korea.
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25
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Diesinger T, Buko V, Lautwein A, Dvorsky R, Belonovskaya E, Lukivskaya O, Naruta E, Kirko S, Andreev V, Buckert D, Bergler S, Renz C, Schneider E, Kuchenbauer F, Kumar M, Günes C, Büchele B, Simmet T, Müller-Enoch D, Wirth T, Haehner T. Drug targeting CYP2E1 for the treatment of early-stage alcoholic steatohepatitis. PLoS One 2020; 15:e0235990. [PMID: 32701948 PMCID: PMC7377376 DOI: 10.1371/journal.pone.0235990] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/25/2020] [Indexed: 02/07/2023] Open
Abstract
Background and aims Alcoholic steatohepatitis (ASH)—the inflammation of fatty liver—is caused by chronic alcohol consumption and represents one of the leading chronic liver diseases in Western Countries. ASH can lead to organ dysfunction or progress to hepatocellular carcinoma (HCC). Long-term alcohol abstinence reduces this probability and is the prerequisite for liver transplantation—the only effective therapy option at present. Elevated enzymatic activity of cytochrome P450 2E1 (CYP2E1) is known to be critically responsible for the development of ASH due to excessively high levels of reactive oxygen species (ROS) during metabolization of ethanol. Up to now, no rational drug discovery process was successfully initiated to target CYP2E1 for the treatment of ASH. Methods In this study, we applied a rational drug design concept to develop drug candidates (NCE) including preclinical studies. Results A new class of drug candidates was generated successfully. Two of the most promising small compounds named 12-Imidazolyl-1-dodecanol (abbr.: I-ol) and 1-Imidazolyldodecane (abbr.: I-an) were selected at the end of this process of drug discovery and developability. These new ω-imidazolyl-alkyl derivatives act as strong chimeric CYP2E1 inhibitors at a nanomolar range. They restore redox balance, reduce inflammation process as well as the fat content in the liver and rescue the physiological liver architecture of rats consuming continuously a high amount of alcohol. Conclusions Due to its oral application and therapeutic superiority over an off-label use of the hepatoprotector ursodeoxycholic acid (UDCA), this new class of inhibitors marks the first rational, pharmaceutical concept in long-term treatment of ASH.
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Affiliation(s)
- Torsten Diesinger
- Donauklinik Neu-Ulm, Abteilung für Innere Medizin, Neu-Ulm, Germany
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
- Department of Internal Medicine, Neu-Ulm Hospital, Neu-Ulm, Germany
- * E-mail:
| | - Vyacheslav Buko
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Substances, Grodno, Belarus
- Department of Biotechnology, University of Medical Sciences, Bialystok, Poland
| | - Alfred Lautwein
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
| | - Radovan Dvorsky
- Institut für Biochemie und Molekularbiologie II, Medizinische Fakultät der Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Elena Belonovskaya
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Substances, Grodno, Belarus
| | - Oksana Lukivskaya
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Substances, Grodno, Belarus
| | - Elena Naruta
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Substances, Grodno, Belarus
| | - Siarhei Kirko
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Substances, Grodno, Belarus
| | - Viktor Andreev
- Department of Medical Biology and Genetics, Grodno State Medical University, Grodno, Belarus
| | - Dominik Buckert
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
- Department of Internal Medicine II, University Hospital Ulm, Ulm, Germany
| | | | - Christian Renz
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
| | - Edith Schneider
- Department of Internal Medicine III, University Hospital Ulm, Ulm, Germany
| | - Florian Kuchenbauer
- Department of Internal Medicine III, University Hospital Ulm, Ulm, Germany
- University of British Columbia, Terry Fox Laboratory, Vancouver, Canada
| | - Mukesh Kumar
- Department of Urology, University Hospital Ulm, Ulm, Germany
| | - Cagatay Günes
- Department of Urology, University Hospital Ulm, Ulm, Germany
| | - Berthold Büchele
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, University Ulm, Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, University Ulm, Ulm, Germany
| | | | - Thomas Wirth
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
| | - Thomas Haehner
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
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Ibars M, Maier MT, Yulyaningsih E, Perez L, Cheang R, Vilhelmsson A, Louie SM, Wegner SA, Yuan X, Eltzschig HK, Hopf FW, Nomura DK, Koliwad SK, Xu AW. Neuronal modulation of hepatic lipid accumulation induced by bingelike drinking. Am J Physiol Endocrinol Metab 2020; 318:E655-E666. [PMID: 32045262 PMCID: PMC7272724 DOI: 10.1152/ajpendo.00218.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 01/27/2020] [Accepted: 01/31/2020] [Indexed: 12/20/2022]
Abstract
Excessive alcohol consumption, including binge drinking, is a common cause of fatty liver disease. Binge drinking rapidly induces hepatic steatosis, an early step in the pathogenesis of chronic liver injury. Despite its prevalence, the process by which excessive alcohol consumption promotes hepatic lipid accumulation remains unclear. Alcohol exerts potent effects on the brain, including hypothalamic neurons crucial for metabolic regulation. However, whether or not the brain plays a role in alcohol-induced hepatic steatosis is unknown. In the brain, alcohol increases extracellular levels of adenosine, a potent neuromodulator, and previous work implicates adenosine signaling as being important for the development of alcoholic fatty liver disease. Acute alcohol exposure also increases both the activity of agouti-related protein (AgRP)-expressing neurons and AgRP immunoreactivity. Here, we show that adenosine receptor A2B signaling in the brain modulates the extent of alcohol-induced fatty liver in mice and that both the AgRP neuropeptide and the sympathetic nervous system are indispensable for hepatic steatosis induced by bingelike alcohol consumption. Together, these results indicate that the brain plays an integral role in alcohol-induced hepatic lipid accumulation and that central adenosine signaling, hypothalamic AgRP, and the sympathetic nervous system are crucial mediators of this process.
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Affiliation(s)
- Maria Ibars
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Matthew T Maier
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Ernie Yulyaningsih
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Luz Perez
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Rachel Cheang
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Anna Vilhelmsson
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Sharon M Louie
- Departments of Chemistry, Molecular and Cell Biology, and Nutritional Sciences and Toxicology, University of California, Berkeley, California
| | - Scott A Wegner
- Department of Neurology, Department of Anatomy, University of California, San Francisco, California
| | - Xiaoyi Yuan
- Department of Anesthesiology, University of Texas Health Science Center at Houston, Houston, Texas
| | - Holger K Eltzschig
- Department of Anesthesiology, University of Texas Health Science Center at Houston, Houston, Texas
| | - Frederic W Hopf
- Department of Neurology, Department of Anatomy, University of California, San Francisco, California
| | - Daniel K Nomura
- Departments of Chemistry, Molecular and Cell Biology, and Nutritional Sciences and Toxicology, University of California, Berkeley, California
| | - Suneil K Koliwad
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
- Department of Medicine, Department of Anatomy, University of California, San Francisco, California
| | - Allison W Xu
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
- Department of Anatomy, University of California, San Francisco, California
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27
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Chen X, Zhang Z, Cui B, Jiang A, Tao H, Cheng S, Liu Y. Combination of Chronic Alcohol Consumption and High-Salt Intake Elicits Gut Microbial Alterations and Liver Steatosis in Mice. J Agric Food Chem 2020; 68:1750-1759. [PMID: 31971384 DOI: 10.1021/acs.jafc.9b07368] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Alcohol is a globally well-established cause of fatty liver disease (FLD). Increased salt consumption is associated with an increased prevalence of adipocyte hypertrophy and liver injury. In this study, high dietary salt potentiated chronic alcohol-induced hepatic damage. We explored the physiological mechanism of alcoholic FLD in the gastrointestinal tract. Male C57BL/6J mice (8-week-old) were fed a high-salt diet (HSD; 4% NaCl) with or without chronic ethanol (CE) for 1 month. The fecal microbiota, serum biochemical indices, intestinal permeability, level of liver damage, and liver mitochondria were evaluated. The HSD, CE, and their combination (HSDE) significantly changed the gut microbiota's structure, and the HSDE mice contained more probiotic species (e.g., Bifidobacterium and Lactobacillus). The serum aspartate aminotransferase, alanine aminotransferase, and alkaline phosphatase levels were increased, and the lipid was accumulated in the liver tissues in the CE, HSD, and HSDE groups, which indicated liver damage, especially in the HSDE group. The increased intestinal permeability and mitochondrial dysfunction in the liver cells caused greater injury in the HSDE group than in the other groups. Thus, consuming HSD with alcohol contributes to FLD development and progression.
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Affiliation(s)
- Xiao Chen
- College of Food Science , South China Agricultural University , Guangzhou 510642 , China
| | - Zheng Zhang
- State Key Laboratory of Biobased Material and Green Papermaking , Qilu University of Technology, Shandong Academy of Sciences , Jinan 250000 , China
| | - Bo Cui
- State Key Laboratory of Biobased Material and Green Papermaking , Qilu University of Technology, Shandong Academy of Sciences , Jinan 250000 , China
| | - Aimin Jiang
- College of Food Science , South China Agricultural University , Guangzhou 510642 , China
| | - Haiteng Tao
- State Key Laboratory of Biobased Material and Green Papermaking , Qilu University of Technology, Shandong Academy of Sciences , Jinan 250000 , China
| | | | - Yong Liu
- Yucheng Maternal and Child Health Hospital , Dezhou 251200 , China
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28
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Liu ZN, Jia WQ, Jiang T, Dai JW, Shuai C, Lv XW. Regulation of CD39 expression in ATP-P2Y2R-mediated alcoholic liver steatosis and inflammation. Int Immunopharmacol 2019; 77:105915. [PMID: 31639617 DOI: 10.1016/j.intimp.2019.105915] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 09/03/2019] [Accepted: 09/12/2019] [Indexed: 12/12/2022]
Abstract
Inflammation plays a central role in the progression of alcoholic liver disease. ATP-P2Y2R signaling and CD39 play an important role in various diseases, but little is known about their role in alcoholic liver steatosis and inflammation. As a transmembrane hydrolase, CD39 hydrolyzes ATP, while the mutual regulation of CD39 and ATP-P2Y2R in alcoholic steatohepatitis is poorly understood. Here, we found that the expression of ATP, P2Y2R, and CD39 is increased significantly both in the liver of alcohol-fed mice and alcohol-induced RAW264.7 cell lines. In this study, C57BL/6 mice were intrapretationally injected with P2Y2R inhibitor suramin from day 4 until day 10 during the induction of a chronic/binge drinking model. Pharmacological blockade of P2Y2R largely prevents liver damage, lipid accumulation, and inflammation, with concomitant down-expression of CD39 in liver. We found that the inhibition of P2Y2R in vitro reduces inflammation via down-expression of interleukin 6 (IL-6), interleukin-1β (IL-1β), and tumor necrosis factor-alpha (TNF-α), and the expression of CD39 was reduced, whereas the activation of P2Y2R showed an opposite effect. Silencing of CD39 promoted the expression of ATP and P2Y2R. These results indicate that CD39 attenuates alcohol-induced steatohepatitis by scavenging extracellular ATP to indirectly regulate the expression of P2Y2R. Interestingly, P2Y2R paradoxically boosts CD39 activity. Thus, blockade of the extracellular ATP-P2Y2R signalling represents a potential therapeutic approach against alcoholic liver disease, and CD39 is a potential therapeutic target.
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Affiliation(s)
- Zhen-Ni Liu
- The Key Laboratory of Major Autoimmune Diseases, Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Wen-Qian Jia
- The Key Laboratory of Major Autoimmune Diseases, Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Tao Jiang
- The Key Laboratory of Major Autoimmune Diseases, Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Jing-Wen Dai
- The Key Laboratory of Major Autoimmune Diseases, Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Chen Shuai
- The Key Laboratory of Major Autoimmune Diseases, Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Xiong-Wen Lv
- The Key Laboratory of Major Autoimmune Diseases, Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Institute for Liver Diseases of Anhui Medical University, Hefei, China.
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29
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Zhong F, Hu Z, Jiang K, Lei B, Wu Z, Yuan G, Luo H, Dong C, Tang B, Zheng C, Yang S, Zeng Y, Guo Z, Yu S, Su H, Zhang G, Qiu X, Tomlinson S, He S. Complement C3 activation regulates the production of tRNA-derived fragments Gly-tRFs and promotes alcohol-induced liver injury and steatosis. Cell Res 2019; 29:548-561. [PMID: 31076642 PMCID: PMC6796853 DOI: 10.1038/s41422-019-0175-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 04/12/2019] [Indexed: 12/23/2022] Open
Abstract
Complement is known to play a role in alcoholic fatty liver disease (AFLD), but the underlying mechanisms are poorly understood, thereby constraining the development of a rational approach for therapeutic intervention in the complement system. C3 deficiency has been shown to impart protective effects against ethanol-induced hepatic steatosis and inflammation. Here we demonstrate a protection effect in wild-type mice by treatment with CR2-Crry, a specific inhibitor of C3 activation. The expression of glycine transfer (t) RNA-derived fragments (Gly-tRFs) is upregulated in ethanol-fed mice and inhibition of Gly-tRFs in vivo decreases chronic ethanol feeding-induced hepatosteatosis without affecting inflammation. The expression of Gly-tRF was downregulated in C3-deficient or CR2-Crry-treated mice, but not in C5-deficient mice; Gly-tRF expression was restored by the C3 activation products C3a or Asp (C3a-des-Arg) via the regulation of CYP2E1. Transcriptome profiling of hepatic tissues showed that Gly-tRF inhibitors upregulate the expression of sirtuin1 (Sirt1) and subsequently affect downstream lipogenesis and β-oxidation pathways. Mechanistically, Gly-tRF interacts with AGO3 to downregulate Sirt1 expression via sequence complementarity in the 3' UTR. Notably, the expression levels of C3d, CYP2E1 and Gly-tRF are upregulated, whereas Sirt1 is decreased in AFLD patients compared to healthy controls. Collectively, our findings suggest that C3 activation products contribute to hepatosteatosis by regulating the expression of Gly-tRF. Complement inhibition at the C3 activation step and treatment with Gly-tRF inhibitors may be potential and precise therapeutic approaches for AFLD.
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Affiliation(s)
- Fudi Zhong
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Zhigao Hu
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
- Laboratory of Liver Injury and Repair, Nanning, Guangxi, China
| | - Keqing Jiang
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Biao Lei
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Zhan Wu
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Guandou Yuan
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Hongliang Luo
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Chunqiang Dong
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Bo Tang
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Chaowen Zheng
- Laboratory of Liver Injury and Repair, Nanning, Guangxi, China
| | - Shuai Yang
- Laboratory of Liver Injury and Repair, Nanning, Guangxi, China
| | - Yonglian Zeng
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Zhenya Guo
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Shuiping Yu
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Huizhao Su
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Guo Zhang
- Department of Gastroenterology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Xiaoqiang Qiu
- Laboratory of Liver Injury and Repair, Nanning, Guangxi, China
| | - Stephen Tomlinson
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Songqing He
- Division of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China.
- Laboratory of Liver Injury and Repair, Nanning, Guangxi, China.
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30
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Fonseca TL, Fernandes GW, Bocco BMLC, Keshavarzian A, Jakate S, Donohue TM, Gereben B, Bianco AC. Hepatic Inactivation of the Type 2 Deiodinase Confers Resistance to Alcoholic Liver Steatosis. Alcohol Clin Exp Res 2019; 43:1376-1383. [PMID: 30908637 PMCID: PMC6602874 DOI: 10.1111/acer.14027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 03/15/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND A mouse with hepatocyte-specific deiodinase type II inactivation (Alb-D2KO) is resistant to diet-induced obesity, hepatic steatosis, and hypertriglyceridemia due to perinatal epigenetic modifications in the liver. This phenotype is linked to low levels of Zfp125, a hepatic transcriptional repressor that promotes liver steatosis by inhibiting genes involved in packaging and secretion of very-low-density lipoprotein. METHODS Here, we used chronic and binge ethanol (EtOH) in mice to cause liver steatosis. RESULTS The EtOH treatment causes a 2.3-fold increase in hepatic triglyceride content; Zfp125 levels were approximately 50% higher in these animals. In contrast, Alb-D2KO mice did not develop EtOH-induced liver steatosis. They also failed to elevate Zfp125 to the same levels, despite being on the EtOH-containing diet for the same period of time. Their phenotype was associated with 1.3- to 2.9-fold up-regulation of hepatic genes involved in lipid transport and export that are normally repressed by Zfp125, that is, Mttp, Abca1, Ldlr, Apoc1, Apoc3, Apoe, Apoh, and Azgp1. Furthermore, genes involved in the EtOH metabolic pathway, that is, Aldh2 and Acss2, were also 1.6- to 3.1-fold up-regulated in Alb-D2KO EtOH mice compared with control animals kept on EtOH. CONCLUSIONS EtOH consumption elevates expression of Zfp125. Alb-D2KO animals, which have lower levels of Zfp125, are much less susceptible to EtOH-induced liver steatosis.
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Affiliation(s)
- Tatiana L. Fonseca
- Section of Endocrinology, Diabetes & Metabolism, University of Chicago, Chicago, IL
| | - Gustavo W. Fernandes
- Section of Endocrinology, Diabetes & Metabolism, University of Chicago, Chicago, IL
| | | | - Ali Keshavarzian
- Division of Digestive Diseases and Nutrition, Rush University, Chicago IL
| | | | - Terrence M. Donohue
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha NE
| | - Balázs Gereben
- Department of Endocrine Neurobiology, Institute of Experimental Medicine, Hungarian Academy of Sciences, Budapest, Hungary
| | - Antonio C. Bianco
- Section of Endocrinology, Diabetes & Metabolism, University of Chicago, Chicago, IL
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Fujisawa K, Takami T, Nagatomo T, Fukui Y, Hoshida H, Saeki I, Matsumoto T, Hidaka I, Yamamoto N, Sakaida I. Usefulness of adult medaka fish as a model for the evaluation of alcoholic fatty liver. Alcohol 2019; 77:147-154. [PMID: 30660600 DOI: 10.1016/j.alcohol.2019.01.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 06/12/2018] [Revised: 01/04/2019] [Accepted: 01/10/2019] [Indexed: 12/12/2022]
Abstract
Alcohol has long been acknowledged to be one of the main causes of hepatic disorders. In recent years, with the advancements in antiviral therapies, the relative proportion that alcoholic liver disease contributes among liver diseases has increased, necessitating the establishment of a useful model for the elucidation of the mechanism of its development. In this study, we developed a model of alcoholic liver disease using medaka, a small-sized fish known for its usefulness as a model organism. After rearing medaka in water containing ethanol for 2 months, fat deposition was observed in their livers. In addition, on the basis of the metabolomic analysis of the liver to evaluate metabolic changes resulting from ethanol administration, the increases in ethanol metabolites and changes in lipid metabolism were assessed. As minimally invasive evaluation methods, transparent medaka enabled the macroscopic evaluation of the progression of alcoholic fatty liver, while ultrasonography enabled the quantification of the fatty deposition of the liver. Furthermore, intestinal microbiota, the composition of which is important for the development of alcoholic liver disease, was evaluated. Microbiota changes similar to those of humans with alcoholic liver disease were observed. This study demonstrates that the development of liver disease and its amelioration through drugs can be easily evaluated using the present model or modifications thereof. Thus, this study is expected to be useful in the elucidation of liver disease development.
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Affiliation(s)
- Koichi Fujisawa
- Center for Regenerative Medicine, Yamaguchi University School of Medicine, Minami Kogushi 1-1-1, Ube, Yamaguchi, 755-8505, Japan; Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Taro Takami
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan.
| | - Takahiro Nagatomo
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Yumi Fukui
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Hisashi Hoshida
- Department of Applied Chemistry, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Tokiwadai 2-16-1, Ube, Yamaguchi, 755-8611, Japan
| | - Issei Saeki
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Toshihiko Matsumoto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Isao Hidaka
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Naoki Yamamoto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Isao Sakaida
- Center for Regenerative Medicine, Yamaguchi University School of Medicine, Minami Kogushi 1-1-1, Ube, Yamaguchi, 755-8505, Japan; Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
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32
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Laitakari A, Ollonen T, Kietzmann T, Walkinshaw G, Mennerich D, Izzi V, Haapasaari KM, Myllyharju J, Serpi R, Dimova EY, Koivunen P. Systemic inactivation of hypoxia-inducible factor prolyl 4-hydroxylase 2 in mice protects from alcohol-induced fatty liver disease. Redox Biol 2019; 22:101145. [PMID: 30802717 PMCID: PMC6396018 DOI: 10.1016/j.redox.2019.101145] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 02/06/2019] [Accepted: 02/14/2019] [Indexed: 12/19/2022] Open
Abstract
Alcoholic fatty liver disease (AFLD) is a growing health problem for which no targeted therapy is available. We set out to study whether systemic inactivation of the main hypoxia-inducible factor prolyl 4-hydroxylase, HIF-P4H-2 (PHD2/EglN1), whose inactivation has been associated with protection against metabolic dysfunction, could ameliorate it. HIF-P4H-2-deficient and wild-type (WT) mice or HIF-P4H inhibitor-treated WT mice were subjected to an ethanol diet for 3-4 weeks and their metabolic health, liver and white adipose tissue (WAT) were analyzed. Primary hepatocytes from the mice were used to study cellular ethanol metabolism. The HIF-P4H-2-deficient mice retained a healthier metabolic profile, including less adiposity, better lipoprotein profile and restored insulin sensitivity, while on the ethanol diet than the WT. They also demonstrated protection from alcohol-induced steatosis and liver damage and had less WAT inflammation. In liver and WAT the expression of the key lipogenic and adipocytokine mRNAs, such as Fas and Ccl2, were downregulated, respectively. The upregulation of metabolic and antioxidant hypoxia-inducible factor (HIF) target genes, such as Slcs 16a1 and 16a3 and Gclc, respectively, and a higher catalytic activity of ALDH2 in the HIF-P4H-2-deficient hepatocytes improved handling of the toxic ethanol metabolites and oxidative stress. Pharmacological HIF-P4H inhibition in the WT mice phenocopied the protection against AFLD. Our data show that global genetic inactivation of HIF-P4H-2 and pharmacological HIF-P4H inhibition can protect mice from alcohol-induced steatosis and liver injury, suggesting that HIF-P4H inhibitors, now in clinical trials for renal anemia, could also be studied in randomized clinical trials for treatment of AFLD.
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Affiliation(s)
- Anna Laitakari
- Biocenter Oulu, Faculty of Biochemistry and Molecular Medicine, Oulu Center for Cell-Matrix Research, University of Oulu, Oulu, Finland
| | - Teemu Ollonen
- Biocenter Oulu, Faculty of Biochemistry and Molecular Medicine, Oulu Center for Cell-Matrix Research, University of Oulu, Oulu, Finland
| | - Thomas Kietzmann
- Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | | | - Daniela Mennerich
- Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Valerio Izzi
- Biocenter Oulu, Faculty of Biochemistry and Molecular Medicine, Oulu Center for Cell-Matrix Research, University of Oulu, Oulu, Finland
| | - Kirsi-Maria Haapasaari
- Department of Pathology, Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - Johanna Myllyharju
- Biocenter Oulu, Faculty of Biochemistry and Molecular Medicine, Oulu Center for Cell-Matrix Research, University of Oulu, Oulu, Finland
| | - Raisa Serpi
- Biocenter Oulu, Faculty of Biochemistry and Molecular Medicine, Oulu Center for Cell-Matrix Research, University of Oulu, Oulu, Finland
| | - Elitsa Y Dimova
- Biocenter Oulu, Faculty of Biochemistry and Molecular Medicine, Oulu Center for Cell-Matrix Research, University of Oulu, Oulu, Finland
| | - Peppi Koivunen
- Biocenter Oulu, Faculty of Biochemistry and Molecular Medicine, Oulu Center for Cell-Matrix Research, University of Oulu, Oulu, Finland.
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Abstract
Inflammatory processes are primary contributors to the development and progression of alcoholic steatohepatitis (ASH), with severe alcoholic hepatitis characterised by non-resolving inflammation. Inflammation in the progression of ASH is a complex response to microbial dysbiosis, loss of barrier integrity in the intestine, hepatocellular stress and death, as well as inter-organ crosstalk. Herein, we review the roles of multiple cell types that are involved in inflammation in ASH, including resident macrophages and infiltrating monocytes, as well as other cell types in the innate and adaptive immune system. In response to chronic, heavy alcohol exposure, hepatocytes themselves also contribute to the inflammatory process; hepatocytes express a large number of chemokines and inflammatory mediators and can also release damage-associated molecular patterns during injury and death. These cellular responses are mediated and accompanied by changes in the expression of pro- and anti-inflammatory cytokines and chemokines, as well as by signals which orchestrate the recruitment of immune cells and activation of the inflammatory process. Additional mechanisms for cell-cell and inter-organ communication in ASH are also reviewed, including the roles of extracellular vesicles and microRNAs, as well as inter-organ crosstalk. We highlight the concept that inflammation also plays an important role in promoting liver repair and controlling bacterial infection. Understanding the complex regulatory processes that are disrupted during the progression of ASH will likely lead to better targeted strategies for therapeutic interventions.
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Affiliation(s)
- Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, United States.
| | - Maleeha F Ahmad
- Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Laura E Nagy
- Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, United States; Northern Ohio Alcohol Center, Departments of Molecular Medicine, Inflammation and Immunity, Cleveland Clinic, Cleveland, OH, United States.
| | - Hidekazu Tsukamoto
- Southern California Research Center for ALPD and Cirrhosis, Department of Pathology, University of Southern California, Greater Los Angeles VA Healthcare System, Los Angeles, CA, United States.
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Li X, Jin Q, Zhang Y, Wu YL, Jin CM, Cui BW, Li Y, Jin MJ, Shang Y, Jiang M, Yang HX, Wu M, Liu J, Lian LH, Nan JX. Inhibition of P2X7R-NLRP3 Inflammasome Activation by Pleurotus citrinopileatus: A Possible Protective Role in Alcoholic Hepatosteatosis. J Agric Food Chem 2018; 66:13183-13190. [PMID: 30497264 DOI: 10.1021/acs.jafc.8b05756] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Pleurotus citrinopileatus (golden oyster mushroom) is a widely used edible mushroom. We investigated the inhibitory effect of P. citrinopileatus aqueous extract against alcoholic steatohepatitis and its underlying mechanism. Acute and chronic ethanol-feeding murine models were established by intragastrically administering ethanol or feeding an ethanol-containing Lieber-DeCarli liquid diet to male C57BL/6 mice. In both models, P. citrinopileatus decreased serum alanine aminotransferase (ALT), aspartate transaminase (AST), triglyceride (TG), and hepatic TG levels. Hematoxylin and eosin (HE) and Oil Red O staining confirmed that P. citrinopileatus ameliorated both acute and chronic alcoholic hepatosteatosis, characterized by regulation of lipid-metabolism-related proteins, including sirtuin 1 (SIRT1), AMP-activated kinase (AMPK), and sterol regulatory element-binding protein (SREBP1). P. citrinopileatus reversed inflammatory response via modulating purinergic receptor P2X ligand-gated ion channel 7 (P2X7R)-NOD-like receptor pyrin domain 3 (NLRP3) inflammasome. P. citrinopileatus restored the expressions of those proteins to a normal level. In addition, HepG2 cells were incubated with P. citrinopileatus prior to ethanol stimulation. P. citrinopileatus reduced ethanol exposure-induced lipid deposition. Concomitantly, P. citrinopileatus increased AMPK and SIRT1 expressions, which were reduced by ethanol treatment. P. citrinopileatus ameliorated alcoholic hepatic steatosis and accompanied inflammatory response via regulating SIRT1-AMPK and P2X7R-NLRP3 inflammasome activation, highlighting a promising strategy and utility of P. citrinopileatus for alcoholic steatohepatitis as dietary health supplements.
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Affiliation(s)
- Xia Li
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Quan Jin
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Yu Zhang
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Yan-Ling Wu
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Cheng-Min Jin
- Analysis Center , Dt&CRO, Incorporated , Yongin-si , Gyeonggi-do 17042 , Republic of Korea
| | - Ben-Wen Cui
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Ying Li
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Ming-Ji Jin
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Yue Shang
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Min Jiang
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Hong-Xu Yang
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Mei Wu
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Jian Liu
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Li-Hua Lian
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
| | - Ji-Xing Nan
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin 133002 , People's Republic of China
- Clinical Research Center , Yanbian University Hospital , Yanji , Jilin 133002 , People's Republic of China
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Trogen G, Bacon J, Li Y, Wright GL, Degroat A, Hagood KL, Warren Z, Forsman A, Kilaru A, Clark WA, Peterson JM. Transgenic overexpression of CTRP3 prevents alcohol-induced hepatic triglyceride accumulation. Am J Physiol Endocrinol Metab 2018; 315:E949-E960. [PMID: 29763374 PMCID: PMC6415714 DOI: 10.1152/ajpendo.00050.2018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This study tested the ability of a novel adipose tissue derived cytokine, C1q TNF-related protein-3 (CTRP3), to prevent alcohol-induced hepatic lipid accumulation, or alcoholic fatty liver disease (ALD). Previous work has demonstrated that CTRP3 is effective at preventing high-fat diet-induced fatty liver; however, the potential of CTRP3 to inhibit ALD has not been explored. To test the potential protective effects of CTRP3, transgenic mice overexpressing CTRP3 (Tg) or wild-type littermates (WT) were subjected to one of two different models of ALD. In the first model, known as the NIAAA model, mice were fed control or alcohol-containing liquid diets (5% vol/vol) for 10 days followed by a single gavage of ethanol (5 g/kg). In the second model, the chronic model, mice were fed control or alcohol-containing diets for 6 wk with no gavage. This study found that CTRP3 reduced triglyceride accumulation in the chronic model of alcohol consumption by ~50%, whereas no reduction was observed in the NIAAA model. Further analysis of isolated primary hepatocytes from WT and Tg mice demonstrated that CTRP3 increased oxygen consumption in the presence of fatty acids, indicating that CTRP3 increases hepatic fatty acid utilization. In conclusion, this study indicates that CTRP3 attenuates hepatic triglyceride accumulation in response to long-term chronic, but not short-term, alcohol consumption.
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Affiliation(s)
- Greta Trogen
- East Tennessee State University, Johnson City, Tennessee
| | - Joshua Bacon
- East Tennessee State University, Johnson City, Tennessee
| | - Ying Li
- Quillen College of Medicine, Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee
| | - Gary L Wright
- Quillen College of Medicine, Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee
| | - Ashley Degroat
- Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee
| | - Kendra L Hagood
- Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee
| | - Zachary Warren
- East Tennessee State University, Johnson City, Tennessee
| | - Allan Forsman
- College of Public Health, Department of Health Sciences, East Tennessee State University, Johnson City, Tennessee
| | - Aruna Kilaru
- College of Arts and Sciences, Department of Biological Sciences, East Tennessee State University, Johnson City, Tennessee
| | - W Andrew Clark
- Allied Health Sciences, College of Clinical and Rehabilitative Health Sciences, East Tennessee State University, Johnson City, Tennessee
| | - Jonathan M Peterson
- Quillen College of Medicine, Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee
- College of Public Health, Department of Health Sciences, East Tennessee State University, Johnson City, Tennessee
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Meng X, Li S, Li Y, Gan RY, Li HB. Gut Microbiota's Relationship with Liver Disease and Role in Hepatoprotection by Dietary Natural Products and Probiotics. Nutrients 2018; 10:E1457. [PMID: 30297615 PMCID: PMC6213031 DOI: 10.3390/nu10101457] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 09/17/2018] [Accepted: 09/26/2018] [Indexed: 12/14/2022] Open
Abstract
A variety of dietary natural products have shown hepatoprotective effects. Increasing evidence has also demonstrated that gut microorganisms play an important role in the hepatoprotection contributed by natural products. Gut dysbiosis could increase permeability of the gut barrier, resulting in translocated bacteria and leaked gut-derived products, which can reach the liver through the portal vein and might lead to increased oxidative stress and inflammation, thereby threatening liver health. Targeting gut microbiota modulation represents a promising strategy for hepatoprotection. Many natural products could protect the liver from various injuries or mitigate hepatic disorders by reverting gut dysbiosis, improving intestinal permeability, altering the primary bile acid, and inhibiting hepatic fatty acid accumulation. The mechanisms underlying their beneficial effects also include reducing oxidative stress, suppressing inflammation, attenuating fibrosis, and decreasing apoptosis. This review discusses the hepatoprotective effects of dietary natural products via modulating the gut microbiota, mainly focusing on the mechanisms of action.
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Affiliation(s)
- Xiao Meng
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangdong Engineering Technology Research Center of Nutrition Translation, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Sha Li
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China.
| | - Ya Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangdong Engineering Technology Research Center of Nutrition Translation, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Ren-You Gan
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangdong Engineering Technology Research Center of Nutrition Translation, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
- South China Sea Bioresource Exploitation and Utilization Collaborative Innovation Center, Sun Yat-sen University, Guangzhou 510006, China.
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Madushani Herath KHIN, Cho J, Kim A, Eom TK, Kim JS, Kim JB, Doh YH, Jee Y. Phenolic acid and flavonoid-rich fraction of Sasa quelpaertensis Nakai leaves prevent alcohol induced fatty liver through AMPK activation. J Ethnopharmacol 2018; 224:335-348. [PMID: 29906537 DOI: 10.1016/j.jep.2018.06.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 06/08/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sasa quelpaertensis Nakai is an edible dwarf bamboo cultivated mainly in Jeju Island, South Korea and its leaf displays various health-promoting properties including antioxidant scavenging. AIM OF THE STUDY In this study, we aimed at elucidating its hepatoprotective effect against alcohol-induced fatty liver. METHODS In in vitro study, we evaluated the cytotoxicity and hepatoprotective effect of different solvent fractions (aqua, butanol, chloroform, ethyl acetate and hexane) of 80% EtOH extract of S. quelpaertensis Nakai leaf. In vivo experiment performed using binge alcohol consumption model. RESULTS Although all five fractions (0-1000 µg/mL) were non-cytotoxic to HepG2 cells, only ethyl acetate fraction (SQEA), rich in phenolic acids such as p-coumaric acid and flavonoids particularly myristin, showed hepatoprotective effect against EtOH (400 mM) in HepG2 cells. Furthermore, SQEA significantly decreased the ethanol induced cell death and enhanced the cell proliferation. In in vivo experiment using binge consumption model (5 g of EtOH/kg body weight in every 12 h for 3 times), SQEA treatment (10, 50 and 100 mg/kg) markedly reduced the alcohol induced histopathological changes and serum EtOH content, and reversed the reduction of glutathione level in ethanol challenged livers. Further, it suppressed the expression of cytochrome P450 2E1 (CYP2E1). In particular, SQEA activated AMP activated protein kinase (AMPK) pathway, and decreased the expression of tumor necrosis factor receptor-1 (TNFR1), which attenuated lipogenesis via decreased expression of fatty acid synthase (FAS). Inhibited lipogenesis due to SQEA treatment directed towards decreased perilipin-2 expression. These results indicate that SQEA has hypolipidemic effect which is mediated by decreased oxidative stress, increased fatty acid oxidation response and decreased lipogenesis. CONCLUSION Our results suggest the possibility of developing SQEA as a natural hepatoprotective agent potent in attenuating alcohol-induced fatty liver.
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Affiliation(s)
| | - Jinhee Cho
- Department of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea.
| | - Areum Kim
- Interdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, Jeju 63243, Republic of Korea.
| | - Tae Kil Eom
- Subtropical/Tropical Organism Gene Bank, SARI, Jeju National University, Jeju 63243, Republic of Korea.
| | - Ju-Sung Kim
- Majors in Plant Resource and Environment, College of Agriculture and Life Sciences, SARI, Jeju National University, Jeju 63243, Republic of Korea.
| | - Jae-Bum Kim
- Korea Institute of Industrial Technology, Republic of Korea.
| | - Yang Hoi Doh
- Department of Electronic Engineering, Jeju National University, Jeju 63243, Republic of Korea.
| | - Youngheun Jee
- Interdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, Jeju 63243, Republic of Korea; Department of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea.
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Liu H, Liu M, Fu X, Zhang Z, Zhu L, Zheng X, Liu J. Astaxanthin Prevents Alcoholic Fatty Liver Disease by Modulating Mouse Gut Microbiota. Nutrients 2018; 10:nu10091298. [PMID: 30217037 PMCID: PMC6164583 DOI: 10.3390/nu10091298] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 09/07/2018] [Accepted: 09/10/2018] [Indexed: 02/06/2023] Open
Abstract
The development and progression of alcoholic fatty liver disease (AFLD) is influenced by the intestinal microbiota. Astaxanthin, a type of oxygenated carotenoid with strong antioxidant and anti-inflammatory properties, has been proven to relieve liver injury. However, the relationship between the gut microbiota regulation effect of astaxanthin and AFLD improvement remains unclear. The effects of astaxanthin on the AFLD phenotype, overall structure, and composition of gut microbiota were assessed in ethanol-fed C57BL/6J mice. The results showed that astaxanthin treatment significantly relieves inflammation and decreases excessive lipid accumulation and serum markers of liver injury. Furthermore, astaxanthin was shown to significantly decrease species from the phyla Bacteroidetes and Proteobacteria and the genera Butyricimonas, Bilophila, and Parabacteroides, as well as increase species from Verrucomicrobia and Akkermansia compared with the Et (ethanol)group. Thirteen phylotypes related to inflammation as well as correlated with metabolic parameters were significantly altered by ethanol, and then notably reversed by astaxanthin. Additionally, astaxanthin altered 18 and 128 KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways involved in lipid metabolism and xenobiotic biodegradation and metabolism at levels 2 and 3, respectively. These findings suggest that Aakkermansia may be a potential target for the astaxanthin-induced alleviation of AFLD and may be a potential treatment for bacterial disorders induced by AFLD.
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Affiliation(s)
- Huilin Liu
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Meihong Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China.
- National Engineering Laboratory for Wheat and Corn Deep Processing, Changchun 130118, China.
| | - Xueqi Fu
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Ziqi Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.
| | - Lingyu Zhu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.
| | - Xin Zheng
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.
| | - Jingsheng Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China.
- National Engineering Laboratory for Wheat and Corn Deep Processing, Changchun 130118, China.
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Hsu JY, Lin HH, Hsu CC, Chen BC, Chen JH. Aqueous Extract of Pepino ( Solanum muriactum Ait) Leaves Ameliorate Lipid Accumulation and Oxidative Stress in Alcoholic Fatty Liver Disease. Nutrients 2018; 10:nu10070931. [PMID: 30037014 PMCID: PMC6073701 DOI: 10.3390/nu10070931] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 12/20/2022] Open
Abstract
Chronic alcohol intake leads to alcoholic fatty liver. The pathogenesis of alcoholic fatty liver is related to abnormal lipid accumulation, oxidative stress, endotoxins, and cytokines. Solanum muricatum Ait. (Pepino) is a plant food commonly cultivated in the Penghu island, Taiwan. Previous studies indicated that the aqueous extract of pepino was able to attenuate diabetic progression via its antioxidative and anti-inflammatory effects. However, the mechanisms of the antioxidative and anti-inflammatory effects of pepino leaf in preventing alcoholic fatty liver remain unknown. In this study, Lieber–DeCarli ethanol-containing liquid diet was used to induce alcoholic hepatic injury in C57BL/6 mice. The hepatoprotective effects and the related mechanisms of aqueous extract of pepino leaf (AEPL) were examined. Our results showed that 2% AEPL treatments protected the liver from ethanol-induced injury through reducing serum levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), total cholesterol (TC) and triglyceride (TG) (all p < 0.05). AEPL had the effects in improving the ethanol-induced lipid accumulation in mice under histological examination. Molecular data indicated that the anti-lipid accumulation effect of AEPL might be mediated via inducing hepatic levels of phospho-adenosine monophosphate-activated kinase (p-AMPK) and peroxisome proliferator-activated receptor (PPAR)-α, and reducing the expressions of hepatic lipogenic enzymes, including sterol regulatory element-binding protein (SREBP)-1c, acetyl-CoA carboxylase (ACC), and fatty acid synthase (FAS) (all p < 0.05). AEPL also decreased hepatic levels of thiobarbituric acid relative substances (TBARS), tumor necrosis factor (TNF)-α, and interleukin (IL)-6, as well as the expression of nuclear factor kappa B (NF-κB) (all p < 0.05). Moreover, AEPL significantly elevated the activities of superoxide dismutase (SOD), catalase, and glutathione peroxidase (GPx), and glutathione (GSH) content compared to the ethanol-fed group (all p < 0.05). Our present study suggests that AEPL could protect the liver against ethanol-induced oxidative injury and lipid accumulation.
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Affiliation(s)
- Jen-Ying Hsu
- Department of Nutrition, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung City 40201, Taiwan.
| | - Hui-Hsuan Lin
- Department of Medical Laboratory and Biotechnology, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung City 40201, Taiwan.
- Department of Clinical Laboratory, Chung Shan Medical University Hospital, No. 110, Sec. 1, Jianguo N. Road, Taichung City 40201, Taiwan.
| | - Cheng-Chin Hsu
- Department of Nutrition, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung City 40201, Taiwan.
| | - Bing-Chen Chen
- Department of Nutrition, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung City 40201, Taiwan.
| | - Jing-Hsien Chen
- Department of Nutrition, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung City 40201, Taiwan.
- Department of Clinical Laboratory, Chung Shan Medical University Hospital, No. 110, Sec. 1, Jianguo N. Road, Taichung City 40201, Taiwan.
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Zhang Y, Jin Q, Li X, Jiang M, Cui BW, Xia KL, Wu YL, Lian LH, Nan JX. Amelioration of Alcoholic Liver Steatosis by Dihydroquercetin through the Modulation of AMPK-Dependent Lipogenesis Mediated by P2X7R-NLRP3-Inflammasome Activation. J Agric Food Chem 2018; 66:4862-4871. [PMID: 29706079 DOI: 10.1021/acs.jafc.8b00944] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Dihydroquercetin (TAX) is the most abundant dihydroflavone found in onions, milk thistle, and Douglas fir bark. We investigated whether TAX could inhibit lipid accumulation in alcoholic liver steatosis in vivo and in vitro. An in vivo model was established by intragastrically treating mice with ethanol, and an in vitro model was created by treating HepG2 cells with ethanol. TAX regulated SREBP1 and ACC expression by elevating LKB1 and AMPK phosphorylation. Also, TAX upregulated SIRT1 expression, which was suppressed by ethanol intake. Decreased expression of P2X7R and NLRP3 and suppressed cleavage of caspase-1 by TAX resulted in the inhibition of IL-1β production and release. Additionally, TAX reduced lipogenesis and promoted lipid oxidation via the regulation of AMPK and ACC in ethanol-treated steatotic HepG2 cells. TAX downregulated IL-1β cleavage responses to LPS and ATP stimulation in HepG2 cells. P2X7R deficiency attenuated lipid accumulation, characterized by increased AMPK activity and decreased SREBP1 expression in ethanol-treated HepG2 cells. Our data showed that TAX exhibited the ability to inhibit lipogenesis and a hepatoprotective capacity, indicating that TAX has therapeutic potential for preventing alcoholic liver steatosis.
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Affiliation(s)
- Yu Zhang
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin Province 133002 , China
| | - Quan Jin
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin Province 133002 , China
| | - Xia Li
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin Province 133002 , China
| | - Min Jiang
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin Province 133002 , China
| | - Ben-Wen Cui
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin Province 133002 , China
| | - Kai-Li Xia
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin Province 133002 , China
| | - Yan-Ling Wu
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin Province 133002 , China
| | - Li-Hua Lian
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin Province 133002 , China
| | - Ji-Xing Nan
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy , Yanbian University , Yanji , Jilin Province 133002 , China
- Clinical Research Center , Yanbian University Hospital , Yanji , Jilin Province 133002 , China
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41
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Abstract
CONTEXT Molecular pathogenesis of chronic alcoholism is linked to increased endoplasmic reticulum stress. Ethanol is a competitive inhibitor of vitamin A metabolism and vitamin A supplementation aggravates existing liver problems. Hence, we probed into the impact of supplementation of all trans retinoic acid (ATRA), the active metabolite of vitamin A on ethanol-induced endoplasmic reticulcum stress. METHODS Male Sprague-Dawley rats were divided into four groups - I: Control; II: Ethanol; III: ATRA; IV: ATRA + Ethanol. After 90 days the animals were sacrificed to study markers of lipid peroxidation in hepatic microsomal fraction and expression of ER stress proteins and apoptosis in liver. RESULTS AND CONCLUSION Ethanol caused hepatic hyperlipidemia, enhanced microsomal lipid peroxidation, upregulated expression of unfolded protein response associated proteins and that of apoptosis. Ethanol also led to downregulation of retinoid receptors. ATRA supplementation reversed all these alterations indicating the decrease in ethanol-induced endoplasmic reticulum stress.
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Affiliation(s)
- Saritha S Nair
- a Department of Biochemistry , University of Kerala , Thiruvananthapuram , Kerala , India
| | - Syam Das S
- a Department of Biochemistry , University of Kerala , Thiruvananthapuram , Kerala , India
| | - Reshma P Nair
- b Agroprocessing and Technology Division , CSIR-NIIST , Thiruvananthapuram , Kerala , India
| | - M Indira
- a Department of Biochemistry , University of Kerala , Thiruvananthapuram , Kerala , India
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42
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Ma Z, Zhang Y, Li Q, Xu M, Bai J, Wu S. Resveratrol improves alcoholic fatty liver disease by downregulating HIF-1α expression and mitochondrial ROS production. PLoS One 2017; 12:e0183426. [PMID: 28817659 PMCID: PMC5560649 DOI: 10.1371/journal.pone.0183426] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 08/03/2017] [Indexed: 01/14/2023] Open
Abstract
Oxidative stress has been demonstrated to be involved in the etiology of alcoholic fatty liver disease (AFLD). Previous studies had demonstrated that resveratrol (RES) could reduce oxidative stress by different mechanisms. However, the effect of RES on alcohol-induced fatty liver remains unclear. In the present study, a total of 48 male SD rats were divided into three groups: Control, AFLD, and RES groups. Rats were administered with either nothing or 65% vol/vol alcohol (5 ml/kg/day in the first three days, and then 10 ml/kg/day in the following days) with or without RES supplementation (250 mg/kg/day) for 4 weeks. Blood and liver tissue samples were collected and subjected to biochemical assays, histological examination, Western blot, and mitochondrial radical oxygen species (ROS) assays. In RES group, significant decreases in serum ALT and AST concentrations, fat deposition, triglyceride (TG) content, HIF-1α protein expression as well as mitochondrial ROS production in liver were observed when compared with AFLD group (all p <0.05). These results indicated that RES could alleviate the liver injury induced by alcohol and prevent the progression of AFLD. Down regulation of HIF-1α protein expression and mitochondrial ROS production in liver might be, at least part of, the underlying mechanisms.
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Affiliation(s)
- Zhenhua Ma
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Yangmin Zhang
- Department of Blood Transfusion, Xi’an Central Hospital, Xi'an, Shaanxi, P.R. China
| | - Qingchun Li
- The Third Hepatic Disease Ward, The Affiliated Xi'an Eighth Hospital, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Meng Xu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Jigang Bai
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Shengli Wu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
- * E-mail:
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43
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Wang L, Fouts DE, Stärkel P, Hartmann P, Chen P, Llorente C, DePew J, Moncera K, Ho SB, Brenner DA, Hooper LV, Schnabl B. Intestinal REG3 Lectins Protect against Alcoholic Steatohepatitis by Reducing Mucosa-Associated Microbiota and Preventing Bacterial Translocation. Cell Host Microbe 2016; 19:227-39. [PMID: 26867181 DOI: 10.1016/j.chom.2016.01.003] [Citation(s) in RCA: 247] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 12/14/2015] [Accepted: 01/13/2016] [Indexed: 02/07/2023]
Abstract
Approximately half of all deaths from liver cirrhosis, the tenth leading cause of mortality in the United States, are related to alcohol use. Chronic alcohol consumption is accompanied by intestinal dysbiosis and bacterial overgrowth, yet little is known about the factors that alter the microbial composition or their contribution to liver disease. We previously associated chronic alcohol consumption with lower intestinal levels of the antimicrobial-regenerating islet-derived (REG)-3 lectins. Here, we demonstrate that intestinal deficiency in REG3B or REG3G increases numbers of mucosa-associated bacteria and enhances bacterial translocation to the mesenteric lymph nodes and liver, promoting the progression of ethanol-induced fatty liver disease toward steatohepatitis. Overexpression of Reg3g in intestinal epithelial cells restricts bacterial colonization of mucosal surfaces, reduces bacterial translocation, and protects mice from alcohol-induced steatohepatitis. Thus, alcohol appears to impair control of the mucosa-associated microbiota, and subsequent breach of the mucosal barrier facilitates progression of alcoholic liver disease.
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Affiliation(s)
- Lirui Wang
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; Department of Medicine, VA San Diego Healthcare System, San Diego, CA 92161, USA
| | | | - Peter Stärkel
- St. Luc University Hospital, Université Catholique de Louvain, Brussels 1200, Belgium
| | - Phillipp Hartmann
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Peng Chen
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Cristina Llorente
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; Department of Medicine, VA San Diego Healthcare System, San Diego, CA 92161, USA
| | | | | | - Samuel B Ho
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; Department of Medicine, VA San Diego Healthcare System, San Diego, CA 92161, USA
| | - David A Brenner
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Lora V Hooper
- Howard Hughes Medical Institute; Department of Immunology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Bernd Schnabl
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; Department of Medicine, VA San Diego Healthcare System, San Diego, CA 92161, USA.
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44
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Cai Y, Jogasuria A, Yin H, Xu MJ, Hu X, Wang J, Kim C, Wu J, Lee K, Gao B, You M. The Detrimental Role Played by Lipocalin-2 in Alcoholic Fatty Liver in Mice. Am J Pathol 2016; 186:2417-28. [PMID: 27427417 DOI: 10.1016/j.ajpath.2016.05.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/29/2016] [Accepted: 05/02/2016] [Indexed: 01/01/2023]
Abstract
We have previously shown that the ethanol-mediated elevation of lipocaline-2 (LCN2) is closely associated with the development of alcoholic fatty liver disease (AFLD) in mice. Herein, we aimed to understand the functional significance of LCN2 induction by ethanol and to explore its underlying mechanisms. We evaluated the effects of LCN2 in an in vitro cellular alcoholic steatosis model and in an animal study using wild-type and LCN2 knockout mice fed for 4 weeks with an ethanol-supplemented Lieber-DeCarli diet. In the cellular model of alcoholic steatosis, recombinant LCN2 or overexpression of LCN2 exacerbated ethanol-induced fat accumulation, whereas knocking down LCN2 prevented steatosis in hepatocytes exposed to ethanol. Consistently, removal of LCN2 partially but significantly alleviated alcoholic fatty liver injury in mice. Mechanistically, LCN2 mediates detrimental effects of ethanol in the liver via disrupted multiple signaling pathways, including aberrant nicotinamide phosphoribosyltransferase-sirtuin 1 axis, perturbed endocrine metabolic regulatory fibroblast growth factor 15/19 signaling, and impaired chaperone-mediated autophagy. Finally, compared with healthy human livers, liver samples from patients with AFLD had lower gene expression of several LCN2-regualted molecules. Our study demonstrated a pivotal and causal role of LCN2 in the development of AFLD and suggested that targeting the LCN2 could be of great value for the treatment of human AFLD.
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Affiliation(s)
- Yan Cai
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, Maryland
| | - Alvin Jogasuria
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio
| | - Huquan Yin
- Department of Molecular Pharmacology and Physiology, University of South Florida Health Sciences Center, Tampa, Florida
| | - Ming-Jiang Xu
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, Maryland
| | - Xudong Hu
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio; Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiayou Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio; Department of Anatomy, School of Fundamental Medical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Chunki Kim
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio
| | - Jiashin Wu
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio
| | - Kwangwon Lee
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio
| | - Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, Maryland
| | - Min You
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio.
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45
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Fengler VHI, Macheiner T, Kessler SM, Czepukojc B, Gemperlein K, Müller R, Kiemer AK, Magnes C, Haybaeck J, Lackner C, Sargsyan K. Susceptibility of Different Mouse Wild Type Strains to Develop Diet-Induced NAFLD/AFLD-Associated Liver Disease. PLoS One 2016; 11:e0155163. [PMID: 27167736 PMCID: PMC4863973 DOI: 10.1371/journal.pone.0155163] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 04/25/2016] [Indexed: 12/17/2022] Open
Abstract
Although non-alcoholic and alcoholic fatty liver disease have been intensively studied, concerning pathophysiological mechanisms are still incompletely understood. This may be due to the use of different animal models and resulting model-associated variation. Therefore, this study aimed to compare three frequently used wild type mouse strains in their susceptibility to develop diet-induced features of non-alcoholic/alcoholic fatty liver disease. Fatty liver disease associated clinical, biochemical, and histological features in C57BL/6, CD-1, and 129Sv WT mice were induced by (i) high-fat diet feeding, (ii) ethanol feeding only, and (iii) the combination of high-fat diet and ethanol feeding. Hepatic and subcutaneous adipose lipid profiles were compared in CD-1 and 129Sv mice. Additionally hepatic fatty acid composition was determined in 129Sv mice. In C57BL/6 mice dietary regimens resulted in heterogeneous hepatic responses, ranging from pronounced steatosis and inflammation to a lack of any features of fatty liver disease. Liver-related serum biochemistry showed high deviations within the regimen groups. CD-1 mice did not exhibit significant changes in metabolic and liver markers and developed no significant steatosis or inflammation as a response to dietary regimens. Although 129Sv mice showed no weight gain, this strain achieved most consistent features of fatty liver disease, apparent from concentration alterations of liver-related serum biochemistry as well as moderate steatosis and inflammation as a result of all dietary regimens. Furthermore, the hepatic lipid profile as well as the fatty acid composition of 129Sv mice were considerably altered, upon feeding the different dietary regimens. Accordingly, diet-induced non-alcoholic/alcoholic fatty liver disease is most consistently promoted in 129Sv mice compared to C57BL/6 and CD-1 mice. As a conclusion, this study demonstrates the importance of genetic background of used mouse strains for modeling diet-induced non-alcoholic/alcoholic fatty liver disease.
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MESH Headings
- Alanine Transaminase/metabolism
- Animals
- Aspartate Aminotransferases/metabolism
- Biomarkers/metabolism
- Cholesterol/metabolism
- Diet, High-Fat/adverse effects
- Dietary Fats/administration & dosage
- Disease Models, Animal
- Disease Susceptibility
- Ethanol/administration & dosage
- Fatty Acids, Nonesterified/metabolism
- Fatty Liver, Alcoholic/etiology
- Fatty Liver, Alcoholic/genetics
- Fatty Liver, Alcoholic/metabolism
- Fatty Liver, Alcoholic/pathology
- Liver/metabolism
- Liver/pathology
- Liver Function Tests
- Male
- Mice
- Mice, 129 Strain
- Mice, Inbred C57BL
- Mice, Inbred Strains
- Non-alcoholic Fatty Liver Disease/etiology
- Non-alcoholic Fatty Liver Disease/genetics
- Non-alcoholic Fatty Liver Disease/metabolism
- Non-alcoholic Fatty Liver Disease/pathology
- Species Specificity
- Subcutaneous Fat/metabolism
- Subcutaneous Fat/pathology
- Triglycerides/metabolism
- Weight Gain
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Affiliation(s)
| | - Tanja Macheiner
- BioPersMed/Biobank Graz, Medical University of Graz, Graz, Austria
| | - Sonja M. Kessler
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Beate Czepukojc
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Katja Gemperlein
- Department of Pharmacy, Pharmaceutical Biotechnology, Saarland University, Saarbrücken, Germany
- Department of Microbial Natural Products, Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research and Pharmaceutical Biotechnology (HZI), Saarbrücken, Germany
| | - Rolf Müller
- Department of Pharmacy, Pharmaceutical Biotechnology, Saarland University, Saarbrücken, Germany
- Department of Microbial Natural Products, Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research and Pharmaceutical Biotechnology (HZI), Saarbrücken, Germany
| | - Alexandra K. Kiemer
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Christoph Magnes
- Institute for Biomedicine and Health Sciences, Joanneum Research, Graz, Austria
| | | | - Carolin Lackner
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Karine Sargsyan
- BioPersMed/Biobank Graz, Medical University of Graz, Graz, Austria
- * E-mail:
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46
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Wang Y, Zhao Y, Li M, Wang Y, Yu S, Zeng T. Docosahexaenoic acid supplementation failed to attenuate chronic alcoholic fatty liver in mice. Acta Biochim Biophys Sin (Shanghai) 2016; 48:482-4. [PMID: 27025599 DOI: 10.1093/abbs/gmw016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Affiliation(s)
- Yi Wang
- Institute of Toxicology, School of Public Health, Shandong University, Jinan 250012, China
| | - Yuying Zhao
- Institute of Toxicology, School of Public Health, Shandong University, Jinan 250012, China
| | - Mingzhuo Li
- Institute of Toxicology, School of Public Health, Shandong University, Jinan 250012, China
| | - Yunxuan Wang
- Institute of Toxicology, School of Public Health, Shandong University, Jinan 250012, China
| | - Shuqing Yu
- Institute of Toxicology, School of Public Health, Shandong University, Jinan 250012, China
| | - Tao Zeng
- Institute of Toxicology, School of Public Health, Shandong University, Jinan 250012, China
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47
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Ishii KA, Takamura T. [Non-alcoholic fatty liver disease (NAFLD) /non-alcoholic steatohepatitis (NASH) and nutrition]. Clin Calcium 2016; 26:363-367. [PMID: 26923972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is characterized by excessive fat accumulation in the form of triglycerides in the hepatocytes. A more severe form of NAFLD with necrosis, inflammation, and fibrosis is called non-alcoholic steatohepatitis (NASH). The liver is located in the center of the body's organ network and acts as a coordinator of glucose and lipid metabolism. Therefore, it is important to perform nutritional therapy of patients with NAFLD/NASH while maintaining the energy balance in the entire body.
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Affiliation(s)
- Kiyo-aki Ishii
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Japan
| | - Toshinari Takamura
- Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Japan
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48
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Livanov GA, Shikalova IA, Lodyagin AN, Glushkov S, Batotsyrenov BV, Loladze AT, Kovalenko AL. [[Features of Pharmacological Correction of Alcoholic Fatty Liver Disease in Patients with Acute Ethanol Intoxication].]. EKSPERIMENTAL'NAIA I KLINICHESKAIA GASTROENTEROLOGIIA = EXPERIMENTAL & CLINICAL GASTROENTEROLOGY 2016:45-50. [PMID: 28614644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The aim of the study was to increase the efficiency of the treatment of acute ethanol intoxication in patients with alcoholic fatty liver disease. The article presents the results which received during the investigation and treatment of 166 patients with acute ethanol in- toxication on the background of alcoholic fatty liver disease Patients were assessed by the severity scale APACHE-Il. Were studied the dynamics of clinical, laboratory, biochemical parameters, the state of the antioxidant system activity and lipid peroxidation. The study found the effect of the combination hepatoprotective drug remaxol on the many links of metabolism, which was confirmed by the dynamics of biochemical parameters. There was a quick correction of hyperlactatemia, an effective reduction of ALT activity, the absence of reduction of albumin and urea concentration in the somatic period of ethanol poisoning. Period of using remaxol there was improvement in the clinical course of the disease, which manifested by the reduce the incidence of delirium tremens and shorten the duration of treatment of patients.
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49
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Abstract
Inflammation contributes to the pathogenesis of most acute and chronic liver diseases. Inflammasomes are multiprotein complexes that can sense danger signals from damaged cells and pathogens and assemble to mediate caspase-1 activation, which proteolytically activates the cytokines IL-1β and IL-18. In contrast to other inflammatory responses, inflammasome activation uniquely requires two signals to induce inflammation, therefore setting an increased threshold. IL-1β, generated upon caspase-1 activation, provides positive feed-forward stimulation for inflammatory cytokines, thereby amplifying inflammation. Inflammasome activation has been studied in different human and experimental liver diseases and has been identified as a major contributor to hepatocyte damage, immune cell activation and amplification of liver inflammation. In this Review, we discuss the different types of inflammasomes, their activation and biological functions in the context of liver injury and disease progression. Specifically, we focus on the triggers of inflammasome activation in alcoholic steatohepatitis and NASH, chronic HCV infection, ischaemia-reperfusion injury and paracetamol-induced liver injury. The application and translation of these discoveries into therapies promises novel approaches in the treatment of inflammation in liver disease.
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Affiliation(s)
- Gyongyi Szabo
- Department of Medicine, University of Massachusetts Medical School, LRB 215, 364 Plantation Street, Worcester, MA 01605, USA
| | - Jan Petrasek
- Department of Medicine, University of Massachusetts Medical School, LRB 215, 364 Plantation Street, Worcester, MA 01605, USA
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50
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Xu J, Chi F, Guo T, Punj V, Lee WNP, French SW, Tsukamoto H. NOTCH reprograms mitochondrial metabolism for proinflammatory macrophage activation. J Clin Invest 2015; 125:1579-90. [PMID: 25798621 DOI: 10.1172/jci76468] [Citation(s) in RCA: 168] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 02/09/2015] [Indexed: 12/20/2022] Open
Abstract
Metabolic reprogramming is implicated in macrophage activation, but the underlying mechanisms are poorly understood. Here, we demonstrate that the NOTCH1 pathway dictates activation of M1 phenotypes in isolated mouse hepatic macrophages (HMacs) and in a murine macrophage cell line by coupling transcriptional upregulation of M1 genes with metabolic upregulation of mitochondrial oxidative phosphorylation and ROS (mtROS) to augment induction of M1 genes. Enhanced mitochondrial glucose oxidation was achieved by increased recruitment of the NOTCH1 intracellular domain (NICD1) to nuclear and mitochondrial genes that encode respiratory chain components and by NOTCH-dependent induction of pyruvate dehydrogenase phosphatase 1 (Pdp1) expression, pyruvate dehydrogenase activity, and glucose flux to the TCA cycle. As such, inhibition of the NOTCH pathway or Pdp1 knockdown abrogated glucose oxidation, mtROS, and M1 gene expression. Conditional NOTCH1 deficiency in the myeloid lineage attenuated HMac M1 activation and inflammation in a murine model of alcoholic steatohepatitis and markedly reduced lethality following endotoxin-mediated fulminant hepatitis in mice. In vivo monocyte tracking further demonstrated the requirement of NOTCH1 for the migration of blood monocytes into the liver and subsequent M1 differentiation. Together, these results reveal that NOTCH1 promotes reprogramming of mitochondrial metabolism for M1 macrophage activation.
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MESH Headings
- Animals
- Cell Line
- Electron Transport/genetics
- Endotoxemia/complications
- Fatty Liver, Alcoholic/immunology
- Fatty Liver, Alcoholic/metabolism
- Fatty Liver, Alcoholic/pathology
- Feedback, Physiological
- Gene Expression Regulation
- Glucose/metabolism
- Inflammation/immunology
- Inflammation/metabolism
- Liver Failure, Acute/etiology
- Liver Failure, Acute/immunology
- Liver Failure, Acute/metabolism
- Liver Failure, Acute/pathology
- Macrophage Activation/genetics
- Macrophage Activation/physiology
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mitochondria/metabolism
- Myeloid Cells/metabolism
- Myeloid Cells/pathology
- Nitric Oxide/metabolism
- Oxidative Phosphorylation
- Protein Structure, Tertiary
- Pyruvate Dehydrogenase (Lipoamide)-Phosphatase/antagonists & inhibitors
- Pyruvate Dehydrogenase (Lipoamide)-Phosphatase/genetics
- Pyruvate Dehydrogenase (Lipoamide)-Phosphatase/metabolism
- Pyruvate Dehydrogenase Complex/metabolism
- Reactive Oxygen Species/metabolism
- Receptor, Notch1/deficiency
- Receptor, Notch1/physiology
- Signal Transduction/physiology
- Transcription, Genetic
- Up-Regulation
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