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Somabattini RA, Sherin S, Siva B, Chowdhury N, Nanjappan SK. Unravelling the complexities of non-alcoholic steatohepatitis: The role of metabolism, transporters, and herb-drug interactions. Life Sci 2024; 351:122806. [PMID: 38852799 DOI: 10.1016/j.lfs.2024.122806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/24/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a mainstream halting liver disease with high prevalence in North America, Europe, and other world regions. It is an advanced form of NAFLD caused by the amassing of fat in the liver and can progress to the more severe form known as non-alcoholic steatohepatitis (NASH). Until recently, there was no authorized pharmacotherapy reported for NASH, and to improve the patient's metabolic syndrome, the focus is mainly on lifestyle modification, weight loss, ensuring a healthy diet, and increased physical activity; however, the recent approval of Rezdiffra (Resmetirom) by the US FDA may change this narrative. As per the reported studies, there is an increased articulation of uptake and efflux transporters of the liver, including OATP and MRP, in NASH, leading to changes in the drug's pharmacokinetic properties. This increase leads to alterations in the pharmacokinetic properties of drugs. Furthermore, modifications in Cytochrome P450 (CYP) enzymes can have a significant impact on these properties. Xenobiotics are metabolized primarily in the liver and constitute liver enzymes and transporters. This review aims to delve into the role of metabolism, transport, and potential herb-drug interactions in the context of NASH.
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Affiliation(s)
- Ravi Adinarayan Somabattini
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, 168, Maniktala Main Road, Kolkata 700054, West Bengal, India
| | - Sahla Sherin
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, 168, Maniktala Main Road, Kolkata 700054, West Bengal, India
| | - Bhukya Siva
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, 168, Maniktala Main Road, Kolkata 700054, West Bengal, India
| | - Neelanjan Chowdhury
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, 168, Maniktala Main Road, Kolkata 700054, West Bengal, India
| | - Satheesh Kumar Nanjappan
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, 168, Maniktala Main Road, Kolkata 700054, West Bengal, India.
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Yong Q, Huang C, Chen B, An J, Zheng Y, Zhao L, Peng C, Liu F. Gentiopicroside improves NASH and liver fibrosis by suppressing TLR4 and NLRP3 signaling pathways. Biomed Pharmacother 2024; 177:116952. [PMID: 38917754 DOI: 10.1016/j.biopha.2024.116952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/10/2024] [Accepted: 06/15/2024] [Indexed: 06/27/2024] Open
Abstract
BACKGROUND Non-alcoholic steatohepatitis (NASH) and liver fibrosis are progressive conditions associated with non-alcoholic fatty liver disease (NAFLD), characterized by hepatocyte pyroptosis and hepatic stellate cell (HSC) activation. Gentiopicroside (GPS) has emerged as a potential treatment for NASH, yet its underlying mechanism remains unclear. AIM To confirm that GPS can improve NASH and liver fibrosis by blocking the NLRP3 signaling pathway STUDY DESIGN: Initially, different animal models were used to study the effects and mechanisms of GPS on NASH and fibrosis. Subsequent in vitro experiments utilized co-cultures and other techniques to delve deeper into its mechanism, followed by validation of the findings in mouse liver tissues. METHODS C57BL/6 mice were fed high-fat, high-cholesterol (HFHC), or methionine-choline-deficient (MCD) diets to induce NASH and fibrosis. RAW264.7 cells and born marrow bone marrow-derived macrophages (BMDMs) were stimulated with LPS and ATP to induce inflammation, then co-cultured with primary hepatocytes and HSCs, treated with GPS, and its efficacy and mechanism were analyzed. RESULTS In vivo, GPS alleviated NASH and liver fibrosis by inhibiting the NLRP3 pathway. In vitro, GPS attenuated inflammation induced by BMDMs by inhibiting TLR4 and NLRP3 signaling pathways, and Co-culture studies suggested that GPS reduced hepatocyte pyroptosis and HSC activation, which was also confirmed in liver tissues CONCLUSION: GPS improves NASH and liver fibrosis by inhibiting the TLR4 and NLRP3 signaling pathways. The specific mechanism may be related to the suppression of macrophage-mediated inflammatory responses, thereby reducing hepatocyte pyroptosis and HSC activation.
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Affiliation(s)
- Qiuhong Yong
- The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chaoyuan Huang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bonan Chen
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China; Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Hong Kong SAR, China; State Key Laboratory of Translational Oncology, Sir Y.K. Pao Cancer Center, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jinqi An
- The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yiyuan Zheng
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lina Zhao
- Department of Hepatobiliary of The First Affiliated Hospital of Guangzhou University of Chinese Medicine, State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou, China
| | - Chong Peng
- Lingnan Medical Research Center, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China; Department of Hepatobiliary of The First Affiliated Hospital of Guangzhou University of Chinese Medicine, State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou, China
| | - Fengbin Liu
- Baiyun Hospital of The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Institute of Spleen and Stomach Diseases, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
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Makri ES, Xanthopoulos K, Mavrommatis Parasidis P, Makri E, Pettas S, Tsingotjidou A, Cheva A, Ballaouri I, Gerou S, Goulas A, Polyzos SA. Partial validation of a six-month high-fat diet and fructose-glucose drink combination as a mouse model of nonalcoholic fatty liver disease. Endocrine 2024; 85:704-716. [PMID: 38507181 PMCID: PMC11291610 DOI: 10.1007/s12020-024-03769-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 02/29/2024] [Indexed: 03/22/2024]
Abstract
PURPOSE The need to investigate the pathogenesis and treatment of nonalcoholic fatty liver disease (NAFLD) has led to the development of multiple mouse models. The aim of this study was to validate a fast food diet (FFD) mouse model that is introduced as being close to the human disease. METHODS Eight to nine weeks old male and female C57BL/6 J mice were randomly allocated to a FFD group or to a chow diet (CD) group. Every four weeks, mice were weighed, and blood samples were collected for the measurement of glucose, alanine aminotransferase (ALT), aspartate aminotransferase (AST), triglycerides (TGs) and total cholesterol. After 25 weeks, mice were sacrificed, and liver tissue was histologically evaluated. RESULTS FFD mice gained more weight (p = 0.049) and presented a higher liver-to-body weight ratio (p < 0.001) compared to CD mice. FFD group presented with greater steatosis, hepatocellular ballooning and NAFLD activity score (NAS), whereas lobular inflammation and fibrosis were not significantly different compared to CD. When stratified by sex, NAS was different between FFD and CD groups in both male and female mice. Group by time interaction was significant for weight, ALT and cholesterol, but not for glucose, AST and TGs. CONCLUSION FFD mice presented with morphologic and biochemical features of NAFLD and with greater hepatic steatosis, hepatocellular ballooning and NAS, but not lobular inflammation and fibrosis, compared to CD mice. These results only partly validate the FFD mouse model for NAFLD, at least for a 6-month feeding period.
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Affiliation(s)
- Evangelia S Makri
- First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Konstantinos Xanthopoulos
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Institute of Applied Biosciences, Centre for Research and Technology, Thessaloniki, Greece
| | - Panagiotis Mavrommatis Parasidis
- Laboratory of Anatomy, Histology & Embryology, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleftheria Makri
- First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Spyros Pettas
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia Tsingotjidou
- Laboratory of Anatomy, Histology & Embryology, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Angeliki Cheva
- Department of Pathology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | | | - Antonis Goulas
- First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stergios A Polyzos
- First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Tang M, Cao H, Ma Y, Yao S, Wei X, Tan Y, Liu F, Peng Y, Fan N. USP13 ameliorates nonalcoholic fatty liver disease through inhibiting the activation of TAK1. J Transl Med 2024; 22:671. [PMID: 39033101 PMCID: PMC11264885 DOI: 10.1186/s12967-024-05465-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 07/02/2024] [Indexed: 07/23/2024] Open
Abstract
BACKGROUND The molecular mechanisms underlying nonalcoholic fatty liver disease (NAFLD) remain to be fully elucidated. Ubiquitin specific protease 13 (USP13) is a critical participant in inflammation-related signaling pathways, which are linked to NAFLD. Herein, the roles of USP13 in NAFLD and the underlying mechanisms were investigated. METHODS L02 cells and mouse primary hepatocytes were subjected to free fatty acid (FFA) to establish an in vitro model reflective of NAFLD. To prepare in vivo model of NAFLD, mice fed a high-fat diet (HFD) for 16 weeks and leptin-deficient (ob/ob) mice were used. USP13 overexpression and knockout (KO) strategies were employed to study the function of USP13 in NAFLD in mice. RESULTS The expression of USP13 was markedly decreased in both in vitro and in vivo models of NAFLD. USP13 overexpression evidently inhibited lipid accumulation and inflammation in FFA-treated L02 cells in vitro. Consistently, the in vivo experiments showed that USP13 overexpression ameliorated hepatic steatosis and metabolic disorders in HFD-fed mice, while its deficiency led to contrary outcomes. Additionally, inflammation was similarly attenuated by USP13 overexpression and aggravated by its deficiency in HFD-fed mice. Notably, overexpressing of USP13 also markedly alleviated hepatic steatosis and inflammation in ob/ob mice. Mechanistically, USP13 bound to transforming growth factor β-activated kinase 1 (TAK1) and inhibited K63 ubiquitination and phosphorylation of TAK1, thereby dampening downstream inflammatory pathways and promoting insulin signaling pathways. Inhibition of TAK1 activation reversed the exacerbation of NAFLD caused by USP13 deficiency in mice. CONCLUSIONS Our findings indicate the protective role of USP13 in NAFLD progression through its interaction with TAK1 and inhibition the ubiquitination and phosphorylation of TAK1. Targeting the USP13-TAK1 axis emerges as a promising therapeutic strategy for NAFLD treatment.
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Affiliation(s)
- Min Tang
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Han Cao
- Department of Endocrinology and Metabolism, Shanghai General Hospital of Nanjing Medical University, Shanghai, China
- Department of Endocrinology, Songjiang District Central Hospital, Shanghai, China
| | - Yunqin Ma
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuangshuang Yao
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaohui Wei
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yijiong Tan
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fang Liu
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongde Peng
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Department of Endocrinology and Metabolism, Shanghai General Hospital of Nanjing Medical University, Shanghai, China.
| | - Nengguang Fan
- Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Parsa S, Dousti M, Mohammadi N, Abedanzadeh M, Dehdari Ebrahimi N, Dara M, Sani M, Nekouee M, Abolmaali SS, Sani F, Azarpira N. The effects of simvastatin-loaded nanoliposomes on human multilineage liver fibrosis microtissue. J Cell Mol Med 2024; 28:e18529. [PMID: 38984945 PMCID: PMC11234647 DOI: 10.1111/jcmm.18529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/09/2024] [Accepted: 06/23/2024] [Indexed: 07/11/2024] Open
Abstract
In this in vitro study, for the first time, we evaluate the effects of simvastatin-loaded liposome nanoparticles (SIM-LipoNPs) treatment on fibrosis-induced liver microtissues, as simvastatin (SIM) has shown potential benefits in the non-alcoholic fatty liver disease process. We developed multicellular liver microtissues composed of hepatic stellate cells, hepatoblastoma cells and human umbilical vein endothelial cells. The microtissues were supplemented with a combination of palmitic acid and oleic acid to develop fibrosis models. Subsequently, various groups of microtissues were exposed to SIM and SIM-LipoNPs at doses of 5 and 10 mg/mL. The effectiveness of the treatments was evaluated by analysing cell viability, production of reactive oxygen species (ROS) and nitric oxide (NO), the expression of Kruppel-like factor (KLF) 2, and pro-inflammatory cytokines (interleukin(IL)-1 α, IL-1 β, IL-6 and tumour necrosis factor-α), and the expression of collagen I. Our results indicated that SIM-LipoNPs application showed promising results. SIM-LipoNPs effectively amplified the SIM-klf2-NO pathway at a lower dosage compatible with a high dosage of free SIM, which also led to reduced oxidative stress by decreasing ROS levels. SIM-LipoNPs administration also resulted in a significant reduction in pro-inflammatory cytokines and Collagen I mRNA levels, as a marker of fibrosis. In conclusion, our study highlights the considerable therapeutic potential of using SIM-LipoNPs to prevent liver fibrosis progress, underscoring the remarkable properties of SIM-LipoNPs in activating the KLF2-NO pathway and anti-oxidative and anti-inflammatory response.
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Affiliation(s)
- Shima Parsa
- Shiraz Institute for Stem Cell & Regenerative Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Dousti
- Shiraz Institute for Stem Cell & Regenerative Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nasim Mohammadi
- Shiraz Institute for Stem Cell & Regenerative Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mozhgan Abedanzadeh
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Mahintaj Dara
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahsa Sani
- Shiraz Institute for Stem Cell & Regenerative Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Muhammad Nekouee
- Shiraz Institute for Stem Cell & Regenerative Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Samira Sadat Abolmaali
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farnaz Sani
- Shiraz Institute for Stem Cell & Regenerative Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Koch RL, Stanton JB, McClatchy S, Churchill GA, Craig SW, Williams DN, Johns ME, Chase KR, Thiesfeldt DL, Flynt JC, Pazdro R. Discovery of genomic loci for liver health and steatosis reveals overlap with glutathione redox genetics. Redox Biol 2024; 75:103248. [PMID: 38917671 PMCID: PMC11254179 DOI: 10.1016/j.redox.2024.103248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/27/2024] [Accepted: 06/18/2024] [Indexed: 06/27/2024] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver condition in the United States, encompassing a wide spectrum of liver pathologies including steatosis, steatohepatitis, fibrosis, and cirrhosis. Despite its high prevalence, there are no medications currently approved by the Food and Drug Administration for the treatment of NAFLD. Recent work has suggested that NAFLD has a strong genetic component and identifying causative genes will improve our understanding of the molecular mechanisms contributing to NAFLD and yield targets for future therapeutic investigations. Oxidative stress is known to play an important role in NAFLD pathogenesis, yet the underlying mechanisms accounting for disturbances in redox status are not entirely understood. To better understand the relationship between the glutathione redox system and signs of NAFLD in a genetically-diverse population, we measured liver weight, serum biomarkers aspartate aminotransferase (AST) and alanine aminotransferase (ALT), and graded liver pathology in a large cohort of Diversity Outbred mice. We compared hepatic endpoints to those of the glutathione redox system previously measured in the livers and kidneys of the same mice, and we screened for statistical and genetic associations using the R/qtl2 software. We discovered several novel genetic loci associated with markers of liver health, including loci that were associated with both liver steatosis and glutathione redox status. Candidate genes within each locus point to possible new mechanisms underlying the complex relationship between NAFLD and the glutathione redox system, which could have translational implications for future studies targeting NAFLD pathology.
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Affiliation(s)
- Rebecca L Koch
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA, 30602
| | - James B Stanton
- Department of Pathology, University of Georgia, Athens, GA, USA, 30602
| | | | | | - Steven W Craig
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA, 30602
| | - Darian N Williams
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA, 30602
| | - Mallory E Johns
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA, 30602
| | - Kylah R Chase
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA, 30602
| | - Dana L Thiesfeldt
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA, 30602
| | - Jessica C Flynt
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA, 30602
| | - Robert Pazdro
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA, 30602.
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Fakhoury-Sayegh N, Hamdan A, Lebbos S, Itani T, Trak-Smayra V, Khazzaka A, Dagher-Hamalian C, Sayegh LN, Mallah M, Obeid O, Sayegh R. Spirulina ( Arthrospira platensis) Improved Nonalcoholic Fatty Liver Disease Characteristics and Microbiota and Did Not Affect Organ Fibrosis Induced by a Fructose-Enriched Diet in Wistar Male Rats. Nutrients 2024; 16:1701. [PMID: 38892633 PMCID: PMC11174493 DOI: 10.3390/nu16111701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 05/06/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
Spirulina (Arthrospira platensis) is reported to play a role in improving nonalcoholic fatty liver disease (NAFLD) and intestinal microbiota (IM). To study spirulina's effects in the improvement of NAFLD characteristics, IM, and pancreatic-renal lesions induced by a fructose-enriched diet, 40 Wistar healthy male rats, weighing 200-250 g, were randomly divided into four groups of 10, and each rat per group was assigned a diet of equal quantities (20 g/day) for 18 weeks. The first control group (CT) was fed a standardized diet, the second group received a 40% fructose-enriched diet (HFr), and the third (HFr-S5) and fourth groups (HFr-S10) were assigned the same diet composition as the second group but enriched with 5% and 10% spirulina, respectively. At week 18, the HFr-S10 group maintained its level of serum triglycerides and had the lowest liver fat between the groups. At the phylae and family level, and for the same period, the HFr-S10 group had the lowest increase in the Firmicutes/Bacteroidetes ratio and the Ruminococcaceae and the highest fecal alpha diversity compared to all other groups (p < 0.05). These findings suggest that at a 10% concentration, spirulina could be used in nutritional intervention to improve IM, fatty liver, metabolic, and inflammatory parameters associated with NAFLD.
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Affiliation(s)
- Nicole Fakhoury-Sayegh
- Department of Nutrition, Faculty of Pharmacy, Saint Joseph University, Damascus Street, Beirut P.O. Box 11-5076, Lebanon;
| | - Aya Hamdan
- Department of Human Nutrition, College of Health Sciences, QU-Health, Qatar University, Doha 2713, Qatar;
| | - Sarah Lebbos
- Department of Nutrition, Faculty of Pharmacy, Saint Joseph University, Damascus Street, Beirut P.O. Box 11-5076, Lebanon;
| | - Tarek Itani
- Laboratory of Enteric Virus Infections, Federal Budgetary Institution of Science Federal Scientific Research Institute of Viral Infections «Virome», Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, 620030 Yekaterinburg, Russia;
| | - Viviane Trak-Smayra
- Department of Pathology, Faculty of Medicine, Saint Joseph University, Damascus Street, Beirut P.O. Box 11-5076, Lebanon;
| | - Aline Khazzaka
- Department of Surgical Research, Faculty of Medicine, Saint Joseph University, Damascus Street, Beirut P.O. Box 11-5076, Lebanon;
| | - Carole Dagher-Hamalian
- Department of Pathology, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos P.O. Box 36, Lebanon;
| | - Lea Nicole Sayegh
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55902, USA;
| | - May Mallah
- Department of Microbiology Research, Faculty of Pharmacy, Saint Joseph University, Damascus Street, Beirut P.O. Box 11-5076, Lebanon;
| | - Omar Obeid
- Department of Nutrition and Food Sciences, Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut P.O. Box 11-0236, Lebanon;
| | - Raymond Sayegh
- Department of Gastroenterology, Faculty of Medicine, Saint Joseph University, Damascus Street, Beirut P.O. Box 11-5076, Lebanon;
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Kim ES, Lee JM, Kwak JY, Lee HW, Lee IJ, Kim HM. Multicolor Two-Photon Microscopy Imaging of Lipid Droplets and Liver Capsule Macrophages In Vivo. Anal Chem 2024; 96:8467-8473. [PMID: 38723271 DOI: 10.1021/acs.analchem.4c00228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Lipid droplets (LDs) store energy and supply fatty acids and cholesterol. LDs are a hallmark of chronic nonalcoholic fatty liver disease (NAFLD). Recently, studies have focused on the role of hepatic macrophages in NAFLD. Green fluorescent protein (GFP) is used for labeling the characteristic targets in bioimaging analysis. Cx3cr1-GFP mice are widely used in studying the liver macrophages such as the NAFLD model. Here, we have developed a tool for two-photon microscopic observation to study the interactions between LDs labeled with LD2 and liver capsule macrophages labeled with GFP in vivo. LD2, a small-molecule two-photon excitation fluorescent probe for LDs, exhibits deep-red (700 nm) fluorescence upon excitation at 880 nm, high cell staining ability and photostability, and low cytotoxicity. This probe can clearly observe LDs through two-photon microscopy (TPM) and enables the simultaneous imaging of GFP+ liver capsule macrophages (LCMs) in vivo in the liver capsule of Cx3cr1-GFP mice. In the NAFLD mouse model, Cx3cr1+ LCMs and LDs increased with the progress of fatty liver disease, and spatiotemporal changes in LCMs were observed through intravital 3D TPM images. LD2 will aid in studying the interactions and immunological roles of hepatic macrophages and LDs to better understand NAFLD.
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Affiliation(s)
- Eun Seo Kim
- Department of Energy Systems Research and Department of Chemistry, Ajou University, Suwon 16499, Korea
| | - Jeong-Mi Lee
- Three-Dimensional Immune System Imaging Core Facility, Ajou University, Suwon 16499, Korea
| | - Jong-Young Kwak
- Three-Dimensional Immune System Imaging Core Facility, Ajou University, Suwon 16499, Korea
- Department of Pharmacology, School of Medicine, Ajou University, Suwon 16499, Korea
| | - Hyo Won Lee
- Department of Energy Systems Research and Department of Chemistry, Ajou University, Suwon 16499, Korea
| | - In-Jeong Lee
- Three-Dimensional Immune System Imaging Core Facility, Ajou University, Suwon 16499, Korea
| | - Hwan Myung Kim
- Department of Energy Systems Research and Department of Chemistry, Ajou University, Suwon 16499, Korea
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Sidorova YS, Petrov NA, Markova YM, Kolobanov AI, Zorin SN. The Influence of a High-Cholesterol Diet and Forced Training on Lipid Metabolism and Intestinal Microbiota in Male Wistar Rats. Int J Mol Sci 2024; 25:5383. [PMID: 38791421 PMCID: PMC11121228 DOI: 10.3390/ijms25105383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 05/06/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Adequate experimental animal models play an important role in an objective assessment of the effectiveness of medicines and functional foods enriched with biologically active substances. The aim of our study was a comparative assessment of the effect of consumption of 1 or 2% cholesterol with and without regular (two times a week), moderate running exercise on the main biomarkers of lipid and cholesterol metabolism, as well as the intestinal microbiota of male Wistar rats. In experimental rats, a response of 39 indicators (body weight, food consumption, serum biomarkers, liver composition, and changes in intestinal microbiota) was revealed. Total serum cholesterol level increased 1.8 times in animals consuming cholesterol with a simultaneous increase in low-density lipoprotein cholesterol (2 times) and decrease in high-density lipoprotein cholesterol (1.3 times) levels compared to the control animals. These animals had 1.3 times increased liver weight, almost 5 times increased triglycerides level, and more than 6 times increased cholesterol content. There was a tendency towards a decrease in triglycerides levels against the background of running exercise. The consumption of cholesterol led to a predominance of the Bacteroides family, due to a decrease in F. prausnitzii (1.2 times) and bifidobacteria (1.3 times), as well as an increase in Escherichia family (1.2 times). The running exercise did not lead to the complete normalization of microbiota.
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Affiliation(s)
- Yuliya S. Sidorova
- Federal Research Centre of Nutrition and Biotechnology, 109240 Moscow, Russia; (N.A.P.); (Y.M.M.); (A.I.K.); (S.N.Z.)
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Chen H, Shen H, Han J, Wang P, Song D, Shen H, Wei X, Yang B, Li J. Performance of ATT and UDFF in the diagnosis of non-alcoholic fatty liver: An animal experiment. Heliyon 2024; 10:e27993. [PMID: 38560108 PMCID: PMC10981026 DOI: 10.1016/j.heliyon.2024.e27993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/01/2024] [Accepted: 03/10/2024] [Indexed: 04/04/2024] Open
Abstract
Objective To establish a Bama minipigs model with Non-Alcoholic Fatty Liver (NAFL) induced by a high-fat diet and investigate the application of attenuation coefficient (ATT) and ultrasound-derived fat fraction (UDFF) in the diagnosis of NAFL. Methods Six-month-old male Bama minipigs were randomly divided into normal control and high-fat groups (n = 3 pigs per group), and fed with a control diet and high-fat diet for 32 weeks. Weight and body length were measured every four weeks, followed by quantitative ultrasound imaging (ATT and UDFF), blood biochemical markers, and liver biopsies on the same day. Using the Non-Alcoholic Fatty Liver Disease (NAFLD) Activity Score (NAS) as a reference, we analyzed the correlation between ATT, UDFF, and their score results. Results Compared with the normal control group, the body weight, body mass index (BMI), and serum levels of triglyceride (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) in the High-fat group were significantly different at Week 12 (P < 0.05). Spearman correlation analysis showed that the ATT value was significantly correlated with NAS score (r = 0.76, P < 0.001), and the UDFF value was significantly correlated with NAS score (r = 0.80, P < 0.001). The optimal cut-off value of ATT and UDFF were 0.59 dB/cm/MHz and 5.5%, respectively. These values are optimal for diagnosis of NAFL in Bama minipig model. Conclusion ATT and UDFF have a high correlation with steatosis, and can be used as a non-invasive method for early screening of hepatic steatosis, which can dynamically monitor the change of disease course.
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Affiliation(s)
- Huihui Chen
- Department of Ultrasound, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, China
| | - Huiming Shen
- Department of Ultrasound, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, China
| | - Jiahao Han
- Department of Ultrasound, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, China
| | - Pingping Wang
- Department of Ultrasound, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, China
| | - Danlei Song
- Department of Ultrasound, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, China
| | - Hongyuan Shen
- Department of Ultrasound, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, China
| | - Xiaoying Wei
- Department of Pathology, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, China
| | - Bingjie Yang
- Department of Ultrasound, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, China
| | - Jia Li
- Department of Ultrasound, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, China
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Song X, Sun J, Liu H, Mushtaq A, Huang Z, Li D, Zhang L, Chen F. Lycopene Alleviates Endoplasmic Reticulum Stress in Steatohepatitis through Inhibition of the ASK1-JNK Signaling Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:7832-7844. [PMID: 38544357 DOI: 10.1021/acs.jafc.3c08108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Lycopene has been proven to alleviate nonalcoholic steatohepatitis (NASH), but the precise mechanisms are inadequately elucidated. In this study, we found a previously unknown regulatory effect of lycopene on the apoptosis signal-regulating kinase 1 (ASK1) signaling pathway in both in vivo and in vitro models. Lycopene supplementation (3 and 6 mg/kg/day) exhibited a significant reduction in lipid accumulation, inflammation, and fibrosis of the liver in mice fed with a high-fat/high-cholesterol diet or a methionine-choline-deficient diet. RNA sequencing uncovered that the mitogen-activated protein kinases signaling pathway, which is closely associated with inflammation and endoplasmic reticulum (ER) stress, was significantly downregulated by lycopene. Furthermore, we found lycopene ameliorated ER swelling and decreased the expression levels of ER stress markers (i.e., immunoglobulin heavy chain binding protein, C/EBP homologous protein, and X-box binding protein 1s). Especially, the inositol-requiring enzyme 1α involved in the ASK1 phosphorylation was inhibited by lycopene, resulting in the decline of the subsequent c-Jun N-terminal kinase (JNK) signaling cascade. ASK1 inhibitor DQOP-1 eliminated the lycopene-induced inhibition of the ASK1-JNK pathway in oleic acid and palmitic acid-induced HepG2 cells. Molecular docking further indicated hydrophobic interactions between lycopene and ASK1. Collectively, our research indicates that lycopene can alleviate ER stress and attenuate inflammation cascades and lipid accumulation by inhibiting the ASK1-JNK pathway.
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Affiliation(s)
- Xunyu Song
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Jun Sun
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Hanxiong Liu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China
| | - Aroosa Mushtaq
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Zhoumei Huang
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Daotong Li
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Lujia Zhang
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Fang Chen
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 100083, China
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12
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Li J, Zhang Y, Ma X, Liu R, Xu C, He Q, Dong M. Identification and validation of cuproptosis-related genes for diagnosis and therapy in nonalcoholic fatty liver disease. Mol Cell Biochem 2024:10.1007/s11010-024-04957-7. [PMID: 38512536 DOI: 10.1007/s11010-024-04957-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 02/03/2024] [Indexed: 03/23/2024]
Abstract
In recent years, nonalcoholic fatty liver disease (NAFLD) has become a more serious public health issue worldwide. This study strived to investigate the molecular mechanism of pathogenesis of NAFLD and explore promising diagnostic and therapeutic targets for NAFLD. Raw data from GSE130970 were downloaded from the Gene Expression Omnibus database. We used the dataset to analyze the expression levels of cuproptosis-related genes in NAFLD patients and healthy controls to identify the differentially expressed cuproptosis-related genes (DECRGs). The relationship and potential mechanism between DECRGs and clinicopathological factors were examined by enrichment analysis and two consensus clustering methods. We screened key DECRGs based on Random Forest (RF), and then verified the key DECRGs in NAFLD patients, high-fat diet (HFD)-fed mice, and palmitic acid-induced AML12 cells. ROC analysis showed good diagnostic function of DECRGs in normal and NAFLD liver tissue. Two consensus clusters indicated the important role of cuproptosis in the development of NAFLD. We screened for key DECRGs (DLD, DLAT) based on RF and found a close relationship between the DECRGs and clinicopathological factors. We collected clinical blood samples to verify the differences in gene expression levels by qPCR. In addition, we further verified the expression levels of DLD and DLAT in HFD mice and AML12 cells, which showed the same results. This study provides a novel perspective on the pathogenesis of NAFLD. We identified two cuproptosis-related genes that are closely related to NAFLD. These genes may play a significant role in the molecular pathogenesis of NAFLD, which may be useful to make progress in the diagnosis and treatment of NAFLD.
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Affiliation(s)
- Jinquan Li
- Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yi Zhang
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiaohan Ma
- Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Ruiqi Liu
- Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Cuicui Xu
- Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Qin He
- Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, Shandong, China.
- Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, Shandong, China.
- Jinan Clinical Research Center for Endocrine and Metabolic Disease, Jinan, Shandong, China.
- Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, Shandong, China.
| | - Ming Dong
- Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, Shandong, China.
- Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, Shandong, China.
- Jinan Clinical Research Center for Endocrine and Metabolic Disease, Jinan, Shandong, China.
- Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, Shandong, China.
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Yang J, Dai M, Wang Y, Yan Z, Mao S, Liu A, Lu C. A CDAHFD-induced mouse model mimicking human NASH in the metabolism of hepatic phosphatidylcholines and acyl carnitines. Food Funct 2024; 15:2982-2995. [PMID: 38411344 DOI: 10.1039/d3fo05111k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Non-alcoholic steatohepatitis (NASH) is the hepatic manifestation of a cluster of conditions associated with lipid metabolism disorders. Ideal animal models mimicking the human NASH need to be explored to better understand the pathogenesis. A choline-deficient, L-amino acid-defined, high-fat diet (CDAHFD) has recently been used to induce the NASH model, but the advantages are not established. NASH models were induced using the well-known traditional methionine- and choline-deficient (MCD) diet for 5 weeks and the recently used CDAHFD for 3 weeks. Liver phenotypes were analyzed to evaluate the differences in markers related to NASH. Lipidomics and metabolism analyses were used to investigate the effects of dietary regimens on the lipidome of the liver. The CDAHFD induced stronger NASH responses than the MCD, including lipid deposition, liver injury, inflammation, bile acid overload and hepatocyte proliferation. A significant difference in the hepatic lipidome was revealed between the CDAHFD and MCD-induced NASH models. In particular, the CDAHFD reduced the hepatic levels of phosphatidylcholines (PCs) and acylcarnitines (ACs), which was supported by the metabolism analysis and in line with the tendency of human NASH. Pathologically, the CDAHFD could effectively induce a more human-like NASH model over the traditional MCD. The hepatic PCs, ACs and their metabolism in CDAHFD-treated mice were down-regulated, similar to those in human NASH.
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Affiliation(s)
- Jie Yang
- Department of Hepatopancreatobiliary Surgery, The Affiliated Lihuili Hospital of Ningbo University, Ningbo, Zhejiang, 315040, China.
| | - Manyun Dai
- Zhejiang Key Laboratory of Pathophysiology, Department of Physiology and Pharmacology, Health Science Centre, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Ying Wang
- Zhejiang Key Laboratory of Pathophysiology, Department of Physiology and Pharmacology, Health Science Centre, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Zheng Yan
- Zhejiang Key Laboratory of Pathophysiology, Department of Physiology and Pharmacology, Health Science Centre, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Shuqi Mao
- Department of Hepatopancreatobiliary Surgery, The Affiliated Lihuili Hospital of Ningbo University, Ningbo, Zhejiang, 315040, China.
| | - Aiming Liu
- Zhejiang Key Laboratory of Pathophysiology, Department of Physiology and Pharmacology, Health Science Centre, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Caide Lu
- Department of Hepatopancreatobiliary Surgery, The Affiliated Lihuili Hospital of Ningbo University, Ningbo, Zhejiang, 315040, China.
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Kjærgaard K, Daugaard Mikkelsen AC, Landau AM, Eriksen PL, Hamilton-Dutoit S, Magnusson NE, Thomsen MB, Chen F, Vilstrup H, Mookerjee RP, Bay-Richter C, Thomsen KL. Cognitive dysfunction in early experimental metabolic dysfunction-associated steatotic liver disease is associated with systemic inflammation and neuroinflammation. JHEP Rep 2024; 6:100992. [PMID: 38415019 PMCID: PMC10897893 DOI: 10.1016/j.jhepr.2023.100992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 11/09/2023] [Accepted: 12/08/2023] [Indexed: 02/29/2024] Open
Abstract
Background & Aims Cognitive dysfunction is an increasingly recognised manifestation of metabolic dysfunction-associated steatotic liver disease (MASLD), but the mechanistic link remains unclear. The aim of this study was to investigate the hypothesis that experimental MASLD leads to cognitive dysfunction via systemic inflammation and neuroinflammation. Methods Twenty male Sprague Dawley rats were randomised to a high-fat high-cholesterol (HFHC) diet to induce MASLD, or a standard diet (n = 10/group), for 16 weeks. Assessments included: MASLD severity (histology), neurobehaviour, inflammation (liver, plasma and cerebrospinal fluid), brain microglia and astrocyte activation, and synaptic density. Results The HFHC diet induced MASLD with extensive steatosis and lobular inflammation without fibrosis. Several plasma cytokines were elevated (CXCL1, IL-6, IL-17, MIP-1α, MCP-1, IL-10; all p <0.05) and correlated with increases in hepatic chemokine gene expression. Cerebrospinal fluid concentrations of CXCL1 were elevated (p = 0.04). In the prefrontal brain cortex, we observed a 19% increase in microglial activation confirmed by Iba1 immunohistochemistry (p = 0.03) and 3H-PK11195 autoradiography (p <0.01). In parallel, synaptic density was reduced to 92%, assessed by 3H-UCB-J autoradiography (p <0.01). MASLD animals exhibited impaired memory to previously encountered objects in the novel object recognition test (p = 0.047) and showed depression-like behaviour evidenced by increased immobility time (p <0.01) and reduced swimming time (p = 0.03) in the forced swim test. Conclusions Experimental non-fibrotic MASLD, as a model to reflect the early stage of human disease, results in cognitive impairment and depression-like behaviour. This is associated with an inflammatory phenotype not only in the liver but also in the plasma and brain, which together with diminished synaptic density, provides a pathophysiological link between liver disease and cognitive dysfunction in MASLD. Impact and implications Cognitive dysfunction is an increasingly recognised comorbidity in patients with metabolic dysfunction-associated steatotic liver disease (MASLD), yet the underlying mechanisms remain unclear. This study provides evidence of impaired memory and depression-like symptoms in early experimental MASLD and indicates that hepatic inflammation may drive a systemic inflammatory response, resulting in neuroinflammation and reduced brain synaptic density. The evidence of impaired memory in MASLD and establishing its underlying pathophysiological link provides insights that could guide the development of potential new treatments for this increasingly common condition in people of working age. The study also emphasises the need to develop better tools for clinical cognitive testing, which will enable physicians to assess and manage brain dysfunction early in MASLD.
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Affiliation(s)
- Kristoffer Kjærgaard
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Denmark
- Department of Emergency Medicine, Horsens Regional Hospital, Denmark
| | | | - Anne M. Landau
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Denmark
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Denmark
| | - Peter Lykke Eriksen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Denmark
| | | | - Nils Erik Magnusson
- Medical Research Laboratory, Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Denmark
| | - Majken Borup Thomsen
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Denmark
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Denmark
| | - Fenghua Chen
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Denmark
| | - Hendrik Vilstrup
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Denmark
| | - Rajeshwar Prosad Mookerjee
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Denmark
- Institute for Liver and Digestive Health, University College London, United Kingdom
| | - Cecilie Bay-Richter
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Denmark
| | - Karen Louise Thomsen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Denmark
- Institute for Liver and Digestive Health, University College London, United Kingdom
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15
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Montero-Vallejo R, Maya-Miles D, Ampuero J, Martín F, Romero-Gómez M, Gallego-Durán R. Novel insights into metabolic-associated steatotic liver disease preclinical models. Liver Int 2024; 44:644-662. [PMID: 38291855 DOI: 10.1111/liv.15830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 12/02/2023] [Accepted: 12/18/2023] [Indexed: 02/01/2024]
Abstract
Metabolic-associated steatotic liver disease (MASLD) encompasses a wide spectrum of metabolic conditions associated with an excess of fat accumulation in the liver, ranging from simple hepatic steatosis to cirrhosis and hepatocellular carcinoma. Finding appropriate tools to study its development and progression is essential to address essential unmet therapeutic and staging needs. This review discusses advantages and shortcomings of different dietary, chemical and genetic factors that can be used to mimic this disease and its progression in mice from a hepatic and metabolic point of view. Also, this review will highlight some additional factors and considerations that could have a strong impact on the outcomes of our model to end up providing recommendations and a checklist to facilitate the selection of the appropriate MASLD preclinical model based on clinical aims.
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Affiliation(s)
- Rocío Montero-Vallejo
- SeLiver Group, Instituto de Biomedicina de Sevilla/CSIC/Hospital Virgen del Rocío, Sevilla, Spain
- Hepatic and Digestive Diseases Networking Biomedical Research Centre (CIBERehd), Sevilla, Spain
| | - Douglas Maya-Miles
- SeLiver Group, Instituto de Biomedicina de Sevilla/CSIC/Hospital Virgen del Rocío, Sevilla, Spain
- Hepatic and Digestive Diseases Networking Biomedical Research Centre (CIBERehd), Sevilla, Spain
| | - Javier Ampuero
- SeLiver Group, Instituto de Biomedicina de Sevilla/CSIC/Hospital Virgen del Rocío, Sevilla, Spain
- Hepatic and Digestive Diseases Networking Biomedical Research Centre (CIBERehd), Sevilla, Spain
- Digestive Diseases Unit, Hospital Universitario Virgen Del Rocío, Sevilla, Spain
| | - Franz Martín
- Andalusian Center of Molecular Biology and Regenerative Medicine-CABIMER, University Pablo Olavide-University of Seville-CSIC, Seville, Spain
- Biomedical Research Network on Diabetes and Related Metabolic Diseases-CIBERDEM, Instituto de Salud Carlos III, Madrid, Spain
| | - Manuel Romero-Gómez
- SeLiver Group, Instituto de Biomedicina de Sevilla/CSIC/Hospital Virgen del Rocío, Sevilla, Spain
- Hepatic and Digestive Diseases Networking Biomedical Research Centre (CIBERehd), Sevilla, Spain
- Digestive Diseases Unit, Hospital Universitario Virgen Del Rocío, Sevilla, Spain
| | - Rocío Gallego-Durán
- SeLiver Group, Instituto de Biomedicina de Sevilla/CSIC/Hospital Virgen del Rocío, Sevilla, Spain
- Hepatic and Digestive Diseases Networking Biomedical Research Centre (CIBERehd), Sevilla, Spain
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Ahmed K, Choi HN, Park JS, Kim YG, Bae MK, Yim JE. Taurine supplementation alters gene expression profiles in white adipose tissue of obese C57BL/6J mice: Inflammation and lipid synthesis perspectives. Heliyon 2024; 10:e23288. [PMID: 38192788 PMCID: PMC10771985 DOI: 10.1016/j.heliyon.2023.e23288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 11/30/2023] [Accepted: 11/30/2023] [Indexed: 01/10/2024] Open
Abstract
This work aimed to identify the mechanisms by which taurine exerts its anti-obesity effects in the C57BL/6J ob/ob mice model and determine if taurine supplementation increases the amelioration of inflammation and lipogenesis linked genes in the adipose and liver tissues. Three groups of C57BL/6J mice were fed a standard chow diet for a period of 10 weeks the C57BL/6J normal group, the C57BL/6J ob/ob negative control group with no taurine intake and C57BL/6J ob/ob taurine group with taurine intake. Real time PCR was used to examine the gene expression profile in the experimental groups intrascapular brown adipose tissue (BAT), inguinal white adipose tissue (WAT) and liver. TNF-alpha, Ccl2, Adgre and illb genes that are associated with inflammation were found to have varying level of expression in the three tissues. In comparison to BAT and liver these genes were expressed at a much lower level in WAT, with enhanced serum adiponectin levels.
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Affiliation(s)
- Kainat Ahmed
- Interdisciplinary Program in Senior Human Ecology, Changwon National University, Changwon, Korea
| | - Ha-Neul Choi
- Department of Food and Nutrition, Changwon National University, Changwon, Korea
| | - Ji-sook Park
- Department of Food and Nutrition, Changwon National University, Changwon, Korea
| | - Yu-Gyeong Kim
- Department of Food and Nutrition, Changwon National University, Changwon, Korea
| | - Min Kyung Bae
- Interdisciplinary Program in Senior Human Ecology, Changwon National University, Changwon, Korea
- Department of Food and Nutrition, Changwon National University, Changwon, Korea
| | - Jung-Eun Yim
- Interdisciplinary Program in Senior Human Ecology, Changwon National University, Changwon, Korea
- Department of Food and Nutrition, Changwon National University, Changwon, Korea
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17
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Yang CR, Lin WJ, Shen PC, Liao PY, Dai YC, Hung YC, Lai HC, Mehmood S, Cheng WC, Ma WL. Phenotypic and metabolomic characteristics of mouse models of metabolic associated steatohepatitis. Biomark Res 2024; 12:6. [PMID: 38195587 PMCID: PMC10777576 DOI: 10.1186/s40364-023-00555-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 12/29/2023] [Indexed: 01/11/2024] Open
Abstract
BACKGROUND Metabolic associated steatohepatitis (MASH) is metabolic disease that may progress to cirrhosis and hepatocellular carcinoma. Mouse models of diet-induced MASH, which is characterized by the high levels of fats, sugars, and cholesterol in diets, are commonly used in research. However, mouse models accurately reflecting the progression of MASH in humans remain to be established. Studies have explored the potential use of serological metabolites as biomarkers of MASH severity in relation to human MASH. METHODS We performed a comparative analysis of three mouse models of diet-induced MASH in terms of phenotypic and metabolomic characteristics; MASH was induced using different diets: a high-fat diet; a Western diet; and a high-fat, high-cholesterol diet. Liver cirrhosis was diagnosed using standard clinical approaches (e.g., METAVIR score, hyaluronan level, and collagen deposition level). Mouse serum samples were subjected to nuclear magnetic resonance spectroscopy-based metabolomic profiling followed by bioinformatic analyses. Metabolomic analysis of a retrospective cohort of patients with hepatocellular carcinoma was performed; the corresponding cirrhosis scores were also evaluated. RESULTS Using clinically relevant quantitative diagnostic methods, the severity of MASH was evaluated. Regarding metabolomics, the number of lipoprotein metabolites increased with both diet and MASH progression. Notably, the levels of very low-density lipoprotein (VLDL) and low-density lipoprotein (LDL) significantly increased with fibrosis progression. During the development of diet-induced MASH in mice, the strongest upregulation of expression was noted for VLDL receptor. Metabolomic analysis of a retrospective cohort of patients with cirrhosis indicated lipoproteins (e.g., VLDL and LDL) as predominant biomarkers of cirrhosis. CONCLUSIONS Our findings provide insight into the pathophysiology and metabolomics of experimental MASH and its relevance to human MASH. The observed upregulation of lipoprotein expression reveals a feedforward mechanism for MASH development that may be targeted for the development of noninvasive diagnosis.
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Affiliation(s)
- Cian-Ru Yang
- Program for Health Science and Industry, Graduate Institute of Biomedical Sciences, and Department of Medicine, and Tumor Biology Center, School of Medicine, China Medical University, Taichung, Taiwan
- Department of Medical Research, Department of Gynecology and Obstetrics, and Department of Gastroenterology, China Medical University Hospital, Taichung, Taiwan
| | - Wen-Jen Lin
- Program for Health Science and Industry, Graduate Institute of Biomedical Sciences, and Department of Medicine, and Tumor Biology Center, School of Medicine, China Medical University, Taichung, Taiwan
- Department of Medical Research, Department of Gynecology and Obstetrics, and Department of Gastroenterology, China Medical University Hospital, Taichung, Taiwan
| | - Pei-Chun Shen
- Program for Health Science and Industry, Graduate Institute of Biomedical Sciences, and Department of Medicine, and Tumor Biology Center, School of Medicine, China Medical University, Taichung, Taiwan
- Department of Medical Research, Department of Gynecology and Obstetrics, and Department of Gastroenterology, China Medical University Hospital, Taichung, Taiwan
| | - Pei-Yin Liao
- Program for Health Science and Industry, Graduate Institute of Biomedical Sciences, and Department of Medicine, and Tumor Biology Center, School of Medicine, China Medical University, Taichung, Taiwan
- Department of Medical Research, Department of Gynecology and Obstetrics, and Department of Gastroenterology, China Medical University Hospital, Taichung, Taiwan
| | - Yuan-Chang Dai
- Department of Pathology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, Taiwan
| | - Yao-Ching Hung
- Department of Gynecology and Obstetrics, Asia University Hospital, Taichung, Taiwan
| | - Hsueh-Chou Lai
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
- Center for Digestive Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Shiraz Mehmood
- Program for Health Science and Industry, Graduate Institute of Biomedical Sciences, and Department of Medicine, and Tumor Biology Center, School of Medicine, China Medical University, Taichung, Taiwan
| | - Wei-Chung Cheng
- Program for Health Science and Industry, Graduate Institute of Biomedical Sciences, and Department of Medicine, and Tumor Biology Center, School of Medicine, China Medical University, Taichung, Taiwan.
| | - Wen-Lung Ma
- Program for Health Science and Industry, Graduate Institute of Biomedical Sciences, and Department of Medicine, and Tumor Biology Center, School of Medicine, China Medical University, Taichung, Taiwan.
- Department of Medical Research, Department of Gynecology and Obstetrics, and Department of Gastroenterology, China Medical University Hospital, Taichung, Taiwan.
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Wang Y, Bian X, Wan M, Dong W, Gao W, Yao Z, Guo C. Effects of riboflavin deficiency and high dietary fat on hepatic lipid accumulation: a synergetic action in the development of non-alcoholic fatty liver disease. Nutr Metab (Lond) 2024; 21:1. [PMID: 38169398 PMCID: PMC10763341 DOI: 10.1186/s12986-023-00775-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is characterized by excessive lipid accumulation in the liver. Riboflavin, one of water soluble vitamins, plays a role in lipid metabolism and antioxidant function. However, the effects of riboflavin deficiency on NAFLD development have not yet to be fully explored. METHODS In the present study, an animal model of NAFLD was induced by high fat diet feeding in mice and a cellular model of NAFLD was developed in HepG2 cells by palmitic acid (PA) exposure. The effects of riboflavin deficiency on lipid metabolism and antioxidant function were investigated both in vivo and in vitro. In addition, the possible role of peroxisome proliferator-activated receptor gamma (PPARγ) was studied in HepG2 cells using gene silencing technique. RESULTS The results showed that riboflavin deficiency led to hepatic lipid accumulation in mice fed high fat diet. The expressions of fatty acid synthase (FAS) and carnitine palmitoyltransferase 1 (CPT1) were up-regulated, whereas that of adipose triglyceride lipase (ATGL) down-regulated. Similar changes in response to riboflavin deficiency were demonstrated in HepG2 cells treated with PA. Factorial analysis revealed a significant interaction between riboflavin deficiency and high dietary fat or PA load in the development of NAFLD. Hepatic PPARγ expression was significantly upregulated in mice fed riboflavin deficient and high fat diet or in HepG2 cells treated with riboflavin deficiency and PA load. Knockdown of PPARγ gene resulted in a significant reduction of lipid accumulation in HepG2 cells exposed to riboflavin deficiency and PA load. CONCLUSIONS There is a synergetic action between riboflavin deficiency and high dietary fat on the development of NAFLD, in which PPARγ may play an important role.
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Affiliation(s)
- Yanxian Wang
- Institute of Environmental and Operational Medicine, Tianjin, 300050, People's Republic of China
| | - Xiangyu Bian
- Institute of Environmental and Operational Medicine, Tianjin, 300050, People's Republic of China
| | - Min Wan
- Institute of Environmental and Operational Medicine, Tianjin, 300050, People's Republic of China
| | - Weiyun Dong
- Institute of Environmental and Operational Medicine, Tianjin, 300050, People's Republic of China
| | - Weina Gao
- Institute of Environmental and Operational Medicine, Tianjin, 300050, People's Republic of China
| | - Zhanxin Yao
- Institute of Environmental and Operational Medicine, Tianjin, 300050, People's Republic of China
| | - Changjiang Guo
- Institute of Environmental and Operational Medicine, Tianjin, 300050, People's Republic of China.
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Mounika N, Yadav A, Kamboj P, Banerjee SK, Deka UJ, Kaur S, Adela R. Circulatory bone morphogenetic protein (BMP) 8B is a non-invasive predictive biomarker for the diagnosis of non-alcoholic steatohepatitis (NASH). PLoS One 2023; 18:e0295839. [PMID: 38127951 PMCID: PMC10734958 DOI: 10.1371/journal.pone.0295839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is a complex disease which is characterized by the deposition of fats in the hepatocytes. Further, it progresses to nonalcoholic steatohepatitis (NASH), fibrosis, and hepatocellular carcinoma. The increasing prevalence of NAFLD urges to find the non-invasive predictive biomarkers. In this study, we sought to determine increased BMP8B levels as predictors for the progression of NAFLD. METHODS In the present cross-sectional study, circulatory BMP8B levels were measured in healthy controls (n = 56), NAFL patients (n = 72) and NASH patients (n = 77) by using an ELISA kit. Human hepatic BMP8B mRNA expression was measured in the liver tissue of control and NASH patients. In addition, BMP8B expression was confirmed by immunohistochemistry analysis. Furthermore, hepatic BMP8B mRNA expression was measured in wild type (WT) mice, WT mice fed with choline deficient high fat diet (WT+CDHF), iNOS (inducible nitric oxide synthase) knockout (iNOS-/-) mice, iNOS-/- fed with CDHF diet (iNOS-/-+CDHF). RESULTS Increased circulatory BMP8B levels and BMP8B mRNA expression in hepatic tissue were significantly higher in NASH patients as compared with the control subjects. BMP8B expression was increased parallel to the fibrosis score in the hepatic tissues of NASH patients. It was observed that increased BMP8B levels have shown a significant positive correlation between aspartate aminotransferase (r = 0.31, p = 0.005), alanine aminotransferase (r = 0.23, p = 0.045), APRI (r = 0.30, p = 0.009), and Fib-4 score (r = 0.25, p = 0.036) in NASH patients. BMP8B has maintained a significant association with NASH and shown high sensitivity (92.91%) and specificity (92.73%) in NASH patients. Furthermore, increased BMP8B mRNA expression levels were observed in iNOS-/-+CDHF mice. CONCLUSION Our study findings confirmed that BMP8B increases with the severity of the disease and BMP8B shows potential as a non-invasive predictive biomarker to identify NAFLD progression. However, future studies should investigate circulatory BMP8B levels in a large number of patients and also its impact on liver during NAFLD progression.
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Affiliation(s)
- Nadella Mounika
- Department of Pharmacy Practice, NIPER-Guwahati, Sila Katamur, Halugurisuk, Changsari, Dist.Kamrup, Guwahati, Assam, India
| | - Angeera Yadav
- Department of Pharmacy Practice, NIPER-Guwahati, Sila Katamur, Halugurisuk, Changsari, Dist.Kamrup, Guwahati, Assam, India
| | - Parul Kamboj
- Senior Researcher, Translational Health Science and Technology Institute (THSTI), Faridabad, India
| | - Sanjay K. Banerjee
- Senior Researcher, Translational Health Science and Technology Institute (THSTI), Faridabad, India
- Department of Biotechnology, NIPER-Guwahati, Sila Katamur, Halugurisuk, Changsari, Dist.Kamrup, Guwahati, Assam, India
| | - Utpal Jyoti Deka
- Department of Gastroenterology, Downtown Hospital, GS Rd, Bormotoria, Guwahati, Assam, India
| | - Savneet Kaur
- Department of Molecular and Cellular Medicine, Institute of Liver & Biliary Science (ILBS), Vasant Kunj, New Delhi, India
| | - Ramu Adela
- Department of Pharmacy Practice, NIPER-Guwahati, Sila Katamur, Halugurisuk, Changsari, Dist.Kamrup, Guwahati, Assam, India
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20
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Chang BY, Bae JH, Lim CY, Kim YH, Kim TY, Kim SY. Tricin-enriched Zizania latifolia ameliorates non-alcoholic fatty liver disease through AMPK-dependent pathways. Food Sci Biotechnol 2023; 32:2117-2129. [PMID: 37860736 PMCID: PMC10581963 DOI: 10.1007/s10068-023-01311-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 02/18/2023] [Accepted: 04/12/2023] [Indexed: 10/21/2023] Open
Abstract
This study aimed to identify and elucidate the mechanism underlying the protective effect of tricin-enriched Zizania latifolia (Z. latifolia) extract (ETZL) against free fatty acid (FFA)-induced lipid accumulation in vitro and non-alcoholic fatty liver disease (NAFLD) induced by a high-fat diet and fructose diet (HFD/F) in vivo. ETZL treatment significantly lowered body weight gain and decreased adipose tissue, lipid, aspartate aminotransferase (AST), and alanine aminotransferase (ALT) levels in HFD/F-fed mice. ETZL acted on phosphorylated acetyl-CoA carboxylase (ACC) and anti-peroxisome proliferator-activated receptor α (PPARα) by activating the adenosine monophosphate-activated protein kinase (AMPK) pathway and inhibiting sterol regulatory element-binding proteins-1 (SREBP)/fatty acid synthase (FAS) signaling to inhibit de novo adipogenesis and increase fatty acid oxidation. In addition, treatment with ETZL increased nuclear factor erythroid-2-related factor 2 (Nrf2) levels to activate the antioxidant pathway. FFA-induced oxidative stress and fatty acid accumulation in HepG2 cells confirmed the improvement in fat accumulation through the AMPK and Nrf2 pathway activities of ETZL. These results suggest that ETZL ameliorates NAFLD by regulating lipid metabolism and defending against oxidative stress via AMPK-dependent pathways.
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Affiliation(s)
- Bo Yoon Chang
- Institute of Pharmaceutical Research and Development, College of Pharmacy, Wonkwang University, Iksan, 54538 Jeonbuk Korea
| | - Jin Hye Bae
- Institute of Pharmaceutical Research and Development, College of Pharmacy, Wonkwang University, Iksan, 54538 Jeonbuk Korea
| | - Cho Young Lim
- Technology Development Center, BTC Corporation, Ansan, 15588 Korea
| | - Yoon Hee Kim
- Technology Development Center, BTC Corporation, Ansan, 15588 Korea
| | - Tae Young Kim
- Technology Development Center, BTC Corporation, Ansan, 15588 Korea
| | - Sung Yeon Kim
- Institute of Pharmaceutical Research and Development, College of Pharmacy, Wonkwang University, Iksan, 54538 Jeonbuk Korea
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21
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Yang K, Huang Z, Wang S, Zhao Z, Yi P, Chen Y, Xiao M, Quan J, Hu X. The Hepatic Nerves Regulated Inflammatory Effect in the Process of Liver Injury: Is Nerve the Key Treating Target for Liver Inflammation? Inflammation 2023; 46:1602-1611. [PMID: 37490221 DOI: 10.1007/s10753-023-01854-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 05/09/2023] [Accepted: 06/05/2023] [Indexed: 07/26/2023]
Abstract
Liver injury is a common pathological basis for various liver diseases. Chronic liver injury is often an important initiating factor in liver fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). Currently, hepatitis A and E infections are the most common causes of acute liver injury worldwide, whereas drug toxicity (paracetamol overdose) in the USA and part of Western Europe. In recent years, chronic liver injury has become a common disease that harms human health. Meanwhile, the main causes of chronic liver injury are viral hepatitis (B, C) and long-term alcohol consumption worldwide. During the process of liver injury, massive inflammatory cytokines are stimulated by these hazardous factors, leading to a systemic inflammatory response syndrome, followed by a compensatory anti-inflammatory response, which causes immune cell dysfunction and sepsis, subsequent multi-organ failure. Cytokine release and immune cell infiltration-mediated aseptic inflammation are the most important features of the pathobiology of liver failure. From this perspective, diminishing the onset and progression of liver inflammation is of clinical importance in the treatment of liver injury. Although many studies have hinted at the critical role of nerves in regulating inflammation, there largely remains undetermined how hepatic nerves mediate immune inflammation and how the inflammatory factors released by these nerves are involved in the process of liver injury. Therefore, the purpose of this article is to summarize previous studies in the field related to hepatic nerve and inflammation as well as future perspectives on the aforementioned questions. Our findings were presented in three aspects: types of nerve distribution in the liver, how these nerves regulate immunity, and the role of liver nerves in hepatitis and liver failure.
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Affiliation(s)
- Kaili Yang
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Zebing Huang
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Shuyi Wang
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Zhihong Zhao
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Panpan Yi
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yayu Chen
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Meifang Xiao
- Department of Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Jun Quan
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China.
| | - Xingwang Hu
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China.
- Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, 87Th of Xiangya Road, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.
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22
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Wu W, Kaicen W, Bian X, Yang L, Ding S, Li Y, Li S, Zhuge A, Li L. Akkermansia muciniphila alleviates high-fat-diet-related metabolic-associated fatty liver disease by modulating gut microbiota and bile acids. Microb Biotechnol 2023; 16:1924-1939. [PMID: 37377410 PMCID: PMC10527187 DOI: 10.1111/1751-7915.14293] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 05/28/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
It has been reported that Akkermansia muciniphila improves host metabolism and reduces inflammation; however, its potential effects on bile acid metabolism and metabolic patterns in metabolic-associated fatty liver disease (MAFLD) are unknown. In this study, we have analysed C57BL/6 mice under three feeding conditions: (i) a low-fat diet group (LP), (ii) a high-fat diet group (HP) and (iii) a high-fat diet group supplemented with A. muciniphila (HA). The results found that A. muciniphila administration relieved weight gain, hepatic steatosis and liver injury induced by the high-fat diet. A. muciniphila altered the gut microbiota with a decrease in Alistipes, Lactobacilli, Tyzzerella, Butyricimonas and Blautia, and an enrichment of Ruminiclostridium, Osclibacter, Allobaculum, Anaeroplasma and Rikenella. The gut microbiota changes correlated significantly with bile acids. Meanwhile, A. muciniphila also improved glucose tolerance, gut barriers and adipokines dysbiosis. Akkermansia muciniphila regulated the intestinal FXR-FGF15 axis and reshaped the construction of bile acids, with reduced secondary bile acids in the caecum and liver, including DCA and LCA. These findings provide new insights into the relationships between probiotics, microflora and metabolic disorders, highlighting the potential role of A. muciniphila in the management of MAFLD.
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Affiliation(s)
- Wenrui Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Wang Kaicen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Xiaoyuan Bian
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Liya Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Shi Ding
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Yating Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Shengjie Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Aoxiang Zhuge
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
- Jinan Microecological Biomedicine Shandong LaboratoryJinanShandongChina
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23
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Yang S, Xu B, Han Y, Jiang M, Luo T, Wu N, Cao J, Zheng Y, Shen L, Qin W, Shi H, Dong L. TAF15 exacerbates nonalcoholic steatohepatitis progression by regulating lipid metabolism and inflammation via FASN and p65 NF-κB. Liver Int 2023; 43:1920-1936. [PMID: 37183512 DOI: 10.1111/liv.15607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 04/11/2023] [Accepted: 05/02/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND & AIMS Nonalcoholic fatty liver disease (NAFLD) consists of a broad spectrum of conditions, and nonalcoholic steatohepatitis (NASH) is the advanced form of NAFLD. TAF15 is a DNA and RNA binding protein and is involved in crucial inflammatory signalling pathways. We aimed to investigate the role of TAF15 in the progression of NASH and the underlying molecular mechanism. METHODS We generated mice with hepatocyte-specific knockdown and overexpression of TAF15 using a specific adeno-associated virus (AAV). NASH models were established by feeding mice high-fat and high-cholesterol diets and methionine- and choline-deficient diets. Cleavage under targets and tagmentation and dual-luciferase reporter assays were performed to investigate the effect of TAF15 on FASN transcription. Coimmunoprecipitation and immunofluorescence assays were conducted to explore the interaction of TAF15 and p65. In vitro coculture systems were established to study the interactions of hepatocytes, macrophages and HSCs. RESULTS TAF15 was significantly increased in the livers of mouse NASH models and primary hepatocyte NASH model. Knockdown of TAF15 inhibited steatosis, inflammation and fibrosis, while overexpression of TAF15 promoted NASH phenotypes. Mechanistically, TAF15 bound directly to the promoter region of FASN to facilitate its expression, thereby promoting steatosis. Moreover, TAF15 interacted with p65 and activated the NF-κB signalling pathway, increasing the secretion of proinflammatory cytokines and triggering M1 macrophage polarization. Treatment with the FASN inhibitor orlistat partially reversed the phenotypes. CONCLUSIONS These results suggested that TAF15 exacerbated NASH progression by regulating lipid metabolism and inflammation via transcriptional activation of FASN and interacting with p65 to activate the NF-κB signalling pathway.
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Affiliation(s)
- Suzhen Yang
- Department of Digestive Disease and Gastrointestinal Motility Research Room, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Bing Xu
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Yuying Han
- School of Medicine, Northwest University, Xi'an, China
| | - MingZuo Jiang
- Department of Gastroenterology and Hepatology, the Affiliated Jinling Hospital of Nanjing University Medical School, Nanjing, China
| | - Tingting Luo
- School of Medicine, Northwest University, Xi'an, China
| | - Nan Wu
- School of Medicine, Northwest University, Xi'an, China
| | - Jiayi Cao
- School of Medicine, Northwest University, Xi'an, China
| | - Ying Zheng
- Department of Digestive Disease and Gastrointestinal Motility Research Room, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lin Shen
- Department of Digestive Disease and Gastrointestinal Motility Research Room, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wen Qin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Haitao Shi
- Department of Digestive Disease and Gastrointestinal Motility Research Room, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lei Dong
- Department of Digestive Disease and Gastrointestinal Motility Research Room, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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24
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Li D, Dun Y, Qi D, Ripley-Gonzalez JW, Dong J, Zhou N, Qiu L, Zhang J, Zeng T, You B, Liu S. Intermittent fasting activates macrophage migration inhibitory factor and alleviates high-fat diet-induced nonalcoholic fatty liver disease. Sci Rep 2023; 13:13068. [PMID: 37567977 PMCID: PMC10421944 DOI: 10.1038/s41598-023-40373-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 08/09/2023] [Indexed: 08/13/2023] Open
Abstract
Switching to normal diet (ND) is the regular therapy for high-fat diet (HFD)-induced nonalcoholic fatty liver disease (NAFLD). Intermittent fasting (IF) is a unique treatment which may exhibits better therapeutic efficacy. Thus, we aim to investigate the therapeutic effects of these treatments and exploring the mechanisms. In the present study, NAFLD mouse model was induced by a 10-week HFD. Thereafter, mice adopted continued HFD, ND, or IF for the next 12 weeks. Finally, the liver was then harvested to assess lipid deposition, lipid metabolism, apoptosis, and autophagy, while blood was collected to determine blood glucose and insulin. The results showed that IF and ND treatment improved lipid deposition and metabolic disorder of NAFLD mice; the increasing body weight, liver weight, and HOMA-IR index of HFD mice were also alleviated by IF and ND. Furthermore, IF and ND treatment activated the macrophage migration inhibitory factor (MIF)/AMPK pathway and regulated its downstream autophagy and apoptosis. However, the efficacy of IF was better than ND. Both IF and ND activates MIF signaling and alleviate the lipotoxicity of NAFLD while IF therapy is more effective than ND. The different MIF up-regulation might be the underlying mechanism of why IF benefits more than ND.
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Affiliation(s)
- Dezhao Li
- Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, Changsha, Hunan, China
| | - Yaoshan Dun
- Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, China
| | - Dake Qi
- College of Pharmacy, University of Manitoba, Winnipeg, MB, Canada
| | - Jeffrey W Ripley-Gonzalez
- Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, Changsha, Hunan, China
| | - Jie Dong
- Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, Changsha, Hunan, China
| | - Nanjiang Zhou
- Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, Changsha, Hunan, China
| | - Ling Qiu
- Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, China
| | - Jie Zhang
- Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, Changsha, Hunan, China
| | - Tanghao Zeng
- Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, Changsha, Hunan, China
| | - Baiyang You
- Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, Changsha, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, China.
| | - Suixin Liu
- Division of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital Central South University, Changsha, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, China.
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25
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Chen X, Shi W, Xie Y, Wang Y, Yao Q, Ke H, Xu X, Liu H, Liu P, Zhou X. Hepatic Krüppel-like factor 14 regulates lipid metabolism in nonalcoholic steatohepatitis mice. FASEB J 2023; 37:e23070. [PMID: 37389939 DOI: 10.1096/fj.202300448r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/31/2023] [Accepted: 06/20/2023] [Indexed: 07/01/2023]
Abstract
Excessive lipid accumulation is a critical characteristic in the development of nonalcoholic steatohepatitis (NASH). The underlying molecular mechanism, however, is unclear. In this study, we explored whether and how Krüppel-like factor 14 (KLF14) affects hepatic lipid metabolism in NASH. KLF14 expression was detected in NASH patients and mice fed a choline-deficient, L-amino acid-defined, high-fat diet (CDAHFD). Adeno-associated viruses and adenoviruses were used to alter hepatic KLF14 expression in vivo or in vitro to investigate how KLF14 functions in lipid regulation. The molecular mechanisms were explored using RNA-seq, luciferase reporter, and ChIP assays. The fatty liver phenotype was analyzed histopathologically, and serum and hepatocyte biochemical parameters were measured. The NASH mouse model developed quickly in C57BL/6J mice fed a CDAHFD for 8 weeks. We found that KLF14 expression was decreased in NASH patients and CDAHFD mice. Oleic acid and palmitic acid treatment also reduced KLF14 levels in hepatocytes. KLF14 knockdown downregulated the genes involved in fatty acid oxidation, promoting the progression of hepatic steatosis. In contrast, hepatic KLF14 overexpression alleviated lipid accumulation and oxidative stress in CDAHFD mice. These effects resulted from direct activation of the PPARα signaling pathway. PPARα inhibition diminished the KLF14 overexpression-reduced protective effects against steatosis in OA&PA-treated MPHs and AAV-KLF14-infected CDAHFD mice. These data reveal that hepatic KLF14 regulates lipid accumulation and oxidative stress through the KLF14-PPARα pathway as NASH progresses. KLF14 may be a novel therapeutic target for hepatic steatosis.
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Affiliation(s)
- Xiaoyan Chen
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Gastroenterology Institute of Jiangxi Province, Nanchang, China
| | - Wenjie Shi
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yong Xie
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Gastroenterology Institute of Jiangxi Province, Nanchang, China
| | - Yunwu Wang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qian Yao
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Gastroenterology Institute of Jiangxi Province, Nanchang, China
| | - Huajing Ke
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xuan Xu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Gastroenterology Institute of Jiangxi Province, Nanchang, China
| | - Hui Liu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Gastroenterology Institute of Jiangxi Province, Nanchang, China
| | - Pi Liu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The People's Hospital of Longhua, Shenzhen, China
| | - Xiaojiang Zhou
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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Wang H, Shen H, Seo W, Hwang S. Experimental models of fatty liver diseases: Status and appraisal. Hepatol Commun 2023; 7:e00200. [PMID: 37378635 DOI: 10.1097/hc9.0000000000000200] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/16/2023] [Indexed: 06/29/2023] Open
Abstract
Fatty liver diseases, including alcohol-associated liver disease (ALD) and nonalcoholic fatty liver disease nonalcoholic fatty liver disease (NAFLD), affect a large number of people worldwide and become one of the major causes of end-stage liver disease, such as liver cirrhosis and hepatocellular carcinoma (HCC). Unfortunately, there are currently no approved pharmacological treatments for ALD or NAFLD. This situation highlights the urgent need to explore new intervention targets and discover effective therapeutics for ALD and NAFLD. The lack of properly validated preclinical disease models is a major obstacle to the development of clinical therapies. ALD and NAFLD models have been in the development for decades, but there are still no models that recapitulate the full spectrum of ALD and NAFLD. Throughout this review, we summarize the current in vitro and in vivo models used for research on fatty liver diseases and discuss the advantages and limitations of these models.
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Affiliation(s)
- Hua Wang
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei, China
| | - Haiyuan Shen
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei, China
| | - Wonhyo Seo
- Laboratory of Hepatotoxicity, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Seonghwan Hwang
- College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, Republic of Korea
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27
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Chen Y, Wang W, Morgan MP, Robson T, Annett S. Obesity, non-alcoholic fatty liver disease and hepatocellular carcinoma: current status and therapeutic targets. Front Endocrinol (Lausanne) 2023; 14:1148934. [PMID: 37361533 PMCID: PMC10286797 DOI: 10.3389/fendo.2023.1148934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/16/2023] [Indexed: 06/28/2023] Open
Abstract
Obesity is a global epidemic and overwhelming evidence indicates that it is a risk factor for numerous cancers, including hepatocellular carcinoma (HCC), the third leading cause of cancer-related deaths worldwide. Obesity-associated hepatic tumorigenesis develops from nonalcoholic fatty liver disease (NAFLD), progressing to nonalcoholic steatohepatitis (NASH), cirrhosis and ultimately to HCC. The rising incidence of obesity is resulting in an increased prevalence of NAFLD and NASH, and subsequently HCC. Obesity represents an increasingly important underlying etiology of HCC, in particular as the other leading causes of HCC such as hepatitis infection, are declining due to effective treatments and vaccines. In this review, we provide a comprehensive overview of the molecular mechanisms and cellular signaling pathways involved in the pathogenesis of obesity-associated HCC. We summarize the preclinical experimental animal models available to study the features of NAFLD/NASH/HCC, and the non-invasive methods to diagnose NAFLD, NASH and early-stage HCC. Finally, since HCC is an aggressive tumor with a 5-year survival of less than 20%, we will also discuss novel therapeutic targets for obesity-associated HCC and ongoing clinical trials.
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Affiliation(s)
- Yinshuang Chen
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Weipeng Wang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Maria P. Morgan
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
| | - Tracy Robson
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
| | - Stephanie Annett
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
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Aljahdali BA, Bajaber AS, Al-Nouri DM, Al-Khalifah AS, Arzoo S, Alasmari AA. The Development of Nonalcoholic Fatty Liver Disease and Metabolic Syndromes in Diet-Induced Rodent Models. Life (Basel) 2023; 13:1336. [PMID: 37374119 DOI: 10.3390/life13061336] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/28/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Dietary macronutrients are essential for metabolic regulation and insulin function. The present study examined the effects of different high-fat diets (HFDs) and high-carbohydrate diets (HCDs) on the development of non-alcoholic fatty liver disease and metabolic syndrome indices in healthy adult male Wistar albino rats. Forty-two rats were distributed into six groups (n = 7), which were fed the following for 22 weeks: (1) a control diet; (2) a high-carbohydrate, low-fat diet (HCD-LFD); (3) high-saturated-fat, low-carbohydrate diet (HSF-LCD); (4) a high-monounsaturated-fat diet (HMUSF); (5) a high medium-chain fat diet (HMCF); and a (6) a high-carbohydrate, high-fiber diet (HCHF). In comparison to the control, the body weight increased in all the groups. The HSF-LCD group showed the highest levels of cholesterol, triglyceride, low-density lipoprotein, hepatic enzyme, insulin resistance, and Homeostatic Model Assessment for Insulin Resistance. A liver histology analysis of the HSF-LCD group showed macrovesicular hepatic steatosis associated with large hepatic vacuolation. Additionally, it showed marked periportal fibrosis, especially around the blood vessels and blood capillaries. The lowest levels of fasting glycemia, insulin, and HOMA-IR were observed in the HCHF group. In conclusion, these findings show that dietary saturated fat and cholesterol are principal components in the development and progression of non-alcoholic fatty liver disease in rats, while fiber showed the greatest improvement in glycemic control.
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Affiliation(s)
- Bayan Abdulhafid Aljahdali
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh 1495, Saudi Arabia
| | - Adnan Salem Bajaber
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh 1495, Saudi Arabia
| | - Doha M Al-Nouri
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh 1495, Saudi Arabia
| | - Abdulrahman Saleh Al-Khalifah
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh 1495, Saudi Arabia
| | - Shaista Arzoo
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh 1495, Saudi Arabia
| | - Abeer Abdullah Alasmari
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh 1495, Saudi Arabia
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29
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Ye X, Chen Y, Qi J, Zhu S, Wu Y, Xiong J, Hu F, Guo Z, Liang X. Design and pharmaceutical evaluation of bifunctional fusion protein of FGF21 and GLP-1 in the treatment of nonalcoholic steatohepatitis. Eur J Pharmacol 2023:175811. [PMID: 37245859 DOI: 10.1016/j.ejphar.2023.175811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/08/2023] [Accepted: 05/25/2023] [Indexed: 05/30/2023]
Abstract
Fibroblast growth factor 21 (FGF21) and glucagon-like peptide-1 (GLP-1) may be useful for the treatment of type 2 diabetes, obesity, and non-alcoholic fatty liver disease (NAFLD). Previous studies have shown that GLP-1 may synergize with FGF21 in the regulation of glucose and lipid metabolism. Currently, no approved drug therapy is available for non-alcoholic steatohepatitis (NASH). Here, we constructed and screened dual-targeting fusion proteins of GLP-1 and FGF21, connected by elastin-like polypeptides (ELPs), to investigate whether a combination of these two hormones would have therapeutic effects in models of NASH. The temperature phase transition and release of the hormones under physiological conditions were studied to identify a bifunctional fusion protein of FGF21 and GLP-1 (GEF) that was highly stable and showed sustained release. We further evaluated the quality and therapeutic efficacy of GEF in three mouse models of NASH. We successfully synthesized a novel recombinant bifunctional fusion protein with high stability and low immunogenicity. The GEF protein synthesized ameliorated hepatic lipid accumulation, hepatocyte damage, and inflammation; prevented the progression of NASH in the three models; reduced glycemia; and caused weight loss. This novel GEF molecule may be suitable for clinical use for the treatment of NAFLD/NASH and related metabolic diseases.
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Affiliation(s)
- Xianlong Ye
- Ganjiang Chinese Medicine Innovation Center, Nanchang, 330000, China.
| | - Yingli Chen
- Ganjiang Chinese Medicine Innovation Center, Nanchang, 330000, China
| | - Jianying Qi
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang, 330022, China
| | - Shenglong Zhu
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yuanyuan Wu
- Ganjiang Chinese Medicine Innovation Center, Nanchang, 330000, China
| | - Jingjing Xiong
- Ganjiang Chinese Medicine Innovation Center, Nanchang, 330000, China
| | - Fei Hu
- Ganjiang Chinese Medicine Innovation Center, Nanchang, 330000, China
| | - Zhimou Guo
- Ganjiang Chinese Medicine Innovation Center, Nanchang, 330000, China; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Key Laboratory of Separation Science for Analytical Chemistry, Zhongshan Road 457, Dalian, 116023, China.
| | - Xinmiao Liang
- Ganjiang Chinese Medicine Innovation Center, Nanchang, 330000, China; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Key Laboratory of Separation Science for Analytical Chemistry, Zhongshan Road 457, Dalian, 116023, China.
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30
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Saenz M, McDonough JC, Bloom-Saldana E, Irimia JM, Cauble EL, Castillo A, Fueger PT, Treviño LS. Longitudinal analysis of a dietary mouse model of non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH). BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.19.540989. [PMID: 37293034 PMCID: PMC10245692 DOI: 10.1101/2023.05.19.540989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD), and resultant non-alcoholic steatohepatitis (NASH), incidence and prevalence are rising globally due to increasing rates of obesity and diabetes. Currently, there are no approved pharmacological treatments for NAFLD, highlighting a need for additional mechanistic studies to develop prevention and/or therapeutic strategies. Diet-induced preclinical models of NAFLD can be used to examine the dynamic changes that occur during NAFLD development and progression throughout the lifespan. To date, most studies utilizing such models have focused exclusively on terminal time points and have likely missed critical early and late changes that are important for NAFLD progression (i.e, worsening). We performed a longitudinal analysis of histopathological, biochemical, transcriptomic, and microbiome changes that occurred in adult male mice fed either a control diet or a NASH-promoting diet (high in fat, fructose, and cholesterol) for up to 30 weeks. We observed progressive development of NAFLD in mice fed the NASH diet compared to the control diet. Differential expression of immune-related genes was observed at an early stage of diet-induced NAFLD development (10 weeks) and persisted into the later stages of the disease (20 and 30 weeks). Differential expression of xenobiotic metabolism related genes was observed at the late stage of diet-induced NAFLD development (30 weeks). Microbiome analysis revealed an increased abundance of Bacteroides at an early stage (10 weeks) that persisted into the later stages of the disease (20 and 30 weeks). These data provide insight into the progressive changes that occur during NAFLD/NASH development and progression in the context of a typical Western diet. Furthermore, these data are consistent with what has been reported in patients with NAFLD/NASH, supporting the preclinical use of this diet-induced model for development of strategies to prevent or treat the disease.
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Affiliation(s)
- Marissa Saenz
- Center for Comparative Medicine, City of Hope, Duarte, CA
- Department of Molecular and Cellular Endocrinology, City of Hope, Duarte, CA
| | - Jillian C. McDonough
- Division of Health Inequities, Department of Population Sciences, City of Hope, Duarte, CA
| | - Elizabeth Bloom-Saldana
- Department of Molecular and Cellular Endocrinology, City of Hope, Duarte, CA
- Comprehensive Metabolic Phenotyping Core, Beckman Research Institute, City of Hope, Duarte, CA
| | - Jose M. Irimia
- Department of Molecular and Cellular Endocrinology, City of Hope, Duarte, CA
- Comprehensive Metabolic Phenotyping Core, Beckman Research Institute, City of Hope, Duarte, CA
| | - Emily L. Cauble
- Division of Health Inequities, Department of Population Sciences, City of Hope, Duarte, CA
| | - Ashly Castillo
- Eugene and Ruth Roberts Summer Student Academy, Irell & Manella Graduate School of Biological Sciences, City of Hope, Duarte, CA
| | - Patrick T. Fueger
- Department of Molecular and Cellular Endocrinology, City of Hope, Duarte, CA
- Comprehensive Metabolic Phenotyping Core, Beckman Research Institute, City of Hope, Duarte, CA
| | - Lindsey S. Treviño
- Division of Health Inequities, Department of Population Sciences, City of Hope, Duarte, CA
- Cancer Control and Population Sciences, Comprehensive Cancer Center, City of Hope, Duarte, CA
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Lü H, Meng X, Ding X, Jian T, Zuo Y, Liu Y, Ren B, Li W, Chen J. Gallotannin Isolated from Pericarp of Water Caltrop Ameliorates High-Fat Diet-Induced Nonalcoholic Fatty Liver Disease in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:7046-7057. [PMID: 37113100 DOI: 10.1021/acs.jafc.3c01099] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a worldwide prevalent chronic liver disease characterized by hepatic steatosis. Water caltrop, the fruit of Trapa natan, is widely cultivated as an edible vegetable in Asian countries. In China, water caltrop pericarp has long been used as a functional food to treat metabolic syndrome, yet the bioactive substances and their pharmacological mechanisms remain unclear. In this study, a natural gallotannin, 1,2,3,6-tetra-O-galloyl-β-D-glucopyranoside (GA), was isolated from water caltrop pericarp and evaluated for its therapeutic effect on NAFLD. Treatment of GA (15 and 30 mg/kg/day) suppressed the body weight gain (p < 0.001) and ameliorated lipid deposition (p < 0.001) in high-fat diet (HFD)-induced NAFLD mice. GA was able to alleviate HFD-induced insulin resistance (p < 0.001), oxidative stress (p < 0.001), and inflammation (p < 0.001), thereby restoring the liver function in HFD-induced NAFLD mice. Mechanistically, GA diminished the aberrant signaling pathways including AMPK/SREBP/ACC, IRs-1/Akt, IKK/IκB/NF-κB in HFD-induced NAFLD mice and modified gut microbiota dysbiosis in these mice as well. The current findings suggest that GA is a promising novel agent for NAFLD therapy.
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Affiliation(s)
- Han Lü
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
| | - Xiuhua Meng
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
| | - Xiaoqin Ding
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
| | - Tunyu Jian
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
| | - Yuanyuan Zuo
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
| | - Yan Liu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
| | - Bingru Ren
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
| | - Weilin Li
- Co-Innovation Center for Sustainable Forestry in Southern China, Forestry College, Nanjing Forestry University, Nanjing 210037, China
| | - Jian Chen
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing 210014, China
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32
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Adori M, Bhat S, Gramignoli R, Valladolid-Acebes I, Bengtsson T, Uhlèn M, Adori C. Hepatic Innervations and Nonalcoholic Fatty Liver Disease. Semin Liver Dis 2023; 43:149-162. [PMID: 37156523 PMCID: PMC10348844 DOI: 10.1055/s-0043-57237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disorder. Increased sympathetic (noradrenergic) nerve tone has a complex role in the etiopathomechanism of NAFLD, affecting the development/progression of steatosis, inflammation, fibrosis, and liver hemodynamical alterations. Also, lipid sensing by vagal afferent fibers is an important player in the development of hepatic steatosis. Moreover, disorganization and progressive degeneration of liver sympathetic nerves were recently described in human and experimental NAFLD. These structural alterations likely come along with impaired liver sympathetic nerve functionality and lack of adequate hepatic noradrenergic signaling. Here, we first overview the anatomy and physiology of liver nerves. Then, we discuss the nerve impairments in NAFLD and their pathophysiological consequences in hepatic metabolism, inflammation, fibrosis, and hemodynamics. We conclude that further studies considering the spatial-temporal dynamics of structural and functional changes in the hepatic nervous system may lead to more targeted pharmacotherapeutic advances in NAFLD.
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Affiliation(s)
- Monika Adori
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Sadam Bhat
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Roberto Gramignoli
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ismael Valladolid-Acebes
- Department of Molecular Medicine and Surgery, The Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska Institutet, Stockholm, Sweden
| | - Tore Bengtsson
- Department of Molecular Biosciences, The Wenner-Gren Institute (MBW), Stockholm University, Stockholm, Sweden
| | - Mathias Uhlèn
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Royal Institute of Technology, Stockholm, Sweden
| | - Csaba Adori
- Department of Molecular Biosciences, The Wenner-Gren Institute (MBW), Stockholm University, Stockholm, Sweden
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Liu J, Gao S, Zhou W, Chen Y, Wang Z, Zeng Z, Zhou H, Lin T. Dihydrotrichodimerol Purified from the Marine Fungus Acremonium citrinum Prevents NAFLD by Targeting PPARα. JOURNAL OF NATURAL PRODUCTS 2023; 86:1189-1201. [PMID: 37083418 DOI: 10.1021/acs.jnatprod.2c00990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The pathogenesis of nonalcoholic fatty liver disease (NAFLD) is closely linked to the imbalance of lipid and glucose metabolism, in which peroxisome proliferator-activated receptors (PPARs) play essential roles. The clinical trials have shown the beneficial effects of the PPARs' ligands on NAFLD. In this study, we screen the extracts from the marine fungus Acremonium citrinum and identify the natural compounds dihydrotrichodimerol (L1A) and trichodimerol (L1B) as the ligands of PPARs, of which L1A is a dual PPARα/γ agonist, whereas L1B is a selective PPARγ agonist. L1A but not L1B significantly prevents hepatic lipid accumulation in an oleic acid-induced NAFLD cell model as well as in a high-fat-diet-induced NAFLD mouse model. Moreover, L1A potently inhibits hepatic steatosis in a PPARα-dependent manner in another NAFLD mouse model constructed by using a choline-deficient and amino acid-defined diet. Mechanistically, L1A transcriptionally up-regulates the expression of SIRT1 in a PPARα-dependent manner, followed by the activation of AMPK and inactivation of ACC, resulting in the inhibition of lipid anabolism and the increase of lipid catabolism. Taken together, our study reveals a dual ligand of PPARα/γ with a distinct structure and therapeutic effect on NAFLD, providing a potential drug candidate bridging the currently urgent need for the management of NAFLD.
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Affiliation(s)
- Jie Liu
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen, Fujian 361102, China
| | - Shuo Gao
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen, Fujian 361102, China
| | - Wanxuan Zhou
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen, Fujian 361102, China
| | - Yongyan Chen
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen, Fujian 361102, China
| | - Zhenwu Wang
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen, Fujian 361102, China
- High Throughput Drug Screening Platform, Xiamen University, Xiamen, Fujian 361102, China
| | - Zhiping Zeng
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen, Fujian 361102, China
- High Throughput Drug Screening Platform, Xiamen University, Xiamen, Fujian 361102, China
| | - Hu Zhou
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen, Fujian 361102, China
- High Throughput Drug Screening Platform, Xiamen University, Xiamen, Fujian 361102, China
| | - Ting Lin
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen, Fujian 361102, China
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Izawa T, Travlos GS, Cortes RA, Clayton NP, Sills RC, Pandiri AR. Absence of Increased Susceptibility to Acetaminophen-Induced Liver Injury in a Diet-Induced NAFLD Mouse Model. Toxicol Pathol 2023; 51:112-125. [PMID: 37158481 PMCID: PMC10523943 DOI: 10.1177/01926233231171101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a common chronic liver disease and its influence on drug-induced liver injury (DILI) is not fully understood. We investigated whether NAFLD can influence acetaminophen (APAP [N-acetyl-p-aminophenol])-induced hepatotoxicity in a diet-induced obese (DIO) mouse model of NAFLD. The male C57BL/6NTac DIO mice, fed a high-fat diet for more than 12 weeks, developed obesity, hyperinsulinemia, impaired glucose tolerance, and hepatomegaly with hepatic steatosis, similar to human NAFLD. In the acute toxicity study after a single dose of APAP (150 mg/kg), compared with control lean mice, the DIO mice had decreased serum transaminase levels and less severe hepatocellular injury. The DIO mice also had altered expression of genes related to APAP metabolism. Chronic APAP exposure for 26 weeks did not predispose the DIO mice with NAFLD to more severe hepatotoxicity compared with the lean mice. These results suggested that the C57BL/6NTac DIO mouse model appears to be more tolerant to APAP-induced hepatotoxicity than lean mice, potentially related to altered xenobiotic metabolizing capacity in the fatty liver. Further mechanistic studies with APAP and other drugs in NAFLD animal models are necessary to investigate the mechanism of altered susceptibility to intrinsic DILI in some human NAFLD patients.
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Affiliation(s)
- Takeshi Izawa
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
- Laboratory of Veterinary Pathology, Osaka Metropolitan University, Izumisano, Osaka, Japan
| | - Gregory S. Travlos
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
| | - Ricardo A. Cortes
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
- Experimental Pathology Laboratories, Inc., Research Triangle Park, NC, USA
| | - Natasha P. Clayton
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
| | - Robert C. Sills
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
| | - Arun R. Pandiri
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
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Fructooligosaccharides attenuate non-alcoholic fatty liver disease by remodeling gut microbiota and association with lipid metabolism. Biomed Pharmacother 2023; 159:114300. [PMID: 36696803 DOI: 10.1016/j.biopha.2023.114300] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is a common liver disease highly associated with metabolic diseases and gut dysbiosis. Several clinical trials have confirmed that fructooligosaccharides (FOSs) are a viable alternative treatment for NAFLD. However, the mechanisms underlying the activities of FOSs remain unclear. METHODS In this study, the effects of FOSs were investigated with the use of two C57BL/6 J mouse models of NAFLD induced by a high-fat, high-cholesterol (HFHC) diet and a methionine- and choline-deficient (MCD) diet, respectively. The measured metabolic parameters included body, fat, and liver weights; and blood glucose, glucose tolerance, and serum levels of glutamate transaminase, aspartate transaminase, and triglycerides. Liver tissues were collected for histological analysis. In addition, 16 S rRNA sequencing was conducted to investigate the effects of FOSs on the composition of the gut microbiota of mice in the HFHC and MCD groups and treated with FOSs. RESULTS FOS treatment attenuated severe metabolic changes and hepatic steatosis caused by the HFHC and MCD diets. In addition, FOSs remodeled the structure of gut microbiota in mice fed the HFHC and MCD diets, as demonstrated by increased abundances of Bacteroidetes (phylum level), Klebsiella variicola, Lactobacillus gasseri, and Clostridium perfringens (species level); and decreased abundances of Verrucomicrobia (phylum level) and the Fissicatena group (genus level). Moreover, the expression levels of genes associated with lipid metabolism and inflammation (i.e., ACC1, PPARγ, CD36, MTTP, APOC3, IL-6, and IL-1β) were down-regulated after FOS treatment. CONCLUSION FOSs alleviated the pathological phenotype of NAFLD via remodeling of the gut microbiota composition and decreasing hepatic lipid metabolism, suggesting that FOSs as functional dietary supplements can potentially reduce the risk of NAFLD.
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Liu J, Yu X, Ting HJ, Wang X, Xu S, Wang Y, Zhang S, Wang JW, Liu B. Myeloperoxidase-Sensitive T1 and T2 Switchable MR Imaging for Diagnosis of Nonalcoholic Steatohepatitis. ACS NANO 2023; 17:3324-3333. [PMID: 36773320 DOI: 10.1021/acsnano.2c06233] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Nonalcoholic steatohepatitis (NASH) is the critical stage in the development of nonalcoholic fatty liver disease (NAFLD) from simple and reversible steatosis to irreversible cirrhosis and even hepatocellular carcinoma (HCC). Thus, the diagnosis of NASH is important for preventing the progress of NAFLD into a fatal condition. The oxidative enzyme myeloperoxidase (MPO), which is mostly produced by polymorphonuclear neutrophil granulocytes (NEU), has been identified as a key player in lipid peroxidation in inflamed tissues. Considering that the expression of MPO was much higher in NASH than in the nonalcoholic fatty liver (NAFL) with steatosis, we designed a nanoparticle platform based on ultrasmall iron oxide (USIO) nanoparticles to realize MPO-sensitive NASH diagnosis. After modification of USIO nanoparticles with amphiphilic poly(ethylene glycol) (PEG) and conjugation with 5-hydroxytryptamine (5HT), a physiological substrate for MPO, the final nanocomposite (USIO-DA-PEG-5HT) revealed MPO-mediated aggregation at the inflammatory site of NASH. Meanwhile, the intrinsic T1-weighted magnetic resonance (MR) signal of dispersed USIO-DA-PEG-5HT nanoparticles diminishes, while the T2-weighted MR signal is amplified owing to the aggregation effect. These USIO-DA-PEG-5HT nanoprobes offer great potential for improving NASH MR imaging diagnostic accuracy and sensitivity compared to existing molecular MR contrast agents with a single imaging modality.
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Affiliation(s)
- Jingjing Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Xiaodong Yu
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117609, Singapore
| | - Hui Jun Ting
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117609, Singapore
| | - Xiaoyuan Wang
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117609, Singapore
| | - Shidang Xu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Yuanbo Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Sitong Zhang
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117609, Singapore
| | - Jiong-Wei Wang
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117609, Singapore
- Cardiovascular Research Institute, National University Heart Centre Singapore, Singapore 117599, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
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Wu Y, Liu Q, Wang Y, Li F, Chan LWC, Wen Y, Yang F, Xiang Y, Duan Q, Luo P, Lei P. Diagnostic efficiency on ultrasound shear wave elastography in evaluation of steatosis severity for non-alcoholic fatty liver disease: a rat model. Eur J Med Res 2023; 28:75. [PMID: 36774529 PMCID: PMC9921353 DOI: 10.1186/s40001-023-01042-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 02/03/2023] [Indexed: 02/13/2023] Open
Abstract
BACKGROUND The pathological feature of steatosis affects the elasticity values measured by shear wave elastography (SWE) is still controversial in non-alcoholic fatty liver disease (NAFLD). The aim of this study is to demonstrate the influence of steatosis on liver stiffness measured by SWE on a rat model with NAFLD and analyze feasibility of SWE for grading steatosis in absence of fibrosis. METHODS Sixty-six rats were fed with methionine choline deficient diet or standard diet to produce various stages of steatosis; 48 rats were available for final analysis. Rats underwent abdominal ultrasound SWE examination and pathological assessment. Liver histopathology was analyzed to assess the degree of steatosis, inflammation, ballooning, and fibrosis according to the non-alcoholic fatty liver disease activity score. The diagnostic performance of SWE for differentiating steatosis stages was estimated according to the receiver operating characteristic (ROC) curve. Decision curve analysis (DCA) was conducted to determine clinical usefulness and the areas under DCA (AUDCAs) calculated. RESULTS In multivariate analysis, steatosis was an independent factor affecting the mean elastic modules (B = 1.558, P < 0.001), but not inflammation (B = - 0.031, P = 0.920) and ballooning (B = 0.216, P = 0.458). After adjusting for inflammation and ballooning, the AUROC of the mean elasticity for identifying S ≥ S1 was 0.956 (95%CI: 0.872-0.998) and the AUDCA, 0.621. The AUROC for distinguishing S ≥ S2 and S = S3 was 0.987 (95%CI: 0.951-1.000) and 0.920 (95%CI: 0.816-0.986) and the AUDCA was 0.506 and 0.256, respectively. CONCLUSIONS Steatosis is associated with liver stiffness and SWE may have the feasibility to be introduced as an assistive technology in grading steatosis for patients with NAFLD in absence of fibrosis.
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Affiliation(s)
- Yuhui Wu
- grid.452244.1Department of Radiology, the Affiliated Hospital of Guizhou Medical University, No. 28 Guiyi Street, Yunyan District, Guiyang, 550004 Guizhou China
| | - Qianjiao Liu
- grid.452244.1Department of Radiology, the Affiliated Hospital of Guizhou Medical University, No. 28 Guiyi Street, Yunyan District, Guiyang, 550004 Guizhou China
| | - Yan Wang
- grid.452244.1Department of Radiology, the Affiliated Hospital of Guizhou Medical University, No. 28 Guiyi Street, Yunyan District, Guiyang, 550004 Guizhou China
| | - Fangyan Li
- grid.452244.1Department of Radiology, the Affiliated Hospital of Guizhou Medical University, No. 28 Guiyi Street, Yunyan District, Guiyang, 550004 Guizhou China
| | - Lawrence Wing-Chi Chan
- grid.16890.360000 0004 1764 6123Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, SAR China
| | - Yong Wen
- grid.452244.1Department of Radiology, the Affiliated Hospital of Guizhou Medical University, No. 28 Guiyi Street, Yunyan District, Guiyang, 550004 Guizhou China
| | - Fan Yang
- grid.413458.f0000 0000 9330 9891School of Biology & Engineering, Guizhou Medical University, Guiyang,, Guizhou China
| | - Yining Xiang
- grid.452244.1Department of Pathology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou China
| | - Qinghong Duan
- grid.452244.1Department of Radiology, the Affiliated Hospital of Guizhou Medical University, No. 28 Guiyi Street, Yunyan District, Guiyang, 550004 Guizhou China
| | - Peng Luo
- grid.413458.f0000 0000 9330 9891School of Public Health, Guizhou Medical University, Guiyang, Guizhou China
| | - Pinggui Lei
- Department of Radiology, the Affiliated Hospital of Guizhou Medical University, No. 28 Guiyi Street, Yunyan District, Guiyang, 550004, Guizhou, China. .,School of Public Health, Guizhou Medical University, Guiyang, Guizhou, China. .,Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, SAR, China.
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Wu S, Wang X, Xing W, Li F, Liang M, Li K, He Y, Wang J. An update on animal models of liver fibrosis. Front Med (Lausanne) 2023; 10:1160053. [PMID: 37035335 PMCID: PMC10076546 DOI: 10.3389/fmed.2023.1160053] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/06/2023] [Indexed: 04/11/2023] Open
Abstract
The development of liver fibrosis primarily determines quality of life as well as prognosis. Animal models are often used to model and understand the underlying mechanisms of human disease. Although organoids can be used to simulate organ development and disease, the technology still faces significant challenges. Therefore animal models are still irreplaceable at this stage. Currently, in vivo models of liver fibrosis can be classified into five categories based on etiology: chemical, dietary, surgical, transgenic, and immune. There is a wide variety of animal models of liver fibrosis with varying efficacy, which have different implications for proper understanding of the disease and effective screening of therapeutic agents. There is no high-quality literature recommending the most appropriate animal models. In this paper, we will describe the progress of commonly used animal models of liver fibrosis in terms of their development mechanisms, applications, advantages and disadvantages, and recommend appropriate animal models for different research purposes.
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Affiliation(s)
- ShuTing Wu
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - XinXin Wang
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - WenBo Xing
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - FenYao Li
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - Ming Liang
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - KeShen Li
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - Yan He
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
- *Correspondence: Yan He,
| | - JianMing Wang
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
- Department of Hepatobiliary and Pancreatic Surgery, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
- JianMing Wang,
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Song H, Yang R, Zhang J, Sun P, Xing X, Wang L, Sairijima T, Hu Y, Liu Y, Cheng H, Zhang Q, Li L. Oleic acid-induced steatosis model establishment in LMH cells and its effect on lipid metabolism. Poult Sci 2023; 102:102297. [PMID: 36446267 PMCID: PMC9709224 DOI: 10.1016/j.psj.2022.102297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 10/22/2022] [Accepted: 10/24/2022] [Indexed: 11/24/2022] Open
Abstract
Hepatic steatosis is a highly prevalent liver disease, yet research on it is hampered by the lack of tractable cellular models in poultry. To examine the possibility of using organoids to model steatosis and detect it efficiently in leghorn male hepatocellular (LMH) cells, we first established steatosis using different concentrations of oleic acid (OA) (0.05-0.75 mmol/L) for 12 or 24 h. The subsequent detections found that the treatment of LMH cells with OA resulted in a dramatic increase in intracellular triglyceride (TG) concentrations, which was positively associated with the concentration of the inducing OA (R2 > 0.9). Then, the modeled steatosis was detected by flow cytometry after NileRed staining and it was found that the intensity of NileRed-A was positively correlated with the TG concentration (R2 > 0.93), which demonstrates that the flow cytometry is suitable for the detection of steatosis in LMH cells. According to the detection results of the different steatosis models, we confirmed that the optimal induction condition for the establishment of the steatosis model in LMH cells is OA (0.375 mmol/L) incubation for 12 h. Finally, the transcription and protein content of fat metabolism-related genes in steatosis model cells were detected. It was found that OA-induced steatosis could significantly decrease the expression of nuclear receptor PPAR-γ and the synthesis of fatty acids (SREBP-1C, ACC1, FASN), increasing the oxidative decomposition of triglycerides (CPT1A) and the assembly of low-density lipoproteins (MTTP, ApoB). Sterol metabolism in model cells was also significantly enhanced (HMGR, ABCA1, L-BABP). This study established, detected, and analyzed an OA-induced steatosis model in LMH cells, which provides a stable model and detection method for the study of poultry steatosis-related diseases.
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Affiliation(s)
- Huiqi Song
- College of life science and technology, Tarim University, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China
| | - Ruizhi Yang
- College of life science and technology, Tarim University, Alar 843300, Xinjiang, China; College of animal science and technology, Alar 843300, Xinjiang, China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China
| | - Jiahao Zhang
- College of animal science and technology, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China
| | - Pengliang Sun
- College of animal science and technology, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China
| | - Xiaoyue Xing
- College of animal science and technology, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China
| | - Lan Wang
- College of animal science and technology, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China
| | - Ta Sairijima
- College of animal science and technology, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China
| | - Yahui Hu
- College of animal science and technology, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China
| | - Yang Liu
- College of animal science and technology, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China
| | - Huixu Cheng
- College of animal science and technology, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China
| | - Qiulin Zhang
- College of animal science and technology, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China
| | - Lianrui Li
- College of life science and technology, Tarim University, Alar 843300, Xinjiang, China; College of animal science and technology, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang ,China; Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Corps, Alar 843300, Xinjiang, China.
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Aljobaily N, Krutsinger K, Viereckl MJ, Joly R, Menlove B, Cone B, Suppes A, Han Y. Low-Dose Administration of Cannabigerol Attenuates Inflammation and Fibrosis Associated with Methionine/Choline Deficient Diet-Induced NASH Model via Modulation of Cannabinoid Receptor. Nutrients 2022; 15:nu15010178. [PMID: 36615835 PMCID: PMC9823433 DOI: 10.3390/nu15010178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/25/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
Non-Alcoholic Steatohepatitis (NASH) is the progressive form of Non-Alcoholic Fatty Liver Disease (NAFLD). NASH is distinguished by severe hepatic fibrosis and inflammation. The plant-derived, non-psychotropic compound cannabigerol (CBG) has potential anti-inflammatory effects similar to other cannabinoids. However, the impact of CBG on NASH pathology is still unknown. This study demonstrated the therapeutic potential of CBG in reducing hepatic steatosis, fibrosis, and inflammation. METHODS 8-week-old C57BL/6 male mice were fed with methionine/choline deficient (MCD) diet or control (CTR) diets for five weeks. At the beginning of week 4, mice were divided into three sub-groups and injected with either a vehicle, a low or high dose of CBG for two weeks. Overall health of the mice, Hepatic steatosis, fibrosis, and inflammation were evaluated. RESULTS Increased liver-to-body weight ratio was observed in mice fed with MCD diet, while a low dose of CBG treatment rescued the liver-to-body weight ratio. Hepatic ballooning and leukocyte infiltration were decreased in MCD mice with a low dose of CBG treatment, whereas the CBG treatment did not change the hepatic steatosis. The high dose CBG administration increased inflammation and fibrosis. Similarly, the expression of cannabinoid receptor (CB)1 and CB2 showed decreased expression with the low CBG dose but not with the high CBG dose intervention in the MCD group and were co-localized with mast cells. Additionally, the decreased mast cells were accompanied by decreased expression of transforming growth factor (TGF)-β1. CONCLUSIONS Collectively, the low dose of CBG alleviated hepatic fibrosis and inflammation in MCD-induced NASH, however, the high dose of CBG treatment showed enhanced liver damage when compared to MCD only group. These results will provide pre-clinical data to guide future intervention studies in humans addressing the potential uses of CBG for inflammatory liver pathologies, as well as open the door for further investigation into systemic inflammatory pathologies.
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Affiliation(s)
- Nouf Aljobaily
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT 84112, USA
| | - Kelsey Krutsinger
- Department of Biological Sciences, University of Northern Colorado, Greeley, CO 80639, USA
| | - Michael J. Viereckl
- Department of Biological Sciences, University of Northern Colorado, Greeley, CO 80639, USA
| | - Raznin Joly
- Department of Biological Sciences, University of Northern Colorado, Greeley, CO 80639, USA
| | - Bridger Menlove
- Department of Biological Sciences, University of Northern Colorado, Greeley, CO 80639, USA
| | - Brexton Cone
- Department of Biological Sciences, University of Northern Colorado, Greeley, CO 80639, USA
| | - Ailaina Suppes
- Department of Biological Sciences, University of Northern Colorado, Greeley, CO 80639, USA
| | - Yuyan Han
- Department of Biological Sciences, University of Northern Colorado, Greeley, CO 80639, USA
- Correspondence: ; Tel.: +1-970-351-2004
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Yan G, Li S, Wen Y, Luo Y, Huang J, Chen B, Lv S, Chen L, He L, He M, Yang Q, Yu Z, Xiao W, Tang Y, Li W, Han J, Zhao F, Yu S, Kong F, Abbasi B, Yin H, Gu C. Characteristics of intestinal microbiota in C57BL/6 mice with non-alcoholic fatty liver induced by high-fat diet. Front Microbiol 2022; 13:1051200. [PMID: 36620001 PMCID: PMC9813237 DOI: 10.3389/fmicb.2022.1051200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/25/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction As a representation of the gut microbiota, fecal and cecal samples are most often used in human and animal studies, including in non-alcoholic fatty liver disease (NAFLD) research. However, due to the regional structure and function of intestinal microbiota, whether it is representative to use cecal or fecal contents to study intestinal microbiota in the study of NAFLD remains to be shown. Methods The NAFLD mouse model was established by high-fat diet induction, and the contents of the jejunum, ileum, cecum, and colon (formed fecal balls) were collected for 16S rRNA gene analysis. Results Compared with normal mice, the diversity and the relative abundance of major bacteria and functional genes of the ileum, cecum and colon were significantly changed, but not in the jejunum. In NAFLD mice, the variation characteristics of microbiota in the cecum and colon (feces) were similar. However, the variation characteristics of intestinal microbiota in the ileum and large intestine segments (cecum and colon) were quite different. Discussion Therefore, the study results of cecal and colonic (fecal) microbiota cannot completely represent the results of jejunal and ileal microbiota.
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Affiliation(s)
- Guangwen Yan
- College of Animal Science, Xichang University, Xichang, China
| | - Shuaibing Li
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Yuhang Wen
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Yadan Luo
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Jingrong Huang
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Baoting Chen
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Shuya Lv
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Lang Chen
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Lvqin He
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Manli He
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Qian Yang
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Zehui Yu
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Wudian Xiao
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Yong Tang
- Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China,State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Weiyao Li
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Jianhong Han
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Fangfang Zhao
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Shumin Yu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Fang Kong
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China
| | - Benazir Abbasi
- College of Veterinary Medicine, Nanjing Agricultural University, Jiangsu, China
| | - Hongmei Yin
- College of Animal Science, Xichang University, Xichang, China,*Correspondence: Hongmei Yin,
| | - Congwei Gu
- Laboratory Animal Centre, Southwest Medical University, Luzhou, China,Model Animal and Human Disease Research of Luzhou Key Laboratory, Luzhou, China,College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China,Congwei Gu,
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Mitochondrial Peroxiredoxin III Protects against Non-Alcoholic Fatty Liver Disease Caused by a Methionine-Choline Deficient Diet. Antioxidants (Basel) 2022; 12:antiox12010009. [PMID: 36670871 PMCID: PMC9855157 DOI: 10.3390/antiox12010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is emerging as the most common chronic liver disease worldwide. In addition, NAFLD may increase the risk of cardiovascular and liver-related diseases, and displays features of metabolic syndrome. In NAFLD, oxidative stress is primarily caused by excessive free fatty acids. The oxidation of fatty acids is usually caused by β-oxidation of mitochondria under normal conditions, resulting in the production of energy. However, when the inflow of fatty acids in NAFLD becomes excessive, the β-oxidation of mitochondria becomes saturated and the oxidation process increases at sites including peroxisomes and microsomes, thereby increasing production of reactive oxygen species (ROS). Thus, hepatic mitochondrial ROS play an important role in the pathogenesis of NAFLD. Eliminating mitochondrial ROS may improve NAFLD, but the underlying mechanism remains unclear. We examined the effect of mitochondrial ROS on NAFLD by focusing on peroxiredoxin (Prx), an antioxidant protein that can remove hydrogen peroxide. The protective effect and pathological phenomenon of mitochondrial peroxiredoxin in methionine-choline deficient diet (MCD)-induced liver injury was assessed in a mouse model of NAFLD. In these mice, mitochondrial peroxiredoxin deficiency significantly increased hepatic steatosis and fibrosis. In addition, ablation of Prx III enhances susceptibility to MCD diet-induced oxidative stress and exacerbates NAFLD progression by promoting inflammation. The binding assay results also showed that Prx III-deficient mice had more severe liver damage than Prx III-abundant mice in MCD diet liver injury models. The present data suggest that mitochondrial peroxiredoxin III could be a therapeutic target for preventing and suppressing diet-induced NAFLD.
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Flessa CM, Nasiri-Ansari N, Kyrou I, Leca BM, Lianou M, Chatzigeorgiou A, Kaltsas G, Kassi E, Randeva HS. Genetic and Diet-Induced Animal Models for Non-Alcoholic Fatty Liver Disease (NAFLD) Research. Int J Mol Sci 2022; 23:ijms232415791. [PMID: 36555433 PMCID: PMC9780957 DOI: 10.3390/ijms232415791] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/05/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022] Open
Abstract
A rapidly increasing incidence of non-alcoholic fatty liver disease (NAFLD) is noted worldwide due to the adoption of western-type lifestyles and eating habits. This makes the understanding of the molecular mechanisms that drive the pathogenesis of this chronic disease and the development of newly approved treatments of utmost necessity. Animal models are indispensable tools for achieving these ends. Although the ideal mouse model for human NAFLD does not exist yet, several models have arisen with the combination of dietary interventions, genetic manipulations and/or administration of chemical substances. Herein, we present the most common mouse models used in the research of NAFLD, either for the whole disease spectrum or for a particular disease stage (e.g., non-alcoholic steatohepatitis). We also discuss the advantages and disadvantages of each model, along with the challenges facing the researchers who aim to develop and use animal models for translational research in NAFLD. Based on these characteristics and the specific study aims/needs, researchers should select the most appropriate model with caution when translating results from animal to human.
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Affiliation(s)
- Christina-Maria Flessa
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK
| | - Narjes Nasiri-Ansari
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Ioannis Kyrou
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Research Institute for Health and Wellbeing, Coventry University, Coventry CV1 5FB, UK
- Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece
| | - Bianca M. Leca
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK
| | - Maria Lianou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Antonios Chatzigeorgiou
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Gregory Kaltsas
- Endocrine Unit, 1st Department of Propaedeutic Internal Medicine, Laiko Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Eva Kassi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Endocrine Unit, 1st Department of Propaedeutic Internal Medicine, Laiko Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Correspondence: (E.K.); (H.S.R.)
| | - Harpal S. Randeva
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Correspondence: (E.K.); (H.S.R.)
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Fornari F, Giovannini C, Piscaglia F, Gramantieri L. Animal Models of Hepatocellular Carcinoma: Current Applications in Clinical Research. J Hepatocell Carcinoma 2022; 9:1263-1278. [DOI: 10.2147/jhc.s347946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022] Open
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Shedding light on non-alcoholic fatty liver disease: Pathogenesis, molecular mechanisms, models, and emerging therapeutics. Life Sci 2022; 312:121185. [PMID: 36375569 DOI: 10.1016/j.lfs.2022.121185] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disorder globally impacting an estimated 25% of the population associated with severe consequences such as cirrhosis, hepatocellular carcinoma (HCC), and overall mortality. Fatty liver disease is triggered through multiple pathways, but the most prominent cause is either diabetes or obesity, or a combination of both. Therefore, hepatic glucose, insulin and fatty acid signaling becomes a dire need to understand which is well elaborated in this review. This review summarizes the popular two-hit pathogenesis of NAFLD, the molecular mechanisms underlying hepatic insulin resistance. As fatty liver disease gets advanced, it requires in-vitro as well as in-vivo models closer to disease progression in humans for better understanding the pathological state and identifying a novel therapeutic target. This review summarizes in-vitro (2D cell-culture/co-culture, 3D spheroid/organoid/liver-on-a-chip) models as well as in-vivo (genetically/dietary/chemically induced fatty liver disease) research models. Fatty liver disease research has gathered lots of attention recently since there is no FDA approved therapy available so far. However, there have been numerous promising targets to treat fatty liver disease including potential therapeutic targets under clinical trials are listed in this review.
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Lactobacillus sakei MJM60958 as a Potential Probiotic Alleviated Non-Alcoholic Fatty Liver Disease in Mice Fed a High-Fat Diet by Modulating Lipid Metabolism, Inflammation, and Gut Microbiota. Int J Mol Sci 2022; 23:ijms232113436. [PMID: 36362221 PMCID: PMC9658623 DOI: 10.3390/ijms232113436] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a common liver disease with a rapidly increasing number of cases worldwide. This study aimed to evaluate the effects of Lactobacillus sakei MJM60958 (MJM60958) on NAFLD in vitro and in vivo. In in vitro tests, MJM60958 significantly inhibited lipid accumulation by 46.79% in HepG2 cells stimulated with oleic acid and cholesterol (OA-C). Moreover, MJM60958 showed safe and probiotic characteristics in vitro. In the animal study, MJM60958 administration in a high-fat diet-induced NAFLD mouse model significantly reduced body weight and liver weight, and controlled aspartate aminotransferase (ALT), aspartate transaminase (AST), triglyceride (TG), urea nitrogen (BUN), and uric acid (UA) levels in the blood, which are features of NAFLD. Further, treatment with MJM60958 also reduced steatosis scores in liver tissues, serum leptin and interleukin, and increased serum adiponectin content. Moreover, administration of MJM60958 resulted in a significantly decreased expression of some genes and proteins which are related to lipid accumulation, such as fatty acid synthase (FAS), acetyl-CoA carboxylase (ACC), and sterol regulatory element-binding protein 1 (SREBP-1), and also upregulated genes and protein expression of lipid oxidation such as peroxisome proliferator-activated receptor alpha (PPARα) and carnitine palmitoyltransferase 1a (CPT1A). Administration of MJM60958 increased the relative abundance of specific microbial taxa such as Verrucomicrobia, which are abundant in non-NAFLD mice, and reduced Firmicutes, which are a major group in NAFLD mice. MJM60958 affected the modulation of gut microbiota and altered the strain profile of short-chain fatty acids (SCFAs) production in the cecum by reduced lactic acid and enhanced acetic acid production. Overall, MJM60958 showed potential as a probiotic that can prevent and treat NAFLD.
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Zandani G, Anavi-Cohen S, Yudelevich T, Nyska A, Dudai N, Madar Z, Gorelick J. Chiliadenus iphionoides Reduces Body Weight and Improves Parameters Related to Hepatic Lipid and Glucose Metabolism in a High-Fat-Diet-Induced Mice Model of NAFLD. Nutrients 2022; 14:nu14214552. [PMID: 36364811 PMCID: PMC9657349 DOI: 10.3390/nu14214552] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/21/2022] [Accepted: 10/22/2022] [Indexed: 11/29/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) has become an epidemic with increasing prevalence. Limited treatment options and poor adherence emphasize the urgent need for novel therapies for the treatment and/or prevention of NAFLD. Bioactive natural compounds found in medicinal plants are promising as novel therapeutic agents for NAFLD. Chiliadenus iphionoides, a medicinal plant with several health-promoting properties, is an encouraging candidate. The current study aimed to elucidate the metabolic effects of C. iphionoides consumption in a high-fat-diet (HFD)-induced model of NAFLD. Male C57BL/6J mice (n = 40, 7–8-week-old) were fed a HFD (60% fat) with/without 0.5 or 2.5 gr C. iphionoides for fifteen weeks. Diet supplementation with C. iphionoides significantly ameliorated HFD-induced weight gain. Likewise, liver and adipose tissue weights were profoundly lower in the C. iphionoides-fed groups. Reduced liver steatosis in those groups was corroborated by histology, plasma liver enzyme levels, and lipid profile, indicating improved liver function and lipid metabolism in addition to enhanced insulin sensitivity. The addition of C. iphionoides to an obesogeneic diet can beneficially alleviate metabolic alterations and may be a practicable strategy for the management of NAFLD.
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Affiliation(s)
- Gil Zandani
- The Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7670110, Israel
| | - Sarit Anavi-Cohen
- School of Nutritional Sciences, Peres Academic Center, Rehovot 7610202, Israel
| | - Tamar Yudelevich
- The Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7670110, Israel
| | - Abraham Nyska
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Nativ Dudai
- Unit of Medicinal and Aromatic Plants, Newe Ya’ar Research Center, Agricultural Research Organization, Ramat Yishay 30095, Israel
| | - Zecharia Madar
- The Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7670110, Israel
| | - Jonathan Gorelick
- Eastern Regional R&D Center, Kiryat Arba 90100, Israel
- Correspondence:
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48
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Akbari G, Mard SA, Savari F, Barati B, Sameri MJ. Characterization of diet based nonalcoholic fatty liver disease/nonalcoholic steatohepatitis in rodent models: Histological and biochemical outcomes. Histol Histopathol 2022; 37:813-824. [PMID: 35475465 DOI: 10.14670/hh-18-462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD), as the most common chronic liver disease, is rapidly increasing worldwide. This complex disorder can include simple liver steatosis to more serious stages of nonalcoholic fibrosis and steatohepatitis (NASH). One of the critical concerns in NASH research is selecting and confiding in relying on preclinical animal models and experimental methods that can accurately reflect the situation in human NASH. Recently, creating nutritional models of NASH with a closer dietary pattern in human has been providing reliable, simple, and reproducible tools that hope to create a better landscape for showing the recapitulation of disease pathophysiology. This review focuses on recent research on rodent models (mice, rats, and hamsters) in the induction of the dietary model of NAFLD /NASH. This research tries to compile the different dietary compositions of NASH, time frames required for disease development, and their impact on liver histological features as well as metabolic parameters.
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Affiliation(s)
- Ghaidafeh Akbari
- Medical Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Seyyed Ali Mard
- Clinical Sciences Research Institute, Alimentary Tract Research Center, Department of Physiology, The school of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Feryal Savari
- Department of Basic Sciences, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran.
| | - Barat Barati
- Department of Radiologic Technology, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
| | - Maryam J Sameri
- Department of Physiology, The School of Medicine, Ahvaz Jundishpur University of Medical Sciences, Ahvaz, Iran
- Department of Physiology, The School of Medicine, Abadan University of Medical Sciences, Abadan, Iran
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Yang Y, Liu X, Chen H, Wang P, Yao S, Zhou B, Yin R, Li C, Wu C, Yang X, Yu M. HPS protects the liver against steatosis, cell death, inflammation, and fibrosis in mice with steatohepatitis. FEBS J 2022; 289:5279-5304. [PMID: 35285180 DOI: 10.1111/febs.16430] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/20/2022] [Accepted: 03/10/2022] [Indexed: 12/14/2022]
Abstract
Hepassocin (HPS) is a hepatokine associated with metabolic regulation and development of non-alcoholic steatohepatitis (NASH). However, previous reports on HPS are controversial and its true function is not yet understood. Here, we demonstrated that hepatic HPS expression levels were upregulated in short-term feeding and downregulated in long-term feeding in high-fat diet (HFD)- and methionine- and choline-deficient (MCD) diet-fed mice, as well as in genetically obese (ob/ob) mice. HFD- and MCD-induced hepatic steatosis, inflammation, apoptosis, and fibrosis were more pronounced in HPS knockout mice than in the wild-type mice. Moreover, HPS depletion aggravated HFD-induced insulin resistance. By contrast, HPS administration improved MCD- or HFD-induced liver phenotypes and insulin resistance in HPS knockout and wild-type mice. Mechanistic studies revealed that MCD-induced hepatic oxidative stress was significantly increased by HPS deficiency and could be attenuated by HPS administration. Furthermore, palmitic acid-induced lipid accumulation and oxidative stress were exclusively enhanced in HPS knockout hepatocytes and diminished by HPS cotreatment. These data suggest that HPS ameliorates NASH in mice, at least in part, by inhibiting the oxidative stress. HPS expression levels are downregulated in human fatty liver tissues, suggesting that it may play an important protective role in NASH. Collectively, our findings provide clear genetic evidence that HPS has beneficial effects on the development of steatohepatitis in mice and suggest that upregulating HPS signaling may represent an effective treatment strategy for NASH.
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Affiliation(s)
- Yang Yang
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, China
| | - Xian Liu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Institute of Lifeomics, Beijing, China
| | - Hui Chen
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Institute of Lifeomics, Beijing, China
| | - Pengjun Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Institute of Lifeomics, Beijing, China
| | - Songhui Yao
- Institute of Life Sciences, HeBei University, Baoding, China
| | - Bin Zhou
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Institute of Lifeomics, Beijing, China
| | - Ronghua Yin
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Institute of Lifeomics, Beijing, China
| | - Changyan Li
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Institute of Lifeomics, Beijing, China
| | - Chutse Wu
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, China.,Beijing Institute of Radiation Medicine, China
| | - Xiaoming Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Institute of Lifeomics, Beijing, China
| | - Miao Yu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Institute of Lifeomics, Beijing, China.,Institute of Life Sciences, HeBei University, Baoding, China
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50
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Kandhi R, Variya B, Ramanathan S, Ilangumaran S. An improved method for isolation and flow cytometric characterization of intrahepatic leukocytes from fatty and fibrotic liver tissues. Anat Rec (Hoboken) 2022; 306:1011-1030. [PMID: 35848859 DOI: 10.1002/ar.25039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/28/2022] [Accepted: 06/28/2022] [Indexed: 12/11/2022]
Abstract
Flow cytometry is an imperative tool to characterize alterations in a wide range of immune cell populations during inflammatory conditions and disease states that affect the liver such as the obesity-induced non-alcoholic fatty liver disease and liver fibrosis. Identification and quantification of immune cell subsets from the liver is critically dependent on efficient isolation of intrahepatic leukocytes. The isolation of leukocytes from fatty and fibrotic livers and processing the cells for flow cytometry can be challenging with respect to cell yields, purity and most importantly, the level of autofluorescence resulting from fat deposition. Here, we describe an efficient method for isolating intrahepatic leukocytes from mice fed with high fat diet and propose a strategy to alleviate autofluorescence during phenotyping by multicolor flowcytometry. We also describe a gating strategy for robust identification of granulocytes, pro-inflammatory, anti-inflammatory and transitional state monocyte subsets, dendritic cells, B cell, T lymphocyte subpopulations and NK cell subsets. Overall, the procedures described here will allow simultaneous processing of several samples while ensuring reproducible cell isolation and efficient noise reduction required for reliable characterization of intrahepatic leukocytes from the fatty liver tissues.
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Affiliation(s)
- Rajani Kandhi
- Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Québec, Canada
| | - Bhavesh Variya
- Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Québec, Canada
| | - Sheela Ramanathan
- Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Québec, Canada
| | - Subburaj Ilangumaran
- Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Québec, Canada
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