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Gao J, Lan T, Kostallari E, Guo Y, Lai E, Guillot A, Ding B, Tacke F, Tang C, Shah VH. Angiocrine signaling in sinusoidal homeostasis and liver diseases. J Hepatol 2024; 81:543-561. [PMID: 38763358 DOI: 10.1016/j.jhep.2024.05.014] [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: 12/29/2023] [Revised: 04/29/2024] [Accepted: 05/10/2024] [Indexed: 05/21/2024]
Abstract
The hepatic sinusoids are composed of liver sinusoidal endothelial cells (LSECs), which are surrounded by hepatic stellate cells (HSCs) and contain liver-resident macrophages called Kupffer cells, and other patrolling immune cells. All these cells communicate with each other and with hepatocytes to maintain sinusoidal homeostasis and a spectrum of hepatic functions under healthy conditions. Sinusoidal homeostasis is disrupted by metabolites, toxins, viruses, and other pathological factors, leading to liver injury, chronic liver diseases, and cirrhosis. Alterations in hepatic sinusoids are linked to fibrosis progression and portal hypertension. LSECs are crucial regulators of cellular crosstalk within their microenvironment via angiocrine signaling. This review discusses the mechanisms by which angiocrine signaling orchestrates sinusoidal homeostasis, as well as the development of liver diseases. Here, we summarise the crosstalk between LSECs, HSCs, hepatocytes, cholangiocytes, and immune cells in health and disease and comment on potential novel therapeutic methods for treating liver diseases.
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Affiliation(s)
- Jinhang Gao
- Laboratory of Gastroenterology and Hepatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China; Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Tian Lan
- Laboratory of Gastroenterology and Hepatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China; Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China; Department of Hepatology and Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Enis Kostallari
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Yangkun Guo
- Laboratory of Gastroenterology and Hepatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China; Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Enjiang Lai
- Laboratory of Gastroenterology and Hepatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China; Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Adrien Guillot
- Department of Hepatology and Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Bisen Ding
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Frank Tacke
- Department of Hepatology and Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany.
| | - Chengwei Tang
- Laboratory of Gastroenterology and Hepatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China; Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.
| | - Vijay H Shah
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA.
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2
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Tao HZ, He WB, Ding L, Wen L, Xu Z, Cheng YH, Chen ML. Enrichment of antioxidant peptide from rice protein hydrolysates via rice husk derived biochar. Food Chem 2024; 463:141050. [PMID: 39236384 DOI: 10.1016/j.foodchem.2024.141050] [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: 07/09/2024] [Revised: 08/25/2024] [Accepted: 08/28/2024] [Indexed: 09/07/2024]
Abstract
In this study, rice husk biochar was engineered with abundant iron ion sites to enhance the enrichment of antioxidant peptides from rice protein hydrolysates through metal-chelating interactions. The π-π interactions and metal ion chelation were identified as the primary mechanisms for the enrichment process. Through peptide sequencing, four peptides were identified: LKFL (P1: Leu-Lys-Phe-Leu), QLLF (P2: Gln-Leu-Leu-Phe), WLAYG (P3: Trp-Leu-Ala-Tyr-Gly), and HFCGG (P4: His-Phe-Cys-Gly-Gly). The vitro analysis and molecular docking revealed that peptides P1-P4 possessed remarkable scavenging ability against radicals and Fe2+ chelating ability. Notably, peptide P4 showed radical scavenging activity comparable to glutathione (GSH) against 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis-3-ethylbenzthiazoline-6-sulphonate (ABTS) radicals. Cellular experiments further confirmed that peptide P4 effectively protected HepG2 cells from oxidative stress-induced damage. The modified rice husk biochar proved to be an effective means for enriching rice antioxidant peptides from protein hydrolysates.
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Affiliation(s)
- Hui-Zhen Tao
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
| | - Wen-Bin He
- Hunan Provincial Institute of Product and Goods Quality Inspection, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan, China 410007
| | - Li Ding
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
| | - Li Wen
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
| | - Zhou Xu
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
| | - Yun-Hui Cheng
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China.
| | - Mao-Long Chen
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China.
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Mishra F, Yuan Y, Yang JJ, Li B, Chan P, Liu Z. Depletion of Activated Hepatic Stellate Cells and Capillarized Liver Sinusoidal Endothelial Cells Using a Rationally Designed Protein for Nonalcoholic Steatohepatitis and Alcoholic Hepatitis Treatment. Int J Mol Sci 2024; 25:7447. [PMID: 39000553 PMCID: PMC11242029 DOI: 10.3390/ijms25137447] [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: 06/02/2024] [Revised: 06/28/2024] [Accepted: 07/01/2024] [Indexed: 07/16/2024] Open
Abstract
Nonalcoholic steatohepatitis (NASH) and alcoholic hepatitis (AH) affect a large part of the general population worldwide. Dysregulation of lipid metabolism and alcohol toxicity drive disease progression by the activation of hepatic stellate cells and the capillarization of liver sinusoidal endothelial cells. Collagen deposition, along with sinusoidal remodeling, alters sinusoid structure, resulting in hepatic inflammation, portal hypertension, liver failure, and other complications. Efforts were made to develop treatments for NASH and AH. However, the success of such treatments is limited and unpredictable. We report a strategy for NASH and AH treatment involving the induction of integrin αvβ3-mediated cell apoptosis using a rationally designed protein (ProAgio). Integrin αvβ3 is highly expressed in activated hepatic stellate cells (αHSCs), the angiogenic endothelium, and capillarized liver sinusoidal endothelial cells (caLSECs). ProAgio induces the apoptosis of these disease-driving cells, therefore decreasing collagen fibril, reversing sinusoid remodeling, and reducing immune cell infiltration. The reversal of sinusoid remodeling reduces the expression of leukocyte adhesion molecules on LSECs, thus decreasing leukocyte infiltration/activation in the diseased liver. Our studies present a novel and effective approach for NASH and AH treatment.
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Affiliation(s)
- Falguni Mishra
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA
| | - Yi Yuan
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA
| | - Jenny J Yang
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA
| | - Bin Li
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA
| | - Payton Chan
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA
| | - Zhiren Liu
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA
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4
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Patil VS, Harish DR, Sampat GH, Roy S, Jalalpure SS, Khanal P, Gujarathi SS, Hegde HV. System Biology Investigation Revealed Lipopolysaccharide and Alcohol-Induced Hepatocellular Carcinoma Resembled Hepatitis B Virus Immunobiology and Pathogenesis. Int J Mol Sci 2023; 24:11146. [PMID: 37446321 DOI: 10.3390/ijms241311146] [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: 04/14/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 07/15/2023] Open
Abstract
Hepatitis B infection caused by the hepatitis B virus is a life-threatening cause of liver fibrosis, cirrhosis, and hepatocellular carcinoma. Researchers have produced multiple in vivo models for hepatitis B virus (HBV) and, currently, there are no specific laboratory animal models available to study HBV pathogenesis or immune response; nonetheless, their limitations prevent them from being used to study HBV pathogenesis, immune response, or therapeutic methods because HBV can only infect humans and chimpanzees. The current study is the first of its kind to identify a suitable chemically induced liver cirrhosis/HCC model that parallels HBV pathophysiology. Initially, data from the peer-reviewed literature and the GeneCards database were compiled to identify the genes that HBV and seven drugs (acetaminophen, isoniazid, alcohol, D-galactosamine, lipopolysaccharide, thioacetamide, and rifampicin) regulate. Functional enrichment analysis was performed in the STRING server. The network HBV/Chemical, genes, and pathways were constructed by Cytoscape 3.6.1. About 1546 genes were modulated by HBV, of which 25.2% and 17.6% of the genes were common for alcohol and lipopolysaccharide-induced hepatitis. In accordance with the enrichment analysis, HBV activates the signaling pathways for apoptosis, cell cycle, PI3K-Akt, TNF, JAK-STAT, MAPK, chemokines, NF-kappa B, and TGF-beta. In addition, alcohol and lipopolysaccharide significantly activated these pathways more than other chemicals, with higher gene counts and lower FDR scores. In conclusion, alcohol-induced hepatitis could be a suitable model to study chronic HBV infection and lipopolysaccharide-induced hepatitis for an acute inflammatory response to HBV.
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Affiliation(s)
- Vishal S Patil
- ICMR-National Institute of Traditional Medicine, Nehru Nagar, Belagavi 590010, India
- KLE College of Pharmacy, Belagavi, KLE Academy of Higher Education and Research, Belagavi 590010, India
| | - Darasaguppe R Harish
- ICMR-National Institute of Traditional Medicine, Nehru Nagar, Belagavi 590010, India
| | - Ganesh H Sampat
- ICMR-National Institute of Traditional Medicine, Nehru Nagar, Belagavi 590010, India
- KLE College of Pharmacy, Belagavi, KLE Academy of Higher Education and Research, Belagavi 590010, India
| | - Subarna Roy
- ICMR-National Institute of Traditional Medicine, Nehru Nagar, Belagavi 590010, India
| | - Sunil S Jalalpure
- KLE College of Pharmacy, Belagavi, KLE Academy of Higher Education and Research, Belagavi 590010, India
| | - Pukar Khanal
- KLE College of Pharmacy, Belagavi, KLE Academy of Higher Education and Research, Belagavi 590010, India
| | - Swarup S Gujarathi
- ICMR-National Institute of Traditional Medicine, Nehru Nagar, Belagavi 590010, India
- KLE College of Pharmacy, Belagavi, KLE Academy of Higher Education and Research, Belagavi 590010, India
| | - Harsha V Hegde
- ICMR-National Institute of Traditional Medicine, Nehru Nagar, Belagavi 590010, India
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5
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McConnell MJ, Iwakiri Y. Portal Hypertension in Alcohol-Associated Hepatitis. CURRENT HEPATOLOGY REPORTS 2023; 22:67-73. [PMCID: PMC10075503 DOI: 10.1007/s11901-023-00601-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/23/2023] [Indexed: 04/08/2023]
Abstract
Purpose of Review This review article will examine portal hypertension in alcoholic hepatitis (AH) from both a basic mechanistic and a clinical perspective. Recent Findings Alcoholic hepatitis is a major public health problem in the USA, accounting for over 300,000 hospital admissions in a recent year of data (Jinjuvadia et al. J Clin Gastroenterol. 60;49:506–511). Portal hypertension is a key consequence of AH and a driver of liver-related morbidity and mortality. Alcohol may directly mediate portal hypertension via multiple possible mechanisms, including increased portal inflow, increased intrahepatic vasoconstriction, inflammation, and changes in the liver vasculature such as perisinusoidal fibrosis and phlebosclerosis. Summary Portal hypertension is a key consequence of AH and a critical area for future research.
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Affiliation(s)
- Matthew J. McConnell
- grid.47100.320000000419368710Section of Digestive Diseases, Department of Internal Medicine, Yale School of Medicine, 1080 LMP, 333 Cedar Street, New Haven, CT 06520 USA
| | - Yasuko Iwakiri
- grid.47100.320000000419368710Section of Digestive Diseases, Department of Internal Medicine, Yale School of Medicine, 1080 LMP, 333 Cedar Street, New Haven, CT 06520 USA
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6
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Hu YY, Xiao S, Wang B, Xie RH, Cai YX, Wang JH. Transepithelial transport and cytoprotection of novel antioxidant peptides isolated from simulated gastrointestinal digestion of Xuanwei ham. Food Funct 2023; 14:3552-3563. [PMID: 36945861 DOI: 10.1039/d2fo03614b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
As a traditional fermented meat product, dry-cured Xuanwei ham could be a rich source of bioactive peptides. This study intended to investigate the transepithelial transport and cytoprotection of antioxidant peptides isolated from simulated gastrointestinal digestion of Xuanwei ham. Through ultrafiltration and gel filtration chromatography after simulated digestion, five new antioxidative cell-penetrating peptides (CPPs) with 16-27 amino acid residues were identified, and protective effects of the pretreatment with GHYTEGAELVDSVLDVVRK (GK-19) and TDEFQLHTNVNDGTEFGGSIYQK (TK-23) on H2O2-induced damaged HepG2 cells were investigated. The results showed that the peptide TK-23 at 0.5 mg mL-1 showed a good antioxidant activity through upregulating the activity of antioxidant enzymes (CAT, SOD and GR) and decreasing the MDA level in H2O2-induced damaged HepG2 cells with a better protective effect compared to GSH. Our observations of novel antioxidant CPPs with 16-27 amino acid residues could enrich the antioxidative CPP database, and these findings could provide data support for further study of CPPs.
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Affiliation(s)
- Yao-Yao Hu
- College of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China.
- School of Life Healthy and Technology, Dongguan University of Technology, Dongguan, 523808, China
| | - Shan Xiao
- College of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China.
- School of Life Healthy and Technology, Dongguan University of Technology, Dongguan, 523808, China
| | - Bo Wang
- School of Life Healthy and Technology, Dongguan University of Technology, Dongguan, 523808, China
| | - Rui-Hong Xie
- College of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China.
- School of Life Healthy and Technology, Dongguan University of Technology, Dongguan, 523808, China
| | - Yan-Xue Cai
- School of Life Healthy and Technology, Dongguan University of Technology, Dongguan, 523808, China
| | - Ji-Hui Wang
- College of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China.
- School of Life Healthy and Technology, Dongguan University of Technology, Dongguan, 523808, China
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7
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Yang H, Zhang P, Wang Q, Cheng K, Zhao Y. The research development of STAT3 in hepatic ischemia-reperfusion injury. Front Immunol 2023; 14:1066222. [PMID: 36761734 PMCID: PMC9902876 DOI: 10.3389/fimmu.2023.1066222] [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: 10/10/2022] [Accepted: 01/10/2023] [Indexed: 01/25/2023] Open
Abstract
Ischemia-reperfusion injury (IRI) is a common complication of surgery, which can cause rapid deterioration of the liver function, increase the risk of graft rejection, and seriously affect the prognosis of patients. The signal transducer and activator of transcription 3 (STAT3) protein has been implicated in pathogenesis of IRI. STAT3 influences the mitochondria through multiple pathways and is also involved in apoptosis and other forms of programmed cell death. STAT3 is associated with Janus kinase (JAK), phosphoinositide-3 kinase (PI3K), and heme oxygenase-1 (HO-1) in liver IRI. The STAT3 pathway plays a dual role in IRI as it can also regulate lipid metabolism which may have potential for treating IRI fatty liver. In this review, we summarize research on the function of STAT3 in liver IRI to provide references for its application in the clinic.
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Affiliation(s)
| | | | | | | | - Yujun Zhao
- Engineering and Technology Research Center for Transplantation Medicine of National Health Comission, Third Xiangya Hospital, Central South University, Changsha, China
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8
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Lazcanoiturburu N, García‐Sáez J, González‐Corralejo C, Roncero C, Sanz J, Martín‐Rodríguez C, Valdecantos MP, Martínez‐Palacián A, Almalé L, Bragado P, Calero‐Pérez S, Fernández A, García‐Bravo M, Guerra C, Montoliu L, Segovia JC, Valverde ÁM, Fabregat I, Herrera B, Sánchez A. Lack of
EGFR
catalytic activity in hepatocytes improves liver regeneration following
DDC
‐induced cholestatic injury by promoting a pro‐restorative inflammatory response. J Pathol 2022; 258:312-324. [DOI: 10.1002/path.6002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/22/2022] [Accepted: 08/15/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Nerea Lazcanoiturburu
- Dept. Biochemistry and Molecular Biology, Faculty of Pharmacy Complutense University of Madrid (UCM) Health Research Institute of the “Hospital Clínico San Carlos” (IdISSC), Madrid Spain
| | - Juan García‐Sáez
- Dept. Biochemistry and Molecular Biology, Faculty of Pharmacy Complutense University of Madrid (UCM) Health Research Institute of the “Hospital Clínico San Carlos” (IdISSC), Madrid Spain
| | - Carlos González‐Corralejo
- Dept. Biochemistry and Molecular Biology, Faculty of Pharmacy Complutense University of Madrid (UCM) Health Research Institute of the “Hospital Clínico San Carlos” (IdISSC), Madrid Spain
| | - Cesáreo Roncero
- Dept. Biochemistry and Molecular Biology, Faculty of Pharmacy Complutense University of Madrid (UCM) Health Research Institute of the “Hospital Clínico San Carlos” (IdISSC), Madrid Spain
| | - Julián Sanz
- Anatomical Pathology Service of the “Clínica Universidad de Navarra”, Madrid, Spain, and UCM Madrid Spain
| | - Carlos Martín‐Rodríguez
- Dept. Biochemistry and Molecular Biology, Faculty of Pharmacy Complutense University of Madrid (UCM) Health Research Institute of the “Hospital Clínico San Carlos” (IdISSC), Madrid Spain
| | - M. Pilar Valdecantos
- “Alberto Sols” Biomedical Research Institute, Spanish National Research Council and Autonomous University of Madrid (IIBM, CSIC‐UAM) Biomedical Research Networking Center in Diabetes and Associated Metabolic Disorders of the Carlos III Health Institute (CIBERDEM‐ISCIII) Madrid Spain
| | - Adoración Martínez‐Palacián
- Dept. Biochemistry and Molecular Biology, Faculty of Pharmacy Complutense University of Madrid (UCM) Health Research Institute of the “Hospital Clínico San Carlos” (IdISSC), Madrid Spain
| | - Laura Almalé
- Dept. Biochemistry and Molecular Biology, Faculty of Pharmacy Complutense University of Madrid (UCM) Health Research Institute of the “Hospital Clínico San Carlos” (IdISSC), Madrid Spain
| | - Paloma Bragado
- Dept. Biochemistry and Molecular Biology, Faculty of Pharmacy Complutense University of Madrid (UCM) Health Research Institute of the “Hospital Clínico San Carlos” (IdISSC), Madrid Spain
| | - Silvia Calero‐Pérez
- “Alberto Sols” Biomedical Research Institute, Spanish National Research Council and Autonomous University of Madrid (IIBM, CSIC‐UAM) Biomedical Research Networking Center in Diabetes and Associated Metabolic Disorders of the Carlos III Health Institute (CIBERDEM‐ISCIII) Madrid Spain
| | - Almudena Fernández
- National Center for Biotechnology (CNB‐CSIC), Biomedical Research Networking Center on Rare Diseases (CIBERER‐ISCIII) Madrid Spain
| | - María García‐Bravo
- Cell Technology Division, Research Center for Energy, Environment and Technology (CIEMAT); Biomedical Research Networking Center on Rare Diseases (CIBERER‐ISCIII); Advanced Therapies Mixed Unit, “Fundación Jiménez Díaz” University Hospital Health Research Institute (CIEMAT/IIS‐FJD) Madrid Spain
| | - Carmen Guerra
- Molecular Oncology Programme, Spanish National Cancer Research Center (CNIO), Madrid Spain
| | - Lluis Montoliu
- National Center for Biotechnology (CNB‐CSIC), Biomedical Research Networking Center on Rare Diseases (CIBERER‐ISCIII) Madrid Spain
| | - José Carlos Segovia
- Cell Technology Division, Research Center for Energy, Environment and Technology (CIEMAT); Biomedical Research Networking Center on Rare Diseases (CIBERER‐ISCIII); Advanced Therapies Mixed Unit, “Fundación Jiménez Díaz” University Hospital Health Research Institute (CIEMAT/IIS‐FJD) Madrid Spain
| | - Ángela M. Valverde
- “Alberto Sols” Biomedical Research Institute, Spanish National Research Council and Autonomous University of Madrid (IIBM, CSIC‐UAM) Biomedical Research Networking Center in Diabetes and Associated Metabolic Disorders of the Carlos III Health Institute (CIBERDEM‐ISCIII) Madrid Spain
| | - Isabel Fabregat
- TGF‐β and Cancer Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL) , Barcelona, Spain; Oncology Program, Biomedical Research Networking Center in Hepatic and Digestive Diseases (CIBEREHD‐ISCIII), Madrid, Spain; Department of Physiological Sciences Faculty of Medicine and Health Sciences, University of Barcelona (UB) Barcelona Spain
| | - Blanca Herrera
- Dept. Biochemistry and Molecular Biology, Faculty of Pharmacy Complutense University of Madrid (UCM) Health Research Institute of the “Hospital Clínico San Carlos” (IdISSC), Madrid Spain
| | - Aránzazu Sánchez
- Dept. Biochemistry and Molecular Biology, Faculty of Pharmacy Complutense University of Madrid (UCM) Health Research Institute of the “Hospital Clínico San Carlos” (IdISSC), Madrid Spain
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Ahmad SB, Rashid SM, Wali AF, Ali S, Rehman MU, Maqbool MT, Nadeem A, Ahmad SF, Siddiqui N. Myricetin (3,3 ',4 ',5,5 ',7-hexahydroxyflavone) prevents ethanol-induced biochemical and inflammatory damage in the liver of Wistar rats. Hum Exp Toxicol 2022; 41:9603271211066843. [PMID: 35156864 DOI: 10.1177/09603271211066843] [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] [Indexed: 11/17/2022]
Abstract
Purpose: The current investigation was carried out to evaluate the efficacy of myricetin in ethanol-induced liver toxicity in Wistar rats. Research Design: Twenty-four rats were randomly divided into four groups with six animals per group. Group-I animals were administered with vehicle (distilled water), Group II, III, and IV were treated orally with sequential (per week) increase in the dose of ethanol (5, 8, 10, and 12 g/kg b wt per week in each group) for 28 days. Myricetin was treated orally to Group-III and IV animals at the respective doses of 25 mg/kg b wt. and 50 mg/kg b wt. Results: Our results showed that myricetin prevented hepatotoxicity by modulating the production of free radicals, ethanol metabolizing enzymes, and inflammatory markers in vivo. Myricetin also helped maintain lipid membrane integrity, oxidant-antioxidant status, and histoarchitecture. Ethanol administration caused elevation in XO, ADH, and CYP2E1 in hepatic tissue, which significantly normalized with myricetin administration. After ethanol administration, there was a steep increase in the hepatotoxicity biomarkers, including ALT, MDA, and AST. The level of cytotoxicity marker LDH also increased after ethanol administration; myricetin administration decreased the level of all these markers. Moreover, myricetin treatment also reduced ethanol-induced inflammatory markers such as NF-κB and IL-6. Conclusion: Findings from the current study demonstrate that myricetin administration prevents alcohol-induced hepatic injury by influencing the metabolism of ethanol, inhibiting oxidative stress, maintaining lipid profile, and suppressing inflammatory markers.
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Affiliation(s)
- Sheikh Bilal Ahmad
- Division of Veterinary Biochemistry, Faculty of Veterinary Science and Animal Husbandry, 77177SKUAST-Kashmir, Srinagar, J&K, India
| | - Shahzada Mudaisr Rashid
- Division of Veterinary Biochemistry, Faculty of Veterinary Science and Animal Husbandry, 77177SKUAST-Kashmir, Srinagar, J&K, India
| | - Adil Farooq Wali
- Department of Pharmaceutical Chemistry, RAK College of Pharmaceutical Sciences, 286661RAK Medical and Health Sciences University, Ras Al Khaimah, UAE
| | - Shafat Ali
- Department of Biochemistry, Government Medical College, (GMC-Srinagar), KaranNagar Srinagar, J&K, India
| | - Muneeb U Rehman
- Department of Clinical Pharmacy, College of Pharmacy, 37850King Saud University, Riyadh, Saudi Arabia
| | - Mir Tahir Maqbool
- National Center for Natural Products Research, School of Pharmacy, 8083University of Mississippi, University, MS, USA
| | - Ahmed Nadeem
- Department of Pharmacology & Toxicology, College of Pharmacy, 37850King Saud University, Riyadh, Saudi Arabia
| | - Sheikh Fayaz Ahmad
- Department of Pharmacology & Toxicology, College of Pharmacy, 37850King Saud University, Riyadh, Saudi Arabia
| | - Nahid Siddiqui
- Amity Institute of Biotechnology, 77282Amity University, Noida, Uttar Pradesh, India
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10
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Wang L, Astone M, Alam SK, Zhu Z, Pei W, Frank DA, Burgess SM, Hoeppner LH. Suppressing STAT3 activity protects the endothelial barrier from VEGF-mediated vascular permeability. Dis Model Mech 2021; 14:272222. [PMID: 34542605 PMCID: PMC8592016 DOI: 10.1242/dmm.049029] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 09/10/2021] [Indexed: 12/27/2022] Open
Abstract
Vascular permeability triggered by inflammation or ischemia promotes edema, exacerbates disease progression and impairs tissue recovery. Vascular endothelial growth factor (VEGF) is a potent inducer of vascular permeability. VEGF plays an integral role in regulating vascular barrier function physiologically and in pathologies, including cancer, stroke, cardiovascular disease, retinal conditions and COVID-19-associated pulmonary edema, sepsis and acute lung injury. Understanding temporal molecular regulation of VEGF-induced vascular permeability will facilitate developing therapeutics to inhibit vascular permeability, while preserving tissue-restorative angiogenesis. Here, we demonstrate that VEGF signals through signal transducer and activator of transcription 3 (STAT3) to promote vascular permeability. We show that genetic STAT3 ablation reduces vascular permeability in STAT3-deficient endothelium of mice and VEGF-inducible zebrafish crossed with CRISPR/Cas9-generated Stat3 knockout zebrafish. Intercellular adhesion molecule 1 (ICAM-1) expression is transcriptionally regulated by STAT3, and VEGF-dependent STAT3 activation is regulated by JAK2. Pyrimethamine, an FDA-approved antimicrobial agent that inhibits STAT3-dependent transcription, substantially reduces VEGF-induced vascular permeability in zebrafish, mouse and human endothelium. Collectively, our findings suggest that VEGF/VEGFR-2/JAK2/STAT3 signaling regulates vascular barrier integrity, and inhibition of STAT3-dependent activity reduces VEGF-induced vascular permeability. This article has an associated First Person interview with the first author of the paper. Summary: Genetic STAT3 ablation in mice and VEGF-inducible zebrafish reveals that VEGF signals through STAT3 to promote vascular permeability. Pyrimethamine reduces VEGF-induced permeability in animal models.
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Affiliation(s)
- Li Wang
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Matteo Astone
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Sk Kayum Alam
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Zhu Zhu
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Wuhong Pei
- Translational and Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20814, USA
| | - David A Frank
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Shawn M Burgess
- Translational and Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20814, USA
| | - Luke H Hoeppner
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
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11
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Yang M, Zhang C. The role of liver sinusoidal endothelial cells in cancer liver metastasis. Am J Cancer Res 2021; 11:1845-1860. [PMID: 34094657 PMCID: PMC8167702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/03/2021] [Indexed: 06/12/2023] Open
Abstract
Liver sinusoidal endothelial cells (LSECs) are the gatekeeper cells in the liver, contributing critical roles in liver physiological and pathological changes. Factors such as dietary macronutrients, toxins, and aging impact LSEC fenestration. Defenestration of LSECs changes their phenotype and function. Under liver injury, capillarized LSECs promote hepatic stellate cells (HSCs) activation and fibrogenesis, while decapillarized LSECs protect the activation of HSCs and liver injury. The expression of chemokines, such as CXCL9 and CXCL16, changes and impacts the infiltration of immune cells in the liver during disease progression, including hepatocellular carcinoma (HCC). As the largest solid organ, liver is one of the most favorable organs into where tumor cells metastasize. The increased interaction and adhesion of circulating tumor cells (CTCs) with LSECs in the local microenvironment and LSEC-induced tolerance of immunity promote cancer liver metastasis. Several strategies can be applied to target LSEC to modulate their function to prevent cancer liver metastasis, including gut microbiota modulation, microRNA therapy, and medical treatment. Delivery of different treatment agents with nanoparticles may promote precise target treatment. Overall, targeting LSECs is a potential strategy for treatment of early liver diseases and prevention of cancer liver metastasis.
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Affiliation(s)
- Ming Yang
- Department of Surgery, University of MissouriColumbia, Missouri, USA
| | - Chunye Zhang
- Department of Veterinary Pathobiology, University of MissouriColumbia, Missouri, USA
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12
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Wang XK, Peng ZG. Targeting Liver Sinusoidal Endothelial Cells: An Attractive Therapeutic Strategy to Control Inflammation in Nonalcoholic Fatty Liver Disease. Front Pharmacol 2021; 12:655557. [PMID: 33935770 PMCID: PMC8082362 DOI: 10.3389/fphar.2021.655557] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/10/2021] [Indexed: 12/12/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD), especially its advanced stage nonalcoholic steatohepatitis (NASH), has become a threatened public health problem worldwide. However, no specific drug has been approved for clinical use to treat patients with NASH, though there are many promising candidates against NAFLD in the drug development pipeline. Recently, accumulated evidence showed that liver sinusoidal endothelial cells (LSECs) play an essential role in the occurrence and development of liver inflammation in patients with NAFLD. LSECs, as highly specialized endothelial cells with unique structure and anatomical location, contribute to the maintenance of liver homeostasis and could be a promising therapeutic target to control liver inflammation of NAFLD. In this review, we outline the pathophysiological roles of LSECs related to inflammation of NAFLD, highlight the pro-inflammatory and anti-inflammatory effects of LSECs, and discuss the potential drug development strategies against NAFLD based on targeting to LSECs.
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Affiliation(s)
- Xue-Kai Wang
- CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zong-Gen Peng
- CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of Biotechnology of Antibiotics, National Health and Family Planning Commission, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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13
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Ma H, Liu X, Zhang M, Niu J. Liver sinusoidal endothelial cells are implicated in multiple fibrotic mechanisms. Mol Biol Rep 2021; 48:2803-2815. [PMID: 33730288 DOI: 10.1007/s11033-021-06269-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 03/05/2021] [Indexed: 02/07/2023]
Abstract
Chronic liver diseases are attributed to liver injury. Development of fibrosis from chronic liver diseases is a dynamic process that involves multiple molecular and cellular processes. As the first to be impacted by injury, liver sinusoidal endothelial cells (LSECs) are involved in the pathogenesis of liver diseases caused by a variety of etiologies. Moreover, capillarization of LSECs has been recognized as an important event in the development of chronic liver diseases and fibrosis. Studies have reported that various cytokines (such as vascular endothelial growth factor, transforming growth factor-β), and pathways (such as hedgehog, and Notch), as well as epigenetic and metabolic factors are involved in the development of LSEC-mediated liver fibrosis. This review describes the complexity and plasticity of LSECs in fibrotic liver diseases from several perspectives, including the cross-talk between LSECs and other intra-hepatic cells. Moreover, it summarizes the mechanisms of several kinds of LSECs-targeting anti-fibrosis chemicals, and provides a theoretical basis for future studies.
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Affiliation(s)
- Heming Ma
- Department of Hepatology, The First Hospital of Jilin University, NO. 71, Xinmin Street, Changchun, 130021, Jilin, China
| | - Xu Liu
- Department of Hepatology, The First Hospital of Jilin University, NO. 71, Xinmin Street, Changchun, 130021, Jilin, China
| | - Mingyuan Zhang
- Department of Hepatology, The First Hospital of Jilin University, NO. 71, Xinmin Street, Changchun, 130021, Jilin, China
| | - Junqi Niu
- Department of Hepatology, The First Hospital of Jilin University, NO. 71, Xinmin Street, Changchun, 130021, Jilin, China.
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14
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Bae CR, Zhang H, Kwon YG. The endothelial dysfunction blocker CU06-1004 ameliorates choline-deficient L-amino acid diet-induced non-alcoholic steatohepatitis in mice. PLoS One 2020; 15:e0243497. [PMID: 33275637 PMCID: PMC7717513 DOI: 10.1371/journal.pone.0243497] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 11/20/2020] [Indexed: 02/07/2023] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is a severe, advanced form of non-alcoholic fatty liver disease (NAFLD) that is associated with features of metabolic syndrome and characterized by hepatic steatosis, inflammation, and fibrosis. In addition, NASH is associated with endothelial dysfunction within the hepatic vasculature. Treatment with CU06-1004 (previously called Sac-1004) ameliorates endothelial dysfunction by inhibiting hyperpermeability and inflammation. In this study, we investigated the protective effects of CU06-1004 in a choline-deficient L-amino acid (CDAA)-induced mouse model of NASH for 3 or 6 weeks. Specifically, we evaluated the effects of CU06-1004 on lipid accumulation, inflammation, hepatic fibrosis, and liver sinusoidal endothelial cell (LSEC) capillarization through biochemical analysis, immunohistochemistry, and real-time PCR. We found that the administration of CU06-1004 to mice improved liver triglyceride (TG) and serum alanine aminotransferase (ALT) in this CDAA-induced model of NASH for 6 weeks. In groups of NASH induced mice for both 3 and 6 weeks, CU06-1004 significantly reduced the hepatic expression of genes related to lipogenesis, inflammation, and cell adhesion. However, expression of genes related to hepatic fibrosis and vascular endothelial changes were only decreased in animals with mild NASH. These results suggest that the administration of CU06-1004 suppresses hepatic steatosis, inflammation, fibrosis, and LSEC capillarization in a CDAA-induced mouse model of NASH. This suggests that CU06-1004 has therapeutic potential for the treatment of mild NASH.
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Affiliation(s)
- Cho-Rong Bae
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Haiying Zhang
- CURACLE Co., Ltd., Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Young-Guen Kwon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
- * E-mail:
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15
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Wen B, Zhang C, Zhou J, Zhang Z, Che Q, Cao H, Bai Y, Guo J, Su Z. Targeted treatment of alcoholic liver disease based on inflammatory signalling pathways. Pharmacol Ther 2020; 222:107752. [PMID: 33253739 DOI: 10.1016/j.pharmthera.2020.107752] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/15/2020] [Accepted: 11/20/2020] [Indexed: 02/06/2023]
Abstract
Targeted therapy is an emerging treatment strategy for alcoholic liver disease (ALD). Inflammation plays an important role in the occurrence and development of ALD, and is a key choice for its targeted treatment, and anti-inflammatory treatment has been considered beneficial for liver disease. Surprisingly, immune checkpoint inhibitors have become important therapeutic agents for hepatocellular carcinoma (HCC). Moreover, studies have shown that the combination of inflammatory molecule inhibitors and immune checkpoint inhibitors can exert better effects than either alone in mouse models of HCC. This review discusses the mechanism of hepatic ethanol metabolism and the conditions under which inflammation occurs. In addition, we focus on the potential molecular targets in inflammatory signalling pathways and summarize the potential targeted inhibitors and immune checkpoint inhibitors, providing a theoretical basis for the targeted treatment of ALD and the development of new combination therapy strategies for HCC.
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Affiliation(s)
- Bingjian Wen
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Chengcheng Zhang
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jingwen Zhou
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zhengyan Zhang
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Qishi Che
- Guangzhou Rainhome Pharm & Tech Co., Ltd., Guangzhou 510663, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Yan Bai
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - Jiao Guo
- Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Zhengquan Su
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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16
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Understanding lipotoxicity in NAFLD pathogenesis: is CD36 a key driver? Cell Death Dis 2020; 11:802. [PMID: 32978374 PMCID: PMC7519685 DOI: 10.1038/s41419-020-03003-w] [Citation(s) in RCA: 241] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 02/06/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease worldwide. NAFLD stages range from simple steatosis (NAFL) to non-alcoholic steatohepatitis (NASH) which can progress to cirrhosis and hepatocellular carcinoma. One of the crucial events clearly involved in NAFLD progression is the lipotoxicity resulting from an excessive fatty acid (FFA) influx to hepatocytes. Hepatic lipotoxicity occurs when the capacity of the hepatocyte to manage and export FFAs as triglycerides (TGs) is overwhelmed. This review provides succinct insights into the molecular mechanisms responsible for lipotoxicity in NAFLD, including ER and oxidative stress, autophagy, lipoapotosis and inflammation. In addition, we highlight the role of CD36/FAT fatty acid translocase in NAFLD pathogenesis. Up-to-date, it is well known that CD36 increases FFA uptake and, in the liver, it drives hepatosteatosis onset and might contribute to its progression to NASH. Clinical studies have reinforced the significance of CD36 by showing increased content in the liver of NAFLD patients. Interestingly, circulating levels of a soluble form of CD36 (sCD36) are abnormally elevated in NAFLD patients and positively correlate with the histological grade of hepatic steatosis. In fact, the induction of CD36 translocation to the plasma membrane of the hepatocytes may be a determining factor in the physiopathology of hepatic steatosis in NAFLD patients. Given all these data, targeting the fatty acid translocase CD36 or some of its functional regulators may be a promising therapeutic approach for the prevention and treatment of NAFLD.
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17
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Lee C, Cheung ST. STAT3: An Emerging Therapeutic Target for Hepatocellular Carcinoma. Cancers (Basel) 2019; 11:cancers11111646. [PMID: 31731457 PMCID: PMC6895841 DOI: 10.3390/cancers11111646] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/21/2019] [Accepted: 10/22/2019] [Indexed: 12/16/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a major global health problem and its treatment options have been limited. Signal transducer and activator of transcription 3 (STAT3) is a transcription factor important for various cellular processes. Overexpression and constitutive activation of STAT3 have been frequently found in HCC and associated with poor prognosis. Ample evidence has shown that STAT3 plays pivotal roles in the initiation, progression, metastasis and immune suppression of HCC. Thus, STAT3 has attracted attention as a novel therapeutic target in HCC. Clinical trials have investigated STAT3-targeted therapeutics either as monotherapy or in combination with chemotherapeutic agents, immune checkpoint inhibitors and alternative targeted drugs. Some of these studies have yielded encouraging results. Particularly, napabucasin—a cancer stemness inhibitor targeting STAT3-driven gene transcription—has stood out with its promising clinical efficacy and safety profile. Nonetheless, clinical investigations of STAT3-targeted therapies in HCC are limited and more efforts are strongly urged to evaluate their clinical performance in HCC. Here, we provide a comprehensive review of the roles of STAT3 in HCC and follow by comprehensive analysis of STAT3 targeted strategies.
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Affiliation(s)
- Carol Lee
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China;
| | - Siu Tim Cheung
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China;
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Correspondence: ; Tel.: +852-3505-1121
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18
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Thorenoor N, Kawasawa YI, Gandhi CK, Zhang X, Floros J. Differential Impact of Co-expressed SP-A1/SP-A2 Protein on AM miRNome; Sex Differences. Front Immunol 2019; 10:1960. [PMID: 31475015 PMCID: PMC6707024 DOI: 10.3389/fimmu.2019.01960] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 08/02/2019] [Indexed: 12/04/2022] Open
Abstract
In humans there are two surfactant protein A (SP-A) functional genes SFTPA1 and SFTPA2 encoding innate immune molecules, SP-A1 and SP-A2, respectively, with numerous genetic variants each. SP-A interacts and regulates many of the functions of alveolar macrophages (AM). It is shown that SP-A variants differ in their ability to regulate the AM miRNome in response to oxidative stress (OxS). Because humans have both SP-A gene products, we were interested to determine the combined effect of co-expressed SP-A1/SP-A2 (co-ex) in response to ozone (O3) induced OxS on AM miRNome. Human transgenic (hTG) mice, carrying both SP-A1/SP-A2 (6A2/1A0, co-ex) and SP-A- KO were utilized. The hTG and KO mice were exposed to filtered air (FA) or O3 and miRNA levels were measured after AM isolation with or without normalization to KO. We found: (i) The AM miRNome of co-ex males and females in response to OxS to be largely downregulated after normalization to KO, but after Bonferroni multiple comparison analysis only in females the AM miRNome remained significantly different compared to control (FA); (ii) The targets of the significantly changed miRNAs were downregulated in females and upregulated in males; (iii) Several of the validated mRNA targets were involved in pro-inflammatory response, anti-apoptosis, cell cycle, cellular growth and proliferation; (iv) The AM of SP-A2 male, shown, previously to have major effect on the male AM miRNome in response to OxS, shared similarities with the co-ex, namely in pathways involved in the pro-inflammatory response and anti-apoptosis but also exhibited differences with the cell-cycle, growth, and proliferation pathway being involved in co-ex and ROS homeostasis in SP-A2 male. We speculate that the presence of both gene products vs. single gene products differentially impact the AM responses in males and females in response to OxS.
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Affiliation(s)
- Nithyananda Thorenoor
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease Research, The Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Yuka Imamura Kawasawa
- Departments of Pharmacology and Biochemistry and Molecular Biology, Institute for Personalized Medicine, The Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Chintan K Gandhi
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease Research, The Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Xuesheng Zhang
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease Research, The Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Joanna Floros
- Department of Pediatrics, Center for Host Defense, Inflammation, and Lung Disease Research, The Pennsylvania State University College of Medicine, Hershey, PA, United States.,Department of Obstetrics and Gynecology, The Pennsylvania State University College of Medicine, Hershey, PA, United States
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19
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Yuan Q, Hou S, Zhai J, Tian T, Wu Y, Wu Z, He J, Chen Z, Zhang J. S100A4 promotes inflammation but suppresses lipid accumulation via the STAT3 pathway in chronic ethanol-induced fatty liver. J Mol Med (Berl) 2019; 97:1399-1412. [PMID: 31321478 DOI: 10.1007/s00109-019-01808-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 05/24/2019] [Accepted: 05/31/2019] [Indexed: 02/07/2023]
Abstract
S100A4, a member of the S100 calcium-binding protein family, has been identified in a subpopulation of liver macrophages and promotes liver fibrosis via hepatic stellate cell activation. However, the specific role of S100A4 in alcoholic liver disease (ALD) has not been well investigated. Here, S100A4 knockout (S100A4-/-) mice were used in a chronic-binge ethanol model for studying the role of S100A4 and its related molecular mechanism in ALD. S100A4 expression was increased in ethanol-induced liver tissues of wild-type (WT) mice. Macrophage-derived S100A4 promoted liver inflammation but suppressed lipid accumulation under the ethanol feeding condition. S100A4 deficiency promoted ethanol-induced liver injury and hepatic fat accumulation. Further mechanistic studies found that S100A4 inhibited liver fat accumulation mainly by activating the STAT3 pathway and downregulating lipogenic gene expression, especially that of SREBP-1c. In AML-12 cells, a STAT3 inhibitor abolished STAT3 levels and decreased the expression of SREBP1c. Furthermore, the administration of a neutralizing S100A4 antibody to WT mice significantly promoted ethanol-induced liver injury and fatty accumulation. Thus, S100A4 may represent a potential candidate target for the prevention and treatment of ethanol-induced fatty liver. In this study, we discovered the special role of S100A4 in alcoholic liver disease. S100A4 deficiency attenuated ethanol-induced hepatitis and promoted hepatic fat accumulation in ethanol-induced liver tissues. Further mechanistic studies have found that S100A4 promotes early alcoholic hepatitis mainly by activating the STAT3 pathway and its downstream proinflammatory gene expression. Interestingly, activation of the STAT3 pathway downregulates lipogenic gene expression, especially SREBP-1c. KEY MESSAGES: In this study, we discovered the special role of S100A4 in alcoholic liver disease. S100A4 deficiency attenuated ethanol-induced hepatitis and promoted hepatic fat accumulation in ethanol-induced liver tissues. Further mechanistic studies have found that S100A4 promotes early alcoholic hepatitis mainly by activating the STAT3 pathway and its downstream proinflammatory gene expression. Interestingly, activation of the STAT3 pathway downregulates lipogenic gene expression, especially SREBP-1c.
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Affiliation(s)
- Qi Yuan
- The College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, People's Republic of China
| | - Shasha Hou
- The College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, People's Republic of China
| | - Junfeng Zhai
- The Chinese Academy of Inspection and Quarantine, Beijing, People's Republic of China
| | - Tian Tian
- The College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, People's Republic of China
| | - Yingjie Wu
- The State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - Zhenlong Wu
- The State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - Jinsheng He
- The College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, People's Republic of China
| | - Zhinan Chen
- The College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, People's Republic of China.,The Cell Engineering Research Center and Department of Cell Biology, State Key Laboratory of Cancer, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Jinhua Zhang
- The College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, People's Republic of China.
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20
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Kong LZ, Chandimali N, Han YH, Lee DH, Kim JS, Kim SU, Kim TD, Jeong DK, Sun HN, Lee DS, Kwon T. Pathogenesis, Early Diagnosis, and Therapeutic Management of Alcoholic Liver Disease. Int J Mol Sci 2019; 20:ijms20112712. [PMID: 31159489 PMCID: PMC6600448 DOI: 10.3390/ijms20112712] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/30/2019] [Accepted: 05/31/2019] [Indexed: 02/08/2023] Open
Abstract
Alcoholic liver disease (ALD) refers to the damages to the liver and its functions due to alcohol overconsumption. It consists of fatty liver/steatosis, alcoholic hepatitis, steatohepatitis, chronic hepatitis with liver fibrosis or cirrhosis, and hepatocellular carcinoma. However, the mechanisms behind the pathogenesis of alcoholic liver disease are extremely complicated due to the involvement of immune cells, adipose tissues, and genetic diversity. Clinically, the diagnosis of ALD is not yet well developed. Therefore, the number of patients in advanced stages has increased due to the failure of proper early detection and treatment. At present, abstinence and nutritional therapy remain the conventional therapeutic interventions for ALD. Moreover, the therapies which target the TNF receptor superfamily, hormones, antioxidant signals, and MicroRNAs are used as treatments for ALD. In particular, mesenchymal stem cells (MSCs) are gaining attention as a potential therapeutic target of ALD. Therefore, in this review, we have summarized the current understandings of the pathogenesis and diagnosis of ALD. Moreover, we also discuss the various existing treatment strategies while focusing on promising therapeutic approaches for ALD.
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Affiliation(s)
- Ling-Zu Kong
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Korea.
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
| | - Nisansala Chandimali
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Korea.
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
| | - Ying-Hao Han
- Department of Disease Model Animal Research Center, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
| | - Dong-Ho Lee
- Primate Resources Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup-si, Jeonbuk 56216, Korea.
| | - Ji-Su Kim
- Primate Resources Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup-si, Jeonbuk 56216, Korea.
| | - Sun-Uk Kim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju-si, Chungcheongbuk-do 28116, Korea.
| | - Tae-Don Kim
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
| | - Dong Kee Jeong
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Korea.
- Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju 63243, Korea.
| | - Hu-Nan Sun
- Department of Disease Model Animal Research Center, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
- Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju 63243, Korea.
| | - Dong Sun Lee
- Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju 63243, Korea.
- Department of Biotechnology, College of Applied Life Science, Jeju National University, Jeju 63243, Korea.
| | - Taeho Kwon
- Primate Resources Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup-si, Jeonbuk 56216, Korea.
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21
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Stärkel P, Schnabl B, Leclercq S, Komuta M, Bataller R, Argemi J, Palma E, Chokshi S, Hellerbrand C, Maccioni L, Lanthier N, Leclercq I. Deficient IL-6/Stat3 Signaling, High TLR7, and Type I Interferons in Early Human Alcoholic Liver Disease: A Triad for Liver Damage and Fibrosis. Hepatol Commun 2019; 3:867-882. [PMID: 31334440 PMCID: PMC6601428 DOI: 10.1002/hep4.1364] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 04/15/2019] [Indexed: 12/15/2022] Open
Abstract
Mechanisms underlying alcohol-induced liver injury and its progression still remain incompletely understood. Animal models can only address some aspects of the pathophysiology that requires studies directly in humans, which are scarce. We assessed liver inflammatory and immune responses at early stages of alcoholic liver disease in a unique cohort of alcohol-dependent patients undergoing a highly standardized alcohol withdrawal program. In active drinkers, quantitative real-time polymerase chain reaction revealed alcohol-induced activation of tumor necrosis factor alpha, interleukin (IL)-1β, and nuclear factor kappa B in liver tissue already at early disease stages. Double immunofluorescence staining indicated that this proinflammatory response was restricted to activated, CD68-positive macrophages. In parallel, down-regulation of IL-6, inhibition of the signal transducer and activator of transcription 3 (Stat3) pathway, as well as blunted cyclin D expression in hepatocytes, reduced proliferation and favored hepatocyte apoptosis. In addition, immunofluorescence and quantitative real-time polymerase chain reaction of liver tissue showed that alcohol also activated the toll-like receptor (TLR) 7-interferon (IFN) axis in hepatocytes, which was confirmed in alcohol-stimulated primary human hepatocytes and precision-cut liver slices in vitro. Activation of the TLR7-IFN axis strongly correlated with liver fibrosis markers and disease progression. Two weeks of abstinence attenuated the inflammatory response but did not allow recovery of the defective Stat3 pathway or effect on fibrosis-associated factors. Conclusion: In humans, inflammation, activation of the TLR7-IFN axis, and inhibition of Stat3-dependent repair mechanisms in early alcoholic liver disease pave the way for fibrosis development and ultimately disease progression.
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Affiliation(s)
- Peter Stärkel
- Department of Hepato-gastroenterology Cliniques Universitaires Saint-Luc Brussels Belgium.,Institute of Experimental and Clinical Research, Laboratory of Hepato-gastroenterology Université Catholique de Louvain Brussels Belgium
| | - Bernd Schnabl
- Department of Medicine University of California San Diego La Jolla CA
| | - Sophie Leclercq
- Institute of Neuroscience Université Catholique de Louvain Brussels Belgium
| | - Mina Komuta
- Department of Pathology Cliniques Universitaires Saint-Luc Brussels Belgium
| | - Ramon Bataller
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine University of Pittsburgh Medical Center, Pittsburgh Liver Research Center Pittsburgh PA
| | - Josepmaria Argemi
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine University of Pittsburgh Medical Center, Pittsburgh Liver Research Center Pittsburgh PA
| | - Elena Palma
- Institute of Hepatology Foundation for Liver Research London United Kingdom.,Faculty of Life Sciences & Medicine King's College London London United Kingdom
| | - Shilpa Chokshi
- Institute of Hepatology Foundation for Liver Research London United Kingdom.,Faculty of Life Sciences & Medicine King's College London London United Kingdom
| | - Claus Hellerbrand
- Institute of Biochemistry Friedrich-Alexander University Erlangen-Nürnberg Erlangen Germany
| | - Luca Maccioni
- Institute of Experimental and Clinical Research, Laboratory of Hepato-gastroenterology Université Catholique de Louvain Brussels Belgium
| | - Nicolas Lanthier
- Department of Hepato-gastroenterology Cliniques Universitaires Saint-Luc Brussels Belgium.,Institute of Experimental and Clinical Research, Laboratory of Hepato-gastroenterology Université Catholique de Louvain Brussels Belgium
| | - Isabelle Leclercq
- Institute of Experimental and Clinical Research, Laboratory of Hepato-gastroenterology Université Catholique de Louvain Brussels Belgium
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22
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Gao Y, Zhao H, Wang P, Wang J, Zou L. The roles of SOCS3 and STAT3 in bacterial infection and inflammatory diseases. Scand J Immunol 2018; 88:e12727. [PMID: 30341772 DOI: 10.1111/sji.12727] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 10/11/2018] [Accepted: 10/13/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Yu Gao
- Translational Neuroscience & Neural Regeneration and Repair Institute/Institute of Cell Therapy; The People's Hospital of China Three Gorges University; Yichang China
- Department of Microbiology, Tumor and Cell Biology; Karolinska Institutet; Stockholm Sweden
| | - Honglei Zhao
- Translational Neuroscience & Neural Regeneration and Repair Institute/Institute of Cell Therapy; The People's Hospital of China Three Gorges University; Yichang China
- Department of Oncology-Pathology; Karolinska Institutet; Stockholm Sweden
| | - Peng Wang
- Translational Neuroscience & Neural Regeneration and Repair Institute/Institute of Cell Therapy; The People's Hospital of China Three Gorges University; Yichang China
| | - Jun Wang
- Translational Neuroscience & Neural Regeneration and Repair Institute/Institute of Cell Therapy; The People's Hospital of China Three Gorges University; Yichang China
| | - Lili Zou
- Translational Neuroscience & Neural Regeneration and Repair Institute/Institute of Cell Therapy; The People's Hospital of China Three Gorges University; Yichang China
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23
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Lin CJ, Hu ZG, Yuan GD, Lei B, He SQ. Complements are involved in alcoholic fatty liver disease, hepatitis and fibrosis. World J Hepatol 2018; 10:662-669. [PMID: 30386459 PMCID: PMC6206158 DOI: 10.4254/wjh.v10.i10.662] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/26/2018] [Accepted: 08/01/2018] [Indexed: 02/06/2023] Open
Abstract
The complement system is a key component of the body’s immune system. When abnormally activated, this system can induce inflammation and damage to normal tissues and participate in the development and progression of a variety of diseases. In the past, many scholars believed that alcoholic liver disease (ALD) is induced by the stress of ethanol on liver cells, including oxidative stress and dysfunction of mitochondria and protease bodies, causing hepatocyte injury and apoptosis. Recent studies have shown that complement activation is also involved in the genesis and development of ALD. This review focuses on the roles of complement activation in ALD and of therapeutic intervention in complement-activation pathways. We intend to provide new ideas on the diagnosis and treatment of ALD.
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Affiliation(s)
- Cheng-Jie Lin
- Department of Hepatopancreatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Zhi-Gao Hu
- Department of Hepatopancreatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Guan-Dou Yuan
- Department of Hepatopancreatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Biao Lei
- Department of Hepatopancreatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Song-Qing He
- Department of Hepatopancreatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
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24
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Wu Z, Wang Y, Meng X, Wang X, Li Z, Qian S, Wei Y, Shu L, Ding Y, Wang P, Peng Y. Total C-21 steroidal glycosides, isolated from the root tuber of Cynanchum auriculatum Royle ex Wight, attenuate hydrogen peroxide-induced oxidative injury and inflammation in L02 cells. Int J Mol Med 2018; 42:3157-3170. [PMID: 30272289 PMCID: PMC6202073 DOI: 10.3892/ijmm.2018.3896] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 09/20/2018] [Indexed: 12/22/2022] Open
Abstract
Oxidative stress plays an important role in the pathology of liver disorders. Total C-21 steroidal glycosides (TCSGs), isolated from the root tuber of Cynanchum auriculatum Royle ex Wight, have been reported to exert numerous effects, including liver protective and antioxidant effects. In order to investigate the potential mechanisms underlying the protective effects of TCSGs on liver function, the present study used the human normal liver cell line, L02, to evaluate the effects of TCSGs on hydrogen peroxide (H2O2)-induced oxidative injury and inflammatory responses. The L02 cells were pretreated with various concentrations of TCSGs, followed by exposure to 1.5 mM H2O2. Cell viability was determined by a 3-(4,5-dimethylthiazol-2-yl)-2,5-di-phenyltetrazolium bromide (MTT) assay. The levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH) and nitric oxide (NO) were measured using colorimetric assays. The activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px) and the production of malondialdehyde (MDA) were also determined. Intracellular reactive oxygen species (ROS) levels were detected using a fluorescent probe. H2O2-induced oxidative toxicity was attenuated following treatment with TCSGs, as indicated by the increase in cell viability, the decreased levels of ALT, AST, LDH, NO, MDA and ROS, and the increased activities of SOD, CAT and GSH-Px. To further explore the possible mechanisms of action of TCSGs, the nuclear factor erythroid 2-related factor 2 (Nrf2) and nuclear factor-κB (NF)-κB pathways were examined. The results revealed that treatment with TCSGs markedly induced Nrf2 nuclear translocation and upregulated the expression of heme oxygenase-1 (HO-1) in the L02 cells damaged by H2O2. In addition, pretreatment with TCSGs inhibited the NF-κB signaling pathway by blocking the degradation of the inhibitor of nuclear factor κBα (IκBα), thereby reducing the expression and nuclear translocation of NF-κB, as well as reducing the expression of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), inducible nitric oxide synthase (iNOS) and cyclooxygenase 2 (COX-2). On the whole, the findings of this study demonstrate that TCSGs can protect L02 cells against H2O2-induced oxidative toxicity and inflammatory injury by increasing the expression of Nrf2 and HO-1, mediated by the NF-κB signaling pathway.
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Affiliation(s)
- Zhenhui Wu
- Department of Pharmacology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Yingyu Wang
- Department of Pharmacology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Xian Meng
- Department of Pharmacology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Xinjie Wang
- State Key Laboratory of Natural Medicines, Research Department of Pharmacognosy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P.R. China
| | - Zhenlin Li
- Department of Pharmacology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Shihui Qian
- Department of Pharmacology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Yingjie Wei
- Department of Pharmacology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Luan Shu
- Department of Pharmacology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Yongfang Ding
- Department of Pharmacology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Peijuan Wang
- Department of Pharmacology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Yunru Peng
- Department of Pharmacology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
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25
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Han JH, Ju JH, Lee YS, Park JH, Yeo IJ, Park MH, Roh YS, Han SB, Hong JT. Astaxanthin alleviated ethanol-induced liver injury by inhibition of oxidative stress and inflammatory responses via blocking of STAT3 activity. Sci Rep 2018; 8:14090. [PMID: 30237578 PMCID: PMC6148091 DOI: 10.1038/s41598-018-32497-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 09/03/2018] [Indexed: 12/20/2022] Open
Abstract
Astaxanthin (AXT) is classified as a xanthophyll carotenoid compound which have broader functions including potent antioxidant, anti-inflammatory and neuroprotective properties. Considerable researches have demonstrated that AXT shows preventive and therapeutic properties against for Diabetes, Osteoarthritis and Rheumatoid Arthritis. However, the protective effect of AXT on liver disease has not yet been reported. In this study, we investigated effects of AXT on ethanol-induced liver injury in chronic plus binge alcohol feeding model. The hepatic steatosis and inflammation induced by ethanol administration were alleviated by AXT. Serum levels of aspartate transaminase and alanine transaminase were decreased in the livers of AXT administrated group. The ethanol-induced expression of cytochrome P450 2E1 (CYP2E1), pro-inflammatory proteins, cytokines, chemokines and reactive oxygen species (ROS) levels were also reduced in the livers of AXT administrated group. Moreover, ethanol-induced infiltration of neutrophils was decreased in the livers of AXT administrated group. Docking model and pull-down assay showed that AXT directly binds to the DNA binding site of STAT3. Moreover, AXT decreased STAT3 phosphorylation in the liver of AXT administration group. Therefore, these results suggest that AXT could prevent ethanol-induced hepatic injury via inhibition of oxidant and inflammatory responses via blocking of STAT3 activity.
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Affiliation(s)
- Ji Hye Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Jung Heun Ju
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Yong Sun Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Ju Ho Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - In Jun Yeo
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Mi Hee Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Yoon Seok Roh
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Sang Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea.
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26
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Ma L, Huo CY, Zhang XY, Qin CQ, Ren DF, Lu J. Protective effect of Letinous edodes foot peptides against ethanol‑induced liver injury in L02 cells. Mol Med Rep 2018; 18:1858-1866. [PMID: 29845248 DOI: 10.3892/mmr.2018.9093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 05/09/2018] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to evaluate the protective effect and mechanism of Letinous edodes foot peptides on ethanol‑induced L02 cells. A cell model of ethanol‑induced damage was established in vitro to study the effects of the Letinous edodes foot peptides on human L02 hepatocytes. The expression and activity of superoxide dismutase (SOD), malondialdehyde (MDA), aspartate aminotransferase (AST), alanine aminotransferase (ALT), alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH), following treatment were examined to determine the anti‑alcoholism and hepatoprotective functions of Letinous edodes foot peptides. Taking Letinous edodes foot peptides prior to ethanol exposure was more beneficial, which significantly increased SOD activity and the mRNA expression of ADH and ALDH suppressed by ethanol. In addition, the intracellular MDA content, and AST and ALT activity decreased in ethanol‑induced L02 cells pretreated with the peptides, when compared with the control. Furthermore, Letinous edodes foot peptides inhibited the ethanol‑induced activation of the proinflammatory cytokines, interleukin‑6 and tumor necrosis factor‑α, and promoted the metabolic regulation factors, AMP‑activated protein kinase‑α2 and peroxisome proliferator‑activated receptor‑α.
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Affiliation(s)
- Lin Ma
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, P.R. China
| | - Chun-Yan Huo
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, P.R. China
| | - Xiao-Yu Zhang
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, P.R. China
| | - Chen-Qiang Qin
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, P.R. China
| | - Di-Feng Ren
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, P.R. China
| | - Jun Lu
- Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries, Beijing 100015, P.R. China
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27
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Walline CC, Blum JS, Linton T, Mangiacarne D, Liangpunsakul S. Early activation of peripheral monocytes with hallmarks of M1 and M2 monocytic cells in excessive alcohol drinkers: a pilot study. J Investig Med 2018. [PMID: 29519798 DOI: 10.1136/jim-2017-000706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Excessive drinking can lead to the development of immune dysfunction. Our aim is to investigate the effect of alcohol on immune activation from circulating peripheral blood monocytes in excessive drinkers (EDs). Twenty-two EDs and healthy controls were enrolled. Time line follow-back was used to quantify the amount of alcohol consumed in the past 30 days before enrollment. Peripheral blood-derived CD14+ monocytes were isolated for gene expression analyses. Serum interleukin (IL)-6, IL-10 and lipopolysaccharides (LPS) were also measured. We found that serum LPS concentrations were significantly higher in EDs compared with controls (P<0.05). While no differences in the levels of circulating IL-6 and IL-10 were observed, the relative levels of gene transcripts (RQ) for Il6 (an M1-polarizing cytokine) and Il10 (an M2-polarizing cytokine) were significantly higher in peripheral blood-derived monocytes from EDs compared with controls (Il6: P<0.01. Il10: P<0.05). EDs exhibit early immune activation of peripheral blood monocyte mRNA transcripts, notably Il6 and Il10 Future studies are needed to explore the clinical implications of our findings and determine whether the levels of Il6 and Il10 mRNA expression can be used to identify those with excessive drinking and to monitor for alcohol abstinence.
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Affiliation(s)
- Crystal C Walline
- Department of Biology, University of North Carolina, Pembroke, North Carolina, USA
| | - Janice S Blum
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Tobyn Linton
- Fairbanks Drug and Alcohol Rehabilitation, Indianapolis, Indiana, USA
| | | | - Suthat Liangpunsakul
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA.,Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, USA.,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
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28
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Noutsios GT, Thorenoor N, Zhang X, Phelps DS, Umstead TM, Durrani F, Floros J. SP-A2 contributes to miRNA-mediated sex differences in response to oxidative stress: pro-inflammatory, anti-apoptotic, and anti-oxidant pathways are involved. Biol Sex Differ 2017; 8:37. [PMID: 29202868 PMCID: PMC5716385 DOI: 10.1186/s13293-017-0158-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 11/01/2017] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Human innate host defense molecules, surfactant protein A1 (SP-A1), and SP-A2 differentially affect the function and proteome of the alveolar macrophage (AM). We hypothesized that SP-A genes differentially regulate the AM miRNome. METHODS Humanized transgenic mice expressing SP-A1 and SP-A2 were subjected to O3-induced oxidative stress (OxS) or filtered air (FA), AMs were isolated, and miRNA levels were measured. RESULTS In SP-A2 males, we found significant changes in miRNome in terms of sex and sex-OxS effects, with 11 miRNAs differentially expressed under OxS. Their mRNA targets included BCL2, CAT, FOXO1, IL6, NF-kB, SOD2, and STAT3. We followed the expression of these transcripts as well as key cytokines, and we found that (a) the STAT3 mRNA significantly increased at 4 h post OxS and returned to baseline at 18 h post OxS. (b) The anti-oxidant protein SOD2 level significantly increased, but the CAT level did not change after 4 h post OxS compared to control. (c) The anti-apoptotic BCL2 mRNA increased significantly (18 h post OxS), but the levels of the other transcripts were decreased. The presence of the SP-A2 gene had a protective role in apoptosis of AMs under OxS compared to mice lacking SP-A (knockout, KO). (d) Pro-inflammatory cytokine IL-6 protein levels were significantly increased in SP-A2 mice compared to KO (4 and 18 h post OxS), which signifies the role of SP-A2 in pro-inflammatory protein expression. (e) SOD2 and CAT mRNAs changed significantly in OxS indicating a plausible role of SP-A2 in the homeostasis of reactive oxygen species. (f) Gonadectomy of transgenic mice showed that sex hormones contribute to significant changes of the miRNome expression. CONCLUSIONS We conclude that SP-A2 influences the miRNA-mediated sex-specific differences in response to OxS. In males, these differences pertain to inflammatory, anti-apoptotic, and anti-oxidant pathways.
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Affiliation(s)
- George T Noutsios
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State University College of Medicine, Hershey, PA, 17033-0850, USA
| | - Nithyananda Thorenoor
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State University College of Medicine, Hershey, PA, 17033-0850, USA
| | - Xuesheng Zhang
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State University College of Medicine, Hershey, PA, 17033-0850, USA
| | - David S Phelps
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State University College of Medicine, Hershey, PA, 17033-0850, USA
| | - Todd M Umstead
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State University College of Medicine, Hershey, PA, 17033-0850, USA
| | - Faryal Durrani
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State University College of Medicine, Hershey, PA, 17033-0850, USA
| | - Joanna Floros
- Center for Host Defense, Inflammation, and Lung Disease (CHILD) Research, Department of Pediatrics, The Pennsylvania State University College of Medicine, Hershey, PA, 17033-0850, USA.
- Department of Obstetrics and Gynecology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033-0850, USA.
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29
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Dube S, Matam T, Yen J, Mang HE, Dagher PC, Hato T, Sutton TA. Endothelial STAT3 Modulates Protective Mechanisms in a Mouse Ischemia-Reperfusion Model of Acute Kidney Injury. J Immunol Res 2017; 2017:4609502. [PMID: 29181415 PMCID: PMC5664346 DOI: 10.1155/2017/4609502] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 08/29/2017] [Indexed: 01/24/2023] Open
Abstract
STAT3 is a transcriptional regulator that plays an important role in coordinating inflammation and immunity. In addition, there is a growing appreciation of the role STAT3 signaling plays in response to organ injury following diverse insults. Acute kidney injury (AKI) from ischemia-reperfusion injury is a common clinical entity with devastating consequences, and the recognition that endothelial alterations contribute to kidney dysfunction in this setting is of growing interest. Consequently, we used a mouse with a genetic deletion of Stat3 restricted to the endothelium to examine the role of STAT3 signaling in the pathophysiology of ischemic AKI. In a mouse model of ischemic AKI, the loss of endothelial STAT3 signaling significantly exacerbated kidney dysfunction, morphologic injury, and proximal tubular oxidative stress. The increased severity of ischemic AKI was associated with more robust endothelial-leukocyte adhesion and increased tissue accumulation of F4/80+ macrophages. Moreover, important proximal tubular adaptive mechanisms to injury were diminished in association with decreased tissue mRNA levels of the epithelial cell survival cytokine IL-22. In aggregate, these findings suggest that the endothelial STAT3 signaling plays an important role in limiting kidney dysfunction in ischemic AKI and that selective pharmacologic activation of endothelial STAT3 signaling could serve as a potential therapeutic target.
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Affiliation(s)
- Shataakshi Dube
- Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tejasvi Matam
- Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jessica Yen
- Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Henry E. Mang
- Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Pierre C. Dagher
- Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Takashi Hato
- Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Timothy A. Sutton
- Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
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30
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Hepatoprotective Effect of Aqueous Extract from the Seeds of Orychophragmus violaceus against Liver Injury in Mice and HepG2 Cells. Int J Mol Sci 2017; 18:ijms18061197. [PMID: 28617329 PMCID: PMC5486020 DOI: 10.3390/ijms18061197] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/11/2017] [Accepted: 05/24/2017] [Indexed: 12/19/2022] Open
Abstract
Orychophragmus violaceus (O. violaceus) is a kind of edible wild herb in north China and its seeds have medical potential, however, the effect of O. violaceus seeds on liver injury and the mechanism of action remains poorly understood. Thus, the purpose of the present study is to investigate the effect of O. violaceus seeds on liver injury and further explore the molecular mechanism of the beneficial effects using aqueous extract from the seeds of O. violaceus (AEOV). Mice were orally administrated with saline, AEOV, and biphenyldicarboxylate for 4 days, and were then injected subcutaneously with 0.1% carbon tetrachloride (CCl4) dissolved in corn oil. Sixteen hours later, mice were sacrificed and blood samples were collected. Then, the serum was separated and used for biochemical assay. Livers were excised and were routinely processed for histological examinations. Enzyme activities and protein levels in liver homogenates were detected using commercial kits or by western blot analysis. Additionally, the hepatoprotective effect of AEOV in vitro was evaluated using epigoitrin, the major alkaloid compound isolated from AEOV. We found that AEOV attenuated liver injury induced by CCl4 as evidenced by decreased levels of alanine aminotransferase (ALT) and aminotransferase (AST) in serum, improvement of liver histopathological changes, and substantial attenuation of oxidative stress and inflammation via regulation of nuclear factor-erythroid 2-related factor-2 (Nrf2) and nuclear factor κB (NFκB) pathways. These effects of AEOV were comparable to that of biphenyldicarboxylate which was commonly used as a hepatoprotective reference. Moreover, pretreatment of HepG2 cells with epigoitrin improved cell viability, decreased lactate dehydrogenase (LDH) and malondialdehyde (MDA) levels, increased superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activity, attenuated the NFκB pathway, and elevated the Nrf2 pathway after exposure to H2O2. These results suggest that AEOV could effectively prevent CCl4-induced liver injury in mice via regulating the Nrf2 and NFκB pathways, and reveal the cytoprotective effects of epigoitrin against H2O2-induced oxidative stress in HepG2 cells.
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31
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Starokozhko V, Groothuis GMM. Challenges on the road to a multicellular bioartificial liver. J Tissue Eng Regen Med 2017; 12:e227-e236. [PMID: 27943623 DOI: 10.1002/term.2385] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 09/28/2016] [Accepted: 12/06/2016] [Indexed: 12/25/2022]
Abstract
Over recent years, the progress in the development of a bioartificial liver (BAL) as an extracorporeal device or as a tissue engineered transplantable organ has been immense. However, many important BAL characteristics that are necessary to meet clinical demands have not been sufficiently addressed. This review describes the existing challenges in the development of a BAL for clinical applications, highlighting multicellularity and sinusoidal microarchitecture as crucial BAL characteristics to fulfil various liver functions. Currently available sources of nonparenchymal liver cells, such as endothelial cells, cholangiocytes and macrophages, used in BAL development are defined. Also, we discuss the recent studies on the reconstruction of the complex liver sinusoid microarchitecture using various liver cell types. Moreover, we highlight some other aspects of a BAL, such as liver zonation and formation of a vascular as well as biliary network for an adequate delivery, biotransformation and removal of substrates and waste products. Finally, the benefits of a multicellular BAL for the pharmaceutical industry are briefly described. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Viktoriia Starokozhko
- Division of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute for Pharmacy, University of Groningen, The Netherlands
| | - Geny M M Groothuis
- Division of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute for Pharmacy, University of Groningen, The Netherlands
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STAT3 activation in endothelial cells is important for tumor metastasis via increased cell adhesion molecule expression. Oncogene 2017; 36:5445-5459. [DOI: 10.1038/onc.2017.148] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/27/2017] [Accepted: 04/17/2017] [Indexed: 12/18/2022]
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Hepatoprotective Effect of Carboxymethyl Pachyman in Fluorouracil-Treated CT26-Bearing Mice. Molecules 2017; 22:molecules22050756. [PMID: 28481246 PMCID: PMC6153744 DOI: 10.3390/molecules22050756] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/03/2017] [Accepted: 05/03/2017] [Indexed: 12/12/2022] Open
Abstract
5-Fluorouracil (5-FU) is the chemotherapeutic agent of first choice for the treatment ofcolorectal cancer, however, treatment-related liver toxicity remains a major concern. Thereby, it is desirable to search for novel therapeutic approaches that can effectively enhance curative effects and reduce the toxic side effects of 5-FU. Carboxymethyl Pachyman (CMP) exhibits strong antitumor properties, but the antitumor and hepatoprotective effects of CMP and the molecular mechanisms behind these activities, are however poorly explored. Thereby, the purpose of the present study was to evaluate the hepatoprotective effect of CMP in 5-FU-treated CT26-bearing mice, and further explore the underlying mechanism(s) of action. Initially, a CT26 colon carcinoma xenograft mice model was established. The immune organ indexes, blood indicators, liver tissue injury, and indicators associated with inflammation, antioxidant and apoptosis were then measured. Our results showed that CMP administration increased the tumor inhibitory rates of 5-FU and, meanwhile, it reversed reduction of peripheral white blood cells (WBC) and bone marrow nucleated cells (BMNC), increase of alanine aminotransferase (ALT) and aspartate aminotransferase (AST), and decrease of superoxide dismutase (SOD), catalase (CAT), GSH-Px and glutathione(GSH) induced by 5-FU. Moreover, CMP in combination with 5-FU alleviated severe liver injury induced by 5-FU via reducing the levels of ROS, IL-1β, and IL-6, decreasing expression of p-IκB-α, NF-κB, p-NF-κB, pp38 and Bax, and elevating levels of Nrf2, GCL, HO-1 and Bcl-2. Collectively, these outcomes suggested that CMP effectively enhanced the curative effects of 5-FU and simultaneously reduced the liver injuries induced by 5-FU in CT26-bearing mice, and the mechanism may be associated with regulation of NF-κB, Nrf2-ARE and MAPK/P38/JNK pathways.
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Ma HC, Wang X, Wu MN, Zhao X, Yuan XW, Shi XL. Interleukin-10 Contributes to Therapeutic Effect of Mesenchymal Stem Cells for Acute Liver Failure via Signal Transducer and Activator of Transcription 3 Signaling Pathway. Chin Med J (Engl) 2017; 129:967-75. [PMID: 27064043 PMCID: PMC4831533 DOI: 10.4103/0366-6999.179794] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background: Mesenchymal stem cells (MSCs) transplantation has been proven to have therapeutic potential for acute liver failure (ALF). However, the mechanism remains controversial. Recently, modulation of inflammation by MSCs has been regarded as a crucial mechanism. The aim of the present study was to explore the soluble cytokines secreted by MSCs and their therapeutic effects in ALF. Methods: MSCs isolated from Sprague-Dawley rats were identified by fluorescence-activated cell sorting analysis. Conditioned medium derived from MSCs (MSCs-CM) was collected and analyzed by a cytokine microarray. MSCs and MSCs-CM were transplanted into rats with D-galactosamine-induced ALF. Liver function, survival rate, histology, and inflammatory factors were determined. Exogenous recombinant rat interleukin (IL)-10, anti-rat IL-10 antibody, and AG490 (signal transducer and activator of transcription 3 [STAT3] signaling pathway inhibitor) were administered to explore the therapeutic mechanism of MSCs-CM. Statistical analysis was performed with SPSS version 19.0, and all data were analyzed by the independent-sample t-test. Results: There are statistical differences of the survival curve between ALF+MSCs group and ALF+Dulbecco's modified Eagle's medium (DMEM) group, as well as ALF+MSCs-CM group and ALF+DMEM group (all P < 0.05). Serum alanine aminotransferase (ALT) level in the ALF+MSCs and ALF+MSCs-CM groups was lower than that in the ALF+DMEM group (865.53±52.80 vs. 1709.75±372.12 U/L and 964.72±414.59 vs. 1709.75±372.12 U/L, respectively, all P < 0.05); meanwhile, serum aspartate aminotransferase (AST) level in the ALF+MSCs and ALF+MSCs-CM groups was lower than that in the ALF+DMEM group (2440.83±511.94 vs. 4234.35±807.30 U/L and 2739.83±587.33 vs. 4234.35±807.30 U/L, respectively, all P < 0.05). Furthermore, MSCs or MSCs-CM treatment significantly reduced serum interferon-γ (IFN-γ), IL-1β, IL-6 levels and increased serum IL-10 level compared with DMEM (all P < 0.05). Proteome profile analysis of MSCs-CM indicated the presence of anti-inflammatory factors and IL-10 was the most distinct. Blocking of IL-10 confirmed the therapeutic significance of this cytokine. Phosphorylated STAT3 was upregulated after IL-10 infusion and inhibition of STAT3 by AG490 reversed the therapeutic effect of IL-10. Conclusions: The factors released by MSCs, especially IL-10, have the potential for therapeutic recovery of ALF, and the STAT3 signaling pathway may mediate the anti-inflammatory effect of IL-10.
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Affiliation(s)
| | | | | | | | | | - Xiao-Lei Shi
- Department of Hepatobiliary Surgery, Affliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, China
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Liu N, Yang M, Huang W, Wang Y, Yang M, Wang Y, Zhao Z. Composition, antioxidant activities and hepatoprotective effects of the water extract of Ziziphus jujuba cv. Jinsixiaozao. RSC Adv 2017. [DOI: 10.1039/c6ra27516h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
In this study, we aimed to evaluate the composition, antioxidant activities, and hepatoprotective effects of water extracts ofZiziphus jujubacv. Jinsixiaozao.
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Affiliation(s)
- Na Liu
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Mei Yang
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Weizhen Huang
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Yongjie Wang
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Min Yang
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Ying Wang
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Zhongxi Zhao
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
- Shandong Engineering & Technology Research Center for Jujube Food and Drug
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McMahan RH, Porsche CE, Edwards MG, Rosen HR. Free Fatty Acids Differentially Downregulate Chemokines in Liver Sinusoidal Endothelial Cells: Insights into Non-Alcoholic Fatty Liver Disease. PLoS One 2016; 11:e0159217. [PMID: 27454769 PMCID: PMC4959750 DOI: 10.1371/journal.pone.0159217] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 06/28/2016] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease is a prevalent problem throughout the western world. Liver sinusoidal endothelial cells (LSEC) have been shown to play important roles in liver injury and repair, but their role in the underlying pathogenetic mechanisms of non-alcoholic fatty liver disease remains undefined. Here, we evaluated the effects of steatosis on LSEC gene expression in a murine model of non-alcoholic fatty liver disease and an immortalized LSEC line. Using microarray we identified distinct gene expression profiles following exposure to free fatty acids. Gene pathway analysis showed a number of differentially expressed genes including those involved in lipid metabolism and signaling and inflammation. Interestingly, in contrast to hepatocytes, fatty acids led to decreased expression of pro-inflammatory chemokines including CCL2 (MCP-1), CXCL10 and CXCL16 in both primary and LSEC cell lines. Chemokine downregulation translated into a significant inhibition of monocyte migration and LSECs isolated from steatotic livers demonstrated a similar shift towards an anti-inflammatory phenotype. Overall, these pathways may represent a compensatory mechanism to reverse the liver damage associated with non-alcoholic fatty liver disease.
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Affiliation(s)
- Rachel H. McMahan
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Denver, Aurora, Colorado, United States of America
| | - Cara E. Porsche
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Denver, Aurora, Colorado, United States of America
| | - Michael G. Edwards
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Denver, Aurora, Colorado, United States of America
| | - Hugo R. Rosen
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Denver, Aurora, Colorado, United States of America
- Department of Microbiology and Immunology, University of Colorado Denver, Aurora, Colorado, United States of America
- Denver Veteran’s Affairs Medical Center, Denver, Colorado, United States of America
- * E-mail:
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Racicot K, Kwon JY, Aldo P, Abrahams V, El-Guindy A, Romero R, Mor G. Type I Interferon Regulates the Placental Inflammatory Response to Bacteria and is Targeted by Virus: Mechanism of Polymicrobial Infection-Induced Preterm Birth. Am J Reprod Immunol 2016; 75:451-60. [PMID: 26892235 PMCID: PMC5599852 DOI: 10.1111/aji.12501] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 01/18/2016] [Indexed: 12/28/2022] Open
Abstract
PROBLEM Preterm birth (PTB) affects approximately 12% of pregnancies and at least 50% of cases have no known risk factors. We hypothesize that subclinical viral infections of the placenta are a factor sensitizing women to intrauterine bacterial infection. Specifically, we propose that viral-induced placental IFN-β inhibition results in a robust inflammatory response to low concentrations of bacteria. METHODS Human trophoblast SW.71, C57BL/6, and interferon (IFN) receptor knockout animals were used to determine IFN function. Illumina and Bio-Rad microarrays identified pathways. RESULTS Inhibiting the IFN-β pathway resulted in a significant increase in inflammatory cytokines such as IL-1B in response to LPS. Twist was positively correlated with IFN-β expression and STAT3 phosphorylation and overexpressing Twist reduced IL-1B. Treating IFNAR-/- mice with low-dose LPS at E15.5 caused preterm birth. CONCLUSION IFN-β was identified as a key modulator of placental inflammation and, importantly, is commonly affected by viruses. We propose dysregulation of IFN-β is a major determinant for preterm birth associated with polymicrobial infection.
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Affiliation(s)
- Karen Racicot
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
- Department of OB/GYN, College of Human Medicine, Michigan State University, Grand Rapids, MI, USA
| | - Ja Young Kwon
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
- Department of OB/GYN, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Paulomi Aldo
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Vikki Abrahams
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Ayman El-Guindy
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
| | - Roberto Romero
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, DHHS, Detroit, MI, USA
| | - Gil Mor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
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Stankiewicz AM, Goscik J, Dyr W, Juszczak GR, Ryglewicz D, Swiergiel AH, Wieczorek M, Stefanski R. Novel candidate genes for alcoholism--transcriptomic analysis of prefrontal medial cortex, hippocampus and nucleus accumbens of Warsaw alcohol-preferring and non-preferring rats. Pharmacol Biochem Behav 2015; 139:27-38. [PMID: 26455281 DOI: 10.1016/j.pbb.2015.10.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 10/06/2015] [Accepted: 10/06/2015] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Animal models provide opportunity to study neurobiological aspects of human alcoholism. Changes in gene expression have been implicated in mediating brain functions, including reward system and addiction. The current study aimed to identify genes that may underlie differential ethanol preference in Warsaw High Preferring (WHP) and Warsaw Low Preferring (WLP) rats. METHODS Microarray analysis comparing gene expression in nucleus accumbens (NAc), hippocampus (HP) and medial prefrontal cortex (mPFC) was performed in male WHP and WLP rats bred for differences in ethanol preference. RESULTS Differential and stable between biological repeats expression of 345, 254 and 129 transcripts in NAc, HP and mPFC was detected. Identified genes and processes included known mediators of ethanol response (Mx2, Fam111a, Itpr1, Gabra4, Agtr1a, LTP/LTD, renin-angiotensin signaling pathway), toxicity (Sult1c2a, Ces1, inflammatory response), as well as genes involved in regulation of important addiction-related brain systems such as dopamine, tachykinin or acetylcholine (Gng7, Tac4, Slc5a7). CONCLUSIONS The identified candidate genes may underlie differential ethanol preference in an animal model of alcoholism. COMMENT Names of genes are written in italics, while names of proteins are written in standard font. Names of human genes/proteins are written in all capital letters. Names of rodent genes/proteins are written in capital letter followed by small letters.
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Affiliation(s)
- Adrian M Stankiewicz
- Department of Animal Behaviour, Institute of Genetics and Animal Breeding, Polish Academy of Sciences, 05-552 Jastrzebiec, Poland
| | - Joanna Goscik
- Software Department, Faculty of Computer Science, Bialystok University of Technology, 15-351 Bialystok, Poland
| | - Wanda Dyr
- Department of Pharmacology and Physiology of the Nervous System, Institute of Psychiatry and Neurology, 02-957 Warsaw, Poland
| | - Grzegorz R Juszczak
- Department of Animal Behaviour, Institute of Genetics and Animal Breeding, Polish Academy of Sciences, 05-552 Jastrzebiec, Poland
| | - Danuta Ryglewicz
- First Department of Neurology, Institute of Psychiatry and Neurology, 02-957 Warsaw, Poland
| | - Artur H Swiergiel
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, 80-308 Gdansk, Poland; Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center, Shreveport, LA71130, USA.
| | - Marek Wieczorek
- Department of Neurobiology, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland
| | - Roman Stefanski
- Department of Pharmacology and Physiology of the Nervous System, Institute of Psychiatry and Neurology, 02-957 Warsaw, Poland
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Miyao M, Kotani H, Ishida T, Kawai C, Manabe S, Abiru H, Tamaki K. Pivotal role of liver sinusoidal endothelial cells in NAFLD/NASH progression. J Transl Med 2015; 95:1130-44. [PMID: 26214582 DOI: 10.1038/labinvest.2015.95] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 05/25/2015] [Accepted: 06/20/2015] [Indexed: 12/11/2022] Open
Abstract
Liver sinusoidal endothelial cells (LSECs) are involved in the transport of nutrients, lipids, and lipoproteins, and LSEC injury occurs in various liver diseases including nonalcoholic fatty liver disease (NAFLD). However, the association between LSEC injury and NAFLD progression remains elusive. Accordingly, in this study, we aimed to elucidate the precise role of LSEC in the pathophysiology of NAFLD using two different mouse models, namely the choline-deficient, L-amino acid-defined and high-fat diet models. Administration of these diets resulted in liver metabolic dysregulation mimicking human NAFLD, such as steatosis, ballooning, lobular inflammation, and fibrosis, as well as central obesity, insulin resistance, and hyperlipidemia. LSEC injury appeared during the simple steatosis phase, and preceded the appearance of activated Kupffer cells and hepatic stellate cells (HSCs). These results indicate that LSEC injury may have a 'gatekeeper' role in the progression from simple steatosis to the early nonalcoholic steatohepatitis (NASH) stage, and LSEC injury may be necessary for the activation of Kupffer cells and HSCs, which in turn results in the development and perpetuation of chronic liver injuries. Taken together, our data provide new insights into the role of LSEC injury in NAFLD/NASH pathogenesis.
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Affiliation(s)
- Masashi Miyao
- Department of Forensic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hirokazu Kotani
- Department of Forensic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tokiko Ishida
- Department of Forensic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Chihiro Kawai
- Department of Forensic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sho Manabe
- Department of Forensic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hitoshi Abiru
- Department of Forensic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Keiji Tamaki
- Department of Forensic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Liu J. Ethanol and liver: Recent insights into the mechanisms of ethanol-induced fatty liver. World J Gastroenterol 2014; 20:14672-14685. [PMID: 25356030 PMCID: PMC4209533 DOI: 10.3748/wjg.v20.i40.14672] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 03/18/2014] [Accepted: 06/13/2014] [Indexed: 02/06/2023] Open
Abstract
Alcoholic fatty liver disease (AFLD), a potentially pathologic condition, can progress to steatohepatitis, fibrosis, and cirrhosis, leading to an increased probability of hepatic failure and death. Alcohol induces fatty liver by increasing the ratio of reduced form of nicotinamide adenine dinucleotide to oxidized form of nicotinamide adenine dinucleotide in hepatocytes; increasing hepatic sterol regulatory element-binding protein (SREBP)-1, plasminogen activator inhibitor (PAI)-1, and early growth response-1 activity; and decreasing hepatic peroxisome proliferator-activated receptor-α activity. Alcohol activates the innate immune system and induces an imbalance of the immune response, which is followed by activated Kupffer cell-derived tumor necrosis factor (TNF)-α overproduction, which is in turn responsible for the changes in the hepatic SREBP-1 and PAI-1 activity. Alcohol abuse promotes the migration of bone marrow-derived cells (BMDCs) to the liver and then reprograms TNF-α expression from BMDCs. Chronic alcohol intake triggers the sympathetic hyperactivity-activated hepatic stellate cell (HSC) feedback loop that in turn activates the HSCs, resulting in HSC-derived TNF-α overproduction. Carvedilol may block this feedback loop by suppressing sympathetic activity, which attenuates the progression of AFLD. Clinical studies evaluating combination therapy of carvedilol with a TNF-α inhibitor to treat patients with AFLD are warranted to prevent the development of alcoholic liver disease.
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Mandrekar P, Ambade A. Immunity and inflammatory signaling in alcoholic liver disease. Hepatol Int 2014; 8 Suppl 2:439-46. [PMID: 26201323 PMCID: PMC4587491 DOI: 10.1007/s12072-014-9518-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 01/06/2014] [Indexed: 12/20/2022]
Abstract
The pathogenesis of alcoholic liver disease (ALD) is multifactorial and characterized by steatosis, steatohepatitis and cirrhosis. Several signaling pathways in different liver cell types that contribute to the development and progression of alcoholic liver injury have been identified. Among these, immune cells and signaling pathways are the most prominent and central to ALD. Both innate and adaptive immune responses contribute to ALD. The key features of inflammatory pathways in ALD including liver innate and adaptive immune cell types, signaling receptors/pathways, and pro- and antiinflammatory/protective responses are summarized here.
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Affiliation(s)
- Pranoti Mandrekar
- Department of Medicine, University of Massachusetts Medical School, LRB 221, 364 Plantation Street, Worcester, MA, 01605, USA.
| | - Aditya Ambade
- Department of Medicine, University of Massachusetts Medical School, LRB 270i, 364 Plantation Street, Worcester, MA, 01605, USA
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Svinka J, Mikulits W, Eferl R. STAT3 in hepatocellular carcinoma: new perspectives. Hepat Oncol 2014; 1:107-120. [PMID: 30190945 PMCID: PMC6114013 DOI: 10.2217/hep.13.7] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Chronic liver damage and inflammation are strong promoters of hepatocellular carcinoma (HCC) formation. HCC cells communicate with inflammatory and stromal cells via cytokine/chemokine signals. These heterotypic interactions inhibit immunologic anticancer activities and promote protumorigenic activities, such as angiogenesis or invasiveness. STAT3 mediates several reciprocal interactions between liver cancer cells and stromal cells and modulates preconditions of tumor formation such as chronic inflammation. Therefore, activation of STAT3 is considered as a tumor-promoting event in HCC formation. However, the oncogenic role of STAT3 in cancers has been challenged by several reports that suggest a tumor-suppressive activity. Here we discuss tumor-promoting and tumor-suppressive effects of cytokine-activated STAT3 in HCC.
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Affiliation(s)
- Jasmin Svinka
- Medical University Vienna & Comprehensive Cancer Center, Institute for Cancer Research, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Wolfgang Mikulits
- Medical University Vienna & Comprehensive Cancer Center, Institute for Cancer Research, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Robert Eferl
- Medical University Vienna & Comprehensive Cancer Center, Institute for Cancer Research, Borschkegasse 8a, A-1090 Vienna, Austria
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Betulinic acid and betulin ameliorate acute ethanol-induced fatty liver via TLR4 and STAT3 in vivo and in vitro. Int Immunopharmacol 2013; 17:184-90. [DOI: 10.1016/j.intimp.2013.06.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 05/13/2013] [Accepted: 06/11/2013] [Indexed: 02/07/2023]
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44
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Türei D, Papp D, Fazekas D, Földvári-Nagy L, Módos D, Lenti K, Csermely P, Korcsmáros T. NRF2-ome: an integrated web resource to discover protein interaction and regulatory networks of NRF2. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:737591. [PMID: 23710289 PMCID: PMC3654349 DOI: 10.1155/2013/737591] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 03/19/2013] [Indexed: 12/30/2022]
Abstract
NRF2 is the master transcriptional regulator of oxidative and xenobiotic stress responses. NRF2 has important roles in carcinogenesis, inflammation, and neurodegenerative diseases. We developed an online resource, NRF2-ome, to provide an integrated and systems-level database for NRF2. The database contains manually curated and predicted interactions of NRF2 as well as data from external interaction databases. We integrated NRF2 interactome with NRF2 target genes, NRF2 regulating TFs, and miRNAs. We connected NRF2-ome to signaling pathways to allow mapping upstream NRF2 regulatory components that could directly or indirectly influence NRF2 activity totaling 35,967 protein-protein and signaling interactions. The user-friendly website allows researchers without computational background to search, browse, and download the database. The database can be downloaded in SQL, CSV, BioPAX, SBML, PSI-MI, and in a Cytoscape CYS file formats. We illustrated the applicability of the website by suggesting a posttranscriptional negative feedback of NRF2 by MAFG protein and raised the possibility of a connection between NRF2 and the JAK/STAT pathway through STAT1 and STAT3. NRF2-ome can also be used as an evaluation tool to help researchers and drug developers to understand the hidden regulatory mechanisms in the complex network of NRF2.
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Affiliation(s)
- Dénes Türei
- Department of Genetics, Eötvös Loránd University, Pázmány P. s. 1C, H-1117, Budapest, Hungary
- Department of Medical Chemistry, Faculty of Medicine, Semmelweis University, Tűzoltó u. 37-47, H-1094, Budapest, Hungary
| | - Diána Papp
- Department of Genetics, Eötvös Loránd University, Pázmány P. s. 1C, H-1117, Budapest, Hungary
- Department of Medical Chemistry, Faculty of Medicine, Semmelweis University, Tűzoltó u. 37-47, H-1094, Budapest, Hungary
| | - Dávid Fazekas
- Department of Genetics, Eötvös Loránd University, Pázmány P. s. 1C, H-1117, Budapest, Hungary
| | - László Földvári-Nagy
- Department of Genetics, Eötvös Loránd University, Pázmány P. s. 1C, H-1117, Budapest, Hungary
| | - Dezső Módos
- Department of Genetics, Eötvös Loránd University, Pázmány P. s. 1C, H-1117, Budapest, Hungary
- Department of Medical Chemistry, Faculty of Medicine, Semmelweis University, Tűzoltó u. 37-47, H-1094, Budapest, Hungary
- Department of Morphology and Physiology, Faculty of Health Sciences, Semmelweis University, Vas u. 17, H-1088, Budapest, Hungary
| | - Katalin Lenti
- Department of Morphology and Physiology, Faculty of Health Sciences, Semmelweis University, Vas u. 17, H-1088, Budapest, Hungary
| | - Péter Csermely
- Department of Medical Chemistry, Faculty of Medicine, Semmelweis University, Tűzoltó u. 37-47, H-1094, Budapest, Hungary
| | - Tamás Korcsmáros
- Department of Genetics, Eötvös Loránd University, Pázmány P. s. 1C, H-1117, Budapest, Hungary
- Department of Medical Chemistry, Faculty of Medicine, Semmelweis University, Tűzoltó u. 37-47, H-1094, Budapest, Hungary
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Fowler AK, Hewetson A, Agrawal RG, Dagda M, Dagda R, Moaddel R, Balbo S, Sanghvi M, Chen Y, Hogue RJ, Bergeson SE, Henderson GI, Kruman II. Alcohol-induced one-carbon metabolism impairment promotes dysfunction of DNA base excision repair in adult brain. J Biol Chem 2012; 287:43533-42. [PMID: 23118224 DOI: 10.1074/jbc.m112.401497] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The brain is one of the major targets of chronic alcohol abuse. Yet the fundamental mechanisms underlying alcohol-mediated brain damage remain unclear. The products of alcohol metabolism cause DNA damage, which in conditions of DNA repair dysfunction leads to genomic instability and neural death. We propose that one-carbon metabolism (OCM) impairment associated with long term chronic ethanol intake is a key factor in ethanol-induced neurotoxicity, because OCM provides cells with DNA precursors for DNA repair and methyl groups for DNA methylation, both critical for genomic stability. Using histological (immunohistochemistry and stereological counting) and biochemical assays, we show that 3-week chronic exposure of adult mice to 5% ethanol (Lieber-Decarli diet) results in increased DNA damage, reduced DNA repair, and neuronal death in the brain. These were concomitant with compromised OCM, as evidenced by elevated homocysteine, a marker of OCM dysfunction. We conclude that OCM dysfunction plays a causal role in alcohol-induced genomic instability in the brain because OCM status determines the alcohol effect on DNA damage/repair and genomic stability. Short ethanol exposure, which did not disturb OCM, also did not affect the response to DNA damage, whereas additional OCM disturbance induced by deficiency in a key OCM enzyme, methylenetetrahydrofolate reductase (MTHFR) in Mthfr(+/-) mice, exaggerated the ethanol effect on DNA repair. Thus, the impact of long term ethanol exposure on DNA repair and genomic stability in the brain results from OCM dysfunction, and MTHFR mutations such as Mthfr 677C→T, common in human population, may exaggerate the adverse effects of ethanol on the brain.
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Affiliation(s)
- Anna-Kate Fowler
- Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, Texas 79430, USA
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Goettsch C, Kliemt S, Sinningen K, von Bergen M, Hofbauer LC, Kalkhof S. Quantitative proteomics reveals novel functions of osteoclast-associated receptor in STAT signaling and cell adhesion in human endothelial cells. J Mol Cell Cardiol 2012; 53:829-37. [PMID: 22985931 DOI: 10.1016/j.yjmcc.2012.09.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Revised: 09/03/2012] [Accepted: 09/04/2012] [Indexed: 12/11/2022]
Abstract
Previous studies indicate a novel role for the osteoclast-associated receptor (OSCAR) in oxidative stress-mediated atherogenesis. However, the functional role of OSCAR in endothelial cells is unknown. Here we characterized OSCAR signaling in human endothelial cells using a proteomic approach. OSCAR was either overexpressed or silenced, and the functional effects were assessed by an in-depth proteomic study using stable isotope labeling with amino acids in cell culture (SILAC). Reduction of complexity using subcellular protein fractions from the membrane, the cytosol, and the nucleus of human endothelial cells enabled the detection of 4975 unique proteins. Of these proteins, OSCAR overexpression regulated 145 and OSCAR silencing regulated 110. These proteins were mainly involved in cellular proliferation, inflammatory response and cell-to-cell signaling. Interestingly, OSCAR modulation reciprocally regulated signal transducer and activator of transcription 1 (STAT1) and 3 (STAT3). Thus, STAT1 and several interferon-induced proteins showed a clear inverse correlation to OSCAR expression, which was further verified by Western blot analysis. In contrast, it was found that OSCAR overexpression activated STAT3. Furthermore, OSCAR overexpression increased proteins involved in cell adhesion, which correlated with an increased adhesion of monocytes to the endothelium after OSCAR overexpression. In conclusion, using a comprehensive proteomic approach, endothelial cell-derived OSCAR was found to be involved in the STAT signaling pathway and to affect monocyte adhesion. This indicates a novel role of OSCAR in the vascular-immune cross-talk.
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Affiliation(s)
- Claudia Goettsch
- Division of Endocrinology, Diabetes, and Bone Diseases, Dresden Technical University Medical Center, Dresden, Germany
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Estrogen suppresses heptatic IκB expression during short-term alcohol exposure. Inflamm Res 2012; 61:1053-61. [DOI: 10.1007/s00011-012-0497-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 04/25/2012] [Accepted: 05/22/2012] [Indexed: 02/07/2023] Open
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Abstract
Frank Burr Mallory's landmark observation in 1911 on the histopathology of alcoholic liver disease (ALD) was the first identification of a link between inflammation and ALD. In this review, we summarize recent advances regarding the origins and roles of various inflammatory components in ALD. Metabolism of ethanol generates a number of metabolites, including acetate, reactive oxygen species, acetaldehyde, and epigenetic changes, that can induce inflammatory responses. Alcohol and its metabolites can also initiate and aggravate inflammatory conditions by promoting gut leakiness of microbial products, by sensitizing immune cells to stimulation, and by activating innate immune pathways, such as complement. Chronic alcohol consumption also sensitizes nonimmune cells, e.g., hepatocytes, to inflammatory signals and impairs their ability to respond to protective signals. Based on these advances, a number of inflammatory targets have been identified with potential for therapeutic intervention in ALD, presenting new opportunities and challenges for translational research.
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Affiliation(s)
- H Joe Wang
- Division of Metabolism and Health Effects, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland 20892, USA.
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Pasarín M, La Mura V, Gracia-Sancho J, García-Calderó H, Rodríguez-Vilarrupla A, García-Pagán JC, Bosch J, Abraldes JG. Sinusoidal endothelial dysfunction precedes inflammation and fibrosis in a model of NAFLD. PLoS One 2012. [PMID: 22509248 DOI: 10.1371/journal,pone.0032785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of the metabolic syndrome. Most morbidity associated with the metabolic syndrome is related to vascular complications, in which endothelial dysfunction is a major pathogenic factor. However, whether NAFLD is associated with endothelial dysfunction within the hepatic vasculature is unknown. The aims of this study were to explore, in a model of diet-induced overweight that expresses most features of the metabolic syndrome, whether early NAFLD is associated with liver endothelial dysfunction. Wistar Kyoto rats were fed a cafeteria diet (CafD; 65% of fat, mostly saturated) or a control diet (CD) for 1 month. CafD rats developed features of the metabolic syndrome (overweight, arterial hypertension, hypertryglyceridemia, hyperglucemia and insulin resistance) and liver steatosis without inflammation or fibrosis. CafD rats had a significantly higher in vivo hepatic vascular resistance than CD. In liver perfusion livers from CafD rats had an increased portal perfusion pressure and decreased endothelium-dependent vasodilation. This was associated with a decreased Akt-dependent eNOS phosphorylation and NOS activity. In summary, we demonstrate in a rat model of the metabolic syndrome that shows features of NAFLD, that liver endothelial dysfunction occurs before the development of fibrosis or inflammation.
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Affiliation(s)
- Marcos Pasarín
- Hepatic Hemodynamic Laboratory, Liver Unit, Hospital Clínic-IDIBAPS, CIBERrehd, University of Barcelona, Barcelona, Spain
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Abstract
The activation of innate immunity by various factors (e.g. lipopolysaccharide and complements) plays an important role in initiating and promoting alcoholic liver injury via the stimulation of Kupffer cells to induce oxidative stress and to produce pro-inflammatory cytokines (e.g. tumor necrosis factor [TNF]-α) that cause hepatocellular damage. Accumulating evidence suggests that the activation of innate immunity also stimulates Kupffer cells to produce the hepatoprotective cytokine interleukin-6 (IL-6) and the anti-inflammatory cytokine IL-10 during alcoholic liver injury. IL-6 protects against alcoholic liver injury via the activation of signal transducer and activator of transcription 3 (STAT3) and the subsequent induction of a variety of hepatoprotective genes in hepatocytes. IL-10 inhibits alcoholic liver inflammation via the activation of STAT3 in Kupffer cells/macrophages and the subsequent inhibition of liver inflammation. Recent studies have suggested that IL-10 may play a dual role in controlling ethanol-induced steatosis and liver injury via the inhibition of the pro-inflammatory cytokine TNF-α, thereby ameliorating alcoholic liver injury, or via the inhibition of the hepatoprotective cytokine IL-6, thereby potentiating alcoholic liver injury. IL-22 is another important hepatoprotective cytokine that protects against acute and chronic alcoholic liver injury by binding to a receptor complex composed of IL-10R2 and IL-22R chains on the surfaces of hepatocytes. Finally, IL-22 treatment is a potential therapeutic option for treating severe forms of alcoholic liver disease because of its antioxidant, antiapoptotic, antisteatotic, proliferative, and antimicrobial effects, as well as the potential added benefit of few side effects.
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Affiliation(s)
- Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland 20892, USA.
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