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Arndt P, Turkowski K, Cekay M, Eul B, Grimminger F, Savai R. Endothelin and the tumor microenvironment: a finger in every pie. Clin Sci (Lond) 2024; 138:617-634. [PMID: 38785410 PMCID: PMC11130555 DOI: 10.1042/cs20240426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024]
Abstract
The tumor microenvironment (TME) plays a central role in the development of cancer. Within this complex milieu, the endothelin (ET) system plays a key role by triggering epithelial-to-mesenchymal transition, causing degradation of the extracellular matrix and modulating hypoxia response, cell proliferation, composition, and activation. These multiple effects of the ET system on cancer progression have prompted numerous preclinical studies targeting the ET system with promising results, leading to considerable optimism for subsequent clinical trials. However, these clinical trials have not lived up to the high expectations; in fact, the clinical trials have failed to demonstrate any substantiated benefit of targeting the ET system in cancer patients. This review discusses the major and recent advances of the ET system with respect to TME and comments on past and ongoing clinical trials of the ET system.
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Affiliation(s)
- Philipp F. Arndt
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the Cardio-Pulmonary Institute (CPI), Member of the German Centre for Lung Research (DZL), Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Member of the DZL, Member of the CPI, Bad Nauheim, Germany
| | - Kati Turkowski
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Member of the DZL, Member of the CPI, Bad Nauheim, Germany
| | - Michael J. Cekay
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the Cardio-Pulmonary Institute (CPI), Member of the German Centre for Lung Research (DZL), Giessen, Germany
| | - Bastian Eul
- Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the Cardio-Pulmonary Institute (CPI), Member of the German Centre for Lung Research (DZL), Giessen, Germany
| | - Friedrich Grimminger
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the Cardio-Pulmonary Institute (CPI), Member of the German Centre for Lung Research (DZL), Giessen, Germany
| | - Rajkumar Savai
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the Cardio-Pulmonary Institute (CPI), Member of the German Centre for Lung Research (DZL), Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Member of the DZL, Member of the CPI, Bad Nauheim, Germany
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2
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An SX, Yu ZJ, Fu C, Wei MJ, Shen LH. Biological factors driving colorectal cancer metastasis. World J Gastrointest Oncol 2024; 16:259-272. [PMID: 38425391 PMCID: PMC10900157 DOI: 10.4251/wjgo.v16.i2.259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 12/23/2023] [Accepted: 01/08/2024] [Indexed: 02/02/2024] Open
Abstract
Approximately 20% of colorectal cancer (CRC) patients present with metastasis at diagnosis. Among Stage I-III CRC patients who undergo surgical resection, 18% typically suffer from distal metastasis within the first three years following initial treatment. The median survival duration after the diagnosis of metastatic CRC (mCRC) is only 9 mo. mCRC is traditionally considered to be an advanced stage malignancy or is thought to be caused by incomplete resection of tumor tissue, allowing cancer cells to spread from primary to distant organs; however, increasing evidence suggests that the mCRC process can begin early in tumor development. CRC patients present with high heterogeneity and diverse cancer phenotypes that are classified on the basis of molecular and morphological alterations. Different genomic and nongenomic events can induce subclone diversity, which leads to cancer and metastasis. Throughout the course of mCRC, metastatic cascades are associated with invasive cancer cell migration through the circulatory system, extravasation, distal seeding, dormancy, and reactivation, with each step requiring specific molecular functions. However, cancer cells presenting neoantigens can be recognized and eliminated by the immune system. In this review, we explain the biological factors that drive CRC metastasis, namely, genomic instability, epigenetic instability, the metastatic cascade, the cancer-immunity cycle, and external lifestyle factors. Despite remarkable progress in CRC research, the role of molecular classification in therapeutic intervention remains unclear. This review shows the driving factors of mCRC which may help in identifying potential candidate biomarkers that can improve the diagnosis and early detection of mCRC cases.
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Affiliation(s)
- Shuai-Xing An
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, Liaoning Province, China
- Liaoning Key Laboratory of Molecular Targeted Antitumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Shenyang 110122, Liaoning Province, China
- BD Department, Greenpine Pharma Group Co., Ltd, Tianjin 300020, China
| | - Zhao-Jin Yu
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, Liaoning Province, China
- Liaoning Key Laboratory of Molecular Targeted Antitumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Shenyang 110122, Liaoning Province, China
| | - Chen Fu
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, Liaoning Province, China
- Liaoning Key Laboratory of Molecular Targeted Antitumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Shenyang 110122, Liaoning Province, China
| | - Min-Jie Wei
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, Liaoning Province, China
- Liaoning Key Laboratory of Molecular Targeted Antitumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Shenyang 110122, Liaoning Province, China
| | - Long-Hai Shen
- Center of Oncology, Genertec Liaoyou Gem Flower Hospital, PanJin 124010, Liaoning Province, China
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Slawski J, Jaśkiewicz M, Barton A, Kozioł S, Collawn JF, Bartoszewski R. Regulation of the HIF switch in human endothelial and cancer cells. Eur J Cell Biol 2024; 103:151386. [PMID: 38262137 DOI: 10.1016/j.ejcb.2024.151386] [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: 10/25/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024] Open
Abstract
Hypoxia-inducible factors (HIFs) are transcription factors that reprogram the transcriptome for cells to survive hypoxic insults and oxidative stress. They are important during embryonic development and reprogram the cells to utilize glycolysis when the oxygen levels are extremely low. This metabolic change facilitates normal cell survival as well as cancer cell survival. The key feature in survival is the transition between acute hypoxia and chronic hypoxia, and this is regulated by the transition between HIF-1 expression and HIF-2/HIF-3 expression. This transition is observed in many human cancers and endothelial cells and referred to as the HIF Switch. Here we discuss the mechanisms involved in the HIF Switch in human endothelial and cancer cells which include mRNA and protein levels of the alpha chains of the HIFs. A major continuing effort in this field is directed towards determining the differences between normal and tumor cell utilization of this important pathway, and how this could lead to potential therapeutic approaches.
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Affiliation(s)
- Jakub Slawski
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Maciej Jaśkiewicz
- International Research Agenda 3P, Medicine Laboratory, Medical University of Gdansk, Gdansk, Poland
| | - Anna Barton
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Sylwia Kozioł
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - James F Collawn
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, USA
| | - Rafał Bartoszewski
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland.
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Yamazaki T, Schnabl B. Acute alcohol-associated hepatitis: Latest findings in non-invasive biomarkers and treatment. Liver Int 2023:10.1111/liv.15608. [PMID: 37183549 PMCID: PMC10646153 DOI: 10.1111/liv.15608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/15/2023] [Accepted: 05/03/2023] [Indexed: 05/16/2023]
Abstract
Acute alcohol-associated hepatitis (AH) is a syndrome that occurs in heavy and long-term drinkers and results in severe jaundice and liver failure. The mortality rate in severe cases is 20%-50% at 28 days, and in cases that do not improve despite appropriately timed corticosteroid therapy, the mortality rate reaches 70% at 6 months. The only curative treatment is early liver transplantation, but less than 2% of patients with severe AH are eligible. In order to improve the prognosis, diagnostic tools are needed to detect appropriate cases at risk of severe conditions, and new therapies need to be developed that can replace corticosteroids. Recent research has revealed that the pathogenesis of AH involves a complex of factors, including changes in the gut microbiota, inflammatory and cytokine signalling, oxidative stress and mitochondrial dysfunction, and abnormalities in the hepatic regenerative capacity. Non-invasive diagnostic tools focusing on these specific pathologies have been reported in recent years. In addition, several novel agents targeting specific pathways are currently being developed and tested in clinical trials. This review will provide an overview of alcohol-associated hepatitis and focus on the latest diagnostic tools, particularly non-invasive biomarkers, and novel therapies.
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Affiliation(s)
- Tomoo Yamazaki
- Department of Medicine, University of California San Diego, La Jolla, California, USA
- Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Nagano, Matsumoto, Japan
| | - Bernd Schnabl
- Department of Medicine, University of California San Diego, La Jolla, California, USA
- Department of Medicine, VA San Diego Healthcare System, California, San Diego, USA
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Yeligar SM, Harris FL, Brown LAS, Hart CM. Pharmacological reversal of post-transcriptional alterations implicated in alcohol-induced alveolar macrophage dysfunction. Alcohol 2023; 106:30-43. [PMID: 36328183 PMCID: PMC10080543 DOI: 10.1016/j.alcohol.2022.10.003] [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: 01/07/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022]
Abstract
Alcohol use disorders (AUD) cause alveolar macrophage (AM) immune dysfunction and increase risk of lung infections. Excessive alcohol use causes AM oxidative stress, which impairs AM phagocytosis and pathogen clearance from the alveolar space. Alcohol induces expression of NADPH oxidases (Noxes), primary sources of oxidative stress in AM. In contrast, alcohol decreases AM peroxisome proliferator-activated receptor gamma (PPARγ), a critical regulator of AM immune function. To explore the underlying molecular mechanisms for these effects of alcohol, we hypothesized that ethanol promotes CCAAT/enhancer-binding protein beta (C/EBPβ)-mediated suppression of Nox-related microRNAs (miRs), in turn enhancing AM Nox expression, oxidative stress, and phagocytic dysfunction. We also hypothesized that PPARγ activation with pioglitazone (PIO) would reverse alcohol-induced C/EBPβ expression and attenuate AM oxidative stress and phagocytic dysfunction. Cells from the mouse AM cell line (MH-S) were exposed to ethanol in vitro or primary AM were isolated from mice fed ethanol in vivo. Ethanol enhanced C/EBPβ expression, decreased Nox 1-related miR-1264 and Nox 2-related miR-107 levels, and increased Nox1, Nox2, and Nox 4 expression in MH-S cells in vitro and mouse AM in vivo. These alcohol-induced AM derangements were abrogated by loss of C/EBPβ, overexpression of miRs-1264 or -107, or PIO treatment. These findings identify C/EBPβ and Nox-related miRs as novel therapeutic targets for PPARγ ligands, which could provide a translatable strategy to mitigate susceptibility to lung infections in people with a history of AUD. These studies further clarify the molecular underpinnings for a previous clinical trial using short-term PIO treatment to improve AM immunity in AUD individuals.
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Affiliation(s)
- Samantha M Yeligar
- Emory University, Department of Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Atlanta, Georgia, United States; Atlanta Veterans Affairs Health Care System, Decatur, Georgia, United States.
| | - Frank L Harris
- Emory University, Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Emory + Children's Healthcare of Atlanta Center for Developmental Lung Biology, Atlanta, Georgia, United States
| | - Lou Ann S Brown
- Emory University, Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Emory + Children's Healthcare of Atlanta Center for Developmental Lung Biology, Atlanta, Georgia, United States
| | - C Michael Hart
- Emory University, Department of Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Atlanta, Georgia, United States; Atlanta Veterans Affairs Health Care System, Decatur, Georgia, United States
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6
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Im GY. Emerging Biomarkers in Alcohol-associated Hepatitis. J Clin Exp Hepatol 2023; 13:103-115. [PMID: 36647419 PMCID: PMC9840081 DOI: 10.1016/j.jceh.2022.07.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 07/14/2022] [Accepted: 07/17/2022] [Indexed: 01/19/2023] Open
Abstract
Alcohol-associated hepatitis (AH) is a clinical syndrome of jaundice, abdominal pain, and anorexia due to prolonged heavy alcohol intake. AH is associated with changes in gene expression, cytokines, immune response, and the gut microbiome. There are limited biomarkers to diagnose and prognosticate in AH, but several non-invasive biomarkers are emerging. In this review, clinical risk-stratifying algorithms, promising AH biomarkers like cytokeratin-18 fragments, genetic polymorphisms, and microRNAs will be reviewed.
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Key Words
- AH, Alcohol-associated hepatitis
- ALD, alcohol-associated liver disease
- ASCA, anti–Saccharomyces cerevisiae antibodies
- AUC, area under the curve
- FGF, fibroblast growth factor
- GAHS, Glasgow alcohol-associated hepatitis score
- HCC, hepatocellular carcinoma
- MELD, model for end-stage liver disease
- NASH, non-alcohol-associated steatohepatitis
- PPV, positive predictive value
- PT, prothrombin time
- VCTE, vibration-controlled transient elastography
- alcohol-associated hepatitis
- biomarkers
- cytokines
- miRNAs, MicroRNAs
- microRNA
- microbiome
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Affiliation(s)
- Gene Y. Im
- Icahn School of Medicine at Mount Sinai, Division of Liver Diseases, Recanati/Miller Transplantation Institute, New York, NY, USA
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NOX as a Therapeutic Target in Liver Disease. Antioxidants (Basel) 2022; 11:antiox11102038. [PMID: 36290761 PMCID: PMC9598239 DOI: 10.3390/antiox11102038] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/17/2022] Open
Abstract
The nicotinamide adenine dinucleotide phosphate hydrogen oxidase (NADPH oxidase or NOX) plays a critical role in the inflammatory response and fibrosis in several organs such as the lungs, pancreas, kidney, liver, and heart. In the liver, NOXs contribute, through the generation of reactive oxygen species (ROS), to hepatic fibrosis by acting through multiple pathways, including hepatic stellate cell activation, proliferation, survival, and migration of hepatic stellate cells; hepatocyte apoptosis, enhancement of fibrogenic mediators, and mediation of an inflammatory cascade in both Kupffer cells and hepatic stellate cells. ROS are overwhelmingly produced during malignant transformation and hepatic carcinogenesis (HCC), creating an oxidative microenvironment that can cause different and various types of cellular stress, including DNA damage, ER stress, cell death of damaged hepatocytes, and oxidative stress. NOX1, NOX2, and NOX4, members of the NADPH oxidase family, have been linked to the production of ROS in the liver. This review will analyze some diseases related to an increase in oxidative stress and its relationship with the NOX family, as well as discuss some therapies proposed to slow down or control the disease's progression.
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Dutta P, Sengupta A, Chakraborty S. Epigenetics: a new warrior against cardiovascular calcification, a forerunner in modern lifestyle diseases. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:62093-62110. [PMID: 34601672 DOI: 10.1007/s11356-021-15718-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Arterial and aortic valve calcifications are the most prevalent pathophysiological conditions among all the reported cases of cardiovascular calcifications. It increases with several risk factors like age, hypertension, external stimuli, mechanical forces, lipid deposition, malfunction of genes and signaling pathways, enhancement of naturally occurring calcium inhibitors, and many others. Modern-day lifestyle is affected by numerous environmental factors and harmful toxins that impair our health rather than providing benefits. Applying the combinatorial approach or targeting the exact mechanism could be a new strategy for drug designing or attenuating the severity of calcification. Most of the non-communicable diseases are life-threatening; thus, altering the phenotype and not the genotype may reveal the gateway for fighting with upcoming hurdles. Overall, this review summarizes the reason behind the generation of arterial and aortic valve calcification and its related signaling pathways and also the detrimental effects of calcification. In addition, the individual process of epigenetics and how the implementation of this process becomes a novel approach for diminishing the harmful effect of calcification are discussed. Noteworthy, as epigenetics is linked with genetics and environmental factors necessitates further clinical trials for complete and in-depth understanding and application of this strategy in a more specific and prudent manner.
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Affiliation(s)
- Parna Dutta
- Department of Life Sciences, Presidency University, 86/1, College Street, Baker building, 2nd floor, Kolkata, West Bengal, 700073, India
| | - Arunima Sengupta
- Department of Life science & Bio-technology, Jadavpur University, Kolkata, 700032, India
| | - Santanu Chakraborty
- Department of Life Sciences, Presidency University, 86/1, College Street, Baker building, 2nd floor, Kolkata, West Bengal, 700073, India.
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Czaja AJ. Examining micro-ribonucleic acids as diagnostic and therapeutic prospects in autoimmune hepatitis. Expert Rev Clin Immunol 2022; 18:591-607. [PMID: 35510750 DOI: 10.1080/1744666x.2022.2074839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Micro-ribonucleic acids modulate the immune response by affecting the post-transcriptional expression of genes that influence the proliferation and function of activated immune cells, including regulatory T cells. Individual expressions or patterns in peripheral blood and liver tissue may have diagnostic value, reflect treatment response, or become therapeutic targets. The goals of this review are to present the properties and actions of micro-ribonucleic acids, indicate the key individual expressions in autoimmune hepatitis, and describe prospective clinical applications in diagnosis and management. AREAS COVERED Abstracts were identified in PubMed using the search words "microRNAs", "microRNAs in liver disease", and "microRNAs in autoimmune hepatitis". The number of abstracts reviewed exceeded 2000, and the number of full-length articles reviewed was 108. EXPERT OPINION Individual micro-ribonucleic acids, miR-21, miR-122, and miR-155, have been associated with biochemical severity, histological grade of inflammation, and pivotal pathogenic mechanisms in autoimmune hepatitis. Antisense oligonucleotides that down-regulate deleterious individual gene expressions, engineered molecules that impair targeting of gene products, and drugs that non-selectively up-regulate the biogenesis of potentially deficient gene regulators are feasible treatment options. Micro-ribonucleic acids constitute an under-evaluated area in autoimmune hepatitis that promises to improve diagnosis, pathogenic concepts, and therapy.
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Affiliation(s)
- Albert J Czaja
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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Habash NW, Sehrawat TS, Shah VH, Cao S. Epigenetics of alcohol-related liver diseases. JHEP REPORTS : INNOVATION IN HEPATOLOGY 2022; 4:100466. [PMID: 35462859 PMCID: PMC9018389 DOI: 10.1016/j.jhepr.2022.100466] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/14/2022] [Accepted: 02/22/2022] [Indexed: 02/07/2023]
Abstract
Alcohol-related liver disease (ARLD) is a primary cause of chronic liver disease in the United States. Despite advances in the diagnosis and management of ARLD, it remains a major public health problem associated with significant morbidity and mortality, emphasising the need to adopt novel approaches to the study of ARLD and its complications. Epigenetic changes are increasingly being recognised as contributing to the pathogenesis of multiple disease states. Harnessing the power of innovative technologies for the study of epigenetics (e.g., next-generation sequencing, DNA methylation assays, histone modification profiling and computational techniques like machine learning) has resulted in a seismic shift in our understanding of the pathophysiology of ARLD. Knowledge of these techniques and advances is of paramount importance for the practicing hepatologist and researchers alike. Accordingly, in this review article we will summarise the current knowledge about alcohol-induced epigenetic alterations in the context of ARLD, including but not limited to, DNA hyper/hypo methylation, histone modifications, changes in non-coding RNA, 3D chromatin architecture and enhancer-promoter interactions. Additionally, we will discuss the state-of-the-art techniques used in the study of ARLD (e.g. single-cell sequencing). We will also highlight the epigenetic regulation of chemokines and their proinflammatory role in the context of ARLD. Lastly, we will examine the clinical applications of epigenetics in the diagnosis and management of ARLD.
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Key Words
- 3C, chromosome conformation capture
- 4C, chromosome conformation capture-on-chip
- AH, alcohol-related hepatitis
- ARLD, alcohol-related liver disease
- ASH, alcohol-related steatohepatitis
- ATAC, assay for transposase-accessible chromatin
- Acetylation
- Alcohol liver disease
- BET, bromodomain and extraterminal motif
- BETi, BET inhibitor
- BRD, bromodomain
- CCL2, C-C motif chemokine ligand 2
- CTCF, CCCTC-binding factor
- CXCL, C-X-C motif chemokine ligand
- Chromatin architecture
- Computational biology
- DNA methylation
- DNMT, DNA methyltransferase
- E-P, enhancer-promoter
- Epidrugs
- Epigenetics
- FKBP5, FK506-binding protein 5
- HCC, hepatocellular carcinoma
- HDAC, histone deacetylase
- HIF1α, hypoxia inducible factor-1α
- HMGB1, high-mobility group box protein 1
- HNF4α, hepatocyte nuclear factor 4α
- HSC, hepatic stellate cell
- Hi-C, chromosome capture followed by high-throughput sequencing
- Histones
- IL, interleukin
- LPS, lipopolysaccharide
- MALAT1, metastasis-associated lung adenocarcinoma transcript 1
- MECP2, methyl-CpG binding protein 2
- NAFLD, non-alcohol-related fatty liver disease
- PPARG, peroxisome proliferator activated receptor-γ
- SAA, salvianolic acid A
- SIRT, sirtuin
- SREBPs, sterol regulatory element-binding proteins
- Single cell epigenome
- TAD, topologically associating domain
- TEAD, TEA domain transcription factor
- TLR, Toll-like receptor
- TNF, tumour necrosis factor
- YAP, Yes-associated protein
- lncRNA, long non-coding RNA
- miRNA, microRNA
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Affiliation(s)
| | | | - Vijay H. Shah
- Corresponding authors. Address: Division of Gastroenterology and Hepatology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA. Tel. 507-255-6028, fax: 507-255-6318.
| | - Sheng Cao
- Corresponding authors. Address: Division of Gastroenterology and Hepatology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA. Tel. 507-255-6028, fax: 507-255-6318.
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Mead EA, Boulghassoul-Pietrzykowska N, Wang Y, Anees O, Kinstlinger NS, Lee M, Hamza S, Feng Y, Pietrzykowski AZ. Non-Invasive microRNA Profiling in Saliva can Serve as a Biomarker of Alcohol Exposure and Its Effects in Humans. Front Genet 2022; 12:804222. [PMID: 35126468 PMCID: PMC8812725 DOI: 10.3389/fgene.2021.804222] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/13/2021] [Indexed: 12/14/2022] Open
Abstract
Alcohol Use Disorder (AUD) is one of the most prevalent mental disorders worldwide. Considering the widespread occurrence of AUD, a reliable, cheap, non-invasive biomarker of alcohol consumption is desired by healthcare providers, clinicians, researchers, public health and criminal justice officials. microRNAs could serve as such biomarkers. They are easily detectable in saliva, which can be sampled from individuals in a non-invasive manner. Moreover, microRNAs expression is dynamically regulated by environmental factors, including alcohol. Since excessive alcohol consumption is a hallmark of alcohol abuse, we have profiled microRNA expression in the saliva of chronic, heavy alcohol abusers using microRNA microarrays. We observed significant changes in salivary microRNA expression caused by excessive alcohol consumption. These changes fell into three categories: downregulated microRNAs, upregulated microRNAs, and microRNAs upregulated de novo. Analysis of these combinatorial changes in microRNA expression suggests dysregulation of specific biological pathways leading to impairment of the immune system and development of several types of epithelial cancer. Moreover, some of the altered microRNAs are also modulators of inflammation, suggesting their contribution to pro-inflammatory mechanisms of alcohol actions. Establishment of the cellular source of microRNAs in saliva corroborated these results. We determined that most of the microRNAs in saliva come from two types of cells: leukocytes involved in immune responses and inflammation, and buccal cells, involved in development of epithelial, oral cancers. In summary, we propose that microRNA profiling in saliva can be a useful, non-invasive biomarker allowing the monitoring of alcohol abuse, as well as alcohol-related inflammation and early detection of cancer.
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Affiliation(s)
- Edward A. Mead
- Laboratory of Adaptation, Reward and Addiction, Department of Animal Sciences, Rutgers University, New Brunswick, NJ, United States
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- *Correspondence: Edward A. Mead,
| | - Nadia Boulghassoul-Pietrzykowska
- Laboratory of Adaptation, Reward and Addiction, Department of Animal Sciences, Rutgers University, New Brunswick, NJ, United States
- Mayo Clinic Health System, NWWI, Barron, WI, United States
- Department of Medicine, Capital Health, Trenton, NJ, United States
- Weight and Life MD, Hamilton, NJ, United States
| | - Yongping Wang
- Laboratory of Adaptation, Reward and Addiction, Department of Animal Sciences, Rutgers University, New Brunswick, NJ, United States
- Holmdel Township School, Holmdel, NJ, United States
| | - Onaiza Anees
- Laboratory of Adaptation, Reward and Addiction, Department of Animal Sciences, Rutgers University, New Brunswick, NJ, United States
- Virginia Commonwealth University Health, CMH Behavioral Health, South Hill, VA, United States
| | - Noah S. Kinstlinger
- Laboratory of Adaptation, Reward and Addiction, Department of Animal Sciences, Rutgers University, New Brunswick, NJ, United States
- Albert Einstein College of Medicine, Bronx, NY, United States
| | - Maximillian Lee
- Laboratory of Adaptation, Reward and Addiction, Department of Animal Sciences, Rutgers University, New Brunswick, NJ, United States
- George Washington University, School of Medicine and Health Sciences, Washington DC, MA, United States
| | - Shireen Hamza
- Laboratory of Adaptation, Reward and Addiction, Department of Animal Sciences, Rutgers University, New Brunswick, NJ, United States
- Department of the History of Science, Harvard University, Cambridge, MA, United States
| | - Yaping Feng
- Waksman Genomics Core Facility, Rutgers University, Piscataway, NJ, United States
- Bioinformatics Department, Admera Health, South Plainfield, NJ, United States
| | - Andrzej Z. Pietrzykowski
- Laboratory of Adaptation, Reward and Addiction, Department of Animal Sciences, Rutgers University, New Brunswick, NJ, United States
- Weight and Life MD, Hamilton, NJ, United States
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12
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Particulate Matter-Induced Acute Coronary Syndrome: MicroRNAs as Microregulators for Inflammatory Factors. Mediators Inflamm 2021; 2021:6609143. [PMID: 34931116 PMCID: PMC8684514 DOI: 10.1155/2021/6609143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 11/18/2021] [Indexed: 12/03/2022] Open
Abstract
The most prevalent cause of mortality and morbidity worldwide is acute coronary syndrome (ACS) and its consequences. Exposure to particulate matter (PM) from air pollution has been shown to impair both. Various plausible pathogenic mechanisms have been identified, including microRNAs (miRNAs), an epigenetic regulator for gene expression. Endogenous miRNAs, average 22-nucleotide RNAs (ribonucleic acid), regulate gene expression through mRNA cleavage or translation repression and can influence proinflammatory gene expression posttranscriptionally. However, little is known about miRNA responses to fine PM (PM2.5, PM10, ultrafine particles, black carbon, and polycyclic aromatic hydrocarbon) from air pollution and their potential contribution to cardiovascular consequences, including systemic inflammation regulation. For the past decades, microRNAs (miRNAs) have emerged as novel, prospective diagnostic and prognostic biomarkers in various illnesses, including ACS. We wanted to outline some of the most important studies in the field and address the possible utility of miRNAs in regulating particulate matter-induced ACS (PMIA) on inflammatory factors in this review.
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Abstract
Alcoholic hepatitis (AH) is a clinical syndrome of jaundice, abdominal pain, and anorexia due to prolonged heavy alcohol intake, and is associated with alterations in gene expression, cytokines, immune response, and the gut microbiome. Currently, we have limited biomarkers to diagnose and prognosticate in AH, but there are many novel noninvasive biomarkers under development. We evaluate the currently used algorithms to risk-stratify in AH (such as the Maddrey modified discriminant function), and discuss novel biomarkers in development, such as breath biomarkers, microRNAs, cytokeratin-18 fragments, and the AshTest. We also review the characteristics of an ideal biomarker in AH.
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Affiliation(s)
- Stephanie M Rutledge
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, Annenberg Building Room 5-12, New York, NY 10029, USA.
| | - Gene Y Im
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, Recanati/Miller Transplantation Institute, 5 East 98th Street, New York, NY 10029, USA
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14
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Yang Y, Sangwung P, Kondo R, Jung Y, McConnell MJ, Jeong J, Utsumi T, Sessa WC, Iwakiri Y. Alcohol-induced Hsp90 acetylation is a novel driver of liver sinusoidal endothelial dysfunction and alcohol-related liver disease. J Hepatol 2021; 75:377-386. [PMID: 33675874 PMCID: PMC8292196 DOI: 10.1016/j.jhep.2021.02.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 02/20/2021] [Accepted: 02/24/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Liver sinusoidal endothelial cell (LSEC) dysfunction has been reported in alcohol-related liver disease, yet it is not known whether LSECs metabolize alcohol. Thus, we investigated this, as well as the mechanisms of alcohol-induced LSEC dysfunction and a potential therapeutic approach for alcohol-induced liver injury. METHODS Primary human, rat and mouse LSECs were used. Histone deacetylase 6 (HDAC6) was overexpressed specifically in liver ECs via adeno-associated virus (AAV)-mediated gene delivery to decrease heat shock protein 90 (Hsp90) acetylation in ethanol-fed mice. RESULTS LSECs expressed CYP2E1 and alcohol dehydrogenase 1 (ADH1) and metabolized alcohol. Ethanol induced CYP2E1 in LSECs, but not ADH1. Alcohol metabolism by CYP2E1 increased Hsp90 acetylation and decreased its interaction with endothelial nitric oxide synthase (eNOS) leading to a decrease in nitric oxide (NO) production. A non-acetylation mutant of Hsp90 increased its interaction with eNOS and NO production, whereas a hyperacetylation mutant decreased NO production. These results indicate that Hsp90 acetylation is responsible for decreases in its interaction with eNOS and eNOS-derived NO production. AAV8-driven HDAC6 overexpression specifically in liver ECs deacetylated Hsp90, restored Hsp90's interaction with eNOS and ameliorated alcohol-induced liver injury in mice. CONCLUSION Restoring LSEC function is important for ameliorating alcohol-induced liver injury. To this end, blocking acetylation of Hsp90 specifically in LSECs via AAV-mediated gene delivery has the potential to be a new therapeutic strategy. LAY SUMMARY Alcohol metabolism in liver sinusoidal endothelial cells (LSECs) and the mechanism of alcohol-induced LSEC dysfunction are largely unknown. Herein, we demonstrate that LSECs can metabolize alcohol. We also uncover a mechanism by which alcohol induces LSEC dysfunction and liver injury, and we identify a potential therapeutic strategy to prevent this.
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Affiliation(s)
- Yilin Yang
- Department of Internal Medicine, Section of Digestive Diseases, Yale School of Medicine, New Haven, CT, USA
| | - Panjamaporn Sangwung
- Department of Internal Medicine, Section of Digestive Diseases, Yale School of Medicine, New Haven, CT, USA
| | - Reiichiro Kondo
- Department of Internal Medicine, Section of Digestive Diseases, Yale School of Medicine, New Haven, CT, USA,Department of Pathology, Kurume University School of Medicine, Kurume, Japan
| | - Yirang Jung
- Department of Internal Medicine, Section of Digestive Diseases, Yale School of Medicine, New Haven, CT, USA
| | - Matthew J. McConnell
- Department of Internal Medicine, Section of Digestive Diseases, Yale School of Medicine, New Haven, CT, USA
| | - Jain Jeong
- Department of Internal Medicine, Section of Digestive Diseases, Yale School of Medicine, New Haven, CT, USA
| | - Teruo Utsumi
- Department of Internal Medicine, Section of Digestive Diseases, Yale School of Medicine, New Haven, CT, USA
| | - William C. Sessa
- Department of Pharmacology, Yale School of Medicine, New Haven, CT, USA
| | - Yasuko Iwakiri
- Department of Internal Medicine, Section of Digestive Diseases, Yale School of Medicine, New Haven, CT, USA.
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15
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Yeligar SM, Mehta AJ, Harris FL, Brown LAS, Hart CM. Pioglitazone Reverses Alcohol-Induced Alveolar Macrophage Phagocytic Dysfunction. THE JOURNAL OF IMMUNOLOGY 2021; 207:483-492. [PMID: 34193599 DOI: 10.4049/jimmunol.2000565] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 05/09/2021] [Indexed: 01/02/2023]
Abstract
Alcohol use disorders (AUD) increase susceptibility to respiratory infections by 2- to 4-fold in part because of impaired alveolar macrophage (AM) immune function. Alcohol causes AM oxidative stress, diminishing AM phagocytic capacity and clearance of microbes from the alveolar space. Alcohol increases AM NADPH oxidases (Noxes), primary sources of AM oxidative stress, and reduces peroxisome proliferator-activated receptor γ (PPARγ) expression, a critical regulator of AM immune function. To investigate the underlying mechanisms of these alcohol-induced AM derangements, we hypothesized that alcohol stimulates CCAAT/enhancer-binding protein β (C/EBPβ) to suppress Nox-related microRNAs (miRs), thereby enhancing AM Nox expression, oxidative stress, and phagocytic dysfunction. Furthermore, we postulated that pharmacologic PPARγ activation with pioglitazone would inhibit C/EBPβ and attenuate alcohol-induced AM dysfunction. AM isolated from human AUD subjects or otherwise healthy control subjects were examined. Compared with control AM, alcohol activated AM C/EBPβ, decreased Nox1-related miR-1264 and Nox2-related miR-107, and increased Nox1, Nox2, and Nox4 expression and activity. These alcohol-induced AM derangements were abrogated by inhibition of C/EBPβ, overexpression of miR-1264 or miR-107, or pioglitazone treatment. These findings define novel molecular mechanisms of alcohol-induced AM dysfunction mediated by C/EBPβ and Nox-related miRs that are amenable to therapeutic targeting with PPARγ ligands. These results demonstrate that PPARγ ligands provide a novel and rapidly translatable strategy to mitigate susceptibility to respiratory infections and related morbidity in individuals with AUD.
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Affiliation(s)
- Samantha M Yeligar
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University, Atlanta, GA; .,Atlanta Veterans Affairs Health Care System, Decatur, GA; and
| | - Ashish J Mehta
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University, Atlanta, GA.,Atlanta Veterans Affairs Health Care System, Decatur, GA; and
| | - Frank L Harris
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, Emory University and Children's Healthcare of Atlanta Center for Developmental Lung Biology, Atlanta, GA
| | - Lou Ann S Brown
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, Emory University and Children's Healthcare of Atlanta Center for Developmental Lung Biology, Atlanta, GA
| | - C Michael Hart
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University, Atlanta, GA.,Atlanta Veterans Affairs Health Care System, Decatur, GA; and
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16
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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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17
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Van Guilder GP, Preston CC, Munce TA, Faustino RS. Impacts of circulating microRNAs in exercise-induced vascular remodeling. Am J Physiol Heart Circ Physiol 2021; 320:H2401-H2415. [PMID: 33989080 DOI: 10.1152/ajpheart.00894.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Cardiovascular adaptation underlies all athletic training modalities, with a variety of factors contributing to overall response during exercise-induced stimulation. In this regard the role of circulating biomarkers is a well-established and invaluable tool for monitoring cardiovascular function. Specifically, novel biomarkers such as circulating cell free DNA and RNA are now becoming attractive tools for monitoring cardiovascular function with the advent of next generation technologies that can provide unprecedented precision and resolution of these molecular signatures, paving the way for novel diagnostic and prognostic avenues to better understand physiological remodeling that occurs in trained versus untrained states. In particular, microRNAs are a species of regulatory RNAs with pleiotropic effects on multiple pathways in tissue-specific manners. Furthermore, the identification of cell free microRNAs within peripheral circulation represents a distal signaling mechanism that is just beginning to be explored via a diversity of molecular and bioinformatic approaches. This article provides an overview of the emerging field of sports/performance genomics with a focus on the role of microRNAs as novel functional diagnostic and prognostic tools, and discusses present knowledge in the context of athletic vascular remodeling. This review concludes with current advantages and limitations, touching upon future directions and implications for applying contemporary systems biology knowledge of exercise-induced physiology to better understand how disruption can lead to pathology.
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Affiliation(s)
- Gary P Van Guilder
- Vascular Protection Research Laboratory, Exercise & Sport Science Department, Western Colorado University, Gunnison, Colorado
| | - Claudia C Preston
- Genetics and Genomics Group, Sanford Research, Sioux Falls, South Dakota
| | - Thayne A Munce
- Environmental Influences on Health & Disease Group, Sanford Research, Sioux Falls, South Dakota.,Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls, South Dakota
| | - Randolph S Faustino
- Genetics and Genomics Group, Sanford Research, Sioux Falls, South Dakota.,Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls, South Dakota
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18
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Liu SY, Tsai IT, Hsu YC. Alcohol-Related Liver Disease: Basic Mechanisms and Clinical Perspectives. Int J Mol Sci 2021; 22:5170. [PMID: 34068269 PMCID: PMC8153142 DOI: 10.3390/ijms22105170] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/07/2021] [Accepted: 05/12/2021] [Indexed: 12/12/2022] Open
Abstract
Alcohol-related liver disease (ALD) refers to the liver damage occurring due to excessive alcohol consumption and involves a broad spectrum of diseases that includes liver steatosis, steatohepatitis, hepatitis, cirrhosis, and hepatocellular carcinoma (HCC). The progression of ALD is mainly associated with the amount and duration of alcohol usage; however, it is also influenced by genetic, epigenetic, and environmental factors. The definite diagnosis of ALD is based on a liver biopsy, although several non-invasive diagnostic tools and serum biomarkers have emerging roles in the early detection of ALD. While alcohol abstinence and nutritional support remain the cornerstone of ALD treatment, growing evidence has revealed that the therapeutic agents that target oxidative stress or gut-liver axis, inflammatory response inhibition, and liver regeneration enhancement also play a role in ALD management. Furthermore, microRNAs modulation and mesenchymal stem cell-based therapy have emerging potential as ALD therapeutic options. This review summarizes the updated understanding of the pathophysiology, diagnosis, and novel therapeutic approaches for ALD.
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Affiliation(s)
- Szu-Yi Liu
- Department of Emergency Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; (S.-Y.L.); (I.-T.T.)
| | - I-Ting Tsai
- Department of Emergency Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; (S.-Y.L.); (I.-T.T.)
- School of Medicine for International Student, I-Shou University, Kaohsiung 82445, Taiwan
| | - Yin-Chou Hsu
- Department of Emergency Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; (S.-Y.L.); (I.-T.T.)
- School of Medicine for International Student, I-Shou University, Kaohsiung 82445, Taiwan
- School of Chinese Medicine for Post Baccalaureate, I-Shou University, Kaohsiung 82445, Taiwan
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19
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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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20
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Morishita A, Oura K, Tadokoro T, Fujita K, Tani J, Masaki T. MicroRNAs in the Pathogenesis of Hepatocellular Carcinoma: A Review. Cancers (Basel) 2021; 13:cancers13030514. [PMID: 33572780 PMCID: PMC7866004 DOI: 10.3390/cancers13030514] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Hepatocellular carcinoma (HCC) is one of the most frequently occurring cancers, and the prognosis for late-stage HCC remains poor. A better understanding of the pathogenesis of HCC is expected to improve outcomes. MicroRNAs (miRNAs) are small, noncoding, single-stranded RNAs that regulate the expression of various target genes, including those in cancer-associated genomic regions or fragile sites in various human cancers. We summarize the central roles of miRNAs in the pathogenesis of HCC and discuss their potential utility as valuable biomarkers and new therapeutic agents for HCC. Abstract Hepatocellular carcinoma (HCC) is the seventh most frequent cancer and the fourth leading cause of cancer mortality worldwide. Despite substantial advances in therapeutic strategies, the prognosis of late-stage HCC remains dismal because of the high recurrence rate. A better understanding of the etiology of HCC is therefore necessary to improve outcomes. MicroRNAs (miRNAs) are small, endogenous, noncoding, single-stranded RNAs that modulate the expression of their target genes at the posttranscriptional and translational levels. Aberrant expression of miRNAs has frequently been detected in cancer-associated genomic regions or fragile sites in various human cancers and has been observed in both HCC cells and tissues. The precise patterns of aberrant miRNA expression differ depending on disease etiology, including various causes of hepatocarcinogenesis, such as viral hepatitis, alcoholic liver disease, or nonalcoholic steatohepatitis. However, little is known about the underlying mechanisms and the association of miRNAs with the pathogenesis of HCC of various etiologies. In the present review, we summarize the key mechanisms of miRNAs in the pathogenesis of HCC and emphasize their potential utility as valuable diagnostic and prognostic biomarkers, as well as innovative therapeutic targets, in HCC diagnosis and treatment.
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21
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AntagomiR-199a Enhances the Liver Protective Effect of Hypoxia-Preconditioned BM-MSCs in a Rat Model of Reduced-Size Liver Transplantation. Transplantation 2020; 104:61-71. [PMID: 31449185 DOI: 10.1097/tp.0000000000002928] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Reduced-size liver transplantation (LT) was invented to overcome the shortage of donor livers; however, it has proven to be more susceptible to ischemia-reperfusion injury. Bone marrow-derived mesenchymal stem cell infusion has been shown to be protective following LT. Optimization of MSC infusion has been performed, among which hypoxia preconditioning and miRNA modulation have shown promise. MiR-199a inhibition was reported to induce angioneogenesis; however, whether mir-199a inhibition enhances the protective effect of Bone marrow-derived mesenchymal stem cells in LT remains unknown. In this study, we combined antagomiR-199a with hypoxia-preconditioned MSC (H-MSC) infusion to discuss their effect and mechanism in a rat model of reduced-size LT. METHODS A reduced-size LT model was constructed and H-MSCs were intraportally injected during operation. AgomiR-199a and antagomir-199a were injected through the caudal vein once a day after LT. The level of apoptosis and proinflammatory cytokines were measured. An anti-vascular endothelial growth factor (VEGF) antibody was injected to further explore the underlying mechanism. RESULTS AntagomiR-199a plus H-MSC not only significantly decreased ALT and AST 72 h after LT but also ameliorated the level of apoptosis and inhibited inflammatory reactions. On the contrary, agomir-199a reduced the protective effect of the H-MSC infusion. In terms of mechanism, the liver protective effect of miR-199a inhibition was abolished by treatment with a VEGF-neutralizing antibody. CONCLUSIONS AntagomiR-199a enhanced the protective effect of H-MSCs infusion via activation of the hypoxia induction factor 1α/VEGF axis.
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22
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Chen J, Argemi J, Odena G, Xu MJ, Cai Y, Massey V, Parrish A, Vadigepalli R, Altamirano J, Cabezas J, Gines P, Caballeria J, Snider N, Sancho-Bru P, Akira S, Rusyn I, Gao B, Bataller R. Hepatic lipocalin 2 promotes liver fibrosis and portal hypertension. Sci Rep 2020; 10:15558. [PMID: 32968110 PMCID: PMC7512007 DOI: 10.1038/s41598-020-72172-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 08/11/2020] [Indexed: 12/13/2022] Open
Abstract
Advanced fibrosis and portal hypertension influence short-term mortality. Lipocalin 2 (LCN2) regulates infection response and increases in liver injury. We explored the role of intrahepatic LCN2 in human alcoholic hepatitis (AH) with advanced fibrosis and portal hypertension and in experimental mouse fibrosis. We found hepatic LCN2 expression and serum LCN2 level markedly increased and correlated with disease severity and portal hypertension in patients with AH. In control human livers, LCN2 expressed exclusively in mononuclear cells, while its expression was markedly induced in AH livers, not only in mononuclear cells but also notably in hepatocytes. Lcn2-/- mice were protected from liver fibrosis caused by either ethanol or CCl4 exposure. Microarray analysis revealed downregulation of matrisome, cell cycle and immune related gene sets in Lcn2-/- mice exposed to CCl4, along with decrease in Timp1 and Edn1 expression. Hepatic expression of COL1A1, TIMP1 and key EDN1 system components were elevated in AH patients and correlated with hepatic LCN2 expression. In vitro, recombinant LCN2 induced COL1A1 expression. Overexpression of LCN2 increased HIF1A that in turn mediated EDN1 upregulation. LCN2 contributes to liver fibrosis and portal hypertension in AH and could represent a new therapeutic target.
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Affiliation(s)
- Jiegen Chen
- Departments of Medicine and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Josepmaria Argemi
- Division of Gastroenterology, Hepatology and Nutrition, Pittsburgh Liver Research Center, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA
| | - Gemma Odena
- Departments of Medicine and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Ming-Jiang Xu
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism (NIAAA), National Institutes of Health, Bethesda, DM, 20892, USA
| | - Yan Cai
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism (NIAAA), National Institutes of Health, Bethesda, DM, 20892, USA
| | - Veronica Massey
- Departments of Medicine and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Austin Parrish
- Department of Pathology, Anatomy and Cell Biology, Daniel Baugh Institute for Functional Genomics and Computational Biology, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Rajanikanth Vadigepalli
- Department of Pathology, Anatomy and Cell Biology, Daniel Baugh Institute for Functional Genomics and Computational Biology, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Jose Altamirano
- Hepatology-Internal Medicine Department, Hospital Quironsalud Barcelona, Barcelona, Spain
| | - Joaquin Cabezas
- Gastroenterology and Hepatology Department, Research Institute Valdecilla (IDIVAL), University Hospital Marques de Valdecilla, Santander, Spain
| | - Pere Gines
- Hospital Clinic, Institut D'Investigacions Biomediques August Pi I Sunyer (IDIBAPS), CIBER de Enfermedades Hepáticas Y Digestivas (CIBERehd), Barcelona, Catalonia, Spain
| | - Juan Caballeria
- Hospital Clinic, Institut D'Investigacions Biomediques August Pi I Sunyer (IDIBAPS), CIBER de Enfermedades Hepáticas Y Digestivas (CIBERehd), Barcelona, Catalonia, Spain
| | - Natasha Snider
- Department of Cell Biology and Physiology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Pau Sancho-Bru
- Hospital Clinic, Institut D'Investigacions Biomediques August Pi I Sunyer (IDIBAPS), CIBER de Enfermedades Hepáticas Y Digestivas (CIBERehd), Barcelona, Catalonia, Spain
| | - Shizuo Akira
- Laboratory of Host Defense, Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Ivan Rusyn
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, 77843, USA
| | - Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism (NIAAA), National Institutes of Health, Bethesda, DM, 20892, USA
| | - Ramon Bataller
- Departments of Medicine and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
- Division of Gastroenterology, Hepatology and Nutrition, Pittsburgh Liver Research Center, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA.
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Ou M, Zhao H, Ji G, Zhao X, Zhang Q. Long noncoding RNA MALAT1 contributes to pregnancy-induced hypertension development by enhancing oxidative stress and inflammation through the regulation of the miR-150-5p/ET-1 axis. FASEB J 2020; 34:6070-6085. [PMID: 32246794 DOI: 10.1096/fj.201902280r] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 01/06/2020] [Accepted: 02/02/2020] [Indexed: 12/21/2022]
Abstract
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) has been identified previously in the pathogenesis of hypertension and some gestational diseases. However, the biological functions of MALAT1 in pregnancy-induced hypertension (PIH) are still poorly understood. Herein, we aim to explore the functional relevance of MALAT1 in PIH and to explain the potential underlying mechanisms. We found that the levels of ET-1 and MALAT1 were upregulated and that of miR-150-5p were downregulated in the serum of pregnant women with PIH and the aortic endothelial cells (ECs) of reduced uterine perfusion pressure (RUPP)-induced rat models. In aortic ECs, MALAT1 could competitively bind to miR-150-5p to upregulate the expression of ET-1. The MALAT1/miR-150-5p/ET-1 axis regulated the expression of endothelin B receptor (ETBR) in aortic ECs leading to oxidative stress imbalance and increased the release of proinflammatory cytokines (IL-18 and IL-1β), which concurrently activated the NF-κB pathway to regulate the ETBR expression and to stimulate smooth muscle cell (SMC) contraction. Furthermore, silencing MALAT1 could alleviate the hypertensive symptoms of RUPP-induced rat models. Taken conjointly, the upregulation of MALAT1 can reduce the expression of ET-1 by competitively binding to miR-150-5p, which enhances the expression of ETBR via the activation of the NF-κB pathway in SMCs, thus exacerbating the hypertensive symptoms in the RUPP-induced rat models.
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Affiliation(s)
- Minghui Ou
- Department of Vascular Surgery, Qingdao Municipal Hospital, Qingdao, P.R. China
| | - Huidong Zhao
- Department of Obstetrics, Qingdao Municipal Hospital, Qingdao, P.R. China
| | - Guoxin Ji
- Department of Obstetrics, Qingdao Municipal Hospital, Qingdao, P.R. China
| | - Xin Zhao
- Department of Obstetrics, Qingdao Municipal Hospital, Qingdao, P.R. China
| | - Qian Zhang
- Department of Obstetrics, Qingdao Municipal Hospital, Qingdao, P.R. China
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Addolorato G, Abenavoli L, Dallio M, Federico A, Germani G, Gitto S, Leandro G, Loguercio C, Marra F, Stasi E. Alcohol associated liver disease 2020: A clinical practice guideline by the Italian Association for the Study of the Liver (AISF). Dig Liver Dis 2020; 52:374-391. [PMID: 32001151 DOI: 10.1016/j.dld.2019.12.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 11/06/2019] [Accepted: 12/17/2019] [Indexed: 12/11/2022]
Abstract
Alcohol use disorder which includes alcohol abuse and dependence represents one of the leading risk factors for premature mortality in Europe and it is responsible of over 200 conditions, including neuropsychiatric disorders, chronic diseases, cancers and accidents leading to permanent disability. Alcohol use disorder represents the most common cause of liver damage in the Western world, with a wide spectrum of diseases ranging from steatosis, steatohepatitis, fibrosis, cirrhosis and cancer. The present clinical practice guidelines by the Italian Association for the Study of the Liver (AISF) are focused on the current knowledge about epidemiology, pathophysiology, clinical features, diagnosis and treatment of alcohol associated liver disease, aiming to provide practical recommendations on the management of this complex pathological condition.
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Affiliation(s)
- Giovanni Addolorato
- Alcohol Use Disorder Unit, Division of Internal Medicine, Gastroenterology and Hepatology Unit, Catholic University of Rome, A. Gemelli Hospital, Rome, Italy; "Agostino Gemelli" Hospital Foundation - IRCCS, Rome, Italy.
| | - Ludovico Abenavoli
- Department of Health Sciences, University Magna Graecia, Catanzaro, Italy
| | - Marcello Dallio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Alessandro Federico
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Giacomo Germani
- Multivisceral Transplant Unit, Department of Surgery, Oncology and Gastroenterology, Padova University Hospital, Padova, Italy
| | - Stefano Gitto
- Department of Experimental and Clinical Medicine, University of Florence, Italy
| | - Gioacchino Leandro
- National Institute of Gastroenterology "S. De Bellis" Research Hospital, Castellana Grotte, Italy
| | - Carmelina Loguercio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Fabio Marra
- Department of Experimental and Clinical Medicine, University of Florence, Italy; Research Center Denothe, University of Florence, Italy
| | - Elisa Stasi
- National Institute of Gastroenterology "S. De Bellis" Research Hospital, Castellana Grotte, Italy
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25
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Abrahamovych M, Abrahamovych O, Fayura O, Tolopko S. Relation between redox homeostasis blood parameters in cirrhotic patients and endothelial dysfunction development. MINERVA GASTROENTERO 2020; 66:98-105. [PMID: 32218418 DOI: 10.23736/s1121-421x.20.02654-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Liver is one of the first organs to be exposed to reactive oxygen species (ROS). But the data about the levels of redox homeostasis parameters in the patients with liver cirrhosis (LC) are contradictory. We hypothesized that the levels of malondialdehyde and catalase should change in accordance with the LC severity causing the endothelial dysfunction. METHODS In a randomized way with the preliminary stratification by the presence of LC 81 patients and 20 healthy volunteers were examined. To determine the contents of catalase, malondialdehyde, cyclic guanosine monophosphate, endothelin-1, renin, aldosterone, natriuretic peptide, the routine standardized methods were used. RESULTS Patients with LC revealed the statistically significant increase of malondialdehyde and decrease of catalase levels in parallel with the increase of cyclic guanosine monophosphate, endothelin-1, renin, aldosterone, natriuretic peptide contents and disease course worsening according to the Child-Pugh criteria. It testifies the huge oxidative stress impact on the organism. Initially, at the stage of LC compensation, it slightly stimulates the activation of antioxidant system, followed by its gradual suppression at the stages of sub- and decompensation. Disorders of redox homeostasis lead to the endothelial dysfunction that becomes the background of extrahepatic comorbid disorders. CONCLUSIONS Cirrhotic patients have significant abnormalities in the redox homeostasis, which become the background of the endothelial dysfunction - common trigger mechanism for the syntrophic comorbid diseases and early pathophysiologic symptom of the unfavorable prognosis for such patients.
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Affiliation(s)
- Maryana Abrahamovych
- Department of Family Medicine, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
| | - Orest Abrahamovych
- Department of Internal Medicine N. 1, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
| | - Oksana Fayura
- Department of Internal Medicine N. 1, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine -
| | - Solomiya Tolopko
- Department of Internal Medicine N. 1, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
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26
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Chen J, Xu Q, Zhang Y, Zhang H. RNA Profiling Analysis of the Serum Exosomes Derived from Patients with Chronic Hepatitis and Acute-on-chronic Liver Failure Caused By HBV. Sci Rep 2020; 10:1528. [PMID: 32001731 PMCID: PMC6992791 DOI: 10.1038/s41598-020-58233-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 01/13/2020] [Indexed: 11/25/2022] Open
Abstract
Hepatitis B virus (HBV) is the main causative viral agent for liver diseases in China. In liver injury, exosomes may impede the interaction with chromatin in the target cell and transmit inflammatory, apoptosis, or regeneration signals through RNAs. Therefore, we attempted to determine the potential functions of exosomal RNAs using bioinformatics technology. We performed RNA sequencing analysis in exosomes derived from clinical specimens of healthy control (HC) individuals and patients with chronic hepatitis B (CHB) and acute-on-chronic liver failure caused by HBV (HBV-ACLF). This analysis resulted in the identification of different types and proportions of RNAs in exosomes from the HC individuals and patients. Exosomes from the CHB and HBV-ACLF patients showed distinct upregulation and downregulation patterns of differentially expressed genes compared with those from the HC subjects. Gene Ontology and Kyoto Encyclopaedia of Genes and Genomes pathway analysis further confirmed different patterns of biological functions and signalling pathways in CHB and HBV-ACLF. Then we chose two upregulated RNAs both in CHB and HBV-ACLF for further qPCR validation. It confirmed the significantly different expression levels in CHB and HBV-ACLF compared with HC. Our findings indicate selective packaging of the RNA cargo into exosomes under different HBV attacks; these may represent potential targets for the diagnosis and treatment of HBV-caused liver injury.
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Affiliation(s)
- Jiajia Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, 310003, China.
| | - Qingsheng Xu
- Department of Neurosurgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Yan Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, 310003, China
| | - Huafen Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, 310003, China
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27
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Klieser E, Mayr C, Kiesslich T, Wissniowski T, Fazio PD, Neureiter D, Ocker M. The Crosstalk of miRNA and Oxidative Stress in the Liver: From Physiology to Pathology and Clinical Implications. Int J Mol Sci 2019; 20:ijms20215266. [PMID: 31652839 PMCID: PMC6862076 DOI: 10.3390/ijms20215266] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/14/2019] [Accepted: 10/21/2019] [Indexed: 02/07/2023] Open
Abstract
The liver is the central metabolic organ of mammals. In humans, most diseases of the liver are primarily caused by an unhealthy lifestyle-high fat diet, drug and alcohol consumption- or due to infections and exposure to toxic substances like aflatoxin or other environmental factors. All these noxae cause changes in the metabolism of functional cells in the liver. In this literature review we focus on the changes at the miRNA level, the formation and impact of reactive oxygen species and the crosstalk between those factors. Both, miRNAs and oxidative stress are involved in the multifactorial development and progression of acute and chronic liver diseases, as well as in viral hepatitis and carcinogenesis, by influencing numerous signaling and metabolic pathways. Furthermore, expression patterns of miRNAs and antioxidants can be used for biomonitoring the course of disease and show potential to serve as possible therapeutic targets.
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Affiliation(s)
- Eckhard Klieser
- Institute of Pathology, Paracelsus Medical University/Salzburger Landeskliniken (SALK), 5020 Salzburg, Austria.
- Cancer Cluster Salzburg, 5020 Salzburg, Austria.
| | - Christian Mayr
- Department of Internal Medicine I, Paracelsus Medical University/Salzburger Landeskliniken (SALK), 5020 Salzburg, Austria.
- Institute of Physiology and Pathophysiology, Paracelsus Medical University/Salzburger Landeskliniken (SALK), 5020 Salzburg, Austria.
| | - Tobias Kiesslich
- Department of Internal Medicine I, Paracelsus Medical University/Salzburger Landeskliniken (SALK), 5020 Salzburg, Austria.
- Institute of Physiology and Pathophysiology, Paracelsus Medical University/Salzburger Landeskliniken (SALK), 5020 Salzburg, Austria.
| | - Till Wissniowski
- Department of Gastroenterology and Endocrinology, Philipps University Marburg, 35043 Marburg, Germany.
| | - Pietro Di Fazio
- Department of Visceral, Thoracic and Vascular Surgery, Philipps University Marburg, 35043 Marburg, Germany.
| | - Daniel Neureiter
- Institute of Pathology, Paracelsus Medical University/Salzburger Landeskliniken (SALK), 5020 Salzburg, Austria.
- Cancer Cluster Salzburg, 5020 Salzburg, Austria.
| | - Matthias Ocker
- Translational Medicine Oncology, Bayer AG, 13353 Berlin, Germany.
- Department of Gastroenterology CBF, Charité University Medicine Berlin, 12200 Berlin, Germany.
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28
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Li HD, Du XS, Huang HM, Chen X, Yang Y, Huang C, Meng XM, Li J. Noncoding RNAs in alcoholic liver disease. J Cell Physiol 2019; 234:14709-14720. [PMID: 30701547 DOI: 10.1002/jcp.28229] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 01/01/2019] [Accepted: 01/10/2019] [Indexed: 01/24/2023]
Abstract
Alcoholic liver disease (ALD) is a complex process with high morbitity and can cause liver dysfunction, which contains a wide spectrum of hepatic lesions, including steatohepatitis, fibrosis, cirrhosis, and eventually hepatocellular carcinoma. To date, the molecular mechanisms for ALD have not been fully explored and an effective therapy is still missing. Overwhelming evidence shows dysregulation of noncoding RNAs (ncRNAs), particularly microRNAs (miRNAs), is correlated with etiopathogenesis and progress of ALD including hepatocyte damage, disrupted lipid metabolism, aggressive inflammatory responses, oxidative stress, programmed cell death, fibrosis, and epigenetic changes induced by alcohol. For example, circulating miRNA-122 is a marker of hepatocyte damage, and miRNA-155 is a potential marker of inflammation, indicating their diagnosis therapeutic potential in ALD. In addition, roles for long noncoding RNAs (lncRNAs) and circular RNAs in ALD are being uncovered. Further, circulating ncRNAs and exosome-derived ncRNAs have attracted more attention lately, suggesting a role in the prevention and treatment of ALD. This review covers the roles of ncRNAs in ALD, and the potential uses as markers for diagnosis and therapeutic options.
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Affiliation(s)
- Hai-Di Li
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Xiao-Sa Du
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Hui-Min Huang
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Xin Chen
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Yang Yang
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Cheng Huang
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Xiao-Ming Meng
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Jun Li
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, China
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29
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Role of HIF-1α in Alcohol-Mediated Multiple Organ Dysfunction. Biomolecules 2018; 8:biom8040170. [PMID: 30544759 PMCID: PMC6316086 DOI: 10.3390/biom8040170] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/30/2018] [Accepted: 12/06/2018] [Indexed: 12/12/2022] Open
Abstract
Excess alcohol consumption is a global crisis contributing to over 3 million alcohol-related deaths per year worldwide and economic costs exceeding $200 billion dollars, which include productivity losses, healthcare, and other effects (e.g., property damages). Both clinical and experimental models have shown that excessive alcohol consumption results in multiple organ injury. Although alcohol metabolism occurs primarily in the liver, alcohol exposure can lead to pathophysiological conditions in multiple organs and tissues, including the brain, lungs, adipose, liver, and intestines. Understanding the mechanisms by which alcohol-mediated organ dysfunction occurs could help to identify new therapeutic approaches to mitigate the detrimental effects of alcohol misuse. Hypoxia-inducible factor (HIF)-1 is a transcription factor comprised of HIF-1α and HIF-1β subunits that play a critical role in alcohol-mediated organ dysfunction. This review provides a comprehensive analysis of recent studies examining the relationship between HIF-1α and alcohol consumption as it relates to multiple organ injury and potential therapies to mitigate alcohol’s effects.
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30
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Majali-Martinez A, Barth S, Lang U, Desoye G, Cervar-Zivkovic M. Temporal changes of the endothelin system in human cytotrophoblasts during the first trimester of pregnancy. Physiol Res 2018; 67:S247-S255. [PMID: 29947544 DOI: 10.33549/physiolres.933828] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The first trimester of pregnancy is characterized by continuous proliferation, invasion and differentiation of cytotrophoblasts. These processes are precisely controlled both, in space and time by molecules such as endothelin-1 (ET-1). ET-1 is expressed in human first trimester trophoblast and is known to stimulate cytotrophoblast proliferation through endothelin A and B receptor subtypes (ET(A) and ET(B)), and cytotrophoblast invasion through ET(B). However, temporal changes of the ET system during the first trimester of pregnancy have not been previously studied. This study tested the hypothesis that ET-1 release, ET(A) and ET(B) expression are increased towards the end of the first trimester of pregnancy (weeks 10-12 vs. weeks 6-9), resulting in increased cytotrophoblast proliferation and invasion. Tissue samples were obtained from 17 surgical pregnancy interruptions (week 6-9: n=9; week 10-12: n=8). After cytotrophoblast isolation, the invasive and proliferative phenotypes were immune-separated by an alpha(6)-integrin antibody. Both proliferative and invasive cytotrophoblasts were cultured separately on plastic or Matrigel for 24 h. ET-1 release into the culture medium of both cytotrophoblast subtypes was measured by radioimmunoassay. ET(A) and ET(B) mRNA expression was measured by RT-PCR, and the ET-1 effect on cytotrophoblast proliferation and invasion was determined using proliferation and invasion assays, respectively. ET-1 release increased from early to late first trimester of pregnancy in both proliferative (1.8-4.5 fold) and invasive cytotrophoblasts (9.3-28 fold), especially when cultured on Matrigel. This was paralleled by less ET(B) mRNA on invasive cytotrophoblasts independent of the time period in first trimester, whereas ET(A) expression was similar on proliferative an invasive cytotrophoblasts. Proliferation and invasion of cytotrophoblasts under control conditions decreased from early to late first trimester. ET-1 stimulated both processes at both periods with the most pronounced effect (7-fold) on invasion in late first trimester. The ET-1/ET-receptor system changes between weeks 6-9 and 10-12 in pregnancy. Our data suggest an autocrine and endocrine ET-1 effect, which is stronger in late than in early first trimester of pregnancy paralleled by different stimulatory effects on trophoblast invasion and proliferation. In general, this suggests time as an additional effector of the critical processes governing placental development in the first trimester of human pregnancy.
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Affiliation(s)
- A Majali-Martinez
- Department of Obstetrics and Gynecology, Medical University of Graz, Graz, Austria.
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31
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Lin XX, Lian GH, Peng SF, Zhao Q, Xu Y, Ou-Yang DS, Zhang W, Chen Y. Reversing Epigenetic Alterations Caused by Alcohol: A Promising Therapeutic Direction for Alcoholic Liver Disease. Alcohol Clin Exp Res 2018; 42:1863-1873. [PMID: 30080257 DOI: 10.1111/acer.13863] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 07/28/2018] [Indexed: 12/19/2022]
Abstract
Alcoholic liver disease (ALD), a liver function disorder caused by excessive alcohol intake, is a serious threat to global public health and social development. Toxic metabolites and reactive oxygen species produced during the metabolism of alcohol can alter the epigenetic state including DNA methylation, histone modifications, and expression of microRNAs. Epigenetic alterations can conversely involve various signaling pathways, which could contribute to the initiation and progression of ALD. To elucidate the relationship between epigenetic alterations and alcohol damage not only reinforces our understanding on pathogenesis of ALD, but also provides novel targets for clinical diagnosis, treatment, and drug research of ALD. In this review, we have summarized the research progress of epigenetic alterations and related mechanisms caused by alcohol in the pathogenesis of ALD. Considering the invertibility of epigenetic alterations, treatment of ALD through epigenetic modification with common less harmful compounds is also related.
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Affiliation(s)
- Xiu-Xian Lin
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | - Guang-Hui Lian
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shi-Fang Peng
- Department of Hepatology and Infectious Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qing Zhao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | - Ying Xu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | - Dong-Sheng Ou-Yang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | - Wei Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | - Yao Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
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32
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Torres JL, Novo-Veleiro I, Manzanedo L, Alvela-Suárez L, Macías R, Laso FJ, Marcos M. Role of microRNAs in alcohol-induced liver disorders and non-alcoholic fatty liver disease. World J Gastroenterol 2018; 24:4104-4118. [PMID: 30271077 PMCID: PMC6158486 DOI: 10.3748/wjg.v24.i36.4104] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/25/2018] [Accepted: 06/27/2018] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that regulate multiple physiological and pathological functions through the modulation of gene expression at the post-transcriptional level. Accumulating evidence has established a role for miRNAs in the development and pathogenesis of liver disease. Specifically, a large number of studies have assessed the role of miRNAs in alcoholic liver disease (ALD) and non-alcoholic fatty liver disease (NAFLD), two diseases that share common underlying mechanisms and pathological characteristics. The purpose of the current review is to summarize and update the body of literature investigating the role of miRNAs in liver disease. In addition, the potential use of miRNAs as biomarkers and/or therapeutic targets is discussed. Among all miRNAs analyzed, miR-34a, miR-122 and miR-155 are most involved in the pathogenesis of NAFLD. Of note, these three miRNAs have also been implicated in ALD, reinforcing a common disease mechanism between these two entities and the pleiotropic effects of specific miRNAs. Currently, no single miRNA or panel of miRNAs has been identified for the detection of, or staging of ALD or NAFLD. While promising results have been shown in murine models, no therapeutic based-miRNA agents have been developed for use in humans with liver disease.
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Affiliation(s)
- Jorge-Luis Torres
- Department of Internal Medicine, University Hospital of Salamanca, Institute of Biomedical Research of Salamanca-IBSAL, Salamanca 37007, Spain
- Spanish Working Group on Alcohol and Alcoholism, Spanish Society of Internal Medicine, Madrid 28016, Spain
| | - Ignacio Novo-Veleiro
- Department of Internal Medicine, University Hospital of Santiago de Compostela, A Coruña 15706, Spain
- Spanish Working Group on Alcohol and Alcoholism, Spanish Society of Internal Medicine, Madrid 28016, Spain
| | - Laura Manzanedo
- Department of Internal Medicine, University Hospital of Salamanca, Institute of Biomedical Research of Salamanca-IBSAL, Salamanca 37007, Spain
| | - Lucía Alvela-Suárez
- Department of Internal Medicine, HM Rosaleda Hospital, Santiago de Compostela, A Coruña 15701, Spain
| | - Ronald Macías
- Department of Internal Medicine, University Hospital of Salamanca, Institute of Biomedical Research of Salamanca-IBSAL, Salamanca 37007, Spain
| | - Francisco-Javier Laso
- Department of Internal Medicine, University Hospital of Salamanca, Institute of Biomedical Research of Salamanca-IBSAL, Salamanca 37007, Spain
- Department of Medicine, Faculty of Medicine, University of Salamanca, Salamanca 37007, Spain
- Spanish Working Group on Alcohol and Alcoholism, Spanish Society of Internal Medicine, Madrid 28016, Spain
| | - Miguel Marcos
- Department of Internal Medicine, University Hospital of Salamanca, Institute of Biomedical Research of Salamanca-IBSAL, Salamanca 37007, Spain
- Department of Medicine, Faculty of Medicine, University of Salamanca, Salamanca 37007, Spain
- Spanish Working Group on Alcohol and Alcoholism, Spanish Society of Internal Medicine, Madrid 28016, Spain
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33
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Chen J, Gong X, Huang L, Chen P, Wang T, Zhou W, Luo K, Wang J. MiR-199a-5p regulates sirtuin1 and PI3K in the rat hippocampus with intrauterine growth restriction. Sci Rep 2018; 8:13813. [PMID: 30217997 PMCID: PMC6138635 DOI: 10.1038/s41598-018-32189-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 07/10/2018] [Indexed: 12/16/2022] Open
Abstract
In humans, malnutrition during pregnancy results in intrauterine growth restriction (IUGR) and an increased risk of neurological morbidities; altered miRNA characteristics have been suggested to contribute to IUGR neurological pathogenesis. A miRNA microarray was used to identify differentially expressed miRNA molecules in the hippocampi of rats with IUGR. Five of the molecules in question were selectively validated using real-time PCR in rats with IUGR. We then investigated the role of miR-199a-5p in hippocampal pathology. Bioinformatics analysis results suggested that TNF-α, caspase-3 and SIRT1 were potential targets of miR-199a-5p. Changes in PI3K, SIRT1 and caspase-3 protein expressions levels in the hippocampus were confirmed by Western blot analysis (all P < 0.05). Studies using the pheochromocytoma cell line PC12 cells and primary neurons demonstrated that miR-199a-5p modulated PI3K, caspase-3 and SIRT1 expression. Additionally, there was an inverse correlation between miR-199a-5p and caspase-3 expression, though dual-luciferase reporter assays showed that caspase-3 is not a target of miR-199a-5p. We conclude that IUGR affects hippocampal miRNAs characteristics. Our results also indicated that aberrantly high expression levels of miR-199a-5p may play an important role in the pathogenesis of IUGR by regulating SIRT1 and PI3K.
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Affiliation(s)
- Juncao Chen
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China
- Division of Neonatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Rd, Changsha, Hunan, 410011, China
| | - Xiaoyun Gong
- Division of Neonatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Rd, Changsha, Hunan, 410011, China
| | - Li Huang
- Division of Neonatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Rd, Changsha, Hunan, 410011, China
| | - Pingyang Chen
- Division of Neonatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Rd, Changsha, Hunan, 410011, China.
| | - Tao Wang
- Division of Neonatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Rd, Changsha, Hunan, 410011, China
| | - Wei Zhou
- Division of Neonatology, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, China
| | - Kaiju Luo
- Division of Neonatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Rd, Changsha, Hunan, 410011, China
| | - Jing Wang
- Division of Neonatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Rd, Changsha, Hunan, 410011, China
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Blaya D, Aguilar-Bravo B, Hao F, Casacuberta-Serra S, Coll M, Perea L, Vallverdú J, Graupera I, Pose E, Llovet L, Barquinero J, Cubero FJ, Caballería J, Ginès P, Sancho-Bru P. Expression of microRNA-155 in inflammatory cells modulates liver injury. Hepatology 2018; 68:691-706. [PMID: 29420849 PMCID: PMC6082738 DOI: 10.1002/hep.29833] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 02/02/2018] [Accepted: 02/02/2018] [Indexed: 12/17/2022]
Abstract
UNLABELLED MicroRNA 155 (miR-155) is involved in immune and inflammatory diseases and is associated with liver fibrosis and steatohepatitis. However, the mechanisms involved in miR-155 regulation of liver injury are largely unknown. The role of miR-155 in acute liver injury was assessed in wild-type (WT), miR-155-/- , and miR-155-/- mice transplanted with WT bone marrow. Additionally, miR-155 expression was evaluated in liver tissue and peripheral blood mononuclear cells of patients with autoimmune hepatitis. Concanavalin A, but not acetaminophen, treatment increased the expression of miR-155 in liver tissue of WT mice. Concanavalin A induced increases in cell death, liver aminotransferases, and expression of proinflammatory cytokines (chemokine [C-X-C motif] ligands 1, 5, 9, 10, and 11; chemokine [C-C motif] ligands 2 and 20; and intercellular cell adhesion molecule 1) in miR-155-/- compared to WT mice. Importantly, these animals showed a significant decrease in cluster of differentiation 4-positive/chemokine (C-X-C motif) receptor 3-positive and forkhead box p3-positive cell recruitment but no changes in other inflammatory cell populations. Mechanistically, miR-155-deficient regulatory T cells showed increased SH2 domain-containing inositol 5-phosphatase 1 expression, a known target of miR-155. Inhibition of SH2 domain-containing inositol 5-phosphatase 1 in miR-155-/- mice restored forkhead box p3 recruitment and reduced liver cytokine expression. Transplantation of bone marrow from WT animals into miR-155-/- mice partially reversed the effect of concanavalin A on miR-155-/- mice as assessed by proinflammatory cytokines and cell death protein expression. Patients with autoimmune hepatitis showed a marked increase in miR-155 expression in the liver but reduced expression of miR-155 in peripheral blood mononuclear cells. CONCLUSION miR-155 expression is altered in both liver tissue and circulating inflammatory cells during liver injury, thus regulating inflammatory cell recruitment and liver damage; these results suggest that maintaining miR-155 expression in inflammatory cells might be a potential strategy to modulate liver injury. (Hepatology 2018).
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Affiliation(s)
- Delia Blaya
- Laboratory of Liver Cell Plasticity and Tissue Repair, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Beatriz Aguilar-Bravo
- Laboratory of Liver Cell Plasticity and Tissue Repair, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Fengjie Hao
- Department of Immunology, Complutense University School of Medicine, Madrid, Spain,12 de Octubre Health Research Institute (imas12), Madrid, Spain
| | | | - Mar Coll
- Laboratory of Liver Cell Plasticity and Tissue Repair, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Luis Perea
- Laboratory of Liver Cell Plasticity and Tissue Repair, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Júlia Vallverdú
- Laboratory of Liver Cell Plasticity and Tissue Repair, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Isabel Graupera
- Laboratory of Liver Cell Plasticity and Tissue Repair, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain,Liver Unit, Hospital Clínic, Barcelona, Spain
| | - Elisa Pose
- Laboratory of Liver Cell Plasticity and Tissue Repair, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain,Liver Unit, Hospital Clínic, Barcelona, Spain
| | - Laura Llovet
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain,Liver Unit, Hospital Clínic, Barcelona, Spain
| | - Jordi Barquinero
- Gene and Cell Therapy Laboratory, Vall d’Hebron Institut de Recerca (VHIR), Barcelona, Spain
| | - Francisco Javier Cubero
- Department of Immunology, Complutense University School of Medicine, Madrid, Spain,12 de Octubre Health Research Institute (imas12), Madrid, Spain
| | - Juan Caballería
- Laboratory of Liver Cell Plasticity and Tissue Repair, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain,Liver Unit, Hospital Clínic, Barcelona, Spain
| | - Pere Ginès
- Laboratory of Liver Cell Plasticity and Tissue Repair, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain,Liver Unit, Hospital Clínic, Barcelona, Spain
| | - Pau Sancho-Bru
- Laboratory of Liver Cell Plasticity and Tissue Repair, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
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Induction of microRNA-199 by Nitric Oxide in Endothelial Cells Is Required for Nitrovasodilator Resistance via Targeting of Prostaglandin I2 Synthase. Circulation 2018; 138:397-411. [DOI: 10.1161/circulationaha.117.029206] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background:
Nitrates are widely used to treat coronary artery disease, but their therapeutic value is compromised by nitrate tolerance, because of the dysfunction of prostaglandin I2 synthase (PTGIS). MicroRNAs repress target gene expression and are recognized as important epigenetic regulators of endothelial function. The aim of this study was to determine whether nitrates induce nitrovasodilator resistance via microRNA-dependent repression of
PTGIS
gene expression.
Methods:
Nitrovasodilator resistance was induced by nitroglycerin (100 mg·kg
–1
·d
–1
, 3 days) infusion in
Apoe
–/–
mice. The responses of aortic arteries to nitric oxide donors were assessed in an organ chamber. The expression levels of microRNA-199 (miR-199)a/b were assayed by quantitative reverse transcription polymerase chain reaction or fluorescent in situ hybridization.
Results:
In cultured human umbilical vein endothelial cells, nitric oxide donors induced miR-199a/b endogenous expression and downregulated
PTGIS
gene expression, both of which were reversed by 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt or silence of serum response factor. Evidence from computational and luciferase reporter gene analyses indicates that the seed sequence of 976 to 982 in the 3′-untranslated region of
PTGIS
mRNA is a target of miR-199a/b. Gain functions of miR-199a/b resulting from chemical mimics or adenovirus-mediated overexpression increased
PTGIS
mRNA degradation in HEK293 cells and human umbilical vein endothelial cells. Furthermore, nitroglycerin-decreased
PTGIS
gene expression was prevented by miR-199a/b antagomirs or was mirrored by the enforced expression of miR-199a/b in human umbilical vein endothelial cells. In
Apoe
–/–
mice, nitroglycerin induced the ectopic expression of miR-199a/b in the carotid arterial endothelium, decreased
PTGIS
gene expression, and instigated nitrovasodilator resistance, all of which were abrogated by miR-199a/b antagomirs or LNA—anti–miR-199. It is important that the effects of miR-199a/b inhibitions were abolished by adenovirus-mediated
PTGIS
deficiency. Moreover, the enforced expression of miR-199a/b in vivo repressed
PTGIS
gene expression and impaired the responses of aortic arteries to nitroglycerin/sodium nitroprusside/acetylcholine/cinaciguat/riociguat, whereas the exogenous expression of the
PTGIS
gene prevented nitrovasodilator resistance in
Apoe
–/–
mice subjected to nitroglycerin infusion or miR-199a/b overexpression. Finally, indomethacin, iloprost, and SQ29548 improved vasorelaxation in nitroglycerin-infused
Apoe
–/–
mice, whereas U51605 induced nitrovasodilator resistance. In humans, the increased expressions of miR-199a/b were closely associated with nitrate tolerance.
Conclusions:
Nitric oxide–induced ectopic expression of miR-199a/b in endothelial cells is required for nitrovasodilator resistance via the repression of
PTGIS
gene expression. Clinically, miR-199a/b is a novel target for the treatment of nitrate tolerance.
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Gonçalves FZ, Lizarte Neto FS, Novais PC, Gattas D, Lourenço LG, de Carvalho CAM, Tirapelli DPC, Molina CAF, Tirapelli LF, Tucci S. Expression profile of endothelin receptors (ETA and ETB) and microRNAs-155 and -199 in the corpus cavernosum of rats submitted to chronic alcoholism and diabetes mellitus. ACTA ACUST UNITED AC 2018. [PMID: 29513879 PMCID: PMC5912101 DOI: 10.1590/1414-431x20176329] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Recent evidence shows that chronic ethanol consumption increases endothelin (ET)-1 induced sustained contraction of trabecular smooth muscle cells of the corpora cavernosa in corpus cavernosum of rats by a mechanism that involves increased expression of ETA and ETB receptors. Our goal was to evaluate the effects of alcohol and diabetes and their relationship to miRNA-155, miRNA-199 and endothelin receptors in the corpus cavernosum and blood of rats submitted to the experimental model of diabetes mellitus and chronic alcoholism. Forty-eight male Wistar rats were divided into four groups: control (C), alcoholic (A), diabetic (D), and alcoholic-diabetic (AD). Samples of the corpus cavernosum were prepared to study the protein expression of endothelin receptors by immunohistochemistry and expression of miRNAs-155 and -199 in serum and the cavernous tissue. Immunostaining for endothelin receptors was markedly higher in the A, D, and AD groups than in the C group. Moreover, a significant hypoexpression of the miRNA-199 in the corpus cavernosum tissue from the AD group was observed, compared to the C group. When analyzing the microRNA profile in blood, a significant hypoexpression of miRNA-155 in the AD group was observed compared to the C group. The miRNA-199 analysis demonstrated significant hypoexpression in D and AD groups compared to the C group. Our findings in corpus cavernosum showed downregulated miRNA-155 and miRNA-199 levels associated with upregulated protein expression and unaltered mRNA expression of ET receptors suggesting decreased ET receptor turnover, which can contribute to erectile dysfunction in diabetic rats exposed to high alcohol levels.
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Affiliation(s)
- F Z Gonçalves
- Departamento de Cirurgia e Anatomia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - F S Lizarte Neto
- Departamento de Cirurgia e Anatomia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - P C Novais
- Departamento de Ciências da Saúde, Universidade de Marília, Marília, SP, Brasil
| | - D Gattas
- Departamento de Cirurgia e Anatomia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - L G Lourenço
- Departamento de Cirurgia e Anatomia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - C A M de Carvalho
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Alagoas, Maceio, AL, Brasil
| | - D P C Tirapelli
- Departamento de Cirurgia e Anatomia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - C A F Molina
- Departamento de Cirurgia e Anatomia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - L F Tirapelli
- Departamento de Cirurgia e Anatomia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - S Tucci
- Departamento de Cirurgia e Anatomia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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Rossi M, Jahanzaib Anwar M, Usman A, Keshavarzian A, Bishehsari F. Colorectal Cancer and Alcohol Consumption-Populations to Molecules. Cancers (Basel) 2018; 10:E38. [PMID: 29385712 PMCID: PMC5836070 DOI: 10.3390/cancers10020038] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/22/2018] [Accepted: 01/24/2018] [Indexed: 12/11/2022] Open
Abstract
Colorectal cancer (CRC) is a major cause of morbidity and mortality, being the third most common cancer diagnosed in both men and women in the world. Several environmental and habitual factors have been associated with the CRC risk. Alcohol intake, a common and rising habit of modern society, is one of the major risk factors for development of CRC. Here, we will summarize the evidence linking alcohol with colon carcinogenesis and possible underlying mechanisms. Some epidemiologic studies suggest that even moderate drinking increases the CRC risk. Metabolism of alcohol involves ethanol conversion to its metabolites that could exert carcinogenic effects in the colon. Production of ethanol metabolites can be affected by the colon microbiota, another recently recognized mediating factor to colon carcinogenesis. The generation of acetaldehyde and alcohol's other metabolites leads to activation of cancer promoting cascades, such as DNA-adduct formation, oxidative stress and lipid peroxidation, epigenetic alterations, epithelial barrier dysfunction, and immune modulatory effects. Not only does alcohol induce its toxic effect through carcinogenic metabolites, but alcoholics themselves are predisposed to a poor diet, low in folate and fiber, and circadian disruption, which could further augment alcohol-induced colon carcinogenesis.
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Affiliation(s)
- Marco Rossi
- Division of Digestive Diseases, Hepatology, and Nutrition, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA.
| | - Muhammad Jahanzaib Anwar
- Division of Digestive Diseases, Hepatology, and Nutrition, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA.
| | - Ahmad Usman
- Division of Digestive Diseases, Hepatology, and Nutrition, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA.
| | - Ali Keshavarzian
- Division of Digestive Diseases, Hepatology, and Nutrition, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA.
| | - Faraz Bishehsari
- Division of Digestive Diseases, Hepatology, and Nutrition, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA.
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Fatty Liver Disease and Hepatocellular Carcinoma: The Pathologist's View. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1032:55-69. [PMID: 30362090 DOI: 10.1007/978-3-319-98788-0_4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chronic alcohol misuse and progressed nonalcoholic fatty liver disease (NAFLD) due to the metabolic syndrome and resulting to nonalcoholic steatohepatitis (NASH) are prime causes of hepatocellular carcinoma (HCC) in Western industrialized countries. The incidence of HCC in NASH-cirrhosis is lower than that of HCC occuring in HCV-related or alcoholic cirrhosis. Up to 20% of cases of alcohol-associated HCC may develop in pre-cirrhotic liver while HCC is also increasingly recognised in pre-cirrhotic NASH raising questions on appropriate surveillance measures for these patient populations. The recently described steatohepatitic subtype of HCC presents with higher frequency in NAFLD compared to alcoholic liver disease (ALD) patients. This review will mainly focus on histopathology and summarize current data on the epidemiology, pathogenesis, diagnosis and management of NAFLD- and ALD-related HCC.
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39
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Boyle M, Mann J. WITHDRAWN: Epigenetics in Chronic Liver Disease. J Hepatol 2017:S0168-8278(17)32255-9. [PMID: 28855099 DOI: 10.1016/j.jhep.2017.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 08/17/2017] [Accepted: 08/18/2017] [Indexed: 12/04/2022]
Abstract
This article has been withdrawn at the request of the editors. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Marie Boyle
- Institute of Cellular Medicine, Faculty of Medical Sciences, 4(th) Floor, William Leech Building, Newcastle University, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK
| | - Jelena Mann
- Institute of Cellular Medicine, Faculty of Medical Sciences, 4(th) Floor, William Leech Building, Newcastle University, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK.
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40
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Plumbagin Alleviates Capillarization of Hepatic Sinusoids In Vitro by Downregulating ET-1, VEGF, LN, and Type IV Collagen. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5603216. [PMID: 28770223 PMCID: PMC5523349 DOI: 10.1155/2017/5603216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 05/28/2017] [Accepted: 06/05/2017] [Indexed: 12/19/2022]
Abstract
Critical roles for liver sinusoidal endothelial cells (LSECs) in liver fibrosis have been demonstrated, while little is known regarding the underlying molecular mechanisms of drugs delivered to the LSECs. Our previous study revealed that plumbagin plays an antifibrotic role in liver fibrosis. In this study, we investigated whether plumbagin alleviates capillarization of hepatic sinusoids by downregulating endothelin-1 (ET-1), vascular endothelial growth factor (VEGF), laminin (LN), and type IV collagen on leptin-stimulated LSECs. We found that normal LSECs had mostly open fenestrae and no organized basement membrane. Leptin-stimulated LSECs showed the formation of a continuous basement membrane with few open fenestrae, which were the features of capillarization. Expression of ET-1, VEGF, LN, and type IV collagen was enhanced in leptin-stimulated LSECs. Plumbagin was used to treat leptin-stimulated LSECs. The sizes and numbers of open fenestrae were markedly decreased, and no basement membrane production was found after plumbagin administration. Plumbagin decreased the levels of ET-1, VEGF, LN, and type IV collagen in leptin-stimulated LSECs. Plumbagin promoted downregulation of ET-1, VEGF, LN, and type IV collagen mRNA. Altogether, our data reveal that plumbagin reverses capillarization of hepatic sinusoids by downregulation of ET-1, VEGF, LN, and type IV collagen.
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41
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Yang L, Chen Y, Pan W, Wang H, Li N, Tang B. Visualizing the Conversion Process of Alcohol-Induced Fatty Liver to Steatohepatitis in Vivo with a Fluorescent Nanoprobe. Anal Chem 2017; 89:6196-6201. [DOI: 10.1021/acs.analchem.7b01144] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Limin Yang
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong,
Key Laboratory of Molecular and Nano Probes, Ministry of Education,
Institute of Molecular and Nano Science, Shandong Normal University, Jinan, Shandong 250014, P. R. China
| | - Yuanyuan Chen
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong,
Key Laboratory of Molecular and Nano Probes, Ministry of Education,
Institute of Molecular and Nano Science, Shandong Normal University, Jinan, Shandong 250014, P. R. China
| | - Wei Pan
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong,
Key Laboratory of Molecular and Nano Probes, Ministry of Education,
Institute of Molecular and Nano Science, Shandong Normal University, Jinan, Shandong 250014, P. R. China
| | - Hongyu Wang
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong,
Key Laboratory of Molecular and Nano Probes, Ministry of Education,
Institute of Molecular and Nano Science, Shandong Normal University, Jinan, Shandong 250014, P. R. China
| | - Na Li
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong,
Key Laboratory of Molecular and Nano Probes, Ministry of Education,
Institute of Molecular and Nano Science, Shandong Normal University, Jinan, Shandong 250014, P. R. China
| | - Bo Tang
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong,
Key Laboratory of Molecular and Nano Probes, Ministry of Education,
Institute of Molecular and Nano Science, Shandong Normal University, Jinan, Shandong 250014, P. R. China
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Herzog R, Zendedel A, Lammerding L, Beyer C, Slowik A. Impact of 17beta-estradiol and progesterone on inflammatory and apoptotic microRNA expression after ischemia in a rat model. J Steroid Biochem Mol Biol 2017; 167:126-134. [PMID: 27884727 DOI: 10.1016/j.jsbmb.2016.11.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 11/20/2016] [Accepted: 11/21/2016] [Indexed: 12/20/2022]
Abstract
17β-estradiol (E2) and progesterone (P) are neuroprotective factors in the brain preventing neuronal death under different injury paradigms. In previous studies, we demonstrated that both steroids dampen neuronal damage, improve local energy metabolism and attenuate pro-inflammatory responses. MicroRNAs (miRNAs) are small regulators of distinct target genes on the RNA level. Their expression patterns are misbalanced in several neurological disorders. To explore the regulatory mechanisms of steroid hormones on selected miRNAs and their validated targets in ischemia, we used the transient middle cerebral artery occlusion (tMCAO) model. 12-week old male rats were subjected to 2h tMCAO and expression patterns of miR-223, miR-200c, miR-375, miR-199 and miR-214 (all -3p) were determined. Using semi-quantitative real time PCR, we examined the role of E2 or P as regulatory factors for miRNAs and theirs target genes. Besides miR-375, all mentioned miRNAs showed a steady increase with a peak at 72h post tMCAO, whereas highest levels of miR-375 were detected at 12h post tMCAO. E2 or P selectively dampened miR-223 and miR-214 but further boosted miR-375 levels. With respect to the miR-223 regulated target genes NR2B and GRIA2 which both decreased after tMCAO, E2 and P application reversed this effect. Further, steroid treatment inhibited the hypoxia-induced increase of the miR-375 target genes Bcl-2 and RAD1. These findings provide new insights into the regulatory role of neuroprotection mediated by sex steroids in the brain. Both hormones are capable of influencing the expression of miRNAs which are relevant during neuropathological processes. Thereby, E2 and P indirectly control pro-apoptotic and -inflammatory gene translation and provide a mechanism to dampen explosive tissue damage.
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Affiliation(s)
- Rebecca Herzog
- Institute of Neuroanatomy, RWTH Aachen University, 52074 Aachen, Germany
| | - Adib Zendedel
- Institute of Neuroanatomy, RWTH Aachen University, 52074 Aachen, Germany; Department of Anatomical Sciences, Faculty of Medicine, Giulan University of Medical Sciences, Rasht, Iran
| | - Leoni Lammerding
- Institute of Neuroanatomy, RWTH Aachen University, 52074 Aachen, Germany
| | - Cordian Beyer
- Institute of Neuroanatomy, RWTH Aachen University, 52074 Aachen, Germany; JARA-Brain, 52074 Aachen, Germany
| | - Alexander Slowik
- Institute of Neuroanatomy, RWTH Aachen University, 52074 Aachen, Germany.
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43
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Keßler J, Rot S, Bache M, Kappler M, Würl P, Vordermark D, Taubert H, Greither T. miR-199a-5p regulates HIF-1α and OSGIN2 and its expression is correlated to soft-tissue sarcoma patients' outcome. Oncol Lett 2016; 12:5281-5288. [PMID: 28101243 DOI: 10.3892/ol.2016.5320] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 08/10/2016] [Indexed: 12/18/2022] Open
Abstract
Soft tissue sarcomas are a heterogeneous group of malignant neoplasms of mesenchymal origin. Partly due to hypoxia, an aggressive and radioresistant phenotype frequently develops, resulting in poorer patient outcome. microRNAs (miRNAs) are tiny, non-coding regulators of gene expression and in situations of cellular stress situations may predict clinical progression and patient outcome. In the present study, hypoxia-associated miR-199a-5p expression in 96 soft tissue sarcoma samples was analysed by reverse transcription-quantitative polymerase chain reaction and associations between miR-199a-5p expression and patient clinicopathological characteristics and survival were measured. Additionally, luciferase reporter assays analyzed the post-transcriptional regulation of hypoxia-associated genes hypoxia-inducible factor 1α (HIF-1α), oxidative stress induced growth inhibitor 2 (OSGIN2) and vascular endothelial growth factor (VEGF) by miR-199a-5p. Survival analyses indicated that low expression of miR-199a-5p was significantly correlated with poorer tumor-specific survival (univariate Cox's-Regression analyses; relative risk=1.92, P=0.029). Furthermore, it was demonstrated that the 3'UTR of HIF-1α and OSGIN2 genes were regulated by miR-199a-5p in-vitro, although the 3'UTR of VEGF was not. To the best of our knowledge, this is the first report demonstrating the regulation of the 3'untranslated region of the OSGIN2 gene by miR-199a-5p and a significant correlation between low miR-199a-5p expression and a poor outcome of patients with soft tissue sarcoma.
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Affiliation(s)
- Jacqueline Keßler
- Department of Radiotherapy, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Swetlana Rot
- Department of Oral and Maxillofacial Plastic Surgery, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Matthias Bache
- Department of Radiotherapy, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Matthias Kappler
- Department of Oral and Maxillofacial Plastic Surgery, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Peter Würl
- Department of General and Visceral Surgery, Diakonie Hospital, D-06114 Halle (Saale), Germany
| | - Dirk Vordermark
- Department of Radiotherapy, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Helge Taubert
- Clinic of Urology, FA University Hospital Erlangen-Nürnberg, D-91052 Erlangen, Germany
| | - Thomas Greither
- Center for Reproductive Medicine and Andrology, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
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Yeligar SM, Mehta AJ, Harris FL, Brown LAS, Hart CM. Peroxisome Proliferator-Activated Receptor γ Regulates Chronic Alcohol-Induced Alveolar Macrophage Dysfunction. Am J Respir Cell Mol Biol 2016; 55:35-46. [PMID: 26677910 PMCID: PMC4942203 DOI: 10.1165/rcmb.2015-0077oc] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 12/15/2015] [Indexed: 12/13/2022] Open
Abstract
Peroxisome proliferator-activated receptor (PPAR) γ is critical for alveolar macrophage (AM) function. Chronic alcohol abuse causes AM phagocytic dysfunction and susceptibility to respiratory infections by stimulating nicotinamide adenine dinucleotide oxidases (Nox), transforming growth factor-β1, and oxidative stress in the AM. Because PPARγ inhibits Nox expression, we hypothesized that alcohol reduces PPARγ, stimulating AM dysfunction. AMs were examined from: (1) patients with alcoholism or control patients; (2) a mouse model of chronic ethanol consumption; (3) PPARγ knockout mice; or (4) MH-S cells exposed to ethanol in vitro. Alcohol reduced AM PPARγ levels and increased Nox1, -2, and -4, transforming growth factor-β1, oxidative stress, and phagocytic dysfunction. Genetic loss of PPARγ recapitulated, whereas stimulating PPARγ activity attenuated alcohol-mediated alterations in gene expression and phagocytic function, supporting the importance of PPARγ in alcohol-induced AM derangements. Similarly, PPARγ activation in vivo reduced alcohol-mediated impairments in lung bacterial clearance. Alcohol increased levels of microRNA-130a/-301a, which bind to the PPARγ 3' untranslated region to reduce PPARγ expression. MicroRNA-130a/-301a inhibition attenuated alcohol-mediated PPARγ reductions and derangements in AM gene expression and function. Alcohol-induced Toll-like receptor 4 endocytosis was reversed by PPARγ activation. These findings demonstrate that targeting PPARγ provides a novel therapeutic approach for mitigating alcohol-induced AM derangements and susceptibility to lung infection.
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Affiliation(s)
- Samantha M. Yeligar
- Emory University, Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Emory and Children’s Healthcare of Atlanta Center for Developmental Lung Biology, Atlanta, Georgia
- Emory University, Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, Atlanta Veterans Affairs and Emory University Medical Centers, Decatur, Georgia
| | - Ashish J. Mehta
- Emory University, Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, Atlanta Veterans Affairs and Emory University Medical Centers, Decatur, Georgia
| | - Frank L. Harris
- Emory University, Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Emory and Children’s Healthcare of Atlanta Center for Developmental Lung Biology, Atlanta, Georgia
| | - Lou Ann S. Brown
- Emory University, Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Emory and Children’s Healthcare of Atlanta Center for Developmental Lung Biology, Atlanta, Georgia
| | - C. Michael Hart
- Emory University, Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, Atlanta Veterans Affairs and Emory University Medical Centers, Decatur, Georgia
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Luo Z, Feng C, Hu P, Chen Y, He XF, Li Y, Zhao J. Serum microRNA-199a/b-3p as a predictive biomarker for treatment response in patients with hepatocellular carcinoma undergoing transarterial chemoembolization. Onco Targets Ther 2016; 9:2667-74. [PMID: 27226729 PMCID: PMC4863685 DOI: 10.2147/ott.s98408] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Objective The aim of this study was to investigate whether the level of serum microRNA-199a/b-3p (miR-199a/b-3p) can serve as a predictor of treatment response to transarterial chemoembolization (TACE) in patients with hepatocellular carcinoma (HCC). Methods Serum miR-199a/b-3p expression level was measured in 132 patients with HCC before TACE (t1) and 3–5 days after TACE (t2). Additionally, 126 patients of these 132 patients had levels measured 4 weeks after TACE (t3) and 3–5 days after second TACE (t4). Serum miR-199a/b-3p expression levels were compared with those of 50 healthy controls. Correlations between miR-199a/b-3p expression levels and clinicopathologic factors and tumor responsiveness were analyzed. The modified Response Evaluation Criteria in Solid Tumors assessment was conducted at t3. Results A lower mean baseline miR-199a/b-3p expression level was observed in patients with HCC compared with healthy controls (0.68±0.81 vs 2.50±2.16, P<0.001). A negative correlation between baseline miR-199a/b-3p expression levels and tumor size (P<0.001) was observed. The nonresponder group had significantly lower miR-199a/b-3p expression levels than the responder group at t1 (0.77±1.09 vs 1.96±1.32, P<0.001). In addition, the decrease in miR-199a/b-3p at t2 was greater in the responder group than in the nonresponder group (P=0.011). A higher proportion of the responder group achieved a >25% decrease in serum miR-199a/b-3p expression levels compared with the nonresponder group (64% vs 39%). Conclusion Serum miR-199a/b-3p may represent a novel biomarker for predicting efficacy of TACE in patients with HCC.
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Affiliation(s)
- Zelong Luo
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Chao Feng
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Peng Hu
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yong Chen
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Xiao-Feng He
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yanhao Li
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Jianbo Zhao
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
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Lopez-Ramirez MA, Reijerkerk A, de Vries HE, Romero IA. Regulation of brain endothelial barrier function by microRNAs in health and neuroinflammation. FASEB J 2016; 30:2662-72. [PMID: 27118674 DOI: 10.1096/fj.201600435rr] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 04/12/2016] [Indexed: 02/05/2023]
Abstract
Brain endothelial cells constitute the major cellular element of the highly specialized blood-brain barrier (BBB) and thereby contribute to CNS homeostasis by restricting entry of circulating leukocytes and blood-borne molecules into the CNS. Therefore, compromised function of brain endothelial cells has serious consequences for BBB integrity. This has been associated with early events in the pathogenesis of several disorders that affect the CNS, such as multiple sclerosis, HIV-associated neurologic disorder, and stroke. Recent studies demonstrate that brain endothelial microRNAs play critical roles in the regulation of BBB function under normal and neuroinflammatory conditions. This review will focus on emerging evidence that indicates that brain endothelial microRNAs regulate barrier function and orchestrate various phases of the neuroinflammatory response, including endothelial activation in response to cytokines as well as restoration of inflamed endothelium into a quiescent state. In particular, we discuss novel microRNA regulatory mechanisms and their contribution to cellular interactions at the neurovascular unit that influence the overall function of the BBB in health and during neuroinflammation.-Lopez-Ramirez, M. A., Reijerkerk, A., de Vries, H. E., Romero, I. A. Regulation of brain endothelial barrier function by microRNAs in health and neuroinflammation.
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Affiliation(s)
| | | | - Helga E de Vries
- Blood-Brain Barrier Research Group, Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
| | - Ignacio Andres Romero
- Department of Life, Health, and Chemical Sciences, Biomedical Research Network, The Open University, Milton Keynes, United Kingdom
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Natarajan SK, Pachunka JM, Mott JL. Role of microRNAs in Alcohol-Induced Multi-Organ Injury. Biomolecules 2015; 5:3309-38. [PMID: 26610589 PMCID: PMC4693280 DOI: 10.3390/biom5043309] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 11/16/2015] [Indexed: 12/12/2022] Open
Abstract
Alcohol consumption and its abuse is a major health problem resulting in significant healthcare cost in the United States. Chronic alcoholism results in damage to most of the vital organs in the human body. Among the alcohol-induced injuries, alcoholic liver disease is one of the most prevalent in the United States. Remarkably, ethanol alters expression of a wide variety of microRNAs that can regulate alcohol-induced complications or dysfunctions. In this review, we will discuss the role of microRNAs in alcoholic pancreatitis, alcohol-induced liver damage, intestinal epithelial barrier dysfunction, and brain damage including altered hippocampus structure and function, and neuronal loss, alcoholic cardiomyopathy, and muscle damage. Further, we have reviewed the role of altered microRNAs in the circulation, teratogenic effects of alcohol, and during maternal or paternal alcohol consumption.
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Affiliation(s)
- Sathish Kumar Natarajan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, 985870 Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Joseph M Pachunka
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, 985870 Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Justin L Mott
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, 985870 Nebraska Medical Center, Omaha, NE 68198, USA.
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Zhang LF, Lou JT, Lu MH, Gao C, Zhao S, Li B, Liang S, Li Y, Li D, Liu MF. Suppression of miR-199a maturation by HuR is crucial for hypoxia-induced glycolytic switch in hepatocellular carcinoma. EMBO J 2015; 34:2671-85. [PMID: 26346275 PMCID: PMC4641532 DOI: 10.15252/embj.201591803] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 08/11/2015] [Accepted: 08/20/2015] [Indexed: 01/06/2023] Open
Abstract
Glucose metabolic reprogramming is a hallmark of cancer. Cancer cells rapidly adjust their energy source from oxidative phosphorylation to glycolytic metabolism in order to efficiently proliferate in a hypoxic environment, but the mechanism underlying this switch is still incompletely understood. Here, we report that hypoxia potently induces the RNA-binding protein HuR to specifically bind primary miR-199a transcript to block miR-199a maturation in hepatocellular carcinoma (HCC) cells. We demonstrate that this hypoxia-suppressed miR-199a plays a decisive role in limiting glycolysis in HCC cells by targeting hexokinase-2 (Hk2) and pyruvate kinase-M2 (Pkm2). Furthermore, systemically delivered cholesterol-modified agomiR-199a inhibits [(18)F]-fluorodeoxyglucose uptake and attenuates tumor growth in HCC tumor-bearing mice. These data reveal a novel mechanism of reprogramming of cancer energy metabolism in which HuR suppresses miR-199a maturation to link hypoxia to the Warburg effect and suggest a promising therapeutic strategy that targets miR-199a to interrupt cancerous aerobic glycolysis.
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Affiliation(s)
- Ling-Fei Zhang
- Center for RNA Research, State Key Laboratory of Molecular Biology-University of Chinese Academy of Sciences, Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences, Shanghai, China Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Jia-Tao Lou
- Department of Laboratory Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ming-Hua Lu
- Center for RNA Research, State Key Laboratory of Molecular Biology-University of Chinese Academy of Sciences, Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences, Shanghai, China Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Chunfang Gao
- Department of Laboratory Medicine, Eastern Hepatobiliary Surgical Hospital, Second Military Medical University, Shanghai, China
| | - Shuang Zhao
- Center for RNA Research, State Key Laboratory of Molecular Biology-University of Chinese Academy of Sciences, Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences, Shanghai, China Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Biao Li
- Department of Nuclear Medicine and Micro PET Center, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sheng Liang
- Department of Nuclear Medicine, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yong Li
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Dangsheng Li
- Shanghai Information Center for Life Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Mo-Fang Liu
- Center for RNA Research, State Key Laboratory of Molecular Biology-University of Chinese Academy of Sciences, Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences, Shanghai, China Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
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Tomar A, Malhotra S, Sarkar S. Polymorphism profiling of nine high altitude relevant candidate gene loci in acclimatized sojourners and adapted natives. BMC Genet 2015; 16:112. [PMID: 26373931 PMCID: PMC4572652 DOI: 10.1186/s12863-015-0268-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 08/28/2015] [Indexed: 01/31/2023] Open
Abstract
Background Sea level sojourners, on ascent to high altitude, undergo acclimatization through integrated physiological processes for defending the body against oxygen deprivation while the high altitude natives (resident population) are adapted to the prevailing hypobaric hypoxic condition through natural selection. Separating the acclimatization processes from adaptive changes and identifying genetic markers in lowlanders that may be beneficial for offsetting the high altitude hypoxic stress, although challenging, is worth investigating. We genotyped nine candidate gene polymorphisms, suggested to be relevant in high altitude environment, in sea level acclimatized sojourners and adapted natives for understanding differences/commonality between the acclimatized and the adapted cohorts at the genetic level. Results Statistically similar genotypic and allelic frequencies were observed between the sea level sojourners (acclimatized) and the high altitude natives (adapted) in six loci viz., EDN1 (endothelin 1) -3A/-4A VNTR, ADRB2 (beta-2 adrenergic receptor, surface) Arg16Gly (rs1042713:A > G), ADRB3 (beta-3 adrenergic receptor) Trp64Arg (rs4994:T > C), eNOS (nitric oxide synthase, endothelial) Glu298Asp (rs1799983:T > G), TH (tyrosine hydroxylase) Val81Met (rs6356:G > A) and VEGF (vascular endothelial growth factor) 963C > T (rs3025039:C > T) while SCNN1B (amiloride-sensitive sodium channel, subunit beta) Thr594Met (rs1799979:C > T) was monomorphic. Genotypic and allelic frequencies in EDN1 9465G > A (rs2071942:G > A) and ADRB2 Gln27Glu (rs1042714:G > C) were significantly different between the acclimatized sojourners and the high altitude natives with higher frequency of GG and GA genotypes of EDN1 rs2071942 and CC genotype of ADRB2 rs1042714 being observed in Ladakh natives. Mutated A allele (AA genotype) of rs2071942 and carriers of G allele (GG + GC genotypes) of rs1042714 were less favorable during acclimatization under recessive and dominant genetic models of inheritance respectively indicating thereby that GG genotype and G allele of EDN1 rs2071942 and CC genotype of ADRB2 rs1042714 conferred acclimatization benefit. Conclusion Sea level acclimatized individuals shared similarity with the adapted natives in certain high altitude relevant genetically based trait variation suggesting advantageous consequence as well as commonality in gene regulatory pathways in which these gene products function both during process of acclimatization and adaptation in high altitude environment. Electronic supplementary material The online version of this article (doi:10.1186/s12863-015-0268-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Arvind Tomar
- Defence Research and Development Establishment, Ministry of Defence R&D Organization, Jhansi Road, Gwalior, 474002, India.
| | - Seema Malhotra
- Defence Institute of Physiology and Allied Sciences, Ministry of Defence R&D Organization, Lucknow Road, Delhi, 110054, India.
| | - Soma Sarkar
- Defence Institute of Physiology and Allied Sciences, Ministry of Defence R&D Organization, Lucknow Road, Delhi, 110054, India.
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Zakhari S. Chronic alcohol drinking: Liver and pancreatic cancer? Clin Res Hepatol Gastroenterol 2015; 39 Suppl 1:S86-91. [PMID: 26193868 DOI: 10.1016/j.clinre.2015.05.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 05/13/2015] [Accepted: 05/16/2015] [Indexed: 02/07/2023]
Abstract
Cancer is a multifactorial disease that results from complex interactions of numerous risk factors - genetic and environmental - over time, eventually leading to the diseased phenotypes. Thus, while epidemiological studies can point to risk factors, they cannot determine cause and effect relationships, and are unable to give biological and clinical insights into carcinogenesis. The link between any risk factor and carcinogenesis needs to be validated in experimental models. This is particularly true in epidemiological studies on alcohol consumption and its consequences. While there is no doubt that heavy alcohol consumption has devastating health effects, the inconsistencies in alcohol-related epidemiological studies and cancer suffer from possible sources of the variability in outcomes, ranging from inaccuracy of self-report of consumption to the problem of correlating cancer that started decades earlier to current or recent alcohol consumption. To further study the interactions between alcohol and cancer, the use of "Molecular Pathological Epidemiology" (MPE) advocated by Ogino et al. for dissecting the interplay between etiological factors, cellular and molecular characteristics, and disease progression in cancer is appropriate. MPE does not consider cancer as a single entity, rather it integrates analyses of epidemiological studies with the macroenvironment and molecular and microenvironment. This approach allows investigating the relationships between potential etiological agents and cancer based on molecular signatures. More research is needed to fully elucidate the link between heavy alcohol consumption and pancreatic cancer, and to further investigate the roles of acetaldehyde and FAEEs in pancreatic carcinogenesis.
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Affiliation(s)
- Samir Zakhari
- 1250 Eye Street, NW, suite 400, Washington, DC 20005, USA.
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