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Lee BP, Witkiewitz K, Mellinger J, Anania FA, Bataller R, Cotter TG, Curtis B, Dasarathy S, DeMartini KS, Diamond I, Diazgranados N, DiMartini AF, Falk DE, Fernandez AC, German MN, Kamath PS, Kidwell KM, Leggio L, Litten R, Louvet A, Lucey MR, McCaul ME, Sanyal AJ, Singal AK, Sussman NL, Terrault NA, Thursz MR, Verna EC, Radaeva S, Nagy LE, Mitchell MC. Designing clinical trials to address alcohol use and alcohol-associated liver disease: an expert panel Consensus Statement. Nat Rev Gastroenterol Hepatol 2024; 21:626-645. [PMID: 38849555 DOI: 10.1038/s41575-024-00936-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/22/2024] [Indexed: 06/09/2024]
Abstract
Most patients with alcohol-associated liver disease (ALD) engage in heavy drinking defined as 4 or more drinks per day (56 g) or 8 (112 g) or more drinks per week for women and 5 or more drinks per day (70 g) or 15 (210 g) or more drinks per week for men. Although abstinence from alcohol after diagnosis of ALD improves life expectancy and reduces the risk of decompensation of liver disease, few studies have evaluated whether treatment of alcohol use disorders will reduce progression of liver disease and improve liver-related outcomes. In November 2021, the National Institute of Alcohol Abuse and Alcoholism commissioned a task force that included hepatologists, addiction medicine specialists, statisticians, clinical trialists and members of regulatory agencies to develop recommendations for the design and conduct of clinical trials to evaluate the effect of alcohol use, particularly treatment to reduce or eliminate alcohol use in patients with ALD. The task force conducted extensive reviews of relevant literature on alcohol use disorders and ALD. Findings were presented at one in-person meeting and discussed over the next 16 months to develop the final recommendations. As few clinical trials directly address this topic, the 28 recommendations approved by all members of the task force represent a consensus of expert opinions.
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Affiliation(s)
- Brian P Lee
- Division of Gastroenterology and Liver Diseases, University of Southern California Keck School of Medicine and Institute for Addiction Science, University of Southern California, Los Angeles, CA, USA
| | - Katie Witkiewitz
- Center on Alcohol, Substance use and Addictions, University of New Mexico, Albuquerque, NM, USA
| | - Jessica Mellinger
- Department of Internal Medicine, Department of Psychiatry, Michigan Medicine, Ann Arbor, MI, USA
| | - Frank A Anania
- Division of Hepatology and Nutrition, US Food and Drug Administration, Silver Spring, MD, USA
| | - Ramon Bataller
- Liver Unit, Hospital Clinic, Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Thomas G Cotter
- Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Brenda Curtis
- Technology and Translational Research Unit, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program, Baltimore, MD, USA
| | - Srinivasan Dasarathy
- Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH, USA
| | - Kelly S DeMartini
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | | | - Nancy Diazgranados
- Office of the Clinical Director, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Andrea F DiMartini
- Departments of Psychiatry and Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Daniel E Falk
- Medications Development Branch, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | | | - Margarita N German
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Patrick S Kamath
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Kelley M Kidwell
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Lorenzo Leggio
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, MD, USA
| | - Raye Litten
- Division of Treatment and Recovery, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Alexandre Louvet
- Service des maladies de l'appareil digestif, University Hospital of Lille, Lille, France
- Unité INSERM INFINITE, Lille, France
| | - Michael R Lucey
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Mary E McCaul
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Arun J Sanyal
- Stravitz-Sanyal Institute for Liver Disease and Metabolic Health, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Ashwani K Singal
- Department of Medicine, Division of Gastroenterology Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY, USA
- Department of Medicine, Robley Rex VA Medical Center, Louisville, KY, USA
| | - Norman L Sussman
- DURECT Corporation, Cupertino, CA, USA
- Baylor College of Medicine, Houston, TX, USA
| | - Norah A Terrault
- Division of Gastroenterology and Liver Diseases, University of Southern California Keck School of Medicine and Institute for Addiction Science, University of Southern California, Los Angeles, CA, USA
| | - Mark R Thursz
- Division of Digestive Diseases, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Elizabeth C Verna
- Division of Digestive and Liver Diseases, Columbia University, New York, NY, USA
| | - Svetlana Radaeva
- Svetlana Radaeva, Division of Metabolism and Health Effects, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Laura E Nagy
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Mack C Mitchell
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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Spille DC, Kuroczik D, Görlich D, Varghese J, Schwake M, Stummer W, Holling M. Which risk factors significantly influence the outcome of traumatic brain injured patients with alcohol use disorder? Eur J Trauma Emerg Surg 2024; 50:1187-1197. [PMID: 37578515 PMCID: PMC11458655 DOI: 10.1007/s00068-023-02346-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/01/2023] [Indexed: 08/15/2023]
Abstract
PURPOSE Every year, approximately 10 million people worldwide suffer a traumatic brain injury that leads to hospitalization or mortality. Chronic and acute alcohol intoxication increase the risk of developing traumatic brain injury. Alcohol use disorder (AUD) as a predictor of outcome in neurosurgical patients and the definition of risk factors have been sparsely addressed so far. This study aims to improve the understanding of the effects of alcohol use disorder in the context of neurosurgical therapy. METHODS This study included patients admitted to Münster University Hospital with a traumatic brain injury and alcohol use disorder from January 1, 2010, to December 31, 2018. Univariate and multivariate analyses were performed to identify risk factors for a poorer outcome, assessed by the Glasgow Outcome Score. RESULTS Of the 197 patients included, 156 (79%) were male, and 41 (21%) were female, with a median age of 49 years (IQR 38-58 years). In multivariate analyses, age (p < 0.001), the occurrence of a new neurologic deficit (p < 0.001), the development of hydrocephalus (p = 0.005), and CT-graphic midline shift due to intracerebral hemorrhage (p = 0.008) emerged as significant predictors of a worse outcome (GOS 1-3). In addition, the level of blood alcohol concentration correlated significantly with the occurrence of seizures (p = 0.009). CONCLUSIONS Early identification of risk factors in patients with alcohol use disorder and traumatic brain injury is crucial to improve the outcome. In this regard, the occurrence of hydrocephalus or seizures during the inpatient stay should be considered as cause of neurological deterioration in this patient group.
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Affiliation(s)
| | - David Kuroczik
- Department of Neurosurgery, University Hospital Münster, Münster, Germany
| | - Dennis Görlich
- Institute of Biostatistics and Clinical Research, University of Münster, Münster, Germany
| | - Julian Varghese
- Institute of Medical Informatics, University of Münster, Münster, Germany
| | - Michael Schwake
- Department of Neurosurgery, University Hospital Münster, Münster, Germany
| | - Walter Stummer
- Department of Neurosurgery, University Hospital Münster, Münster, Germany
| | - Markus Holling
- Department of Neurosurgery, University Hospital Münster, Münster, Germany.
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Choi YJ, Kim Y, Hwang S. Role of Neutrophils in the Development of Steatotic Liver Disease. Semin Liver Dis 2024; 44:300-318. [PMID: 39117322 DOI: 10.1055/s-0044-1789207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
This review explores the biological aspects of neutrophils, their contributions to the development of steatotic liver disease, and their potential as therapeutic targets for the disease. Although alcohol-associated and metabolic dysfunction-associated liver diseases originate from distinct etiological factors, the two diseases frequently share excessive lipid accumulation as a common contributor to their pathogenesis, thereby classifying them as types of steatotic liver disease. Dysregulated lipid deposition in the liver induces hepatic injury, triggering the activation of the innate immunity, partially through neutrophil recruitment. Traditionally recognized for their role in microbial clearance, neutrophils have recently garnered attention for their involvement in sterile inflammation, a pivotal component of steatotic liver disease pathogenesis. In conclusion, technological innovations, including single-cell RNA sequencing, have gradually disclosed the existence of various neutrophil subsets; however, how the distinct subsets of neutrophil population contribute differentially to the development of steatotic liver disease remains unclear.
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Affiliation(s)
- You-Jin Choi
- College of Pharmacy, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Yeonsoo Kim
- College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, Republic of Korea
| | - Seonghwan Hwang
- College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, Republic of Korea
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Konstantis G, Tsaousi G, Pourzitaki C, Kitsikidou E, Magouliotis DE, Wiener S, Zeller AC, Willuweit K, Schmidt HH, Rashidi-Alavijeh J. Efficacy of Granulocyte Colony-Stimulating Factor in Acute on Chronic Liver Failure: A Systematic Review and Survival Meta-Analysis. J Clin Med 2023; 12:6541. [PMID: 37892679 PMCID: PMC10607065 DOI: 10.3390/jcm12206541] [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: 09/04/2023] [Revised: 10/02/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Acute-on-chronic liver failure (ACLF) mostly occurs when there is an acute insult to the liver in patients with pre-existing liver disease, and it is characterized by a high mortality rate. Various therapeutic approaches have been used thus far, with orthotopic liver transplantation being the only definitive cure. Clinical trials and meta-analyses have investigated the use of granulocyte colony-stimulating factor (G-CSF) to mobilize bone marrow-derived stem cells. Some studies have suggested that G-CSF may have a significant role in the management and survival of patients with ACLF. However, the results are conflicting, and the efficacy of G-CSF still needs to be confirmed. AIM The aim was to assess the efficacy of G-CSF in patients with ACLF. METHODS Electronic databases were searched until May 2023 for randomized controlled trials investigating the use of G-CSF in adult patients with ACLF. Outcome measures were the effects of G-CSF on overall survival, changes in liver disease severity scores, complications of cirrhosis, other G-CSF-related adverse effects, and all-cause mortality. The study's protocol has been registered with Prospero (CRD42023420273). RESULTS Five double-blind randomized controlled trials involving a total of 421 participants met the inclusion criteria. The use of G-CSF demonstrated a significant effect on overall survival (HR 0.63, 95% CI 0.41 to 0.95, and I2 48%), leading to a decreased mortality (LogOR-0.97, 95% CI -1.57 to -0.37, and I2 37.6%) and improved Model for End-Stage Liver Disease (MELD) scores (SMD -0.87, 95% CI -1.62 to -0.13, and I2 87.3%). There was no correlation between the improvement of the Child-Pugh score and the use of G-CSF(SMD -2.47, 95% CI -5.78 to 0.83, and I2 98.1%). The incidence of complications of cirrhosis did not decrease significantly with G-CSF treatment (rate ratio 0.51, 95% CI 0.26 to 1.01, and I2 90%). A qualitative synthesis showed that the use of G-CSF is safe. CONCLUSIONS The administration of G-CSF has demonstrated a positive impact on overall survival, liver function, and the MELD score. The presence of heterogeneity in the included studies prohibits conclusive recommendations.
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Affiliation(s)
- Georgios Konstantis
- Clinical Pharmacology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Department of Gastroenterology, Hepatology and Transplant Medicine, Medical Faculty, University of Duisburg-Essen, 40219 Essen, Germany
| | - Georgia Tsaousi
- Department of Anesthesiology and ICU, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Chryssa Pourzitaki
- Clinical Pharmacology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Elisavet Kitsikidou
- Department of Internal Medicine, Evangelical Hospital Dusseldorf, 40217 Dusseldorf, Germany;
| | | | - Sebastian Wiener
- Department of Gastroenterology, Hepatology and Transplant Medicine, Medical Faculty, University of Duisburg-Essen, 40219 Essen, Germany
| | - Amos Cornelius Zeller
- Department of Gastroenterology, Hepatology and Transplant Medicine, Medical Faculty, University of Duisburg-Essen, 40219 Essen, Germany
| | - Katharina Willuweit
- Department of Gastroenterology, Hepatology and Transplant Medicine, Medical Faculty, University of Duisburg-Essen, 40219 Essen, Germany
| | - Hartmut H. Schmidt
- Department of Gastroenterology, Hepatology and Transplant Medicine, Medical Faculty, University of Duisburg-Essen, 40219 Essen, Germany
| | - Jassin Rashidi-Alavijeh
- Department of Gastroenterology, Hepatology and Transplant Medicine, Medical Faculty, University of Duisburg-Essen, 40219 Essen, Germany
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Lewis SA, Doratt BM, Qiao Q, Blanton M, Grant KA, Messaoudi I. Integrated single cell analysis shows chronic alcohol drinking disrupts monocyte differentiation in the bone marrow. Stem Cell Reports 2023; 18:1884-1897. [PMID: 37657446 PMCID: PMC10545484 DOI: 10.1016/j.stemcr.2023.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 08/01/2023] [Accepted: 08/01/2023] [Indexed: 09/03/2023] Open
Abstract
Chronic heavy alcohol drinking (CHD) rewires monocytes and macrophages toward heightened inflammatory states with compromised antimicrobial defenses that persist after 1-month abstinence. To determine whether these changes are mediated through alterations in the bone marrow niche, we profiled monocytes and hematopoietic stem cell progenitors (HSCPs) from CHD rhesus macaques using a combination of functional assays and single cell genomics. CHD resulted in transcriptional profiles consistent with increased activation and inflammation within bone marrow resident monocytes and macrophages. Furthermore, CHD resulted in transcriptional signatures associated with increased oxidative and cellular stress in HSCP. Differentiation of HSCP in vitro revealed skewing toward monocytes expressing "neutrophil-like" markers with greater inflammatory responses to bacterial agonists. Further analyses of HSCPs showed broad epigenetic changes that were in line with exacerbated inflammatory responses within monocytes and their progenitors. In summary, CHD alters HSCPs in the bone marrow leading to the production of monocytes poised to generate dysregulated hyper-inflammatory responses.
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Affiliation(s)
- Sloan A Lewis
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Brianna M Doratt
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA 92697, USA; Department of Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Qi Qiao
- Department of Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Madison Blanton
- Department of Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Kathleen A Grant
- Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
| | - Ilhem Messaoudi
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA 92697, USA; Department of Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, Lexington, KY 40536, USA.
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Pontes Pereira TT, Fideles Duarte-Andrade F, Gardone Vitório J, do Espírito Santo Pereira T, Braga Martins FR, Marques Souza JA, Malacco NL, Mathias Melo E, Costa Picossi CR, Pinto E, Santiago Gomez R, Martins Teixeira M, Nori de Macedo A, André Baptista Canuto G, Soriani FM. Chronic alcohol administration alters metabolomic profile of murine bone marrow. Front Immunol 2023; 14:1128352. [PMID: 37090737 PMCID: PMC10113543 DOI: 10.3389/fimmu.2023.1128352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/06/2023] [Indexed: 04/25/2023] Open
Abstract
Introduction People with hazardous alcohol use are more susceptible to viral, bacterial, and fungal infections due to the effect of alcohol on immune system cell function. Metabolized ethanol reduces NAD+ to NADH, affecting critical metabolic pathways. Here, our aim was to investigate whether alcohol is metabolized by bone marrow cells and if it impacts the metabolic pathways of leukocyte progenitor cells. This is said to lead to a qualitative and quantitative alteration of key metabolites which may be related to the immune response. Methods We addressed this aim by using C57BL/6 mice under chronic ethanol administration and evaluating the metabolomic profile of bone marrow total cells by gas chromatography-coupled mass spectrometry (GC-MS). Results We identified 19 metabolites. Our data demonstrated that chronic ethanol administration alters the metabolomic profile in the bone marrow, resulting in a statistically diminished abundance of five metabolites in ethanol-treated animals: uracil, succinate, proline, nicotinamide, and tyrosine. Discussion Our results demonstrate for the first time in the literature the effects of alcohol consumption on the metabolome content of hematopoietic tissue and open a wide range of further studies to investigate mechanisms by which alcohol compromises the cellular function of the immune system.
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Affiliation(s)
| | | | - Jéssica Gardone Vitório
- Department of Clinic, Pathology and Dental Surgery, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | | | | | - Eliza Mathias Melo
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Ernani Pinto
- Nuclear Energy Center in Agriculture, Escola Superior de Agricultura Luiz de Queiroz, University of São Paulo, Piracicaba, Brazil
| | - Ricardo Santiago Gomez
- Department of Clinic, Pathology and Dental Surgery, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Mauro Martins Teixeira
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Gisele André Baptista Canuto
- Department of Analytical Chemistry of the Institute of Chemistry, Universidade Federal da Bahia, Salvador, Brazil
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Lewis SA, Doratt BM, Qiao Q, Blanton MB, Grant KA, Messaoudi I. Integrated single cell analysis shows chronic alcohol drinking disrupts monocyte differentiation in the bone marrow niche. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.29.534727. [PMID: 37034734 PMCID: PMC10081177 DOI: 10.1101/2023.03.29.534727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Chronic alcohol drinking rewires circulating monocytes and tissue-resident macrophages towards heightened inflammatory states with compromised anti-microbial defenses. As these effects remain consistent in short-lived monocytes after a 1-month abstinence period it is unclear whether these changes are restricted to the periphery or mediated through alterations in the progenitor niche. To test this hypothesis, we profiled monocytes/macrophages and hematopoietic stem cell progenitors (HSCP) of the bone marrow compartment from rhesus macaques after 12 months of ethanol consumption using a combination of functional assays and single cell genomics. Bone marrow-resident monocytes/macrophages from ethanol-consuming animals exhibited heightened inflammation. Differentiation of HSCP in vitro revealed skewing towards monocytes expressing neutrophil-like markers with heightened inflammatory responses to bacterial agonists. Single cell transcriptional analysis of HSCPs showed reduced proliferation but increased inflammatory markers in mature myeloid progenitors. We observed transcriptional signatures associated with increased oxidative and cellular stress as well as oxidative phosphorylation in immature and mature myeloid progenitors. Single cell analysis of the chromatin landscape showed altered drivers of differentiation in monocytes and progenitors. Collectively, these data indicate that chronic ethanol drinking results in remodeling of the transcriptional and epigenetic landscapes of the bone marrow compartment leading to altered functions in the periphery.
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Affiliation(s)
- Sloan A. Lewis
- Department of Molecular Biology and Biochemistry, University of California, Irvine CA 92697, USA
| | - Brianna M Doratt
- Department of Molecular Biology and Biochemistry, University of California, Irvine CA 92697, USA
- Department of Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, Lexington, KY 40536
| | - Qi Qiao
- Department of Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, Lexington, KY 40536
| | - Madison B. Blanton
- Department of Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, Lexington, KY 40536
| | - Kathleen A. Grant
- Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
| | - Ilhem Messaoudi
- Department of Molecular Biology and Biochemistry, University of California, Irvine CA 92697, USA
- Department of Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, Lexington, KY 40536
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Yan Z, Zhang K, Zhang K, Wang G, Wang L, Zhang J, Qiu Z, Guo Z, Kang Y, Song X, Li J. Huang Bai Jian Pi decoction alleviates diarrhea and represses inflammatory injury via PI3K/Akt/NF-κB pathway: In vivo and in vitro studies. JOURNAL OF ETHNOPHARMACOLOGY 2022; 292:115212. [PMID: 35331876 DOI: 10.1016/j.jep.2022.115212] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/11/2022] [Accepted: 03/17/2022] [Indexed: 05/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Huang Bai Jian Pi (HBJP) decoction, a Chinese herbal formula based on the Pulsatilla decoction (PD) and Si Junzi decoction, is efficacy to treat clinical diarrhea in calves. AIM OF THE STUDY The mechanism of HBJP decoction to treat calf diarrhea remains unclear. This study was to investigate the therapeutic effect and anti-inflammatory mechanism of HBJP decoction on diarrhea in rats. MATERIALS AND METHODS Thirty-six Sprague Dawley rats were randomly divided into control group, model group, PD group and three treated groups with HBJP decoction. The diarrheal model in rats was established by multiple factors including high-sugar and fat diet, high temperature and dampness environment, biological pathogenic factors. The diarrheal animals were treated with HBJP decoction or PD for 5 days. The inflammatory model of the intestinal epithelioid cell line 6 (IEC-6) was induced by TNF-α. The clinical symptoms, blood routine and biochemistry parameters, histopathology of main organs were detected. The proteins associated with PI3K/Akt/NF-κB pathway and the expression levels of cytokines associated with inflammation were detected in vivo and in vitro by Western blot and ELISA. RESULTS The model rats showed obvious diarrheal symptoms, and the obvious systemic inflammatory response accompanied with abnormal change in blood routine, biochemistry parameters and histopathology. HBJP decoction alleviated obviously the clinical symptoms, and pathological changes of the liver, colon and lung, and abnormal blood routine and biochemistry indexes in rats. The expression of P-PI3K, P-Akt, P-NF-κB, IL-1β, IL-6 was significantly increased, and the expression of IL-10 was markedly decreased in diarrheal rats and IEC-6 with inflammation. HBJP decoction significantly inhibited the PI3K/AKT/NF-κB signal pathway and adjusted the expression of these inflammatory cytokines. CONCLUSIONS The finding suggested that HBJP decoction alleviate the inflammation in diarrhea through inhibiting the PI3K/Akt/NF-κB signal pathway, which provides scientific evidences for the clinical application of HBJP decoction in diarrhea.
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Affiliation(s)
- Zunxiang Yan
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 730050, Lanzhou, China; College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, China
| | - Kai Zhang
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 730050, Lanzhou, China
| | - Kang Zhang
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 730050, Lanzhou, China
| | - Guibo Wang
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 730050, Lanzhou, China
| | - Lei Wang
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 730050, Lanzhou, China
| | - Jingyan Zhang
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 730050, Lanzhou, China
| | - Zhengying Qiu
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 730050, Lanzhou, China
| | - Zhiting Guo
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 730050, Lanzhou, China
| | - Yandong Kang
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 730050, Lanzhou, China
| | - Xiaoping Song
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, China.
| | - Jianxi Li
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 730050, Lanzhou, China.
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Dual Mode of Action of Talaromyces purpureogenus CFRM02 Pigment to Ameliorate Alcohol Induced Liver Toxicity in Rats. Appl Biochem Biotechnol 2022; 194:4258-4265. [PMID: 35587325 DOI: 10.1007/s12010-022-03973-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 05/10/2022] [Indexed: 12/17/2022]
Abstract
Talaromyces purpureogenus CFRM02 pigment exhibited antioxidant activity by scavenging free radicals. The alcohol feeding leads to free radical generation causing pathophysiological processes of alcoholic liver disease (ALD) and alcoholic hepatitis. T. purpureogenus CFRM02 pigment administered to rats ameliorated the ALD by scavenging ROS. The haematological analysis revealed the increased neutrophil circulation. The neutrophil infiltration was observed in the hepatocytes of the rats fed with pigment (600 mg/kg body weight). The increase in the number of neutrophils helps in liver regeneration caused by alcoholic hepatitis. The dual mechanism of action of pigment, antioxidant and liver regeneration through neutrophil production is attributed to alleviate the ALD. These results suggested that T. purpureogenus CFRM02 pigment represents the protective and therapeutic strategy against ALD.
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Malherbe DC, Messaoudi I. Transcriptional and Epigenetic Regulation of Monocyte and Macrophage Dysfunction by Chronic Alcohol Consumption. Front Immunol 2022; 13:911951. [PMID: 35844518 PMCID: PMC9277054 DOI: 10.3389/fimmu.2022.911951] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023] Open
Abstract
Drinking alcohol, even in moderation, can affect the immune system. Studies have shown disproportionate effects of alcohol on circulating and tissue-resident myeloid cells (granulocytes, monocytes, macrophages, dendritic cells). These cells orchestrate the body's first line of defense against microbial challenges as well as maintain tissue homeostasis and repair. Alcohol's effects on these cells are dependent on exposure pattern, with acute drinking dampening but chronic drinking enhancing production of inflammatory mediators. Although chronic drinking is associated with heightened systemic inflammation, studies on tissue resident macrophage populations in several organs including the spleen, liver, brain, and lung have also shown compromised functional and metabolic capacities of these cells. Many of these effects are thought to be mediated by oxidative stress caused by alcohol and its metabolites which can directly impact the cellular epigenetic landscapes. In addition, since myeloid cells are relatively short-lived in circulation and are under constant repopulation from the bone marrow compartment, alcohol's effects on bone marrow progenitors and hematopoiesis are important for understanding the impact of alcohol systemically on these myeloid populations. Alcohol-induced disruption of progenitor, circulating, and tissue resident myeloid populations contribute to the increased susceptibility of patients with alcohol use disorders to viral and bacterial infections. In this review, we provide an overview of the impact of chronic alcohol consumption on the function of monocytes and macrophages in host defense, tissue repair and inflammation. We then summarize our current understanding of the mechanisms underlying alcohol-induced disruption and examine changes in transcriptome and epigenome of monocytes and mcrophages. Overall, chronic alcohol consumption leads to hyper-inflammation concomitant with decreased microbial and wound healing responses by monocytes/macrophages due to a rewiring of the epigentic and transcriptional landscape. However, in advanced alcoholic liver disease, myeloid cells become immunosuppressed as a response to the surrounding hyper-inflammatory milieu. Therefore, the effect of chronic alcohol on the inflammatory response depends on disease state and the immune cell population.
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11
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Li T, Li Z, Huang L, Tang J, Ding Z, Zeng Z, Liu Y, Liu J. Cigarette Smoking and Peripheral Vascular Disease are Associated with Increasing Risk of ESKAPE Pathogen Infection in Diabetic Foot Ulcers. Diabetes Metab Syndr Obes 2022; 15:3271-3283. [PMID: 36311916 PMCID: PMC9597668 DOI: 10.2147/dmso.s383701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 10/18/2022] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Diabetic foot ulcers (DFUs) and ESKAPE pathogens have attracted attention globally, but the role of ESKAPE pathogens in diabetic foot infection is not well described. The purpose of this study was to evaluate the clinical features, antimicrobial resistance, and risk factors for ESKAPE infection in patients with DFUs. METHODS A retrospective study was conducted on 180 patients with diabetic foot infection admitted to The Affiliated Hospital of Southwest Medical University (Luzhou, China), from January 2017 to April 2021. Antimicrobial susceptibilities of all isolates were determined. Multivariate logistic regression analysis was performed to analyze the independent risk factors for ESKAPE infection, multidrug-resistant (MDR)-ESKAPE infection, MDR-pathogen infection, and severe group in patients with DFUs. RESULTS A total of 206 isolates were collected, of which 42.2% were ESKAPE pathogens. The independent risk factors for ESKAPE infection were cigarette smoking (OR = 1.958; 95% CI, 1.015-3.777) and peripheral vascular disease (OR = 2.096; 95% CI, 1.100-3.992), while alcohol consumption (OR = 2.172; 95% CI, 1.104-4.272) was the independent risk factor for MDR-pathogen infection. Additionally, the independent risk factors for severe DFU group were invasive treatment (OR = 326.642; 95% CI, 76.644-1392.08), the duration of systemic antibiotic treatment (OR = 0.918; 95% CI, 0.849-0.992), and length of hospital stay (OR = 1.145; 95% CI, 1.043-1.256). No independent risk factors for MDR-ESKAPE infection were found. CONCLUSION Our data established the microbiological features of ESKAPE pathogens and clinical manifestations of diabetic foot infection, and provide support for monitoring and management of ESKAPE infection in patients with DFUs in southwest China.
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Affiliation(s)
- Tingting Li
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Lu Zhou, Sichuan, People’s Republic of China
| | - Zhaoyinqian Li
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Lu Zhou, Sichuan, People’s Republic of China
| | - Li Huang
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Lu Zhou, Sichuan, People’s Republic of China
| | - Jingyang Tang
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Lu Zhou, Sichuan, People’s Republic of China
| | - Zixuan Ding
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Lu Zhou, Sichuan, People’s Republic of China
| | - Zhangrui Zeng
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Lu Zhou, Sichuan, People’s Republic of China
| | - Yao Liu
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Lu Zhou, Sichuan, People’s Republic of China
| | - Jinbo Liu
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Lu Zhou, Sichuan, People’s Republic of China
- Correspondence: Jinbo Liu, Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, People’s Republic of China, Tel +86 08303165730, Email
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12
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Connelly JA. Diagnosis and therapeutic decision-making for the neutropenic patient. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2021; 2021:492-503. [PMID: 34889413 PMCID: PMC8791128 DOI: 10.1182/hematology.2021000284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Determining the cause of a low neutrophil count in a pediatric or adult patient is essential for the hematologist's clinical decision-making. Fundamental to this diagnostic process is establishing the presence or lack of a mature neutrophil storage pool, as absence places the patient at higher risk for infection and the need for supportive care measures. Many diagnostic tests, eg, a peripheral blood smear and bone marrow biopsy, remain important tools, but greater understanding of the diversity of neutropenic disorders has added new emphasis on evaluating for immune disorders and genetic testing. In this article, a structure is provided to assess patients based on the mechanism of neutropenia and to prioritize testing based on patient age and hypothesized pathophysiology. Common medical quandaries including fever management, need for growth factor support, risk of malignant transformation, and curative options in congenital neutropenia are reviewed to guide medical decision-making in neutropenic patients.
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Affiliation(s)
- James A. Connelly
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
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13
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Doremus-Fitzwater TL, Deak T. Adolescent neuroimmune function and its interaction with alcohol. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2021; 161:167-208. [PMID: 34801169 DOI: 10.1016/bs.irn.2021.08.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Adolescence is an evolutionarily conserved developmental period associated with behavioral change, including increased risk-taking and alcohol use. Experimentation with alcohol typically begins in adolescence and transitions to binge-like patterns of consumption. Alcohol exposure during adolescence can alter normative changes in brain structure and function. Understanding mechanisms by which ethanol impacts neurodevelopmental processes is important for preventing and ameliorating the deleterious consequences of adolescent alcohol abuse. This review focuses on the neuroimmune system as a key contributor to ethanol-induced changes in adolescent brain and behavior. After brief review of neuroimmune system development, acute and chronic effects of ethanol on adolescent neuroimmune functioning are addressed. Comparisons between stress/immunological challenges and ethanol on adolescent neuroimmunity are reviewed, as cross-sensitization is relevant during adolescence. The mechanisms by which ethanol alters neuroimmune functioning are then discussed, as they may portend development of neuropathological consequences and thus increase vulnerability to subsequent challenges and potentiate addictive behaviors.
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Affiliation(s)
- T L Doremus-Fitzwater
- Department of Psychology, Ithaca College, Ithaca, NY, United States; Developmental Exposure Alcohol Research Center (DEARC), Binghamton, NY, United States.
| | - T Deak
- Developmental Exposure Alcohol Research Center (DEARC), Binghamton, NY, United States; Binghamton University-SUNY, Binghamton, NY, United States
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14
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Tang J, Yan Z, Feng Q, Yu L, Wang H. The Roles of Neutrophils in the Pathogenesis of Liver Diseases. Front Immunol 2021; 12:625472. [PMID: 33763069 PMCID: PMC7982672 DOI: 10.3389/fimmu.2021.625472] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/25/2021] [Indexed: 01/30/2023] Open
Abstract
Neutrophils are the largest population of circulating leukocytes and the first responder against invading pathogens or other danger signals. Sophisticated machineries help them play critical roles in immunity and inflammation, including phagocytosis, superoxide production, cytokine and chemokine production, degranulation, and formation of neutrophil extracellular traps (NETs). After maturation and release from the bone marrow, neutrophils migrate to inflamed tissues in response to many stimuli. Increasing evidences indicate that neutrophils are critically involved in the pathogenesis of liver diseases, including liver cancer, thus making them promising target for the treatment of liver diseases. Here, we would like to provide the latest finding about the role of neutrophils in liver diseases and discuss the potentiality of neutrophils as target for liver diseases.
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Affiliation(s)
- Jiaojiao Tang
- Division of Life Sciences and Medicine, Cancer Research Center, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
- International Cooperation Laboratory on Signal Transduction, Ministry of Education Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Shanghai Key Laboratory of Hepato-Biliary Tumor Biology, Eastern Hepatobiliary Surgery Hospital, Shanghai, China
| | - Zijun Yan
- International Cooperation Laboratory on Signal Transduction, Ministry of Education Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Shanghai Key Laboratory of Hepato-Biliary Tumor Biology, Eastern Hepatobiliary Surgery Hospital, Shanghai, China
- Graduate Management Unit, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Qiyu Feng
- Division of Life Sciences and Medicine, Cancer Research Center, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
- International Cooperation Laboratory on Signal Transduction, Ministry of Education Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Shanghai Key Laboratory of Hepato-Biliary Tumor Biology, Eastern Hepatobiliary Surgery Hospital, Shanghai, China
- National Center for Liver Cancer, Shanghai, China
| | - Lexing Yu
- Division of Life Sciences and Medicine, Cancer Research Center, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
- International Cooperation Laboratory on Signal Transduction, Ministry of Education Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Shanghai Key Laboratory of Hepato-Biliary Tumor Biology, Eastern Hepatobiliary Surgery Hospital, Shanghai, China
- National Center for Liver Cancer, Shanghai, China
| | - Hongyang Wang
- Division of Life Sciences and Medicine, Cancer Research Center, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
- International Cooperation Laboratory on Signal Transduction, Ministry of Education Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Shanghai Key Laboratory of Hepato-Biliary Tumor Biology, Eastern Hepatobiliary Surgery Hospital, Shanghai, China
- National Center for Liver Cancer, Shanghai, China
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15
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Kedarisetty CK, Kumar A, Sarin SK. Insights into the Role of Granulocyte Colony-Stimulating Factor in Severe Alcoholic Hepatitis. Semin Liver Dis 2021; 41:67-78. [PMID: 33764486 DOI: 10.1055/s-0040-1719177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Alcohol use disorder is the predominant cause of chronic liver disease globally. The standard of care for the treatment of alcoholic hepatitis, corticosteroids, has been shown to provide a therapeutic response in ∼60% of carefully selected patients with a short-term survival benefit. The patients who do not respond to steroids, or are ineligible due to infections or very severe disease, have little options other than liver transplantation. There is, thus, a large unmet need for new therapeutic strategies for this large and sick group of patients. Granulocyte colony stimulating factor (G-CSF) has been shown to favorably modulate the intrahepatic immune milieu and stimulate the regenerative potential of the liver. Initial studies have shown encouraging results with G-CSF in patients with severe alcoholic hepatitis. It has also been found to help steroid nonresponsive patients. There is, however, a need for careful selection of patients, regular dose monitoring and close observation for adverse events of G-CSF. In this review, we analyze the basis of the potential benefits, clinical studies, cautions and challenges in the use of G-CSF in alcoholic hepatitis.
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Affiliation(s)
- Chandan Kumar Kedarisetty
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India.,Department of Hepatology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Anupam Kumar
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Shiv Kumar Sarin
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India.,Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
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16
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Shi X, Simms KJ, Zhang P. Acute Alcohol Intoxication Impairs Sonic Hedgehog-Gli1 Signaling and Activation of Primitive Hematopoietic Precursor Cells in the Early Stage of Host Response to Bacteremia. Alcohol Clin Exp Res 2020; 44:1977-1987. [PMID: 32772391 PMCID: PMC7720280 DOI: 10.1111/acer.14429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/29/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Activation of hematopoietic stem cells [HSCs, lineage(lin)- stem cell growth factor receptor (c-kit)+ stem cell antigen-1(Sca-1)+ , or LKS cells in mice] is critical for initiating the granulopoietic response. This study determined the effect of alcohol exposure on sonic hedgehog (SHH) signaling in the regulation of HSC activation during bacteremia. METHODS Acute alcohol intoxication was induced in mice by intraperitoneal (i.p.) injection of 20% alcohol (5 g alcohol/kg body weight). Control mice received i.p. saline. Thirty minutes later, mice were intravenously (i.v.) injected with Escherichia coli (E. coli, 1 to 5 × 107 CFUs/mouse) or saline. RESULTS SHH expression by lineage-negative bone marrow cells (BMCs) was significantly increased 24 hours after E. coli infection. Extracellular signal-regulated kinase 1/2 (ERK1/2)-specificity protein 1 (Sp1) signaling promotes SHH expression. ERK1/2 was markedly activated in BMCs 8 hours following E. coli infection. Alcohol suppressed both the activation of ERK1/2 and up-regulation of SHH expression following E. coli infection. E. coli infection up-regulated GLI family zinc finger 1 (Gli1) gene expression by BMCs and increased Gli1 protein content in LKS cells. The extent of Gli1 expression was correlated with the activity of proliferation in LKS cells. Alcohol inhibited up-regulation of Gli1 expression and activation of LKS cells in response to E. coli infection. Alcohol also interrupted the granulopoietic response to bacteremia. CONCLUSION These data show that alcohol disrupts SHH-Gli1 signaling and HSC activation in the early stage of the granulopoietic response, which may serve as an important mechanism underlying the impairment of immune defense against bacterial infection in host excessively consuming alcohol.
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Affiliation(s)
- Xin Shi
- From the Department of Integrative Medical Sciences, College of Medicine, Northeast Ohio Medical University, Rootstown, Ohio
| | - Kevin J Simms
- From the Department of Integrative Medical Sciences, College of Medicine, Northeast Ohio Medical University, Rootstown, Ohio
| | - Ping Zhang
- From the Department of Integrative Medical Sciences, College of Medicine, Northeast Ohio Medical University, Rootstown, Ohio
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17
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Varlamov O, Bucher M, Myatt L, Newman N, Grant KA. Daily Ethanol Drinking Followed by an Abstinence Period Impairs Bone Marrow Niche and Mitochondrial Function of Hematopoietic Stem/Progenitor Cells in Rhesus Macaques. Alcohol Clin Exp Res 2020; 44:1088-1098. [PMID: 32220015 DOI: 10.1111/acer.14328] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 03/16/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Unhealthy consumption of alcohol is a major public health crisis with strong associations between immunological dysfunctions, high vulnerability to infectious disease, anemia, and an increase in the risk of hematological malignancies. However, there is a lack of studies addressing alcohol-induced changes in bone marrow (BM) and hematopoiesis as fundamental aspects of immune system function. METHODS To address the effect of chronic alcohol consumption on hematopoietic stem and progenitor cells (HSPCs) and the BM niche, we used an established rhesus macaque model of voluntary alcohol drinking. A cohort of young adult male rhesus macaques underwent a standard ethanol self-administration protocol that allowed a choice of drinking alcohol or water 22 hours/day with periods of forced abstinence that elevated subsequent intakes when alcohol availability resumed. Following the last month of forced abstinence, the monkeys were euthanized. HSPCs and bone samples were collected and analyzed in functional assays and by confocal microscopy. RESULTS HSPCs from alcohol animals exhibited reduced ability to form granulocyte-monocyte and erythroid colonies in vitro. HSPCs also displayed a decrease in mitochondrial oxygen consumption linked to ATP production and basal respiratory capacity. Chronic alcohol use led to vascular remodeling of the BM niche, a reduction in the number of primitive HSPCs, and a shift in localization of HSPCs from an adipose to a perivascular niche. CONCLUSIONS Our study demonstrates, for the first time, that chronic voluntary alcohol drinking in rhesus macaque monkeys leads to the long-term impairment of HSPC function, a reduction in mitochondrial respiratory activity, and alterations in the BM microenvironment. Further studies are needed to determine whether these changes in hematopoiesis are persistent or adaptive during the abstinent period and whether an initial imprinting to alcohol primes BM to become more vulnerable to future exposure to alcohol.
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Affiliation(s)
- Oleg Varlamov
- From the, Division of Cardiometabolic Health, (OV), Oregon National Primate Center, Oregon Health & Science University, Portland, Oregon
| | - Matthew Bucher
- Division of Obstetrics and Gynecology, (MB, LM), Oregon Health & Science University, Portland, Oregon
| | - Leslie Myatt
- Division of Obstetrics and Gynecology, (MB, LM), Oregon Health & Science University, Portland, Oregon
| | - Natali Newman
- Division of Neuroscience, (NN, KAG), Oregon National Primate Center, Oregon Health & Science University, Portland, Oregon
| | - Kathleen A Grant
- Division of Neuroscience, (NN, KAG), Oregon National Primate Center, Oregon Health & Science University, Portland, Oregon
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18
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Abstract
Alcoholic liver diseases (ALD) are a wide spectrum of liver diseases caused by excessive alcohol consumption, from steatosis to cirrhosis. The pathogenesis of ALD is insufficiently understood, but mainly involves oxidative stress, inflammation, bacterial translocation, cell death, and impaired regeneration. Despite numerous attempts to improve patient prognosis, the treatment of advanced ALD is still based on abstinence, brief exposure to corticosteroids, or liver transplantation. However, poor response to corticosteroids and the shortage of liver donors leaves patients helpless towards the end stages. Advances in basic research have contributed to a better understanding of ALD pathophysiology, which offers new options for treatment. In recent years, several therapies related to liver regeneration have been tested with promising prospects, including molecule-induced liver regeneration, stem cell transplantation, and full-function 3D artificial liver assembly. This review discusses mechanisms underlying ALD that can be considered therapeutic targets for regeneration-based treatments.
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Affiliation(s)
- Yi Lv
- Laboratory of Neuroendocrinology, Fujian Key Laboratory of Developmental and Neurobiology, College of Life Sciences, Fujian Normal University, Fuzhou 350108, China
| | - Kwok Fai So
- Laboratory of Neuroendocrinology, Fujian Key Laboratory of Developmental and Neurobiology, College of Life Sciences, Fujian Normal University, Fuzhou 350108, China
| | - Jia Xiao
- Laboratory of Neuroendocrinology, Fujian Key Laboratory of Developmental and Neurobiology, College of Life Sciences, Fujian Normal University, Fuzhou 350108, China.,Institute of Clinical Medicine, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China
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19
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Chen LC, Zhang SY, Zi Y, Zhao HM, Wang HY, Zhang Y. Functional coix seed protein hydrolysates as a novel agent with potential hepatoprotective effect. Food Funct 2020; 11:9495-9502. [DOI: 10.1039/d0fo01658f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The aim of this study is to explore the hepatoprotective potential of coix seed protein hydrolysates (CPP) against alcohol-induced liver injury, and investigate the underlying mechanisms.
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Affiliation(s)
- Li-Chun Chen
- School of Food Science and Biotechnology
- Zhejiang Gongshang University
- Hangzhou
- China
- Zhejiang Provincial Key Lab for Chem &Bio Processing Technology of Agricultural Products
| | - Shi-Yu Zhang
- Zhejiang Provincial Key Lab for Chem &Bio Processing Technology of Agricultural Products
- Zhejiang University of Science and Technology
- Hangzhou
- China
| | - Yu Zi
- School of Food Science and Biotechnology
- Zhejiang Gongshang University
- Hangzhou
- China
| | - Hui-Min Zhao
- School of Food Science and Biotechnology
- Zhejiang Gongshang University
- Hangzhou
- China
| | - Hong-Yu Wang
- Zhejiang Provincial Key Lab for Chem &Bio Processing Technology of Agricultural Products
- Zhejiang University of Science and Technology
- Hangzhou
- China
| | - Yue Zhang
- School of Food Science and Biotechnology
- Zhejiang Gongshang University
- Hangzhou
- China
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