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Gao S, Liu K, Ku W, Wang D, Wake H, Qiao H, Teshigawara K, Nishibori M. Histamine induced high mobility group box-1 release from vascular endothelial cells through H1 receptor. Front Immunol 2022; 13:930683. [PMID: 36275732 PMCID: PMC9583674 DOI: 10.3389/fimmu.2022.930683] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 09/22/2022] [Indexed: 11/19/2022] Open
Abstract
Background Systemic allergic reaction is characterized by vasodilation and vascular leakage, which causes a rapid, precipitous and sustained decrease in arterial blood pressure with a concomitant decrease of cardiac output. Histamine is a major mediator released by mast cells in allergic inflammation and response. It causes a cascade of inflammation and strongly increases vascular permeability within minutes through its four G-protein-coupled receptors (GPCRs) on endothelial cells. High mobility group box-1 (HMGB1), a nonhistone chromatin-binding nuclear protein, can be actively secreted into the extracellular space by endothelial cells. HMGB1 has been reported to exert pro-inflammatory effects on endothelial cells and to increase vascular endothelial permeability. However, the relationship between histamine and HMGB1-mediated signaling in vascular endothelial cells and the role of HMGB1 in anaphylactic-induced hypotension have never been studied. Methods and results EA.hy 926 cells were treated with different concentrations of histamine for the indicated periods. The results showed that histamine induced HMGB1 translocation and release from the endothelial cells in a concentration- and time-dependent manner. These effects of histamine were concentration-dependently inhibited by d-chlorpheniramine, a specific H1 receptor antagonist, but not by H2 or H3/4 receptor antagonists. Moreover, an H1-specific agonist, 2-pyridylethylamine, mimicked the effects of histamine, whereas an H2-receptor agonist, 4-methylhistamine, did not. Adrenaline and noradrenaline, which are commonly used in the clinical treatment of anaphylactic shock, also inhibited the histamine-induced HMGB1 translocation in endothelial cells. We therefore established a rat model of allergic shock by i.v. injection of compound 48/80, a potent histamine-releasing agent. The plasma HMGB1 levels in compound 48/80-injected rats were higher than those in controls. Moreover, the treatment with anti-HMGB1 antibody successfully facilitated the recovery from compound 48/80-induced hypotension. Conclusion Histamine induces HMGB1 release from vascular endothelial cells solely through H1 receptor stimulation. Anti-HMGB1 therapy may provide a novel treatment for life-threatening systemic anaphylaxis.
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Affiliation(s)
- Shangze Gao
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Keyue Liu
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Wenhan Ku
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Dengli Wang
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hidenori Wake
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Handong Qiao
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kiyoshi Teshigawara
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masahiro Nishibori
- Department of Translational Research and Drug Development, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- *Correspondence: Masahiro Nishibori,
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Neumann J, Kirchhefer U, Dhein S, Hofmann B, Gergs U. The Roles of Cardiovascular H 2-Histamine Receptors Under Normal and Pathophysiological Conditions. Front Pharmacol 2022; 12:732842. [PMID: 34987383 PMCID: PMC8720924 DOI: 10.3389/fphar.2021.732842] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 11/02/2021] [Indexed: 12/11/2022] Open
Abstract
This review addresses pharmacological, structural and functional relationships among H2-histamine receptors and H1-histamine receptors in the mammalian heart. The role of both receptors in the regulation of force and rhythm, including their electrophysiological effects on the mammalian heart, will then be discussed in context. The potential clinical role of cardiac H2-histamine-receptors in cardiac diseases will be examined. The use of H2-histamine receptor agonists to acutely increase the force of contraction will be discussed. Special attention will be paid to the potential role of cardiac H2-histamine receptors in the genesis of cardiac arrhythmias. Moreover, novel findings on the putative role of H2-histamine receptor antagonists in treating chronic heart failure in animal models and patients will be reviewed. Some limitations in our biochemical understanding of the cardiac role of H2-histamine receptors will be discussed. Recommendations for further basic and translational research on cardiac H2-histamine receptors will be offered. We will speculate whether new knowledge might lead to novel roles of H2-histamine receptors in cardiac disease and whether cardiomyocyte specific H2-histamine receptor agonists and antagonists should be developed.
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Affiliation(s)
- Joachim Neumann
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Uwe Kirchhefer
- Institut für Pharmakologie und Toxikologie, Westfälische Wilhelms-Universität, Münster, Germany
| | - Stefan Dhein
- Landratsamt Altenburger Land, Altenburg, Germany
| | - Britt Hofmann
- Herzchirurgie, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Ulrich Gergs
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
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Huang J, Fan P, Liu M, Weng C, Fan G, Zhang T, Duan X, Wu Y, Tang L, Yang G, Liu Y. Famotidine promotes inflammation by triggering cell pyroptosis in gastric cancer cells. BMC Pharmacol Toxicol 2021; 22:62. [PMID: 34686215 PMCID: PMC8539739 DOI: 10.1186/s40360-021-00533-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 10/15/2021] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Cell pyroptosis has been characterized by cell swelling and pro-inflammatory factors release to aggravate inflammatory reaction., such as interlukin-1 beta (IL-1β) and interlukin18 (IL-18). However, the function of famotidine, an antagonist of histamine H2-receptor antagonists, in cell pyroptosis remained unknown. METHODS Real-time quantitative PCR (qPCR), western blotting (WB), LDH release assay and enzyme linked immunosorbent assay (Elisa) combined with inhibitor were performed to analyze the effect of famotidine on cell pyroptosis-related gene expression. RESULTS In this study, we found that famotidine (300 μm) treatment led to a phenomenon of cell pyroptosis as confirmed by LDH assay. Further results showed that famotidine triggered cell pyroptosis in gastric cancer cells by activation of NLPR3 inflammasomes including ASC, Caspase-1 and NLRP, leading to enhanced IL-18, not IL-1β, mature and secretion. What's more, the results also showed GSDME, not GSDMD, was increased in response to famotidine stimulation in BGC823 and AGS cells. Mechanically, phosphorylation of ERK1/2 was drastically enhanced in present with famotidine treatment, while inhibition of ERK1/2 activity by U0126 could reverse the promotion of famotidine in IL-18 secretion. CONCLUSION These findings revealed a novel role of famotidine in cell pyroptosis in patients with gastric cancer, a comprehensive consideration is needed in treatment of gastric cancer.
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Affiliation(s)
- Jin Huang
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China
| | - Pingsheng Fan
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China
| | - Miao Liu
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China
| | - Chengtao Weng
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China
| | - Gaofei Fan
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China
| | - Tengyue Zhang
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China
| | - Xiaohong Duan
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China
| | - Yang Wu
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China
| | - Lili Tang
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China
| | - Guohong Yang
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China
| | - Yabei Liu
- Department of Medical Oncology, the First affiliated Hospital of University of Science and Technology of China(West), Heifei, Anhui, China.
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Kennedy L, Meadows V, Sybenga A, Demieville J, Chen L, Hargrove L, Ekser B, Dar W, Ceci L, Kundu D, Kyritsi K, Pham L, Zhou T, Glaser S, Meng F, Alpini G, Francis H. Mast Cells Promote Nonalcoholic Fatty Liver Disease Phenotypes and Microvesicular Steatosis in Mice Fed a Western Diet. Hepatology 2021; 74:164-182. [PMID: 33434322 PMCID: PMC9271361 DOI: 10.1002/hep.31713] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND AIMS Nonalcoholic fatty liver disease (NAFLD) is simple steatosis but can develop into nonalcoholic steatohepatitis (NASH), characterized by liver inflammation, fibrosis, and microvesicular steatosis. Mast cells (MCs) infiltrate the liver during cholestasis and promote ductular reaction (DR), biliary senescence, and liver fibrosis. We aimed to determine the effects of MC depletion during NAFLD/NASH. APPROACH AND RESULTS Wild-type (WT) and KitW-sh (MC-deficient) mice were fed a control diet (CD) or a Western diet (WD) for 16 weeks; select WT and KitW-sh WD mice received tail vein injections of MCs 2 times per week for 2 weeks prior to sacrifice. Human samples were collected from normal, NAFLD, or NASH mice. Cholangiocytes from WT WD mice and human NASH have increased insulin-like growth factor 1 expression that promotes MC migration/activation. Enhanced MC presence was noted in WT WD mice and human NASH, along with increased DR. WT WD mice had significantly increased steatosis, DR/biliary senescence, inflammation, liver fibrosis, and angiogenesis compared to WT CD mice, which was significantly reduced in KitW-sh WD mice. Loss of MCs prominently reduced microvesicular steatosis in zone 1 hepatocytes. MC injection promoted WD-induced biliary and liver damage and specifically up-regulated microvesicular steatosis in zone 1 hepatocytes. Aldehyde dehydrogenase 1 family, member A3 (ALDH1A3) expression is reduced in WT WD mice and human NASH but increased in KitW-sh WD mice. MicroRNA 144-3 prime (miR-144-3p) expression was increased in WT WD mice and human NASH but reduced in KitW-sh WD mice and was found to target ALDH1A3. CONCLUSIONS MCs promote WD-induced biliary and liver damage and may promote microvesicular steatosis development during NAFLD progression to NASH through miR-144-3p/ALDH1A3 signaling. Inhibition of MC activation may be a therapeutic option for NAFLD/NASH treatment.
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Affiliation(s)
- Lindsey Kennedy
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Vik Meadows
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Amelia Sybenga
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, TN
| | - Jennifer Demieville
- Central Texas Veterans Health Care System, Texas A&M University College of Medicine, Bryan, TX
| | - Lixian Chen
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Laura Hargrove
- Department of Medical Physiology, Texas A&M University College of Medicine, Bryan, TX
| | - Burcin Ekser
- Department of Transplant Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Wasim Dar
- Division of Immunology and Organ Transplantation, Department of Surgery, University of Texas Health Science Center at Houston, Houston, TX
| | - Ludovica Ceci
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Debjyoti Kundu
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Konstantina Kyritsi
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Linh Pham
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Tianhao Zhou
- Department of Medical Physiology, Texas A&M University College of Medicine, Bryan, TX
| | - Shannon Glaser
- Department of Medical Physiology, Texas A&M University College of Medicine, Bryan, TX
| | - Fanyin Meng
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN,Richard L. Roudebush VA Medical Center, Indiana University School of Medicine, Indianapolis, IN
| | - Gianfranco Alpini
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN,Richard L. Roudebush VA Medical Center, Indiana University School of Medicine, Indianapolis, IN
| | - Heather Francis
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN,Richard L. Roudebush VA Medical Center, Indiana University School of Medicine, Indianapolis, IN
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Gergs U, Kirchhefer U, Bergmann F, Künstler B, Mißlinger N, Au B, Mahnkopf M, Wache H, Neumann J. Characterization of Stressed Transgenic Mice Overexpressing H 2-Histamine Receptors in the Heart. J Pharmacol Exp Ther 2020; 374:479-488. [PMID: 32561687 DOI: 10.1124/jpet.120.000063] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/16/2020] [Indexed: 11/22/2022] Open
Abstract
We studied transgenic mice with cardiac-specific overexpression of H2-histamine receptors (H2-TG) by using the α-myosin heavy-chain promoter. We wanted to address whether this overexpression would protect the heart against paradigmatic stressors. To this end, we studied isolated atrial preparations in an organ bath under normoxic and hypoxic conditions and after prolonged exposure to high histamine concentrations. Moreover, we assessed cardiac function using echocardiography in mice with cardiac hypertrophy due to overexpression of the catalytic subunit of PP2A (PP2A-TG) in the heart [H2-TG × PP2A-TG = double transgenic (DT)] or H2-TG with cardiac systolic failure due to treatment of mice with lipopolysaccharides (LPSs). Furthermore, the effect of ischemia and reperfusion was studied in isolated perfused hearts (Langendorff mode) of H2-TG. We detected evidence for the protective role of the overexpressed H2-histamine receptors in the contractile dysfunction of DT and isolated atrial preparations subjected to hypoxia. In contrast, we noted the detrimental role of H2-histamine receptor overexpression against ischemia (Langendorff perfusion) and LPS-induced systolic heart failure. Hence, the role of H2-histamine receptors in the heart is context-sensitive: the results differ between hypoxia (in atrium) and ischemia (perfused whole heart), as well as between genetically induced hypertrophy (DT) and toxin-induced heart failure (LPS). The underlying molecular mechanisms for the protective or detrimental roles of H2-histamine receptor overexpression in the mammalian heart remain to be elucidated. SIGNIFICANCE STATEMENT: The beneficial and detrimental effects of the cardiac effects of H2-histamine receptors in the heart under stressful conditions, here intended to mimic clinical situations, were studied. The data suggest that depending on the clinically underlying cardiac pathophysiological mechanisms, H2-histamine agonists or H2-histamine antagonists might merit further research efforts to improve clinical drug therapy.
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Affiliation(s)
- Ulrich Gergs
- Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany (U.G., F.B., B.K., N.M., B.A., M.M., H.W., J.N.) and Institut für Pharmakologie und Toxikologie, Westfälische Wilhelms-Universität, Münster, Germany (U.K.)
| | - Uwe Kirchhefer
- Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany (U.G., F.B., B.K., N.M., B.A., M.M., H.W., J.N.) and Institut für Pharmakologie und Toxikologie, Westfälische Wilhelms-Universität, Münster, Germany (U.K.)
| | - Fabian Bergmann
- Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany (U.G., F.B., B.K., N.M., B.A., M.M., H.W., J.N.) and Institut für Pharmakologie und Toxikologie, Westfälische Wilhelms-Universität, Münster, Germany (U.K.)
| | - Bernhard Künstler
- Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany (U.G., F.B., B.K., N.M., B.A., M.M., H.W., J.N.) and Institut für Pharmakologie und Toxikologie, Westfälische Wilhelms-Universität, Münster, Germany (U.K.)
| | - Natascha Mißlinger
- Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany (U.G., F.B., B.K., N.M., B.A., M.M., H.W., J.N.) and Institut für Pharmakologie und Toxikologie, Westfälische Wilhelms-Universität, Münster, Germany (U.K.)
| | - Bastian Au
- Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany (U.G., F.B., B.K., N.M., B.A., M.M., H.W., J.N.) and Institut für Pharmakologie und Toxikologie, Westfälische Wilhelms-Universität, Münster, Germany (U.K.)
| | - Mareen Mahnkopf
- Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany (U.G., F.B., B.K., N.M., B.A., M.M., H.W., J.N.) and Institut für Pharmakologie und Toxikologie, Westfälische Wilhelms-Universität, Münster, Germany (U.K.)
| | - Hartmut Wache
- Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany (U.G., F.B., B.K., N.M., B.A., M.M., H.W., J.N.) and Institut für Pharmakologie und Toxikologie, Westfälische Wilhelms-Universität, Münster, Germany (U.K.)
| | - Joachim Neumann
- Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany (U.G., F.B., B.K., N.M., B.A., M.M., H.W., J.N.) and Institut für Pharmakologie und Toxikologie, Westfälische Wilhelms-Universität, Münster, Germany (U.K.)
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Mohi-Ud-Din R, Mir RH, Sawhney G, Dar MA, Bhat ZA. Possible Pathways of Hepatotoxicity Caused by Chemical Agents. Curr Drug Metab 2020; 20:867-879. [PMID: 31702487 DOI: 10.2174/1389200220666191105121653] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/30/2019] [Accepted: 10/16/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Liver injury induced by drugs has become a primary reason for acute liver disease and therefore posed a potential regulatory and clinical challenge over the past few decades and has gained much attention. It also remains the most common cause of failure of drugs during clinical trials. In 50% of all acute liver failure cases, drug-induced hepatoxicity is the primary factor and 5% of all hospital admissions. METHODS The various hepatotoxins used to induce hepatotoxicity in experimental animals include paracetamol, CCl4, isoniazid, thioacetamide, erythromycin, diclofenac, alcohol, etc. Among the various models used to induce hepatotoxicity in rats, every hepatotoxin causes toxicity by different mechanisms. RESULTS The drug-induced hepatotoxicity caused by paracetamol accounts for 39% of the cases and 13% hepatotoxicity is triggered by other hepatotoxic inducing agents. CONCLUSION Research carried out and the published papers revealed that hepatotoxins such as paracetamol and carbon- tetrachloride are widely used for experimental induction of hepatotoxicity in rats.
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Affiliation(s)
- Roohi Mohi-Ud-Din
- Department of Pharmaceutical Sciences, University of Kashmir, Pharmacognosy Division, Hazratbal, Srinagar 190006, Kashmir, India
| | - Reyaz Hassan Mir
- Pharmaceutical Chemistry Division, Department of Pharmaceutical Sciences, University of Kashmir, Hazratbal, Srinagar 190006, Kashmir, India
| | - Gifty Sawhney
- Inflammation Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu-Tawi, Jammu 180001, India
| | - Mohd Akbar Dar
- Pharmaceutical Chemistry Division, Department of Pharmaceutical Sciences, University of Kashmir, Hazratbal, Srinagar 190006, Kashmir, India
| | - Zulfiqar Ali Bhat
- Department of Pharmaceutical Sciences, University of Kashmir, Pharmacognosy Division, Hazratbal, Srinagar 190006, Kashmir, India
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Histamine modulates hippocampal inflammation and neurogenesis in adult mice. Sci Rep 2019; 9:8384. [PMID: 31182747 PMCID: PMC6558030 DOI: 10.1038/s41598-019-44816-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 05/24/2019] [Indexed: 01/30/2023] Open
Abstract
Evidence points to a dual role of histamine in microglia-mediated neuroinflammation, a key pathological feature of several neurodegenerative pathologies. Moreover, histamine has been suggested as a modulator of adult neurogenesis. Herein, we evaluated the effect of histamine in hippocampal neuroinflammation and neurogenesis under physiological and inflammatory contexts. For that purpose, mice were intraperitoneally challenged with lipopolysaccharide (LPS) followed by an intrahippocampal injection of histamine. We showed that histamine per se triggered glial reactivity and induced mild long-term impairments in neurogenesis, reducing immature neurons dendritic volume and complexity. Nevertheless, in mice exposed to LPS (2 mg/Kg), histamine was able to counteract LPS-induced glial activation and release of pro-inflammatory molecules as well as neurogenesis impairment. Moreover, histamine prevented LPS-induced loss of immature neurons complexity as well as LPS-induced loss of both CREB and PSD-95 proteins (essential for proper neuronal activity). Altogether, our results highlight histamine as a potential therapeutic agent to treat neurological conditions associated with hippocampal neuroinflammation and neurodegeneration.
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Barata-Antunes S, Cristóvão AC, Pires J, Rocha SM, Bernardino L. Dual role of histamine on microglia-induced neurodegeneration. Biochim Biophys Acta Mol Basis Dis 2017; 1863:764-769. [PMID: 28057587 DOI: 10.1016/j.bbadis.2016.12.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 12/16/2016] [Accepted: 12/29/2016] [Indexed: 12/17/2022]
Abstract
Several hypotheses have been raised about the dual role of histamine in neurological disorders, and evidences have shown its crucial involvement in the modulation of microglia-mediated neuroinflammation. Previously, we reported that the administration of histamine induces a deleterious effect by promoting a pro-inflammatory phenotype on microglia that in turn compromises dopaminergic neuronal survival. Contrary, under lipopolysaccharide challenge, histamine inhibits the injurious effect of microglia-mediated inflammation, protecting dopaminergic neurons, suggesting that the modulation of microglial activity is dependent on the environmental context. Thus, histamine and/or histamine receptor agonists may serve to develop new therapeutic approaches to overcome neurodegenerative disorders.
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Affiliation(s)
- S Barata-Antunes
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - A C Cristóvão
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - J Pires
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - S M Rocha
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - L Bernardino
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.
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9
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Yoshizumi Y, Yukawa H, Iwaki R, Fujinaka S, Kanou A, Kanou Y, Yamada T, Nakagawa S, Ohara T, Nakagiri K, Ogihara Y, Tsutsui Y, Hayashi Y, Ishigami M, Baba Y, Ishikawa T. Immunomodulatory Effects of Adipose Tissue-Derived Stem Cells on Concanavalin A-Induced Acute Liver Injury in Mice. CELL MEDICINE 2016; 9:21-33. [PMID: 28174672 DOI: 10.3727/215517916x693159] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cell therapy with adipose tissue-derived stem cells (ASCs) is expected to be a candidate for the treatment of fulminant hepatic failure (FHF), which is caused by excessive immune responses. In order to evaluate the therapeutic effects of ASCs on FHF, the in vitro and in vivo immunomodulatory effects of ASCs were examined in detail in the mouse model. The in vitro effects of ASCs were examined by assessing their influence on the proliferation of lymphomononuclear cells (LMCs) stimulated with three kinds of mitogens: phorbol 12-myristate 13-acetate (PMA) plus ionomycin, concanavalin A (ConA), and lipopolysaccharide (LPS). The proliferation of LMCs was efficiently suppressed in a dose-dependent manner by ASCs in the cases of PMA plus ionomycin stimulation and ConA stimulation, but not in the case of LPS stimulation. The in vivo effects of transplanted ASCs were examined in the murine FHF model induced by ConA administration. The ALT levels and histological inflammatory changes in the ConA-administered mice were apparently relieved by the transplantation of ASCs. The analysis of mRNA expression patterns in the livers indicated that the expressions of the cytokines such as Il-6, Il-10, Ifn-γ, and Tnf-α, and the cell surface markers such as Cd3γ, Cd4, Cd8α, Cd11b, and Cd11c were downregulated in the ASC-transplanted mice. The immunomodulatory and therapeutic effects of ASCs were confirmed in the mouse model both in vitro and in vivo. These suggest that the cell therapy with ASCs is beneficial for the treatment of FHF.
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Affiliation(s)
- Yasuma Yoshizumi
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Hiroshi Yukawa
- †ImPACT Research Center for Innovative Nanobiodevices, Nagoya University, Chikusa-ku, Nagoya, Japan; ‡Department of Applied Chemistry, Nagoya University Graduate School of Engineering, Chikusa-ku, Nagoya, Japan
| | - Ryoji Iwaki
- § Kinuura-Tobu Health Care Center , Kariya , Japan
| | - Sanae Fujinaka
- ¶ Department of Clinical Laboratories, Aichi Cancer Center Hospital , Chikusa-ku, Nagoya , Japan
| | - Ayano Kanou
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Yuki Kanou
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Tatsuya Yamada
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Shingo Nakagawa
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Tomomi Ohara
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Kenta Nakagiri
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Yusuke Ogihara
- ‡ Department of Applied Chemistry, Nagoya University Graduate School of Engineering , Chikusa-ku, Nagoya , Japan
| | - Yoko Tsutsui
- † ImPACT Research Center for Innovative Nanobiodevices, Nagoya University , Chikusa-ku, Nagoya , Japan
| | - Yumi Hayashi
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Masatoshi Ishigami
- # Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine , Showa-ku, Nagoya , Japan
| | - Yoshinobu Baba
- †ImPACT Research Center for Innovative Nanobiodevices, Nagoya University, Chikusa-ku, Nagoya, Japan; ‡Department of Applied Chemistry, Nagoya University Graduate School of Engineering, Chikusa-ku, Nagoya, Japan
| | - Tetsuya Ishikawa
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
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10
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ELF4 is critical for induction of type I interferon and the host antiviral response. Nat Immunol 2013; 14:1237-46. [PMID: 24185615 DOI: 10.1038/ni.2756] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Accepted: 10/01/2013] [Indexed: 12/25/2022]
Abstract
Induction of type I interferon is a central event of innate immunity, essential for host defense. Here we report that the transcription factor ELF4 is induced by type I interferon and upregulates interferon expression in a feed-forward loop. ELF4 deficiency leads to reduced interferon production, resulting in enhanced susceptibility to West Nile virus encephalitis in mice. After viral infection, ELF4 is recruited by STING, interacts with and is activated by the MAVS-TBK1 complex, and translocates into the nucleus to bind interferon promoters. Cooperative binding with ELF4 increases the binding affinity of interferon regulatory factors IRF3 and IRF7, which is mediated by EICE elements. Thus, in addition to identifying a regulator of innate immune signaling, we uncovered a role for EICE elements in interferon transactivation.
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11
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Neumann D, Schneider EH, Seifert R. Analysis of Histamine Receptor Knockout Mice in Models of Inflammation. J Pharmacol Exp Ther 2013; 348:2-11. [DOI: 10.1124/jpet.113.204214] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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12
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Takahashi H, Sadamori H, Teshigawara K, Niwa A, Liu K, Wake H, Mori S, Yoshino T, Nishibori M. Histamine inhibits high mobility group box 1-induced adhesion molecule expression on human monocytes. Eur J Pharmacol 2013; 718:305-13. [PMID: 24012904 DOI: 10.1016/j.ejphar.2013.08.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Revised: 08/28/2013] [Accepted: 08/29/2013] [Indexed: 10/26/2022]
Abstract
Cell-cell interaction through binding of adhesion molecules on monocytes to their ligands on T-cells plays roles in cytokine production and lymphocyte proliferation. High mobility group box 1 (HMGB1), an abundant and conserved nuclear protein, acts in the extracellular environment as a primary pro-inflammatory signal. HMGB1 induces expression of intercellular adhesion molecule (ICAM), B7.1, B7.2 and CD40 on monocytes, resulting in production of interferon (IFN)-γ and tumor necrosis factor (TNF)-α production and lymphocyte proliferation in human peripheral blood mononuclear cells (PBMCs). Histamine inhibits pro-inflammatory cytokine production via histamine H2-receptors; however, it is not known whether histamine inhibits HMGB1 activity. This study was designed to study the inhibitory effect of histamine on HMGB1 activity. We examined the effect of histamine on HMGB1-induced expression of ICAM-1, B7.1, B7.2 and CD40 on monocytes, production of IFN-γ and TNF-α and lymphocyte proliferation in PBMCs. Histamine inhibited HMGB1 activity in a concentration-dependent manner. The effects of histamine were partially ablated by the H2-receptor antagonist, famotidine, and mimicked by the H2/H4-receptor agonists, dimaprit and 4-methylhistamine. Histamine induced cyclic adenosine monophosphate (cAMP) production in the presence and absence of HMGB1. The effects of histamine were reversed by the protein kinase A (PKA) inhibitor, H89, and mimicked by the membrane-permeable cAMP analog, dibutyryl cAMP (dbcAMP), and the adenylate cyclase activator, forskolin. These results together indicated that histamine inhibited HMGB1 activity.
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Affiliation(s)
- Hideo Takahashi
- Department of Pharmacology, Kinki University, Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan.
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13
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Saligrama N, Noubade R, Case LK, del Rio R, Teuscher C. Combinatorial roles for histamine H1-H2 and H3-H4 receptors in autoimmune inflammatory disease of the central nervous system. Eur J Immunol 2012; 42:1536-46. [PMID: 22678907 DOI: 10.1002/eji.201141859] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system in which histamine (HA) and its receptors have been implicated in disease pathogenesis. HA exerts its effects through four different G protein-coupled receptors designated H(1)-H(4). We previously examined the effects of traditional single HA receptor (HR) knockouts (KOs) in experimental allergic encephalomyelitis (EAE), the autoimmune model of MS. Our results revealed that H(1) R and H(2) R are propathogenic, while H(3) R and H(4) R are antipathogenic. This suggests that combinatorial targeting of HRs may be an effective disease-modifying therapy (DMT) in MS. To test this hypothesis, we generated H(1) H(2) RKO and H(3) H(4) RKO mice and studied them for susceptibility to EAE. Compared with wild-type (WT) mice, H(1) H(2) RKO mice developed a less severe clinical disease course, whereas the disease course of H(3) H(4) RKO mice was more severe. H(1) H(2) RKO mice also developed less neuropathology and disrupted blood brain barrier permeability compared with WT and H(3) H(4) RKO mice. Additionally, splenocytes from immunized H(1) H(2) RKO mice produced less interferon(IFN)-γ and interleukin(IL)-17. These findings support the concept that combined pharmacological targeting of HRs may be an appropriate ancillary DMT in MS and other immunopathologic diseases.
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Affiliation(s)
- Naresha Saligrama
- Department of Medicine, University of Vermont, Burlington, Vermont 05405, USA
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14
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H(1)R expression by CD11B(+) cells is not required for susceptibility to experimental allergic encephalomyelitis. Cell Immunol 2012; 278:27-34. [PMID: 23121973 DOI: 10.1016/j.cellimm.2012.06.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 06/08/2012] [Accepted: 06/29/2012] [Indexed: 01/03/2023]
Abstract
The histamine H(1) receptor (Hrh1/H(1)R) was identified as an autoimmune disease gene in experimental allergic encephalomyelitis (EAE), the principal autoimmune model of multiple sclerosis (MS). Previously, we showed that selective re-expression of H(1)R by endothelial cells or T cells in H(1)RKO mice significantly reduced or complemented EAE severity and cytokine responses, respectively. H(1)R regulates innate immune cells, which in turn influences peripheral and central nervous system CD4(+) T cell effector responses. Therefore, we selectively re-expressed H(1)R in CD11b(+) cells of H(1)RKO mice to test the hypothesis that H(1)R signaling in these cells contributes to EAE susceptibility. We demonstrate that transgenic re-expression of H(1)R by H(1)RKO-CD11b(+) cells neither complements EAE susceptibility nor T cell cytokine responses highlighting the cell-specific effects of Hrh1 in the pathogenesis of EAE and MS, and the need for cell-specific targeting in optimizing therapeutic interventions based on such genes.
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15
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Abstract
Liver enzymes, including aminotransferases and alkaline phosphatase, are some of the most commonly ordered blood tests in a physician's practice. These enzymes have been valuable in screening for liver disease, as well as in diagnosing and monitoring patients with acute and chronic hepatobiliary disorders. Patients with predominantly aminotransferase elevations are thought to have acute or chronic hepatitis from a variety of causes. In patients with predominantly alkaline phosphatase elevations, imaging evaluation is undertaken upfront to exclude large bile duct disorders and infiltrative/mass lesions. A liver biopsy may be reserved for patients for whom these less invasive investigations are unfruitful.
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Affiliation(s)
- Tae Hoon Lee
- Department of Internal Medicine, Marshall University, 1249 15th Street, Huntington, WV 25701, USA
| | - W. Ray Kim
- Division of Gastroenterology and Hepatology (PL 6), Mayo Clinic College of Medicine, 200 1st Street Southwest, Rochester, MN 55905, USA,Corresponding author.
| | - John J. Poterucha
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, 200 1st Street Southwest, Rochester, MN 55905, USA
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16
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Smuda C, Wechsler JB, Bryce PJ. TLR-induced activation of neutrophils promotes histamine production via a PI3 kinase dependent mechanism. Immunol Lett 2011; 141:102-8. [PMID: 21903133 DOI: 10.1016/j.imlet.2011.08.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 08/23/2011] [Accepted: 08/23/2011] [Indexed: 10/17/2022]
Abstract
Histamine is a bioactive amine that exerts immunomodulatory functions, including many allergic symptoms. It is preformed and stored in mast cells and basophils but recent evidence suggests that other cell types produce histamine in an inducible fashion. During infection, it has been suggested that neutrophils may produce histamine. We also observed that histamine is released in a neutrophil-mediated LPS-induced model of acute lung injury. Therefore, we sought to examine whether innate signals promote histamine production by neutrophils. Bone marrow-derived neutrophils stimulated with a range of TLR agonists secreted histamine in response to LPS or R837, suggesting TLR4 or TLR7 are important. LPS-driven histamine was enhanced by coculture with GM-CSF and led to a transient release of histamine that peaked at 8h post stimulation. This was dependent upon de novo synthesis of histamine, since cells derived from histidine decarboxylase (HDC) deficient mice were unable to produce histamine but did generate reactive oxygen species upon stimulation. Using pharmacological inhibitors, we show that histamine production requires PI3 kinase, which has been shown to regulate other neutrophil functions, including activation and selective granule release. However, unlike mast cells, HDC deficiency did not alter the granule structure of neutrophils, suggesting that histamine does not participate in granule integrity in these cells. Consequently, our findings establish that neutrophils generate histamine in response to a select panel of innate immune triggers and that this might contribute to acute lung injury responses.
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Affiliation(s)
- Craig Smuda
- Department of Microbiology-Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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17
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Strain differences in concanavalin a-induced paw edema in the rat: Involvement of histamine H1 and H2 receptors. ACTA VET-BEOGRAD 2011. [DOI: 10.2298/avb1103119k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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18
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Induction of histidine decarboxylase in macrophages inhibited by the novel NF-κB inhibitor (−)-DHMEQ. Biochem Biophys Res Commun 2009; 379:379-83. [DOI: 10.1016/j.bbrc.2008.12.065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2008] [Accepted: 12/12/2008] [Indexed: 12/18/2022]
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19
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Mori S, Takahashi HK, Nishibori M. [Inducible histamine protects mice from hepatitis through H2-receptor stimulation]. YAKUGAKU ZASSHI 2008; 128:247-53. [PMID: 18239372 DOI: 10.1248/yakushi.128.247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Histamine is well known for its roles in allergic diseases and anaphylaxis through H(1)-receptor stimulation. The H(1)-receptor stimulation by histamine results in an increase in vascular permeability, vasodilatation, and stimulation of nerve terminals in primary sensory neurons, thereby accelerating the inflammatory responses. On the other hand, histamine has been demonstrated to be involved in the regulation of innate and acquired immune responses through H(2)-receptors. In a previous study with human peripheral blood mononuclear cells, we observed that histamine exerts various regulatory effects on monocyte/macrophage function. In this review, we discuss how inducible histamine protects mice from lethal hepatitis, induced by heat-killed P.acnes (1 mg, i.v.) followed by challenge with a low dose of lipopolysaccharide (1 microg), by reducing the excessive cytokine response in the liver. In addition, from in vivo studies with histidine decarboxylase knockout and H(1)-, H(2)-receptor knockout mice, the protective effect of histamine against fulminant hepatitis is shown to be elicited through H(2)-receptor stimulation.
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Affiliation(s)
- Shuji Mori
- School of Pharmacy, Shujitsu University, Okayama City, Japan
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20
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Sugata Y, Okano M, Fujiwara T, Matsumoto R, Hattori H, Yamamoto M, Nishibori M, Nishizaki K. Histamine H4 receptor agonists have more activities than H4 agonism in antigen-specific human T-cell responses. Immunology 2007; 121:266-75. [PMID: 17346280 PMCID: PMC2265937 DOI: 10.1111/j.1365-2567.2007.02574.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Histamine not only mediates immediate allergic reactions, it also regulates cellular immune responses. H4R is the most recently identified histamine receptor (HR). In the present study, we examined the in vitro effect of histamine and H4R agonists on the responses of human T cells to purified protein derivative from Mycobacterium tuberculosis (PPD) and to Cry j1, the major allergen of Cryptomeria japonica pollen. Dimaprit, clobenpropit and clozapine, which are H4R agonists, dose-dependently blocked both PPD-induced interferon-gamma and Cry j1-induced interleukin-5 production by both peripheral blood mononuclear cells (PBMCs) and antigen-specific T-cell lines. However, the addition of thioperamide, an H3R/H4R antagonist, as well as a mixture of d-chlropheniramine, famotidine and thioperamide, did not reverse the inhibition. Pretreatment of PBMCs with SQ22536 and 8-bromoadenosine-3',5'-cyclic monophosphorothioate, Rp-isomer, had varying abilities to reverse the inhibitory effects of H4R agonists, except for clobenpropit. Moreover, the addition of H4R agonists induced annexin-V expression on PBMCs, especially in CD19(+) and CD4(+) cells. cDNA microarray analysis revealed that, among 16,600 genes tested, increased expression following treatment with clozapine was seen in 0 x 8% of the genes, whereas decreased expression was seen in 3 x 0% of the genes. These results suggest that H4R agonists inhibit antigen-specific human T-cell responses, although H4R does not appear to be important for this effect. In addition, the present study indicated that there may be orphan receptors or HR subtypes which can bind dimaprit, clobenpropit and clozapine, and that can exert an inhibitory effect on antigen-specific cellular responses via a cAMP/cAMP-dependent protein kinase-dependent, apoptotic pathway.
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MESH Headings
- Adenylyl Cyclases/physiology
- Allergens/immunology
- Antigens, Plant
- Apoptosis
- Cells, Cultured
- Epitopes, T-Lymphocyte/immunology
- Gene Expression/immunology
- Histamine/pharmacology
- Histamine Agonists/pharmacology
- Histamine Antagonists/pharmacology
- Humans
- Interferon-gamma/biosynthesis
- Interleukin-5/biosynthesis
- Oligonucleotide Array Sequence Analysis/methods
- Plant Proteins/immunology
- RNA, Messenger/genetics
- Receptors, G-Protein-Coupled/agonists
- Receptors, G-Protein-Coupled/immunology
- Receptors, Histamine/biosynthesis
- Receptors, Histamine/genetics
- Receptors, Histamine/immunology
- Receptors, Histamine H4
- T-Lymphocytes/drug effects
- T-Lymphocytes/immunology
- Tuberculin/immunology
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Affiliation(s)
- Yuji Sugata
- Department of Otolaryngology-Head & Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Mitsuhiro Okano
- Department of Otolaryngology-Head & Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Tazuko Fujiwara
- Department of Otolaryngology-Head & Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Rie Matsumoto
- Department of Otolaryngology-Head & Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Hisashi Hattori
- Department of Otolaryngology-Head & Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Miki Yamamoto
- Department of Otolaryngology-Head & Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Masahiro Nishibori
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Kazunori Nishizaki
- Department of Otolaryngology-Head & Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
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21
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Yokoyama A, Mori S, Takahashi HK, Kanke T, Wake H, Nishibori M. Effect of amodiaquine, a histamine N-methyltransferase inhibitor, on, Propionibacterium acnes and lipopolysaccharide-induced hepatitis in mice. Eur J Pharmacol 2007; 558:179-84. [PMID: 17222819 DOI: 10.1016/j.ejphar.2006.11.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2006] [Revised: 11/09/2006] [Accepted: 11/13/2006] [Indexed: 11/20/2022]
Abstract
We examined whether treatment with amodiaquine, a potent inhibitor of histamine N-methyltransferase protects mice from Propionibacterium acnes (P. acnes)-primed and lipopolysaccharide (LPS)-induced hepatitis. The subcutaneous injection of amodiaquine (2 and 5 mg/kg) significantly increased the histamine levels in the liver in comparison to saline treated mice. Pretreatment with amodiaquine also improved the survival rate of the hepatitis mice, and this improvement was partially associated with the decrease in serum levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT). Amodiaquine partially suppressed increases of tumor necrosis factor (TNF)-alpha in the serum and TNF-alpha mRNA expression in the liver, whereas the expression of interleukin (IL)-18, interferon (IFN)-gamma and IL-12 in the liver was not changed by amodiaquine treatment. In conclusion, the present findings suggested that the elevation of endogenous histamine by amodiaquine may thus play a protective role through the regulation of TNF-alpha production in endotoxin-induced hepatic injury mice.
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Affiliation(s)
- Akira Yokoyama
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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22
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Hirasawa N, Torigoe M, Ohgawara R, Murakami A, Ohuchi K. Involvement of MAP kinases in lipopolysaccharide-induced histamine production in RAW 264 cells. Life Sci 2006; 80:36-42. [PMID: 16978663 DOI: 10.1016/j.lfs.2006.08.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2006] [Revised: 08/08/2006] [Accepted: 08/16/2006] [Indexed: 01/16/2023]
Abstract
Roles of mitogen-activated protein (MAP) kinases in lipopolysaccharide (LPS)-induced production of histamine in the mouse macrophage-like cell line RAW 264 were analyzed. Incubation of RAW 264 cells in the presence of LPS increased histamine levels in the conditioned medium in a concentration- and time-dependent manner. The levels of histidine decarboxylase (HDC) mRNA and the 74-kDa HDC protein were also increased at 4 to 8 h and 8 to 12 h, respectively. LPS elicited the phosphorylation of p44/42 MAP kinase, p38 MAP kinase, and c-Jun N-terminal kinase (JNK). The MAP kinase-Erk kinase 1 inhibitor U0126 (0.1-10 microM) suppressed the LPS-induced phosphorylation of p44/42 MAP kinase, and inhibited the LPS-induced production of histamine and expression of the HDC mRNA and 74-kDa HDC protein in a concentration-dependent manner. The JNK inhibitor SP600125 (3-30 microM) suppressed the LPS-induced phosphorylation of c-Jun, and inhibited the LPS-induced production of histamine and expression of the HDC mRNA and 74-kDa protein in a concentration-dependent manner. Combined treatment with U0126 (0.3 microM) and SP600125 (10 microM) inhibited the LPS-induced production of histamine additively. The p38 MAP kinase inhibitor SB203580 (0.1-10 microM) partially inhibited the LPS-induced production of histamine. These findings suggest that LPS increases histamine production in RAW 264 cells by inducing the expression of the 74-kDa HDC protein, and that the LPS-induced expression of HDC is up-regulated at the transcriptional level by MAP kinases, especially p44 MAP kinase and JNK.
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Affiliation(s)
- Noriyasu Hirasawa
- Laboratory of Pathophysiological Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan.
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23
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Adachi N, Liu K, Motoki A, Nishibori M, Arai T. Suppression of ischemia/reperfusion liver injury by histamine H4 receptor stimulation in rats. Eur J Pharmacol 2006; 544:181-7. [PMID: 16860312 DOI: 10.1016/j.ejphar.2006.06.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2006] [Revised: 05/16/2006] [Accepted: 06/15/2006] [Indexed: 11/20/2022]
Abstract
Inflammatory reactions play an important role in ischemia/reperfusion injury in various organs. Since histamine is closely related to inflammatory reactions and immune responses, effects of postischemic administration of histaminergic ligands on ischemia-induced liver injury were examined in rats. Animals were subjected to warm ischemia for 30 min by occlusion of the left portal vein and hepatic artery under halothane anesthesia, and liver damage was evaluated by assessing plasma concentrations of transaminases after 24 h. Warm ischemia for 30 min provoked severe liver damage after 24 h, and the plasma concentrations of alanine transaminase (ALT) and aspartate transaminase (AST) were 8600 I.U./l and 13100 I.U./l, respectively. Subcutaneous injections of histamine twice, immediately and 6 h after reperfusion (20 mg/kg, each), alleviated liver damage. The plasma concentrations of ALT and AST in the histamine group were 35% and 24% of those in the control group, respectively. Neither mepyramine (3 mg/kg x 2), an H1 antagonist, nor cimetidine (15 mg/kg x 2), an H2 antagonist, affected the outcome in histamine-treated rats. However, thioperamide (5 mg/kg x 2), an H3/H4 antagonist, completely abolished the alleviation caused by histamine. Administration of dimaprit (1-10 mg/kg x 2), an H2/H4 agonist, mimicked the protective effect of histamine, and the effect of dimaprit is reversed by thioperamide, whereas neither H1 nor H2 antagonists altered the outcome caused by dimaprit. Clozapine (15 mg/kg x 2), an H4 agonist, also mimicked the protective effect of histamine. These findings indicate that stimulation of histamine H4 receptors after ischemic events prevents development of reperfusion injury in the liver.
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Affiliation(s)
- Naoto Adachi
- Department of Anesthesiology and Resuscitology, Ehime University Graduate School of Medicine, Shitsukawa, Touon-shi, Ehime 791-0295, Japan.
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24
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Takahashi HK, Watanabe T, Yokoyama A, Iwagaki H, Yoshino T, Tanaka N, Nishibori M. Cimetidine Induces Interleukin-18 Production through H2-Agonist Activity in Monocytes. Mol Pharmacol 2006; 70:450-3. [PMID: 16723495 DOI: 10.1124/mol.106.025890] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The present study demonstrates a possible mechanism for the improvement of gastrointestinal cancer patients' prognosis by the histamine receptor type 2 (H2R) antagonist cimetidine. This agent, but not the H2R antagonists ranitidine and famotidine, induced the production of an antitumor cytokine, interleukin (IL)-18, by human monocytes and dendritic cells (DC). In fact, ranitidine and famotidine antagonized cimetidine-induced IL-18 production. Cimetidine induced the activation of caspase-1, which is reported to modify immature IL-18 to mature/active IL-18, and the elevation of intracellular cAMP, leading to the activation of protein kinase A (PKA). The PKA inhibitor H89 abolished the IL-18 production induced by cimetidine. Moreover, the effects of cimetidine on IL-18 production were reproduced in peripheral blood mononuclear cells from wild-type mice, but not in those from H2R knockout mice. In conclusion, cimetidine, a partial agonist for H2R, has a pharmacological profile different from ranitidine and famotidine, possibly contributing to its antitumor activity on gastrointestinal cancers.
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Affiliation(s)
- Hideo Kohka Takahashi
- Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama 700-8558, Japan
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25
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Horton JR, Sawada K, Nishibori M, Cheng X. Structural basis for inhibition of histamine N-methyltransferase by diverse drugs. J Mol Biol 2005; 353:334-344. [PMID: 16168438 PMCID: PMC4021489 DOI: 10.1016/j.jmb.2005.08.040] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2005] [Revised: 08/11/2005] [Accepted: 08/18/2005] [Indexed: 12/17/2022]
Abstract
In mammals, histamine action is terminated through metabolic inactivation by histamine N-methyltransferase (HNMT) and diamine oxidase. In addition to three well-studied pharmacological functions, smooth muscle contraction, increased vascular permeability, and stimulation of gastric acid secretion, histamine plays important roles in neurotransmission, immunomodulation, and regulation of cell proliferation. The histamine receptor H1 antagonist diphenhydramine, the antimalarial drug amodiaquine, the antifolate drug metoprine, and the anticholinesterase drug tacrine (an early drug for Alzheimer's disease) are surprisingly all potent HNMT inhibitors, having inhibition constants in the range of 10-100nM. We have determined the structural mode of interaction of these four inhibitors with HNMT. Despite their structural diversity, they all occupy the histamine-binding site, thus blocking access to the enzyme's active site. Near the N terminus of HNMT, several aromatic residues (Phe9, Tyr15, and Phe19) adopt different rotamer conformations or become disordered in the enzyme-inhibitor complexes, accommodating the diverse, rigid hydrophobic groups of the inhibitors. The maximized shape complementarity between the protein aromatic side-chains and aromatic ring(s) of the inhibitors are responsible for the tight binding of these varied inhibitors.
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Affiliation(s)
- John R. Horton
- Department of Biochemistry Emory University School of Medicine, 1510 Clifton Road Atlanta, GA 30322, USA
| | - Ken Sawada
- Department of Biochemistry Emory University School of Medicine, 1510 Clifton Road Atlanta, GA 30322, USA
| | - Masahiro Nishibori
- Department of Pharmacology Okayama University Medical School, 2-5-1 Shikata-cho Okayama 700-5885, Japan
| | - Xiaodong Cheng
- Department of Biochemistry Emory University School of Medicine, 1510 Clifton Road Atlanta, GA 30322, USA
- Corresponding author
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