1
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Influence of PEG Chain Length of Functionalized Magnetic Nanoparticles on the Cytocompatibility and Immune Competence of Primary Murine Macrophages and Dendritic Cells. Int J Mol Sci 2023; 24:ijms24032565. [PMID: 36768890 PMCID: PMC9916475 DOI: 10.3390/ijms24032565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 01/31/2023] Open
Abstract
A major drawback of nanoparticles (NPs) for biomedical applications is their preferential phagocytosis in immune cells, which can be avoided by surface modifications like PEGylation. Nevertheless, examinations of different polyethylene glycol (PEG) chain lengths on the competence of immune cells as well as possible immunotoxic effects are still sparse. Therefore, primary murine macrophages and dendritic cells were generated and incubated with magnetic nanoporous silica nanoparticles (MNPSNPs) modified with different mPEG chains (2 kDa, 5 kDa, and 10 kDa). Cytotoxicity, cytokine release, and the formation of reactive oxygen species (ROS) were determined. Immune competence of both cell types was examined and uptake of MNPSNPs into macrophages was visualized. Concentrations up to 150 µg/mL MNPSNPs showed no effects on the metabolic activity or immune competence of both cell types. However, ROS significantly increased in macrophages incubated with larger PEG chains, while the concentration of cytokines (TNF-α and IL-6) did not indicate a proinflammatory process. Investigations on the uptake of MNPSNPs revealed no differences in the onset of internalization and the intensity of intracellular fluorescence. The study gives no indication for an immunotoxic effect of PEGylated MNPSNPs. Nevertheless, there is still a need for optimization regarding their internalization to ensure an efficient drug delivery.
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2
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Alcain J, Infante Cruz ADP, Barrientos G, Vanzulli S, Salamone G, Vermeulen M. Mechanisms of unconventional CD8 Tc2 lymphocyte induction in allergic contact dermatitis: Role of H3/H4 histamine receptors. Front Immunol 2022; 13:999852. [PMID: 36275674 PMCID: PMC9586454 DOI: 10.3389/fimmu.2022.999852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/14/2022] [Indexed: 11/13/2022] Open
Abstract
Histamine (HA) is a potent mediator that plays a central role in inflammation and allergy, acting through four G-protein-coupled receptors (i.e. H1–H4). HA is an accepted promoter of type 2 immunity in CD4+ T cells during hypersensitivity. Previously, we demonstrated that HA can promote antigen cross-presentation, inducing the activation of antigen-specific CD8+ T cells in an asthmatic murine model. Non-classical CD8+ T-cell profiles, such as Tc2 or Tc17, are associated with allergic disease persistence and chronicity. In this paper, we focus on the role of the H3 receptor (H3R) and the H4 receptor (H4R) in the development of allergic contact dermatitis. We were able to show that induction of the type 2 profiles associated with interleukin 13 production, both by CD4 and CD8 lymphocytes, depend on the interaction of HA with H3R and H4R. Blocking both receptors using the selective H3/H4 receptor antagonist thioperamide or the selective H4R ligand JNJ777120 reduces the inflammatory response, inducing an immunosuppressive profile associated with the increased proportion of FOXp3+ regulatory T lymphocytes and CD11b+Gr-1+ myeloid suppressor cells. Interestingly, in dendritic cells, only H4R blockade, and not H3R blockade, is capable of modulating most of the inflammatory effects observed in our model.
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Affiliation(s)
- Julieta Alcain
- Instituto de Medicina Experimental (IMEX), CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | | | - Gabriela Barrientos
- Laboratorio de Medicina Experimental, Hospital Alemán, Buenos Aires, Argentina
| | - Silvia Vanzulli
- Laboratorio de Anatomía Patológica, Instituto de Estudios Oncológicos, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Gabriela Salamone
- Instituto de Medicina Experimental (IMEX), CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
- Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Mónica Vermeulen
- Instituto de Medicina Experimental (IMEX), CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
- Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
- *Correspondence: Mónica Vermeulen,
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Ma X, Verweij EWE, Siderius M, Leurs R, Vischer HF. Identification of TSPAN4 as Novel Histamine H 4 Receptor Interactor. Biomolecules 2021; 11:1127. [PMID: 34439793 PMCID: PMC8394291 DOI: 10.3390/biom11081127] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 12/20/2022] Open
Abstract
The histamine H4 receptor (H4R) is a G protein-coupled receptor that is predominantly expressed on immune cells and considered to be an important drug target for various inflammatory disorders. Like most GPCRs, the H4R activates G proteins and recruits β-arrestins upon phosphorylation by GPCR kinases to induce cellular signaling in response to agonist stimulation. However, in the last decade, novel GPCR-interacting proteins have been identified that may regulate GPCR functioning. In this study, a split-ubiquitin membrane yeast two-hybrid assay was used to identify H4R interactors in a Jurkat T cell line cDNA library. Forty-three novel H4R interactors were identified, of which 17 have also been previously observed in MYTH screens to interact with other GPCR subtypes. The interaction of H4R with the tetraspanin TSPAN4 was confirmed in transfected cells using bioluminescence resonance energy transfer, bimolecular fluorescence complementation, and co-immunoprecipitation. Histamine stimulation reduced the interaction between H4R and TSPAN4, but TSPAN4 did not affect H4R-mediated G protein signaling. Nonetheless, the identification of novel GPCR interactors by MYTH is a starting point to further investigate the regulation of GPCR signaling.
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Affiliation(s)
| | | | | | | | - Henry F. Vischer
- Division of Medicinal Chemistry, Faculty of Science, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, 1081 HZ Amsterdam, The Netherlands; (X.M.); (E.W.E.V.); (M.S.); (R.L.)
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The Function of the Histamine H4 Receptor in Inflammatory and Inflammation-Associated Diseases of the Gut. Int J Mol Sci 2021; 22:ijms22116116. [PMID: 34204101 PMCID: PMC8200986 DOI: 10.3390/ijms22116116] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/31/2021] [Accepted: 06/03/2021] [Indexed: 02/07/2023] Open
Abstract
Histamine is a pleiotropic mediator involved in a broad spectrum of (patho)-physiological processes, one of which is the regulation of inflammation. Compounds acting on three out of the four known histamine receptors are approved for clinical use. These approved compounds comprise histamine H1-receptor (H1R) antagonists, which are used to control allergic inflammation, antagonists at H2R, which therapeutically decrease gastric acid release, and an antagonist at H3R, which is indicated to treat narcolepsy. Ligands at H4R are still being tested pre-clinically and in clinical trials of inflammatory diseases, including rheumatoid arthritis, asthma, dermatitis, and psoriasis. These trials, however, documented only moderate beneficial effects of H4R ligands so far. Nevertheless, pre-clinically, H4R still is subject of ongoing research, analyzing various inflammatory, allergic, and autoimmune diseases. During inflammatory reactions in gut tissues, histamine concentrations rise in affected areas, indicating its possible biological effect. Indeed, in histamine-deficient mice experimentally induced inflammation of the gut is reduced in comparison to that in histamine-competent mice. However, antagonists at H1R, H2R, and H3R do not provide an effect on inflammation, supporting the idea that H4R is responsible for the histamine effects. In the present review, we discuss the involvement of histamine and H4R in inflammatory and inflammation-associated diseases of the gut.
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Abstract
Asthma is a heterogeneous inflammatory disease of the airways that is associated with airway hyperresponsiveness and airflow limitation. Although asthma was once simply categorized as atopic or nonatopic, emerging analyses over the last few decades have revealed a variety of asthma endotypes that are attributed to numerous pathophysiological mechanisms. The classification of asthma by endotype is primarily routed in different profiles of airway inflammation that contribute to bronchoconstriction. Many asthma therapeutics target G protein-coupled receptors (GPCRs), which either enhance bronchodilation or prevent bronchoconstriction. Short-acting and long-acting β 2-agonists are widely used bronchodilators that signal through the activation of the β 2-adrenergic receptor. Short-acting and long-acting antagonists of muscarinic acetylcholine receptors are used to reduce bronchoconstriction by blocking the action of acetylcholine. Leukotriene antagonists that block the signaling of cysteinyl leukotriene receptor 1 are used as an add-on therapy to reduce bronchoconstriction and inflammation induced by cysteinyl leukotrienes. A number of GPCR-targeting asthma drug candidates are also in different stages of development. Among them, antagonists of prostaglandin D2 receptor 2 have advanced into phase III clinical trials. Others, including antagonists of the adenosine A2B receptor and the histamine H4 receptor, are in early stages of clinical investigation. In the past decade, significant research advancements in pharmacology, cell biology, structural biology, and molecular physiology have greatly deepened our understanding of the therapeutic roles of GPCRs in asthma and drug action on these GPCRs. This review summarizes our current understanding of GPCR signaling and pharmacology in the context of asthma treatment. SIGNIFICANCE STATEMENT: Although current treatment methods for asthma are effective for a majority of asthma patients, there are still a large number of patients with poorly controlled asthma who may experience asthma exacerbations. This review summarizes current asthma treatment methods and our understanding of signaling and pharmacology of G protein-coupled receptors (GPCRs) in asthma therapy, and discusses controversies regarding the use of GPCR drugs and new opportunities in developing GPCR-targeting therapeutics for the treatment of asthma.
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Affiliation(s)
- Stacy Gelhaus Wendell
- Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (S.G.W., C.Z.); Bioinformatics Institute, Agency for Science, Technology, and Research, Singapore (H.F.); and Department of Biological Sciences, National University of Singapore, and Center for Computational Biology, DUKE-NUS Medical School, Singapore (H.F.)
| | - Hao Fan
- Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (S.G.W., C.Z.); Bioinformatics Institute, Agency for Science, Technology, and Research, Singapore (H.F.); and Department of Biological Sciences, National University of Singapore, and Center for Computational Biology, DUKE-NUS Medical School, Singapore (H.F.)
| | - Cheng Zhang
- Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (S.G.W., C.Z.); Bioinformatics Institute, Agency for Science, Technology, and Research, Singapore (H.F.); and Department of Biological Sciences, National University of Singapore, and Center for Computational Biology, DUKE-NUS Medical School, Singapore (H.F.)
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6
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Tatarkiewicz J, Rzodkiewicz P, Żochowska M, Staniszewska A, Bujalska-Zadrożny M. New antihistamines - perspectives in the treatment of some allergic and inflammatory disorders. Arch Med Sci 2019; 15:537-553. [PMID: 30899308 PMCID: PMC6425212 DOI: 10.5114/aoms.2017.68534] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 03/13/2017] [Indexed: 12/29/2022] Open
Affiliation(s)
- Jan Tatarkiewicz
- Department of Pharmacodynamics, Centre for Preclinical Research and Technology, Medical University of Warsaw, Warsaw, Poland
| | - Przemysław Rzodkiewicz
- Department of Biochemistry and Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland
- Department of General and Experimental Pathology, Medical University of Warsaw, Warsaw, Poland
| | - Małgorzata Żochowska
- Department of Pharmacodynamics, Centre for Preclinical Research and Technology, Medical University of Warsaw, Warsaw, Poland
| | - Anna Staniszewska
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Warsaw, Poland
| | - Magdalena Bujalska-Zadrożny
- Department of Pharmacodynamics, Centre for Preclinical Research and Technology, Medical University of Warsaw, Warsaw, Poland
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Differential effects of functionally different histamine H 4 receptor ligands on acute irritant dermatitis in mice. Naunyn Schmiedebergs Arch Pharmacol 2018; 391:1387-1397. [PMID: 30145688 DOI: 10.1007/s00210-018-1553-x] [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: 05/14/2018] [Accepted: 07/31/2018] [Indexed: 10/28/2022]
Abstract
The anti-inflammatory effects of histamine H4 receptor (H4R) antagonists opened new therapeutic options for the treatment of inflammatory/allergic diseases, but the role of H4R in inflammation is far from being solved. Aim of the present study was to investigate the role of structurally related H4R ligands of the aminopyrimidine class with different efficacies and functionalities (neutral antagonist ST-994, partial agonist ST-1006, inverse agonist ST-1012, and partial inverse agonist ST-1124) on croton oil-induced ear edema and pruritus in mice. The H4R ligands were administered subcutaneously before topical application of croton oil. While ST-1006 and ST-1124 were ineffective at any dose tested (10-100 mg/kg), both ST-994 and ST-1012 (30 and 100 mg/kg) significantly reduced croton oil-induced ear edema. Moreover, ST-994, ST-1006, and ST-1124, but not ST-1012, significantly inhibited croton oil-induced ear pruritus at 30 mg/kg. In accordance with results obtained with the reference H4R antagonist JNJ7777120 (100 mg/kg), histological examination of inflamed ear tissue indicated that treatment with ST-994 (30 mg/kg) led to a significant reduction in the inflammatory severity score and in the number of eosinophils infiltrating the tissue, while the number of degranulated mast cells in inflamed tissues was increased in comparison with the number of intact mast cells. These data indicate that croton oil-induced ear inflammation and pruritus seem to be clearly, but variably, affected by the H4R ligands tested. The potential advantage of dual effect of the H4R neutral antagonist ST-994 has to be carefully considered as a new therapeutic approach to the treatment of inflammatory diseases.
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8
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Fukuyama T, Martel BC, Linder KE, Ehling S, Ganchingco JR, Bäumer W. Hypochlorous acid is antipruritic and anti-inflammatory in a mouse model of atopic dermatitis. Clin Exp Allergy 2017; 48:78-88. [DOI: 10.1111/cea.13045] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/10/2017] [Accepted: 09/21/2017] [Indexed: 12/27/2022]
Affiliation(s)
- T. Fukuyama
- Department of Molecular Biomedical Sciences; College of Veterinary Medicine; North Carolina State University; Raleigh NC USA
| | - B. C. Martel
- Department of Molecular Biomedical Sciences; College of Veterinary Medicine; North Carolina State University; Raleigh NC USA
| | - K. E. Linder
- Department of Population Health and Pathology; College of Veterinary Medicine; North Carolina State University; Raleigh NC USA
| | - S. Ehling
- Department of Molecular Biomedical Sciences; College of Veterinary Medicine; North Carolina State University; Raleigh NC USA
| | - J. R. Ganchingco
- Department of Molecular Biomedical Sciences; College of Veterinary Medicine; North Carolina State University; Raleigh NC USA
| | - W. Bäumer
- Department of Molecular Biomedical Sciences; College of Veterinary Medicine; North Carolina State University; Raleigh NC USA
- Department of Veterinary Medicine; Institute of Pharmacology and Toxicology; Freie Universität Berlin; Berlin Germany
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Mohamed AF, El-Yamany MF, El-Batrawy FA, Abdel-Aziz MT. JNJ7777120 Ameliorates Inflammatory and Oxidative Manifestations in a Murine Model of Contact Hypersensitivity via Modulation of TLR and Nrf2 Signaling. Inflammation 2017; 41:378-389. [DOI: 10.1007/s10753-017-0693-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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10
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Hattori Y, Seifert R. Pharmacological Characterization of Human Histamine Receptors and Histamine Receptor Mutants in the Sf9 Cell Expression System. Handb Exp Pharmacol 2017; 241:63-118. [PMID: 28233175 PMCID: PMC7120522 DOI: 10.1007/164_2016_124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A large problem of histamine receptor research is data heterogeneity. Various experimental approaches, the complex signaling pathways of mammalian cells, and the use of different species orthologues render it difficult to compare and interpret the published results. Thus, the four human histamine receptor subtypes were analyzed side-by-side in the Sf9 insect cell expression system, using radioligand binding assays as well as functional readouts proximal to the receptor activation event (steady-state GTPase assays and [35S]GTPγS assays). The human H1R was co-expressed with the regulators of G protein signaling RGS4 or GAIP, which unmasked a productive interaction between hH1R and insect cell Gαq. By contrast, functional expression of the hH2R required the generation of an hH2R-Gsα fusion protein to ensure close proximity of G protein and receptor. Fusion of hH2R to the long (GsαL) or short (GsαS) splice variant of Gαs resulted in comparable constitutive hH2R activity, although both G protein variants show different GDP affinities. Medicinal chemistry studies revealed profound species differences between hH1R/hH2R and their guinea pig orthologues gpH1R/gpH2R. The causes for these differences were analyzed by molecular modeling in combination with mutational studies. Co-expression of the hH3R with Gαi1, Gαi2, Gαi3, and Gαi/o in Sf9 cells revealed high constitutive activity and comparable interaction efficiency with all G protein isoforms. A comparison of various cations (Li+, Na+, K+) and anions (Cl-, Br-, I-) revealed that anions with large radii most efficiently stabilize the inactive hH3R state. Potential sodium binding sites in the hH3R protein were analyzed by expressing specific hH3R mutants in Sf9 cells. In contrast to the hH3R, the hH4R preferentially couples to co-expressed Gαi2 in Sf9 cells. Its high constitutive activity is resistant to NaCl or GTPγS. The hH4R shows structural instability and adopts a G protein-independent high-affinity state. A detailed characterization of affinity and activity of a series of hH4R antagonists/inverse agonists allowed first conclusions about structure/activity relationships for inverse agonists at hH4R. In summary, the Sf9 cell system permitted a successful side-by-side comparison of all four human histamine receptor subtypes. This chapter summarizes the results of pharmacological as well as medicinal chemistry/molecular modeling approaches and demonstrates that these data are not only important for a deeper understanding of HxR pharmacology, but also have significant implications for the molecular pharmacology of GPCRs in general.
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Affiliation(s)
- Yuichi Hattori
- Department of Molecular and Medical Pharmacology, Graduate School of Medical and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Roland Seifert
- Institute of Pharmacology, Medical School of Hannover, Hannover, Germany
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Histamine type 1-receptor activation by low dose of histamine undermines human glomerular slit diaphragm integrity. Pharmacol Res 2016; 114:27-38. [DOI: 10.1016/j.phrs.2016.10.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 10/12/2016] [Accepted: 10/13/2016] [Indexed: 11/20/2022]
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12
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Wang M, Han J, Domenico J, Shin YS, Jia Y, Gelfand EW. Combined blockade of the histamine H1 and H4 receptor suppresses peanut-induced intestinal anaphylaxis by regulating dendritic cell function. Allergy 2016; 71:1561-1574. [PMID: 27059534 DOI: 10.1111/all.12904] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2016] [Indexed: 01/09/2023]
Abstract
BACKGROUND Signaling through histamine receptors on dendritic cells (DCs) may be involved in the effector phase of peanut-induced intestinal anaphylaxis. OBJECTIVES The objective of this study was to determine the role of histamine H1 (H1R) and H4 receptors (H4R) in intestinal allergic responses in a model of peanut allergy. METHODS Balb/c mice were sensitized and challenged with peanut. During the challenge phase, mice were treated orally with the H1R antagonist, loratadine, and/or the H4R antagonist, JNJ7777120. Bone marrow-derived DCs (BMDCs) were adoptively transferred to nonsensitized WT mice. Symptoms, intestinal inflammation, and mesenteric lymph node and intestine mucosal DCs were assessed. Effects of the drugs on DC chemotaxis, calcium mobilization, and antigen-presenting cell function were measured. RESULTS Treatment with loratadine or JNJ7777120 individually partially suppressed the development of diarrhea and intestinal inflammation and decreased the numbers of DCs in the mesenteric lymph nodes and lamina propria. Combined treatment with both drugs prevented the development of diarrhea and intestinal inflammation. In vitro, the combination suppressed DC antigen-presenting cell function to T helper cells and DC calcium mobilization and chemotaxis to histamine. CONCLUSION Blockade of both H1R and H4R in the challenge phase had additive effects in preventing the intestinal consequences of peanut sensitization and challenge. These effects were mediated through the limitation of mesenteric lymph node and intestinal DC accumulation and function. Identification of this histamine H1R/H4R-DC-CD4+ T-cell axis provides new insights into the development of peanut-induced intestinal allergic responses and for prevention and treatment of peanut allergy.
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Affiliation(s)
- M. Wang
- Division of Cell Biology; Department of Pediatrics; National Jewish Health; Denver CO USA
| | - J. Han
- Division of Cell Biology; Department of Pediatrics; National Jewish Health; Denver CO USA
| | - J. Domenico
- Division of Cell Biology; Department of Pediatrics; National Jewish Health; Denver CO USA
| | - Y. S. Shin
- Division of Cell Biology; Department of Pediatrics; National Jewish Health; Denver CO USA
| | - Y. Jia
- Division of Cell Biology; Department of Pediatrics; National Jewish Health; Denver CO USA
| | - E. W. Gelfand
- Division of Cell Biology; Department of Pediatrics; National Jewish Health; Denver CO USA
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13
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Ehling S, Roßbach K, Dunston SM, Stark H, Bäumer W. Allergic inflammation is augmented via histamine H4 receptor activation: The role of natural killer cells in vitro and in vivo. J Dermatol Sci 2016; 83:106-15. [PMID: 27155791 DOI: 10.1016/j.jdermsci.2016.04.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 04/18/2016] [Accepted: 04/22/2016] [Indexed: 01/28/2023]
Abstract
BACKGROUND Natural Killer cells (NK cells) are identified as pivotal mediators in allergic skin diseases and accumulate in lesions of atopic dermatitis (AD) patients. Histamine levels are increased in these lesions and histamine is involved in chemotaxis in dendritic cells and NK cells. OBJECTIVE The aim of this study was to determine if the histamine H4 receptor (H4R) mediates NK cell chemotaxis and whether it influences interplay between NK cells and dendritic cells during the early phase of allergic inflammation. METHODS Chemotactic function of the H4R as well as the influence of the H4R on the cytokine profile of an NK cell-dendritic cell co-culture was studied in vitro. The effect of H4R activation on NK cell migration, NK cell-dendritic cell interaction and cytokine levels in the skin was further characterized in the murine TDI model of allergic dermatitis. Additionally, the impact of the H4R on dermal NK cells was determined in the ovalbumin (OVA)- induced allergic dermatitis model, comparing wild type and H4R knockout mice. RESULTS The selective H4R agonist ST-1006 induced NK cell chemotaxis in vitro, which was inhibited with the H4R antagonist JNJ7777120. In vivo, mice treated with TDI plus ST-1006 topically onto the ear, showed significantly enhanced ear swelling and an increased number of NK cells compared to just allergen challenged ears. CCL17 levels in the ear were also significantly increased 8h after allergen challenge. Histology revealed that the main source for increased CCL17 were dendritic cells. These effects could be blocked using the H4R antagonist JNJ7777120. In the chronic model of allergic dermatitis, OVA induced NK cell migration into lesional skin sites. The number of NK cells was lower in OVA-sensitized H4R knockout mice compared to wild type mice. CONCLUSIONS These results identify the H4R as a new target controlling NK cell migration and NK cell-dendritic cell interaction in the skin during early allergic inflammation. These results further suggest that blocking the H4R in the skin might be beneficial in diseases like AD.
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MESH Headings
- Animals
- Chemokine CCL17/metabolism
- Chemotaxis/drug effects
- Coculture Techniques
- Dendritic Cells/drug effects
- Dendritic Cells/metabolism
- Dermatitis, Atopic/immunology
- Dermatitis, Atopic/metabolism
- Disease Models, Animal
- Female
- Histamine/metabolism
- Humans
- Indoles/pharmacology
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Knockout
- Ovalbumin
- Piperazines/pharmacology
- Pyrimidines/pharmacology
- Receptors, G-Protein-Coupled/agonists
- Receptors, G-Protein-Coupled/antagonists & inhibitors
- Receptors, G-Protein-Coupled/genetics
- Receptors, G-Protein-Coupled/metabolism
- Receptors, Histamine/genetics
- Receptors, Histamine/metabolism
- Receptors, Histamine H4
- Skin/cytology
- Skin/drug effects
- Skin/metabolism
- Toluene 2,4-Diisocyanate/toxicity
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Affiliation(s)
- Sarah Ehling
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, NC, USA; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA.
| | - Kristine Roßbach
- University of Veterinary Medicine Hannover, Foundation, Institute of Pharmacology, Toxicology and Pharmacy, Hannover, Germany.
| | - Stanley M Dunston
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, NC, USA.
| | - Holger Stark
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich Heine Universität, Düsseldorf, Germany.
| | - Wolfgang Bäumer
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, NC, USA; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA.
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14
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Panula P, Chazot PL, Cowart M, Gutzmer R, Leurs R, Liu WLS, Stark H, Thurmond RL, Haas HL. International Union of Basic and Clinical Pharmacology. XCVIII. Histamine Receptors. Pharmacol Rev 2016; 67:601-55. [PMID: 26084539 DOI: 10.1124/pr.114.010249] [Citation(s) in RCA: 362] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Histamine is a developmentally highly conserved autacoid found in most vertebrate tissues. Its physiological functions are mediated by four 7-transmembrane G protein-coupled receptors (H1R, H2R, H3R, H4R) that are all targets of pharmacological intervention. The receptors display molecular heterogeneity and constitutive activity. H1R antagonists are long known antiallergic and sedating drugs, whereas the H2R was identified in the 1970s and led to the development of H2R-antagonists that revolutionized stomach ulcer treatment. The crystal structure of ligand-bound H1R has rendered it possible to design new ligands with novel properties. The H3R is an autoreceptor and heteroreceptor providing negative feedback on histaminergic and inhibition on other neurons. A block of these actions promotes waking. The H4R occurs on immuncompetent cells and the development of anti-inflammatory drugs is anticipated.
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Affiliation(s)
- Pertti Panula
- Department of Anatomy, and Neuroscience Center, University of Helsinki, Finland (P.P.); School of Biological and Biomedical Sciences, University of Durham, United Kingdom (P.L.C.); AbbVie, Inc. North Chicago, Illinois (M.C.); Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany (R.G.); Department of Medicinal Chemistry, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, The Netherlands (R.L.); Ziarco Pharma Limited, Canterbury, United Kingdom (W.L.S.L.); Institute of Pharmaceutical and Medical Chemistry and Institute of Neurophysiology, Medical Faculty, Westfalische-Wilhelms-University, Muenster, Germany (H.L.H.); Heinrich-Heine-University Duesseldorf, Germany (H.S.); and Janssen Research & Development, LLC, San Diego, California (R.L.T.)
| | - Paul L Chazot
- Department of Anatomy, and Neuroscience Center, University of Helsinki, Finland (P.P.); School of Biological and Biomedical Sciences, University of Durham, United Kingdom (P.L.C.); AbbVie, Inc. North Chicago, Illinois (M.C.); Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany (R.G.); Department of Medicinal Chemistry, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, The Netherlands (R.L.); Ziarco Pharma Limited, Canterbury, United Kingdom (W.L.S.L.); Institute of Pharmaceutical and Medical Chemistry and Institute of Neurophysiology, Medical Faculty, Westfalische-Wilhelms-University, Muenster, Germany (H.L.H.); Heinrich-Heine-University Duesseldorf, Germany (H.S.); and Janssen Research & Development, LLC, San Diego, California (R.L.T.)
| | - Marlon Cowart
- Department of Anatomy, and Neuroscience Center, University of Helsinki, Finland (P.P.); School of Biological and Biomedical Sciences, University of Durham, United Kingdom (P.L.C.); AbbVie, Inc. North Chicago, Illinois (M.C.); Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany (R.G.); Department of Medicinal Chemistry, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, The Netherlands (R.L.); Ziarco Pharma Limited, Canterbury, United Kingdom (W.L.S.L.); Institute of Pharmaceutical and Medical Chemistry and Institute of Neurophysiology, Medical Faculty, Westfalische-Wilhelms-University, Muenster, Germany (H.L.H.); Heinrich-Heine-University Duesseldorf, Germany (H.S.); and Janssen Research & Development, LLC, San Diego, California (R.L.T.)
| | - Ralf Gutzmer
- Department of Anatomy, and Neuroscience Center, University of Helsinki, Finland (P.P.); School of Biological and Biomedical Sciences, University of Durham, United Kingdom (P.L.C.); AbbVie, Inc. North Chicago, Illinois (M.C.); Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany (R.G.); Department of Medicinal Chemistry, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, The Netherlands (R.L.); Ziarco Pharma Limited, Canterbury, United Kingdom (W.L.S.L.); Institute of Pharmaceutical and Medical Chemistry and Institute of Neurophysiology, Medical Faculty, Westfalische-Wilhelms-University, Muenster, Germany (H.L.H.); Heinrich-Heine-University Duesseldorf, Germany (H.S.); and Janssen Research & Development, LLC, San Diego, California (R.L.T.)
| | - Rob Leurs
- Department of Anatomy, and Neuroscience Center, University of Helsinki, Finland (P.P.); School of Biological and Biomedical Sciences, University of Durham, United Kingdom (P.L.C.); AbbVie, Inc. North Chicago, Illinois (M.C.); Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany (R.G.); Department of Medicinal Chemistry, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, The Netherlands (R.L.); Ziarco Pharma Limited, Canterbury, United Kingdom (W.L.S.L.); Institute of Pharmaceutical and Medical Chemistry and Institute of Neurophysiology, Medical Faculty, Westfalische-Wilhelms-University, Muenster, Germany (H.L.H.); Heinrich-Heine-University Duesseldorf, Germany (H.S.); and Janssen Research & Development, LLC, San Diego, California (R.L.T.)
| | - Wai L S Liu
- Department of Anatomy, and Neuroscience Center, University of Helsinki, Finland (P.P.); School of Biological and Biomedical Sciences, University of Durham, United Kingdom (P.L.C.); AbbVie, Inc. North Chicago, Illinois (M.C.); Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany (R.G.); Department of Medicinal Chemistry, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, The Netherlands (R.L.); Ziarco Pharma Limited, Canterbury, United Kingdom (W.L.S.L.); Institute of Pharmaceutical and Medical Chemistry and Institute of Neurophysiology, Medical Faculty, Westfalische-Wilhelms-University, Muenster, Germany (H.L.H.); Heinrich-Heine-University Duesseldorf, Germany (H.S.); and Janssen Research & Development, LLC, San Diego, California (R.L.T.)
| | - Holger Stark
- Department of Anatomy, and Neuroscience Center, University of Helsinki, Finland (P.P.); School of Biological and Biomedical Sciences, University of Durham, United Kingdom (P.L.C.); AbbVie, Inc. North Chicago, Illinois (M.C.); Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany (R.G.); Department of Medicinal Chemistry, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, The Netherlands (R.L.); Ziarco Pharma Limited, Canterbury, United Kingdom (W.L.S.L.); Institute of Pharmaceutical and Medical Chemistry and Institute of Neurophysiology, Medical Faculty, Westfalische-Wilhelms-University, Muenster, Germany (H.L.H.); Heinrich-Heine-University Duesseldorf, Germany (H.S.); and Janssen Research & Development, LLC, San Diego, California (R.L.T.)
| | - Robin L Thurmond
- Department of Anatomy, and Neuroscience Center, University of Helsinki, Finland (P.P.); School of Biological and Biomedical Sciences, University of Durham, United Kingdom (P.L.C.); AbbVie, Inc. North Chicago, Illinois (M.C.); Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany (R.G.); Department of Medicinal Chemistry, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, The Netherlands (R.L.); Ziarco Pharma Limited, Canterbury, United Kingdom (W.L.S.L.); Institute of Pharmaceutical and Medical Chemistry and Institute of Neurophysiology, Medical Faculty, Westfalische-Wilhelms-University, Muenster, Germany (H.L.H.); Heinrich-Heine-University Duesseldorf, Germany (H.S.); and Janssen Research & Development, LLC, San Diego, California (R.L.T.)
| | - Helmut L Haas
- Department of Anatomy, and Neuroscience Center, University of Helsinki, Finland (P.P.); School of Biological and Biomedical Sciences, University of Durham, United Kingdom (P.L.C.); AbbVie, Inc. North Chicago, Illinois (M.C.); Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany (R.G.); Department of Medicinal Chemistry, Amsterdam Institute of Molecules, Medicines and Systems, VU University Amsterdam, The Netherlands (R.L.); Ziarco Pharma Limited, Canterbury, United Kingdom (W.L.S.L.); Institute of Pharmaceutical and Medical Chemistry and Institute of Neurophysiology, Medical Faculty, Westfalische-Wilhelms-University, Muenster, Germany (H.L.H.); Heinrich-Heine-University Duesseldorf, Germany (H.S.); and Janssen Research & Development, LLC, San Diego, California (R.L.T.)
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15
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Rossbach K, Schaper K, Kloth C, Gutzmer R, Werfel T, Kietzmann M, Bäumer W. Histamine H4 receptor knockout mice display reduced inflammation in a chronic model of atopic dermatitis. Allergy 2016; 71:189-97. [PMID: 26440543 DOI: 10.1111/all.12779] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND The histamine H4 receptor (H4R) was brought into focus as a new therapeutic target for the treatment of allergic disorders such as atopic dermatitis (AD). H4R antagonists have already been tested in several animal models of AD, but these studies have yielded conflicting results. MATERIAL AND METHODS The development of ovalbumin-induced AD-like skin lesions was analysed in H4R(-/-) mice and in H4R antagonist (JNJ28307474)-treated mice. RESULTS H4R(-/-) mice showed a clear amelioration of the skin lesions, with a diminished influx of inflammatory cells and a reduced epidermal hyperproliferation at lesional skin sites. H4R(-/-) mice had a reduced amount of ovalbumin-specific IgE, a reduced number of splenocytes and lymph node cells with a decreased number of CD4+ T cells. The H4R modulated the cytokine secretion of CD4+ T cells and splenocytes and altered the cellular profile in the lymph nodes. The anti-inflammatory effect could only partially be mimicked by JNJ28307474 and only when the H4R antagonist was given during sensitization and challenge and not when JNJ28307474 was only given during the provocation phase of the allergic reaction. CONCLUSION The H4R modulates inflammation in a chronic allergic dermatitis setting. However, results of this study indicate that it is necessary to block the H4R during ontogeny and development of the allergic inflammation.
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Affiliation(s)
- K. Rossbach
- Institute for Pharmacology, Toxicology and Pharmacy; University of Veterinary Medicine; Hannover Germany
| | - K. Schaper
- Division of Immunodermatology and Allergy Research; Department of Dermatology and Allergy; Hannover Medical School; Hannover Germany
| | - Ch. Kloth
- Institute for Pharmacology; Hannover Medical School; Hannover Germany
| | - R. Gutzmer
- Division of Immunodermatology and Allergy Research; Department of Dermatology and Allergy; Hannover Medical School; Hannover Germany
| | - T. Werfel
- Division of Immunodermatology and Allergy Research; Department of Dermatology and Allergy; Hannover Medical School; Hannover Germany
| | - M. Kietzmann
- Institute for Pharmacology, Toxicology and Pharmacy; University of Veterinary Medicine; Hannover Germany
| | - W. Bäumer
- Institute for Pharmacology, Toxicology and Pharmacy; University of Veterinary Medicine; Hannover Germany
- Department of Molecular Biomedical Sciences; College of Veterinary Medicine; NC State University; Raleigh NC USA
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16
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Mocking TAM, Bosma R, Rahman SN, Verweij EWE, McNaught-Flores DA, Vischer HF, Leurs R. Molecular Aspects of Histamine Receptors. HISTAMINE RECEPTORS 2016. [DOI: 10.1007/978-3-319-40308-3_1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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17
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De Benedetto A, Yoshida T, Fridy S, Park JES, Kuo IH, Beck LA. Histamine and Skin Barrier: Are Histamine Antagonists Useful for the Prevention or Treatment of Atopic Dermatitis? J Clin Med 2015; 4:741-55. [PMID: 26239353 PMCID: PMC4470164 DOI: 10.3390/jcm4040741] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 03/30/2015] [Accepted: 04/01/2015] [Indexed: 01/02/2023] Open
Abstract
Atopic Dermatitis (AD), the most common chronic inflammatory skin disease, is characterized by an overactive immune response to a host of environmental allergens and dry, itchy skin. Over the past decade important discoveries have demonstrated that AD develops in part from genetic and/or acquired defects in the skin barrier. Histamine is an aminergic neurotransmitter involved in physiologic and pathologic processes such as pruritus, inflammation, and vascular leak. Enhanced histamine release has been observed in the skin of patients with AD and antihistamines are often prescribed for their sedating and anti-itch properties. Recent evidence suggests that histamine also inhibits the terminal differentiation of keratinocytes and impairs the skin barrier, raising the question whether histamine might play a role in AD barrier impairment. This, coupled with the notion that histamine’s effects mediated through the recently identified histamine receptor H4R, may be important in allergic inflammation, has renewed interest in this mediator in allergic diseases. In this paper we summarize the current knowledge on histamine and histamine receptor antagonists in AD and skin barrier function.
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Affiliation(s)
- Anna De Benedetto
- Department of Dermatology, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Takeshi Yoshida
- Department of Dermatology, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Sade Fridy
- Department of Dermatology, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Joo-Eun S Park
- Department of Dermatology, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - I-Hsin Kuo
- Department of Dermatology, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Lisa A Beck
- Department of Dermatology, University of Rochester Medical Center, Rochester, NY 14642, USA.
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18
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Thurmond RL. The histamine H4 receptor: from orphan to the clinic. Front Pharmacol 2015; 6:65. [PMID: 25873897 PMCID: PMC4379874 DOI: 10.3389/fphar.2015.00065] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 03/12/2015] [Indexed: 01/10/2023] Open
Abstract
The histamine H4 receptor (H4R) was first noted as a sequence in genomic databases that had features of a class A G-protein coupled receptor. This putative receptor was found to bind histamine consistent with its homology to other histamine receptors and thus became the fourth member of the histamine receptor family. Due to the previous success of drugs that target the H1 and H2 receptors, an effort was made to understand the function of this new receptor and determine if it represented a viable drug target. Taking advantage of the vast literature on the function of histamine, a search for histamine activity that did not appear to be mediated by the other three histamine receptors was undertaken. From this asthma and pruritus emerged as areas of particular interest. Histamine has long been suspected to play a role in the pathogenesis of asthma, but antihistamines that target the H1 and H2 receptors have not been shown to be effective for this condition. The use of selective ligands in animal models of asthma has now potentially filled this gap by showing a role for the H4R in mediating lung function and inflammation. A similar story exists for chronic pruritus associated with conditions such as atopic dermatitis. Antihistamines that target the H1 receptor are effective in reducing acute pruritus, but are ineffective in pruritus experienced by patients with atopic dermatitis. As for asthma, animal models have now suggested a role for the H4R in mediating pruritic responses, with antagonists of the H4R reducing pruritus in a number of different conditions. The anti-pruritic effect of H4R antagonists has recently been shown in human clinical studies, validating the preclinical findings in the animal models. A selective H4R antagonist inhibited histamine-induced pruritus in health volunteers and reduced pruritus in patients with atopic dermatitis. The history to date of the H4R provides an excellent example of the deorphanization of a novel receptor and the translation of this into clinical efficacy in humans.
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19
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Histamine receptor expression in human renal tubules: a comparative pharmacological evaluation. Inflamm Res 2015; 64:261-70. [PMID: 25725698 DOI: 10.1007/s00011-015-0807-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 02/08/2015] [Accepted: 02/19/2015] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE AND DESIGN The aim of this study is to evaluate the expression of the histamine receptors, particularly focusing on the H4R in human renal tubules. MATERIAL The ex vivo evaluation was carried on specimens from human renal cortex. Primary and immortalized tubular epithelial cells (TECs) and the HK-2 cell line were used as in vitro models. TREATMENT Cells were pretreated for 10 min with chlorpheniramine maleate 10 μM (H1R antagonist), ranitidine 10 µM (H2R antagonist), GSK189254 1 µM (H3R antagonist) or JNJ7777120 10 µM (H4R antagonist), and then exposed to histamine (3 pM-10 nM) for 30 min. METHODS The ex vivo evaluation on specimens from human renal cortex was performed by immunohistochemistry. The expression of histamine receptors on primary and immortalized TECs and the HK-2 cell line was evaluated at both gene (RT-PCR) and protein (immunocytofluorescence) levels. The pharmacological analysis was performed by TR-FRET measurements of second messenger (IP3 and cAMP) production induced by histamine with or without the selective antagonists. RESULTS Our data revealed the presence of all histamine receptors in human tubules; however, only TECs expressed all the receptors. Indeed, histamine elicited a sigmoid dose-response curve for IP3 production, shifted to the right by chlorpheniramine maleate, and elicited a double bell-shaped curve for cAMP production, partially suppressed by the selective H2R, H3R and H4R antagonists when each added alone, and completely ablated when combined together. CONCLUSIONS Herein, we report the identification of all four histamine receptors in human renal tubules.
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Abstract
Histamine is one of the best-characterized pruritogens in humans. It is known to play a role in pruritus associated with urticaria as well as ocular and nasal allergic reactions. Histamine mediates its effect via four receptors. Antihistamines that block the activation of the histamine H₁receptor, H₁R, have been shown to be effective therapeutics for the treatment of pruritus associated with urticaria, allergic rhinitis, and allergic conjunctivitis. However, their efficacy in other pruritic diseases such as atopic dermatitis and psoriasis is limited. The other histamine receptors may also play a role in pruritus, with the exception of the histamine H₂receptor, H₂R. Preclinical evidence indicates that local antagonism of the histamine H₃receptor, H₃R, can induce scratching perhaps via blocking inhibitory neuronal signals. The histamine H₄receptor, H₄R, has received a significant amount of attention as to its role in mediating pruritic signals. Indeed, it has now been shown that a selective H₄R antagonist can inhibit histamine-induced itch in humans. This clinical result, in conjunction with efficacy in various preclinical pruritus models, points to the therapeutic potential of H₄R antagonists for the treatment of pruritus not controlled by antihistamines that target the H₁R.
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Affiliation(s)
- Robin L Thurmond
- Janssen Research and Development, L.L.C., San Diego, CA, 92121, USA,
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21
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Alkan M, Machavoine F, Rignault R, Dam J, Dy M, Thieblemont N. Histidine Decarboxylase Deficiency Prevents Autoimmune Diabetes in NOD Mice. J Diabetes Res 2015; 2015:965056. [PMID: 26090474 PMCID: PMC4452174 DOI: 10.1155/2015/965056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/13/2015] [Accepted: 04/15/2015] [Indexed: 12/31/2022] Open
Abstract
Recent evidence has highlighted the role of histamine in inflammation. Since this monoamine has also been strongly implicated in the pathogenesis of type-1 diabetes, we assessed its effect in the nonobese diabetic (NOD) mouse model. To this end, we used mice (inactivated) knocked out for the gene encoding histidine decarboxylase, the unique histamine-forming enzyme, backcrossed on a NOD genetic background. We found that the lack of endogenous histamine in NOD HDC(-/-) mice decreased the incidence of diabetes in relation to their wild-type counterpart. Whereas the proportion of regulatory T and myeloid-derived suppressive cells was similar in both strains, histamine deficiency was associated with increased levels of immature macrophages, as compared with wild-type NOD mice. Concerning the cytokine pattern, we found a decrease in circulating IL-12 and IFN-γ in HDC(-/-) mice, while IL-6 or leptin remained unchanged, suggesting that histamine primarily modulates the inflammatory environment. Paradoxically, exogenous histamine given to NOD HDC(-/-) mice provided also protection against T1D. Our study supports the notion that histamine is involved in the pathogenesis of diabetes, thus providing additional evidence for its role in the regulation of the immune response.
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Affiliation(s)
- Manal Alkan
- Université Paris Descartes, 75014 Paris, France
- CNRS UMR 8147, Hôpital Necker, 75015 Paris, France
- CNRS UMR 8104, Cochin Institute, 75014 Paris, France
- INSERM U1016, Cochin Institute, 75014 Paris, France
- Center of Excellence, LABEX Inflamex, 75014 Paris, France
| | - François Machavoine
- Université Paris Descartes, 75014 Paris, France
- CNRS UMR 8147, Hôpital Necker, 75015 Paris, France
| | - Rachel Rignault
- Université Paris Descartes, 75014 Paris, France
- CNRS UMR 8147, Hôpital Necker, 75015 Paris, France
| | - Julie Dam
- Université Paris Descartes, 75014 Paris, France
- CNRS UMR 8104, Cochin Institute, 75014 Paris, France
- INSERM U1016, Cochin Institute, 75014 Paris, France
| | - Michel Dy
- Université Paris Descartes, 75014 Paris, France
- CNRS UMR 8147, Hôpital Necker, 75015 Paris, France
| | - Nathalie Thieblemont
- Université Paris Descartes, 75014 Paris, France
- CNRS UMR 8147, Hôpital Necker, 75015 Paris, France
- CNRS UMR 8104, Cochin Institute, 75014 Paris, France
- INSERM U1016, Cochin Institute, 75014 Paris, France
- Center of Excellence, LABEX Inflamex, 75014 Paris, France
- *Nathalie Thieblemont:
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22
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Ahmad SF, Zoheir KMA, Abdel-Hamied HE, Alrashidi I, Attia SM, Bakheet SA, Ashour AE, Abd-Allah ARA. Role of a histamine 4 receptor as an anti-inflammatory target in carrageenan-induced pleurisy in mice. Immunology 2014; 142:374-83. [PMID: 24460575 DOI: 10.1111/imm.12257] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 01/15/2014] [Accepted: 01/20/2014] [Indexed: 12/21/2022] Open
Abstract
The histamine 4 receptor (H4R) is expressed primarily on cells involved in inflammation and immune responses. Despite much research into inflammatory diseases, no drugs with favourable safety profiles are yet available for their treatment. The aim of the present study was to determine the potential anti-inflammatory effect of 4-methylhistamine (4-MeH) or JNJ77777120 (JNJ) and to explore the role of H4R in a mouse model of carrageenan (Cg) -induced pleurisy. A single dose of 4-MeH or JNJ (30 mg/kg) was administered intraperitoneally 1 hr before Cg administration. The results illustrate that both the numbers of CD4(+) , CD25(+) , CD4(+) CD25(+) , GITR(+) , GITR(+) IL-17A(+) -expressing T cells and the levels of T helper type 1 (Th1)/Th17 cytokines were markedly increased in both the Cg-treated and 4-MeH-treated groups, whereas the cytokines produced by Th2 cells were significantly decreased in the same groups. However, JNJ treatment significantly decreased both the number of T-cell subsets and GITR(+) , GITR(+) IL-17A(+) -expressing T cells, and the production of Th1/Th17 cytokines. Further, JNJ up-regulated the expression of the Th2 cytokines. RT-PCR analysis revealed an increased expression of interleukin-1β, tumour necrosis factor-α, monocyte chemoattractant protein-1 and intercellular adhesion molecule-1 in the Cg-treated and 4-MeH-treated groups, which was reduced by treatment with JNJ in lung tissues. Moreover, histological examinations revealed anti-inflammatory effects of JNJ, whereas 4-MeH worsened Cg-induced inflammation. In conclusion, the results of the present work clearly indicate that JNJ possesses important anti-inflammatory properties that are increased in 4-MeH-treated mice, suggesting that H4R are involved in pleurisy and that JNJ has an anti-inflammatory effect in associated disease conditions.
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Affiliation(s)
- Sheikh Fayaz Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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23
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Schumacher S, Kietzmann M, Stark H, Bäumer W. Unique immunomodulatory effects of azelastine on dendritic cells in vitro. Naunyn Schmiedebergs Arch Pharmacol 2014; 387:1091-9. [PMID: 25119779 DOI: 10.1007/s00210-014-1033-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 08/04/2014] [Indexed: 01/17/2023]
Abstract
Allergic contact dermatitis and atopic dermatitis are among the most common inflammatory skin diseases in western countries, and antigen-presenting cells like dendritic cells (DC) are key players in their pathophysiology. Histamine, an important mediator of allergic reactions, influences DC maturation and cytokine secretion, which led us to investigate the immunomodulatory potential of the well-known histamine H1 receptor antagonists: azelastine, olopatadine, cetirizine, and pyrilamine. Unlike other H1 antihistamines, azelastine decreased lipopolysaccharide-induced tumor necrosis factor α and interleukin-12 secretion from murine bone marrow-derived DC. This effect was independent of histamine receptors H1, H2, or H4 and may be linked to inhibition of the nuclear factor kappa B pathway. Moreover, only azelastine reduced proliferation of allogenic T cells in a mixed leukocyte reaction. We then tested topical application of the H1 antihistamines on mice sensitized against toluene-2,4-diisocyanate, a model of Th2-mediated allergic contact dermatitis. In contrast to the in vitro results, all investigated substances were efficacious in reducing allergic ear swelling. Azelastine has unique effects on dendritic cells and T cell interaction in vitro. However, this did not translate into superior in vivo efficacy for Th2-mediated allergic dermatitis, possibly due to the effects of the antihistamines on other cell types involved in skin inflammation. Future research will have to clarify whether these properties are relevant to in vivo models of allergic inflammation with a different T cell polarization.
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Affiliation(s)
- S Schumacher
- Institute of Pharmacology, Toxicology and Pharmacy, University of Veterinary Medicine Hannover, Foundation, Bünteweg 17, Hannover, 30559, Germany,
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24
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Liu WL. Histamine H4 receptor antagonists for the treatment of inflammatory disorders. Drug Discov Today 2014; 19:1222-5. [DOI: 10.1016/j.drudis.2014.05.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 05/14/2014] [Indexed: 02/07/2023]
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25
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Wang Y, Jiang Y, Ikeda JI, Tian T, Sato A, Ohtsu H, Morii E. Roles of histamine on the expression of aldehyde dehydrogenase 1 in endometrioid adenocarcinoma cell line. Cancer Med 2014; 3:1126-35. [PMID: 25045085 PMCID: PMC4302664 DOI: 10.1002/cam4.296] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 05/11/2014] [Accepted: 06/11/2014] [Indexed: 01/06/2023] Open
Abstract
Cancer-initiating cells (CICs) are a limited number of cells that are essential for maintenance, recurrence, and metastasis of tumors. Aldehyde dehydrogenase 1 (ALDH1) has been recognized as a marker of CICs. We previously reported that ALDH1-high cases of uterine endometrioid adenocarcinoma showed poor prognosis, and that ALDH1 high population was more tumorigenic, invasive, and resistant to apoptosis than ALDH1 low population. Histamine plays a critical role in cancer cell proliferation, migration, and invasion. Here, we examined the effect of histamine on ALDH1 expression in endometrioid adenocarcinoma cell line. The addition of histamine increased ALDH1 high population, which was consistent with the result that histamine enhanced the invasive ability and the resistance to anticancer drug. Among 4 types of histamine receptors, histamine H1 and H2 receptor (H1R and H2R) were expressed in endometrioid adenocarcinoma cell line. The addition of H1R agonist but not H2R agonist increased ALDH1. The antagonist H1R but not H2R inhibited the effect of histamine on ALDH1 expression. These results indicated that histamine increased the expression of ALDH1 via H1R but not H2R. These findings may provide the evidence for exploring a new strategy to suppress CICs by inhibiting ALDH1 expression with histamine.
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Affiliation(s)
- Yi Wang
- Department of Pathology, Osaka University Graduate School of Medicine, Yamada-oka 2-2, Suita, 565-0871, Japan
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26
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Neumann D, Seifert R. The therapeutic potential of histamine receptor ligands in inflammatory bowel disease. Biochem Pharmacol 2014; 91:12-7. [PMID: 24929116 DOI: 10.1016/j.bcp.2014.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 06/04/2014] [Accepted: 06/04/2014] [Indexed: 12/12/2022]
Abstract
In the intestine of patients suffering from inflammatory bowel disease concentrations of histamine are increased compared to healthy controls. Genetic ablation of histamine production in mice ameliorates the course of experimentally induced colitis. These observations and first pharmacological studies indicate a function of histamine in the pathogenesis of inflammatory bowel disease. However, a closer examination reveals that available data are highly heterogeneous, limiting the rational design of strategies addressing specific histamine receptor subtypes as possible target for pharmacological interaction. However, very recently first clinical data indicate that antagonism at the histamine receptor subtype H4 provides a beneficial effect in at least the skin. Here, we discuss the available data on histamine effects and histamine receptor subtype functions in inflammatory bowel disease with a special emphasis on the histamine H4-receptor.
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Affiliation(s)
- Detlef Neumann
- Institute of Pharmacology, Hannover Medical School, Germany.
| | - Roland Seifert
- Institute of Pharmacology, Hannover Medical School, Germany
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Lamraoui A, Adi-Bessalem S, Laraba-Djebari F. Modulation of Tissue Inflammatory Response by Histamine Receptors in Scorpion Envenomation Pathogenesis: Involvement of H4 Receptor. Inflammation 2014; 37:1689-704. [DOI: 10.1007/s10753-014-9898-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Vasicek O, Lojek A, Jancinova V, Nosal R, Ciz M. Role of histamine receptors in the effects of histamine on the production of reactive oxygen species by whole blood phagocytes. Life Sci 2014; 100:67-72. [DOI: 10.1016/j.lfs.2014.01.082] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 01/10/2014] [Accepted: 01/30/2014] [Indexed: 10/25/2022]
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Smolinska S, Jutel M, Crameri R, O'Mahony L. Histamine and gut mucosal immune regulation. Allergy 2014; 69:273-81. [PMID: 24286351 DOI: 10.1111/all.12330] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2013] [Indexed: 11/28/2022]
Abstract
Histamine is a biogenic amine with extensive effects on many cell types, mediated by the activation of its four receptors (H1R-H4R). Distinct effects are dependent on receptor subtypes and their differential expression. Within the gastrointestinal tract, histamine is present at relatively high concentrations, particularly during inflammatory responses. In this review, we discuss the immunoregulatory influence of histamine on a number of gastrointestinal disorders, including food allergy, scombroid food poisoning, histamine intolerance, irritable bowel syndrome, and inflammatory bowel disease. It is clear that the effects of histamine on mucosal immune homeostasis are dependent on expression and activity of the four currently known histamine receptors; however, the relative protective or pathogenic effects of histamine on inflammatory processes within the gut are still poorly defined and require further investigation.
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Affiliation(s)
- S. Smolinska
- Department of Clinical Immunology; Wroclaw Medical University; Wroclaw Poland
- ‘ALL-MED’ Medical Research Institute; Wroclaw Poland
| | - M. Jutel
- Department of Clinical Immunology; Wroclaw Medical University; Wroclaw Poland
- ‘ALL-MED’ Medical Research Institute; Wroclaw Poland
| | - R. Crameri
- Swiss Institute of Allergy and Asthma Research; University of Zurich; Davos Switzerland
| | - L. O'Mahony
- Swiss Institute of Allergy and Asthma Research; University of Zurich; Davos Switzerland
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Mahapatra S, Albrecht M, Behrens B, Jirmo A, Behrens G, Hartwig C, Neumann D, Raap U, Bähre H, Herrick C, Dittrich AM. Delineating the role of histamine-1- and -4-receptors in a mouse model of Th2-dependent antigen-specific skin inflammation. PLoS One 2014; 9:e87296. [PMID: 24503582 PMCID: PMC3913588 DOI: 10.1371/journal.pone.0087296] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 12/23/2013] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Histamine drives pruritus in allergic skin diseases which clinically constitutes a most disruptive symptom. Skin pathology in allergic skin diseases is crucially influenced by different T-helper subsets. However, the contribution of different histamine-receptors to T-helper cell dependent skin pathology has not been definitively answered. Models which can specifically address the functional role of T-helper subsets and the mediators involved are therefore valuable to gain further insights into molecular pathways which contribute to allergic skin disease. They might also be helpful to probe amendable therapeutic interventions such as histamine-receptor antagonism. OBJECTIVE Establishing an adoptive transfer model for antigen-specific Th cells, we aimed to delineate the role of histamine H1- and H4-receptors in Th2-dependent skin inflammation. METHODS In-vitro differentiated and OVA primed Th2 cells were adoptively transferred into congenic recipient mice. In vivo treatment with specific histamine H1- and H4-receptor antagonists was performed to analyze the contribution of these histamine-receptors to Th2-dependent skin pathology in our model. Analysis four days after epicutaneous challenge comprised skin histology, flow cytometric detection of transferred T-helper cells and analysis of antigen-cytokine profiles in skin-draining lymph nodes. RESULTS Use of specific H1- and H4-receptor antagonists revealed a crucial role for H1- and H4-receptors for Th2 migration and cytokine secretion in a Th2-driven model of skin inflammation. While H1- and H4-receptor antagonists both reduced Th2 recruitment to the site of challenge, local cytokine responses in skin-draining lymph nodes were only reduced by the combined application of H1- and H4-receptor antagonists and mast cell counts remained altogether unchanged by either H1R-, H4R- or combined antagonism. CONCLUSION Our model demonstrates a role for H1- and H4-receptors in Th2 cell infiltration and cytokine secretion in allergic skin diseases and suggests further studies to evaluate these findings for therapeutic approaches.
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Affiliation(s)
- Subhashree Mahapatra
- Department for Pediatric Pneumology, Allergology and Neonatology, Medical School Hannover, Hannover, Germany
| | - Melanie Albrecht
- Department for Pediatric Pneumology, Allergology and Neonatology, Medical School Hannover, Hannover, Germany
| | - Barbara Behrens
- Department for Pediatric Pneumology, Allergology and Neonatology, Medical School Hannover, Hannover, Germany
| | - Adan Jirmo
- Department of Clinical Immunology and Rheumatology, Medical School Hannover, Hannover, Germany
| | - Georg Behrens
- Department of Clinical Immunology and Rheumatology, Medical School Hannover, Hannover, Germany
| | - Christina Hartwig
- Institute of Pharmacology, Medical School Hannover, Hannover, Germany
| | - Detlef Neumann
- Institute of Pharmacology, Medical School Hannover, Hannover, Germany
| | - Ulrike Raap
- Department of Dermatology and Allergy, Medical School Hannover, Hannover, Germany
| | - Heike Bähre
- Institute of Pharmacology, Medical School Hannover, Hannover, Germany
| | - Christina Herrick
- Department of Dermatology, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Anna-Maria Dittrich
- Department for Pediatric Pneumology, Allergology and Neonatology, Medical School Hannover, Hannover, Germany
- * E-mail:
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Czerner CP, Klos A, Seifert R, Neumann D. Histamine induces chemotaxis and phagocytosis in murine bone marrow-derived macrophages and RAW 264.7 macrophage-like cells via histamine H4-receptor. Inflamm Res 2013; 63:239-47. [PMID: 24316866 DOI: 10.1007/s00011-013-0694-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 11/21/2013] [Accepted: 11/26/2013] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE Expression and function of histamine H4-receptor, an immunomodulatory receptor involved in inflammatory diseases, on murine macrophages, which are vital for immunity, were investigated. MATERIALS AND METHODS The expression pattern of histamine receptors on bone marrow-derived macrophages of BALB/c mice and on RAW 264.7 cells was studied at the mRNA level by reverse transcription polymerase chain reaction. The functional relevance of histamine receptors was investigated by analyzing histamine-induced chemotaxis and phagocytosis in the presence of histamine receptor antagonists mepyramine (histamine H1-receptor), famotidine (histamine H2-receptor), thioperamide (histamine H3/4-receptors) and JNJ7777120 (histamine H4-receptor). RESULTS Both bone marrow-derived macrophages and RAW 264.7 cells express mRNA for histamine H1-receptor and histamine H4-receptor. Residual amounts of histamine H2-receptor mRNA are found in bone marrow-derived macrophages only. In both cellular models, histamine induced chemotaxis and phagocytic activity, which was reduced by thioperamide as well as by JNJ 7777120, but not by mepyramine or famotidine. CONCLUSION In murine bone marrow-derived macrophages and RAW 264.7 macrophage-like cells histamine H4-receptor mediates chemotaxis and phagocytic activity.
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Affiliation(s)
- Christoph P Czerner
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
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Geyer R, Kaske M, Baumeister P, Buschauer A. Synthesis and functional characterization of imbutamine analogs as histamine H3 and H4 receptor ligands. Arch Pharm (Weinheim) 2013; 347:77-88. [PMID: 24493592 DOI: 10.1002/ardp.201300316] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 09/11/2013] [Accepted: 09/12/2013] [Indexed: 11/07/2022]
Abstract
Imbutamine (4-(1H-imidazol-4-yl)butanamine) is a potent histamine H3 (H3R) and H4 receptor (H4R) agonist (EC50 values: 3 and 66 nM, respectively). Aiming at improved selectivity for the H4R, the imidazole ring in imbutamine was methyl-substituted or replaced by various differently substituted heterocycles (1,2,3-triazoles, 1,2,4-triazoles, pyridines, pyrimidines) as potential bioisosteres. Investigations in [(35)S]GTPγS binding assays using membranes of Sf9 insect cells expressing the respective human histamine receptor subtype revealed only very weak activity of most of the synthesized hetarylalkylamines at both receptors. By contrast, the introduction of substituents at the 4-imidazolyl ring was most effective regarding H4R selectivity. This holds for methyl substitution in position 2 and, especially, in position 5. 5-Methylimbutamine (H4R: EC50 = 59 nM, α = 0.8) was equipotent with imbutamine at the hH4R, but revealed about 16-fold selectivity for the hH4R compared to the hH3R (EC50 980 nM, α = 0.36), whereas imbutamine preferred the hH3R. The functional activities were in agreement with radioligand binding data. The results support the hypothesis that, by analogy with histamine, methyl substitution in histamine homologs offers a way to shift the selectivity in favor of the H4R.
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Affiliation(s)
- Roland Geyer
- Faculty of Chemistry and Pharmacy, Department of Pharmaceutical/Medicinal Chemistry II, University of Regensburg, Regensburg, Germany
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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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Zhai RR, Jiang AP, Wang HB, Ma L, Ren XX, Jiang JF, Wu L, Wei JF, Wang JH. Histamine enhances HIV-1-induced modulation of dendritic cells to skew naïve T cell differentiation toward regulatory T cells. Virology 2013; 442:163-72. [DOI: 10.1016/j.virol.2013.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 03/02/2013] [Accepted: 04/12/2013] [Indexed: 11/15/2022]
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Abstract
INTRODUCTION Chronic pruritus (CP), defined as itch lasting for > 6 weeks, is a burdensome symptom of several different diseases, dermatological and systemic, with a high negative impact on the quality of life of patients. Given the manifold aetiologies of CP, therapy is often difficult. In recent years, however, novel substances have been developed for treatment of certain CP entities and identified targets. AREAS COVERED In this review, the authors present a survey of targets currently believed to be promising (H4R, IL-31, MOR, KOR, GRPR, NGF, NK-1R, TRP channels) and related investigational drugs that are in the preclinical or clinical stage of development. Some substances have already undergone clinical testing, but only one of them (nalfurafine) has been licensed so far. Many of them are most likely to exert their effects on the skin and interfere there with the cutaneous neurobiology of CP. EXPERT OPINION Currently, the most promising candidates for new therapeutic agents in CP are neurokinin-1 receptor antagonists and substances targeting the kappa- or mu-opioid receptor, or both. They have the potential to target the neuronal pathway of CP and are thus of interest for several CP entities. The goal for the coming years is to validate these concepts and move forward in developing new drugs for the therapy of CP.
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Affiliation(s)
- Heike Benecke
- University Medicine Göttingen, Center Nanoscale Microscopy and Molecular Physiology of the Brain, Humboldtallee 23, 37073 Göttingen, Germany
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Galeotti N, Sanna MD, Ghelardini C. Pleiotropic effect of histamine H4 receptor modulation in the central nervous system. Neuropharmacology 2013; 71:141-7. [PMID: 23583928 DOI: 10.1016/j.neuropharm.2013.03.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Revised: 02/15/2013] [Accepted: 03/21/2013] [Indexed: 01/07/2023]
Abstract
The histamine H4 receptor (H4R) is expressed primarily on cells involved in inflammation and immune responses. Recently, it has been reported the functional expression of H4R within neurons of the central nervous system, but their role has been poorly understood. The present study aimed to elucidate the physiopathological role of cerebral H4R in animal models by the intracerebroventricular administration of the H4R agonist VUF 8430 (20-40 μg per mouse). Selectivity of results was confirmed by the prevention of the effects produced by the H4R antagonist JNJ 10191584 (3-9 mg/kg p.o.). Neuronal H4R activation induced acute thermal antinociception, indicating that neuronal histamine H4R might be involved in the production of antinociception in the absence of an inflammatory process. An anxiolytic-like effect of intensity comparable to that exerted by diazepam, used as reference drug, was produced in the light-dark box test. VUF 8430 reversed the scopolamine-induced amnesia in the passive avoidance test and showed anorexant activity in food deprived mice. Conversely, the H4R activation did not modify the immobility time in the tail suspension test. Rotarod performance test was employed to demonstrate that the effects observed following the administration of VUF 8430 and JNJ 10191584 were not due to impaired motor function of animals. Furthermore, both compounds did not alter spontaneous mobility and exploratory activity in the hole board test. These results show the antinociceptive, antiamnesic, anxiolytic and anorexant effects induced by neuronal H4R agonism, suggesting that H4 modulators may have broader utility further the control of inflammatory and immune processes.
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Affiliation(s)
- Nicoletta Galeotti
- Department of Preclinical and Clinical Pharmacology, University of Florence, Viale G. Pieraccini 6, I-50139 Florence, Italy.
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Novak N, Peng WM, Bieber T, Akdis C. FcεRI stimulation promotes the differentiation of histamine receptor 1-expressing inflammatory macrophages. Allergy 2013; 68:454-61. [PMID: 23414213 DOI: 10.1111/all.12109] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2012] [Indexed: 02/01/2023]
Abstract
BACKGROUND Monocyte differentiation into dendritic cells or macrophages and recruitment to peripheral organs in chronic inflammatory diseases are directed by allergen challenge via FcεRI as well as the nature of soluble factors in the microenvironment. High-affinity receptor for IgE stimulation of effector cells results in the release of histamine, which acts on various histamine receptors (HR) 1-4, expressed by immune cells. METHODS We examined the effect of FcεRI stimulation of human monocytes on H1R expression and function of differentiating cells. The mRNA levels of H1R, H2R and histidine decarboxylase of differentiating cells were detected by quantitative real-time PCR. Expression of CD1c, CD11c, CD68 and CD163 was detected by flow cytometry. Amount of histamine, IL-6 and IL-12p70 in the cell culture was measured with the help of cytometric bead arrays or ELISA assays. Numbers of H1R-expressing macrophages were evaluated by immunofluorescence double staining of CD68 and H1R on human skin sections. RESULTS We demonstrated that FcεRI stimulation promotes the generation of H1R-expressing macrophage-like cells with enhanced histamine biosynthesis and H1R-mediated proinflammatory properties. Supporting our in vitro findings, high numbers of H1R-expressing CD68(pos) macrophages were detected in the dermis of atopic dermatitis (AD) skin lesions. CONCLUSION Our observations point to a close histamine-/HR-mediated activation of dermal macrophages, leading to modified cell differentiation and responsiveness via H1R, which might contribute to the aggravation of allergic skin inflammation in AD.
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Affiliation(s)
- N. Novak
- Department of Dermatology and Allergy; University of Bonn Medical Center; Bonn; Germany
| | - W. M. Peng
- Department of Dermatology and Allergy; University of Bonn Medical Center; Bonn; Germany
| | - T. Bieber
- Department of Dermatology and Allergy; University of Bonn Medical Center; Bonn; Germany
| | - C. Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF); University of Zurich; Davos; Switzerland
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Antagonism of the histamine H4 receptor reduces LPS-induced TNF production in vivo. Inflamm Res 2013; 62:599-607. [PMID: 23532396 PMCID: PMC3654183 DOI: 10.1007/s00011-013-0612-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 11/16/2012] [Accepted: 03/06/2013] [Indexed: 12/13/2022] Open
Abstract
Objective Antagonism of the histamine H4 receptor (H4R) has been shown to be anti-inflammatory in a number of preclinical disease models, however the exact mechanisms behind this are still being uncovered. In vitro, the receptor interacts with TLR and impacts inflammatory mediator production from a number of different cell types. Here it is shown that this interaction also occurs in vivo. Materials and methods Wild-type and H4R deficient BALB/c mice received an i.p. injection of LPS in PBS in conjunction with p.o. JNJ 7777120 or JNJ 28307474 (H4R antagonists). Two hours later blood was collected and TNF was measured. Results Two different H4R antagonists inhibited LPS-induced TNF production in mice and this production was also reduced in H4R-deficient mice. The TNF mRNA analysis showed that the major source of the cytokine was the liver and not blood, and that the H4R antagonist only reduced the expression levels in the liver. Depletion or inactivation of macrophages reduced the TNF levels and eliminated the H4R sensitivity. Treatment with an H4R antagonist also reduced LPS-induced liver injury and blocked LPS-enhanced lung inflammation in mice. Conclusion The data support an interaction between H4R and TLR activation in vivo that can drive inflammatory responses. Electronic supplementary material The online version of this article (doi:10.1007/s00011-013-0612-5) contains supplementary material, which is available to authorized users.
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Overexpression of histamine H4 receptors in the kidney of diabetic rat. Inflamm Res 2012; 62:357-65. [DOI: 10.1007/s00011-012-0587-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 12/03/2012] [Accepted: 12/10/2012] [Indexed: 11/26/2022] Open
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Nijmeijer S, Vischer HF, Rosethorne EM, Charlton SJ, Leurs R. Analysis of Multiple Histamine H4 Receptor Compound Classes Uncovers Gαi Protein- and β-Arrestin2-Biased Ligands. Mol Pharmacol 2012; 82:1174-82. [DOI: 10.1124/mol.112.080911] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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Gschwandtner M, Bunk H, Köther B, Thurmond RL, Kietzmann M, Werfel T, Bäumer W, Gutzmer R. Histamine down-regulates IL-27 production in antigen-presenting cells. J Leukoc Biol 2012; 92:21-9. [DOI: 10.1189/jlb.0111017] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Neumann D, Beermann S, Mägel L, Jonigk D, Weber-Steffens D, Männel D, Seifert R. Problems associated with the use of commercial and non-commercial antibodies against the histamine H4 receptor. Naunyn Schmiedebergs Arch Pharmacol 2012. [DOI: 10.1007/s00210-012-0766-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Gutzmer R, Werfel T, Bäumer W, Kietzmann M, Chazot PL, Leurs R. Well characterized antihistamine 4 receptor antibodies contribute to current knowledge of the expression and biology of the human and murine histamine 4 receptor. Naunyn Schmiedebergs Arch Pharmacol 2012; 385:853-4; author reply 855-60. [PMID: 22411357 DOI: 10.1007/s00210-012-0744-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Accepted: 02/20/2012] [Indexed: 11/30/2022]
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Abstract
A rapidly growing body of evidence highlighted that histamine, a small biogenic amine, is implicated in the regulation of DC (dendritic cell) functions. It is well established that DCs represent the most potent antigen-presenting cells of the body, linking innate and acquired immunity and regulating the outcome of immune responses. Signals, associated with ongoing inflammation and uptake of foreign antigens, promote maturation of DCs and activation of T-cell responses in secondary lymphatic organs. These bone marrow-derived cells patrol continuously all over the body. During their persistent migration, several mediators may influence the behaviour and functions of DCs. Histamine, produced by mast cells, basophils or DCs themselves, may have an important role in the life cycle of DCs. From the differentiation, through their never-ending circulation, until the induction of T-cell response, histamine is present and influences the life cycle of DCs. Here, we summarize recent progress in histamine research with respect to DC functions. We also point out some controversial aspects of histamine action on DCs.
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Simon T, Gogolák P, Kis-Tóth K, Jelinek I, László V, Rajnavölgyi É. Histamine modulates multiple functional activities of monocyte-derived dendritic cell subsets via histamine receptor 2. Int Immunol 2012; 24:107-16. [DOI: 10.1093/intimm/dxr107] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Adami M, Pozzoli C, Menozzi A, Bertini S, Passeri B, Cantoni AM, Smits R, de Esch I, Leurs R, Coruzzi G. Effects of Histamine H4 Receptor Ligands in a Mouse Model of Gastric Ulceration. Pharmacology 2012; 89:287-94. [DOI: 10.1159/000337736] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 02/22/2012] [Indexed: 01/08/2023]
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Coruzzi G, Pozzoli C, Adami M, Grandi D, Guido N, Smits R, de Esch I, Leurs R. Strain-dependent effects of the histamine H4 receptor antagonist JNJ7777120 in a murine model of acute skin inflammation. Exp Dermatol 2011; 21:32-7. [DOI: 10.1111/j.1600-0625.2011.01396.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Beermann S, Seifert R, Neumann D. Commercially available antibodies against human and murine histamine H₄-receptor lack specificity. Naunyn Schmiedebergs Arch Pharmacol 2011; 385:125-35. [PMID: 22071576 DOI: 10.1007/s00210-011-0700-4] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Accepted: 10/10/2011] [Indexed: 11/29/2022]
Abstract
Antibodies are important tools to detect expression and localization of proteins within the living cell. However, for a series of commercially available antibodies which are supposed to recognize G-protein-coupled receptors (GPCR), lack of specificity has been described. In recent publications, antisera against the histamine H₄-receptor (H₄R), which is a member of the GPCR family, have been used to demonstrate receptor expression. However, a comprehensive characterization of these antisera has not been performed yet. Therefore, the purpose of our study was to evaluate the specificity of three commercially available H₄R antibodies. Sf9 insect cells and HEK293 cells expressing recombinant murine and human H₄R, spleen cells obtained from H₄⁻/⁻ and from wild-type mice, and human CD20⁺ and CD20⁻ peripheral blood cells were analyzed by flow cytometry and Western blot using three commercially available H₄R antibodies. Our results show that all tested H₄R antibodies bind to virtually all cells, independently of the expression of H₄R, thus in an unspecific fashion. Also in Western blot, the H₄R antibodies do not bind to the specified protein. Our data underscore the importance of stringent evaluation of antibodies using valid controls, such as cells of H₄R⁻/⁻ mice, to show true receptor expression and antigen specificity. Improved validation of commercially available antibodies prior to release to the market would avoid time-consuming and expensive validation assays by the user.
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Affiliation(s)
- Silke Beermann
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
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Meng F, Han Y, Staloch D, Francis T, Stokes A, Francis H. The H4 histamine receptor agonist, clobenpropit, suppresses human cholangiocarcinoma progression by disruption of epithelial mesenchymal transition and tumor metastasis. Hepatology 2011; 54:1718-28. [PMID: 21793031 DOI: 10.1002/hep.24573] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
UNLABELLED Cholangiocarcinoma (CCA) is a biliary cancer arising from damaged bile ducts. Epithelial-mesenchymal transition (EMT) occurs as epithelial cells begin to resemble mesenchymal cells leading to increased invasion potential as the extracellular matrix (ECM) degrades. Histamine exerts its effects by way of four receptors (H1-H4 HRs). Clobenpropit, a potent H4HR agonist, inhibits mammary adenocarcinoma growth. We have shown that (1) cholangiocytes and CCA cells express H1-H4 HRs and (2) the H3HR decreases CCA proliferation. We evaluated the effects of clobenpropit on CCA proliferation, invasion, EMT phenotypes, and ECM degradation. In vitro, we used CCA cell lines to study proliferation, signaling pathways, and the morphological invasive potential. Gene and protein expression of the hepatobiliary epithelial markers CK-7, CK-8, and CK-19, the focal contact protein paxillin, and the mesenchymal markers fibronectin, s100A4, and vimentin were evaluated. Cell invasion across an ECM layer was quantitated and matrix metalloproteinase-1, -2, -3, -9, and -11 gene and protein expression was examined. Evaluation of the specific role of H4HR was performed by genetic knockdown of the H3HR and overexpression of H4HR. Proliferation was evaluated by proliferating cellular nuclear antigen immunoblotting. In vivo, xenograft tumors were treated with either vehicle or clobenpropit for 39 days. Tumor volume was recorded every other day. Clobenpropit significantly decreased CCA proliferation by way of a Ca(2+) -dependent pathway and altered morphological development and invasion. Loss of H3HR expression or overexpression of H4HR significantly decreased CCA proliferation. In vivo, clobenpropit inhibited xenograft tumor growth compared with controls. CONCLUSION Modulation of H4HR by clobenpropit disrupts EMT processes, ECM breakdown, and invasion potential and decreases tumor growth. Interruption of tumorigenesis and invasion by histamine may add to therapeutic advances for CCAs.
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Affiliation(s)
- Fanyin Meng
- Central Texas Veterans Health Care System, Temple, TX, USA
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Geyer R, Buschauer A. Synthesis and histamine H(3) and H(4) receptor activity of conformationally restricted cyanoguanidines related to UR-PI376. Arch Pharm (Weinheim) 2011; 344:775-85. [PMID: 21987304 DOI: 10.1002/ardp.201100144] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 05/09/2011] [Accepted: 05/13/2011] [Indexed: 11/11/2022]
Abstract
Recently, we identified highly potent agonists of the human histamine H(4) receptor (hH(4) R) among a series of imidazolylbutylcyanoguanidines. Aiming at improved selectivity for the hH(4) R relative to the H(3) receptor (hH(3) R), the flexible tetramethylene linker connecting imidazole ring and cyanoguanidine group was replaced by conformationally restricted carbocycles. Introduction of a para- or a meta-phenylene spacer yielded only very weakly active compounds at both hH(3) R and hH(4) R (investigated in [(35) S]GTPγS binding assays using Sf9 insect cell membranes expressing hH(x) R subtypes). By contrast, the incorporation of a more flexible cyclohexane-1,4-diyl linker resulted in EC(50) or K(B) values ≥110 nM at hH(4) R and hH(3) R. Quality of action, potency and receptor subtype selectivity of the investigated compounds depend on the stereochemistry: Cis-configured diastereomers prefer the hH(4) R and are partial agonists, whereas trans-isomers are antagonists at the hH(4) R. At the hH(3) R the trans-diastereomers are superior to the cis-isomers by a factor of 10. The results on imidazolylcycloalkylcyanoguanidines suggest that variation of ring size and optimization of the stereochemistry may be useful to increase the potency and selectivity of hH(4) R agonists relative to the hH(3) R.
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Affiliation(s)
- Roland Geyer
- Department of Pharmaceutical/Medicinal Chemistry II, University of Regensburg, Germany
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