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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: 16] [Impact Index Per Article: 5.3] [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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Mast Cells and Natural Killer Cells-A Potentially Critical Interaction. Viruses 2019; 11:v11060514. [PMID: 31167464 PMCID: PMC6631774 DOI: 10.3390/v11060514] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/31/2019] [Accepted: 06/02/2019] [Indexed: 12/16/2022] Open
Abstract
Natural killer (NK) cells play critical roles in host defense against infectious agents or neoplastic cells. NK cells provide a rapid innate immune response including the killing of target cells without the need for priming. However, activated NK cells can show improved effector functions. Mast cells are also critical for early host defense against a variety of pathogens and are predominately located at mucosal surfaces and close to blood vessels. Our group has recently shown that virus-infected mast cells selectively recruit NK cells and positively modulate their functions through mechanisms dependent on soluble mediators, such as interferons. Here, we review the possible consequences of this interaction in both host defense and pathologies involving NK cell and mast cell activation.
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Schaper-Gerhardt K, Rossbach K, Nikolouli E, Werfel T, Gutzmer R, Mommert S. The role of the histamine H 4 receptor in atopic dermatitis and psoriasis. Br J Pharmacol 2019; 177:490-502. [PMID: 30460986 DOI: 10.1111/bph.14550] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 10/22/2018] [Accepted: 10/28/2018] [Indexed: 12/13/2022] Open
Abstract
Atopic dermatitis (AD) and psoriasis are common skin diseases with a high negative impact on patients' quality of life. Both diseases are mediated by a pro-inflammatory infiltrate consisting of several cell types, such as T-cells, antigen-presenting cells and granulocytes and display disturbed keratinocyte differentiation. Given the fact that histamine levels are also highly elevated in inflamed skin, it is likely that histamine plays a relevant role in disease pathology. However, antagonists blocking histamine H1 receptor or H2 receptors are largely ineffective in reducing chronic symptoms in AD and psoriasis. Over the last years, much research has been undertaken to shed light into the mode of action of the most recently discovered histamine H4 receptor. This research has shown that H4 receptor antagonists display antipruritic and anti-inflammatory effects not only in mouse models but also in first human clinical trials, and therefore, H4 receptors might present a novel therapeutic target. In this review, we summarize the effects of the H4 receptors on different cell types, mouse models and clinical studies in regard to AD and psoriasis respectively. LINKED ARTICLES: This article is part of a themed section on New Uses for 21st Century. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v177.3/issuetoc.
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Affiliation(s)
- Katrin Schaper-Gerhardt
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Kristine Rossbach
- Department of Pharmacology, Toxicology and Pharmacy, Veterinary School Hannover, Hannover, Germany
| | - Eirini Nikolouli
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Thomas Werfel
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Ralf Gutzmer
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Susanne Mommert
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
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Role of Histamine in Modulating the Immune Response and Inflammation. Mediators Inflamm 2018; 2018:9524075. [PMID: 30224900 PMCID: PMC6129797 DOI: 10.1155/2018/9524075] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 06/15/2018] [Accepted: 07/04/2018] [Indexed: 01/04/2023] Open
Abstract
Inflammatory mediators, including cytokines, histamine, bradykinin, prostaglandins, and leukotrienes, impact the immune system, usually as proinflammatory factors. Other mediators act as regulatory components to establish homeostasis after injury or prevent the inflammatory process. Histamine, a biogenic vasoactive amine, causes symptoms such as allergies and has a pleiotropic effect that is dependent on its interaction with its four histamine receptors. In this review, we discuss the dualistic effects of histamine: how histamine affects inflammation of the immune system through the activation of intracellular pathways that induce the production of inflammatory mediators and cytokines in different immune cells and how histamine exerts regulatory functions in innate and adaptive immune responses. We also evaluate the interactions between these effects.
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Immunomodulatory role of histamine H4 receptor in breast cancer. Br J Cancer 2018; 120:128-138. [PMID: 29988113 PMCID: PMC6325108 DOI: 10.1038/s41416-018-0173-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/08/2018] [Accepted: 06/12/2018] [Indexed: 11/30/2022] Open
Abstract
Background Although the role of histamine H4 receptor (H4R) in immune cells is being extensively investigated, its immunomodulatory function in cancer is completely unknown. This study aimed to investigate the role of H4R in antitumour immunity in a model of triple-negative breast cancer. Methods We evaluated growth parameters, histological characteristics and the composition of tumour, splenic and tumour draining lymph node (TDLN) immune subsets, in a syngeneic model, developed orthotopically with 4T1 cells in H4R knockout (H4R-KO) and wild-type mice. Results Mice lacking H4R show reduced tumour size and weight, decreased number of lung metastases and percentage of CD4+ tumour-infiltrating T cells, while exhibiting increased infiltration of NK cells and CD19+ lymphocytes. Likewise, TDLN of H4R-KO mice show decreased CD4+ T cells and T regulatory cells (CD4+CD25+FoxP3+), and increased percentages of NK cells. Finally, H4R-deficient mice show decreased Tregs in spleens and non-draining lymph nodes, and a negative correlation between tumour weight and the percentages of CD4+, CD19+ and NK splenic cells, suggesting that H4R also regulates antitumour immunity at a systemic level. Conclusions This is the first report that demonstrates the participation of H4R in antitumour immunity, suggesting that H4R could be a target for cancer treatment.
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The histamine H4 receptor modulates the differentiation process of human monocyte-derived M1 macrophages and the release of CCL4/MIP-1β from fully differentiated M1 macrophages. Inflamm Res 2018; 67:503-513. [PMID: 29600327 DOI: 10.1007/s00011-018-1140-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 03/02/2018] [Accepted: 03/21/2018] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Histamine is an important mediator of biological functions and present in high amounts in inflammatory skin lesions which are characterised by a marked infiltration of myeloid derived cell populations. The aim of the study was to investigate the expression and function of histamine receptors, with a focus on the histamine H4 receptor (H4R) in detail during the differentiation process from monocytes to macrophages and on fully differentiated M1 macrophages. METHODS Quantitative PCR, ELISA technique, and flow cytometry were applied to analyze expression levels of histamine receptors, of CXCL10, CCL4, CCL3, or IL-23 and of the macrophage differentiation marker CD68, respectively. RESULTS We demonstrated that monocytes and fully differentiated M1 macrophages express H1R-, H2R-, and H4R mRNA which were differentially regulated during the differentiation process and in IFN-Ƴ and LPS classically activated M1 macrophages. The H3R mRNA was not expressed. During in vitro differentiation from monocytes to macrophages, the H4R agonist ST-1006 modified the M1 phenotype by up-regulating the macrophage differentiation marker CD68, by down-regulating the production of CXCL10, and by changing the morphology. In fully differentiated M1 macrophages, histamine or ST-1006 decreased the IFN-Ƴ- and LPS-induced CCL4 mRNA expression and protein production, whereas CCL3 or IL-23 production was not regulated via H4R. CONCLUSIONS We describe novel immunomodulatory functions of the H4R during the differentiation process of human monocyte-derived macrophages and in fully differentiated M1 macrophages. The down-regulation of Th1-related chemokines during the differentiation process or in classically activated macrophages via H4R may contribute to decreased migration of immune cells to the site of inflammation. This may have implications for the treatment of allergic diseases with H4R ligands regulating the dysbalance of Th2/Th1 polarizations in these disorders.
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Mommert S, Gregor K, Rossbach K, Schaper K, Witte T, Gutzmer R, Werfel T. Histamine H2 receptor stimulation upregulates T H 2 chemokine CCL17 production in human M2a macrophages. J Allergy Clin Immunol 2018; 141:782-785.e5. [DOI: 10.1016/j.jaci.2017.06.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 06/02/2017] [Accepted: 06/26/2017] [Indexed: 10/19/2022]
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Wałajtys-Rode E, Dzik JM. Monocyte/Macrophage: NK Cell Cooperation-Old Tools for New Functions. Results Probl Cell Differ 2017; 62:73-145. [PMID: 28455707 DOI: 10.1007/978-3-319-54090-0_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Monocyte/macrophage and natural killer (NK) cells are partners from a phylogenetic standpoint of innate immune system development and its evolutionary progressive interaction with adaptive immunity. The equally conservative ways of development and differentiation of both invertebrate hemocytes and vertebrate macrophages are reviewed. Evolutionary conserved molecules occurring in macrophage receptors and effectors have been inherited by vertebrates after their common ancestor with invertebrates. Cytolytic functions of mammalian NK cells, which are rooted in immune cells of invertebrates, although certain NK cell receptors (NKRs) are mammalian new events, are characterized. Broad heterogeneity of macrophage and NK cell phenotypes that depends on surrounding microenvironment conditions and expression profiles of specific receptors and activation mechanisms of both cell types are discussed. The particular tissue specificity of macrophages and NK cells, as well as their plasticity and mechanisms of their polarization to different functional subtypes have been underlined. The chapter summarized studies revealing the specific molecular mechanisms and regulation of NK cells and macrophages that enable their highly specific cross-cooperation. Attention is given to the evolving role of human monocyte/macrophage and NK cell interaction in pathogenesis of hypersensitivity reaction-based disorders, including autoimmunity, as well as in cancer surveillance and progression.
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Affiliation(s)
- Elżbieta Wałajtys-Rode
- Faculty of Chemistry, Department of Drug Technology and Biotechnology, Warsaw University of Technology, Noakowskiego 3 Str, 00-664, Warsaw, Poland.
| | - Jolanta M Dzik
- Faculty of Agriculture and Biology, Department of Biochemistry, Warsaw University of Life Sciences-SGGW, Warsaw, Poland
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Mogilski S, Kubacka M, Łażewska D, Więcek M, Głuch-Lutwin M, Tyszka-Czochara M, Bukowska-Strakova K, Filipek B, Kieć-Kononowicz K. Aryl-1,3,5-triazine ligands of histamine H 4 receptor attenuate inflammatory and nociceptive response to carrageen, zymosan and lipopolysaccharide. Inflamm Res 2016; 66:79-95. [PMID: 27766379 PMCID: PMC5209447 DOI: 10.1007/s00011-016-0997-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 10/06/2016] [Accepted: 10/11/2016] [Indexed: 12/30/2022] Open
Abstract
Objective and design Histamine H4 receptor (H4R) offers a great potential for new therapeutic strategies for the treatment of inflammation-based diseases. The aim of this study is to present the pharmacological profile of two recently synthesized ligands of H4R with particular reference to their anti-inflammatory and analgesic activity. Materials and subjects We used mice and rats in the in vivo tests. We also used murine RAW 264.7 cells and isolated guinea-pig ileum in in vitro test. Treatments In the in vivo tests, animals were pre-treated with the increasing doses of investigated compounds (12.5, 25 and 50 mg/kg) and reference compounds: JNJ7777120 (25 mg/kg), indomethacin (10 mg/kg). Macrophages were pre-treated with two concentrations of tested compounds 100 and 10 µM. Methods We examined anti-inflammatory and analgesic effects of the new H4R antagonists in the in vivo models of inflammation induced by carrageenan or zymosan. We assessed the level of cAMP and release of cytokines, ROS and NO in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Moreover, we assessed the affinity of the investigated compounds for histamine H1 receptor in functional studies. Results Both investigated compounds reduced paw edema, mechanical and thermal hyperalgesia in the carrageenan-induced acute inflammation. Moreover, administration of the investigated compounds resulted in decreased granulocyte influx and attenuated nociceptive reaction in the zymosan-induced peritonitis model. In the same model of inflammation, the investigated compounds reduced vascular permeability; however, this effect was observed only after the highest applied dose. Furthermore, the test compounds had no impact on cell viability in the experiments on RAW 264.7 macrophages. In these cells, stimulated with LPS, the test compounds decreased reactive oxygen species (ROS) production. They increased the cellular concentration of cAMP and attenuated the production of inflammatory cytokines such as TNFα and IL-1β. All results were comparable to those obtained for the reference compound JNJ7777120 with the exception of the impact on NO production. Nevertheless, this effect was similar to that obtained for the other reference compound rolipram, which is a phosphodiesterase 4 (PDE 4) inhibitor. Further experiments revealed that both of the investigated compounds possessed relatively low affinity for histamine H1 receptor and do not inhibit the activity of the PDE 4B1 enzyme. In addition, all the effects of the investigated compounds in in vivo experiments were observed at doses that did not cause neurologic deficits in rotarod test and did not reduce spontaneous locomotor activity. Conclusions Our results demonstrate the anti-inflammatory and analgesic activity of the new aryl-1,3,5-triazine derivatives, which are primarily H4R–dependent.
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Affiliation(s)
- Szczepan Mogilski
- Departament of Pharmacodynamics, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland.
| | - Monika Kubacka
- Departament of Pharmacodynamics, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Dorota Łażewska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Małgorzata Więcek
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Monika Głuch-Lutwin
- Department of Pharmacobiology, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Krakow, Poland
| | - Małgorzata Tyszka-Czochara
- Department of Radioligands, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Karolina Bukowska-Strakova
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.,Department of Clinical Immunology and Transplantology, Polish-American Institute of Pediatrics, Medical College, Jagiellonian University, Krakow, Poland
| | - Barbara Filipek
- Departament of Pharmacodynamics, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
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Mommert S, Ratz L, Herwig K, Rost M, Gutzmer R, Werfel T. Genetic variations within the promotor region of the human histamine H4 receptor gene in psoriasis patients. Pharmacol Res 2016; 114:121-127. [PMID: 27725312 DOI: 10.1016/j.phrs.2016.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 10/03/2016] [Accepted: 10/04/2016] [Indexed: 12/27/2022]
Abstract
Environmental triggers and genetic factors are supposed to lead to complex gene expression changes in psoriasis and interact in the manifestation of the disease. The histamine H4 receptor (HRH4) is functionally expressed on Th17 cells and plasmacytoid dendritic cells (pDCs) which play a prominent role in the pathogenesis of psoriasis. On pDCs a higher basal expression level of the HRH4 in psoriasis patients compared to healthy controls has been detected. The functional relationship between predisposing genetic variations in the HRH4 gene and psoriasis is yet not known. The aim of the study was to evaluate a possible association between single nucleotide polymorphisms (SNPs) in the HRH4 gene primarily in the promotor region and incidence, severity as well as special clinical features (nail involvement, arthritis, palmoplantar location) of psoriasis. For this approach genomic DNA from 206 patients with psoriasis and 213 healthy controls of Caucasian origin was extracted and three SNPs in the promotor region and one SNP located in an intron of the HRH4 gene were analysed by PCR and pyrophosphate DNA-sequencing. The genotype distributions and allele frequencies between the different groups were compared by chi-square test. The analysis of association between HRH4 polymorphisms and psoriasis was assessed by odds ratio with 95% confidence interval. The genotype distributions and allele frequencies of the four SNPs in the HRH4 gene did not show obvious differences between the whole group of psoriasis patients and healthy controls. However, there were differences by trend in subgroup analysis: The mutant genotypes (A/G) of rs17203314 and (G/A) of rs615283 were more frequent in patients with severe psoriasis PASI≥30 (34.8% and 34.8%) when compared to the control groups (23.5% and 27.2%), respectively. The mutant G/A genotype of rs615283 was significantly more frequent in patients with moderate-to-severe psoriasis PASI≥10 when compared to mild psoriasis PASI<10 (33.3% vs 21.7%, p=0.022). For rs524149 and rs17797945 the wildtype CC genotype was more frequent by trend in moderately-to-severely affected patients with PASI≥10 (85.2% and 63.0%) when compared to the group with mild psoriasis PASI<10 (77.0% and 49.4%), respectively. Furthermore, a significant association of rs615283 with psoriasis palmoplantaris was detected. In conclusion our study suggests that genetic variations within the HRH4 gene might be associated with special clinical features of psoriasis. Further studies are needed in larger study populations to confirm the reported associations and investigate the functional relevance of the identified SNPs.
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Affiliation(s)
- Susanne Mommert
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany.
| | - Lisanne Ratz
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Kira Herwig
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Maren Rost
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Ralf Gutzmer
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Thomas Werfel
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
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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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Miyano K, Matsushita S, Tsuchida T, Nakamura K. Inhibitory effect of a histamine 4 receptor antagonist on CCL17 and CCL22 production by monocyte-derived Langerhans cells in patients with atopic dermatitis. J Dermatol 2016; 43:1024-9. [DOI: 10.1111/1346-8138.13294] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 12/07/2015] [Indexed: 11/26/2022]
Affiliation(s)
- Kyohei Miyano
- Department of Dermatology; Saitama Medical University; Saitama Japan
- Allergology Center; Saitama Medical University; Saitama Japan
| | - Sho Matsushita
- Allergology Center; Saitama Medical University; Saitama Japan
- Department of Immunology; Saitama Medical University; Saitama Japan
| | - Tetsuya Tsuchida
- Department of Dermatology; Saitama Medical University; Saitama Japan
| | - Koichiro Nakamura
- Department of Dermatology; Saitama Medical University; Saitama Japan
- Allergology Center; Saitama Medical University; Saitama Japan
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