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Wang XQ, Cai HH, Deng QW, Chang YZ, Peng YP, Qiu YH. Dopamine D2 receptor on CD4 + T cells is protective against inflammatory responses and signs in a mouse model of rheumatoid arthritis. Arthritis Res Ther 2023; 25:87. [PMID: 37237413 DOI: 10.1186/s13075-023-03071-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 05/20/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Dopamine is a neurotransmitter and has been found to regulate lymphocytes by acting on dopamine receptors (DRs). CD4+ T cells express all the five subtypes of DRs, D1R to D5R. Although CD4+ T cells have been involved in pathogenesis of rheumatoid arthritis (RA), roles of DRs expressed on these cells in RA are poorly understood. This study determined whether D2R expressed on CD4+ T cells regulates inflammatory responses and signs in collagen type II (CII)-induced arthritis (CIA), a mouse model of RA. METHODS DBA/1 mice and C57BL/6 mice with global D1r or D2r deficiency (D1r-/- or D2r-/-) or CD4+ T cell-specific D2r deletion (D2rfl/fl/CD4Cre) were used to prepare CIA model by intradermal injection of CII. D2R agonist sumanirole was intraperitoneally administered in CIA mice. CD4+ T cells obtained from CIA mice were exposed to sumanirole or/and D2R antagonist L-741,626 in vitro. Arthritic symptoms were assessed by clinical arthritis scores. Flow cytometric assay measured frequencies of CD4+ T cell subsets (Th1, Th2, Th17 and Treg cells). Expression of specific transcription factors for the CD4+ T cell subsets was tested by Western blot. Cytokine production was estimated by quantitative PCR and ELISA. RESULTS CIA mice manifested a bias of CD4+ T cells towards Th1 and Th17 cells. D2r-/- CIA mice showed a stronger bias towards Th1 and Th17 phenotypes than CIA mice, while D1r-/- CIA mice did not show the changes. CD4+ T cell-specific D2r deletion exacerbated both the polarization towards Th1 and Th17 cells and the symptoms of arthritis. Sumanirole administration in CIA mice ameliorated the bias of CD4+ T cells towards Th1 and Th17 phenotypes as well as arthritic symptoms. Sumanirole treatment of in vitro CD4+ T cells obtained from CIA mice promoted the shift to Treg cells, and the effect of sumanirole was blocked by L-741,626. CONCLUSIONS D2R expressed on CD4+ T cells is protective against imbalance between pro-inflammatory and anti-inflammatory T cells and arthritic symptoms in CIA.
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Affiliation(s)
- Xiao-Qin Wang
- Department of Physiology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong, 226001, China
| | - Huan-Huan Cai
- Department of Physiology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong, 226001, China
| | - Qiao-Wen Deng
- Department of Physiology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong, 226001, China
| | - Ya-Zhou Chang
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Yu-Ping Peng
- Department of Physiology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong, 226001, China.
| | - Yi-Hua Qiu
- Department of Physiology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong, 226001, China.
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Kawano M, Takagi R, Tokano M, Matsushita S. Adenosine induces IL-31 secretion by T-helper 2 cells: Implication for the effect of adenosine on atopic dermatitis and its therapeutic strategy. Biochem Biophys Res Commun 2023; 645:47-54. [PMID: 36680936 DOI: 10.1016/j.bbrc.2023.01.038] [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: 12/22/2022] [Revised: 01/04/2023] [Accepted: 01/13/2023] [Indexed: 01/15/2023]
Abstract
Interleukin (IL)-31 is a recently-identified cytokine with a well-defined role in the pathogenesis of pruritus. Previously, we reported that adenosine upregulates IL-17A secretion by T-helper (Th)17 cells; however, the effect of adenosine on T cell subsets other than Th17 remains unclear. In this report, we show that adenosine upregulated production of IL-31 by cluster of differentiation (CD)4+ T cells. IL-31 was also upregulated by administration of an adenosine A2a receptor (A2aR) agonist (PSB0777), and adenosine-mediated IL-31 production was inhibited by an A2aR antagonist (istradefylline). Production of Th2-related cytokines (IL-4, IL-10, and IL-13) by CD4+ T cells showed the same tendency. Immune subset analyses revealed that adenosine upregulated IL-31 secretion by CD4+ chemokine receptor 3high T cells, and that Th2 cells differentiated from naïve CD4+ T cells. Administration of istradefylline to mice with atopic dermatitis suppressed the symptoms, suggesting that A2aR antagonists are an effective treatment for inflammatory dermatitis. Taken together, the results indicate that adenosine upregulates secretion of Th2-related cytokines by effector T cells in the skin, thereby triggering atopic dermatitis and associated pruritus.
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Affiliation(s)
- Masaaki Kawano
- Department of Allergy and Immunology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan; Allergy Center, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan
| | - Rie Takagi
- Department of Allergy and Immunology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan
| | - Mieko Tokano
- Department of Allergy and Immunology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan; Allergy Center, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan; Department of Infectious Disease and Infection Control, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan
| | - Sho Matsushita
- Department of Allergy and Immunology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan; Allergy Center, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan.
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Honke N, Lowin T, Opgenoorth B, Shaabani N, Lautwein A, Teijaro JR, Schneider M, Pongratz G. Endogenously produced catecholamines improve the regulatory function of TLR9-activated B cells. PLoS Biol 2022; 20:e3001513. [PMID: 35073310 PMCID: PMC8786184 DOI: 10.1371/journal.pbio.3001513] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 12/10/2021] [Indexed: 01/02/2023] Open
Abstract
The sympathetic nervous system (SNS) contributes to immune balance by promoting anti-inflammatory B cells. However, whether B cells possess a self-regulating mechanism by which they modulate regulatory B cell (Breg) function is not well understood. In this study, we investigated the ability of B cells to synthesize their own catecholamines upon stimulation with different B cell activators and found that expression of the enzyme tyrosine hydroxylase (TH), required to generate catecholamines, is up-regulated by Toll-like receptor (TLR)9. This TLR9-dependent expression of TH correlated with up-regulation of adrenergic receptors (ADRs), enhanced interleukin (IL)-10 production, and overexpression of the co-inhibitory ligands programmed death ligand 1 (PD-L1) and Fas ligand (FasL). Moreover, concomitant stimulation of ß1-3-ADRs together with a B cell receptor (BCR)/TLR9 stimulus clearly enhances the anti-inflammatory potential of Bregs to suppress CD4 T cells, a crucial population in the pathogenesis of autoimmune diseases, like rheumatoid arthritis (RA). Furthermore, TH up-regulation was also demonstrated in B cells during the course of collagen-induced arthritis (CIA), a mouse model for the investigation of RA. In conclusion, our data show that B cells possess an autonomous mechanism to modulate their regulatory function in an autocrine and/or paracrine manner. These findings help to better understand the function of B cells in the regulation of autoimmune diseases and the interplay of SNS. The sympathetic nervous system produces neurotransmitters such as catecholamines which contribute to immune balance by promoting anti-inflammatory B cells. This study shows that mouse B cells can themselves synthesize, sense, and transport catecholamines, which in turn modulate regulatory B cell function in an autocrine and/or paracrine manner to suppress T cell proliferation.
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Affiliation(s)
- Nadine Honke
- Department of Rheumatology, Hiller Research Center Rheumatology, University Hospital Düsseldorf, Germany
- * E-mail: (NH); (GP)
| | - Torsten Lowin
- Department of Rheumatology, Hiller Research Center Rheumatology, University Hospital Düsseldorf, Germany
| | - Birgit Opgenoorth
- Department of Rheumatology, Hiller Research Center Rheumatology, University Hospital Düsseldorf, Germany
| | - Namir Shaabani
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California, United States of America
| | - Alexander Lautwein
- Department of Rheumatology, Hiller Research Center Rheumatology, University Hospital Düsseldorf, Germany
| | - John R. Teijaro
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California, United States of America
| | - Matthias Schneider
- Department of Rheumatology, Hiller Research Center Rheumatology, University Hospital Düsseldorf, Germany
| | - Georg Pongratz
- Department of Rheumatology, Hiller Research Center Rheumatology, University Hospital Düsseldorf, Germany
- * E-mail: (NH); (GP)
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Pilipović I, Vujnović I, Stojić-Vukanić Z, Petrović R, Kosec D, Nacka-Aleksić M, Jasnić N, Leposavić G. Noradrenaline modulates CD4+ T cell priming in rat experimental autoimmune encephalomyelitis: a role for the α 1-adrenoceptor. Immunol Res 2020; 67:223-240. [PMID: 31396845 DOI: 10.1007/s12026-019-09082-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Pharmacological blockade of α1-adrenoceptor is shown to influence development of experimental autoimmune encephalomyelitis (EAE), an IL-17-producing CD4+TCR+ (Th17) cell-mediated disease mimicking multiple sclerosis. Considering significance of CD4+ cell priming for the clinical outcome of EAE, the study examined α1-adrenoceptor-mediated influence of catecholamines, particularly those derived from draining lymph node (dLN) cells (as catecholamine supply from nerve fibers decreases with the initiation of autoimmune diseases) for CD4+ cell priming. The results confirmed diminishing effect of immunization on nerve fiber-derived noradrenaline supply and showed that antigen presenting and CD4+ cells synthesize catecholamines, while antigen presenting cells and only CD4+CD25+Foxp3+ regulatory T cells (Tregs) express α1-adrenoceptor. The analysis of influence of α1-adrenoceptor antagonist prazosin on the myelin basic protein (MBP)-stimulated CD4+ lymphocytes in dLN cell culture showed their diminished proliferation in the presence of prazosin. This was consistent with prazosin enhancing effect on Treg frequency and their Foxp3 expression in these cultures. The latter was associated with upregulation of TGF-β expression. Additionally, prazosin decreased antigen presenting cell activation and affected their cytokine profile by diminishing the frequency of cells that produce Th17 polarizing cytokines (IL-1β and IL-23) and increasing that of IL-10-producing cells. Consistently, the frequency of all IL-17A+ cells and those co-expressing GM-CSF within CD4+ lymphocytes was decreased in prazosin-supplemented MBP-stimulated dLN cell cultures. Collectively, the results indicated that dLN cell-derived catecholamines may influence EAE development by modulating interactions between distinct subtypes of CD4+ T cells and antigen presenting cells through α1-adrenoceptor and consequently CD4+ T cell priming.
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MESH Headings
- Animals
- Biomarkers
- CD4-Positive T-Lymphocytes/drug effects
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- Cytokines/metabolism
- Disease Models, Animal
- Encephalomyelitis, Autoimmune, Experimental/etiology
- Encephalomyelitis, Autoimmune, Experimental/metabolism
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Female
- Immunization
- Immunophenotyping
- Lymph Nodes/immunology
- Lymph Nodes/metabolism
- Lymphocyte Activation/drug effects
- Lymphocyte Activation/genetics
- Lymphocyte Activation/immunology
- Male
- Norepinephrine/pharmacology
- Rats
- Receptors, Adrenergic, alpha-1/genetics
- Receptors, Adrenergic, alpha-1/metabolism
- T-Lymphocyte Subsets/drug effects
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
- Transforming Growth Factor beta/metabolism
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Affiliation(s)
- Ivan Pilipović
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", 458 Vojvode Stepe, Belgrade, 11221, Serbia
| | - Ivana Vujnović
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", 458 Vojvode Stepe, Belgrade, 11221, Serbia
| | - Zorica Stojić-Vukanić
- Department of Microbiology and Immunology, University of Belgrade-Faculty of Pharmacy, 450 Vojvode Stepe, Belgrade, 11221, Serbia
| | - Raisa Petrović
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", 458 Vojvode Stepe, Belgrade, 11221, Serbia
| | - Duško Kosec
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", 458 Vojvode Stepe, Belgrade, 11221, Serbia
| | - Mirjana Nacka-Aleksić
- Department of Pathobiology, University of Belgrade-Faculty of Pharmacy, 450 Vojvode Stepe, Belgrade, 11221, Serbia
| | - Nebojša Jasnić
- Institute for Physiology and Biochemistry, University of Belgrade-Faculty of Biology, Studentski trg 16, Belgrade, 11000, Serbia
| | - Gordana Leposavić
- Department of Pathobiology, University of Belgrade-Faculty of Pharmacy, 450 Vojvode Stepe, Belgrade, 11221, Serbia.
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5
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Thomas Broome S, Louangaphay K, Keay KA, Leggio GM, Musumeci G, Castorina A. Dopamine: an immune transmitter. Neural Regen Res 2020; 15:2173-2185. [PMID: 32594028 PMCID: PMC7749467 DOI: 10.4103/1673-5374.284976] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The dopaminergic system controls several vital central nervous system functions, including the control of movement, reward behaviors and cognition. Alterations of dopaminergic signaling are involved in the pathogenesis of neurodegenerative and psychiatric disorders, in particular Parkinson’s disease, which are associated with a subtle and chronic inflammatory response. A substantial body of evidence has demonstrated the non-neuronal expression of dopamine, its receptors and of the machinery that governs synthesis, secretion and storage of dopamine across several immune cell types. This review aims to summarize current knowledge on the role and expression of dopamine in immune cells. One of the goals is to decipher the complex mechanisms through which these cell types respond to dopamine, in order to address the impact this has on neurodegenerative and psychiatric pathologies such as Parkinson’s disease. A further aim is to illustrate the gaps in our understanding of the physiological roles of dopamine to encourage more targeted research focused on understanding the consequences of aberrant dopamine production on immune regulation. These highlights may prompt scientists in the field to consider alternative functions of this important neurotransmitter when targeting neuroinflammatory/neurodegenerative pathologies.
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Affiliation(s)
- Sarah Thomas Broome
- Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Science, Faculty of Science, University of Technology Sydney, Sydney, Australia
| | - Krystal Louangaphay
- Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Science, Faculty of Science, University of Technology Sydney, Sydney, Australia
| | - Kevin A Keay
- Laboratory of Neural Structure and Function (LNSF), School of Medical Sciences, (Anatomy and Histology), Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Gian Marco Leggio
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Giuseppe Musumeci
- Section of Human Anatomy and Histology, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Alessandro Castorina
- Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Science, Faculty of Science, University of Technology Sydney; Laboratory of Neural Structure and Function (LNSF), School of Medical Sciences, (Anatomy and Histology), Faculty of Medicine and Health, University of Sydney, Sydney, Australia
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6
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Moshfegh CM, Elkhatib SK, Collins CW, Kohl AJ, Case AJ. Autonomic and Redox Imbalance Correlates With T-Lymphocyte Inflammation in a Model of Chronic Social Defeat Stress. Front Behav Neurosci 2019; 13:103. [PMID: 31139062 PMCID: PMC6527882 DOI: 10.3389/fnbeh.2019.00103] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/25/2019] [Indexed: 11/13/2022] Open
Abstract
Patients diagnosed with post-traumatic stress disorder (PTSD) are at a significantly elevated risk of developing comorbid inflammatory conditions, but the mechanisms underlying this predilection remain unclear. Our previous work has shown that T-lymphocytes exposed to elevated levels of norepinephrine (NE) displayed a pro-inflammatory signature reminiscent of an autoreactive phenotype. With this, we hypothesized that the increased sympathetic tone observed during psychological trauma may be promoting pro-inflammatory T-lymphocytes, which causes a predisposition to comorbid inflammatory conditions. Here, we examined the consequences of psychological trauma on splenic T-lymphocytes using a mouse model of repeated social defeat stress. Social defeat led to anxiety-like and depression-like behavior as has been previously described. The spleens of socially-defeated mice showed significant elevations of NE, tyrosine hydroxylase (TH), and acetylcholinesterase (ACHE) levels, which appeared to be due in part to increased expression within T-lymphocytes. Additionally, T-lymphocytes from stressed animals showed higher levels of pro-inflammatory cytokines and mitochondrial superoxide. Interestingly, in this model system, close associations exist within splenic T-lymphocytes amid the autonomic, inflammatory, and redox environments, but these only weakly correlate with individual behavioral differences among animals suggesting the psychological and physiological manifestations of trauma may not be tightly coupled. Last, we describe, for the first time, elevations in calprotectin levels within T-lymphocytes and in circulation of psychologically stressed animals. Calprotectin correlated with both behavioral and physiological changes after social defeat, suggesting the potential for a new biological marker and/or therapeutic target for psychological trauma and its inflammatory comorbidities.
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Affiliation(s)
- Cassandra M Moshfegh
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Safwan K Elkhatib
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Christopher W Collins
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Allison J Kohl
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Adam J Case
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, United States
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7
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Pilipović I, Vujnović I, Petrović R, Stojić-Vukanić Z, Leposavić G. Propranolol Impairs Primary Immune Responses in Rat Experimental Autoimmune Encephalomyelitis. Neuroimmunomodulation 2019; 26:129-138. [PMID: 31132768 DOI: 10.1159/000500094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 03/30/2019] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE We examined the effect of β-adrenoceptor (AR) blockade in the preclinical phase of experimental autoimmune encephalomyelitis (EAE), the most commonly used model of multiple sclerosis, on the development of primary CD4+ T-cell responses in draining lymph nodes (dLNs). METHODS CD11b+ cell migration to dLNs, CD4+ T-cell activation/proliferation, and IL-17+ CD4+ (Th17) cell numbers in dLN and spinal cord (SC) were examined in male and female Dark Agouti rats using flow cytometry analysis. RESULTS Irrespective of sex, in propranolol-treated (PT) rats, migration of CD11b+ antigen-presenting cells from the site of immunization to dLNs was impaired compared with saline-treated controls and consequently the frequency of all CD11b+ cells in dLNs and activated cells among them, too. This correlated with decreased expression of CCL19/21 transcripts in dLNs. Consistently, the frequency of activated/proliferating cells among dLN CD4+ T cells was reduced in PT rats. Additionally, propranolol reduced the number of Th17 cells in dLNs and SC. Consistently, male and female PT rats exhibited a decreased incidence of EAE and prolonged duration of the asymptomatic disease phase. CONCLUSION This study suggests that sympathetic dysregulation is involved in the outbreak of clinical EAE.
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Affiliation(s)
- Ivan Pilipović
- Immunology Research Center "Branislav Janković," Institute of Virology, Vaccines, and Sera "Torlak", Belgrade, Serbia
| | - Ivana Vujnović
- Immunology Research Center "Branislav Janković," Institute of Virology, Vaccines, and Sera "Torlak", Belgrade, Serbia
| | - Raisa Petrović
- Immunology Research Center "Branislav Janković," Institute of Virology, Vaccines, and Sera "Torlak", Belgrade, Serbia
| | - Zorica Stojić-Vukanić
- Department of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Gordana Leposavić
- Department of Pathobiology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia,
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8
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Noradrenaline through β-adrenoceptor contributes to sexual dimorphism in primary CD4+ T-cell response in DA rat EAE model? Cell Immunol 2018; 336:48-57. [PMID: 30600100 DOI: 10.1016/j.cellimm.2018.12.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 12/20/2018] [Accepted: 12/24/2018] [Indexed: 12/21/2022]
Abstract
Males exhibit stronger sympathetic nervous system (SNS) activity, but weaker primary CD4+ T-cell (auto)immune responses. To test the role of catecholamines, major end-point SNS mediators, in this dimorphism, influence of propranolol (β-adrenoceptor blocker) on mitogen/neuroantigen-stimulated CD4+ T cells from female and male EAE rat draining lymph node (dLN) cell cultures was examined. Male rat dLNs exhibited higher noradrenaline concentration and frequency of β2-adrenoceptor-expressing CD4+ T lymphocytes and antigen presenting cells. Propranolol, irrespective of exogenous noradrenaline presence, more prominently augmented IL-2 production and proliferation of CD4+ lymphocytes in male than female rat dLN cell cultures. In neuroantigen-stimulated dLN cells of both sexes propranolol increased IL-1β and IL-23/p19 expression and IL-17+ CD4+ cell frequency, but enhanced IL-17 production only in male rat CD4+ lymphocytes, thereby abrogating sexual dimorphism in IL-17 concentration observed in propranolol-free cultures. Thus, β-adrenoceptor-mediated signalling may contribute to sex bias in rat IL-17-producing cell secretory capacity.
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9
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Konieczna I, Relich I, Durajski M, Lechowicz L, Chrapek M, Gaweda J, Fraczyk J, Kaminski ZJ. Novel tool in rheumatoid arthritis diagnosis-The usage of urease flap region peptidomimetics. J Pept Sci 2018; 24:e3084. [PMID: 29870122 DOI: 10.1002/psc.3084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 03/29/2018] [Accepted: 04/09/2018] [Indexed: 12/18/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune inflammatory disease. Early diagnosis can prevent joint erosion. However, available biomarkers do not always allow for clear distinction between RA and non-RA individuals. It has become known that bacteria/viruses are among the environmental triggers that initiate RA via multiple molecular mechanisms. Thus, to better understand the role of bacteria in RA, we synthetized 6 peptidomimetics of bacterial ureases' flap region. These peptides were then used to distinguish RA patients from healthy people sera by immunoblotting. Most patients' sera were bound to peptidomimetic characteristic for Enterobacter sp. and Klebsiella sp. flap urease. We also found similarities between peptidomimetic sequence and human proteins connected with RA. This pilot study suggests that bacteria may trigger RA via mechanism of molecular mimicry of urease to host proteins and ureases flap peptidomimetics may be potential candidate as a new additional diagnostic test.
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Affiliation(s)
- Iwona Konieczna
- Department of Microbiology, Jan Kochanowski University, Swietokrzyska 15, 25-406, Kielce, Poland
| | - Inga Relich
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Maciej Durajski
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Lukasz Lechowicz
- Department of Microbiology, Jan Kochanowski University, Swietokrzyska 15, 25-406, Kielce, Poland
| | - Magdalena Chrapek
- Department of Probability and Statistics, Jan Kochanowski University, Swietokrzyska 15, 25-406, Kielce, Poland
| | - Jozef Gaweda
- Swietokrzyskie Rheumatology Center, St. Luke Specialized Hospital, Gimnazjalna 41B, 26-200, Konskie, Poland
| | - Justyna Fraczyk
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Zbigniew J Kaminski
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
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Liu Y, Rui XX, Shi H, Qiu YH, Peng YP. Norepinephrine Inhibits Th17 Cells via β2-Adrenergic Receptor (β2-AR) Signaling in a Mouse Model of Rheumatoid Arthritis. Med Sci Monit 2018; 24:1196-1204. [PMID: 29485127 PMCID: PMC5839072 DOI: 10.12659/msm.906184] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Norepinephrine (NE), a neurotransmitter released from the sympathetic nerves, has been shown to be involved in rheumatoid arthritis (RA). However, its role in the sympathetic nervous system in RA is divergent. Herein, we demonstrate that the sympathetic neurotransmitter NE exerts an anti-inflammatory effect in collagen-induced arthritis (CIA), a mouse model of RA, by inhibiting Th17 cell differentiation and function via β2-adrenergic receptor (β2-AR) signaling. MATERIAL AND METHODS CIA was prepared by intradermal injection of collagen type II in the tail base of DBA1/J mice. On the 41st day post-immunization, the mice were used as CIA models. CD4+ T cells from the spleen were purified using magnetic cell sorting and activated with anti-CD3 anti-CD28 antibodies. Th17 cells were polarized from the CD4+ T cells using various antibodies and cytokines. RESULTS Co-expression of CD4 and β2-AR was observed in spleens of both intact and CIA mice. The β2-AR expression in the ankle and spleen was downregulated in CIA mice. CIA induced increases in production of interleukin (IL)-17 and IL-22, CD25-IL-17+ cell percentage, and ROR-γt expression in CD4+ T cells. Importantly, NE reduced the CIA-induced CD4+ T cell shift towards Th17 phenotype, and the β2-AR antagonist ICI118551 blocked the NE effect. Moreover, the β2-AR agonist terbutaline (Terb) inhibited CIA-induced CD4+ T cell proliferation and shift towards Th17 phenotype, and the protein kinase A (PKA) inhibitor H-89 abolished the agonist effect. Terb also reduced CIA-induced Th17 enhancement, and H-89 impaired the Terb effect. CONCLUSIONS NE inhibits Th17 cell differentiation and function in CIA condition by activation of β2-AR/PKA signaling.
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Affiliation(s)
- Yan Liu
- School of Biological and Basic Medical Sciences, Soochow University, Suzhou, Jiangsu, China (mainland).,Department of Physiology, School of Medicine, and Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China (mainland)
| | - Xiao-Xiao Rui
- Department of Physiology, School of Medicine, and Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China (mainland)
| | - Hui Shi
- Department of Physiology, School of Medicine, and Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China (mainland)
| | - Yi-Hua Qiu
- Department of Physiology, School of Medicine, and Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China (mainland)
| | - Yu-Ping Peng
- Department of Physiology, School of Medicine, and Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China (mainland)
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