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Riffard C, Letaïef L, Azar S, Casrouge A, Brunet I, Teillaud JL, Dieu-Nosjean MC. Absence of sympathetic innervation hampers the generation of tertiary lymphoid structures upon acute lung inflammation. Sci Rep 2024; 14:11749. [PMID: 38782985 PMCID: PMC11116507 DOI: 10.1038/s41598-024-62673-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 05/20/2024] [Indexed: 05/25/2024] Open
Abstract
Tertiary lymphoid structures (TLS) are lymphoid organs present in inflammatory non-lymphoid tissues. Studies have linked TLS to favorable outcomes for patients with cancers or infectious diseases, but the mechanisms underlying their formation are not fully understood. In particular, secondary lymphoid organs innervation raises the question of sympathetic nerve fibers involvement in TLS organogenesis. We established a model of pulmonary inflammation based on 5 daily intranasal instillations of lipopolysaccharide (LPS) in immunocompetent mice. In this setting, lung lymphoid aggregates formed transiently, evolving toward mature TLS and disappearing when inflammation resolved. Sympathetic nerve fibers were then depleted using 6-hydroxydopamine. TLS quantification by immunohistochemistry showed a decrease in LPS-induced TLS number and surface in denervated mouse lungs. Although a reduction in alveolar space was observed, it did not impair overall pulmonary content of transcripts encoding TNF-α, IL-1β and IFN-γ inflammation molecules whose expression was induced by LPS instillations. Immunofluorescence analysis of immune infiltrates in lungs of LPS-treated mice showed a drop in the proportion of CD23+ naive cells among CD19+ B220+ B cells in denervated mice whereas the proportion of other cell subsets remained unchanged. These data support the existence of neuroimmune crosstalk impacting lung TLS neogenesis and local naive B cell pool.
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Affiliation(s)
- Clémence Riffard
- Faculté de Santé Sorbonne Université, Sorbonne Université UMRS1135, 75013, Paris, France.
- Inserm U1135, 75013, Paris, France.
- Laboratory "Immune Microenvironment and Immunotherapy", Centre of Immunology and Microbial Infections, CIMI Paris, 75013, Paris, France.
| | - Laïla Letaïef
- Faculté de Santé Sorbonne Université, Sorbonne Université UMRS1135, 75013, Paris, France
- Inserm U1135, 75013, Paris, France
- Laboratory "Immune Microenvironment and Immunotherapy", Centre of Immunology and Microbial Infections, CIMI Paris, 75013, Paris, France
| | - Safa Azar
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS UMR7241, Inserm U1050, 75231, Cedex Paris, France
- Université Paris Sciences and Lettres, 75231, Cedex Paris, France
| | - Armanda Casrouge
- Faculté de Santé Sorbonne Université, Sorbonne Université UMRS1135, 75013, Paris, France
- Inserm U1135, 75013, Paris, France
- Laboratory "Immune Microenvironment and Immunotherapy", Centre of Immunology and Microbial Infections, CIMI Paris, 75013, Paris, France
| | - Isabelle Brunet
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS UMR7241, Inserm U1050, 75231, Cedex Paris, France
- Université Paris Sciences and Lettres, 75231, Cedex Paris, France
| | - Jean-Luc Teillaud
- Faculté de Santé Sorbonne Université, Sorbonne Université UMRS1135, 75013, Paris, France.
- Inserm U1135, 75013, Paris, France.
- Laboratory "Immune Microenvironment and Immunotherapy", Centre of Immunology and Microbial Infections, CIMI Paris, 75013, Paris, France.
| | - Marie-Caroline Dieu-Nosjean
- Faculté de Santé Sorbonne Université, Sorbonne Université UMRS1135, 75013, Paris, France.
- Inserm U1135, 75013, Paris, France.
- Laboratory "Immune Microenvironment and Immunotherapy", Centre of Immunology and Microbial Infections, CIMI Paris, 75013, Paris, France.
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Bullich-Vilarrubias C, Romaní-Pérez M, López-Almela I, Rubio T, García CJ, Tomás-Barberán FA, Sanz Y. Nav1.8-expressing neurons control daily oscillations of food intake, body weight and gut microbiota in mice. Commun Biol 2024; 7:219. [PMID: 38388698 PMCID: PMC10883928 DOI: 10.1038/s42003-024-05905-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 02/09/2024] [Indexed: 02/24/2024] Open
Abstract
Recent evidence suggests a role of sensory neurons expressing the sodium channel Nav1.8 on the energy homeostasis control. Using a murine diphtheria toxin ablation strategy and ad libitum and time-restricted feeding regimens of control or high-fat high-sugar diets, here we further explore the function of these neurons on food intake and on the regulation of gastrointestinal elements transmitting immune and nutrient sensing.The Nav1.8+ neuron ablation increases food intake in ad libitum and time-restricted feeding, and exacerbates daily body weight variations. Mice lacking Nav1.8+ neurons show impaired prandial regulation of gut hormone secretion and gut microbiota composition, and altered intestinal immunity.Our study demonstrates that Nav1.8+ neurons are required to control food intake and daily body weight changes, as well as to maintain physiological enteroendocrine and immune responses and the rhythmicity of the gut microbiota, which highlights the potential of Nav1.8+ neurons to restore energy balance in metabolic disorders.
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Affiliation(s)
- Clara Bullich-Vilarrubias
- Microbiome, Nutrition and Health Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), Valencia, Spain
| | - Marina Romaní-Pérez
- Microbiome, Nutrition and Health Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), Valencia, Spain.
| | - Inmaculada López-Almela
- Microbiome, Nutrition and Health Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), Valencia, Spain
- Research Group Intracellular Pathogens: Biology and Infection, Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology, Faculty of Veterinary Medicine, Cardenal Herrera-CEU University, Valencia, Spain
| | - Teresa Rubio
- Microbiome, Nutrition and Health Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), Valencia, Spain
| | - Carlos J García
- Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC, Murcia, Spain
| | | | - Yolanda Sanz
- Microbiome, Nutrition and Health Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), Valencia, Spain
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Liu Y, Dong J, Zhang Z, Liu Y, Wang Y. Regulatory T cells: A suppressor arm in post-stroke immune homeostasis. Neurobiol Dis 2023; 189:106350. [PMID: 37952680 DOI: 10.1016/j.nbd.2023.106350] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/09/2023] [Accepted: 11/09/2023] [Indexed: 11/14/2023] Open
Abstract
The activation of the immune system and the onset of pro- and anti-inflammatory responses play crucial roles in the pathophysiological processes of ischaemic stroke (IS). CD4+ regulatory T (Treg) cells is the main immunosuppressive cell population that is studied in the context of peripheral tolerance, autoimmunity, and the development of chronic inflammatory diseases. In recent years, more studies have focused on immune modulation after IS, and Treg cells have been demonstrated to be essential in the remission of inflammation, nerve regeneration, and behavioural recovery. However, the exact effects of Treg cells in the context of IS remain controversial, with some studies suggesting a negative correlation with stroke outcomes. In this review, we aim to provide a comprehensive overview of the current understanding of Treg cell involvement in post-stroke homeostasis. We summarized the literature focusing on the temporal changes in Treg cell populations after IS, the mechanisms of Treg cell-mediated immunomodulation in the brain, and the potential of Treg cell-based therapies for treatment. The purposes of the current article are to address the importance of Treg cells and inspire more studies to help physicians, as well as scientists, understand the whole map of immune responses during IS.
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Affiliation(s)
- Yiqi Liu
- Department of Neurosurgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Jing Dong
- Department of Medical Engineering, Tsinghua University Yuquan Hospital, Beijing 100049, China
| | - Ziqing Zhang
- Department of Neurosurgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Yunpeng Liu
- Department of Neurosurgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.
| | - Yang Wang
- Department of Neurosurgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.
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Fiore NT, Keating BA, Chen Y, Williams SI, Moalem-Taylor G. Differential Effects of Regulatory T Cells in the Meninges and Spinal Cord of Male and Female Mice with Neuropathic Pain. Cells 2023; 12:2317. [PMID: 37759539 PMCID: PMC10527659 DOI: 10.3390/cells12182317] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/20/2023] [Accepted: 08/26/2023] [Indexed: 09/29/2023] Open
Abstract
Immune cells play a critical role in promoting neuroinflammation and the development of neuropathic pain. However, some subsets of immune cells are essential for pain resolution. Among them are regulatory T cells (Tregs), a specialised subpopulation of T cells that limit excessive immune responses and preserve immune homeostasis. In this study, we utilised intrathecal adoptive transfer of activated Tregs in male and female mice after peripheral nerve injury to investigate Treg migration and whether Treg-mediated suppression of pain behaviours is associated with changes in peripheral immune cell populations in lymphoid and meningeal tissues and spinal microglial and astrocyte reactivity and phenotypes. Treatment with Tregs suppressed mechanical pain hypersensitivity and improved changes in exploratory behaviours after chronic constriction injury (CCI) of the sciatic nerve in both male and female mice. The injected Treg cells were detected in the choroid plexus and the pia mater and in peripheral lymphoid organs in both male and female recipient mice. Nonetheless, Treg treatment resulted in differential changes in meningeal and lymph node immune cell profiles in male and female mice. Moreover, in male mice, adoptive transfer of Tregs ameliorated the CCI-induced increase in microglia reactivity and inflammatory phenotypic shift, increasing M2-like phenotypic markers and attenuating astrocyte reactivity and neurotoxic astrocytes. Contrastingly, in CCI female mice, Treg injection increased astrocyte reactivity and neuroprotective astrocytes. These findings show that the adoptive transfer of Tregs modulates meningeal and peripheral immunity, as well as spinal glial populations, and alleviates neuropathic pain, potentially through different mechanisms in males and females.
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Affiliation(s)
| | | | | | | | - Gila Moalem-Taylor
- Translational Neuroscience Facility, Department of Physiology, School of Biomedical Sciences, University of New South Wales (UNSW), Sydney, NSW 2052, Australia; (N.T.F.); (B.A.K.); (Y.C.); (S.I.W.)
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Liptan G. The widespread myofascial pain of fibromyalgia is sympathetically maintained and immune mediated. J Bodyw Mov Ther 2023; 35:394-399. [PMID: 37330799 DOI: 10.1016/j.jbmt.2023.04.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/07/2023] [Accepted: 04/19/2023] [Indexed: 06/19/2023]
Abstract
The recent demonstration of antibody-induced passive transfer of pain hypersensitivity from fibromyalgia (FM) subjects to mice brings renewed focus to the role of the immune system in generating FM pain. However, this data must be interpreted in the context of known myofascial pathology in FM, which includes impaired muscle relaxation and elevated intramuscular pressure. In addition, FM fascial biopsies demonstrate elevated inflammatory and oxidative stress markers and increased endomysial collagen deposition. This article proposes a unifying hypothesis for FM pain generation that connects known muscle and fascia abnormalities with the newly discovered role of antibodies. FM is characterized by persistent sympathetic nervous system hyperactivity which results in both pathologic muscle tension and an impaired tissue healing response. Although autoantibodies play a key role in normal tissue healing, sympathetic nervous system hyperactivity impairs the resolution of inflammation, and promotes autoimmunity and excessive autoantibody production. These autoantibodies can then bind with myofascial-derived antigen to create immune complexes, which are known to trigger neuronal hyperexcitability in the dorsal root ganglion. These hyperexcited sensory neurons activate the surrounding satellite glial cells and spinal microglia leading to pain hypersensitivity and central sensitization. Although immune system modulation may become an important treatment tool in FM, direct manual treatments that lessen myofascial inflammation and tension must not be neglected. Myofascial release therapy significantly reduces FM pain, with residual benefits even after the conclusion of treatment. Self-myofascial release techniques and gentle stretching programs also ease fibromyalgia pain, as do trigger point injections and dry-needling.
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Fede C, Petrelli L, Pirri C, Neuhuber W, Tiengo C, Biz C, De Caro R, Schleip R, Stecco C. Innervation of human superficial fascia. Front Neuroanat 2022; 16:981426. [PMID: 36106154 PMCID: PMC9464976 DOI: 10.3389/fnana.2022.981426] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Abstract
The superficial fascia has only recently been recognized as a specific anatomical structure. Furthermore, whereas it is actually recognized that the innervation of the deep/muscular fascia plays a key role in proprioception and nociception, there are very few studies that have analyzed these characteristics in the superficial fascia. In this work, our group analyzed two different anatomical districts (abdomen and thigh), from volunteer patients, undergoing surgery procedures. Each sample was processed for histological analysis by Hematoxylin&Eosin, and by immunohistochemistry stainings (in 5-micron-paraffin embedded section and in cryosectioned free floating samples), with antibodies specific for nerve fibers: S100 antibody for myelinating and non-myelinating Schwann cells, PGP9.5 antibody as pan-neuronal marker, tyrosine hydroxylase for autonomic innervation. The results revealed a huge innervation: the nervous structures were found above all around blood vessels and close to adipocytes, but they penetrated also in the connective tissue itself and are found in the midst of fibro-adipose tissue. The tissue is pervaded by both thin (mean diameter of 4.8 ± 2.6 μm) and large nerve fiber bundles of greater diameter (21.1 ± 12.2 μm). The ratio S100/TH positivity was equal to 2.96, with a relative percentage of autonomic innervation with of 33.82%. In the light of these findings is evident that the superficial fasciae have a clear and distinct anatomical identity and a specific innervation, which should be considered to better understand their role in thermoregulation, exteroception and pain perception. The knowledge of the superficial fascia may improve grading and developing of different manual approach for treatments of fascial dysfunctions, and the understanding of how some factors like temperature or manual therapies can have an impact on sensitivity of the fascia.
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Affiliation(s)
- Caterina Fede
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, Padua, Italy
- *Correspondence: Caterina Fede
| | - Lucia Petrelli
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, Padua, Italy
| | - Carmelo Pirri
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, Padua, Italy
| | - Winfried Neuhuber
- Institute of Anatomy and Cell Biology, Friedrich-Alexander-University of Erlangen-Nürnberg, Erlangen, Germany
| | - Cesare Tiengo
- Plastic and Reconstructive Surgery Unit University of Padua, Padua, Italy
| | - Carlo Biz
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University of Padua, Padua, Italy
| | - Raffaele De Caro
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, Padua, Italy
| | - Robert Schleip
- Department of Sport and Health Sciences, Technical University of Munich, Munich, Germany
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, Padua, Italy
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Huston P. A Sedentary and Unhealthy Lifestyle Fuels Chronic Disease Progression by Changing Interstitial Cell Behaviour: A Network Analysis. Front Physiol 2022; 13:904107. [PMID: 35874511 PMCID: PMC9304814 DOI: 10.3389/fphys.2022.904107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/27/2022] [Indexed: 11/13/2022] Open
Abstract
Managing chronic diseases, such as heart disease, stroke, diabetes, chronic lung disease and Alzheimer’s disease, account for a large proportion of health care spending, yet they remain in the top causes of premature mortality and are preventable. It is currently accepted that an unhealthy lifestyle fosters a state of chronic low-grade inflammation that is linked to chronic disease progression. Although this is known to be related to inflammatory cytokines, how an unhealthy lifestyle causes cytokine release and how that in turn leads to chronic disease progression are not well known. This article presents a theory that an unhealthy lifestyle fosters chronic disease by changing interstitial cell behavior and is supported by a six-level hierarchical network analysis. The top three networks include the macroenvironment, social and cultural factors, and lifestyle itself. The fourth network includes the immune, autonomic and neuroendocrine systems and how they interact with lifestyle factors and with each other. The fifth network identifies the effects these systems have on the microenvironment and two types of interstitial cells: macrophages and fibroblasts. Depending on their behaviour, these cells can either help maintain and restore normal function or foster chronic disease progression. When macrophages and fibroblasts dysregulate, it leads to chronic low-grade inflammation, fibrosis, and eventually damage to parenchymal (organ-specific) cells. The sixth network considers how macrophages change phenotype. Thus, a pathway is identified through this hierarchical network to reveal how external factors and lifestyle affect interstitial cell behaviour. This theory can be tested and it needs to be tested because, if correct, it has profound implications. Not only does this theory explain how chronic low-grade inflammation causes chronic disease progression, it also provides insight into salutogenesis, or the process by which health is maintained and restored. Understanding low-grade inflammation as a stalled healing process offers a new strategy for chronic disease management. Rather than treating each chronic disease separately by a focus on parenchymal pathology, a salutogenic strategy of optimizing interstitial health could prevent and mitigate multiple chronic diseases simultaneously.
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Affiliation(s)
- Patricia Huston
- Department of Family Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Institut du Savoir Montfort (Research), University of Ottawa, Ottawa, ON, Canada
- *Correspondence: Patricia Huston, , orcid.org/0000-0002-2927-1176
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Bufan B, Arsenović-Ranin N, Živković I, Petrović R, Leposavić G. B-cell response to seasonal influenza vaccine in mice is amenable to pharmacological modulation through β-adrenoceptor. Life Sci 2022; 301:120617. [PMID: 35533760 DOI: 10.1016/j.lfs.2022.120617] [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: 12/02/2021] [Revised: 04/27/2022] [Accepted: 05/03/2022] [Indexed: 10/18/2022]
Abstract
AIMS Given that deprivation of noradrenaline acting on lymphocytes through β-adrenoceptor influences antibody response, the effects of propranolol treatment beginning two days before immunization with quadrivalent inactivated influenza vaccine (QIV) on IgG response and underlying cellular molecular mechanism in mice were investigated. MAIN METHODS Twenty-one days post-immunization the total QIV antigen-specific IgG titer and IgG subclass titers in sera were determined using ELISA. Additionally, the total counts of germinal centre (GC) B cells, T follicular helper (Tfh) and T follicular regulatory (Tfr) cells in draining lymph nodes (dLNs) and spleens, in vitro proliferation of interacting B cells and Th cells and IL-21 synthesis in Th cells in response to QIV antigens and/or mitogen were attested using flow cytometry analysis. In QIV antigen-stimulated dLN cell and splenocyte cultures were also measured concentrations of INF-γ and IL-4, cytokines upregulating IgG2a and IgG1 synthesis, respectively. KEY FINDINGS Propranolol decreased the total QIV antigen-specific IgG titer. This correlated with lower GC B cell count and the shift in Tfr/Tfh cell and Tfr/GC B cell ratio towards Tfr in propranolol-treated mice compared with controls. Consistently, QIV antigen-stimulated proliferation of B cells and Th cells from propranolol-treated mice in vitro was impaired. This correlated with the lower frequency of QIV antigen-specific IL-21-producing cells among Th cells. Additionally, in propranolol-treated mice, in accordance with the changes in INF-γ/IL-4 ratio in dLN cell/splenocyte cultures, serum IgG2a/IgG1 ratio was shifted towards IgG1 reflecting decreased IgG2a response. SIGNIFICANCE The study indicates that chronic propranolol treatment may impair response to QIV.
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Affiliation(s)
- Biljana Bufan
- Department of Microbiology and Immunology, University of Belgrade-Faculty of Pharmacy, Belgrade, Serbia
| | - Nevena Arsenović-Ranin
- Department of Microbiology and Immunology, University of Belgrade-Faculty of Pharmacy, Belgrade, Serbia
| | - Irena Živković
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", Belgrade, Serbia
| | - Raisa Petrović
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", Belgrade, Serbia
| | - Gordana Leposavić
- Department of Pathobiology, University of Belgrade-Faculty of Pharmacy, Belgrade, Serbia.
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Li F, Yu R, Sun X, Chen X, Xu P, Huang Y, Huang S, Xue Y, Fu T, Liu J, Li Z. Autonomic nervous system receptor-mediated regulation of mast cell degranulation modulates the inflammation after corneal epithelial abrasion. Exp Eye Res 2022; 219:109065. [PMID: 35421396 DOI: 10.1016/j.exer.2022.109065] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 03/17/2022] [Accepted: 03/30/2022] [Indexed: 01/24/2023]
Abstract
Mast cells (MCs) regulate wound healing and are influenced by the autonomic nervous system (ANS). However, the underlying mechanisms affecting wound healing outcomes remain elusive. Here, we explored the specific role of the ANS by regulating MC degranulation following corneal epithelium abrasion. A mouse model of corneal abrasion was established by mechanically removing a 2-mm central epithelium. Wound closure, neutrophil infiltration, and transcription of injured corneas were investigated using whole-mount immunostaining, flow cytometry, and RNA-sequencing analysis, respectively. Inhibition of MC degranulation by the MC stabilizers cromolyn sodium and lodoxamide tromethamine increased the infiltration of neutrophils and delayed healing of abraded corneas. Moreover, transcriptomic profiling analysis showed that purified MCs from the limbus expressed adrenergic and cholinergic receptors. Pharmacological manipulation and sympathectomy with 6-hydroxydopamine confirmed that sympathetic nervous system signaling inhibited MC degranulation after corneal abrasion, whereas parasympathetic nervous system signaling enhanced MC degranulation. We conclude that normal degranulation of MCs in the corneal limbus and crosstalk between the ANS and MCs are crucial for the appropriate control of inflammation and the repair progress of wounded corneas. This suggests a potential approach for improving defective corneal wound healing by the administration of clinically available autonomic activity-modulating agents.
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Affiliation(s)
- Fanying Li
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Microbiology and Immunology, School of Medicine, Jinan University, Guangzhou, China
| | - Ruoxun Yu
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xin Sun
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xinwei Chen
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Pengyang Xu
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China
| | - Yijia Huang
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Shuoya Huang
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yunxia Xue
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China
| | - Ting Fu
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China
| | - Jun Liu
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China.
| | - Zhijie Li
- International Ocular Surface Research Center, Institute of Ophthalmology, Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China.
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Myofascial Tissue and Depression. COGNITIVE THERAPY AND RESEARCH 2021; 46:560-572. [PMID: 34955570 PMCID: PMC8688142 DOI: 10.1007/s10608-021-10282-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2021] [Indexed: 11/06/2022]
Abstract
Background The myofascial system plays a fundamental role in the mechanics of the body, in body tension regulation and the etiology of pathological states like chronic pain. Moreover, it contains contractile elements and preliminary evidence suggests that its properties are linked to psychological factors. The aim of the present research was to investigate characteristics of the myofascial tissue in patients with Major Depressive Disorder (MDD) and to examine whether the state of the myofascial tissue causally affects pathopsychological processes in MDD. Methods In Study 1, stiffness and elasticity of the myofascial tissue of 40 inpatients suffering from MDD measured with a tissue compliance meter were compared with those of 40 matched never-depressed participants. In Study 2, 69 MDD patients were randomly assigned to single-session self-myofascial release intervention (SMRI) or a placebo intervention. Effects on memory bias and affect were investigated. Results Results showed that MDD patients displayed heightened stiffness and reduced elasticity of the myofascial tissue and that patients in the SMRI group showed a reduced negative memory bias and more positive affect compared to patients in the placebo condition. Conclusions The preliminary results of our studies indicate that the myofascial tissue might be part of a dysfunctional body-mind dynamic that maintains MDD. Supplementary Information The online version contains supplementary material available at 10.1007/s10608-021-10282-w.
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Psychological intervention to treat distress: An emerging frontier in cancer prevention and therapy. Biochim Biophys Acta Rev Cancer 2021; 1877:188665. [PMID: 34896258 DOI: 10.1016/j.bbcan.2021.188665] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/27/2021] [Accepted: 12/01/2021] [Indexed: 02/05/2023]
Abstract
Psychological distress, such as chronic depression and anxiety, is a topical problem. In the context of cancer patients, prevalence rates of psychological distress are four-times higher than in the general population and often confer worse outcomes. In addition to evidence from epidemiological studies confirming the links between psychological distress and cancer progression, a growing body of cellular and molecular studies have also revealed the complex signaling networks which are modulated by psychological distress-derived chronic stress during cancer progression. In this review, aiming to uncover the intertwined networks of chronic stress-driven oncogenesis and progression, we summarize physiological stress response pathways, like the HPA, SNS, and MGB axes, that modulate the release of stress hormones with potential carcinogenic properties. Furthermore, we discuss in detail the mechanisms behind these chronic stimulations contributing to the initiation and progression of cancer through direct regulation of cancer hallmarks-related signaling or indirect promotion of cancer risk factors (including obesity, disordered circadian rhythms, and premature senescence), suggesting a novel research direction into cancer prevention and therapy on the basis of psychological interventions.
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Aslani M, Mortazavi-Jahromi SS, Mirshafiey A. Efficient roles of miR-146a in cellular and molecular mechanisms of neuroinflammatory disorders: An effectual review in neuroimmunology. Immunol Lett 2021; 238:1-20. [PMID: 34293378 DOI: 10.1016/j.imlet.2021.07.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/03/2021] [Accepted: 07/15/2021] [Indexed: 12/16/2022]
Abstract
Known as one of the most sophisticated systems of the human body, the nervous system consists of neural cells and controls all parts of the body. It is closely related to the immune system. The effects of inflammation and immune reactions have been observed in the pathogenesis of some neurological disorders. Defined as the gene expression regulators, miRNAs participate in cellular processes. miR-146a is a mediator in the neuroimmune system, leaving substantial effects on the homeostasis of immune and brain cells, neuronal identities acquisition, and immune responses regulation in the nervous system. Its positive efficiency has been proven in modulating inflammatory reactions, hemorrhagic complications, and pain. Moreover, the miR-146a targets play a key role in the pathogenesis of these illnesses. Based on the performance of its targets, miR-146a can have various effects on the disease progress. The abnormal expression/function of miR-146a has been reported in neuroinflammatory disorders. There is research evidence that this molecule qualifies as a desirable biomarker for some disorders and can even be a therapeutic target. This study aims to provide a meticulous review regarding the roles of miR-146a in the pathogenesis and progression of several neuroinflammatory disorders such as multiple sclerosis, amyotrophic lateral sclerosis, Alzheimer's disease, temporal lobe epilepsy, ischemic stroke, etc. The study also considers its eligibility for use as an ideal biomarker and therapeutic target in these diseases. The awareness of these mechanisms can facilitate the disease management/treatment, lead to patients' amelioration, improve the quality of life, and mitigate the risk of death.
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Affiliation(s)
- Mona Aslani
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Abbas Mirshafiey
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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13
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Assis MA, Díaz D, Ferrado R, Ávila-Zarza CA, Weruaga E, Ambrosio E. Transplantation with Lewis bone marrow induces the reinstatement of cocaine-seeking behavior in male F344 resistant rats. Brain Behav Immun 2021; 93:23-34. [PMID: 33278561 DOI: 10.1016/j.bbi.2020.11.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 10/27/2020] [Accepted: 11/22/2020] [Indexed: 01/14/2023] Open
Abstract
One of the main challenges to understand drug addiction is defining the biological mechanisms that underlie individual differences in recidivism. Studies of these mechanisms have mainly focused on the brain, yet we demonstrate here a significant influence of the peripheral immune system on this phenomenon. Lewis (LEW) and Fischer 344 (F344) rats have different immunological profiles and they display a distinct vulnerability to the reinforcing effects of cocaine, with F344 more resistant to reinstate cocaine-seeking behavior. Bone marrow from male LEW and F344 rats was transferred to male F344 rats (F344/LEW-BM and F344/F344-BM, respectively), and these rats were trained to self-administer cocaine over 21 days. Following extinction, these animals received a sub-threshold primer dose of cocaine to evaluate reinstatement. F344/LEW-BM but not F344/F344-BM rats reinstated cocaine-seeking behavior, in conjunction with changes in their peripheral immune cell populations to a profile that corresponded to that of the LEW donors. After cocaine exposure, higher CD4+ T-cells and lower CD4+CD25+ T-cells levels were observed in F344/LEW-BM rats referred to control, and the splenic expression of Il-17a, Tgf-β, Tlr-2, Tlr-4 and Il-1β was altered in both groups. We propose that peripheral T-cells respond to cocaine, with CD4+ T-cells in particular undergoing Th17 polarization and generating long-term memory, these cells releasing mediators that trigger central mechanisms to induce reinstatement after a second encounter. This immune response may explain the high rates of recidivism observed despite long periods of detoxification, shedding light on the mechanisms underlying the vulnerability and resilience of specific individuals, and opening new perspectives for personalized medicine in the treatment of relapse.
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Affiliation(s)
- María Amparo Assis
- Departamento de Psicobiología, Facultad de Psicología, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain; Facultad de Ciencias Médicas, Universidad Nacional de Santiago del Estero (UNSE), Santiago del Estero, Argentina; Laboratorio de Biología Molecular, Inmunología y Microbiología, Instituto Multidisciplinario de Salud, Tecnología y Desarrollo (IMSaTeD), CONICET-UNSE, Santiago del Estero, Argentina.
| | - David Díaz
- Instituto de Neurociencias de Castilla y León (INCyL), Universidad de Salamanca (USAL), Salamanca, Spain; Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - Rosa Ferrado
- Departamento de Psicobiología, Facultad de Psicología, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
| | - Carmelo Antonio Ávila-Zarza
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain; Grupo de Estadística Aplicada, Departamento de Estadísticas, USAL, Salamanca, Spain
| | - Eduardo Weruaga
- Instituto de Neurociencias de Castilla y León (INCyL), Universidad de Salamanca (USAL), Salamanca, Spain; Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - Emilio Ambrosio
- Departamento de Psicobiología, Facultad de Psicología, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
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14
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How does stellate ganglion block alleviate immunologically-linked disorders? Med Hypotheses 2020; 144:110000. [DOI: 10.1016/j.mehy.2020.110000] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/04/2020] [Accepted: 06/13/2020] [Indexed: 12/11/2022]
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15
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Nevin JT, Moussa M, Corwin WL, Mandoiu II, Srivastava PK. Sympathetic nervous tone limits the development of myeloid-derived suppressor cells. Sci Immunol 2020; 5:5/51/eaay9368. [PMID: 32917793 DOI: 10.1126/sciimmunol.aay9368] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 07/29/2020] [Indexed: 12/17/2022]
Abstract
Sympathetic nerves that innervate lymphoid organs regulate immune development and function by releasing norepinephrine that is sensed by immune cells via their expression of adrenergic receptors. Here, we demonstrate that ablation of sympathetic nervous system (SNS) signaling suppresses tumor immunity, and we dissect the mechanism of such immune suppression. We report that disruption of the SNS in mice removes a critical α-adrenergic signal required for maturation of myeloid cells in normal and tumor-bearing mice. In tumor-bearing mice, disruption of the α-adrenergic signal leads to the accumulation of immature myeloid-derived suppressor cells (MDSCs) that suppress tumor immunity and promote tumor growth. Furthermore, we show that these SNS-responsive MDSCs drive expansion of regulatory T cells via secretion of the alarmin heterodimer S100A8/A9, thereby compounding their immunosuppressive activity. Our results describe a regulatory framework in which sympathetic tone controls the development of innate and adaptive immune cells and influences their activity in health and disease.
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Affiliation(s)
- James T Nevin
- Department of Immunology and Carole and Ray Neag Comprehensive Cancer Center, University of Connecticut School of Medicine, Farmington, CT, USA.
| | - Marmar Moussa
- Department of Computer Science and Engineering, University of Connecticut, Farmington, CT, USA
| | - William L Corwin
- Department of Immunology and Carole and Ray Neag Comprehensive Cancer Center, University of Connecticut School of Medicine, Farmington, CT, USA
| | - Ion I Mandoiu
- Department of Computer Science and Engineering, University of Connecticut, Farmington, CT, USA
| | - Pramod K Srivastava
- Department of Immunology and Carole and Ray Neag Comprehensive Cancer Center, University of Connecticut School of Medicine, Farmington, CT, USA.
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16
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Passaglia P, Faim FDL, Batalhão ME, Bendhack LM, Antunes-Rodrigues J, Ulloa L, Kanashiro A, Carnio EC. Central angiotensin-(1-7) attenuates systemic inflammation via activation of sympathetic signaling in endotoxemic rats. Brain Behav Immun 2020; 88:606-618. [PMID: 32335195 PMCID: PMC7643008 DOI: 10.1016/j.bbi.2020.04.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 01/21/2023] Open
Abstract
Angiotensin-(1-7) [Ang-(1-7)] is an angiotensin-derived neuropeptide with potential anti-hypertensive and anti-inflammatory properties. However, a possible action of Ang-(1-7) in neuroimmune interactions to regulate inflammatory response has not been explored. Thus, the aim of this study was to determine whether the intracerebroventricular (i.c.v.) administration of Ang-(1-7) can modulate systemic inflammation via sympathetic efferent circuits. Wistar male rats received systemic administration of lipopolysaccharide (LPS) (1.5 mg/Kg). Ang-(1-7) (0.3 nmol in 2 µL) promoted the release of splenic norepinephrine and attenuated tumor necrosis factor (TNF) and nitric oxide (NO), but increased interleukin-10 (IL-10), levels in the serum, spleen, and liver in endotoxemic rats. Furthermore, 6-hydroxydopamine-induced chemical sympathectomy (100 mg/Kg, intravenous) or i.c.v. administration of Mas receptor antagonist A779 (3 nmol in 2 µL) abolished the anti-inflammatory effects of central Ang-(1-7) injection. Moreover, this treatment did not alter the plasmatic LPS-induced corticosterone and vasopressin. The administration of Ang-(1-7) reverted the low resistance in response to catecholamines of rings of thoracic aorta isolated from endotoxemic rats, treated or not, with this peptide by a mechanism dependent on the regulation of NO released from perivascular adipose tissue. Together, our results indicate that Ang-(1-7) regulates systemic inflammation and vascular hyporesponsiveness in endotoxemia via activation of a central Mas receptors/sympathetic circuits/norepinephrine axis and provide novel mechanistic insights into the anti-inflammatory Ang-(1-7) properties.
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Affiliation(s)
- Patrícia Passaglia
- Department of Physiology, Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Felipe de Lima Faim
- Department of Physiology, Ribeirão Preto Medical School – University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Marcelo Eduardo Batalhão
- Department of General and Specialized Nursing Ribeirão Preto, College of Nursing – University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Lusiane Maria Bendhack
- Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirão Preto, Ribeirão Preto - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - José Antunes-Rodrigues
- Department of Physiology, Ribeirão Preto Medical School – University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Luis Ulloa
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Alexandre Kanashiro
- Department of Neurosciences and Behavior, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Evelin Capellari Carnio
- Department of Physiology, Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, SP, Brazil; Department of General and Specialized Nursing Ribeirão Preto, College of Nursing - University of São Paulo, Ribeirão Preto, SP, Brazil.
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17
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Rojas C, Campos-Mora M, Cárcamo I, Villalón N, Elhusseiny A, Contreras-Kallens P, Refisch A, Gálvez-Jirón F, Emparán I, Montoya-Riveros A, Vernal R, Pino-Lagos K. T regulatory cells-derived extracellular vesicles and their contribution to the generation of immune tolerance. J Leukoc Biol 2020; 108:813-824. [PMID: 32531824 DOI: 10.1002/jlb.3mr0420-533rr] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 04/15/2020] [Accepted: 04/27/2020] [Indexed: 12/11/2022] Open
Abstract
T regulatory (Treg) cells have a major role in the maintenance of immune tolerance against self and foreign antigens through the control of harmful inflammation. Treg cells exert immunosuppressive function by several mechanisms, which can be distinguished as contact dependent or independent. Recently, the secretion of extracellular vesicles (EVs) by Treg cells has been reported as a novel suppressive mechanism capable of modulating immunity in a cell-contact independent and targeted manner, which has been identified in different pathologic scenarios. EVs are cell-derived membranous structures involved in physiologic and pathologic processes through protein, lipid, and genetic material exchange, which allow intercellular communication. In this review, we revise and discuss current knowledge on Treg cells-mediated immune tolerance giving special attention to the production and release of EVs. Multiple studies support that Treg cells-derived EVs represent a refined intercellular exchange device with the capacity of modulating immune responses, thus creating a tolerogenic microenvironment in a cell-free manner. The mechanisms proposed encompass miRNAs-induced gene silencing, the action of surface proteins and the transmission of enzymes. These observations gain relevance by the fact that Treg cells are susceptible to converting into effector T cells after exposition to inflammatory environments. Yet, in contrast to their cells of origin, EVs are unlikely to be modified under inflammatory conditions, highlighting the advantage of their use. Moreover, we speculate in the possibility that Treg cells may contribute to infectious tolerance via vesicle secretion, intervening with CD4+ T cells differentiation and/or stability.
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Affiliation(s)
- Carolina Rojas
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile.,Periodontal Biology Laboratory, Faculty of Dentistry, Universidad de Chile, Las Condes, Santiago, Chile
| | - Mauricio Campos-Mora
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
| | - Ignacio Cárcamo
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
| | - Natalia Villalón
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
| | - Ahmed Elhusseiny
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
| | - Pamina Contreras-Kallens
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
| | - Aarón Refisch
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
| | - Felipe Gálvez-Jirón
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
| | - Ivana Emparán
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
| | - Andro Montoya-Riveros
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
| | - Rolando Vernal
- Periodontal Biology Laboratory, Faculty of Dentistry, Universidad de Chile, Las Condes, Santiago, Chile
| | - Karina Pino-Lagos
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
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18
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Dorneles GP, dos Passos AA, Romão PR, Peres A. New Insights about Regulatory T Cells Distribution and Function with Exercise: The Role of Immunometabolism. Curr Pharm Des 2020; 26:979-990. [DOI: 10.2174/1381612826666200305125210] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/08/2020] [Indexed: 02/08/2023]
Abstract
A lack of physical activity is linked to the development of many chronic diseases through a chronic
low-grade inflammation state. It is now well accepted that the immune system plays a central role in the development
of several chronic diseases, including insulin resistance, type 2 diabetes, atherosclerosis, heart failure and
certain types of cancer. Exercise elicits a strong anti-inflammatory response independently of weight loss and can
be a useful non-pharmacologic strategy to counteract the low-grade inflammation. The CD4+CD25+CD127-
FoxP3+ Regulatory T (Treg) cells are a unique subset of helper T-cells, which regulate immune response and
establish self-tolerance through the secretion of immunoregulatory cytokines, such as IL-10 and TGF-β, and the
suppression of the function and activity of many immune effector cells (including monocytes/macrophages, dendritic
cells, CD4+ and CD8+ T cells, and Natural Killers). The metabolic phenotype of Tregs are regulated by the
transcription factor Foxp3, providing flexibility in fuel choice, but a preference for higher fatty acid oxidation. In
this review, we focus on the mechanisms by which exercise - both acute and chronic - exerts its antiinflammatory
effects through Treg cells mobilization. Furthermore, we discuss the implications of immunometabolic
changes during exercise for the modulation of Treg phenotype and its immunosuppressive function. This
narrative review focuses on the current knowledge regarding the role of Treg cells in the context of acute and
chronic exercise using data from observational and experimental studies. Emerging evidence suggests that the
immunomodulatory effects of exercise are mediated by the ability of exercise to adjust and improve Tregs number
and function.
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Affiliation(s)
- Gilson P. Dorneles
- Cellular and Molecular Immunology Lab., Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre - RS, Brazil
| | - Aline A.Z. dos Passos
- Cellular and Molecular Immunology Lab., Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre - RS, Brazil
| | - Pedro R.T. Romão
- Cellular and Molecular Immunology Lab., Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre - RS, Brazil
| | - Alessandra Peres
- Cellular and Molecular Immunology Lab., Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre - RS, Brazil
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19
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Liu J, Huang S, Li F, Wu M, He J, Xue Y, Fu T, Yu R, Chen X, Wang Y, Li Z. Sympathetic Nerves Positively Regulate Eosinophil-Driven Allergic Conjunctivitis via α1-Adrenergic Receptor Signaling. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:1298-1308. [PMID: 32194050 DOI: 10.1016/j.ajpath.2020.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 02/15/2020] [Accepted: 02/20/2020] [Indexed: 12/17/2022]
Abstract
Eosinophils are a major cause of tissue injury in allergic conjunctivitis. The biological nature of eosinophils in the conjunctiva and the mechanisms that control eosinophils' responses in allergic conjunctivitis are currently not completely understood. This study reports that conjunctival eosinophils comprise two populations-Siglec-Fint and Siglec-Fhi-in different life stages. Siglec-Fint eosinophils partly expressed CD34 and were in the immature (or steady) state. Siglec-Fhi eosinophils did not express CD34, sharply increased in number after short ragweed (SRW) pollen challenge, and were in the mature (or activated) state. Moreover, chemical sympathectomy by 6-hydroxydopamine reduced the recruitment and activation of eosinophils, whereas the activation of the sympathetic nerve system (SNS) with restraint stress accelerated the recruitment and activation of eosinophils in SRW-induced conjunctivitis. It was also found that two eosinophil populations expressed alpha-1a-adrenergic receptors (α1a-ARs); in SRW-induced conjunctivitis, treatment with an α1a-AR antagonist decreased eosinophil responses, whereas treatment with an α1a-AR agonist aggravated eosinophil responses. Thus, eosinophil responses in conjunctivitis are regulated by the SNS via α1a-AR signaling. SNS inputs or α1a-AR function may be potential targets for the treatment of allergic conjunctivitis.
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Affiliation(s)
- Jun Liu
- International Ocular Surface Research Center, Institute of Ophthalmology and Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China
| | - Shuoya Huang
- International Ocular Surface Research Center, Institute of Ophthalmology and Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Fanying Li
- International Ocular Surface Research Center, Institute of Ophthalmology and Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Microbiology and Immunology, School of Medicine, Jinan University, Guangzhou, China
| | - Mingjuan Wu
- International Ocular Surface Research Center, Institute of Ophthalmology and Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China
| | - Jingxin He
- International Ocular Surface Research Center, Institute of Ophthalmology and Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yunxia Xue
- International Ocular Surface Research Center, Institute of Ophthalmology and Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China
| | - Ting Fu
- International Ocular Surface Research Center, Institute of Ophthalmology and Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China
| | - Ruoxun Yu
- International Ocular Surface Research Center, Institute of Ophthalmology and Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xinwei Chen
- International Ocular Surface Research Center, Institute of Ophthalmology and Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China
| | - Yuming Wang
- Departments of Science and Technology Administration, Henan Provincial People's Hospital, Henan University People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Zhijie Li
- International Ocular Surface Research Center, Institute of Ophthalmology and Key Laboratory for Regenerative Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, China; Department of Ophthalmology, Henan Provincial People's Hospital, Henan University People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China.
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20
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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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21
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Bottasso E. Toward the Existence of a Sympathetic Neuroplasticity Adaptive Mechanism Influencing the Immune Response. A Hypothetical View-Part II. Front Endocrinol (Lausanne) 2019; 10:633. [PMID: 31620088 PMCID: PMC6760024 DOI: 10.3389/fendo.2019.00633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 08/30/2019] [Indexed: 01/16/2023] Open
Abstract
In the preceding work, a hypothesis on the existence of a specific neural plasticity program from sympathetic fibers innervating secondary lymphoid organs was introduced. This proposed adaptive mechanism would involve segmental retraction and degeneration of noradrenergic terminals during the immune system (IS) activation followed by regeneration once the IS returns to the steady-state. Starting from such view, this second part presents clinical and experimental evidence allowing to envision that this sympathetic neural plasticity mechanism is also operative on inflamed non-lymphoid peripheral tissues. Importantly, the sympathetic nervous system regulates most of the physiological bodily functions, ranging from cardiovascular, respiratory and gastro-intestinal functions to endocrine and metabolic ones, among others. Thus, it seems sensible to think that compensatory programs should be put into place during inflammation in non-lymphoid tissues as well, to avoid the possible detrimental consequences of a sympathetic blockade. Nevertheless, in many pathological scenarios like severe sepsis, chronic inflammatory diseases, or maladaptive immune responses, such compensatory programs against noradrenergic transmission impairment would fail to develop. This would lead to a manifest sympathetic dysfunction in the above-mentioned settings, partly accounting for their underlying pathophysiological basis; which is also discussed. The physiological/teleological significance for the whole neural plasticity process is postulated, as well.
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Affiliation(s)
- Emanuel Bottasso
- Departments of Pathology and Physiology, Faculty of Medicine, Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Rosario, Argentina
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Araujo LP, Maricato JT, Guereschi MG, Takenaka MC, Nascimento VM, de Melo FM, Quintana FJ, Brum PC, Basso AS. The Sympathetic Nervous System Mitigates CNS Autoimmunity via β2-Adrenergic Receptor Signaling in Immune Cells. Cell Rep 2019; 28:3120-3130.e5. [DOI: 10.1016/j.celrep.2019.08.042] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 06/18/2019] [Accepted: 08/12/2019] [Indexed: 01/13/2023] Open
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Schleip R, Klingler W. Active contractile properties of fascia. Clin Anat 2019; 32:891-895. [PMID: 31012158 DOI: 10.1002/ca.23391] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 04/19/2019] [Accepted: 04/21/2019] [Indexed: 12/16/2022]
Abstract
The ubiquitous network of fascial tissues in the human body is usually regarded as a passive contributor to musculoskeletal dynamics. This review aims to highlight the current understanding of fascial stiffness regulation. Notably the ability for active cellular contraction which may augment the stiffness of fascial tissues and thereby contribute to musculoskeletal dynamics. A related narrative literature search via PubMed and Google Scholar reveals a multitude of studies indicating that the intrafascial presence of myofibroblasts may enable these tissues to alter their stiffness. This contractile tissue behavior occurs not only in several pathological fibrotic contractures but has also been documented in normal fasciae. When viewed at time frames of seconds and minutes the force of such tissue contractions is not sufficient for exerting a significant effect on mechanical joint stability. However, when viewed in a time-window of several minutes and longer, such cellular contractions can impact motoneuronal coordination. In addition, over a time frame of days to months, this cellular activity can induce long-term and severe tissue contractures. These findings tend to question the common clear distinction between active tissues and passive tissues in musculoskeletal dynamics. Clin. Anat. 32:891-895, 2019. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Robert Schleip
- Department of Neuroanesthesiology, Neurosurgical Clinic, Ulm University, Guenzburg, Germany.,Department of Sports Medicine and Health Promotion, Friedrich Schiller University Jena, Jena, Germany.,Fascia Research Group, Experimental Anesthesiology, Ulm University, Ulm, Germany
| | - Werner Klingler
- Fascia Research Group, Experimental Anesthesiology, Ulm University, Ulm, Germany.,Faculty of Health School - Clinical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
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Schleip R, Gabbiani G, Wilke J, Naylor I, Hinz B, Zorn A, Jäger H, Breul R, Schreiner S, Klingler W. Fascia Is Able to Actively Contract and May Thereby Influence Musculoskeletal Dynamics: A Histochemical and Mechanographic Investigation. Front Physiol 2019; 10:336. [PMID: 31001134 PMCID: PMC6455047 DOI: 10.3389/fphys.2019.00336] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 03/13/2019] [Indexed: 11/19/2022] Open
Abstract
Fascial tissues form a ubiquitous network throughout the whole body, which is usually regarded as a passive contributor to biomechanical behavior. We aimed to answer the question, whether fascia may possess the capacity for cellular contraction which, in turn, could play an active role in musculoskeletal mechanics. Human and rat fascial specimens from different body sites were investigated for the presence of myofibroblasts using immunohistochemical staining for α-smooth muscle actin (n = 31 donors, n = 20 animals). In addition, mechanographic force registrations were performed on isolated rat fascial tissues (n = 8 to n = 18), which had been exposed to pharmacological stimulants. The density of myofibroblasts was increased in the human lumbar fascia in comparison to fasciae from the two other regions examined in this study: fascia lata and plantar fascia [H(2) = 14.0, p < 0.01]. Mechanographic force measurements revealed contractions in response to stimulation by fetal bovine serum, the thromboxane A2 analog U46619, TGF-β1, and mepyramine, while challenge by botulinum toxin type C3–used as a Rho kinase inhibitor– provoked relaxation (p < 0.05). In contrast, fascial tissues were insensitive to angiotensin II and caffeine (p < 0.05). A positive correlation between myofibroblast density and contractile response was found (rs = 0.83, p < 0.001). The hypothetical application of the registered forces to human lumbar tissues predicts a potential impact below the threshold for mechanical spinal stability but strong enough to possibly alter motoneuronal coordination in the lumbar region. It is concluded that tension of myofascial tissue is actively regulated by myofibroblasts with the potential to impact active musculoskeletal dynamics.
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Affiliation(s)
- Robert Schleip
- Department of Neuroanesthesiology, Neurosurgical Clinic, Ulm University, Günzburg, Germany.,Department of Sports Medicine and Health Promotion, Friedrich Schiller University Jena, Jena, Germany.,Fascia Research Group, Experimental Anesthesiology, Ulm University, Ulm, Germany
| | - Giulio Gabbiani
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Jan Wilke
- Department of Sports Medicine, Institute of Sport Science, Goethe University Frankfurt, Frankfurt, Germany
| | - Ian Naylor
- School of Pharmacy, University of Bradford, Bradford, United Kingdom
| | - Boris Hinz
- Laboratory of Tissue Repair and Regeneration, Matrix Dynamics Group, University of Toronto, Toronto, ON, Canada
| | - Adjo Zorn
- Fascia Research Group, Experimental Anesthesiology, Ulm University, Ulm, Germany
| | - Heike Jäger
- Division of Neurophysiology, Ulm University, Ulm, Germany
| | - Rainer Breul
- Anatomische Anstalt, Ludwig-Maximilians-Universität, München, Germany
| | | | - Werner Klingler
- Fascia Research Group, Experimental Anesthesiology, Ulm University, Ulm, Germany.,Faculty of Health School - Clinical Sciences, Queensland University of Technology, Brisbane, QLD, Australia
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Bottasso E. Toward the Existence of a Sympathetic Neuroplasticity Adaptive Mechanism Influencing the Immune Response. A Hypothetical View-Part I. Front Endocrinol (Lausanne) 2019; 10:632. [PMID: 31616373 PMCID: PMC6763740 DOI: 10.3389/fendo.2019.00632] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 08/30/2019] [Indexed: 12/21/2022] Open
Abstract
The nervous system exerts a profound influence on the function of the immune system (IS), mainly through the sympathetic arm of the autonomic nervous system. In fact, the sympathetic nervous system richly innervates secondary lymphoid organs (SLOs) such as the spleen and lymph nodes. For decades, different research groups working in the field have consistently reported changes in the sympathetic innervation of the SLOs during the activation of the IS, which are characterized by a decreased noradrenergic activity and retraction of these fibers. Most of these groups interpreted these changes as a pathological phenomenon, referred to as "damage" or "injury" of the noradrenergic fibers. Some of them postulated that this "injury" was probably due to toxic effects of released endogenous mediators. Others, working on animal models of chronic stimulation of the IS, linked it to the very chronic nature of processes. Unlike these views, this first part of the present work reviews evidence which supports the hypothesis of a specific adaptive mechanism of neural plasticity from sympathetic fibers innervating SLOs, encompassing structural and functional changes of noradrenergic nerves. This plasticity mechanism would involve segmental retraction and degeneration of these fibers during the activation of the IS with subsequent regeneration once the steady state is recovered. The candidate molecules likely to mediate this phenomenon are also here introduced. The second part will extend this view as to the potential changes in sympathetic innervation likely to occur in inflamed non-lymphoid peripheral tissues and its possible immunological implications.
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The mouse autonomic nervous system modulates inflammation and epithelial renewal after corneal abrasion through the activation of distinct local macrophages. Mucosal Immunol 2018; 11:1496-1511. [PMID: 29988115 DOI: 10.1038/s41385-018-0031-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 04/02/2018] [Accepted: 04/05/2018] [Indexed: 02/04/2023]
Abstract
Inflammation and reepithelialization after corneal abrasion are critical for the rapid restoration of vision and the prevention of microbial infections. However, the endogenous regulatory mechanisms are not completely understood. Here we report that the manipulation of autonomic nervous system (ANS) regulates the inflammation and healing processes. The activation of sympathetic nerves inhibited reepithelialization after corneal abrasion but increased the influx of neutrophils and the release of inflammatory cytokines. Conversely, the activation of parasympathetic nerves promoted reepithelialization and inhibited the influx of neutrophils and the release of inflammatory cytokines. Furthermore, we observed that CD64+CCR2+ macrophages in the cornea preferentially expressed the β-2 adrenergic receptor (AR), whereas CD64+CCR2- macrophages preferentially expressed the α-7 nicotinic acetylcholine receptor (α7nAChR). After abrasion, the topical administration of a β2AR agonist further enhanced the expression of the proinflammatory genes in the CD64+CCR2+ cell subset sorted from injured corneas. In contrast, the topical administration of an α7nAChR agonist further enhanced the expression of the anti-inflammatory genes in the CD64+CCR2- subset. Thus crosstalk between the ANS and local macrophage populations is necessary for the progress of corneal wound repair. Manipulation of ANS inputs to the wounded cornea may represent an alternative approach to the treatment of impaired wound healing.
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Wilke J, Schleip R, Yucesoy CA, Banzer W. Not merely a protective packing organ? A review of fascia and its force transmission capacity. J Appl Physiol (1985) 2018; 124:234-244. [DOI: 10.1152/japplphysiol.00565.2017] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Recent research indicates that fascia is capable of changing its biomechanical properties. Moreover, as it links the skeletal muscles, forming a body-wide network of multidirectional myofascial continuity, the classical conception of muscles as independent actuators has been challenged. Hence, the present synthesis review aims to characterize the mechanical relevance of the connective tissue for the locomotor system. Results of cadaveric and animal studies suggest a clinically relevant myofascial force transmission to neighboring structures within one limb (e.g., between synergists) and in the course of muscle-fascia chains (e.g., between leg and trunk). Initial in vivo trials appear to underpin these findings, demonstrating the existence of nonlocal exercise effects. However, the factors influencing the amount of transmitted force (e.g., age and physical activity) remain controversial, as well as the role of the central nervous system within the context of the observed remote exercise effects.
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Affiliation(s)
- Jan Wilke
- Department of Sports Medicine, Goethe University, Frankfurt am Main, Germany
| | - Robert Schleip
- Fascia Research Group, Neurosurgical Clinic Guenzburg of Ulm University, Ulm, Germany
| | - Can A. Yucesoy
- Institute of Biomedical Engineering, Bogazici University, Instanbul, Turkey
| | - Winfried Banzer
- Department of Sports Medicine, Goethe University, Frankfurt am Main, Germany
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Zhou L, Li Y, Li X, Chen G, Liang H, Wu Y, Tong J, Ouyang W. Propranolol Attenuates Surgical Stress-Induced Elevation of the Regulatory T Cell Response in Patients Undergoing Radical Mastectomy. THE JOURNAL OF IMMUNOLOGY 2016; 196:3460-9. [PMID: 26969754 DOI: 10.4049/jimmunol.1501677] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 02/11/2016] [Indexed: 12/27/2022]
Abstract
Surgical stress and inflammatory response induce the release of catecholamines and PGs, which may be key factors in facilitating cancer recurrence through immunosuppression. Animal studies have suggested the efficacy of perioperative blockades of catecholamines and PGs in reducing immunosuppression. In this study, to our knowledge, we present the first report of the effects of perioperative propranolol and/or parecoxib on peripheral regulatory T cells (Tregs) in breast cancer patients. Patients were randomly assigned to control, propranolol, parecoxib, and propranolol plus parecoxib groups. We demonstrated that levels of circulating epinephrine, norepinephrine, and PGE2increased in response to surgery. Meanwhile, peripheral FOXP3 mRNA level and Treg frequencies were elevated on postoperative day 7. Propranolol administration, rather than parecoxib, attenuated such elevation of Tregs, indicating the critical roles for catecholamines in surgery-induced promotion of Tregs. Besides, propranolol plus parecoxib treatment demonstrated no additive or synergistic effects. Furthermore, a study of Treg activity on CD4(+)T cell responses to specific tumor Ags was performed in the control and propranolol groups. Propranolol abrogated the increased Treg activity and accompanying suppression of CD4(+)T cell responses after surgery. Finally, we conducted ex vivo experiments on the effects of varying concentrations of epinephrine and/or propranolol on Treg proliferation over PBMCs from breast cancer patients, to provide further direct evidence strengthening our clinical observations. Epinephrine markedly promoted Treg proliferation, whereas propranolol prevented such enhancement effect. In conclusion, our study highlights beneficial roles for propranolol in inhibiting Treg responses in vivo and in vitro, and demonstrates that propranolol could alleviate surgical stress-induced elevation of Tregs in breast cancer patients.
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Affiliation(s)
- Lei Zhou
- Department of Anesthesiology, Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, China
| | - Yunli Li
- Department of Anesthesiology, Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, China
| | - Xiaoxiao Li
- Department of Anesthesiology, Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, China
| | - Gong Chen
- Department of Anesthesiology, Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, China
| | - Huiying Liang
- Department of Endocrinology, Second Xiangya Hospital of Central South University, Changsha 410008, Hunan, China
| | - Yuhui Wu
- Department of Breast Surgery, Xiangya Hospital of Central South University, Changsha 410008, Hunan, China;
| | - Jianbin Tong
- Department of Anesthesiology, Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, China; Medical Central Laboratory, Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, China;
| | - Wen Ouyang
- Department of Anesthesiology, Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, China; Seniors Anesthesia and Perioperative Management Research Center, Central South University, Changsha 410013, Hunan, China; and State Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha 410013, Hunan, China
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Repasky EA, Eng J, Hylander BL. Stress, metabolism and cancer: integrated pathways contributing to immune suppression. Cancer J 2015; 21:97-103. [PMID: 25815849 DOI: 10.1097/ppo.0000000000000107] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The potential for immune cells to control cancers has been recognized for many decades, but only recently has real excitement begun to spread through the oncology community following clear evidence that therapeutic blockade of specific immune-suppressive mechanisms is enough to make a real difference in survival for patients with several different advanced cancers. However, impressive and encouraging as these new clinical data are, it is clear that more effort should be devoted toward understanding the full spectrum of factors within cancer patients, which have the potential to block or weaken antitumor activity by immune cells. The goal of this brief review is to highlight recent literature revealing interactive stress and metabolic pathways, particularly those mediated by the sympathetic nervous system, which may conspire to block immune cells from unleashing their full killing potential. There is exciting new information regarding the role of neurogenesis by tumors and adrenergic signaling in cancer progression (including metabolic changes associated with cachexia and lipolysis) and in regulation of immune cell function and differentiation. However, much more work is needed to fully understand how the systemic metabolic effects mediated by the brain and nervous system can be targeted for therapeutic efficacy in the setting of immunotherapy and other cancer therapies.
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Affiliation(s)
- Elizabeth A Repasky
- From the Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY
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30
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Brinth L. Is Chronic Fatigue Syndrome/Myalgic Encephalomyelitis a Relevant Diagnosis in Patients with Suspected Side Effects to Human Papilloma Virus Vaccine? ACTA ACUST UNITED AC 2015. [DOI: 10.15406/ijvv.2015.01.00003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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31
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Decreased proportion of Foxp3+CD4+ regulatory T cells contributes to the development of hypertension in genetically hypertensive rats. J Hypertens 2015; 33:773-83; discussion 783. [DOI: 10.1097/hjh.0000000000000469] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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32
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Gigliotti JC, Huang L, Bajwa A, Ye H, Mace EH, Hossack JA, Kalantari K, Inoue T, Rosin DL, Okusa MD. Ultrasound Modulates the Splenic Neuroimmune Axis in Attenuating AKI. J Am Soc Nephrol 2015; 26:2470-81. [PMID: 25644106 DOI: 10.1681/asn.2014080769] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 12/11/2014] [Indexed: 11/03/2022] Open
Abstract
We showed previously that prior exposure to a modified ultrasound regimen prevents kidney ischemia-reperfusion injury (IRI) likely via the splenic cholinergic anti-inflammatory pathway (CAP) and α7 nicotinic acetylcholine receptors (α7nAChR). However, it is unclear how ultrasound stimulates the splenic CAP. Further investigating the role of the spleen in ischemic injury, we found that prior splenectomy (-7d) or chemical sympathectomy of the spleen with 6-hydroxydopamine (6OHDA; -14d) exacerbated injury after subthreshold (24-minute ischemia) IRI. 6-OHDA-induced splenic denervation also prevented ultrasound-induced protection of kidneys from moderate (26-minute ischemia) IRI. Ultrasound-induced protection required hematopoietic but not parenchymal α7nAChRs, as shown by experiments in bone marrow chimeras generated with wild-type and α7nAChR(-/-) mice. Ultrasound protection was associated with reduced expression of circulating and kidney-derived cytokines. However, splenocytes isolated from mice 24 hours after ultrasound treatment released more IL-6 ex vivo in response to LPS than splenocytes from sham mice. Adoptive transfer of splenocytes from ultrasound-treated (but not sham) mice to naïve mice was sufficient to protect kidneys of recipient mice from IRI. Ultrasound treatment 24 hours before cecal ligation puncture-induced sepsis was effective in reducing plasma creatinine in this model of AKI. Thus, splenocytes of ultrasound-treated mice are capable of modulating IRI in vivo, supporting our ongoing hypothesis that a modified ultrasound regimen has therapeutic potential for AKI and other inflammatory conditions.
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Affiliation(s)
- Joseph C Gigliotti
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine
| | - Liping Huang
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine
| | - Amandeep Bajwa
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine
| | - Hong Ye
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine
| | - Eric H Mace
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine
| | | | - Kambiz Kalantari
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine
| | - Tsuyoshi Inoue
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine
| | - Diane L Rosin
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine; Department of Pharmacology, University of Virginia Health System, Charlottesville, Virginia
| | - Mark D Okusa
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine;
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A unifying neuro-fasciagenic model of somatic dysfunction - underlying mechanisms and treatment - Part I. J Bodyw Mov Ther 2015; 19:310-26. [PMID: 25892388 DOI: 10.1016/j.jbmt.2015.01.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 01/06/2015] [Accepted: 01/08/2015] [Indexed: 02/06/2023]
Abstract
This paper offers an extensive review of the main fascia-mediated mechanisms underlying various dysfunctional and pathophysiological processes of clinical relevance for manual therapy. The concept of somatic dysfunction is revisited in light of the diverse fascial influences that may come into play in its genesis and maintenance. A change in perspective is thus proposed: from a nociceptive model that for decades has viewed somatic dysfunction as a neurologically-mediated phenomenon, to a unifying fascial model that integrates neural influences into a multifactorial and multidimensional interpretation of dysfunctional process as being partially, if not entirely, mediated by the fascia.
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Jarillo-Luna RA, Rivera-Aguilar V, Pacheco-Yépez J, Godínez-Victoria M, Oros-Pantoja R, Miliar-García A, Campos-Rodríguez R. Nasal IgA secretion in a murine model of acute stress. The possible role of catecholamines. J Neuroimmunol 2015; 278:223-31. [DOI: 10.1016/j.jneuroim.2014.11.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 10/14/2014] [Accepted: 11/09/2014] [Indexed: 01/23/2023]
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35
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Horvathova L, Tillinger A, Sivakova I, Mikova L, Mravec B, Bucova M. Chemical sympathectomy increases neutrophil-to-lymphocyte ratio in tumor-bearing rats but does not influence cancer progression. J Neuroimmunol 2014; 278:255-61. [PMID: 25468774 DOI: 10.1016/j.jneuroim.2014.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 11/12/2014] [Accepted: 11/14/2014] [Indexed: 12/17/2022]
Abstract
The sympathetic nervous system regulates many immune functions and modulates the anti-tumor immune defense response, too. Therefore, we studied the effect of 6-hydroxydopamine induced sympathectomy on selected hematological parameters and inflammatory markers in rats with Yoshida AH130 ascites hepatoma. We found that chemically sympathectomized tumor-bearing rats had significantly increased neutrophil-to-lymphocyte ratio, leukocyte-to-lymphocyte ratio, and plasma levels of tumor necrosis factor alpha. Although our findings showed that sympathetic denervation in tumor-bearing rats led to increased neutrophil-to-lymphocyte ratio, that is an indicator of the disease progression, we found no significant changes in tumor growth and survival of sympathectomized tumor-bearing rats.
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Affiliation(s)
- Lubica Horvathova
- Institute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, 833 06 Bratislava, Slovakia.
| | - Andrej Tillinger
- Institute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, 833 06 Bratislava, Slovakia
| | - Ivana Sivakova
- Institute of Anatomy, Faculty of Medicine, Comenius University, Sasinkova 2, 811 08 Bratislava, Slovakia
| | - Lucia Mikova
- Institute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, 833 06 Bratislava, Slovakia; Institute of Physiology, Faculty of Medicine, Comenius University, Sasinkova 2, 811 08 Bratislava, Slovakia
| | - Boris Mravec
- Institute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, 833 06 Bratislava, Slovakia; Institute of Physiology, Faculty of Medicine, Comenius University, Sasinkova 2, 811 08 Bratislava, Slovakia
| | - Maria Bucova
- Institute of Immunology, Faculty of Medicine, Comenius University, Odborarske namestie 14, 811 08 Bratislava, Slovakia
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Eng JWL, Kokolus KM, Reed CB, Hylander BL, Ma WW, Repasky EA. A nervous tumor microenvironment: the impact of adrenergic stress on cancer cells, immunosuppression, and immunotherapeutic response. Cancer Immunol Immunother 2014; 63:1115-28. [PMID: 25307152 DOI: 10.1007/s00262-014-1617-9] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 09/27/2014] [Indexed: 02/06/2023]
Abstract
Long conserved mechanisms maintain homeostasis in living creatures in response to a variety of stresses. However, continuous exposure to stress can result in unabated production of stress hormones, especially catecholamines, which can have detrimental health effects. While the long-term effects of chronic stress have well-known physiological consequences, recent discoveries have revealed that stress may affect therapeutic efficacy in cancer. Growing epidemiological evidence reveals strong correlations between progression-free and long-term survival and β-blocker usage in cancer patients. In this review, we summarize the current understanding of how the catecholamines, epinephrine and norepinephrine, affect cancer cell survival and tumor progression. We also highlight new data exploring the potential contributions of stress to immunosuppression in the tumor microenvironment and the implications of these findings for the efficacy of immunotherapies.
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Affiliation(s)
- Jason W-L Eng
- Department of Immunology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, 14263, USA
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Pre-existing hypertension dominates γδT cell reduction in human ischemic stroke. PLoS One 2014; 9:e97755. [PMID: 24840735 PMCID: PMC4026520 DOI: 10.1371/journal.pone.0097755] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 04/24/2014] [Indexed: 02/05/2023] Open
Abstract
T lymphocytes may play an important role in the evolution of ischemic stroke. Depletion of γδT cells has been found to abrogate ischemia reperfusion injury in murine stroke. However, the role of γδT cells in human ischemic stroke is unknown. We aimed to determine γδT cell counts and γδT cell interleukin 17A (IL-17A) production in the clinical setting of ischemic stroke. We also aimed to determine the associations of γδT cell counts with ischemic lesion volume, measures of clinical severity and with major stroke risk factors. Peripheral blood samples from 43 acute ischemic stroke patients and 26 control subjects matched on race and gender were used for flow cytometry and complete blood count analyses. Subsequently, cytokine levels and gene expression were measured in γδT cells. The number of circulating γδT cells was decreased by almost 50% (p = 0.005) in the stroke patients. γδT cell counts did not correlate with lesion volume on magnetic resonance diffusion-weighted imaging or with clinical severity in the stroke patients, but γδT cells showed elevated levels of IL-17A (p = 0.048). Decreased γδT cell counts were also associated with older age (p = 0.004), pre-existing hypertension (p = 0.0005) and prevalent coronary artery disease (p = 0.03), with pre-existing hypertension being the most significant predictor of γδT cell counts in a multivariable analysis. γδT cells in human ischemic stroke are reduced in number and show elevated levels of IL-17A. A major reduction in γδT lymphocytes also occurs in hypertension and may contribute to the development of hypertension-mediated stroke and vascular disease.
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Wirth T, Westendorf AM, Bloemker D, Wildmann J, Engler H, Mollerus S, Wadwa M, Schäfer MKH, Schedlowski M, del Rey A. The sympathetic nervous system modulates CD4(+)Foxp3(+) regulatory T cells via noradrenaline-dependent apoptosis in a murine model of lymphoproliferative disease. Brain Behav Immun 2014; 38:100-10. [PMID: 24440144 DOI: 10.1016/j.bbi.2014.01.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 01/04/2014] [Accepted: 01/09/2014] [Indexed: 01/22/2023] Open
Abstract
The sympathetic nervous system (SNS) plays a crucial role in the course and development of autoimmune disease in Fas-deficient lpr/lpr mice. As regulatory T cells (Tregs) are considered important modulators of autoimmune processes, we analyzed the interaction between the SNS and Tregs in this murine model of lymphoproliferative disease. We found that the percentage of Tregs among CD4(+) T cells is increased in the spleen, lymph nodes, and thymus of lpr/lpr mice as compared to age-matched C57Bl/6J (B6) mice. Furthermore, noradrenaline (NA), the main sympathetic neurotransmitter, induced apoptosis in B6- and lpr/lpr-derived Tregs. NA also reduced the frequency of Foxp3(+) cells and Foxp3 mRNA expression via β2-adrenoceptor (β2-AR)-mediated mechanisms in a concentration and time-dependent manner. Destruction of peripheral sympathetic nerves by 6-hydroxydopamine significantly increased the percentage of Tregs in B6 control mice to an extent comparable to aged-matched lpr/lpr mice. The concentration of splenic NA negatively correlated with the frequency of CD4(+)Foxp3(+) Tregs. Additionally, 60days after sympathectomy, a partial recovery of NA concentrations led to Treg percentages comparable to those of intact, vehicle-treated controls. Immunohistochemical analysis of the spleen revealed localization of single Foxp3(+) Tregs in proximity to NA-producing nerve fibers, providing an interface between Tregs and the SNS. Taken together, our data suggest a relation between the degree of splenic sympathetic innervation and the size of the Treg compartment. While there are few examples of endogenous substances capable of affecting Tregs, our results provide a possible explanation of how the magnitude of the Treg compartment in the spleen can be regulated by the SNS.
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Affiliation(s)
- Timo Wirth
- Institute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, University of Duisburg-Essen, Germany; Department of Immunophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Philipps University of Marburg, Germany.
| | - Astrid M Westendorf
- Institute of Medical Microbiology, University Hospital Essen, University of Duisburg-Essen, Germany
| | - Dominique Bloemker
- Institute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, University of Duisburg-Essen, Germany
| | - Johannes Wildmann
- Department of Immunophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Philipps University of Marburg, Germany
| | - Harald Engler
- Institute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, University of Duisburg-Essen, Germany
| | - Sina Mollerus
- Institute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, University of Duisburg-Essen, Germany
| | - Munisch Wadwa
- Institute of Medical Microbiology, University Hospital Essen, University of Duisburg-Essen, Germany
| | - Martin K-H Schäfer
- Department of Molecular Neuroscience, Institute of Anatomy and Cell Biology, Philipps University of Marburg, Germany
| | - Manfred Schedlowski
- Institute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, University of Duisburg-Essen, Germany
| | - Adriana del Rey
- Department of Immunophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Philipps University of Marburg, Germany
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Pacheco R, Contreras F, Zouali M. The dopaminergic system in autoimmune diseases. Front Immunol 2014; 5:117. [PMID: 24711809 PMCID: PMC3968755 DOI: 10.3389/fimmu.2014.00117] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 03/05/2014] [Indexed: 01/02/2023] Open
Abstract
Bidirectional interactions between the immune and the nervous systems are of considerable interest both for deciphering their functioning and for designing novel therapeutic strategies. The past decade has brought a burst of insights into the molecular mechanisms involved in neuroimmune communications mediated by dopamine. Studies of dendritic cells (DCs) revealed that they express the whole machinery to synthesize and store dopamine, which may act in an autocrine manner to stimulate dopamine receptors (DARs). Depending on specific DARs stimulated on DCs and T cells, dopamine may differentially favor CD4+ T cell differentiation into Th1 or Th17 inflammatory cells. Regulatory T cells can also release high amounts of dopamine that acts in an autocrine DAR-mediated manner to inhibit their suppressive activity. These dopaminergic regulations could represent a driving force during autoimmunity. Indeed, dopamine levels are altered in the brain of mouse models of multiple sclerosis (MS) and lupus, and in inflamed tissues of patients with inflammatory bowel diseases or rheumatoid arthritis (RA). The distorted expression of DARs in peripheral lymphocytes of lupus and MS patients also supports the importance of dopaminergic regulations in autoimmunity. Moreover, dopamine analogs had beneficial therapeutic effects in animal models, and in patients with lupus or RA. We propose models that may underlie key roles of dopamine and its receptors in autoimmune diseases.
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Affiliation(s)
- Rodrigo Pacheco
- Laboratory of Neuroimmunology, Fundación Ciencia & Vida , Santiago , Chile ; Programa de Biomedicina, Universidad San Sebastián , Santiago , Chile
| | - Francisco Contreras
- Laboratory of Neuroimmunology, Fundación Ciencia & Vida , Santiago , Chile ; Universidad Andrés Bello, Facultad de Ciencias Biológicas , Santiago , Chile
| | - Moncef Zouali
- INSERM UMR 1132 , Paris , France ; University Paris Diderot , Paris , France
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Bellinger DL, Lorton D. Autonomic regulation of cellular immune function. Auton Neurosci 2014; 182:15-41. [PMID: 24685093 DOI: 10.1016/j.autneu.2014.01.006] [Citation(s) in RCA: 145] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 01/17/2014] [Indexed: 12/21/2022]
Abstract
The nervous system and the immune system (IS) are two integrative systems that work together to detect threats and provide host defense, and to maintain/restore homeostasis. Cross-talk between the nervous system and the IS is vital for health and well-being. One of the major neural pathways responsible for regulating host defense against injury and foreign antigens and pathogens is the sympathetic nervous system (SNS). Stimulation of adrenergic receptors (ARs) on immune cells regulates immune cell development, survival, proliferative capacity, circulation, trafficking for immune surveillance and recruitment, and directs the cell surface expression of molecules and cytokine production important for cell-to-cell interactions necessary for a coordinated immune response. Finally, AR stimulation of effector immune cells regulates the activational state of immune cells and modulates their functional capacity. This review focuses on our current understanding of the role of the SNS in regulating host defense and immune homeostasis. SNS regulation of IS functioning is a critical link to the development and exacerbation of chronic immune-mediated diseases. However, there are many mechanisms that need to be further unraveled in order to develop sound treatment strategies that act on neural-immune interaction to resolve or prevent chronic inflammatory diseases, and to improve health and quality of life.
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Affiliation(s)
- Denise L Bellinger
- Department of Pathology and Human Anatomy, Loma Linda University, School of Medicine, Loma Linda, CA, 92350, USA.
| | - Dianne Lorton
- College of Arts and Sciences, Kent State University and the Kent Summa Initiative for Clinical and Translational Research, Summa Health System, Akron, OH 44304, USA
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McLachlan EM, Hu P. Inflammation in dorsal root ganglia after peripheral nerve injury: effects of the sympathetic innervation. Auton Neurosci 2013; 182:108-17. [PMID: 24418114 DOI: 10.1016/j.autneu.2013.12.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Accepted: 12/11/2013] [Indexed: 12/26/2022]
Abstract
Following a peripheral nerve injury, a sterile inflammation develops in sympathetic and dorsal root ganglia (DRGs) with axons that project in the damaged nerve trunk. Macrophages and T-lymphocytes invade these ganglia where they are believed to release cytokines that lead to hyperexcitability and ectopic discharge, possibly contributing to neuropathic pain. Here, we examined the role of the sympathetic innervation in the inflammation of L5 DRGs of Wistar rats following transection of the sciatic nerve, comparing the effects of specific surgical interventions 10-14 days prior to the nerve lesion with those of chronic administration of adrenoceptor antagonists. Immunohistochemistry was used to define the invading immune cell populations 7 days after sciatic transection. Removal of sympathetic activity in the hind limb by transecting the preganglionic input to the relevant lumbar sympathetic ganglia (ipsi- or bilateral decentralization) or by ipsilateral removal of these ganglia with degeneration of postganglionic axons (denervation), caused less DRG inflammation than occurred after a sham sympathectomy. By contrast, denervation of the lymph node draining the lesion site potentiated T-cell influx. Systemic treatment with antagonists of α1-adrenoceptors (prazosin) or β-adrenoceptors (propranolol) led to opposite but unexpected effects on infiltration of DRGs after sciatic transection. Prazosin potentiated the influx of macrophages and CD4(+) T-lymphocytes whereas propranolol tended to reduce immune cell invasion. These data are hard to reconcile with many in vitro studies in which catecholamines acting mainly via β2-adrenoceptors have inhibited the activation and proliferation of immune cells following an inflammatory challenge.
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Affiliation(s)
- Elspeth M McLachlan
- Neuroscience Research Australia, Randwick, NSW 2031, and the University of New South Wales, Sydney, NSW 2052, Australia.
| | - Ping Hu
- Neuroscience Research Australia, Randwick, NSW 2031, and the University of New South Wales, Sydney, NSW 2052, Australia
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Altered sympathetic-to-immune cell signaling via β₂-adrenergic receptors in adjuvant arthritis. Clin Dev Immunol 2013; 2013:764395. [PMID: 24194774 PMCID: PMC3806360 DOI: 10.1155/2013/764395] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Accepted: 08/02/2013] [Indexed: 01/08/2023]
Abstract
Adjuvant-induced arthritic (AA) differentially affects norepinephrine concentrations in immune organs, and in vivo β-adrenergic receptor (β-AR) agonist treatment distinctly regulates ex vivo cytokine profiles in different immune organs. We examined the contribution of altered β-AR functioning in AA to understand these disparate findings. Twenty-one or 28 days after disease induction, we examined β2-AR expression in spleen and draining lymph nodes (DLNs) for the arthritic limbs using radioligand binding and western blots and splenocyte β-AR-stimulated cAMP production using enzyme-linked immunoassay (EIA). During severe disease, β-AR agonists failed to induce splenocyte cAMP production, and β-AR affinity and density declined, indicating receptor desensitization and downregulation. Splenocyte β2-AR phosphorylation (pβ2-AR) by protein kinase A (pβ2-ARPKA) decreased in severe disease, and pβ2-AR by G protein-coupled receptor kinases (pβ2-ARGRK) increased in chronic disease. Conversely, in DLN cells, pβ2-ARPKA rose during severe disease, but fell during chronic disease, and pβ2-ARGRK increased during both disease stages. A similar pβ2-AR pattern in DLN cells with the mycobacterial cell wall component of complete Freund's adjuvant suggests that pattern recognition receptors (i.e., toll-like receptors) are important for DLN pβ2-AR patterns. Collectively, our findings indicate lymphoid organ- and disease stage-specific sympathetic dysregulation, possibly explaining immune compartment-specific differences in β2-AR-mediated regulation of cytokine production in AA and rheumatoid arthritis.
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Towards a 'systems'-level understanding of the nervous system and its disorders. Trends Neurosci 2013; 36:674-84. [PMID: 23988221 DOI: 10.1016/j.tins.2013.07.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 07/17/2013] [Accepted: 07/24/2013] [Indexed: 12/26/2022]
Abstract
It is becoming clear that nervous system development and adult functioning are highly coupled with other physiological systems. Accordingly, neurological and psychiatric disorders are increasingly being associated with a range of systemic comorbidities including, most prominently, impairments in immunological and bioenergetic parameters as well as in the gut microbiome. Here, we discuss various aspects of the dynamic crosstalk between these systems that underlies nervous system development, homeostasis, and plasticity. We believe a better definition of this underappreciated systems physiology will yield important insights into how nervous system diseases with systemic comorbidities arise and potentially identify novel diagnostic and therapeutic strategies.
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Straub RH, Bijlsma JWJ, Masi A, Cutolo M. Role of neuroendocrine and neuroimmune mechanisms in chronic inflammatory rheumatic diseases--the 10-year update. Semin Arthritis Rheum 2013; 43:392-404. [PMID: 23731531 DOI: 10.1016/j.semarthrit.2013.04.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 04/04/2013] [Accepted: 04/13/2013] [Indexed: 12/20/2022]
Abstract
BACKGROUND Neuroendocrine immunology in musculoskeletal diseases is an emerging scientific field. It deals with the aspects of efferent neuronal and neurohormonal bearing on the peripheral immune and musculoskeletal systems. This review aims to add new information that appeared since 2001. SEARCH STRATEGY The following PubMed search sentence was used to find a total of 15,462 references between 2001 and March 2013: "(rheum* OR SLE OR vasculitis) AND (nerve OR hormone OR neurotransmitter OR neuropeptide OR steroid)." In a continuous process, year by year, this search strategy yielded relevant papers that were screened and collected in a database, which build the platform of this review. RESULTS The main findings are the anti-inflammatory role of androgens, the loss of androgens (androgen drain), the bimodal role of estrogens (support B cells and inhibit macrophages and T cells), increased conversion of androgens to estrogens in inflammation (androgen drain), disturbances of the gonadal axis, inadequate amount of HPA axis hormones relative to inflammation (disproportion principle), biologics partly improve neuroendocrine axes, anti-corticotropin-releasing hormone therapies improve inflammation (antalarmin), bimodal role of the sympathetic nervous system (proinflammatory early, anti-inflammatory late-most probably due to catecholamine-producing local cells), anti-inflammatory role of alpha melanocyte-stimulating hormone, vasoactive intestinal peptide, and the Vagus nerve via α7 nicotinergic receptors. Circadian rhythms of hypothalamic origin are responsible for circadian rhythms of symptoms (neuroimmune link revealed). Important new pain-sensitizing immunological pathways were found in the last decade. CONCLUSIONS The last decade brought much new information that gave birth to the first therapies of chronic inflammatory diseases on the basis of neuroendocrine immune targets. In addition, a new theory linked evolutionary medicine, neuroendocrine regulation of distribution of energy-rich fuels, and volume regulation that can explain many disease sequelae in patients with chronic inflammatory diseases.
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Affiliation(s)
- Rainer H Straub
- Laboratory of Experimental Rheumatology and Neuroendocrino-Immunology, Division of Rheumatology, Department of Internal Medicine I, University Hospital, Regensburg, Germany.
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Taking stock of the evidence. J Bodyw Mov Ther 2013; 17:219-20. [DOI: 10.1016/j.jbmt.2012.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 11/07/2012] [Accepted: 11/21/2012] [Indexed: 11/17/2022]
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Hunger-promoting hypothalamic neurons modulate effector and regulatory T-cell responses. Proc Natl Acad Sci U S A 2013; 110:6193-8. [PMID: 23530205 DOI: 10.1073/pnas.1210644110] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Whole-body energy metabolism is regulated by the hypothalamus and has an impact on diverse tissue functions. Here we show that selective knockdown of Sirtuin 1 Sirt1 in hypothalamic Agouti-related peptide-expressing neurons, which renders these cells less responsive to cues of low energy availability, significantly promotes CD4(+) T-cell activation by increasing production of T helper 1 and 17 proinflammatory cytokines via mediation of the sympathetic nervous system. These phenomena were associated with an impaired thymic generation of forkhead box P3 (FoxP3(+)) naturally occurring regulatory T cells and their reduced suppressive capacity in the periphery, which resulted in increased delayed-type hypersensitivity responses and autoimmune disease susceptibility in mice. These observations unmask a previously unsuspected role of hypothalamic feeding circuits in the regulation of adaptive immune response.
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Guereschi MG, Araujo LP, Maricato JT, Takenaka MC, Nascimento VM, Vivanco BC, Reis VO, Keller AC, Brum PC, Basso AS. Beta2-adrenergic receptor signaling in CD4+Foxp3+regulatory T cells enhances their suppressive function in a PKA-dependent manner. Eur J Immunol 2013; 43:1001-12. [DOI: 10.1002/eji.201243005] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 12/14/2012] [Accepted: 01/28/2013] [Indexed: 01/05/2023]
Affiliation(s)
- Marcia G. Guereschi
- Department of Microbiology, Immunology and Parasitology; Paulista Medical School; Federal University of São Paulo; São Paulo; Brazil
| | - Leandro P. Araujo
- Department of Microbiology, Immunology and Parasitology; Paulista Medical School; Federal University of São Paulo; São Paulo; Brazil
| | - Juliana T. Maricato
- Department of Microbiology, Immunology and Parasitology; Paulista Medical School; Federal University of São Paulo; São Paulo; Brazil
| | - Maisa C. Takenaka
- Department of Microbiology, Immunology and Parasitology; Paulista Medical School; Federal University of São Paulo; São Paulo; Brazil
| | - Vanessa M. Nascimento
- Department of Microbiology, Immunology and Parasitology; Paulista Medical School; Federal University of São Paulo; São Paulo; Brazil
| | - Bruno C. Vivanco
- Department of Microbiology, Immunology and Parasitology; Paulista Medical School; Federal University of São Paulo; São Paulo; Brazil
| | - Vanessa O. Reis
- Department of Microbiology, Immunology and Parasitology; Paulista Medical School; Federal University of São Paulo; São Paulo; Brazil
| | - Alexandre C. Keller
- Department of Microbiology, Immunology and Parasitology; Paulista Medical School; Federal University of São Paulo; São Paulo; Brazil
| | - Patrícia C. Brum
- School of Physical Education and Sport; University of São Paulo; São Paulo; Brazil
| | - Alexandre S. Basso
- Department of Microbiology, Immunology and Parasitology; Paulista Medical School; Federal University of São Paulo; São Paulo; Brazil
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The importance of the nurse cells and regulatory cells in the control of T lymphocyte responses. BIOMED RESEARCH INTERNATIONAL 2012; 2013:352414. [PMID: 23509712 PMCID: PMC3591132 DOI: 10.1155/2013/352414] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 10/12/2012] [Indexed: 11/17/2022]
Abstract
T lymphocytes from the immune system are bone marrow-derived cells whose development and activities are carefully supervised by two sets of accessory cells. In the thymus, the immature young T lymphocytes are engulfed by epithelial “nurse cells” and retained in vacuoles, where most of them (95%) are negatively selected and removed when they have an incomplete development or express high affinity autoreactive receptors. The mature T lymphocytes that survive to this selection process leave the thymus and are controlled in the periphery by another subpopulation of accessory cells called “regulatory cells,” which reduce any excessive immune response and the risk of collateral injuries to healthy tissues. By different times and procedures, nurse cells and regulatory cells control both the development and the functions of T lymphocyte subpopulations. Disorders in the T lymphocytes development and migration have been observed in some parasitic diseases, which disrupt the thymic microenvironment of nurse cells. In other cases, parasites stimulate rather than depress the functions of regulatory T cells decreasing T-mediated host damages. This paper is a short review regarding some features of these accessory cells and their main interactions with T immature and mature lymphocytes. The modulatory role that neurotransmitters and hormones play in these interactions is also revised.
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Abstract
The peripheral nervous system takes an active part in inflammatory processes by regulating effector cell function and reallocation of energy to the immune system. During acute inflammation, rapid neuronal reorganization and change of activity takes place. The hallmarks of this process are an increase in systemic sympathetic activity, a decrease in systemic parasympathetic activity and loss of sympathetic nerve fibres from sites of inflammation concomitant with increased innervation with sensory nerve fibres and increased sensory nerve fibre activity. On a systemic level, the increase in sympathetic activity (and decrease in parasympathetic activity) is necessary to provide enough energy to nourish the activated immune system. In locally inflamed tissue, the decrease in sympathetic nerve fibre density results in reduced anti-inflammatory signalling and, together with neuropeptides released from sensory nerve fibres, promotes local inflammation. In acute inflammation, this 'inflammatory configuration' of the peripheral nervous system favours the rapid clearance of antigenic threats. However, in chronic autoimmune inflammation, these changes of the peripheral nervous system lead to an unfavourable situation with ongoing energy reallocation and continuous local destruction. As an example of a chronic inflammatory condition, we discuss evidence for neuroimmune regulation in autoimmune arthritis with a focus on the sympathetic nervous system.
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End-point effector stress mediators in neuroimmune interactions: their role in immune system homeostasis and autoimmune pathology. Immunol Res 2012; 52:64-80. [PMID: 22396175 DOI: 10.1007/s12026-012-8275-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Much evidence has identified a direct anatomical and functional link between the brain and the immune system, with glucocorticoids (GCs), catecholamines (CAs), and neuropeptide Y (NPY) as its end-point mediators. This suggests the important role of these mediators in immune system homeostasis and the pathogenesis of inflammatory autoimmune diseases. However, although it is clear that these mediators can modulate lymphocyte maturation and the activity of distinct immune cell types, their putative role in the pathogenesis of autoimmune disease is not yet completely understood. We have contributed to this field by discovering the influence of CAs and GCs on fine-tuning thymocyte negative selection and, in particular, by pointing to the putative CA-mediated mechanisms underlying this influence. Furthermore, we have shown that CAs are implicated in the regulation of regulatory T-cell development in the thymus. Moreover, our investigations related to macrophage biology emphasize the complex interaction between GCs, CAs and NPY in the modulation of macrophage functions and their putative significance for the pathogenesis of autoimmune inflammatory diseases.
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