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Grassmann S, Santosa EK, Mujal AM, Kim H, Fan SX, Owyong M, Lau CM, Sun JC. Early antigen receptor signaling in natural killer cells alters STAT4-dependent fate decisions via epigenetic remodeling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.07.565992. [PMID: 37986752 PMCID: PMC10659287 DOI: 10.1101/2023.11.07.565992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Natural Killer (NK) cells are innate cytotoxic lymphocytes that possess features of adaptive immunity, including antigen specificity and clonal expansion. NK cells rapidly respond to cytokines released during the innate phase of viral infection and are thought to migrate from circulation into infected organs to execute their early effector functions. However, recent evidence suggests that tissue-resident NK cells are among the first responders to viral infection. In this study, we observe that antigen receptor signaling precedes substantial proinflammatory cytokine signaling in a population of NK cells during mouse cytomegalovirus infection. Early antigen receptor signals epigenetically prime NK cells for optimal expansion during the later adaptive phase of the antiviral response. Mechanistically, receptor signaling increases chromatin accessibility at STAT4-binding genomic sites within differentiating NK cells. To promote adaptive programming of NK cells during infection, activating receptor-dependent epigenetic remodeling antagonizes IL-12 driven terminal maturation, poises NK cells for proliferation via sustained CDK6 expression, and antagonizes early apoptosis of short-lived effector cells via suppression of Bim. Thus, antigen receptor signaling alters an IL-12 dependent fate decision during the innate-to-adaptive transition of antiviral NK cells.
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Liu G, Zhou X, Zhang L, Zou Y, Xue J, Xia R, Abuduxiku N, Xuejing Gan, Liu R, Chen Z, Cao Y, Chen Z. Cell-free immunomodulatory biomaterials mediated in situ periodontal multi-tissue regeneration and their immunopathophysiological processes. Mater Today Bio 2022; 16:100432. [PMID: 36204216 PMCID: PMC9530615 DOI: 10.1016/j.mtbio.2022.100432] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 12/04/2022]
Abstract
Cell-free biomaterials-inducing endogenous in situ multi-tissue regeneration is very challenging and applying advanced immunomodulatory biomaterials can be an effective strategy to overcome it. In-depth knowledge of the immunopathophysiological mechanisms should be acquired before applying such an immunomodulation strategy. In this study, we implanted different immunoregulatory cell-free biomaterials into periodontal multi-tissue defects and showed that the outcome of multi-tissue regeneration is closely regulated by the immune reaction. The underlying immunopathophysiological processes, including the blood clotting response and fibrinoid necrosis, innate and adaptive immune response, local and systemic immune reaction, growth factors release, and stem cells recruitment, were revealed. The implantation of biomaterials with anti-inflammatory properties could direct the immunopathophysiological process and make it more favorable for in situ multi-tissue regeneration, ultimately enabling the regeneration of the periodontal ligament, the acellular cementum matrix, and the alveolar bone in the periodontium. These findings further confirm the effectiveness of immunomodulatory based strategy and the unveiling of their immunopathophysiological processes could provide some favorable theoretical bases for the development of advanced cell-free immunomodulatory multi-tissue regenerative biomaterials.
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Palmroth M, Kuuliala K, Peltomaa R, Virtanen A, Kuuliala A, Kurttila A, Kinnunen A, Leirisalo-Repo M, Silvennoinen O, Isomäki P. Tofacitinib Suppresses Several JAK-STAT Pathways in Rheumatoid Arthritis In Vivo and Baseline Signaling Profile Associates With Treatment Response. Front Immunol 2021; 12:738481. [PMID: 34630419 PMCID: PMC8498592 DOI: 10.3389/fimmu.2021.738481] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/01/2021] [Indexed: 12/03/2022] Open
Abstract
Objective Current knowledge on the actions of tofacitinib on cytokine signaling pathways in rheumatoid arthritis (RA) is based on in vitro studies. Our study is the first to examine the effects of tofacitinib treatment on Janus kinase (JAK) - signal transducer and activator of transcription (STAT) pathways in vivo in patients with RA. Methods Sixteen patients with active RA, despite treatment with conventional synthetic disease-modifying antirheumatic drugs (csDMARDs), received tofacitinib 5 mg twice daily for three months. Levels of constitutive and cytokine-induced phosphorylated STATs in peripheral blood monocytes, T cells and B cells were measured by flow cytometry at baseline and three-month visits. mRNA expression of JAKs, STATs and suppressors of cytokine signaling (SOCS) were measured from peripheral blood mononuclear cells (PBMCs) by quantitative PCR. Association of baseline signaling profile with treatment response was also investigated. Results Tofacitinib, in csDMARDs background, decreased median disease activity score (DAS28) from 4.4 to 2.6 (p < 0.001). Tofacitinib treatment significantly decreased cytokine-induced phosphorylation of all JAK-STAT pathways studied. However, the magnitude of the inhibitory effect depended on the cytokine and cell type studied, varying from 10% to 73% inhibition following 3-month treatment with tofacitinib. In general, strongest inhibition by tofacitinib was observed with STAT phosphorylations induced by cytokines signaling through the common-γ-chain cytokine receptor in T cells, while lowest inhibition was demonstrated for IL-10 -induced STAT3 phosphorylation in monocytes. Constitutive STAT1, STAT3, STAT4 and STAT5 phosphorylation in monocytes and/or T cells was also downregulated by tofacitinib. Tofacitinib treatment downregulated the expression of several JAK-STAT pathway components in PBMCs, SOCSs showing the strongest downregulation. Baseline STAT phosphorylation levels in T cells and monocytes and SOCS3 expression in PBMCs correlated with treatment response. Conclusions Tofacitinib suppresses multiple JAK-STAT pathways in cytokine and cell population specific manner in RA patients in vivo. Besides directly inhibiting JAK activation, tofacitinib downregulates the expression of JAK-STAT pathway components. This may modulate the effects of tofacitinib on JAK-STAT pathway activation in vivo and explain some of the differential findings between the current study and previous in vitro studies. Finally, baseline immunological markers associate with the treatment response to tofacitinib.
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Affiliation(s)
- Maaria Palmroth
- Molecular Immunology Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Krista Kuuliala
- Department of Bacteriology and Immunology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Ritva Peltomaa
- Department of Rheumatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Anniina Virtanen
- Molecular Immunology Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Antti Kuuliala
- Department of Bacteriology and Immunology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Antti Kurttila
- Molecular Immunology Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Anna Kinnunen
- Centre for Rheumatic Diseases, Tampere University Hospital, Tampere, Finland
| | - Marjatta Leirisalo-Repo
- Department of Rheumatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Olli Silvennoinen
- Molecular Immunology Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Fimlab Laboratories, Pirkanmaa Hospital District, Tampere, Tampere, Finland
- Institute of Biotechnology, HiLIFE Helsinki Institute of Life Sciences, University of Helsinki, Helsinki, Finland
| | - Pia Isomäki
- Molecular Immunology Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Centre for Rheumatic Diseases, Tampere University Hospital, Tampere, Finland
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Sharma D, Farrar JD. Adrenergic regulation of immune cell function and inflammation. Semin Immunopathol 2020; 42:709-717. [PMID: 33219396 PMCID: PMC7678770 DOI: 10.1007/s00281-020-00829-6] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 11/14/2020] [Indexed: 02/06/2023]
Abstract
The sympathetic nervous system integrates the functions of multiple organ systems by regulating their autonomic physiological activities. The immune system is regulated both locally and systemically by the neurotransmitters epinephrine and norepinephrine secreted by the adrenal gland and local sympathetic neurons. Immune cells respond by activation of adrenergic receptors, primarily the β2-adrenergic receptor, which signal through heterotrimeric G-proteins. Depending upon the cell type, adrenergic signaling regulates a variety of functions in immune cells ranging from cellular migration to cytokine secretion. Furthermore, due to the diurnal oscillation of systemic norepinephrine levels, various immune functions follow a circadian rhythmic pattern. This review will highlight recent advances in our understanding of how the sympathetic nervous system regulates both innate and adaptive immune functions and how this regulation is linked to circadian rhythms.
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Affiliation(s)
- Drashya Sharma
- Department of Immunology, UT Southwestern Medical Center, Dallas, TX, USA
| | - J David Farrar
- Department of Immunology, UT Southwestern Medical Center, Dallas, TX, USA.
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Rowe RK, Pyle DM, Farrar JD, Gill MA. IgE-mediated regulation of IL-10 and type I IFN enhances rhinovirus-induced Th2 differentiation by primary human monocytes. Eur J Immunol 2020; 50:1550-1559. [PMID: 32383224 DOI: 10.1002/eji.201948396] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 03/18/2020] [Accepted: 05/04/2020] [Indexed: 11/08/2022]
Abstract
Rhinovirus (RV) infections are linked to the development and exacerbation of allergic diseases including allergic asthma. IgE, another contributor to atopic disease pathogenesis, has been shown to regulate DC antiviral functions and influence T cell priming by monocytes. We previously demonstrated that IgE-mediated stimulation of monocytes alters multiple cellular functions including cytokine secretion, phagocytosis, and influenza-induced Th1 development. In this study, we investigate the effects of IgE-mediated stimulation on monocyte-driven, RV-induced T cell development utilizing primary human monocyte-T cell co-cultures. We demonstrate that IgE crosslinking of RV-exposed monocytes enhances monocyte-driven Th2 differentiation. This increase in RV-induced Th2 development was regulated by IgE-mediated inhibition of virus-induced type I IFN and induction of IL-10. These findings suggest an additional mechanism by which two clinically significant risk factors for allergic disease exacerbations-IgE-mediated stimulation and rhinovirus infection-may synergistically promote Th2 differentiation and allergic inflammation.
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Affiliation(s)
- Regina K Rowe
- Departments of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas.,Departments of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas.,Departments of Immunology, University of Texas Southwestern Medical Center, Dallas, Texas.,Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - David M Pyle
- Departments of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas.,Departments of Immunology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - J David Farrar
- Departments of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Michelle A Gill
- Departments of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas.,Departments of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas.,Departments of Immunology, University of Texas Southwestern Medical Center, Dallas, Texas
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6
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Liu Y, Li J, Wang S, Song H, Yu T. STAT4-mediated down-regulation of miR-3619-5p facilitates stomach adenocarcinoma by modulating TBC1D10B. Cancer Biol Ther 2020; 21:656-664. [PMID: 32397798 DOI: 10.1080/15384047.2020.1754690] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) as the subtype of non-coding RNAs are revealed to be crucial players in cellular activities. It has been reported that miR-3619-5p functions as a tumor inhibitor in several cancers. However, the connection between miR-3619-5p and stomach adenocarcinoma (STAD) remains to be discovered. AIM OF THE STUDY The purpose of the study is to figure out the role and molecular regulation mechanism of miR-3619-5p in STAD. METHODS The expression of miR-3619-5p was evaluated via qRT-PCR analysis. Gain-of-function experiments demonstrated the effects of miR-3619-5p on cellular functions. The upper-stream transcription factor STAT4 and downstream target gene TBC1D10B of miR-3619-5p were identified by bioinformatic analysis. The binding and interaction between the indicated molecules were verified by RNA pull-down and luciferase reporter assays. RESULTS The expression of miR-3619-5p was prominently down-regulated in STAD cells and tissues. MiR-3619-5p suppresses cell proliferation, migration, invasion and tumor growth in STAD. Further, STAT4 bound with miR-3619-5p promoter and inhibited its transcription. MiR-3619-5p was also recognized to modulate STAD progression through the regulation of downstream target gene TBC1D10B. CONCLUSION STAT4-mediated miR-3619-5p controls STAD carcinogenesis and progression through modulating TBC1D10B expression, which may provide a novel insight for researching the STAD-related molecular mechanism.
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Affiliation(s)
- Yinhua Liu
- Department of Pathology, Wannan Medical College First Affiliated Hospital, Yijishan Hospital , Wuhu, Anhui Province, China
| | - Jiaping Li
- Department of Cardiothoracic Surgery, Wannan Medical College First Affiliated Hospital, Yijishan Hospital , Wuhu, Anhui Province, China
| | - Sufeng Wang
- Department of Pathology, Wannan Medical College First Affiliated Hospital, Yijishan Hospital , Wuhu, Anhui Province, China
| | - Hong Song
- Department of Pathology, Wannan Medical College First Affiliated Hospital, Yijishan Hospital , Wuhu, Anhui Province, China
| | - Tao Yu
- Department of Neurosurgical Intensive Care Unit, Wannan Medical College First Affiliated Hospital, Yijishan Hospital , Wuhu, Anhui Province, China.,Research Center for Functional Maintenance and Reconstruction of Viscera, Wannan Medical College First Affiliated Hospital, Yijishan Hospital , Wuhu, Anhui Province, China
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Yang C, Mai H, Peng J, Zhou B, Hou J, Jiang D. STAT4: an immunoregulator contributing to diverse human diseases. Int J Biol Sci 2020; 16:1575-1585. [PMID: 32226303 PMCID: PMC7097918 DOI: 10.7150/ijbs.41852] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 02/13/2020] [Indexed: 12/12/2022] Open
Abstract
Signal transducer and activator of transcription 4 (STAT4) is a member of the STAT family and localizes to the cytoplasm. STAT4 is phosphorylated after a variety of cytokines bind to the membrane, and then dimerized STAT4 translocates to the nucleus to regulate gene expression. We reviewed the essential role played by STAT4 in a wide variety of cells and the pathogenesis of diverse human diseases, especially many kinds of autoimmune and inflammatory diseases, via activation by different cytokines through the Janus kinase (JAK)-STAT signaling pathway.
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Affiliation(s)
- Chou Yang
- State Key Laboratory of Organ Failure Research, Guangdong Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, GuangZhou, China
| | - Haoming Mai
- State Key Laboratory of Organ Failure Research, Guangdong Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, GuangZhou, China
| | - Jinxin Peng
- State Key Laboratory of Organ Failure Research, Guangdong Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, GuangZhou, China
| | - Bin Zhou
- State Key Laboratory of Organ Failure Research, Guangdong Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, GuangZhou, China
| | - Jinlin Hou
- State Key Laboratory of Organ Failure Research, Guangdong Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, GuangZhou, China
| | - Deke Jiang
- State Key Laboratory of Organ Failure Research, Guangdong Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, GuangZhou, China
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Nabavi SM, Ahmed T, Nawaz M, Devi KP, Balan DJ, Pittalà V, Argüelles-Castilla S, Testai L, Khan H, Sureda A, de Oliveira MR, Vacca RA, Xu S, Yousefi B, Curti V, Daglia M, Sobarzo-Sánchez E, Filosa R, Nabavi SF, Majidinia M, Dehpour AR, Shirooie S. Targeting STATs in neuroinflammation: The road less traveled! Pharmacol Res 2018; 141:73-84. [PMID: 30550953 DOI: 10.1016/j.phrs.2018.12.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/01/2018] [Accepted: 12/10/2018] [Indexed: 12/16/2022]
Abstract
JAK/STAT transduction pathway is a highly conserved pathway implicated in regulating cellular proliferation, differentiation, survival and apoptosis. Dysregulation of this pathway is involved in the onset of autoimmune, haematological, oncological, metabolic and neurological diseases. Over the last few years, the research of anti-neuroinflammatory agents has gained considerable attention. The ability to diminish the STAT-induced transcription of inflammatory genes is documented for both natural compounds (such as polyphenols) and chemical drugs. Among polyphenols, quercetin and curcumin directly inhibit STAT, while Berberis vulgaris L. and Sophora alopecuroides L extracts act indirectly. Also, the Food and Drug Administration has approved several JAK/STAT inhibitors (direct or indirect) for treating inflammatory diseases, indicating STAT can be considered as a therapeutic target for neuroinflammatory pathologies. Considering the encouraging data obtained so far, clinical trials are warranted to demonstrate the effectiveness and potential use in the clinical practice of STAT inhibitors to treat inflammation-associated neurodegenerative pathologies.
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Affiliation(s)
- Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Touqeer Ahmed
- Neurobiology Laboratory, Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Sector H-12, Islamabad, 44000, Pakistan
| | - Maheen Nawaz
- Neurobiology Laboratory, Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Sector H-12, Islamabad, 44000, Pakistan
| | - Kasi Pandima Devi
- Department of Biotechnology, Alagappa University (Science Campus), Karaikudi 630 003, Tamil Nadu, India
| | - Devasahayam Jaya Balan
- Department of Biotechnology, Alagappa University (Science Campus), Karaikudi 630 003, Tamil Nadu, India
| | - Valeria Pittalà
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | | | - Lara Testai
- Department of Pharmacy, University of Pisa, Pisa, via Bonanno 6 - 56126, Pisa, Italy
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Antoni Sureda
- Research Group on Community Nutrition and Oxidative Stress and CIBEROBN (Physiopathology of Obesity and Nutrition), University of Balearic Islands, E-07122 Palma de Mallorca, Spain.
| | - Marcos Roberto de Oliveira
- Department of Chemistry/ICET, Federal University of Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, Cuiaba, MT, 78060-900, Brazil
| | - Rosa Anna Vacca
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Council of Research, I-70126, Bari, Italy
| | - Suowen Xu
- University of Rochester, Aab Cardiovascular Research Institute, Rochester, NY, 14623, USA
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Valeria Curti
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Maria Daglia
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Eduardo Sobarzo-Sánchez
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, 15782, Spain; Instituto de Investigación e Innovación en Salud, Facultad de Ciencias de la Salud, Universidad Central de Chile, Santiago, Chile
| | - Rosanna Filosa
- Consorzio Sannio Tech, Appia Str, Apollosa, BN 82030, Italy
| | - Seyed Fazel Nabavi
- Pharmaceutical Sciences Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran; Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Ahmad Reza Dehpour
- Department of Pharmacology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Samira Shirooie
- Department of Pharmacology, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Ağaç D, Gill MA, Farrar JD. Adrenergic Signaling at the Interface of Allergic Asthma and Viral Infections. Front Immunol 2018; 9:736. [PMID: 29696025 PMCID: PMC5904268 DOI: 10.3389/fimmu.2018.00736] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 03/26/2018] [Indexed: 12/16/2022] Open
Abstract
Upper respiratory viral infections are a major etiologic instigator of allergic asthma, and they drive severe exacerbations of allergic inflammation in the lower airways of asthma sufferers. Rhinovirus (RV), in particular, is the main viral instigator of these pathologies. Asthma exacerbations due to RV infections are the most frequent reasons for hospitalization and account for the majority of morbidity and mortality in asthma patients. In both critical care and disease control, long- and short-acting β2-agonists are the first line of therapeutic intervention, which are used to restore airway function by promoting smooth muscle cell relaxation in bronchioles. While prophylactic use of β2-agonists reduces the frequency and pathology of exacerbations, their role in modulating the inflammatory response is only now being appreciated. Adrenergic signaling is a component of the sympathetic nervous system, and the natural ligands, epinephrine and norepinephrine (NE), regulate a multitude of autonomic functions including regulation of both the innate and adaptive immune response. NE is the primary neurotransmitter released by post-ganglionic sympathetic neurons that innervate most all peripheral tissues including lung and secondary lymphoid organs. Thus, the adrenergic signaling pathways are in direct contact with both the central and peripheral immune compartments. We present a perspective on how the adrenergic signaling pathway controls immune function and how β2-agonists may influence inflammation in the context of virus-induced asthma exacerbations.
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Affiliation(s)
- Didem Ağaç
- Department of Immunology, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Michelle A Gill
- Department of Immunology, The University of Texas Southwestern Medical Center, Dallas, TX, United States.,Department of Pediatrics, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - J David Farrar
- Department of Immunology, The University of Texas Southwestern Medical Center, Dallas, TX, United States
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Jain A, Pasare C. Innate Control of Adaptive Immunity: Beyond the Three-Signal Paradigm. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2017; 198:3791-3800. [PMID: 28483987 PMCID: PMC5442885 DOI: 10.4049/jimmunol.1602000] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 03/02/2017] [Indexed: 12/14/2022]
Abstract
Activation of cells in the adaptive immune system is a highly orchestrated process dictated by multiples cues from the innate immune system. Although the fundamental principles of innate control of adaptive immunity are well established, it is not fully understood how innate cells integrate qualitative pathogenic information to generate tailored protective adaptive immune responses. In this review, we discuss complexities involved in the innate control of adaptive immunity that extend beyond TCR engagement, costimulation, and priming cytokine production but are critical for the generation of protective T cell immunity.
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Affiliation(s)
- Aakanksha Jain
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9093
| | - Chandrashekhar Pasare
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9093
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