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Feng X, Zhan H, Sokol CL. Sensory neuronal control of skin barrier immunity. Trends Immunol 2024; 45:371-380. [PMID: 38653601 PMCID: PMC11102800 DOI: 10.1016/j.it.2024.03.008] [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: 03/07/2024] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/25/2024]
Abstract
Peripheral sensory neurons recognize diverse noxious stimuli, including microbial products and allergens traditionally thought to be targets of the mammalian immune system. Activation of sensory neurons by these stimuli leads to pain and itch responses as well as the release of neuropeptides that interact with their cognate receptors expressed on immune cells, such as dendritic cells (DCs). Neuronal control of immune cell function through neuropeptide release not only affects local inflammatory responses but can impact adaptive immune responses through downstream effects on T cell priming. Numerous neuropeptide receptors are expressed by DCs but only a few have been characterized, presenting opportunities for further investigation of the pathways by which cutaneous neuroimmune interactions modulate host immunity.
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Affiliation(s)
- Xinyi Feng
- Center for Immunology & Inflammatory Diseases, Division of Rheumatology, Allergy & Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Haoting Zhan
- Center for Immunology & Inflammatory Diseases, Division of Rheumatology, Allergy & Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA; Department of Clinical Laboratory, State Key Laboratory of Complex, Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Caroline L Sokol
- Center for Immunology & Inflammatory Diseases, Division of Rheumatology, Allergy & Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.
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2
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Wheeler JJ, Williams N, Yu J, Mishra SK. Brain Natriuretic Peptide Exerts Inflammation and Peripheral Itch in a Mouse Model of Atopic Dermatitis. J Invest Dermatol 2024; 144:705-707. [PMID: 37832843 PMCID: PMC10922042 DOI: 10.1016/j.jid.2023.09.273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/08/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Affiliation(s)
- Joshua J Wheeler
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, NC State University, Raleigh, North Carolina, USA; Comparative Medicine Institute, NC State University, Raleigh, North Carolina, USA
| | - Nidha Williams
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, NC State University, Raleigh, North Carolina, USA
| | - Junho Yu
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, NC State University, Raleigh, North Carolina, USA
| | - Santosh K Mishra
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, NC State University, Raleigh, North Carolina, USA; Comparative Medicine Institute, NC State University, Raleigh, North Carolina, USA; Genetics and Genomics Academy, NC State University, Raleigh, North Carolina, USA.
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3
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Xie B, Zhang Y, Han M, Wang M, Yu Y, Chen X, Wu Y, Hashimoto K, Yuan S, Shang Y, Zhang J. Reversal of the detrimental effects of social isolation on ischemic cerebral injury and stroke-associated pneumonia by inhibiting small intestinal γδ T-cell migration into the brain and lung. J Cereb Blood Flow Metab 2023; 43:1267-1284. [PMID: 37017434 PMCID: PMC10369145 DOI: 10.1177/0271678x231167946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/09/2023] [Accepted: 03/16/2023] [Indexed: 04/06/2023]
Abstract
Social isolation (ISO) is associated with an increased risk and poor outcomes of ischemic stroke. However, the roles and mechanisms of ISO in stroke-associated pneumonia (SAP) remain unclear. Adult male mice were single- or pair-housed with an ovariectomized female mouse and then subjected to transient middle cerebral artery occlusion. Isolated mice were treated with the natriuretic peptide receptor A antagonist A71915 or anti-gamma-delta (γδ) TCR monoclonal antibody, whereas pair-housed mice were treated with recombinant human atrial natriuretic peptide (rhANP). Subdiaphragmatic vagotomy (SDV) was performed 14 days before single- or pair-housed conditions. We found that ISO significantly worsened brain and lung injuries relative to pair housing, which was partially mediated by elevated interleukin (IL)-17A levels and the migration of small intestine-derived inflammatory γδ T-cells into the brain and lung. However, rhANP treatment or SDV could ameliorate ISO-exacerbated post-stroke brain and lung damage by reducing IL-17A levels and inhibiting the migration of inflammatory γδ T-cells into the brain and lung. Our results suggest that rhANP mitigated ISO-induced exacerbation of SAP and ischemic cerebral injury by inhibiting small intestine-derived γδ T-cell migration into the lung and brain, which could be mediated by the subdiaphragmatic vagus nerve.
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Affiliation(s)
- Bing Xie
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Yujing Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Mengqi Han
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Mengyuan Wang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Yuan Yu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Xiaoyan Chen
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Yuming Wu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Kenji Hashimoto
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan
| | - Shiying Yuan
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - You Shang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Jiancheng Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
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4
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Pleiotropic Roles of Atrial Natriuretic Peptide in Anti-Inflammation and Anti-Cancer Activity. Cancers (Basel) 2022; 14:cancers14163981. [PMID: 36010974 PMCID: PMC9406604 DOI: 10.3390/cancers14163981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/07/2022] [Accepted: 08/15/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary The relationship between inflammation and carcinogenesis, as well as the response to anti-tumor therapy, is intimate. Atrial natriuretic peptides (ANPs) play a pivotal role in the homeostatic control of blood pressure, electrolytes, and water balance. In addition, ANPs exert immune-modulatory effects in the tissue microenvironment, thus exhibiting a fascinating ability to prevent inflammation-related tumorigenesis and cancer recurrence. In cancers, ANPs show anti-proliferative effects through several molecular pathways. Furthermore, ANPs attenuate the side effects of cancer therapy. Therefore, ANPs have potential therapeutic value in tumors. Here, we summarized the roles of ANPs in diverse aspects of the immune system and the molecular mechanisms underlying the anti-cancer effects of ANPs, contributing to the development of ANP-based anti-cancer agents. Abstract The atrial natriuretic peptide (ANP), a cardiovascular hormone, plays a pivotal role in the homeostatic control of blood pressure, electrolytes, and water balance and is approved to treat congestive heart failure. In addition, there is a growing realization that ANPs might be related to immune response and tumor growth. The anti-inflammatory and immune-modulatory effects of ANPs in the tissue microenvironment are mediated through autocrine or paracrine mechanisms, which further suppress tumorigenesis. In cancers, ANPs show anti-proliferative effects through several molecular pathways. Furthermore, ANPs attenuate the side effects of cancer therapy. Therefore, ANPs act on several hallmarks of cancer, such as inflammation, angiogenesis, sustained tumor growth, and metastasis. In this review, we summarized the contributions of ANPs in diverse aspects of the immune system and the molecular mechanisms underlying the anti-cancer effects of ANPs.
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Liang X, Bai Z, Wang F, Han Y, Sun H, Xiaokereti J, Zhang L, Zhou X, Lu Y, Tang B. Full-Length Transcriptome Sequencing: An Insight Into the Dog Model of Heart Failure. Front Cardiovasc Med 2021; 8:712797. [PMID: 34977163 PMCID: PMC8716442 DOI: 10.3389/fcvm.2021.712797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 11/02/2021] [Indexed: 12/30/2022] Open
Abstract
Heart failure (HF) leads to a progressive increase in morbidity and mortality rates. This study aimed to explore the transcriptional landscape during HF and identify differentially expressed transcripts (DETs) and alternative splicing events associated with HF. We generated a dog model of HF (n = 3) using right ventricular pacemaker implantation. We performed full-length transcriptome sequencing (based on nanopore platform) on the myocardial tissues and analyzed the transcripts using differential expression analysis and functional annotation methods [Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses]. Additionally, we estimated the expression of the selected genes by quantitative real-time PCR (qRT-PCR) and detected the proportion of immune cells using flow cytometry. We found that increased B-type natriuretic peptide reduced ejection fraction, and apparent clinical signs were observed in the dog model of HF. We identified 67,458 transcripts using full-length transcriptome sequencing. A total of 785 DETs were obtained from the HF and control groups. These DETs were mainly enriched in the immune responses, especially Th1, Th2, and Th17 cell differentiation processes. Furthermore, flow cytometry results revealed that the proportion of Th1 and Th17 cells increased in patients with HF compared to controls, while the proportion of Th2 cells decreased. Differentially expressed genes in the HF and control groups associated with Th1, Th2, and Th17 cell differentiation were quantified using qRT-PCR. We also identified variable splicing events of sarcomere genes (e.g., MYBPC3, TNNT2, TTN, FLNC, and TTNI3). In addition, we detected 4,892 transcription factors and 406 lncRNAs associated with HF. Our analysis based on full-length transcript sequencing provided an analysis perspective in a dog model of HF, which is valuable for molecular research in an increasingly relevant large animal model of HF.
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Affiliation(s)
- Xiaoyan Liang
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
| | - Zechen Bai
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, China
| | - Feifei Wang
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- Xinjiang First Aid Center, People's Hospital of Xinjiang Uygur Autonomous Region, Ürümqi, China
| | - Yafan Han
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
| | - Huaxin Sun
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
| | - Jiasuoer Xiaokereti
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
| | - Ling Zhang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
| | - Xianhui Zhou
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
| | - Yanmei Lu
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- *Correspondence: Baopeng Tang
| | - Baopeng Tang
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
- Yanmei Lu
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Zhang Y, Wu Y, Xu D, Xiao P, Xie B, Huang H, Shang Y, Yuan S, Zhang J. Very-Short-Term Sleep Deprivation Slows Early Recovery of Lymphocytes in Septic Patients. Front Med (Lausanne) 2021; 8:656615. [PMID: 34109195 PMCID: PMC8180857 DOI: 10.3389/fmed.2021.656615] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/12/2021] [Indexed: 12/22/2022] Open
Abstract
Sleep plays an important role in immune function. However, the effects of very-short-term sleep deprivation on the early recovery of immune function after sepsis remain unclear. This study was conducted in the intensive care unit to investigate the effects of 2 consecutive days of sleep deprivation (SD) on lymphocyte recovery over the following few days in septic patients who were recovering from a critical illness. The patients' self-reports of sleep quality was assessed using the Richards–Campbell Sleep Questionnaire at 0 and 24 h after inclusion. The demographic, clinical, laboratory, treatment, and outcome data were collected and compared between the good sleep group and poor sleep group. We found that 2 consecutive days of SD decreased the absolute lymphocyte count (ALC) and ALC recovery at 3 days after SD. Furthermore, post-septic poor sleep decreased the plasma levels of atrial natriuretic peptide (ANP) immediately after 2 consecutive days of SD. The ANP levels at 24 h after inclusion were positively correlated with ALC recovery, the number of CD3+ T cells, or the number of CD3+ CD4+ cells in the peripheral blood on day 5 after inclusion. Our data suggested that very-short-term poor sleep quality could slow down lymphocyte recovery over the following few days in septic patients who were recovering from a critical illness. Our results underscore the significance of very-short-term SD on serious negative effects on the immune function. Therefore, it is suggested that continuous SD or several short-term SD with short intervals should be avoided in septic patients.
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Affiliation(s)
- Yujing Zhang
- Department of Critical Care Medicine, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Tongji Medical College, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Yuming Wu
- Department of Critical Care Medicine, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Tongji Medical College, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Dan Xu
- Department of Critical Care Medicine, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Tongji Medical College, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Ping Xiao
- Department of Critical Care Medicine, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Tongji Medical College, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Bing Xie
- Department of Critical Care Medicine, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Tongji Medical College, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Haiyan Huang
- Department of Critical Care Medicine, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Tongji Medical College, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - You Shang
- Department of Critical Care Medicine, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Tongji Medical College, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Shiying Yuan
- Department of Critical Care Medicine, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Tongji Medical College, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Jiancheng Zhang
- Department of Critical Care Medicine, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Tongji Medical College, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
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De Angelis E, Pecoraro M, Rusciano MR, Ciccarelli M, Popolo A. Cross-Talk between Neurohormonal Pathways and the Immune System in Heart Failure: A Review of the Literature. Int J Mol Sci 2019; 20:ijms20071698. [PMID: 30959745 PMCID: PMC6480265 DOI: 10.3390/ijms20071698] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/01/2019] [Accepted: 04/02/2019] [Indexed: 02/06/2023] Open
Abstract
Heart failure is a complex clinical syndrome involving a multitude of neurohormonal pathways including the renin-angiotensin-aldosterone system, sympathetic nervous system, and natriuretic peptides system. It is now emerging that neurohumoral mechanisms activated during heart failure, with both preserved and reduced ejection fraction, modulate cells of the immune system. Indeed, these cells express angiotensin I receptors, adrenoceptors, and natriuretic peptides receptors. Ang II modulates macrophage polarization, promoting M2 macrophages phenotype, and this stimulation can influence lymphocytes Th1/Th2 balance. β-AR activation in monocytes is responsible for inhibition of free oxygen radicals production, and together with α2-AR can modulate TNF-α receptor expression and TNF-α release. In dendritic cells, activation of β2-AR inhibits IL-12 production, resulting in the inhibition of Th1 and promotion of Th2 differentiation. ANP induces the activation of secretion of superoxide anion in polymorphonucleated cells; reduces TNF-α and nitric oxide secretion in macrophages; and attenuates the exacerbated TH1 responses. BNP in macrophages can stimulate ROS production, up-regulates IL-10, and inhibits IL-12 and TNF-α release by dendritic cells, suggesting an anti-inflammatory cytokines profile induction. Therefore, different neurohormonal-immune cross-talks can determine the phenotype of cardiac remodeling, promoting either favorable or maladaptive responses. This review aims to summarize the available knowledge on neurohormonal modulation of immune responses, providing supportive rational background for further research.
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Affiliation(s)
- Elena De Angelis
- Department of Medicine, Surgery and Odontology, University of Salerno, via S.Allende 1, 84081 Baronissi (SA), Italy.
| | - Michela Pecoraro
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy.
| | - Maria Rosaria Rusciano
- Department of Medicine, Surgery and Odontology, University of Salerno, via S.Allende 1, 84081 Baronissi (SA), Italy.
- Casa di Cura Montevergine, 83013 Mercogliano (AV), Italy.
| | - Michele Ciccarelli
- Department of Medicine, Surgery and Odontology, University of Salerno, via S.Allende 1, 84081 Baronissi (SA), Italy.
| | - Ada Popolo
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy.
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Najenson AC, Courreges AP, Perazzo JC, Rubio MF, Vatta MS, Bianciotti LG. Atrial natriuretic peptide reduces inflammation and enhances apoptosis in rat acute pancreatitis. Acta Physiol (Oxf) 2018; 222. [PMID: 29117461 DOI: 10.1111/apha.12992] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 10/20/2017] [Accepted: 10/30/2017] [Indexed: 12/18/2022]
Abstract
AIM We previously reported that atrial natriuretic peptide (ANP) reduces serum amylase and intrapancreatic trypsinogen activation in the onset of acute pancreatitis whereas secretin increases them. In the present work, we sought to establish the effect of ANP and secretin on the inflammatory response and cell death in experimental acute pancreatitis. METHODS The expression and activity of key inflammatory mediators and apoptosis were evaluated in the presence or absence of the atrial peptide, secretin or both in cerulein-induced acute pancreatitis in rats. Also, ultrastructural changes in pancreatic acinar cells were assessed by transmission electron microscopy. RESULTS ANP significantly reduced NF-κB activation and TNF-α intrapancreatic levels. Furthermore, it decreased inducible nitric oxide synthase and cyclooxygenase 2 expression and activity while it diminished myeloperoxidase activity. ANP also stimulated apoptosis as shown by caspase-3 expression and activation as well as TUNEL assay. These findings correlated well with the ultrastructural changes observed in the exocrine pancreas. Although secretin reduced various inflammatory markers, it also diminished caspase-3 activation and the overall response was the aggravation of the disease as reflected by the ultrastructural alterations of pancreatic acinar cells. In the presence of ANP, various effects evoked by secretin were antagonized. CONCLUSION Present findings show that ANP significantly attenuated the severity of acute pancreatitis in the rat by inducing apoptosis and reducing the inflammatory response and further suggest that ANP may have eventual therapeutic implications in the disease and/or in medical interventions at risk of its developing like endoscopic retrograde cholangiopancreatography.
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Affiliation(s)
- A. C. Najenson
- Instituto de Inmunología; Genética y Metabolismo (INIGEM-CONICET-UBA); Facultad de Farmacia y Bioquímica; Universidad de Buenos Aires; Buenos Aires Argentina
| | - A. P. Courreges
- Instituto de Inmunología; Genética y Metabolismo (INIGEM-CONICET-UBA); Facultad de Farmacia y Bioquímica; Universidad de Buenos Aires; Buenos Aires Argentina
| | - J. C. Perazzo
- Instituto de Patología; Facultad de Medicina; Universidad de Buenos Aires; Buenos Aires Argentina
| | - M. F. Rubio
- Instituto de Investigaciones Médicas (IDIM-CONICET-UBA); Facultad de Medicina; Universidad de Buenos Aires; Buenos Aires Argentina
| | - M. S. Vatta
- Cátedra de Fisiología-Instituto de Química y Metabolismo del Fármaco (IQUIMEFA-CONICET-UBA); Facultad de Farmacia y Bioquímica; Universidad de Buenos Aires; Buenos Aires Argentina
| | - L. G. Bianciotti
- Instituto de Inmunología; Genética y Metabolismo (INIGEM-CONICET-UBA); Facultad de Farmacia y Bioquímica; Universidad de Buenos Aires; Buenos Aires Argentina
- Departamento de Ciencias Biológicas; Cátedra de Fisiopatología; Facultad de Farmacia y Bioquímica; Universidad de Buenos Aires; Buenos Aires Argentina
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New mechanism underlying IL-31-induced atopic dermatitis. J Allergy Clin Immunol 2018; 141:1677-1689.e8. [PMID: 29427643 DOI: 10.1016/j.jaci.2017.12.1002] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 11/18/2017] [Accepted: 12/21/2017] [Indexed: 01/10/2023]
Abstract
BACKGROUND TH2 cell-released IL-31 is a critical mediator in patients with atopic dermatitis (AD), a prevalent and debilitating chronic skin disorder. Brain-derived natriuretic peptide (BNP) has been described as a central itch mediator. The importance of BNP in peripheral (skin-derived) itch and its functional link to IL-31 within the neuroimmune axis of the skin is unknown. OBJECTIVE We sought to investigate the function of BNP in the peripheral sensory system and skin in IL-31-induced itch and neuroepidermal communication in patients with AD. METHODS Ca2+ imaging, immunohistochemistry, quantitative real-time PCR, RNA sequencing, knockdown, cytokine/phosphokinase arrays, enzyme immune assay, and pharmacologic inhibition were performed to examine the cellular basis of the IL-31-stimulated, BNP-related itch signaling in dorsal root ganglionic neurons (DRGs) and skin cells, transgenic AD-like mouse models, and human skin of patients with AD and healthy subjects. RESULTS In human DRGs we confirmed expression and co-occurrence of oncostatin M receptor β subunit and IL-31 receptor A in a small subset of the neuronal population. Furthermore, IL-31 activated approximately 50% of endothelin-1-responsive neurons, and half of the latter also responded to histamine. In murine DRGs IL-31 upregulated Nppb and induced soluble N-ethylmaleimide-sensitive factor activating protein receptor-dependent BNP release. In Grhl3PAR2/+ mice house dust mite-induced severe AD-like dermatitis was associated with Nppb upregulation. Lesional IL-31 transgenic mice also exhibited increased Nppb transcripts in DRGs and the skin; accordingly, skin BNP receptor levels were increased. Importantly, expression of BNP and its receptor were increased in the skin of patients with AD. In human skin cells BNP stimulated a proinflammatory and itch-promoting phenotype. CONCLUSION For the first time, our findings show that BNP is implicated in AD and that IL-31 regulates BNP in both DRGs and the skin. IL-31 enhances BNP release and synthesis and orchestrates cytokine and chemokine release from skin cells, thereby coordinating the signaling pathways involved in itch. Inhibiting peripheral BNP function might be a novel therapeutic strategy for AD and pruritic conditions.
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A Novel Role for Brain Natriuretic Peptide: Inhibition of IL-1β Secretion via Downregulation of NF-kB/Erk 1/2 and NALP3/ASC/Caspase-1 Activation in Human THP-1 Monocyte. Mediators Inflamm 2017; 2017:5858315. [PMID: 28331244 PMCID: PMC5346358 DOI: 10.1155/2017/5858315] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 12/15/2016] [Accepted: 01/18/2017] [Indexed: 12/15/2022] Open
Abstract
Interleukin-1β (IL-1β) is a pleiotropic cytokine and a crucial mediator of inflammatory and immune responses. IL-1β processing and release are tightly controlled by complex pathways such as NF-kB/ERK1/2, to produce pro-IL-1β, and NALP3/ASC/Caspase-1 inflammasome, to produce the active secreted protein. Dysregulation of both IL-1β and its related pathways is involved in inflammatory/autoimmune disorders and in a wide range of other diseases. Identifying molecules modulating their expression is a crucial need to develop new therapeutic agents. IL-1β is a strong regulator of Brain Natriuretic Peptide (BNP), a hormone involved in cardiovascular homeostasis by guanylyl cyclase Natriuretic Peptide Receptor (NPR-1). An emerging role of BNP in inflammation and immunity, although proposed, remains largely unexplored. Here, we newly demonstrated that, in human THP-1 monocytes, LPS/ATP-induced IL-1β secretion is strongly inhibited by BNP/NPR-1/cGMP axis at all the molecular mechanisms that tightly control its production and release, NF-kB, ERK 1/2, and all the elements of NALP3/ASC/Caspase-1 inflammasome cascade, and that NALP3 inflammasome inhibition is directly related to BNP deregulatory effect on NF-kB/ERK 1/2 activation. Our findings reveal a novel potent anti-inflammatory and immunomodulatory role for BNP and open new alleys of investigation for a possible employment of this endogenous agent in the treatment of inflammatory/immune-related and IL-1β/NF-kB/ERK1/2/NALP3/ASC/Caspase-1-associated diseases.
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Atrial natriuretic peptide down-regulates LPS/ATP-mediated IL-1β release by inhibiting NF-kB, NLRP3 inflammasome and caspase-1 activation in THP-1 cells. Immunol Res 2016; 64:303-12. [PMID: 26616294 DOI: 10.1007/s12026-015-8751-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Atrial natriuretic peptide (ANP) is an hormone/paracrine/autocrine factor regulating cardiovascular homeostasis by guanylyl cyclase natriuretic peptide receptor (NPR-1). ANP plays an important role also in regulating inflammatory and immune systems by altering macrophages functions and cytokines secretion. Interleukin-1β (IL-1β) is a potent pro-inflammatory cytokine involved in a wide range of biological responses, including the immunological one. Unlike other cytokines, IL-1β production is rigorously controlled. Primarily, NF-kB activation is required to produce pro-IL-1β; subsequently, NALP3 inflammasome/caspase-1 activation is required to cleave pro-IL-1β into the active secreted protein. NALP3 is a molecular platform capable of sensing a large variety of signals and a major player in innate immune defense. Due to their pleiotropism, IL-1β and NALP3 dysregulation is a common feature of a wide range of diseases. Therefore, identifying molecules regulating IL-1β/NALP3/caspase-1 expression is an important step in the development of new potential therapeutic agents. The aim of our study was to evaluate the effect of ANP on IL-1β/NALP3/caspase-1 expression in LPS/ATP-stimulated human THP1 monocytes. We provided new evidence of the direct involvement of ANP/NPR-1/cGMP axis on NF-kB/NALP3/caspase-1-mediated IL-1β release and NF-kB-mediated pro-IL-1β production. In particular, ANP inhibited both NF-kB and NALP3/caspase-1 activation leading to pro- and mature IL-1β down-regulation. Our data, pointing out a modulatory role of this endogenous peptide on IL-1β release and on NF-kB/NALP3/caspase-1 activation, indicate an important anti-inflammatory and immunomodulatory effect of ANP via these mechanisms. We suggest a possible employment of ANP for the treatment of inflammatory/immune-related diseases and IL-1β/NALP3-associated disorders, affecting millions of people worldwide.
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Thorburn AN, McKenzie CI, Shen S, Stanley D, Macia L, Mason LJ, Roberts LK, Wong CHY, Shim R, Robert R, Chevalier N, Tan JK, Mariño E, Moore RJ, Wong L, McConville MJ, Tull DL, Wood LG, Murphy VE, Mattes J, Gibson PG, Mackay CR. Evidence that asthma is a developmental origin disease influenced by maternal diet and bacterial metabolites. Nat Commun 2015; 6:7320. [PMID: 26102221 DOI: 10.1038/ncomms8320] [Citation(s) in RCA: 607] [Impact Index Per Article: 67.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 04/27/2015] [Indexed: 12/27/2022] Open
Abstract
Asthma is prevalent in Western countries, and recent explanations have evoked the actions of the gut microbiota. Here we show that feeding mice a high-fibre diet yields a distinctive gut microbiota, which increases the levels of the short-chain fatty acid, acetate. High-fibre or acetate-feeding led to marked suppression of allergic airways disease (AAD, a model for human asthma), by enhancing T-regulatory cell numbers and function. Acetate increases acetylation at the Foxp3 promoter, likely through HDAC9 inhibition. Epigenetic effects of fibre/acetate in adult mice led us to examine the influence of maternal intake of fibre/acetate. High-fibre/acetate feeding of pregnant mice imparts on their adult offspring an inability to develop robust AAD. High fibre/acetate suppresses expression of certain genes in the mouse fetal lung linked to both human asthma and mouse AAD. Thus, diet acting on the gut microbiota profoundly influences airway responses, and may represent an approach to prevent asthma, including during pregnancy.
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Affiliation(s)
- Alison N Thorburn
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Craig I McKenzie
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Sj Shen
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Dragana Stanley
- School of Medical and Applied Sciences, Central Queensland University, Rockhampton, Queensland 4702, Australia
| | - Laurence Macia
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Linda J Mason
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Laura K Roberts
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Connie H Y Wong
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Raymond Shim
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Remy Robert
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Nina Chevalier
- 1] Department of Immunology, Monash University, Clayton, Victoria 3800, Australia [2] Department of Rheumatology and Clinical Immunology, University Medical Center, 79106 Freiburg, Germany
| | - Jian K Tan
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Eliana Mariño
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Rob J Moore
- 1] CSIRO Animal, Food, and Health Sciences, Geelong, Victoria 3220, Australia [2] Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
| | - Lee Wong
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Malcolm J McConville
- 1] Department of Biochemistry and Molecular Biology, Bio21 Institute of Molecular Science and Biotechnology, University of Melbourne, Melbourne, Victoria 3010, Australia [2] Metabolomics Australia, Bio21 Institute of Molecular Sciences and Biotechnology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Dedreia L Tull
- Metabolomics Australia, Bio21 Institute of Molecular Sciences and Biotechnology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Lisa G Wood
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Vanessa E Murphy
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Joerg Mattes
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Peter G Gibson
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Charles R Mackay
- 1] Department of Immunology, Monash University, Clayton, Victoria 3800, Australia [2] Charles Perkins Centre, Sydney University Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
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Hodes A, Lichtstein D. Natriuretic hormones in brain function. Front Endocrinol (Lausanne) 2014; 5:201. [PMID: 25506340 PMCID: PMC4246887 DOI: 10.3389/fendo.2014.00201] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 11/12/2014] [Indexed: 01/11/2023] Open
Abstract
Natriuretic hormones (NH) include three groups of compounds: the natriuretic peptides (ANP, BNP and CNP), the gastrointestinal peptides (guanylin and uroguanylin), and endogenous cardiac steroids. These substances induce the kidney to excrete sodium and therefore participate in the regulation of sodium and water homeostasis, blood volume, and blood pressure (BP). In addition to their peripheral functions, these hormones act as neurotransmitters or neuromodulators in the brain. In this review, the established information on the biosynthesis, release and function of NH is discussed, with particular focus on their role in brain function. The available literature on the expression patterns of each of the NH and their receptors in the brain is summarized, followed by the evidence for their roles in modulating brain function. Although numerous open questions exist regarding this issue, the available data support the notion that NH participate in the central regulation of BP, neuroprotection, satiety, and various psychiatric conditions, including anxiety, addiction, and depressive disorders. In addition, the interactions between the different NH in the periphery and the brain are discussed.
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Affiliation(s)
- Anastasia Hodes
- Faculty of Medicine, Department of Medical Neurobiology, Institute for Medical Research Israel-Canada, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - David Lichtstein
- Faculty of Medicine, Department of Medical Neurobiology, Institute for Medical Research Israel-Canada, The Hebrew University of Jerusalem, Jerusalem, Israel
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De Vito P. Atrial natriuretic peptide: an old hormone or a new cytokine? Peptides 2014; 58:108-16. [PMID: 24973596 DOI: 10.1016/j.peptides.2014.06.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 06/19/2014] [Accepted: 06/19/2014] [Indexed: 02/07/2023]
Abstract
Atrial natriuretic peptide (ANP) a cardiovascular hormone mainly secreted by heart atria in response to stretching forces induces potent diuretic, natriuretic and vasorelaxant effects and plays a major role in the homeostasis of blood pressure as well as of water and salt balance. The hormone can also act as autocrine/paracrine factor and modulate several immune functions as well as cytoprotective effects. ANP contributes to innate immunity being able to: (i) stimulate the host defense against extracellular microbes by phagocytosis and Reactive Oxygen Species (ROS) release; (ii) inhibit the synthesis and release of proinflammatory markers such as TNF-α, IL-1, MCP-1, nitric oxide (NO), cyclooxygenase-2 (COX-2); (iii) inhibit the expression of adhesion molecules such as ICAM-1 and E-selectin. ANP can also affect the adaptive immunity being able to: (i) reduce the number of CD4(+) CD8(+) lymphocytes as well as to increase the CD4(-) CD8(-) cells; (ii) stimulate the differentiation of naïve CD4(+) cells toward the Th2 and/or Th17 phenotype. The hormone shows protective effects during: (i) ventricular hypertrophy and myocardial injury; (ii) atherosclerosis and hypertension by the induction of antiproliferative effects; (iii) oxidative stress counteracting the dangerous effects of ROS; (iv) growth of tumors cells by the induction of apoptosis or necrosis. Since not much is known about of the role of ANP locally produced and released by non-cardiac cells, this review outlines the contribution of ANP in different aspect of innate as well as adaptive immunity also with respect to the excessive cell growth in physiological and/or pathological conditions.
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Affiliation(s)
- Paolo De Vito
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy.
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Gambaryan S, Subramanian H, Rukoyatkina N, Herterich S, Walter U. Soluble guanylyl cyclase is the only enzyme responsible for cyclic guanosine monophosphate synthesis in human platelets. Thromb Haemost 2013; 109:973-5. [PMID: 23467662 DOI: 10.1160/th12-12-0916] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 02/17/2013] [Indexed: 12/17/2022]
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Li CY, Suen JL, Chiang BL, Lee Chao PD, Fang SH. Morin Promotes the Production of Th2 Cytokine by Modulating Bone Marrow-Derived Dendritic Cells. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 34:667-84. [PMID: 16883637 DOI: 10.1142/s0192415x06004193] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Our previous studies had reported that morin decreased the interleukin-12 (IL-12) and tumor necrosis factor-alpha (TNF-α) production in lipopolysaccharide (LPS)-activated macrophages, suggesting that morin may promote helper T type 2 (Th2) response in vivo. Dendritic cells (DCs) are the most potent antigen presenting cells and known to play a major role in the differentiation of helper T type 1 (Th1) and Th2 responses. This study aimed to reveal whether morin is able to control the Th differentiation through modulating the maturation and functions of DCs. Bone marrow-derived dendritic cells (BM-DCs) were incubated with various concentrations of morin and their characteristics were studied. The results indicated that morin significantly affects the phenotype and cytokine expression of BM-DCs. Morin reduced the production of IL-12 and TNF-α in BM-DCs, in response to LPS stimulation. In addition, the proliferative response of stimulated alloreactive T cells was significantly decreased by morin in BM-DCs. Furthermore, allogeneic T cells secreted higher IL-4 and lower IFN-γ in response to morin in BM-DCs. In conclusion, these results suggested that morin favors Th2 cell differentiation through modulating the maturation and function of BM-DCs.
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Affiliation(s)
- Chia-Yang Li
- Institute of Medicine, School of Medicine, China Medical University, Taichung 404, Taiwan, ROC
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Ma L, Xiang X. Atrial natriuretic peptide/natriuretic peptide receptor A (ANP/NPRA) signaling pathway: a potential therapeutic target for allergic asthma. Med Hypotheses 2012; 77:832-3. [PMID: 21856086 DOI: 10.1016/j.mehy.2011.07.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2011] [Revised: 07/12/2011] [Accepted: 07/19/2011] [Indexed: 10/17/2022]
Abstract
Allergic asthma is a chronic inflammatory disease of airway and immune disorder is an acknowledged mechanism. Numerous data demonstrate Th1/Th2 cells play an important role in the development of allergic asthma. Atrial natriuretic peptide (ANP) is a multifunctional hormone secreted by cardiac atria, lung, and so forth, which has been recognized for several decades due to its general effects on cardiovascular system, and natriuretic peptide receptor A (NPRA) is the major effecting receptor for ANP. In recent years, more and more studies suggest that ANP/NPRA signaling pathway is implicated in modulation of immnue and inflammatory reaction. Moreover, there are some reports about significant changes of ANP production in peripheral blood from asthmatics in acute exacerbation compared with patients during the remission and the healthy. Nevertheless, it is unknown that why ANP shows an observable change and what role ANP plays in asthma until now. We propose that ANP/NPRA signaling pathway is involved in immune dysfunction and airway inflammation of allergic asthma based on our experimental results, which suggests ANP/NPRA signaling pathway may be a potential therapeutic target for allergic asthma.
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Affiliation(s)
- Libing Ma
- Department of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Middle Renmin Road, No. 139, Changsha, Hunan 410011, China
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Shaw SM, Critchley WR, Puchalka CM, Williams SG, Yonan N, Fildes JE. Brain natriuretic peptide induces CD8+ T cell death via a caspase 3 associated pathway--implications following heart transplantation. Transpl Immunol 2011; 26:119-22. [PMID: 22138041 DOI: 10.1016/j.trim.2011.11.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Revised: 11/15/2011] [Accepted: 11/18/2011] [Indexed: 10/14/2022]
Abstract
BACKGROUND Brain natriuretic peptide (BNP) remains elevated after cardiac transplantation despite replacement of the failing ventricle. Serum peaks are also seen during acute rejection episodes independent of intracardiac hemodynamic disturbance. High BNP levels are also reported during bacterial sepsis, burns, stroke and myocardial infarction. Given all of these conditions are linked by immune activation processes, we hypothesised that BNP is an immunoactive agent. METHODS Peripheral blood mononuclear cells (PBMCs) were isolated from whole blood of 40 cardiac transplant recipients. Cells were co-cultured for 72h in the presence or absence of BNP. Cells were then immunophenotyped using flow cytometry. Cell death pathways were determined using caspase 3 quantification and mitochondrial membrane assessment. Supernatants were analysed for cytokine, chemokine and growth factor production using luminex. RESULTS Co-culture of CD8+ T cells with BNP reduced cell number, and increased intracellular caspase 3. Supernatant analysis revealed that BNP reduced the expression of inflammatory cytokines including TNF-α, IL-1α and IL-6. However it preserved the production of anti-inflammatory and regulatory cytokines such as IL-4, 5 and 13. CONCLUSION Our findings provide evidence that BNP directly induces CD8+ T cell apoptosis via a caspase 3 associated mechanism from cardiac transplant patients. This may impart significant consequences on immune mediated disease processes, such as allograft rejection.
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Affiliation(s)
- Steven M Shaw
- The Transplant Centre, University Hospital of South Manchester NHS Foundation Trust, Wythenshawe Hospital, Manchester, M23 9LT, UK.
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Hertz AL, Beavo JA. Cyclic nucleotides and phosphodiesterases in monocytic differentiation. Handb Exp Pharmacol 2011:365-90. [PMID: 21695649 DOI: 10.1007/978-3-642-17969-3_16] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Monocytes are immune cells that can differentiate into a number of cell types including macrophages, dendritic cells, and osteoclasts upon exposure to various cytokines. The phenotypes of these differentiated cells are highly heterogeneous and their differentiation can be affected by the cyclic nucleotides, 3'-5'-cyclic adenosine monophosphate (cAMP) and 3'-5'-cyclic guanosine monophosphate (cGMP). The intracellular levels of cAMP and cGMP are controlled through regulation of production by adenylyl and guanylyl cyclases and through degradation by cyclic nucleotide phosphodiesterases (PDEs). PDE inhibition and subsequent changes in cyclic nucleotide levels can alter the final phenotype of a differentiating monocyte with regards to surface marker expression, gene expression, or changes in secreted chemokine and cytokine levels. The differentiation process itself can also be either inhibited or augmented by changes in cyclic nucleotide levels, depending on the system being studied and the timing of cyclic nucleotide elevation. This chapter explores the effects of PDE inhibition and increases in cGMP and cAMP on monocytic differentiation into osteoclasts, dendritic cells, and macrophages.
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Affiliation(s)
- Angie L Hertz
- Department of Pharmacology, School of Medicine, University of Washington, 357280, Seattle, WA 98125, USA.
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Zhang W, Cao X, Chen D, Wang JW, Yang H, Wang W, Mohapatra S, Hellermann G, Kong X, Lockey RF, Mohapatra SS. Plasmid-encoded NP73-102 modulates atrial natriuretic peptide receptor signaling and plays a critical role in inducing tolerogenic dendritic cells. GENETIC VACCINES AND THERAPY 2011; 9:3. [PMID: 21219617 PMCID: PMC3025824 DOI: 10.1186/1479-0556-9-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2010] [Accepted: 01/10/2011] [Indexed: 11/10/2022]
Abstract
Background Atrial natriuretic peptide (ANP) is an important endogenous hormone that controls inflammation and immunity by acting on dendritic cells (DCs); however, the mechanism remains unclear. Objective We analyzed the downstream signaling events resulting from the binding of ANP to its receptor, NPRA, and sought to determine what aspects of this signaling modulate DC function. Methods We utilized the inhibitory peptide, NP73-102, to block NPRA signaling in human monocyte-derived DCs (hmDCs) and examined the effect on DC maturation and induced immune responses. The potential downstream molecules and interactions among these molecules involved in NPRA signaling were identified by immunoprecipitation and immunoblotting. Changes in T cell phenotype and function were determined by flow cytometry and BrdU proliferation ELISA. To determine if adoptively transferred DCs could alter the in vivo immune response, bone marrow-derived DCs from wild-type C57BL/6 mice were incubated with ovalbumin (OVA) and injected i.v. into C57BL/6 NPRA-/- knockout mice sensitized and challenged with OVA. Lung sections were stained and examined for inflammation and cytokines were measured in bronchoalveolar lavage fluid collected from parallel groups of mice. Results Inhibition of NPRA signaling in DCs primes them to induce regulatory T cells. Adoptive transfer of wild type DCs into NPRA-/- mice reverses the attenuation of lung inflammation seen in the NPRA-knockout model. NPRA is associated with TLR-2, SOCS3 and STAT3, and inhibiting NPRA alters expression of IL-6, IL-10 and TGF-β, but not IL-12. Conclusions Modulation of NPRA signaling in DCs leads to immune tolerance and TLR2 and SOCS3 are involved in this induction.
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Affiliation(s)
- Weidong Zhang
- Department of Internal Medicine, Division of Allergy and Immunology, University of South Florida College of Medicine, Tampa, FL 33612, USA
| | - Xueqin Cao
- Department of Molecular Medicine, University of South Florida College of Medicine, Tampa, FL 33612, USA
| | - Dongqing Chen
- Department of Internal Medicine, Division of Allergy and Immunology, University of South Florida College of Medicine, Tampa, FL 33612, USA
| | - Jia-Wang Wang
- James A. Haley Veterans Hospital Medical Center, Tampa, FL 33612, USA
| | - Hong Yang
- Department of Internal Medicine, Division of Endocrinology, University of South Florida College of Medicine, Tampa, FL 33612, USA
| | - Wenshi Wang
- Donald A. Adam Comprehensive Melanoma Research Center, Moffitt Cancer Center, 12902 Magnolia Drive, SRB-24324, Tampa, FL 33612, USA
| | - Subhra Mohapatra
- Department of Molecular Medicine, University of South Florida College of Medicine, Tampa, FL 33612, USA.,Department of Internal Medicine, Division of Translational Medicine, University of South Florida College of Medicine, Tampa, FL 33612, USA
| | - Gary Hellermann
- Department of Internal Medicine, Division of Allergy and Immunology, University of South Florida College of Medicine, Tampa, FL 33612, USA
| | - Xiaoyuan Kong
- Department of Internal Medicine, Division of Allergy and Immunology, University of South Florida College of Medicine, Tampa, FL 33612, USA
| | - Richard F Lockey
- Department of Internal Medicine, Division of Allergy and Immunology, University of South Florida College of Medicine, Tampa, FL 33612, USA.,James A. Haley Veterans Hospital Medical Center, Tampa, FL 33612, USA
| | - Shyam S Mohapatra
- Department of Internal Medicine, Division of Allergy and Immunology, University of South Florida College of Medicine, Tampa, FL 33612, USA.,James A. Haley Veterans Hospital Medical Center, Tampa, FL 33612, USA.,Department of Internal Medicine, Division of Translational Medicine, University of South Florida College of Medicine, Tampa, FL 33612, USA
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Kandasamy R, Park SJ, Boyapalle S, Mohapatra S, Hellermann GR, Lockey RF, Mohapatra SS. Isatin down-regulates expression of atrial natriuretic peptide receptor A and inhibits airway inflammation in a mouse model of allergic asthma. Int Immunopharmacol 2009; 10:218-25. [PMID: 19900583 DOI: 10.1016/j.intimp.2009.11.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2009] [Revised: 10/08/2009] [Accepted: 11/02/2009] [Indexed: 11/16/2022]
Abstract
Isatin, an endogenous indole compound, prevents atrial natriuretic peptide (ANP) from signaling through its cell-surface receptor, NPRA. Allergic airway inflammation has been linked to natriuretic peptide signaling and blocking this signaling axis in the lung prevents allergen-induced pathology. In this study we encapsulated isatin in chitosan nanoparticles and tested them in a mouse model of allergic asthma by intranasal delivery to the lung. Isatin nanocapsules reduced lung pathology by blocking ANP signaling, but surprisingly also by reducing the expression of NPRA. Ovalbumin-allergic mice were treated intranasally with isatin-containing chitosan nanocapsules either before or after allergen challenge, and lung function, cytokine levels, histopathology and cellular infiltration were determined. ANP activity was quantitated by measuring changes in intracellular cyclic GMP and changes in NPRA levels were determined. For comparison with isatin's effects, the expression of the receptor was inhibited with small interfering RNA against NPRA mRNA. Isatin nanocapsules administered locally to the lung reduced cGMP production and NPRA expression and protected allergic mice from airway hyperreactivity and lung inflammation when given either before or after allergen challenge. Leukocyte infiltration was reduced and lung cytokine profiles showed a repolarization from a Th2-like to a Th1-like phenotype. Isatin nanocapsules administered locally to the lung inhibit NPRA signaling but also are capable of lowering the expression of NPRA, thus effectively reducing inflammation in a mouse model of allergic asthma. Pharmacological intervention to reduce NPRA activity through the inflammatory natriuretic peptide axis in the lung may be a useful adjunct therapy for treating lung disease.
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Affiliation(s)
- R Kandasamy
- Division of Allergy and Immunology-Joy McCann Culverhouse Airway Disease Center, Dept. of Internal Medicine and Nanomedicine Research Center, College of Medicine, Tampa, FL, USA
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Morita R, Fujita T, Uchiyama T, Hori T. Human plasmacytoid dendritic cells express an atrial natriuretic peptide receptor, guanylyl cyclase-A. Microbiol Immunol 2009; 53:403-11. [PMID: 19563399 DOI: 10.1111/j.1348-0421.2009.00149.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Atrial natriuretic peptide is a cardiovascular hormone secreted mainly by the cardiac atria and regulates the volume-pressure homeostasis. The action of ANP is mediated by GC-A. We previously reported that human monocyte-derived dendritic cells express GC-A and respond to ANP with polarization toward a Th2-inducing phenotype. In the present study, we explored the possibility that pDC are subjected to immunoregulation via the ANP/GC-A system. We examined GC-A expression on blood pDC and found that GC-A was not expressed on fresh pDC but was induced after stimulation with CpG-oligodeoxynucleotide AAC-30, IL-3, or interleukin-3 plus CD40 ligand. Activated pDC responded to ANP with an increase in cGMP production, indicating that GC-A expressed on pDC was functional. We investigated whether tonsillar pDC express GC-A by immunohistochemistry and immunofluorescence staining. We found that GC-A(+) HLA-DR(+) cells were present in the T-cell areas and the perivascular areas. Flow cytometric analysis with tonsillar cells confirmed that lineage(-) CD123(high) pDC express GC-A. These results indicate that the ANP/GC-A system is involved in immune regulation through pDC in secondary lymphoid organs.
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Affiliation(s)
- Rimpei Morita
- Department of Hematology and Oncology, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
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Wang X, Xu W, Kong X, Chen D, Hellermann G, Ahlert TA, Giaimo JD, Cormier SA, Li X, Lockey RF, Mohapatra S, Mohapatra SS. Modulation of lung inflammation by vessel dilator in a mouse model of allergic asthma. Respir Res 2009; 10:66. [PMID: 19615076 PMCID: PMC2716304 DOI: 10.1186/1465-9921-10-66] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Accepted: 07/17/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Atrial natriuretic peptide (ANP) and its receptor, NPRA, have been extensively studied in terms of cardiovascular effects. We have found that the ANP-NPRA signaling pathway is also involved in airway allergic inflammation and asthma. ANP, a C-terminal peptide (amino acid 99-126) of pro-atrial natriuretic factor (proANF) and a recombinant peptide, NP73-102 (amino acid 73-102 of proANF) have been reported to induce bronchoprotective effects in a mouse model of allergic asthma. In this report, we evaluated the effects of vessel dilator (VD), another N-terminal natriuretic peptide covering amino acids 31-67 of proANF, on acute lung inflammation in a mouse model of allergic asthma. METHODS A549 cells were transfected with pVD or the pVAX1 control plasmid and cells were collected 24 hrs after transfection to analyze the effect of VD on inactivation of the extracellular-signal regulated receptor kinase (ERK1/2) through western blot. Luciferase assay, western blot and RT-PCR were also performed to analyze the effect of VD on NPRA expression. For determination of VD's attenuation of lung inflammation, BALB/c mice were sensitized and challenged with ovalbumin and then treated intranasally with chitosan nanoparticles containing pVD. Parameters of airway inflammation, such as airway hyperreactivity, proinflammatory cytokine levels, eosinophil recruitment and lung histopathology were compared with control mice receiving nanoparticles containing pVAX1 control plasmid. RESULTS pVD nanoparticles inactivated ERK1/2 and downregulated NPRA expression in vitro, and intranasal treatment with pVD nanoparticles protected mice from airway inflammation. CONCLUSION VD's modulation of airway inflammation may result from its inactivation of ERK1/2 and downregulation of NPRA expression. Chitosan nanoparticles containing pVD may be therapeutically effective in preventing allergic airway inflammation.
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Affiliation(s)
- Xiaoqin Wang
- Division of Allergy and Immunology, University of South Florida, Tampa, FL 33612, USA.
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Walter U, Gambaryan S. cGMP and cGMP-dependent protein kinase in platelets and blood cells. Handb Exp Pharmacol 2009:533-48. [PMID: 19089344 DOI: 10.1007/978-3-540-68964-5_23] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Platelets are specialized adhesive cells that play a key role in normal and pathological hemostasis through their ability to rapidly adhere to subendothelial matrix proteins (platelet adhesion) and to other activated platelets (platelet aggregation). NO plays a crucial role in preventing platelet adhesion and aggregation. In platelets, cGMP synthesis is catalyzed by sGC, whereas PDE2, PDE3 and PDE5 are responsible for cGMP degradation. Stimulation of cGK by cGMP leads to phosphorylation of multiple target substrates. These substrates inhibit elevation of intracellular calcium, integrin activation, cytoskeletal reorganization, and platelet granule secretion, events normally associated with platelet activation. The NO/cGMP pathway also plays a significant role in many other blood cell types in addition to platelets. In leukocytes, depending on the specific cell type, cGMP signaling regulates gene expression, differentiation, migration, cytokine production, and apoptosis.
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Affiliation(s)
- Ulrich Walter
- Institute of Clinical Biochemistry and Pathobiochemistry, University of Wuerzburg, Josef-Schneider-Str. 2, Wuerzburg, 97080, Germany.
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25
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Mohapatra SS. Role of natriuretic peptide signaling in modulating asthma and inflammation. Can J Physiol Pharmacol 2007; 85:754-9. [PMID: 17823639 DOI: 10.1139/y07-066] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Atrial natriuretic peptide (ANP), the C-terminal peptide comprising residues 99-126 of the pro-ANP hormone, has been studied for 3 decades for its cardiovascular effects. Recent reports suggest that it plays a significant role in modulation of the immune system. Immune cells, including macrophages, dendritic cells, and T lymphocytes, express receptors for ANP. ANP plays a significant role in shaping the early immune response to environmental antigens and may play a critical role in the interaction between cells of the innate and adaptive immune systems; it also appears to be involved in polarizing the immune response to allergens. Thus, ability to alter the magnitude of natriuretic peptide receptor A (NPRA) signaling could be exploited to develop therapeutics for several allergic diseases, including asthma. This report will review and critically evaluate the role of the ANP pathway in asthma and inflammation.
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Affiliation(s)
- Shyam S Mohapatra
- Division of Allergy and Immunology-JMC Airway Disease Research Center, Department of Internal Medicine, University of South Florida and VA Hospital, Tampa, FL 33612, USA.
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26
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Kawahara M, Hori T, Matsubara Y, Okawa K, Uchiyama T. Identification of HLA class I-restricted tumor-associated antigens in adult T cell leukemia cells by mass spectrometric analysis. Exp Hematol 2007; 34:1496-504. [PMID: 17046569 DOI: 10.1016/j.exphem.2006.06.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2006] [Revised: 06/13/2006] [Accepted: 06/14/2006] [Indexed: 10/24/2022]
Abstract
OBJECTIVE In this study, we attempted a comprehensive analysis of MHC class I-bound peptides in adult T cell leukemia (ATL) cells in order to identify as many tumor-associated antigens (TAAs) as possible that could be used for CTL-based immunotherapy. METHODS AND RESULTS Using mass spectrometry combined with reversed-phase liquid chromatography, we could sequence 188 HLA class I-restricted candidate peptides from three ATL-derived cell lines. In accordance with the restrained expression of HTLV-I viral RNA in these cell lines, there were no HTLV-I-encoded peptides among these candidates. Based on the differential expression between ATL cells and normal CD4+ T cells, we selected 10 novel peptides as T cell epitopes of overexpressed source proteins. RT-PCR analysis revealed that 5 source proteins including PRAME, a known tumor-testis antigen, were highly expressed in the majority of 16 ATL cases. Furthermore we could induce PRAME-specific CTLs in vitro from an HLA-B62+ healthy donor that showed specific cytotoxicity against HLA-B62+ PRAME+ ATL cells. CONCLUSION These results demonstrate that comprehensive analysis of HLA class I-bound peptides by mass spectrometry is useful for identification of TAA-derived peptides in ATL. Considering that expression patterns of leukemia/lymphoma-associated antigens vary from case to case, this approach appears to be suitable for the tailor-made immunotherapy of hematological malignancies.
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MESH Headings
- Antigens, Neoplasm/biosynthesis
- Antigens, Neoplasm/chemistry
- Antigens, Neoplasm/genetics
- Cell Line, Tumor
- Chromatography, High Pressure Liquid/methods
- Chromatography, Liquid/methods
- Cytotoxicity Tests, Immunologic
- Histocompatibility Antigens Class I/biosynthesis
- Histocompatibility Antigens Class I/chemistry
- Human T-lymphotropic virus 1/genetics
- Humans
- Immunophenotyping
- Leukemia-Lymphoma, Adult T-Cell/genetics
- Leukemia-Lymphoma, Adult T-Cell/immunology
- Leukemia-Lymphoma, Adult T-Cell/virology
- Mass Spectrometry/methods
- Microtubule-Associated Proteins/biosynthesis
- Microtubule-Associated Proteins/genetics
- Peptide Fragments/analysis
- Protein Serine-Threonine Kinases/biosynthesis
- Protein Serine-Threonine Kinases/genetics
- Proteins/genetics
- Proteins/metabolism
- RNA, Viral/biosynthesis
- Reverse Transcriptase Polymerase Chain Reaction/methods
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Affiliation(s)
- Masahiro Kawahara
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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27
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Kawahara M, Hori T, Matsubara Y, Okawa K, Uchiyama T. Cyclin-dependent Kinaselike 5 is a Novel Target of Immunotherapy in Adult T-cell Leukemia. J Immunother 2007; 30:499-505. [PMID: 17589290 DOI: 10.1097/cji.0b013e3180336771] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In the present study, we attempted a comprehensive analysis of human leukocyte antigen (HLA) class I-bound peptides presented on adult T-cell leukemia (ATL) cells by the latest technology of mass spectrometry combined with reversed phase liquid chromatography (LC/MS) to identify novel tumor-associated antigens. We screened the sequenced peptides for those compatible with the motives of the respective HLA class I alleles. Then, we narrowed down the candidate peptides according to the differential expression of their source proteins between ATL cells and normal CD4 T cells. Among these candidates, we focused on cyclin-dependent kinaselike 5 (CDKL5) because it was highly expressed in several ATL cell lines and some ATL clinical samples but not in normal CD4 T cells. To examine its immunogenicity, we stimulated CD8 T cells from an HLA-B62 healthy donor several times with autologous monocyte-derived dendritic cells loaded with HLA-B*62-restricted CDKL5 peptide1012-1021 QVNQAALLTY that we identified. CDKL5-stimulated bulk CD8 T cells exerted higher cytotoxicity against CDKL5 peptide-loaded autologous Epstein Barr virus-transformed B cell line (LCL) than against unloaded LCL. Furthermore these T cells had strong cytotoxic activity against HLA-B*62-positive CDKL5-positive but not HLA-B*62-negative CDKL5-positive ATL cells. These results demonstrate that CDKL5 is a novel tumor (leukemia) antigen in ATL and that the HLA-B*62-restricted CDKL5 peptide can be used for cytotoxic T-lymphocyte-mediated immunotherapy. Identification of tumor-associated antigens by LC/MS is an eligible and efficient method suitable for future taylor-made immunotherapy of hematologic malignancies.
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Affiliation(s)
- Masahiro Kawahara
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaracho, Sakyo, Kyoto 606-8507, Japan
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28
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Sabatté J, Maggini J, Nahmod K, Amaral MM, Martínez D, Salamone G, Ceballos A, Giordano M, Vermeulen M, Geffner J. Interplay of pathogens, cytokines and other stress signals in the regulation of dendritic cell function. Cytokine Growth Factor Rev 2007; 18:5-17. [PMID: 17321783 DOI: 10.1016/j.cytogfr.2007.01.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Dendritic cells (DCs) are the only antigen-presenting cell capable of activating naïve T lymphocytes, and hence they play a crucial role in the induction of adaptive immunity. Immature DCs sample and process antigens, and efficiently sense a large variety of signals from the surrounding environment. Upon activation, they become capable to activate naïve T cells and to direct the differentiation and polarization of effector T lymphocytes. It is becoming increasingly clear that different signals are able to determine distinct programs of DC differentiation and different forms of immunity and tolerance. In the past few years many advances have been made in addressing the action exerted by pathogen-associated molecular patterns (PAMPs), cytokines, chemokines, and other less characterized stress molecules on the activity of DCs. In this review we focus on the multiplicity of innate signals able to modulate the functional profile of DCs.
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Affiliation(s)
- Juan Sabatté
- Institute of Haematological Research, National Academy of Medicine and National Reference Centre for AIDS, Department of Microbiology, Buenos Aires University School of Medicine, Buenos Aires, Argentina
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29
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Shono M, Yoshimura M, Nakayama M, Yamamuro M, Abe K, Suzuki S, Mizuno Y, Sugiyama S, Saito Y, Nakao K, Yasue H, Ogawa H. Predominant Effect of A-Type Natriuretic Peptide on Reduction of Oxidative Stress During the Treatment of Patients With Heart Failure. Circ J 2007; 71:1040-6. [PMID: 17587708 DOI: 10.1253/circj.71.1040] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Oxidative stress plays an important role in the pathogenesis of heart failure and was investigated in the present study of the role of exogenous A-type natriuretic peptide (ANP) in the patients with heart failure and in cultured neonatal rat cardiomyocytes. METHODS AND RESULTS The first protocol was to examine if an infusion of human ANP (carperitide) changed serum levels of TRX (thioredoxin) during the treatment of patients with heart failure compared with conventional therapy using furosemide. Protocol 2 investigated whether ANP had a direct antioxidant action on the failing heart by measuring TRX gene expression and reactive oxygen species (ROS) production in cultured neonatal rat cardiomyocytes. In Protocol 1, 8 patients were treated with only an intravenous bolus of furosemide and 11 patients with only an intravenous infusion of carperitide for 24 h. Serum TRX levels significantly decreased at 4 h (p<0.03) and at 24 h (p<0.05) in the carperitide group, whereas they decreased slightly but were not significantly different in the furosemide group. In Protocol 2, it was found that a low dose of exogenous ANP of 10(-9) mol/L significantly suppressed TRX expression and ROS production in cardiomyocytes. CONCLUSION Carperitide infusion has a predominantly antioxidant action, in addition to improving the hemodynamics of patients with acute heart failure. Furthermore, carperitide infusion should have a direct antioxidant effect on the failing heart.
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Affiliation(s)
- Makoto Shono
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
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30
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Potter LR, Abbey-Hosch S, Dickey DM. Natriuretic peptides, their receptors, and cyclic guanosine monophosphate-dependent signaling functions. Endocr Rev 2006; 27:47-72. [PMID: 16291870 DOI: 10.1210/er.2005-0014] [Citation(s) in RCA: 700] [Impact Index Per Article: 38.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Natriuretic peptides are a family of structurally related but genetically distinct hormones/paracrine factors that regulate blood volume, blood pressure, ventricular hypertrophy, pulmonary hypertension, fat metabolism, and long bone growth. The mammalian members are atrial natriuretic peptide, B-type natriuretic peptide, C-type natriuretic peptide, and possibly osteocrin/musclin. Three single membrane-spanning natriuretic peptide receptors (NPRs) have been identified. Two, NPR-A/GC-A/NPR1 and NPR-B/GC-B/NPR2, are transmembrane guanylyl cyclases, enzymes that catalyze the synthesis of cGMP. One, NPR-C/NPR3, lacks intrinsic enzymatic activity and controls the local concentrations of natriuretic peptides through constitutive receptor-mediated internalization and degradation. Single allele-inactivating mutations in the promoter of human NPR-A are associated with hypertension and heart failure, whereas homozygous inactivating mutations in human NPR-B cause a form of short-limbed dwarfism known as acromesomelic dysplasia type Maroteaux. The physiological effects of natriuretic peptides are elicited through three classes of cGMP binding proteins: cGMP-dependent protein kinases, cGMP-regulated phosphodiesterases, and cyclic nucleotide-gated ion channels. In this comprehensive review, the structure, function, regulation, and biological consequences of natriuretic peptides and their associated signaling proteins are described.
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Affiliation(s)
- Lincoln R Potter
- Department of Biochemistry, Molecular Biology, and Biophysics, 6-155 Jackson Hall, 321 Church Street SE, University of Minnesota, Minneapolis, Minnesota 55455, USA.
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31
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Bender AT, Beavo JA. PDE1B2 regulates cGMP and a subset of the phenotypic characteristics acquired upon macrophage differentiation from a monocyte. Proc Natl Acad Sci U S A 2006; 103:460-5. [PMID: 16407168 PMCID: PMC1326187 DOI: 10.1073/pnas.0509972102] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Monocyte-to-macrophage differentiation with the cytokine granulocyte-macrophage colony-stimulating factor induces expression of the cyclic nucleotide phosphodiesterase PDE1B2. However, what role PDE1B2 plays in macrophage biology has not been elucidated. We have addressed this question by inhibiting PDE1B2 induction by using RNA interference. Using a retrovirus-based system, we created HL-60 stable cell lines that express a short-hairpin RNA targeting PDE1B2. HL-60 cells treated with phorbol-12-myristate-13-acetate differentiate to a macrophage-like phenotype and up-regulate PDE1B2. However, expression of PDE1B2 short hairpin RNA effectively suppresses PDE1B2 mRNA, protein, and activity up-regulation. Using the HL-60 PDE1B2 knockdown cells and agonists for either adenylyl or guanylyl cyclase, it was found that PDE1B2 predominantly regulates cGMP and plays a lesser role in cAMP regulation in response to cyclase agonists. Furthermore, in intact HL-60 cells, PDE1B2 activity can be regulated by changes in Ca+2 levels. Inhibiting PDE1B2 up-regulation does not prevent HL-60 cell differentiation, because several markers of macrophage differentiation are unaffected. However, suppression of PDE1B2 expression alters some aspects of the macrophage-like phenotype, because cell spreading, phagocytic ability, and CD11b expression are augmented. The cAMP analog 8-Bromo-cAMP reverses the changes caused by PDE1B2 knockdown. Also, PDE1B2 knockdown cells have lower basal levels of cAMP and alterations in the phosphorylation state of several probable PKA substrate proteins. Thus, the effects of PDE1B2 on differentiation may ultimately be mediated through decreased cAMP. In conclusion, PDE1B2 regulates a subset of phenotypic changes that occur upon phorbol-12-myristate-13-acetate-induced differentiation and likely also plays a role in differentiated macrophages by regulating agonist-stimulated cGMP levels.
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Affiliation(s)
- Andrew T Bender
- Department of Pharmacology, University of Washington Medical School, Seattle, WA 98195-7280, USA
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32
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Morita R, Uchiyama T, Hori T. Nitric oxide inhibits IFN-alpha production of human plasmacytoid dendritic cells partly via a guanosine 3',5'-cyclic monophosphate-dependent pathway. THE JOURNAL OF IMMUNOLOGY 2005; 175:806-12. [PMID: 16002677 DOI: 10.4049/jimmunol.175.2.806] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
NO, a free radical gas, is known to be critically involved not only in vascular relaxation but also in host defense. Besides direct bactericidal effects, NO has been shown to inhibit Th1 responses and modulate immune responses in vivo, although the precise mechanism is unclear. In this study, we examined the effect of NO on human plasmacytoid dendritic cells (pDCs) to explore the possibility that NO might affect innate as well as adaptive immunity through pDCs. We found that NO suppressed IFN-alpha production of pDCs partly via a cGMP-dependent mechanism, which was accompanied by down-regulation of IFN regulatory factor 7 expression. Furthermore, treatment of pDCs with NO decreased production of IL-6 and TNF-alpha and up-regulated OX40 ligand expression. In accordance with these changes, pDCs treated with NO plus CpG-oligodeoxynucleotide AAC-30 promoted differentiation of naive CD4(+) T cells into a Th2 phenotype. Moreover, pDCs did not express inducible NO synthase even after treatment with AAC-30, LPS, and several cytokines. These results suggest that exogenous NO and its second messenger, cGMP, alter innate as well as adaptive immune response through modulating the functions of pDCs and may be involved in the pathogenesis of certain Th2-dominant allergic diseases.
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Affiliation(s)
- Rimpei Morita
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, 50 Shogoin Kawara-cho, Sayko-ku, Kyoto 606-8507, Japan
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Abstract
Atrial natriuretic peptide (ANP) is a hormone predominately produced by the heart atria which regulates the water and salt balance as well as blood pressure homeostasis. Being expressed in various parts of the immune system a link of the peptide to the immune system has been proposed. In fact, this review focus on effects of ANP in the immune system and reports about the role of the peptide in innate immune functions as well as in the adaptive immune response.
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Affiliation(s)
- Angelika M Vollmar
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-University of Munich, Butenandtstr. 5-11, 81375 Munich, Germany.
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34
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35
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Delgado M, Reduta A, Sharma V, Ganea D. VIP/PACAP oppositely affects immature and mature dendritic cell expression of CD80/CD86 and the stimulatory activity for CD4(+) T cells. J Leukoc Biol 2004; 75:1122-30. [PMID: 15020654 DOI: 10.1189/jlb.1203626] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The neuropeptides vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase-activating polypeptide (PACAP) released within lymphoid organs from nerve terminals and/or immune cells play a significant, anti-inflammatory role by inhibiting macrophage-induced inflammatory reactions and promoting T helper cell type 2 (Th2) responses. However, dendritic cells (DC) and not macrophages often are the major antigen-presenting cells and link between innate and adaptive immunity. The role of VIP/PACAP in DC development and function is mostly unknown. Here, we report that bone marrow-derived DC express VIP/PACAP receptors and that VIP and PACAP exert a differential effect on immature DC (iDC) and lipopolysaccharide (LPS)-treated DC. In iDC, VIP/PACAP up-regulates CD86 expression and enables them to stimulate T cell proliferation and differentiation into Th2 effectors in vivo and in vitro. In contrast, VIP/PACAP down-regulates CD80/CD86 expression in LPS-stimulated DC and strongly reduces their capacity to stimulate T cell proliferation and secretion of Th1 and Th2 cytokines. The VIP/PACAP effects on iDC and LPS-stimulated DC are mediated primarily through the VIP receptor 1. These results indicate that neuropeptides such as VIP and PACAP can differentially affect the function of iDC and mature DC. In the absence of an ongoing immune response, VIP/PACAP contributes to the initiation of Th2-type immunity, whereas in the presence of a full-blown, inflammatory reaction, VIP/PACAP act as anti-inflammatory agents.
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/metabolism
- B7-1 Antigen/genetics
- B7-1 Antigen/metabolism
- B7-2 Antigen
- Bone Marrow/metabolism
- CD4-Positive T-Lymphocytes/immunology
- Cell Differentiation/immunology
- Cell Division/immunology
- Cytokines/metabolism
- Dendritic Cells/drug effects
- Dendritic Cells/metabolism
- Dual Specificity Phosphatase 2
- Immunity, Innate/physiology
- Lipopolysaccharides/pharmacology
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Transgenic
- Neuropeptides/pharmacology
- Pituitary Adenylate Cyclase-Activating Polypeptide
- Protein Phosphatase 2
- Protein Tyrosine Phosphatases/genetics
- Protein Tyrosine Phosphatases/metabolism
- Receptors, Vasoactive Intestinal Peptide/genetics
- Receptors, Vasoactive Intestinal Peptide/metabolism
- Receptors, Vasoactive Intestinal Peptide, Type II
- Receptors, Vasoactive Intestinal Polypeptide, Type I
- Reverse Transcriptase Polymerase Chain Reaction
- Spleen/immunology
- Spleen/metabolism
- Th1 Cells/immunology
- Th2 Cells/immunology
- Vasoactive Intestinal Peptide/pharmacology
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Affiliation(s)
- Mario Delgado
- Department of Biological Sciences, 101 Warren St., Newark, NJ 07102, USA
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36
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Namazi MR. The addition of diuretics to corticosteroids with high mineralocorticoid activity may lead to the better control of humoral autoimmune disorders. Int Immunopharmacol 2004; 4:325. [PMID: 14996424 DOI: 10.1016/j.intimp.2003.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2003] [Accepted: 12/10/2003] [Indexed: 11/17/2022]
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Abstract
The activation of dendritic cells (DC) via Toll-like receptors (TLRs) plays a decisive role in shaping the outcome of primary immune responses. Following TLR engagement by microbial products, DC migrate from peripheral tissues to lymphoid organs and up-regulate major histocompatibility complex and costimulatory molecules, acquiring the unique capacity to prime pathogen-specific, naïve T cells. In addition, DC determine the character of the ensuing immune response by secreting cytokines that drive the development of T cells into T helper cell type 1 (Th1), Th2, or T regulatory effector cells. Three major factors influence the pattern of cytokines released by DC and accordingly, the Th balance: the lineage to which DC belong; the maturation stimulus; and inflammatory mediators present at the site of infection. A major focus of this review is the capacity of DC to integrate these factors and elicit distinct classes of immune responses.
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Affiliation(s)
- Alessandra Mazzoni
- Experimental Immunology Branch, National Cancer Institute, Bethesda, MD, USA
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Yilmaz A, Reiss C, Tantawi O, Weng A, Stumpf C, Raaz D, Ludwig J, Berger T, Steinkasserer A, Daniel WG, Garlichs CD. HMG-CoA reductase inhibitors suppress maturation of human dendritic cells: new implications for atherosclerosis. Atherosclerosis 2004; 172:85-93. [PMID: 14709361 DOI: 10.1016/j.atherosclerosis.2003.10.002] [Citation(s) in RCA: 108] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The beneficial effects of statins in atherosclerosis have been partly attributed to their immunomodulating functions. Dendritic cells (DC), which are "professional" antigen-presenting cells, were recently detected in atherosclerotic plaques. It is assumed that DC play a critical role in the immunological processes related to atherosclerosis. Thus, we investigated the effects of statins on maturation and antigen-presenting function of DC. Human monocyte-derived DC were incubated with simvastatin or atorvastatin (1-10microM) for different periods (1-48h), and were subsequently stimulated with a cytokine cocktail (1.25ng/ml TNF-alpha, 1ng/ml Il-1beta, and 0.5microg/ml prostaglandin E(2)) to induce maturation. In contrast to untreated DC, statin-preincubated DC exhibited an immature phenotype and a significantly lower expression of the maturation-associated markers CD83, CD40, CD86, HLA-DR, and CCR7. The inhibitory statin effect was completely reversed by mevalonate or geranylgeranyl pyrophosphate. In addition, preincubation with statins significantly reduced the ability of cytokine-stimulated DC to induce T cell proliferation. In the present study, we have shown that statins inhibit the maturation and antigen-presenting function of human myeloid dendritic cells, thus maybe contributing to their beneficial effects in atherosclerosis. Therefore, the use of statins as immunomodulators might also provide a new therapeutic approach to other immunological disorders.
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Affiliation(s)
- Atilla Yilmaz
- Medical Clinic II, University Erlangen-Nuremberg, Ulmenweg 18, 91054, Erlangen, Germany.
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