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Abstract
PURPOSE OF REVIEW In recent years, a vast body of evidence has accumulated indicating the role of the immune system in the regulation of blood pressure and modulation of hypertensive pathology. Numerous cells of the immune system, both innate and adaptive immunity, have been indicated to play an important role in the development and maintenance of hypertension. The purpose of this review was to summarize the role of adaptive immunity in experimental models of hypertension (genetic, salt-sensitive, and Angiotensin (Ang) II induced) and in human studies. In particular, the role of T and B cells is discussed. RECENT FINDINGS In response to hypertensive stimuli such as Ang II and high salt, T cells become pro-inflammatory and they infiltrate the brain, blood vessel adventitia and periadventitial fat, heart, and the kidney. Pro-inflammatory T cell-derived cytokines such as IFN-γ and TNF-α (from CD8+ and CD4+Th1) and IL-17A (from the γδ-T cell and CD4+Th17) exacerbate hypertensive responses mediating both endothelial dysfunction and cardiac, renal, and neurodegenerative injury. The modulation of adaptive immune activation in hypertension has been attributed to target organ oxidative stress that leads to the generation of neoantigens, including isolevuglandin-modified proteins. The role of adaptive immunity is sex-specific with much more pronounced mechanisms in males than that in females. Hypertension is also associated with B cell activation and production of autoantibodies (anti-Hsp70, anti-Hsp65, anti-Hsp60, anti-AT1R, anti-α1AR, and anti-β1AR). The hypertensive responses can be inhibited by T regulatory lymphocytes (Tregs) and their anti-inflammatory IL-10. Adaptive immunity and its interface with innate mechanisms may represent valuable targets in the modulation of blood pressure, as well as hypertension-related residual risk.
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Affiliation(s)
- Tomasz P Mikolajczyk
- Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Tomasz J Guzik
- Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland.
- BHF Centre for Excellence, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK.
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Abstract
Neuroimmune interaction is an emerging concept, wherein the nervous system modulates the immune system and vice versa. This concept is gaining attention as a novel therapeutic target in various inflammatory diseases including acute kidney injury (AKI). Vagus nerve stimulation or treatment with pulsed ultrasound activates the cholinergic anti-inflammatory pathway to prevent AKI in mice. The kidneys are innervated by sympathetic efferent and sensory afferent neurons, and these neurons also may play a role in the modulation of inflammation in AKI. In this review, we discuss several neural circuits with respect to the control of renal inflammation and AKI as well as optogenetics as a novel tool for understanding these complex neural circuits.
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Affiliation(s)
- Shinji Tanaka
- Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, VA
| | - Mark D Okusa
- Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, VA.
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Khan SI, Andrews KL, Jennings GL, Sampson AK, Chin-Dusting JPF. Y Chromosome, Hypertension and Cardiovascular Disease: Is Inflammation the Answer? Int J Mol Sci 2019; 20:ijms20122892. [PMID: 31200567 PMCID: PMC6627840 DOI: 10.3390/ijms20122892] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/23/2019] [Accepted: 04/26/2019] [Indexed: 01/17/2023] Open
Abstract
It is now becomingly increasingly evident that the functions of the mammalian Y chromosome are not circumscribed to the induction of male sex. While animal studies have shown variations in the Y are strongly accountable for blood pressure (BP), this is yet to be confirmed in humans. We have recently shown modulation of adaptive immunity to be a significant mechanism underpinning Y-chromosome-dependent differences in BP in consomic strains. This is paralleled by studies in man showing Y chromosome haplogroup is a significant predictor for coronary artery disease through influencing pathways of immunity. Furthermore, recent studies in mice and humans have shown that Y chromosome lineage determines susceptibility to autoimmune disease. Here we review the evidence in animals and humans that Y chromosome lineage influences hypertension and cardiovascular disease risk, with a novel focus on pathways of immunity as a significant pathway involved.
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Affiliation(s)
- Shanzana I Khan
- Department of Pharmacology, Monash University, Clayton, Victoria 3800, Australia.
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria 3004, Australia.
| | - Karen L Andrews
- Department of Pharmacology, Monash University, Clayton, Victoria 3800, Australia.
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria 3004, Australia.
| | - Garry L Jennings
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria 3004, Australia.
| | - Amanda K Sampson
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria 3004, Australia.
| | - Jaye P F Chin-Dusting
- Department of Pharmacology, Monash University, Clayton, Victoria 3800, Australia.
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria 3004, Australia.
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54
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Elkhatib SK, Case AJ. Autonomic regulation of T-lymphocytes: Implications in cardiovascular disease. Pharmacol Res 2019; 146:104293. [PMID: 31176794 DOI: 10.1016/j.phrs.2019.104293] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/22/2019] [Accepted: 05/31/2019] [Indexed: 12/20/2022]
Abstract
The nervous and immune systems both serve as essential assessors and regulators of physiological function. Recently, there has been a great interest in how the nervous and immune systems interact to modulate both physiological and pathological states. In particular, the autonomic nervous system has a direct line of communication with immune cells anatomically, and moreover, immune cells possess receptors for autonomic neurotransmitters. This circumstantial evidence is suggestive of a functional interplay between the two systems, and extensive research over the past few decades has demonstrated neurotransmitters such as the catecholamines (i.e. dopamine, norepinephrine, and epinephrine) and acetylcholine have potent immunomodulating properties. Furthermore, immune cells, particularly T-lymphocytes, have now been found to express the cellular machinery for both the synthesis and degradation of neurotransmitters, which suggests the ability for both autocrine and paracrine signaling from these cells independent of the nervous system. The details underlying the functional interplay of this complex network of neuroimmune communication are still unclear, but this crosstalk is suggestive of significant implications on the pathogenesis of a number of autonomic-dysregulated and inflammation-mediated diseases. In particular, it is widely accepted that numerous forms of cardiovascular diseases possess imbalanced autonomic tone as well as altered T-lymphocyte function, but a paucity of literature exists discussing the direct role of neurotransmitters in shaping the inflammatory microenvironment during the progression or therapeutic management of these diseases. This review seeks to provide a fundamental framework for this autonomic neuroimmune interaction within T-lymphocytes, as well as the implications this may have in cardiovascular diseases.
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Affiliation(s)
- Safwan K Elkhatib
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Adam J Case
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, United States.
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55
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Ren J, Crowley SD. Role of T-cell activation in salt-sensitive hypertension. Am J Physiol Heart Circ Physiol 2019; 316:H1345-H1353. [PMID: 30901277 PMCID: PMC6620682 DOI: 10.1152/ajpheart.00096.2019] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 02/02/2023]
Abstract
The contributions of T lymphocytes to the pathogenesis of salt-sensitive hypertension has been well established. Under hypertensive stimuli, naive T cells develop into different subsets, including Th1, Th2, Th17, Treg, and cytotoxic CD8+ T cells, depending on the surrounding microenviroment in organs. Distinct subsets of T cells may play totally different roles in tissue damage and hypertension. The underlying mechanisms by which hypertensive stimuli activate naive T cells involve many events and different organs, such as neoantigen presentation by dendritic cells, high salt concentration, and the milieu of oxidative stress in the kidney and vasculature. Infiltrating and activated T subsets in injured organs, in turn, exert considerable impacts on tissue dysfunction, including sodium retention in the kidney, vascular stiffness, and remodeling in the vasculature. Therefore, a thorough knowledge of T-cell actions in hypertension may provide novel insights into the development of new therapeutic strategies for patients with hypertension.
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Affiliation(s)
- Jiafa Ren
- Division of Nephrology, Department of Medicine, Durham Veterans Affairs and Duke University Medical Centers , Durham, North Carolina
| | - Steven D Crowley
- Division of Nephrology, Department of Medicine, Durham Veterans Affairs and Duke University Medical Centers , Durham, North Carolina
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Carnagarin R, Matthews V, Zaldivia MTK, Peter K, Schlaich MP. The bidirectional interaction between the sympathetic nervous system and immune mechanisms in the pathogenesis of hypertension. Br J Pharmacol 2019; 176:1839-1852. [PMID: 30129037 PMCID: PMC6534787 DOI: 10.1111/bph.14481] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 07/26/2018] [Accepted: 08/05/2018] [Indexed: 12/14/2022] Open
Abstract
Over the last few years, evidence has accumulated to suggest that hypertension is, at least in part, an immune-mediated inflammatory disorder. Many links between immunity and hypertension have been established and provide a complex framework of mechanistic interactions contributing to the rise in BP. These include immune-mediated inflammatory processes affecting regulatory brain nuclei and interactions with other mediators of cardiovascular regulation such as the sympathetic nervous system. Sympathoexcitation differentially regulates T-cells based upon activation status of the immune cell as well as the resident organ. Exogenous and endogenous triggers activate signalling pathways in innate and adaptive immune cells resulting in pro-inflammatory cytokine production and activation of T-lymphocytes in the cardiovascular and renal regions, now considered major factors in the development of essential hypertension. The inflammatory cascade is sustained and exacerbated by the immune flow via the brain-bone marrow-spleen-gastrointestinal axis and thereby further aggravating immune-mediated pathways resulting in a vicious cycle of established hypertension and target organ damage. This review summarizes the evidence and recent advances in linking immune-mediated inflammation, sympathetic activation and their bidirectional interactions with the development of hypertension. LINKED ARTICLES: This article is part of a themed section on Immune Targets in Hypertension. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v176.12/issuetoc.
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Affiliation(s)
- Revathy Carnagarin
- Dobney Hypertension Centre, School of Medicine – Royal Perth Hospital UnitThe University of Western AustraliaPerthWAAustralia
| | - Vance Matthews
- Dobney Hypertension Centre, School of Medicine – Royal Perth Hospital UnitThe University of Western AustraliaPerthWAAustralia
| | - Maria T K Zaldivia
- Atherothrombosis and Vascular BiologyBaker Heart and Diabetes InstituteMelbourneVicAustralia
- Department of MedicineMonash University, Royal Perth HospitalPerthWAAustralia
| | - Karlheinz Peter
- Atherothrombosis and Vascular BiologyBaker Heart and Diabetes InstituteMelbourneVicAustralia
- Department of MedicineMonash University, Royal Perth HospitalPerthWAAustralia
| | - Markus P Schlaich
- Dobney Hypertension Centre, School of Medicine – Royal Perth Hospital UnitThe University of Western AustraliaPerthWAAustralia
- Department of CardiologyRoyal Perth HospitalPerthWAAustralia
- Department of NephrologyRoyal Perth HospitalPerthWAAustralia
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57
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Parchem JG, Kanasaki K, Kanasaki M, Sugimoto H, Xie L, Hamano Y, Lee SB, Gattone VH, Parry S, Strauss JF, Garovic VD, McElrath TF, Lu KH, Sibai BM, LeBleu VS, Carmeliet P, Kalluri R. Loss of placental growth factor ameliorates maternal hypertension and preeclampsia in mice. J Clin Invest 2018; 128:5008-5017. [PMID: 30179860 PMCID: PMC6205389 DOI: 10.1172/jci99026] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 08/28/2018] [Indexed: 12/28/2022] Open
Abstract
Preeclampsia remains a clinical challenge due to its poorly understood pathogenesis. A prevailing notion is that increased placental production of soluble fms-like tyrosine kinase-1 (sFlt-1) causes the maternal syndrome by inhibiting proangiogenic placental growth factor (PlGF) and VEGF. However, the significance of PlGF suppression in preeclampsia is uncertain. To test whether preeclampsia results from the imbalance of angiogenic factors reflected by an abnormal sFlt-1/PlGF ratio, we studied PlGF KO (Pgf-/-) mice and noted that the mice did not develop signs or sequelae of preeclampsia despite a marked elevation in circulating sFLT-1. Notably, PlGF KO mice had morphologically distinct placentas, showing an accumulation of junctional zone glycogen. We next considered the role of placental PlGF in an established model of preeclampsia (pregnant catechol-O-methyltransferase-deficient [COMT-deficient] mice) by generating mice with deletions in both the Pgf and Comt genes. Deletion of placental PlGF in the context of COMT loss resulted in a reduction in maternal blood pressure and increased placental glycogen, indicating that loss of PlGF might be protective against the development of preeclampsia. These results identify a role for PlGF in placental development and support a complex model for the pathogenesis of preeclampsia beyond an angiogenic factor imbalance.
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Affiliation(s)
- Jacqueline G Parchem
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA
| | - Keizo Kanasaki
- Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Megumi Kanasaki
- Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Hikaru Sugimoto
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Liang Xie
- Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Yuki Hamano
- Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Soo Bong Lee
- Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Vincent H Gattone
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Samuel Parry
- Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jerome F Strauss
- Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - Vesna D Garovic
- Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Thomas F McElrath
- Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Karen H Lu
- Department of Gynecologic Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Baha M Sibai
- Department of Obstetrics, Gynecology and Reproductive Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Valerie S LeBleu
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, Katholieke Universiteit (KU) Leuven, Leuven, Belgium
- Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, Center for Cancer Biology (CCB), Vlaams Instituut voor Biotechnologie (VIB), Leuven, Belgium
| | - Raghu Kalluri
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
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58
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Carnevale D, Facchinello N, Iodice D, Bizzotto D, Perrotta M, De Stefani D, Pallante F, Carnevale L, Ricciardi F, Cifelli G, Da Ros F, Casaburo M, Fardella S, Bonaldo P, Innocenzi G, Rizzuto R, Braghetta P, Lembo G, Bressan GM. Loss of EMILIN-1 Enhances Arteriolar Myogenic Tone Through TGF-β (Transforming Growth Factor-β)–Dependent Transactivation of EGFR (Epidermal Growth Factor Receptor) and Is Relevant for Hypertension in Mice and Humans. Arterioscler Thromb Vasc Biol 2018; 38:2484-2497. [DOI: 10.1161/atvbaha.118.311115] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Daniela Carnevale
- From the Department of Molecular Medicine, Sapienza University of Rome, Italy (D.C., M.P., G.L.)
- Department of Angiocardioneurology and Translational Medicine (D.C., D.I., F.P., L.C., G.C., M.C., S.F., G.L.), IRCCS Neuromed, Pozzilli, Italy
| | - Nicola Facchinello
- Department of Molecular Medicine (N.F., D.B., F.D.R., P. Bonaldo, P. Braghetta, G.M.B.), University of Padova, Italy
| | - Daniele Iodice
- Department of Angiocardioneurology and Translational Medicine (D.C., D.I., F.P., L.C., G.C., M.C., S.F., G.L.), IRCCS Neuromed, Pozzilli, Italy
| | - Dario Bizzotto
- Department of Molecular Medicine (N.F., D.B., F.D.R., P. Bonaldo, P. Braghetta, G.M.B.), University of Padova, Italy
| | - Marialuisa Perrotta
- From the Department of Molecular Medicine, Sapienza University of Rome, Italy (D.C., M.P., G.L.)
| | - Diego De Stefani
- Department of Biomedical Sciences (D.D.S., R.R.), University of Padova, Italy
| | - Fabio Pallante
- Department of Angiocardioneurology and Translational Medicine (D.C., D.I., F.P., L.C., G.C., M.C., S.F., G.L.), IRCCS Neuromed, Pozzilli, Italy
| | - Lorenzo Carnevale
- Department of Angiocardioneurology and Translational Medicine (D.C., D.I., F.P., L.C., G.C., M.C., S.F., G.L.), IRCCS Neuromed, Pozzilli, Italy
| | - Franco Ricciardi
- Department of Neurosurgery (F.R., G.I.), IRCCS Neuromed, Pozzilli, Italy
| | - Giuseppe Cifelli
- Department of Angiocardioneurology and Translational Medicine (D.C., D.I., F.P., L.C., G.C., M.C., S.F., G.L.), IRCCS Neuromed, Pozzilli, Italy
| | - Francesco Da Ros
- Department of Molecular Medicine (N.F., D.B., F.D.R., P. Bonaldo, P. Braghetta, G.M.B.), University of Padova, Italy
| | - Manuel Casaburo
- Department of Angiocardioneurology and Translational Medicine (D.C., D.I., F.P., L.C., G.C., M.C., S.F., G.L.), IRCCS Neuromed, Pozzilli, Italy
| | - Stefania Fardella
- Department of Angiocardioneurology and Translational Medicine (D.C., D.I., F.P., L.C., G.C., M.C., S.F., G.L.), IRCCS Neuromed, Pozzilli, Italy
| | - Paolo Bonaldo
- Department of Molecular Medicine (N.F., D.B., F.D.R., P. Bonaldo, P. Braghetta, G.M.B.), University of Padova, Italy
| | | | - Rosario Rizzuto
- Department of Biomedical Sciences (D.D.S., R.R.), University of Padova, Italy
| | - Paola Braghetta
- Department of Molecular Medicine (N.F., D.B., F.D.R., P. Bonaldo, P. Braghetta, G.M.B.), University of Padova, Italy
| | - Giuseppe Lembo
- From the Department of Molecular Medicine, Sapienza University of Rome, Italy (D.C., M.P., G.L.)
- Department of Angiocardioneurology and Translational Medicine (D.C., D.I., F.P., L.C., G.C., M.C., S.F., G.L.), IRCCS Neuromed, Pozzilli, Italy
| | - Giorgio M. Bressan
- Department of Molecular Medicine (N.F., D.B., F.D.R., P. Bonaldo, P. Braghetta, G.M.B.), University of Padova, Italy
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59
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Caillon A, Paradis P, Schiffrin EL. Role of immune cells in hypertension. Br J Pharmacol 2018; 176:1818-1828. [PMID: 29952002 DOI: 10.1111/bph.14427] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/22/2018] [Accepted: 06/18/2018] [Indexed: 12/19/2022] Open
Abstract
Inflammatory processes have been shown to play an important role in the mechanisms involved in the pathogenesis of hypertension. Innate and adaptive immune responses participate in BP elevation and end-organ damage. Here, we discuss recent studies focusing on novel inflammatory and immune mechanisms that play roles in BP elevation. Different subpopulations of cells involved in innate and adaptive immune responses, such as dendritic cells, monocytes/macrophages and NK cells, on the one hand, and B and T lymphocytes, on the other, contribute to the vascular and kidney injury in hypertension. Unconventional innate-like T cells such as γδ T cells also participate in hypertensive mechanisms by priming both innate and adaptive immune cells, contributing to trigger vascular inflammation and BP elevation. These cells exert their effects in part via production of various cytokines including pro-inflammatory IFN-γ and IL-17 and anti-inflammatory IL-10. The present review summarizes some of these immune mechanisms that participate in the pathophysiology of hypertension. LINKED ARTICLES: This article is part of a themed section on Immune Targets in Hypertension. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v176.12/issuetoc.
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Affiliation(s)
- Antoine Caillon
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal, QC, Canada
| | - Pierre Paradis
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal, QC, Canada
| | - Ernesto L Schiffrin
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal, QC, Canada.,Department of Medicine, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal, QC, Canada
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60
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Vasamsetti SB, Florentin J, Coppin E, Stiekema LCA, Zheng KH, Nisar MU, Sembrat J, Levinthal DJ, Rojas M, Stroes ESG, Kim K, Dutta P. Sympathetic Neuronal Activation Triggers Myeloid Progenitor Proliferation and Differentiation. Immunity 2018; 49:93-106.e7. [PMID: 29958804 PMCID: PMC6051926 DOI: 10.1016/j.immuni.2018.05.004] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 03/23/2018] [Accepted: 05/15/2018] [Indexed: 01/31/2023]
Abstract
There is a growing body of research on the neural control of immunity and inflammation. However, it is not known whether the nervous system can regulate the production of inflammatory myeloid cells from hematopoietic progenitor cells in disease conditions. Myeloid cell numbers in diabetic patients were strongly correlated with plasma concentrations of norepinephrine, suggesting the role of sympathetic neuronal activation in myeloid cell production. The spleens of diabetic patients and mice contained higher numbers of tyrosine hydroxylase (TH)-expressing leukocytes that produced catecholamines. Granulocyte macrophage progenitors (GMPs) expressed the β2 adrenergic receptor, a target of catecholamines. Ablation of splenic sympathetic neuronal signaling using surgical, chemical, and genetic approaches diminished GMP proliferation and myeloid cell development. Finally, mice lacking TH-producing leukocytes had reduced GMP proliferation, resulting in diminished myelopoiesis. Taken together, our study demonstrates that catecholamines produced by leukocytes and sympathetic nerve termini promote GMP proliferation and myeloid cell development.
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Affiliation(s)
- Sathish Babu Vasamsetti
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jonathan Florentin
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Emilie Coppin
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Lotte C A Stiekema
- Department of Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Kang H Zheng
- Department of Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Muhammad Umer Nisar
- Department of Bioengineering, University of Pittsburgh School of Engineering, Pittsburgh, PA, USA
| | - John Sembrat
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA; Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA; The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - David J Levinthal
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mauricio Rojas
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA; Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA; The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh Medical Center, Pittsburgh, PA, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Erik S G Stroes
- Department of Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Kang Kim
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh School of Engineering, Pittsburgh, PA, USA; Division of Cardiology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Partha Dutta
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA; Division of Cardiology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
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61
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Guzik TJ, Skiba DS, Touyz RM, Harrison DG. The role of infiltrating immune cells in dysfunctional adipose tissue. Cardiovasc Res 2018; 113:1009-1023. [PMID: 28838042 PMCID: PMC5852626 DOI: 10.1093/cvr/cvx108] [Citation(s) in RCA: 281] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 07/05/2017] [Indexed: 12/15/2022] Open
Abstract
Adipose tissue (AT) dysfunction, characterized by loss of its homeostatic functions, is a hallmark of non-communicable diseases. It is characterized by chronic low-grade inflammation and is observed in obesity, metabolic disorders such as insulin resistance and diabetes. While classically it has been identified by increased cytokine or chemokine expression, such as increased MCP-1, RANTES, IL-6, interferon (IFN) gamma or TNFα, mechanistically, immune cell infiltration is a prominent feature of the dysfunctional AT. These immune cells include M1 and M2 macrophages, effector and memory T cells, IL-10 producing FoxP3+ T regulatory cells, natural killer and NKT cells and granulocytes. Immune composition varies, depending on the stage and the type of pathology. Infiltrating immune cells not only produce cytokines but also metalloproteinases, reactive oxygen species, and chemokines that participate in tissue remodelling, cell signalling, and regulation of immunity. The presence of inflammatory cells in AT affects adjacent tissues and organs. In blood vessels, perivascular AT inflammation leads to vascular remodelling, superoxide production, endothelial dysfunction with loss of nitric oxide (NO) bioavailability, contributing to vascular disease, atherosclerosis, and plaque instability. Dysfunctional AT also releases adipokines such as leptin, resistin, and visfatin that promote metabolic dysfunction, alter systemic homeostasis, sympathetic outflow, glucose handling, and insulin sensitivity. Anti-inflammatory and protective adiponectin is reduced. AT may also serve as an important reservoir and possible site of activation in autoimmune-mediated and inflammatory diseases. Thus, reciprocal regulation between immune cell infiltration and AT dysfunction is a promising future therapeutic target.
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Affiliation(s)
- Tomasz J Guzik
- British Heart Foundation Centre for Excellence, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland, UK.,Translational Medicine Laboratory, Department of Internal Medicine, Jagiellonian University, Collegium Medicum, Krakow, Poland
| | - Dominik S Skiba
- British Heart Foundation Centre for Excellence, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland, UK.,Translational Medicine Laboratory, Department of Internal Medicine, Jagiellonian University, Collegium Medicum, Krakow, Poland
| | - Rhian M Touyz
- British Heart Foundation Centre for Excellence, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland, UK
| | - David G Harrison
- British Heart Foundation Centre for Excellence, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland, UK.,Department of Clinical Pharmacology, Vanderbilt University, Nashville, TN, USA
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Van Beusecum JP, Harrison DG. The nerve of the spleen! Causing hypertension by placental growth factor. Cardiovasc Res 2018; 114:356-357. [PMID: 29432537 DOI: 10.1093/cvr/cvy029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Justin P Van Beusecum
- Division of Clinical Pharmacology, Department of Medicine, 2220 Pierce Ave, 536 Robinson Research Building, Vanderbilt University School of Medicine, Nashville, TN 37232-6602, USA
| | - David G Harrison
- Division of Clinical Pharmacology, Department of Medicine, 2220 Pierce Ave, 536 Robinson Research Building, Vanderbilt University School of Medicine, Nashville, TN 37232-6602, USA
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Frantz S, Falcao-Pires I, Balligand JL, Bauersachs J, Brutsaert D, Ciccarelli M, Dawson D, de Windt LJ, Giacca M, Hamdani N, Hilfiker-Kleiner D, Hirsch E, Leite-Moreira A, Mayr M, Thum T, Tocchetti CG, van der Velden J, Varricchi G, Heymans S. The innate immune system in chronic cardiomyopathy: a European Society of Cardiology (ESC) scientific statement from the Working Group on Myocardial Function of the ESC. Eur J Heart Fail 2018; 20:445-459. [PMID: 29333691 PMCID: PMC5993315 DOI: 10.1002/ejhf.1138] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 12/03/2017] [Accepted: 12/18/2017] [Indexed: 12/11/2022] Open
Abstract
Activation of the immune system in heart failure (HF) has been recognized for over 20 years. Initially, experimental studies demonstrated a maladaptive role of the immune system. However, several phase III trials failed to show beneficial effects in HF with therapies directed against an immune activation. Preclinical studies today describe positive and negative effects of immune activation in HF. These different effects depend on timing and aetiology of HF. Therefore, herein we give a detailed review on immune mechanisms and their importance for the development of HF with a special focus on commonalities and differences between different forms of cardiomyopathies. The role of the immune system in ischaemic, hypertensive, diabetic, toxic, viral, genetic, peripartum, and autoimmune cardiomyopathy is discussed in depth. Overall, initial damage to the heart leads to disease specific activation of the immune system whereas in the chronic phase of HF overlapping mechanisms occur in different aetiologies.
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Affiliation(s)
- Stefan Frantz
- Department of Internal Medicine I, University Hospital Würzburg, Germany; Department of Internal Medicine III, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Ines Falcao-Pires
- Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Jean-Luc Balligand
- Pole of Pharmacology and Therapeutics, Institut de Recherche Experimentale et Clinique (IREC), and Clinique Universitaire Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Johann Bauersachs
- Department of Cardiology and Angiology, Medizinische Hochschule, Hannover, Germany
| | | | - Michele Ciccarelli
- Department of Medicine and Surgery, University of Salerno, Baronissi, Italy
| | - Dana Dawson
- School of Medicine and Dentistry, University of Aberdeen, Aberdeen, Scotland
| | - Leon J de Windt
- Department of Cardiology, CARIM School for Cardiovascular Diseases Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Mauro Giacca
- International Centre for Genetic Engineering and Biotechnology (ICGEB) and Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Nazha Hamdani
- Department of Cardiovascular Physiology, Ruhr University Bochum, Bochum, Germany
| | - Denise Hilfiker-Kleiner
- Molecular Cardiology, Department of Cardiology and Angiology, Medizinische Hochschule, Hannover, Germany
| | - Emilio Hirsch
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Adelino Leite-Moreira
- Department of Physiology and Cardiothoracic Surgery and Cardiovascular Research Centre, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Manuel Mayr
- The James Black Centre and King's British Heart Foundation Centre, King's College, University of London, London, UK
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), IFB-Tx, and REBIRTH Excellence Cluster, Hannover Medical School, Hannover, Germany
| | - Carlo G Tocchetti
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Jolanda van der Velden
- Department of Physiology, VU University Medical Center, Amsterdam Cardiovascular Sciences Institute, Amsterdam, The Netherlands.,Netherlands Heart Institute, Utrecht, The Netherlands
| | - Gilda Varricchi
- Department of Translational Medical Sciences, Federico II University, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), Federico II University, Naples, Italy
| | - Stephane Heymans
- Department of Cardiology, CARIM School for Cardiovascular Diseases Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.,Netherlands Heart Institute, Utrecht, The Netherlands.,Department of Cardiovascular Sciences, Leuven University, Leuven, Belgium
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Perrotta M, Lori A, Carnevale L, Fardella S, Cifelli G, Iacobucci R, Mastroiacovo F, Iodice D, Pallante F, Storto M, Lembo G, Carnevale D. Deoxycorticosterone acetate-salt hypertension activates placental growth factor in the spleen to couple sympathetic drive and immune system activation. Cardiovasc Res 2018; 114:456-467. [DOI: 10.1093/cvr/cvy001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 01/06/2018] [Indexed: 02/07/2023] Open
Affiliation(s)
- Marialuisa Perrotta
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Andrea Lori
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Lorenzo Carnevale
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Stefania Fardella
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Giuseppe Cifelli
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Roberta Iacobucci
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Francesco Mastroiacovo
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Daniele Iodice
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Fabio Pallante
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Marianna Storto
- Clinical Pathology Laboratory, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
| | - Giuseppe Lembo
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
- Department of Molecular Medicine, ‘Sapienza’ University of Rome, 00161 Rome, Italy
| | - Daniela Carnevale
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Isernia, Italy
- Department of Molecular Medicine, ‘Sapienza’ University of Rome, 00161 Rome, Italy
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Harwani SC. Macrophages under pressure: the role of macrophage polarization in hypertension. Transl Res 2018; 191:45-63. [PMID: 29172035 PMCID: PMC5733698 DOI: 10.1016/j.trsl.2017.10.011] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/05/2017] [Accepted: 10/30/2017] [Indexed: 02/06/2023]
Abstract
Hypertension is a multifactorial disease involving the nervous, renal, and cardiovascular systems. Macrophages are the most abundant and ubiquitous immune cells, placing them in a unique position to serve as key mediators between these components. The polarization of macrophages confers vast phenotypic and functional plasticity, allowing them to act as proinflammatory, homeostatic, and anti-inflammatory agents. Key differences between the M1 and M2 phenotypes, the 2 subsets at the extremes of this polarization spectrum, place macrophages at a juncture to mediate many mechanisms involved in the pathogenesis of hypertension. Neuronal and non-neuronal regulation of the immune system, that is, the "neuroimmuno" axis, plays an integral role in the polarization of macrophages. In hypertension, the neuroimmuno axis results in synchronization of macrophage mobilization from immune cell reservoirs and their chemotaxis, via increased expression of chemoattractants, to end organs critical in the development of hypertension. This complicated system is largely coordinated by the dichotomous actions of the autonomic neuronal and non-neuronal activation of cholinergic, adrenergic, and neurohormonal receptors on macrophages, leading to their ability to "switch" between phenotypes at sites of active inflammation. Data from experimental models and human studies are in concordance with each other and support a central role for macrophage polarization in the pathogenesis of hypertension.
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Affiliation(s)
- Sailesh C Harwani
- Department of Internal Medicine, Iowa City, IA; Center for Immunology and Immune Based Diseases, Iowa City, IA; Abboud Cardiovascular Research Center, Iowa City, Io.
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67
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Targeting Interleukin-1β Protects from Aortic Aneurysms Induced by Disrupted Transforming Growth Factor β Signaling. Immunity 2017; 47:959-973.e9. [DOI: 10.1016/j.immuni.2017.10.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/18/2017] [Accepted: 10/26/2017] [Indexed: 01/11/2023]
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Joe MK, Lieberman RL, Nakaya N, Tomarev SI. Myocilin Regulates Metalloprotease 2 Activity Through Interaction With TIMP3. Invest Ophthalmol Vis Sci 2017; 58:5308-5318. [PMID: 29049729 PMCID: PMC5644706 DOI: 10.1167/iovs.16-20336] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Purpose To elucidate functions of wild-type myocilin, a secreted glycoprotein associated with glaucoma. Methods Lysates of mouse eyes were used for immunoprecipitation with affinity-purified antibodies against mouse myocilin. Shotgun proteomic analysis was used for the identification of proteins interacting with myocilin. Colocalization of myocilin and tissue inhibitor of metalloproteinases 3 (TIMP3) in different eye structures was investigated by a multiplex fluorescent in situ hybridization and immunofluorescent labeling with subsequent confocal microscopy. Matrix metalloproteinase 2 (MMP2) activity assay was used to test effects of myocilin on TIMP3 inhibitory action. Results TIMP3 was identified by a shotgun proteomic analysis as a protein that was coimmunoprecipitated with myocilin from eye lysates of wild-type and transgenic mice expressing elevated levels of mouse myocilin but not from lysates of transgenic mice expressing mutated mouse myocilin. Interaction of myocilin and TIMP3 was confirmed by coimmunoprecipitation of myocilin and TIMP3 from HEK293 cells transiently transfected with cDNAs encoding these proteins. The olfactomedin domain of myocilin is essential for interaction with TIMP3. In the eye, the main sites of myocilin and TIMP3 colocalization are the trabecular meshwork, sclera, and choroid. Using purified proteins, it has been shown that myocilin markedly enhanced the inhibitory activity of TIMP3 toward MMP2. Conclusions Myocilin may serve as a modulator of TIMP3 activity via interactions with the myocilin olfactomedin domain. Our data imply that in the case of MYOCILIN null or some glaucoma-causing mutations, inhibitory activity of TIMP3 toward MMP2 might be reduced, mimicking deleterious mutations in the TIMP3 gene.
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Affiliation(s)
- Myung Kuk Joe
- Section of Retinal Ganglion Cell Biology, Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Raquel L Lieberman
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia, United States
| | - Naoki Nakaya
- Section of Retinal Ganglion Cell Biology, Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Stanislav I Tomarev
- Section of Retinal Ganglion Cell Biology, Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, Maryland, United States
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69
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Zhang HC, Zhang ZS, Zhang L, Wang A, Zhu H, Li L, Si JQ, Li XZ, Ma KT. Connexin 43 in splenic lymphocytes is involved in the regulation of CD4+CD25+ T lymphocyte proliferation and cytokine production in hypertensive inflammation. Int J Mol Med 2017; 41:13-24. [PMID: 29115377 PMCID: PMC5746298 DOI: 10.3892/ijmm.2017.3201] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 09/27/2017] [Indexed: 12/11/2022] Open
Abstract
Chronic inflammation promotes the development of hypertension and is associated with increased T cell infiltration and cytokine production in impaired organs. Gap junction protein connexin 43 (Cx43), is ubiquitously expressed in immune cells and plays an important role in T cell proliferation and activation, and cytokine production. However, the correlation between Cx43 in T cells and the hypertensive inflammatory response remains unknown. Thus, in this study, we wished to examine this correlation. First, our results revealed that hypertension caused significant thickening of the vascular wall, inflammatory cell infiltration into part of the renal interstitium and glomerular atrophy, and it increased the tubular damage scores in the kidneys of spontaneously hypertensive rats (SHRs). Moreover, the SHRs exhibited stenosis in the central artery wall of the spleen with increased serum levels of interleukin (IL)-2 and IL-6 compared with normotensive Wistar-Kyoto (WKY) rats. The spleens of the SHRs exhibited a significantly decreased percentage of CD4+CD25+ (Treg) T cells. However, the percentages of CD3+, CD4+ and CD8+ T cell and the levels of CD4+Cx43 and CD8+Cx43 did not differ significantly between the SHRs and WKY rats. In cultured lymphocytes from the SHRs and WKY rats, low percentages of Treg cells and reduced cytokine (IL-2 and IL-6) mRNA expression levels were observed in the lymphocytes obtained from the SHRs and WKY rats treated with the connexin blocker, Gap27, or concanavalin A (ConA) plus Gap27. The effects of ConA and Gap27 differed between the SHRs and WKY rats. On the whole, our findings demonstrate that the splenic Treg cell-mediated suppression in SHRs may be involved in hypertensive inflammatory responses. Cx43 in the gap junctional channel may regulate lymphocyte activation and inflammatory cytokine production.
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Affiliation(s)
- Hai-Chao Zhang
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang 832000, P.R. China
| | - Zhong-Shuang Zhang
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang 832000, P.R. China
| | - Liang Zhang
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang 832000, P.R. China
| | - Ai Wang
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang 832000, P.R. China
| | - He Zhu
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang 832000, P.R. China
| | - Li Li
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang 832000, P.R. China
| | - Jun-Qiang Si
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang 832000, P.R. China
| | - Xin-Zhi Li
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang 832000, P.R. China
| | - Ke-Tao Ma
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang 832000, P.R. China
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Nosalski R, Guzik TJ. Perivascular adipose tissue inflammation in vascular disease. Br J Pharmacol 2017; 174:3496-3513. [PMID: 28063251 PMCID: PMC5610164 DOI: 10.1111/bph.13705] [Citation(s) in RCA: 246] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 12/29/2016] [Accepted: 01/04/2017] [Indexed: 12/11/2022] Open
Abstract
Perivascular adipose tissue (PVAT) plays a critical role in the pathogenesis of cardiovascular disease. In vascular pathologies, perivascular adipose tissue increases in volume and becomes dysfunctional, with altered cellular composition and molecular characteristics. PVAT dysfunction is characterized by its inflammatory character, oxidative stress, diminished production of vaso-protective adipocyte-derived relaxing factors and increased production of paracrine factors such as resistin, leptin, cytokines (IL-6 and TNF-α) and chemokines [RANTES (CCL5) and MCP-1 (CCL2)]. These adipocyte-derived factors initiate and orchestrate inflammatory cell infiltration including primarily T cells, macrophages, dendritic cells, B cells and NK cells. Protective factors such as adiponectin can reduce NADPH oxidase superoxide production and increase NO bioavailability in the vessel wall, while inflammation (e.g. IFN-γ or IL-17) induces vascular oxidases and eNOS dysfunction in the endothelium, vascular smooth muscle cells and adventitial fibroblasts. All of these events link the dysfunctional perivascular fat to vascular dysfunction. These mechanisms are important in the context of a number of cardiovascular disorders including atherosclerosis, hypertension, diabetes and obesity. Inflammatory changes in PVAT's molecular and cellular responses are uniquely different from classical visceral or subcutaneous adipose tissue or from adventitia, emphasizing the unique structural and functional features of this adipose tissue compartment. Therefore, it is essential to develop techniques for monitoring the characteristics of PVAT and assessing its inflammation. This will lead to a better understanding of the early stages of vascular pathologies and the development of new therapeutic strategies focusing on perivascular adipose tissue. LINKED ARTICLES This article is part of a themed section on Molecular Mechanisms Regulating Perivascular Adipose Tissue - Potential Pharmacological Targets? To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.20/issuetoc.
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Affiliation(s)
- Ryszard Nosalski
- Institute of Cardiovascular and Medical SciencesUniversity of GlasgowScotlandUK
- Department of Internal and Agricultural MedicineJagiellonian University, Collegium MedicumKrakowPoland
| | - Tomasz J Guzik
- Institute of Cardiovascular and Medical SciencesUniversity of GlasgowScotlandUK
- Department of Internal and Agricultural MedicineJagiellonian University, Collegium MedicumKrakowPoland
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Lopez Gelston CA, Mitchell BM. Recent Advances in Immunity and Hypertension. Am J Hypertens 2017; 30:643-652. [PMID: 28200062 DOI: 10.1093/ajh/hpx011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 01/18/2017] [Indexed: 01/01/2023] Open
Abstract
Persistent immune system activation plays an important role in the development of various forms of hypertension. Activation of the innate immune system, inflammation, and subsequent adaptive immune system response causing end-organ injury and dysfunction ultimately leads to hypertension and its associated sequelae including coronary artery disease, heart failure, stroke, and chronic kidney disease. In this review, we will provide updates on the innate and adaptive immune cells involved in hypertension, the current understanding of how the immune system gets activated, and examine the recently discovered mechanisms involved in several forms of experimental hypertension.
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Affiliation(s)
- Catalina A Lopez Gelston
- Department of Medical Physiology, Texas A&M University Health Science Center, College Station, Texas, USA
| | - Brett M Mitchell
- Department of Medical Physiology, Texas A&M University Health Science Center, College Station, Texas, USA
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Rodriguez-Iturbe B, Pons H, Johnson RJ. Role of the Immune System in Hypertension. Physiol Rev 2017; 97:1127-1164. [PMID: 28566539 PMCID: PMC6151499 DOI: 10.1152/physrev.00031.2016] [Citation(s) in RCA: 256] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 03/02/2017] [Accepted: 03/02/2017] [Indexed: 02/07/2023] Open
Abstract
High blood pressure is present in more than one billion adults worldwide and is the most important modifiable risk factor of death resulting from cardiovascular disease. While many factors contribute to the pathogenesis of hypertension, a role of the immune system has been firmly established by a large number of investigations from many laboratories around the world. Immunosuppressive drugs and inhibition of individual cytokines prevent or ameliorate experimental hypertension, and studies in genetically-modified mouse strains have demonstrated that lymphocytes are necessary participants in the development of hypertension and in hypertensive organ injury. Furthermore, immune reactivity may be the driving force of hypertension in autoimmune diseases. Infiltration of immune cells, oxidative stress, and stimulation of the intrarenal angiotensin system are induced by activation of the innate and adaptive immunity. High blood pressure results from the combined effects of inflammation-induced impairment in the pressure natriuresis relationship, dysfunctional vascular relaxation, and overactivity of the sympathetic nervous system. Imbalances between proinflammatory effector responses and anti-inflammatory responses of regulatory T cells to a large extent determine the severity of inflammation. Experimental and human studies have uncovered autoantigens (isoketal-modified proteins and heat shock protein 70) of potential clinical relevance. Further investigations on the immune reactivity in hypertension may result in the identification of new strategies for the treatment of the disease.
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Affiliation(s)
- Bernardo Rodriguez-Iturbe
- Renal Service, Hospital Universitario, Universidad del Zulia, and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo, Venezuela; and Division of Renal Diseases and Hypertension, University of Colorado, Anschutz Campus, Aurora, Colorado
| | - Hector Pons
- Renal Service, Hospital Universitario, Universidad del Zulia, and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo, Venezuela; and Division of Renal Diseases and Hypertension, University of Colorado, Anschutz Campus, Aurora, Colorado
| | - Richard J Johnson
- Renal Service, Hospital Universitario, Universidad del Zulia, and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo, Venezuela; and Division of Renal Diseases and Hypertension, University of Colorado, Anschutz Campus, Aurora, Colorado
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The Spleen: A Hub Connecting Nervous and Immune Systems in Cardiovascular and Metabolic Diseases. Int J Mol Sci 2017; 18:ijms18061216. [PMID: 28590409 PMCID: PMC5486039 DOI: 10.3390/ijms18061216] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 05/30/2017] [Accepted: 06/02/2017] [Indexed: 12/14/2022] Open
Abstract
Metabolic disorders have been identified as major health problems affecting a large portion of the world population. In addition, obesity and insulin resistance are principal risk factors for the development of cardiovascular diseases. Altered immune responses are common features of both hypertension and obesity and, moreover, the involvement of the nervous system in the modulation of immune system is gaining even more attention in both pathophysiological contexts. For these reasons, during the last decades, researches focused their efforts on the comprehension of the molecular mechanisms connecting immune system to cardiovascular and metabolic diseases. On the other hand, it has been reported that in these pathological conditions, central neural pathways modulate the activity of the peripheral nervous system, which is strongly involved in onset and progression of the disease. It is interesting to notice that neural reflex can also participate in the modulation of immune functions. In this scenario, the spleen becomes the crucial hub allowing the interaction of different systems differently involved in metabolic and cardiovascular diseases. Here, we summarize the major findings that dissect the role of the immune system in disorders related to metabolic and cardiovascular dysfunctions, and how this could also be influenced by neural reflexes.
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Abstract
Hypertension tends to perpetuate in families and the heritability of hypertension is estimated to be around 20-60%. So far, the main proportion of this heritability has not been found by single-locus genome-wide association studies. Therefore, the current study explored gene-gene interactions that have the potential to partially fill in the missing heritability. A two-stage discovery-confirmatory analysis was carried out in the Framingham Heart Study cohorts. The first stage was an exhaustive pairwise search performed in 2320 early-onset hypertensive cases with matched normotensive controls from the offspring cohort. Then, identified gene-gene interactions were assessed in an independent set of 694 subjects from the original cohort. Four unique gene-gene interactions were found to be related to hypertension. Three detected genes were recognized by previous studies, and the other 5 loci/genes (MAN1A1, LMO3, NPAP1/SNRPN, DNAL4, and RNA5SP455/KRT8P5) were novel findings, which had no strong main effect on hypertension and could not be easily identified by single-locus genome-wide studies. Also, by including the identified gene-gene interactions, more variance was explained in hypertension. Overall, our study provides evidence that the genome-wide gene-gene interaction analysis has the possibility to identify new susceptibility genes, which can provide more insights into the genetic background of blood pressure regulation.
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Sun XN, Li C, Liu Y, Du LJ, Zeng MR, Zheng XJ, Zhang WC, Liu Y, Zhu M, Kong D, Zhou L, Lu L, Shen ZX, Yi Y, Du L, Qin M, Liu X, Hua Z, Sun S, Yin H, Zhou B, Yu Y, Zhang Z, Duan SZ. T-Cell Mineralocorticoid Receptor Controls Blood Pressure by Regulating Interferon-Gamma. Circ Res 2017; 120:1584-1597. [DOI: 10.1161/circresaha.116.310480] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/07/2017] [Accepted: 03/13/2017] [Indexed: 11/16/2022]
Abstract
Rationale:
Hypertension remains to be a global public health burden and demands novel intervention strategies such as targeting T cells and T-cell–derived cytokines. Mineralocorticoid receptor (MR) antagonists have been clinically used to treat hypertension. However, the function of T-cell MR in blood pressure (BP) regulation has not been elucidated.
Objective:
We aim to determine the role of T-cell MR in BP regulation and to explore the mechanism.
Methods and Results:
Using T-cell MR knockout mouse in combination with angiotensin II–induced hypertensive mouse model, we demonstrated that MR deficiency in T cells strikingly decreased both systolic and diastolic BP and attenuated renal and vascular damage. Flow cytometric analysis showed that T-cell MR knockout mitigated angiotensin II–induced accumulation of interferon-gamma (IFN-γ)–producing T cells, particularly CD8
+
population, in both kidneys and aortas. Similarly, eplerenone attenuated angiotensin II–induced elevation of BP and accumulation of IFN-γ–producing T cells in wild-type mice. In cultured CD8
+
T cells, T-cell MR knockout suppressed IFN-γ expression whereas T-cell MR overexpression and aldosterone both enhanced IFN-γ expression. At the molecular level, MR interacted with NFAT1 (nuclear factor of activated T-cells 1) and activator protein-1 in T cells. Finally, T-cell MR overexpressing mice manifested more elevated BP compared with control mice after angiotensin II infusion and such difference was abolished by IFN-γ–neutralizing antibodies.
Conclusions:
MR may interact with NFAT1 and activator protein-1 to control IFN-γ in T cells and to regulate target organ damage and ultimately BP. Targeting MR in T cells specifically may be an effective novel approach for hypertension treatment.
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Affiliation(s)
- Xue-Nan Sun
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Chao Li
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Yuan Liu
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Lin-Juan Du
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Meng-Ru Zeng
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Xiao-Jun Zheng
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Wu-Chang Zhang
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Yan Liu
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Mingjiang Zhu
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Deping Kong
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Li Zhou
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Limin Lu
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Zhu-Xia Shen
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Yi Yi
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Lili Du
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Mu Qin
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Xu Liu
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Zichun Hua
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Shuyang Sun
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Huiyong Yin
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Bin Zhou
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Ying Yu
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Zhiyuan Zhang
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
| | - Sheng-Zhong Duan
- From the Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People’s Hospital, School of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.-Z.D.), Shanghai Key Laboratory of Stomatology (X.-N.S., C.L., Y.L., L.-J.D., M.-R.Z., X.-J.Z., W.-C.Z., Y.L., S.S., Z.Z., S.-Z.D.), Department of Cardiology, Shanghai Chest Hospital (Y.Y., L.D., M.Q., X.L.), and Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People’s Hospital (S.S., Z.Z
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De Ciuceis C, Rossini C, Airò P, Scarsi M, Tincani A, Tiberio GAM, Piantoni S, Porteri E, Solaini L, Duse S, Semeraro F, Petroboni B, Mori L, Castellano M, Gavazzi A, Agabiti Rosei C, Agabiti Rosei E, Rizzoni D. Relationship Between Different Subpopulations of Circulating CD4+ T-lymphocytes and Microvascular Structural Alterations in Humans. Am J Hypertens 2017; 30:51-60. [PMID: 27653031 DOI: 10.1093/ajh/hpw102] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 07/18/2016] [Accepted: 08/04/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Different components of the immune system, including innate and adaptive immunity (T-effector lymphocytes and T-regulatory lymphocytes-TREGs) may be involved in the development of hypertension. In addition, it was demonstrated in animal models that TREGs may prevent angiotensin II-induced hypertension and vascular injury/inflammation. However, no data are presently available in humans about possible relationships between T-lymphocyte subtypes and microvascular structural alterations. METHODS For this purpose, in the present study, we enrolled 24 normotensive subjects and 12 hypertensive patients undergoing an elective surgical intervention. No sign of local or systemic inflammation was present. All patients underwent a biopsy of subcutaneous fat during surgery. Subcutaneous small resistance arteries were dissected and mounted on a wire myograph and the media to lumen ratio (M/L) was calculated. In addition, retinal arteriolar structure was evaluated noninvasively by scanning laser Doppler flowmetry. Capillary density in the nailfold, dorsum of the finger, and forearm were evaluated by videomicroscopy. A peripheral blood sample was obtained before surgery for assessment of T-lymphocyte subpopulations by flow cytometry. RESULTS Significant negative correlations were observed between indices of microvascular structure (M/L of subcutaneous small arteries and wall to lumen ratio of retinal arterioles) and circulating TREG lymphocytes. A direct correlation was observed between M/L of subcutaneous small arteries and circulating Th17 lymphocytes. In addition, total capillary density was correlated with a TREG effector memory subpopulation. CONCLUSION Our data suggest that some lymphocyte subpopulations may be related to microvascular remodeling, confirming previous animal data, and opening therapeutic possibilities.
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Affiliation(s)
- Carolina De Ciuceis
- Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Claudia Rossini
- Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Paolo Airò
- Clinica Chirurgica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Mirko Scarsi
- Clinica Chirurgica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Angela Tincani
- Clinica Chirurgica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | | | - Silvia Piantoni
- Clinica Chirurgica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Enzo Porteri
- Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Leonardo Solaini
- Institute of Rheumatology, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Sarah Duse
- Institute of Ophthalmology, University of Brescia, Brescia, Italy
| | | | - Beatrice Petroboni
- Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Luigi Mori
- Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Maurizio Castellano
- Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Alice Gavazzi
- Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Claudia Agabiti Rosei
- Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Enrico Agabiti Rosei
- Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Damiano Rizzoni
- Clinica Medica, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy;
- Istituto Clinico Città di Brescia, Division of Medicine, Brescia, Italy
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The Multifaceted Roles of PI3Kγ in Hypertension, Vascular Biology, and Inflammation. Int J Mol Sci 2016; 17:ijms17111858. [PMID: 27834808 PMCID: PMC5133858 DOI: 10.3390/ijms17111858] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/22/2016] [Accepted: 11/03/2016] [Indexed: 12/12/2022] Open
Abstract
PI3Kγ is a multifaceted protein, crucially involved in cardiovascular and immune systems. Several studies described the biological and physiological functions of this enzyme in the regulation of cardiovascular system, while others stressed its role in the modulation of immunity. Although PI3Kγ has been historically investigated for its role in leukocytes, the last decade of research also dedicated efforts to explore its functions in the cardiovascular system. In this review, we report an overview recapitulating how PI3Kγ signaling participates in the regulation of vascular functions involved in blood pressure regulation. Moreover, we also summarize the main functions of PI3Kγ in immune responses that could be potentially important in the interaction with the cardiovascular system. Considering that vascular and immune mechanisms are increasingly emerging as intertwining players in hypertension, PI3Kγ could be an intriguing pathway acting on both sides. The availability of specific inhibitors introduces a perspective of further translational research and clinical approaches that could be exploited in hypertension.
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78
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A cholinergic-sympathetic pathway primes immunity in hypertension and mediates brain-to-spleen communication. Nat Commun 2016; 7:13035. [PMID: 27676657 PMCID: PMC5052663 DOI: 10.1038/ncomms13035] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 08/29/2016] [Indexed: 01/04/2023] Open
Abstract
The crucial role of the immune system in hypertension is now widely recognized. We previously reported that hypertensive challenges couple the nervous drive with immune system activation, but the physiological and molecular mechanisms of this connection are unknown. Here, we show that hypertensive challenges activate splenic sympathetic nerve discharge to prime immune response. More specifically, a vagus-splenic nerve drive, mediated by nicotinic cholinergic receptors, links the brain and spleen. The sympathetic discharge induced by hypertensive stimuli was absent in both coeliac vagotomized mice and in mice lacking α7nAChR, a receptor typically expressed by peripheral ganglionic neurons. This cholinergic-sympathetic pathway is necessary for T cell activation and egression on hypertensive challenges. In addition, we show that selectively thermoablating the splenic nerve prevents T cell egression and protects against hypertension. This novel experimental procedure for selective splenic denervation suggests new clinical strategies for resistant hypertension. Immune system participates in the development of high blood pressure. Here the authors show that cholinergic-sympathetic pathway mediated by the α7nAChR receptor and the activation of splenic T cells prime immunity during hypertension and that selective splenic denervation protects against the onset of hypertension in mice.
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79
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Abstract
PURPOSE OF REVIEW Immune mechanisms exacerbate the severity of hypertension in humans and animal models of disease. This review summarizes recent mechanistic studies exploring the pathways whereby immunity influences salt-sensitive hypertension and renal disease. RECENT FINDINGS Emphasis is placed on the role of T cell subtypes, the mechanisms of T-cell activation, and the identification of potential antigens or neoantigens. SUMMARY Significant advancements have occurred in the search for pathways which activate the adaptive immune response. An enhanced understanding of the factors contributing to hypertension can lead to better therapies.
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80
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Fornai F, Carrizzo A, Forte M, Ambrosio M, Damato A, Ferrucci M, Biagioni F, Busceti C, Puca AA, Vecchione C. The inflammatory protein Pentraxin 3 in cardiovascular disease. IMMUNITY & AGEING 2016; 13:25. [PMID: 27559355 PMCID: PMC4995820 DOI: 10.1186/s12979-016-0080-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 08/15/2016] [Indexed: 12/12/2022]
Abstract
The acute phase protein Pentraxin 3 (PTX3) plays a non-redundant role as a soluble pattern recognition receptor for selected pathogens and it represents a rapid biomarker for primary local activation of innate immunity and inflammation. Recent evidence indicates that PTX3 exerts an important role in modulating the cardiovascular system in humans and experimental models. In particular, there are conflicting points concerning the effects of PTX3 in cardiovascular diseases (CVD) since several observations indicate a cardiovascular protective effect of PTX3 while others speculate that the increased plasma levels of PTX3 in subjects with CVD correlate with disease severity and with poor prognosis in elderly patients. In the present review, we discuss the multifaceted effects of PTX3 on the cardiovascular system focusing on its involvement in atherosclerosis, endothelial function, hypertension, myocardial infarction and angiogenesis. This may help to explain how the specific modulation of PTX3 such as the use of different dosing, time, and target organs could help to contain different vascular diseases. These opposite actions of PTX3 will be emphasized concerning the modulation of cardiovascular system where potential therapeutic implications of PTX3 in humans are discussed.
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Affiliation(s)
- Francesco Fornai
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy ; I.R.C.C.S. Neuromed, Pozzilli, IS Italy
| | | | | | | | | | - Michela Ferrucci
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | | | | | - Annibale A Puca
- Vascular Physiopathology Unit, I.R.C.C.S. Multimedica, Milan, Italy ; Department of Medicine and Surgery, University of Salerno, Via S. Allende, Baronissi, SA 84081 Italy
| | - Carmine Vecchione
- I.R.C.C.S. Neuromed, Pozzilli, IS Italy ; Department of Medicine and Surgery, University of Salerno, Via S. Allende, Baronissi, SA 84081 Italy
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81
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Caillon A, Schiffrin EL. Role of Inflammation and Immunity in Hypertension: Recent Epidemiological, Laboratory, and Clinical Evidence. Curr Hypertens Rep 2016; 18:21. [PMID: 26846785 DOI: 10.1007/s11906-016-0628-7] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Inflammation has been shown to play an important role in the mechanisms involved in the pathogenesis of hypertension. Accordingly, innate and adaptive immune responses participate in blood pressure elevation. Here, we describe recent immunity studies focusing on novel inflammatory mechanisms during the hypertensive process. Different subpopulations of cells involved in innate and adaptive immune responses, such as monocyte/macrophages and dendritic cells on the one hand and B and T lymphocytes on the other hand, play roles leading to vascular injury in hypertension. Innate lymphoid cells, including natural killer cells and γ/δ T cells, have recently been demonstrated to participate in hypertensive mechanisms triggering vascular inflammation. In summary, we discuss the evidence of interaction of these different inflammatory and immune components in both experimental models and in humans during the development of hypertension.
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Affiliation(s)
- Antoine Caillon
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, 3755 Côte-Ste-Catherine Rd., Montreal, QC, Canada, H3T 1E2.
| | - Ernesto L Schiffrin
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, 3755 Côte-Ste-Catherine Rd., Montreal, QC, Canada, H3T 1E2. .,Department of Medicine, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, #B-127, 3755 Côte-Ste-Catherine Rd., Montreal, QC, Canada, H3T 1E2.
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82
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Affiliation(s)
- Daniela Carnevale
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Pozzilli, Isernia, Italy.,Department of Molecular Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Giuseppe Lembo
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Pozzilli, Isernia, Italy.,Department of Molecular Medicine, "Sapienza" University of Rome, Rome, Italy
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83
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Hypertension and immunity: mechanisms of T cell activation and pathways of hypertension. Curr Opin Nephrol Hypertens 2016; 24:470-4. [PMID: 26125645 DOI: 10.1097/mnh.0000000000000146] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW The role of immune mechanisms to amplify hypertension in patients and animal models has been appreciated for decades. This review briefly summarizes recent studies exploring the mechanistic pathways, whereby the immune system participates in hypertension and renal disease. RECENT FINDINGS Emphasis in this review is placed upon recent studies exploring the role of T cell subtypes, newly described mechanisms of T cell activation, the identification of potential neoantigens, and environmental influences on immune cell activation. SUMMARY Significant advancements have been made in the search for antigens and pathways responsible for activation of the adaptive immune response, furthering our understanding of the factors contributing to hypertension and potentially leading to the development of new and more effective therapies.
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84
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Immunological Aspects of Hypertension. High Blood Press Cardiovasc Prev 2016; 23:91-5. [PMID: 27080378 DOI: 10.1007/s40292-016-0141-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 03/01/2016] [Indexed: 01/13/2023] Open
Abstract
Hypertension is a leading cause of morbidity and mortality worldwide, being the major risk factor for stroke, heart failure and kidney diseases. During past decades, several therapies have been developed to afford an optimal regulation of blood pressure levels. However, the prevalence of uncontrolled hypertension still represents an unsolved problem, with a number of patients resistant as well to all ongoing antihypertensive treatments, raising unsolved mechanistic challenges. In the last years, the most attractive novelty in hypertension research postulated that immune system may have a crucial role in blood pressure elevation, as well as in end-organ damage. Here we briefly review the most important contribution revealing the role of innate and adaptive immune system in hypertension. Moreover, we discuss evidence showing that, in the regulation of body hemodynamics, the immune system and the autonomic nervous systems serve as two major sensory organs whose interaction is crucial for blood pressure increase and target organ damage in hypertension.
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85
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Ordovas-Montanes J, Rakoff-Nahoum S, Huang S, Riol-Blanco L, Barreiro O, von Andrian UH. The Regulation of Immunological Processes by Peripheral Neurons in Homeostasis and Disease. Trends Immunol 2016; 36:578-604. [PMID: 26431937 DOI: 10.1016/j.it.2015.08.007] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Revised: 08/13/2015] [Accepted: 08/13/2015] [Indexed: 02/06/2023]
Abstract
The nervous system and the immune system are the principal sensory interfaces between the internal and external environment. They are responsible for recognizing, integrating, and responding to varied stimuli, and have the capacity to form memories of these encounters leading to learned or 'adaptive' future responses. We review current understanding of the cross-regulation between these systems. The autonomic and somatosensory nervous systems regulate both the development and deployment of immune cells, with broad functions that impact on hematopoiesis as well as on priming, migration, and cytokine production. In turn, specific immune cell subsets contribute to homeostatic neural circuits such as those controlling metabolism, hypertension, and the inflammatory reflex. We examine the contribution of the somatosensory system to autoimmune, autoinflammatory, allergic, and infectious processes in barrier tissues and, in this context, discuss opportunities for therapeutic manipulation of neuro-immune interactions.
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Affiliation(s)
- Jose Ordovas-Montanes
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Seth Rakoff-Nahoum
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA; Department of Medicine, Boston Children's Hospital, and Harvard Medical School, Boston, MA 02115, USA
| | - Siyi Huang
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | | | - Olga Barreiro
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Ulrich H von Andrian
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA; Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT), and Harvard University, Cambridge, MA 02139, USA.
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86
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Wenzel U, Turner JE, Krebs C, Kurts C, Harrison DG, Ehmke H. Immune Mechanisms in Arterial Hypertension. J Am Soc Nephrol 2015; 27:677-86. [PMID: 26319245 DOI: 10.1681/asn.2015050562] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Traditionally, arterial hypertension and subsequent end-organ damage have been attributed to hemodynamic factors, but increasing evidence indicates that inflammation also contributes to the deleterious consequences of this disease. The immune system has evolved to prevent invasion of foreign organisms and to promote tissue healing after injury. However, this beneficial activity comes at a cost of collateral damage when the immune system overreacts to internal injury, such as prehypertension. Renal inflammation results in injury and impaired urinary sodium excretion, and vascular inflammation leads to endothelial dysfunction, increased vascular resistance, and arterial remodeling and stiffening. Notably, modulation of the immune response can reduce the severity of BP elevation and hypertensive end-organ damage in several animal models. Indeed, recent studies have improved our understanding of how the immune response affects the pathogenesis of arterial hypertension, but the remarkable advances in basic immunology made during the last few years still await translation to the field of hypertension. This review briefly summarizes recent advances in immunity and hypertension as well as hypertensive end-organ damage.
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Affiliation(s)
| | | | | | - Christian Kurts
- Institutes of Molecular Medicine and Experimental Immunology, Rheinische Friedrich-Wilhelms University, Bonn, Germany; and
| | - David G Harrison
- Division of Clinical Pharmacology, Department of Medicine, Nashville, Tennessee
| | - Heimo Ehmke
- Department of Cellular and Integrative Physiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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87
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Shah KH, Shi P, Giani JF, Janjulia T, Bernstein EA, Li Y, Zhao T, Harrison DG, Bernstein KE, Shen XZ. Myeloid Suppressor Cells Accumulate and Regulate Blood Pressure in Hypertension. Circ Res 2015; 117:858-69. [PMID: 26294657 DOI: 10.1161/circresaha.115.306539] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 08/20/2015] [Indexed: 01/03/2023]
Abstract
RATIONALE Chronic inflammation is a major contributor to the progressive pathology of hypertension, and T-cell activation is required for the genesis of hypertension. However, the precise role of myeloid cells in this process is unclear. OBJECTIVE To characterize and understand the role of peripheral myeloid cells in the development of hypertension. METHODS AND RESULTS We examined myeloid cells in the periphery of hypertensive mice and found that increased numbers of CD11b(+)Gr1(+) myeloid cells in blood and the spleen are a characteristic of 3 murine models of experimental hypertension (angiotensin II, L-NG-nitroarginine methyl ester, and high salt). These cells express surface markers and transcription factors associated with immaturity and immunosuppression. Also, they produce hydrogen peroxide to suppress T-cell activation. These are characteristics of myeloid-derived suppressor cells (MDSCs). Depletion of hypertensive MDSCs increased blood pressure and renal inflammation. In contrast, adoptive transfer of wild-type MDSCs to hypertensive mice reduced blood pressure, whereas the transfer of nicotinamide adenine dinucleotide phosphate oxidase 2-deficient MDSCs did not. CONCLUSION The accumulation of MDSCs is a characteristic of experimental models of hypertension. MDSCs limit inflammation and the increase of blood pressure through the production of hydrogen peroxide.
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Affiliation(s)
- Kandarp H Shah
- From the Departments of Biomedical Sciences (K.H.S., J.F.G., T.J., E.A.B., T.Z., K.E.B., X.Z.S.), Pathology (K.E.B., X.Z.S.), and Neurology (P.S., Y.L.), Cedars-Sinai Medical Center, Los Angeles, CA; and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (D.G.H)
| | - Peng Shi
- From the Departments of Biomedical Sciences (K.H.S., J.F.G., T.J., E.A.B., T.Z., K.E.B., X.Z.S.), Pathology (K.E.B., X.Z.S.), and Neurology (P.S., Y.L.), Cedars-Sinai Medical Center, Los Angeles, CA; and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (D.G.H)
| | - Jorge F Giani
- From the Departments of Biomedical Sciences (K.H.S., J.F.G., T.J., E.A.B., T.Z., K.E.B., X.Z.S.), Pathology (K.E.B., X.Z.S.), and Neurology (P.S., Y.L.), Cedars-Sinai Medical Center, Los Angeles, CA; and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (D.G.H)
| | - Tea Janjulia
- From the Departments of Biomedical Sciences (K.H.S., J.F.G., T.J., E.A.B., T.Z., K.E.B., X.Z.S.), Pathology (K.E.B., X.Z.S.), and Neurology (P.S., Y.L.), Cedars-Sinai Medical Center, Los Angeles, CA; and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (D.G.H)
| | - Ellen A Bernstein
- From the Departments of Biomedical Sciences (K.H.S., J.F.G., T.J., E.A.B., T.Z., K.E.B., X.Z.S.), Pathology (K.E.B., X.Z.S.), and Neurology (P.S., Y.L.), Cedars-Sinai Medical Center, Los Angeles, CA; and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (D.G.H)
| | - You Li
- From the Departments of Biomedical Sciences (K.H.S., J.F.G., T.J., E.A.B., T.Z., K.E.B., X.Z.S.), Pathology (K.E.B., X.Z.S.), and Neurology (P.S., Y.L.), Cedars-Sinai Medical Center, Los Angeles, CA; and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (D.G.H)
| | - Tuantuan Zhao
- From the Departments of Biomedical Sciences (K.H.S., J.F.G., T.J., E.A.B., T.Z., K.E.B., X.Z.S.), Pathology (K.E.B., X.Z.S.), and Neurology (P.S., Y.L.), Cedars-Sinai Medical Center, Los Angeles, CA; and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (D.G.H)
| | - David G Harrison
- From the Departments of Biomedical Sciences (K.H.S., J.F.G., T.J., E.A.B., T.Z., K.E.B., X.Z.S.), Pathology (K.E.B., X.Z.S.), and Neurology (P.S., Y.L.), Cedars-Sinai Medical Center, Los Angeles, CA; and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (D.G.H)
| | - Kenneth E Bernstein
- From the Departments of Biomedical Sciences (K.H.S., J.F.G., T.J., E.A.B., T.Z., K.E.B., X.Z.S.), Pathology (K.E.B., X.Z.S.), and Neurology (P.S., Y.L.), Cedars-Sinai Medical Center, Los Angeles, CA; and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (D.G.H)
| | - Xiao Z Shen
- From the Departments of Biomedical Sciences (K.H.S., J.F.G., T.J., E.A.B., T.Z., K.E.B., X.Z.S.), Pathology (K.E.B., X.Z.S.), and Neurology (P.S., Y.L.), Cedars-Sinai Medical Center, Los Angeles, CA; and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (D.G.H).
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88
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Zhong XL, Miao HJ, Fang ZM, Kuken B, Song HY, Zhong H, Lu Y, Liu SM. The effect of SIRT1 gene polymorphisms on ambulatory blood pressure of hypertensive patients in the Kazakh population. Genet Test Mol Biomarkers 2015; 19:561-5. [PMID: 26284905 DOI: 10.1089/gtmb.2015.0111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVE To investigate the effect of silent information regulator 1 (SIRT1) gene polymorphisms on ambulatory blood pressure in hypertensive patients. METHODS Three hundred forty hypertensive patients were recruited from January 2013 to January 2015. SIRT1 Tag single-nucleotide polymorphisms (SNPs; rs2273773, rs4746720, and rs7896005) were genotyped using a PCR-direct sequencing method, and the association between the SIRT1 gene SNPs and ambulatory blood pressure was analyzed. RESULTS After adjusting for confounding factors, patients with the rs2273773/CT+CC genotypes had lower 24-h systolic and diastolic blood pressures; there were no associations between rs4746720 and rs7896005 genotypes and blood pressure. CONCLUSION The SIRT1 gene polymorphism (rs2273773) is significantly associated with ambulatory blood pressure level in Han Chinese patients with hypertension.
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Affiliation(s)
- Xiao-Lan Zhong
- 1 Department of Cardiology, The Second Affiliated Hospital of Xinjiang Medical University , Urumqi, China
| | - Hai-Jun Miao
- 2 No. 1 Department of Cadre Ward, The First Affiliated Hospital of Xinjiang Medical University , Urumqi, China
| | - Zhi-Min Fang
- 1 Department of Cardiology, The Second Affiliated Hospital of Xinjiang Medical University , Urumqi, China
| | - Bannu Kuken
- 1 Department of Cardiology, The Second Affiliated Hospital of Xinjiang Medical University , Urumqi, China
| | - Hong-Yan Song
- 1 Department of Cardiology, The Second Affiliated Hospital of Xinjiang Medical University , Urumqi, China
| | - Hua Zhong
- 3 Catheterization Laboratory, The Second Affiliated Hospital of Xinjiang Medical University , Urumqi, China
| | - Yun Lu
- 1 Department of Cardiology, The Second Affiliated Hospital of Xinjiang Medical University , Urumqi, China
| | - Shun-Min Liu
- 1 Department of Cardiology, The Second Affiliated Hospital of Xinjiang Medical University , Urumqi, China
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89
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Abstract
T cell depletion can prevent hypertension in experimental animals. What is the nature of T cell activation in hypertension? In this issue of Immunity, Carnevale et al. (2014) implicate PlGF signaling in a reservoir of splenic T cells.
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