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Zamboulis DE, Marr N, Moustafa A, Meeson R, Orriss IR, Thorpe CT. Pathological calcification in canine tendon-derived cells is modulated by extracellular ATP. Vet Res Commun 2024; 48:1533-1543. [PMID: 38381244 PMCID: PMC11147865 DOI: 10.1007/s11259-024-10331-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 02/13/2024] [Indexed: 02/22/2024]
Abstract
Tendon calcification is a commonly associated with degenerative tendinopathy of the Achilles tendons in dogs. It is characterised by the formation of calcific deposits and is refractory to treatment, often re-forming after surgical removal. Little is known about its pathogenesis and therefore the aims of this study were to develop an in vitro model of canine tendon calcification and use this model to investigate mechanisms driving calcification. Cells from the canine Achilles tendon were cultured with different calcifying media to establish which conditions were best able to induce specific, cell-mediated calcification. Once optimum calcification conditions had been established, the effect of ATP treatment on calcification was assessed. Results revealed that 2 mM di-sodium phosphate combined with 2 mM calcium chloride provided the optimum calcifying conditions, increasing calcium deposition and expression of osteogenic-related genes similar to those observed in tendon calcification in vivo. ATP treatment inhibited calcification in a dose-dependent manner, reducing calcium deposition and increasing cell viability, while osteogenic-related genes were no longer upregulated. In conclusion, the in vitro model of canine tendon calcification developed in this study provides the ability to study mechanisms driving tendon calcification, demonstrating that ATP plays a role in modulating tendon calcification that should be explored further in future studies.
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Affiliation(s)
- Danae E Zamboulis
- Department of Comparative Biomedical Sciences, Royal Veterinary College, Camden, London, UK
- Department of Clinical Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Thessaolinki, Greece
| | - Neil Marr
- Department of Comparative Biomedical Sciences, Royal Veterinary College, Camden, London, UK
- Department of Clinical Science and Services, Royal Veterinary College, London, UK
| | - Alaa Moustafa
- Department of Comparative Biomedical Sciences, Royal Veterinary College, Camden, London, UK
- Department of Surgery, Anaesthesiology, and Radiology, Faculty of Veterinary Medicine, Kafr Elshiekh University, Kafr Elshiekh, Egypt
| | - Richard Meeson
- Department of Clinical Science and Services, Royal Veterinary College, London, UK
| | - Isabel R Orriss
- Department of Comparative Biomedical Sciences, Royal Veterinary College, Camden, London, UK
| | - Chavaunne T Thorpe
- Department of Comparative Biomedical Sciences, Royal Veterinary College, Camden, London, UK.
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2
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Carbajal-García A, Reyes-García J, Díaz-Hernández V, Casas-Hernández MF, Flores-Murrieta FJ, Montaño LM. Testosterone Enhances K V Currents and Airway Smooth Muscle Relaxation Induced by ATP and UTP through P2Y 4 Receptors and Adenylyl Cyclase Pathway. Int J Mol Sci 2024; 25:4652. [PMID: 38731872 PMCID: PMC11083821 DOI: 10.3390/ijms25094652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/07/2024] [Accepted: 04/17/2024] [Indexed: 05/13/2024] Open
Abstract
Numerous studies suggest the involvement of adenosine-5'-triphosphate (ATP) and similar nucleotides in the pathophysiology of asthma. Androgens, such as testosterone (TES), are proposed to alleviate asthma symptoms in young men. ATP and uridine-5'-triphosphate (UTP) relax the airway smooth muscle (ASM) via purinergic P2Y2 and P2Y4 receptors and K+ channel opening. We previously demonstrated that TES increased the expression of voltage-dependent K+ (KV) channels in ASM. This study investigates how TES may potentiate ASM relaxation induced by ATP and UTP. Tracheal tissues treated with or without TES (control group) from young male guinea pigs were used. In organ baths, tracheas exposed to TES (40 nM for 48 h) showed enhanced ATP- and UTP-evoked relaxation. Tetraethylammonium, a K+ channel blocker, annulled this effect. Patch-clamp experiments in tracheal myocytes showed that TES also increased ATP- and UTP-induced K+ currents, and this effect was abolished with flutamide (an androgen receptor antagonist). KV channels were involved in this phenomenon, which was demonstrated by inhibition with 4-aminopyridine. RB2 (an antagonist of almost all P2Y receptors except for P2Y2), as well as N-ethylmaleimide and SQ 22,536 (inhibitors of G proteins and adenylyl cyclase, respectively), attenuated the enhancement of the K+ currents induced by TES. Immunofluorescence and immunohistochemistry studies revealed that TES did not modify the expression of P2Y4 receptors or COX-1 and COX-2, while we have demonstrated that this androgen augmented the expression of KV1.2 and KV1.5 channels in ASM. Thus, TES leads to the upregulation of P2Y4 signaling and KV channels in guinea pig ASM, enhancing ATP and UTP relaxation responses, which likely limits the severity of bronchospasm in young males.
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Affiliation(s)
- Abril Carbajal-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (A.C.-G.); (J.R.-G.); (M.F.C.-H.)
| | - Jorge Reyes-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (A.C.-G.); (J.R.-G.); (M.F.C.-H.)
| | - Verónica Díaz-Hernández
- Departamento de Embriología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico;
| | - María F. Casas-Hernández
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (A.C.-G.); (J.R.-G.); (M.F.C.-H.)
| | - Francisco Javier Flores-Murrieta
- Unidad de Investigación en Farmacología, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico;
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Luis M. Montaño
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (A.C.-G.); (J.R.-G.); (M.F.C.-H.)
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3
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Alberto AVP, Ferreira NCDS, Bonavita AGC, Nihei OK, de Farias FP, Bisaggio RDC, de Albuquerque C, Savino W, Coutinho‐Silva R, Persechini PM, Alves LA. Physiologic roles of P2 receptors in leukocytes. J Leukoc Biol 2022; 112:983-1012. [PMID: 35837975 PMCID: PMC9796137 DOI: 10.1002/jlb.2ru0421-226rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/13/2022] [Indexed: 01/01/2023] Open
Abstract
Since their discovery in the 1970s, purinergic receptors have been shown to play key roles in a wide variety of biologic systems and cell types. In the immune system, purinergic receptors participate in innate immunity and in the modulation of the adaptive immune response. In particular, P2 receptors, which respond to extracellular nucleotides, are widely expressed on leukocytes, causing the release of cytokines and chemokines and the formation of inflammatory mediators, and inducing phagocytosis, degranulation, and cell death. The activity of these receptors is regulated by ectonucleotidases-expressed in these same cell types-which regulate the availability of nucleotides in the extracellular environment. In this article, we review the characteristics of the main purinergic receptor subtypes present in the immune system, focusing on the P2 family. In addition, we describe the physiologic roles of the P2 receptors already identified in leukocytes and how they can positively or negatively modulate the development of infectious diseases, inflammation, and pain.
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Affiliation(s)
- Anael Viana Pinto Alberto
- Laboratory of Cellular Communication, Oswaldo Cruz InstituteOswaldo Cruz FoundationRio de JaneiroRJBrazil
| | | | | | - Oscar Kenji Nihei
- Center of Education and LetterState University of the West of ParanáFoz do IguaçuPRBrazil
| | | | - Rodrigo da Cunha Bisaggio
- Laboratory of Cellular Communication, Oswaldo Cruz InstituteOswaldo Cruz FoundationRio de JaneiroRJBrazil,Federal Institute of Education, Science, and Technology of Rio de JaneiroRio de JaneiroRJBrazil
| | | | - Wilson Savino
- Laboratory on Thymus Research, Oswaldo Cruz InstituteOswaldo Cruz FoundationRio de JaneiroRJBrazil,Brazilian National Institute of Science and Technology on NeuroimmunomodulationRio de Janeiro Research Network on NeuroinflammationRio de JaneiroRJBrazil
| | - Robson Coutinho‐Silva
- Laboratory of Immunophysiology, Carlos Chagas Filho Biophysics InstituteFederal University of Rio de JaneiroRio de JaneiroRJBrazil
| | - Pedro Muanis Persechini
- Laboratory of Immunobiophysics, Carlos Chagas Filho Biophysics InstituteFederal University of Rio de JaneiroRio de JaneiroRJBrazil
| | - Luiz Anastacio Alves
- Laboratory of Cellular Communication, Oswaldo Cruz InstituteOswaldo Cruz FoundationRio de JaneiroRJBrazil
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4
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Sladkova EA, Skorkina MY. Changes of the Biophysical Properties of Blood Corpuscles from the Elderly under Mechanical Stress in vitro. Biophysics (Nagoya-shi) 2020. [DOI: 10.1134/s0006350920060196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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5
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Singh N, Driessen AK, McGovern AE, Moe AAK, Farrell MJ, Mazzone SB. Peripheral and central mechanisms of cough hypersensitivity. J Thorac Dis 2020; 12:5179-5193. [PMID: 33145095 PMCID: PMC7578480 DOI: 10.21037/jtd-2020-icc-007] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Chronic cough is a difficult to treat symptom of many respiratory and some non-respiratory diseases, indicating that varied pathologies can underpin the development of chronic cough. However, clinically and experimentally it has been useful to collate these different pathological processes into the single unifying concept of cough hypersensitivity. Cough hypersensitivity syndrome is reflected by troublesome cough often precipitated by levels of stimuli that ordinarily don't cause cough in healthy people, and this appears to be a hallmark feature in many patients with chronic cough. Accordingly, a strong argument has emerged that changes in the excitability and/or normal regulation of the peripheral and central neural circuits responsible for cough are instrumental in establishing cough hypersensitivity and for causing excessive cough in disease. In this review, we explore the current peripheral and central neural mechanisms that are believed to be involved in altered cough sensitivity and present possible links to the mechanism of action of novel therapies that are currently undergoing clinical trials for chronic cough.
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Affiliation(s)
- Nabita Singh
- Department of Medical Imaging and Radiation Sciences, Monash University, Clayton, Australia
| | - Alexandria K. Driessen
- Department of Anatomy and Neuroscience, School of Biomedical Science, The University of Melbourne, Parkville, Australia
| | - Alice E. McGovern
- Department of Anatomy and Neuroscience, School of Biomedical Science, The University of Melbourne, Parkville, Australia
| | - Aung Aung Kywe Moe
- Department of Anatomy and Neuroscience, School of Biomedical Science, The University of Melbourne, Parkville, Australia
| | - Michael J. Farrell
- Department of Medical Imaging and Radiation Sciences, Monash University, Clayton, Australia
- Monash Biomedical Imaging, Monash University, Clayton, Australia
| | - Stuart B. Mazzone
- Department of Anatomy and Neuroscience, School of Biomedical Science, The University of Melbourne, Parkville, Australia
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6
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Vargas-Martínez EM, Gómez-Coronado KS, Espinosa-Luna R, Valdez-Morales EE, Barrios-García T, Barajas-Espinosa A, Ochoa-Cortes F, Montaño LM, Barajas-López C, Guerrero-Alba R. Functional expression of P2X1, P2X4 and P2X7 purinergic receptors in human monocyte-derived macrophages. Eur J Pharmacol 2020; 888:173460. [PMID: 32805257 DOI: 10.1016/j.ejphar.2020.173460] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/20/2020] [Accepted: 07/31/2020] [Indexed: 12/27/2022]
Abstract
This study sought to examine the co-expression of the following purinergic receptor subunits: P2X1, P2X1del, P2X4, and P2X7 and characterize the P2X response in human monocyte-derived macrophages (MDMs). Single-cell RT-PCR shows the presence of P2X1, P2X1del, P2X4, and P2X7 mRNA in 40%, 5%, 20%, and 90% of human MDMs, respectively. Of the studied human MDMs, 25% co-expressed P2X1 and P2X7 mRNA; 5% co-expressed P2X4 and P2X7; and 15% co-expressed P2X1, P2X4, and P2X7 mRNA. In whole-cell patch clamp recordings of human MDMs, rapid application of ATP (0.01 mM) evoked fast current activation and two different desensitization kinetics: 1. a rapid desensitizing current antagonized by PPADS (1 μM), reminiscent of the P2X1 receptor's current; 2. a slow desensitizing current, insensitive to PPADS but potentiated by ivermectin (3 μM), similar to the P2X4 receptor's current. Application of 5 mM ATP induced three current modalities: 1. slow current activation with no desensitization, similar to the P2X7 receptor current, present in 69% of human macrophages and antagonized by A-804598 (0.1 μM); 2. fast current activation and fast desensitization, present in 15% of human MDMs; 3. fast activation current followed by biphasic desensitization, observed in 15% of human MDMs. Both rapid and biphasic desensitization kinetics resemble those observed for the recombinant human P2X1 receptor expressed in oocytes. These data demonstrate, for the first time, the co-expression of P2X1, P2X4, and P2X7 transcripts and confirm the presence of functional P2X1, P2X4, and P2X7 receptors in human macrophages.
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Affiliation(s)
- Eydie M Vargas-Martínez
- División de Biología Molecular, Instituto Potosino Investigación Científica y Tecnológica, San Luis Potosí, SLP, México
| | - Karen S Gómez-Coronado
- División de Biología Molecular, Instituto Potosino Investigación Científica y Tecnológica, San Luis Potosí, SLP, México
| | - Rosa Espinosa-Luna
- División de Biología Molecular, Instituto Potosino Investigación Científica y Tecnológica, San Luis Potosí, SLP, México
| | - Eduardo E Valdez-Morales
- Catedras CONACYT, Departamento de Medicina, Centro de Ciencias de la Salud, Universidad Autónoma de Aguascalientes, Aguascalientes, México
| | - Tonatiuh Barrios-García
- Departamento de Fisiología y Farmacología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, México
| | - Alma Barajas-Espinosa
- Licenciatura en Enfermería, Escuela Superior de Huejutla, Universidad Autónoma del Estado de Hidalgo, Huejutla de Reyes, Hidalgo, México
| | - Fernando Ochoa-Cortes
- Licenciatura en Enfermería, Escuela Superior de Huejutla, Universidad Autónoma del Estado de Hidalgo, Huejutla de Reyes, Hidalgo, México
| | - Luis M Montaño
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, México
| | - Carlos Barajas-López
- División de Biología Molecular, Instituto Potosino Investigación Científica y Tecnológica, San Luis Potosí, SLP, México
| | - Raquel Guerrero-Alba
- Departamento de Fisiología y Farmacología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, México.
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7
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Shen D, Shen X, Schwarz W, Grygorczyk R, Wang L. P2Y 13 and P2X 7 receptors modulate mechanically induced adenosine triphosphate release from mast cells. Exp Dermatol 2020; 29:499-508. [PMID: 32155290 DOI: 10.1111/exd.14093] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/25/2020] [Accepted: 03/03/2020] [Indexed: 12/15/2022]
Abstract
Subcutaneous mast cells (MCs) are vulnerable to mechanical stimulation from external environment. Thus, MCs immune function could be modulated by their mechanosensitivity. This property has been identified as the trigger mechanism of needling acupuncture, a traditional oriental therapy. Previously we have demonstrated the release of adenosine triphosphate (ATP), a stress-responsive signalling molecule, from mechanical-perturbed MCs. The current work explores its underlying mechanisms. We noticed that propagation of intracellular free Ca2+ occurred among HMC-1 cells in response to 50% hypotonic shock. Additionally, amplifying cascade of ATP-induced ATP release was observed in RBL-2H3 cells stimulated by medium displacement, which could be mimicked by exogenous ATP (exoATP). Secondary ATP liberation induced by low level (50 nmol/L) of exoATP was reduced by inhibiting ecto-ATPase-dependent ADP production with ARL67156, or blocking P2 receptors with suramin or PPADS, or with specific P2Y13 receptor antagonist MRS2211, or siRNA. Secondary ATP release induced by higher dose (200 μmol/L) of exoATP, sufficient to stimulate P2X7 receptor, was attenuated by suramin, PPADS or specific P2X7 receptor antagonist BBG, or siRNA. Finally, RT-PCR confirmed mRNA expression of P2Y13 and P2X7 in RBL-2H3 cells. Additionally, such secondary ATP release was attenuated by DPCPX, specific antagonist of adenosine A1 receptor, but not by MRS2179, specific inhibitor of P2Y1 receptor. In summary, mechanosensitive ATP release from MCs is facilitated by paracrine/autocrine stimulation of P2Y13 and P2X7 receptors. This multi-receptor combination could mediate transmission of information from a local site to distal areas, enabling communication with multiple surrounding cells to coordinate and synchronize their function.
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Affiliation(s)
- Dan Shen
- Acupuncture and Moxibustion College, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xueyong Shen
- Acupuncture and Moxibustion College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai Research Center for Acupuncture and Meridians, Shanghai, China
| | - Wolfgang Schwarz
- Institute for Biophysics, Goethe-University Frankfurt, Frankfurt a.M., Germany
| | - Ryszard Grygorczyk
- Centre de Recherche, Centre Hospitalier de I'Université de Montréal (CRCHUM), Montréal, QC, Canada.,Department of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Lina Wang
- Acupuncture and Moxibustion College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai Key Laboratory of Acupuncture Mechanism and Acupoint Function (14DZ2260500), Fudan University, Shanghai, China
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8
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Freeman TL, Swartz TH. Purinergic Receptors: Elucidating the Role of these Immune Mediators in HIV-1 Fusion. Viruses 2020; 12:E290. [PMID: 32155980 PMCID: PMC7150916 DOI: 10.3390/v12030290] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 02/07/2023] Open
Abstract
Purinergic receptors are inflammatory mediators activated by extracellular nucleotides released by dying or injured cells. Several studies have described an important role for these receptors in HIV-1 entry, particularly regarding their activity on HIV-1 viral membrane fusion. Several reports identify purinergic receptor antagonists that inhibit HIV-1 membrane fusion; these drugs are suspected to act through antagonizing Env-chemokine receptor interactions. They also appear to abrogate activity of downstream mediators that potentiate activation of the NLRP3 inflammasome pathway. Here we review the literature on purinergic receptors, the drugs that inhibit their function, and the evidence implicating these receptors in HIV-1 entry.
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Affiliation(s)
| | - Talia H. Swartz
- Division of Infectious Diseases, Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
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9
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Dănilă MD, Piollet M, Aburel OM, Angoulvant D, Lefort C, Chadet S, Roger S, Muntean MD, Ivanes F. Modulation of P2Y11-related purinergic signaling in inflammation and cardio-metabolic diseases. Eur J Pharmacol 2020; 876:173060. [PMID: 32142768 DOI: 10.1016/j.ejphar.2020.173060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 02/22/2020] [Accepted: 02/28/2020] [Indexed: 12/11/2022]
Abstract
Chronic inflammation is the hallmark of cardiovascular pathologies with a major role in both disease progression and occurrence of long-term complications. The massive release of ATP during the inflammatory process activates various purinergic receptors, including P2Y11. This receptor is less studied but ubiquitously expressed in all cells relevant for cardiovascular pathology: cardiomyocytes, fibroblasts, endothelial and immune cells. While several studies suggested a potential pro-inflammatory role for P2Y11 receptors, recent literature data are supportive of an anti-inflammatory profile characterized by the immunosuppression of dendritic cells, inhibition of fibroblast proliferation and of cytokines and ATP secretion. Moreover, modulation of its activity appears to mediate the positive inotropic effect of ATP and mitigate endothelial dysfunction, thus rendering this receptor a promising therapeutic target in the cardiovascular disease armamentarium. The aim of the present review is to summarize the current available knowledge on P2Y11-related purinergic signaling in the setting of inflammation and cardio-metabolic diseases.
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Affiliation(s)
- Maria-Daniela Dănilă
- Department of Functional Sciences - Pathophysiology, "Victor Babeș" University of Medicine and Pharmacy Timișoara, Romania
| | - Marie Piollet
- EA4245 Transplantation Immunity Inflammation, Faculty of Medicine - Tours University& Loire Valley Cardiovascular Collaboration, Tours, F37000, France
| | - Oana-Maria Aburel
- Department of Functional Sciences - Pathophysiology, "Victor Babeș" University of Medicine and Pharmacy Timișoara, Romania; Center for Translational Research and Systems Medicine, "Victor Babeș" University of Medicine and Pharmacy Timișoara, Romania
| | - Denis Angoulvant
- EA4245 Transplantation Immunity Inflammation, Faculty of Medicine - Tours University& Loire Valley Cardiovascular Collaboration, Tours, F37000, France; Cardiology Department, Trousseau Hospital, CHRU de Tours, F37000, Tours, France
| | - Claudie Lefort
- EA4245 Transplantation Immunity Inflammation, Faculty of Medicine - Tours University& Loire Valley Cardiovascular Collaboration, Tours, F37000, France
| | - Stéphanie Chadet
- EA4245 Transplantation Immunity Inflammation, Faculty of Medicine - Tours University& Loire Valley Cardiovascular Collaboration, Tours, F37000, France
| | - Sebastien Roger
- EA4245 Transplantation Immunity Inflammation, Faculty of Medicine - Tours University& Loire Valley Cardiovascular Collaboration, Tours, F37000, France
| | - Mirela-Danina Muntean
- Department of Functional Sciences - Pathophysiology, "Victor Babeș" University of Medicine and Pharmacy Timișoara, Romania; Center for Translational Research and Systems Medicine, "Victor Babeș" University of Medicine and Pharmacy Timișoara, Romania.
| | - Fabrice Ivanes
- EA4245 Transplantation Immunity Inflammation, Faculty of Medicine - Tours University& Loire Valley Cardiovascular Collaboration, Tours, F37000, France; Cardiology Department, Trousseau Hospital, CHRU de Tours, F37000, Tours, France
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10
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Sueyoshi K, Ledderose C, Shen Y, Lee AH, Shapiro NI, Junger WG. Lipopolysaccharide suppresses T cells by generating extracellular ATP that impairs their mitochondrial function via P2Y11 receptors. J Biol Chem 2019; 294:6283-6293. [PMID: 30787105 DOI: 10.1074/jbc.ra118.007188] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/10/2019] [Indexed: 12/20/2022] Open
Abstract
T cell suppression contributes to immune dysfunction in sepsis. However, the underlying mechanisms are not well-defined. Here, we show that exposure of human peripheral blood mononuclear cells to bacterial lipopolysaccharide (LPS) can rapidly and dose-dependently suppress interleukin-2 (IL-2) production and T cell proliferation. We also report that these effects depend on monocytes. LPS did not prevent the interaction of monocytes with T cells, nor did it induce programmed cell death protein 1 (PD-1) signaling that causes T cell suppression. Instead, we found that LPS stimulation of monocytes led to the accumulation of extracellular ATP that impaired mitochondrial function, cell migration, IL-2 production, and T cell proliferation. Mechanistically, LPS-induced ATP accumulation exerted these suppressive effects on T cells by activating the purinergic receptor P2Y11 on the cell surface of T cells. T cell functions could be partially restored by enzymatic removal of extracellular ATP or pharmacological blocking of P2Y11 receptors. Plasma samples obtained from sepsis patients had similar suppressive effects on T cells from healthy subjects. Our findings suggest that LPS and ATP accumulation in the circulation of sepsis patients suppresses T cells by promoting inappropriate P2Y11 receptor stimulation that impairs T cell metabolism and functions. We conclude that inhibition of LPS-induced ATP release, removal of excessive extracellular ATP, or P2Y11 receptor antagonists may be potential therapeutic strategies to prevent T cell suppression and restore host immune function in sepsis.
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Affiliation(s)
| | | | | | | | - Nathan I Shapiro
- Emergency Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215 and
| | - Wolfgang G Junger
- From the Departments of Surgery and .,the Ludwig Boltzmann Institute for Traumatology, Vienna A-1200, Austria
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11
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Chávez J, Vargas MH, Martínez-Zúñiga J, Falfán-Valencia R, Ambrocio-Ortiz E, Carbajal V, Sandoval-Roldán R. Allergic sensitization increases the amount of extracellular ATP hydrolyzed by guinea pig leukocytes. Purinergic Signal 2019; 15:69-76. [PMID: 30637575 DOI: 10.1007/s11302-019-09644-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 01/04/2019] [Indexed: 02/07/2023] Open
Abstract
Increased levels of ATP have been found in the bronchoalveolar lavage of patients with asthma, and subjects with this disease, but not healthy subjects, develop bronchospasm after nebulization with ATP. Because the main mechanism for controlling the noxious effects of extracellular ATP is its enzymatic hydrolysis, we hypothesized that allergic sensitization is accompanied by a decreased functioning of such hydrolysis. In the present study, peripheral blood leukocytes from sensitized and non-sensitized guinea pigs were used for determining the extracellular metabolism (as assessed by inorganic phosphate production) of ATP, ADP, AMP, or adenosine, and for detecting possible changes in the expression (qPCR and Western blot) of major ectonucleotidases (NTPDase1, NTPDase3, and NPP1) and purinoceptors (P2X1, P2X7, P2Y4, and P2Y6). Contrary to our hypothesis, we found that leukocytes from allergic animals produced higher amounts of inorganic phosphate after stimulation with ATP and ADP, as compared with leukocytes from non-sensitized animals. Although at first glance, this result suggested that sensitization caused higher efficiency of ectonucleotidases, their mRNA and protein expressions were unaffected. On the other hand, after sensitization, we found a significant increase in the protein expression of P2X7 and P2Y4, two purinoceptors known to be responsible for ATP release after activation. We concluded that allergic sensitization increased the amount of ATP hydrolyzed by ectonucleotidases, the latter probably not due to the enhanced efficiency of its enzymatic breakdown, but rather due to an increased release of endogenous ATP or other nucleotides, partly mediated by enhanced expression or P2X7 and P2Y4 receptors.
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Affiliation(s)
- Jaime Chávez
- Departamento de Investigación en Hiperreactividad Bronquial, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, 14080, Mexico City, Mexico.
| | - Mario H Vargas
- Departamento de Investigación en Hiperreactividad Bronquial, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, 14080, Mexico City, Mexico
| | - Jesús Martínez-Zúñiga
- Departamento de Investigación en Hiperreactividad Bronquial, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, 14080, Mexico City, Mexico
| | - Ramcés Falfán-Valencia
- Laboratorio HLA, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, 14080, Mexico City, Mexico
| | - Enrique Ambrocio-Ortiz
- Laboratorio HLA, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, 14080, Mexico City, Mexico
| | - Verónica Carbajal
- Departamento de Investigación en Hiperreactividad Bronquial, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, 14080, Mexico City, Mexico
| | - Rosa Sandoval-Roldán
- Departamento de Investigación en Hiperreactividad Bronquial, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Calzada de Tlalpan 4502, 14080, Mexico City, Mexico
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12
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Xu P, Feng X, Luan H, Wang J, Ge R, Li Z, Bian J. Current knowledge on the nucleotide agonists for the P2Y2 receptor. Bioorg Med Chem 2017; 26:366-375. [PMID: 29254895 DOI: 10.1016/j.bmc.2017.11.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 11/27/2017] [Accepted: 11/29/2017] [Indexed: 12/20/2022]
Abstract
P2Y receptors are G-protein-coupled receptors (GPCRs) for extracellular nucleotides. There are eight mammalian P2Y receptor subtypes (P2Y1, P2Y2, P2Y4, P2Y6, P2Y11, P2Y12, P2Y13, and P2Y14). P2Y2 receptors are widely expressed and play important roles in multiple functionalities. Diquafosol tetrasodium, known as INS365, which was the first P2Y2 receptor agonists that had been approved in April 2010 and launched in Japan by Santen Pharmaceuticals. Besides, a series of similar agonists for the P2Y2 receptor are undergoing development to cure different diseases related to the P2Y2 receptor. This article illustrated the structure and functions of the P2Y2 receptor and focused on several kinds of agonists about their molecular structures, research progress and chemical synthesis methods. Last but not the least, we summarized the structures-activity relationship (SAR) of agonists for the P2Y2 receptor and expected more efficient agonists for the P2Y2 receptor.
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Affiliation(s)
- Pengfei Xu
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China; Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Xi Feng
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China; Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Hongyu Luan
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China; Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Jubo Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China; Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Raoling Ge
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China; Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Zhiyu Li
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China.
| | - Jinlei Bian
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China.
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13
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Komalavilas P, Luo W, Guth CM, Jolayemi O, Bartelson RI, Cheung-Flynn J, Brophy CM. Vascular surgical stretch injury leads to activation of P2X7 receptors and impaired endothelial function. PLoS One 2017; 12:e0188069. [PMID: 29136654 PMCID: PMC5685620 DOI: 10.1371/journal.pone.0188069] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 10/31/2017] [Indexed: 12/17/2022] Open
Abstract
A viable vascular endothelial layer prevents vasomotor dysfunction, thrombosis, inflammation, and intimal hyperplasia. Injury to the endothelium occurs during harvest and “back table” preparation of human saphenous vein prior to implantation as an arterial bypass conduit. A subfailure overstretch model of rat aorta was used to show that subfailure stretch injury of vascular tissue leads to impaired endothelial-dependent relaxation. Stretch-induced impaired relaxation was mitigated by treatment with purinergic P2X7 receptor (P2X7R) inhibitors, brilliant blue FCF (FCF) and A740003, or apyrase, an enzyme that catalyzes the hydrolysis of ATP. Alternatively, treatment of rat aorta with exogenous ATP or 2’(3’)-O-(4-Benzoyl benzoyl)-ATP (BzATP) also impaired endothelial-dependent relaxation. Treatment of human saphenous vein endothelial cells (HSVEC) with exogenous ATP led to reduced nitric oxide production which was associated with increased phosphorylation of the stress activated protein kinase, p38 MAPK. ATP- stimulated p38 MAPK phosphorylation of HSVEC was inhibited by FCF and SB203580. Moreover, ATP inhibition of nitric oxide production in HSVEC was prevented by FCF, SB203580, L-arginine supplementation and arginase inhibition. Finally, L-arginine supplementation and arginase inhibition restored endothelial dependent relaxation after stretch injury of rat aorta. These results suggest that vascular stretch injury leads to ATP release, activation of P2X7R and p38 MAPK resulting in endothelial dysfunction due to arginase activation. Endothelial function can be restored in both ATP treated HSVEC and intact stretch injured rat aorta by P2X7 receptor inhibition with FCF or L-arginine supplementation, implicating straightforward therapeutic options for treatment of surgical vascular injury.
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Affiliation(s)
- Padmini Komalavilas
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
- VA Tennessee Valley Healthcare System, Nashville, TN, United States of America
- * E-mail:
| | - Weifeng Luo
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
| | - Christy M. Guth
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
| | - Olukemi Jolayemi
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
| | - Rachel I. Bartelson
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
| | - Joyce Cheung-Flynn
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
| | - Colleen M. Brophy
- Vanderbilt University Medical Center, Department of Surgery, Nashville, TN, United States of America
- VA Tennessee Valley Healthcare System, Nashville, TN, United States of America
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14
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Limiting Injury During Saphenous Vein Graft Preparation For Coronary Arterial Bypass Prevents Metabolic Decompensation. Sci Rep 2017; 7:14179. [PMID: 29079734 PMCID: PMC5660200 DOI: 10.1038/s41598-017-13819-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 10/02/2017] [Indexed: 02/01/2023] Open
Abstract
Standard harvest and preparation of human saphenous vein (HSV) for autologous coronary and peripheral arterial bypass procedures is associated with injury and increased oxidative stress that negatively affect graft performance. In this study we investigated the global metabolomic profiles of HSV before (unprepared; UP) and after standard vein graft preparation (AP). AP-HSV showed impaired vasomotor function that was associated with increased oxidative stress, phospholipid hydrolysis and energy depletion that are characteristic of mechanical and chemical injury. A porcine model (PSV) was utilized to validate these metabolomic changes in HSV and to determine the efficacy of an improved preparation technique (OP) using pressure-regulated distension, a non-toxic vein marker, and graft storage in buffered PlasmaLyte solution in limiting metabolic decompensation due to graft preparation. Deficits in vasomotor function and metabolic signature observed in AP-PSV could be largely mitigated with the OP procedure. These findings suggest that simple strategies aimed at reducing injury during graft harvest and preparation represents a straightforward and viable strategy to preserve conduit function and possibly improve graft patency.
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15
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Orriss IR, Guneri D, Hajjawi MOR, Shaw K, Patel JJ, Arnett TR. Activation of the P2Y 2 receptor regulates bone cell function by enhancing ATP release. J Endocrinol 2017; 233:341-356. [PMID: 28420708 DOI: 10.1530/joe-17-0042] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 04/18/2017] [Indexed: 02/02/2023]
Abstract
Bone cells constitutively release ATP into the extracellular environment where it acts locally via P2 receptors to regulate bone cell function. Whilst P2Y2 receptor stimulation regulates bone mineralisation, the functional effects of this receptor in osteoclasts remain unknown. This investigation used the P2Y2 receptor knockout (P2Y2R-/- ) mouse model to investigate the role of this receptor in bone. MicroCT analysis of P2Y2R-/- mice demonstrated age-related increases in trabecular bone volume (≤48%), number (≤30%) and thickness (≤17%). In vitro P2Y2R-/- osteoblasts displayed a 3-fold increase in bone formation and alkaline phosphatase activity, whilst P2Y2R-/- osteoclasts exhibited a 65% reduction in resorptive activity. Serum cross-linked C-telopeptide levels (CTX, resorption marker) were also decreased (≤35%). The resorption defect in P2Y2R-/- osteoclasts was rescued by the addition of exogenous ATP, suggesting that an ATP deficit could be a key factor in the reduced function of these cells. In agreement, we found that basal ATP release was reduced up to 53% in P2Y2R-/- osteoclasts. The P2Y2 receptor agonists, UTP and 2-thioUTP, increased osteoclast activity and ATP release in wild-type but not in P2Y2R-/- cells. This indicates that the P2Y2 receptor may regulate osteoclast function indirectly by promoting ATP release. UTP and 2-thioUTP also stimulate ATP release from osteoblasts suggesting that the P2Y2 receptor exerts a similar function in these cells. Taken together, our findings are consistent with the notion that the primary action of P2Y2 receptor signalling in bone is to regulate extracellular ATP levels.
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Affiliation(s)
- Isabel R Orriss
- Department of Comparative Biomedical SciencesRoyal Veterinary College, London, UK
| | - Dilek Guneri
- Department of Comparative Biomedical SciencesRoyal Veterinary College, London, UK
| | - Mark O R Hajjawi
- Department of Cell & Developmental BiologyUniversity College London, London, UK
| | - Kristy Shaw
- Department of Comparative Biomedical SciencesRoyal Veterinary College, London, UK
| | - Jessal J Patel
- Department of Comparative Biomedical SciencesRoyal Veterinary College, London, UK
| | - Timothy R Arnett
- Department of Cell & Developmental BiologyUniversity College London, London, UK
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16
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Burnstock G. Purinergic Signaling in the Cardiovascular System. Circ Res 2017; 120:207-228. [PMID: 28057794 DOI: 10.1161/circresaha.116.309726] [Citation(s) in RCA: 271] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 11/21/2016] [Accepted: 11/23/2016] [Indexed: 02/07/2023]
Abstract
There is nervous control of the heart by ATP as a cotransmitter in sympathetic, parasympathetic, and sensory-motor nerves, as well as in intracardiac neurons. Centers in the brain control heart activities and vagal cardiovascular reflexes involve purines. Adenine nucleotides and nucleosides act on purinoceptors on cardiomyocytes, AV and SA nodes, cardiac fibroblasts, and coronary blood vessels. Vascular tone is controlled by a dual mechanism. ATP, released from perivascular sympathetic nerves, causes vasoconstriction largely via P2X1 receptors. Endothelial cells release ATP in response to changes in blood flow (via shear stress) or hypoxia, to act on P2 receptors on endothelial cells to produce nitric oxide, endothelium-derived hyperpolarizing factor, or prostaglandins to cause vasodilation. ATP is also released from sensory-motor nerves during antidromic reflex activity, to produce relaxation of some blood vessels. Purinergic signaling is involved in the physiology of erythrocytes, platelets, and leukocytes. ATP is released from erythrocytes and platelets, and purinoceptors and ectonucleotidases are expressed by these cells. P1, P2Y1, P2Y12, and P2X1 receptors are expressed on platelets, which mediate platelet aggregation and shape change. Long-term (trophic) actions of purine and pyrimidine nucleosides and nucleotides promote migration and proliferation of vascular smooth muscle and endothelial cells via P1 and P2Y receptors during angiogenesis, vessel remodeling during restenosis after angioplasty and atherosclerosis. The involvement of purinergic signaling in cardiovascular pathophysiology and its therapeutic potential are discussed, including heart failure, infarction, arrhythmias, syncope, cardiomyopathy, angina, heart transplantation and coronary bypass grafts, coronary artery disease, diabetic cardiomyopathy, hypertension, ischemia, thrombosis, diabetes mellitus, and migraine.
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Affiliation(s)
- Geoffrey Burnstock
- From the Autonomic Neuroscience Institute, Royal Free and University College Medical School, London, United Kingdom.
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17
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López-López C, Jaramillo-Polanco J, Portales-Pérez DP, Gómez-Coronado KS, Rodríguez-Meléndez JG, Cortés-García JD, Espinosa-Luna R, Montaño LM, Barajas-López C. Two P2X1 receptor transcripts able to form functional channels are present in most human monocytes. Eur J Pharmacol 2016; 793:82-88. [PMID: 27823931 DOI: 10.1016/j.ejphar.2016.10.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 10/18/2016] [Accepted: 10/27/2016] [Indexed: 12/24/2022]
Abstract
To characterize the presence and general properties of P2X1 receptors in single human monocytes we used RT-PCR, flow cytometry, and the patch-clamp and the two-electrode voltage-clamp techniques. Most human monocytes expressed the canonical P2X1 (90%) and its splicing variant P2X1del (88%) mRNAs. P2X1 receptor immunoreactivity was also observed in 70% of these cells. Currents mediated by P2X1 (EC50=1.9±0.8µm) and P2X1del (EC50 >1000µm) channels, expressed in Xenopus leavis oocytes, have different ATP sensitivity and kinetics. Both currents mediated by P2X1 and P2X1del channels kept increasing during the continuous presence of high ATP concentrations. Currents mediated by the native P2X1 receptors in human monocytes showed an EC50=6.3±0.2µm. Currents have kinetics that resemble those observed for P2X1 and P2X1del receptors in oocytes. Our study is the first to demonstrate the expression of P2X1 transcript and its splicing variant P2X1del in most human monocytes. We also, for the first time, described functional homomeric P2X1del channels and demonstrated that currents mediated by P2X1 or P2X1del receptors, during heterologous expression, increased in amplitude when activated with high ATP concentrations in a similar fashion to those channels that increase their conductance under similar conditions, such as P2X7, P2X2, and P2X4 channels.
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Affiliation(s)
- Cintya López-López
- Instituto Potosino Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Col. Lomas 4ª Sección, CP 78216, San Luis Potosí, México
| | - Josue Jaramillo-Polanco
- Instituto Potosino Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Col. Lomas 4ª Sección, CP 78216, San Luis Potosí, México
| | | | - Karen S Gómez-Coronado
- Instituto Potosino Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Col. Lomas 4ª Sección, CP 78216, San Luis Potosí, México
| | - Jessica G Rodríguez-Meléndez
- Instituto Potosino Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Col. Lomas 4ª Sección, CP 78216, San Luis Potosí, México
| | - Juan D Cortés-García
- Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, SLP, México
| | - Rosa Espinosa-Luna
- Instituto Potosino Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Col. Lomas 4ª Sección, CP 78216, San Luis Potosí, México
| | - Luis M Montaño
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, México DF, México
| | - Carlos Barajas-López
- Instituto Potosino Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Col. Lomas 4ª Sección, CP 78216, San Luis Potosí, México.
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