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Wang L, Garg P, Chan KY, Yuan TZ, Lujan Hernandez AG, Han Z, Peterson SM, Tuscano E, Safavi C, Kwan E, Villalta M, Mathur M, Lai J, Axelrod F, Souders CA, Emery C, Sato AK. Discovery of a potent, selective, and tumor-suppressing antibody antagonist of adenosine A2A receptor. PLoS One 2024; 19:e0301223. [PMID: 38837964 PMCID: PMC11152298 DOI: 10.1371/journal.pone.0301223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 03/12/2024] [Indexed: 06/07/2024] Open
Abstract
New immune checkpoints are emerging in a bid to improve response rates to immunotherapeutic drugs. The adenosine A2A receptor (A2AR) has been proposed as a target for immunotherapeutic development due to its participation in immunosuppression of the tumor microenvironment. Blockade of A2AR could restore tumor immunity and, consequently, improve patient outcomes. Here, we describe the discovery of a potent, selective, and tumor-suppressing antibody antagonist of human A2AR (hA2AR) by phage display. We constructed and screened four single-chain variable fragment (scFv) libraries-two synthetic and two immunized-against hA2AR and antagonist-stabilized hA2AR. After biopanning and ELISA screening, scFv hits were reformatted to human IgG and triaged in a series of cellular binding and functional assays to identify a lead candidate. Lead candidate TB206-001 displayed nanomolar binding of hA2AR-overexpressing HEK293 cells; cross-reactivity with mouse and cynomolgus A2AR but not human A1, A2B, or A3 receptors; functional antagonism of hA2AR in hA2AR-overexpressing HEK293 cells and peripheral blood mononuclear cells (PBMCs); and tumor-suppressing activity in colon tumor-bearing HuCD34-NCG mice. Given its therapeutic properties, TB206-001 is a good candidate for incorporation into next-generation bispecific immunotherapeutics.
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Affiliation(s)
- Linya Wang
- Twist Bioscience, San Francisco, California, United States of America
| | - Pankaj Garg
- Gilead, Foster City, California, United States of America
| | - Kara Y. Chan
- Slingshot, Los Angeles, California, United States of America
| | - Tom Z. Yuan
- Twist Bioscience, San Francisco, California, United States of America
| | | | - Zhen Han
- Twist Bioscience, San Francisco, California, United States of America
| | - Sean M. Peterson
- Nurix Therapeutics, San Francisco, California, United States of America
| | - Emily Tuscano
- Sartorius, Fremont, California, United States of America
| | - Crystal Safavi
- Twist Bioscience, San Francisco, California, United States of America
| | - Eric Kwan
- Twist Bioscience, San Francisco, California, United States of America
| | - Mouna Villalta
- Twist Bioscience, San Francisco, California, United States of America
| | - Melina Mathur
- Twist Bioscience, San Francisco, California, United States of America
| | - Joyce Lai
- Twist Bioscience, San Francisco, California, United States of America
| | - Fumiko Axelrod
- Twist Bioscience, San Francisco, California, United States of America
| | - Colby A. Souders
- Twist Bioscience, San Francisco, California, United States of America
| | - Chloe Emery
- Twist Bioscience, San Francisco, California, United States of America
| | - Aaron K. Sato
- Twist Bioscience, San Francisco, California, United States of America
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Etzion O, Bareket-Samish A, Yardeni D, Fishman P. Namodenoson at the Crossroad of Metabolic Dysfunction-Associated Steatohepatitis and Hepatocellular Carcinoma. Biomedicines 2024; 12:848. [PMID: 38672201 PMCID: PMC11047856 DOI: 10.3390/biomedicines12040848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Namodenoson (CF102) is a small, orally available, anti-inflammatory, and anti-cancer drug candidate currently in phase 2B trial for the treatment of metabolic dysfunction-associated steatohepatitis (MASH; formerly known as non-alcoholic steatohepatitis (NASH)) and in phase 3 pivotal clinical trial for the treatment of hepatocellular carcinoma (HCC). In both MASH and HCC, the mechanism-of-action of namodenoson involves targeting the A3 adenosine receptor (A3AR), resulting in deregulation of downstream signaling pathways and leading to inhibition of inflammatory cytokines (TNF-α, IL-1, IL-6, and IL-8) and stimulation of positive cytokines (G-CSF and adiponectin). Subsequently, inhibition of liver inflammation, steatosis, and fibrosis were documented in MASH experimental models, and inhibition of HCC growth was observed in vitro, in vivo, and in clinical studies. This review discusses the evidence related to the multifaceted mechanism of action of namodenoson, and how this mechanism is reflected in the available clinical data in MASH and HCC.
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Affiliation(s)
- Ohad Etzion
- Department of Gastroenterology and Liver Diseases, Sorkoa University Medical Center, Beer Sheva 84101, Israel; (O.E.); (D.Y.)
| | | | - David Yardeni
- Department of Gastroenterology and Liver Diseases, Sorkoa University Medical Center, Beer Sheva 84101, Israel; (O.E.); (D.Y.)
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Zhang H, Liu Y, Liu J, Chen J, Wang J, Hua H, Jiang Y. cAMP-PKA/EPAC signaling and cancer: the interplay in tumor microenvironment. J Hematol Oncol 2024; 17:5. [PMID: 38233872 PMCID: PMC10792844 DOI: 10.1186/s13045-024-01524-x] [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: 11/16/2023] [Accepted: 01/02/2024] [Indexed: 01/19/2024] Open
Abstract
Cancer is a complex disease resulting from abnormal cell growth that is induced by a number of genetic and environmental factors. The tumor microenvironment (TME), which involves extracellular matrix, cancer-associated fibroblasts (CAF), tumor-infiltrating immune cells and angiogenesis, plays a critical role in tumor progression. Cyclic adenosine monophosphate (cAMP) is a second messenger that has pleiotropic effects on the TME. The downstream effectors of cAMP include cAMP-dependent protein kinase (PKA), exchange protein activated by cAMP (EPAC) and ion channels. While cAMP can activate PKA or EPAC and promote cancer cell growth, it can also inhibit cell proliferation and survival in context- and cancer type-dependent manner. Tumor-associated stromal cells, such as CAF and immune cells, can release cytokines and growth factors that either stimulate or inhibit cAMP production within the TME. Recent studies have shown that targeting cAMP signaling in the TME has therapeutic benefits in cancer. Small-molecule agents that inhibit adenylate cyclase and PKA have been shown to inhibit tumor growth. In addition, cAMP-elevating agents, such as forskolin, can not only induce cancer cell death, but also directly inhibit cell proliferation in some cancer types. In this review, we summarize current understanding of cAMP signaling in cancer biology and immunology and discuss the basis for its context-dependent dual role in oncogenesis. Understanding the precise mechanisms by which cAMP and the TME interact in cancer will be critical for the development of effective therapies. Future studies aimed at investigating the cAMP-cancer axis and its regulation in the TME may provide new insights into the underlying mechanisms of tumorigenesis and lead to the development of novel therapeutic strategies.
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Affiliation(s)
- Hongying Zhang
- Cancer Center, Laboratory of Oncogene, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yongliang Liu
- Cancer Center, Laboratory of Oncogene, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jieya Liu
- Cancer Center, Laboratory of Oncogene, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jinzhu Chen
- Cancer Center, Laboratory of Oncogene, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jiao Wang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Hui Hua
- Laboratory of Stem Cell Biology, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Yangfu Jiang
- Cancer Center, Laboratory of Oncogene, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Vincenzi F, Pasquini S, Contri C, Cappello M, Nigro M, Travagli A, Merighi S, Gessi S, Borea PA, Varani K. Pharmacology of Adenosine Receptors: Recent Advancements. Biomolecules 2023; 13:1387. [PMID: 37759787 PMCID: PMC10527030 DOI: 10.3390/biom13091387] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/05/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Adenosine receptors (ARs) are widely acknowledged pharmacological targets yet are still underutilized in clinical practice. Their ubiquitous distribution in almost all cells and tissues of the body makes them, on the one hand, excellent candidates for numerous diseases, and on the other hand, intrinsically challenging to exploit selectively and in a site-specific manner. This review endeavors to comprehensively depict the substantial advancements witnessed in recent years concerning the development of drugs that modulate ARs. Through preclinical and clinical research, it has become evident that the modulation of ARs holds promise for the treatment of numerous diseases, including central nervous system disorders, cardiovascular and metabolic conditions, inflammatory and autoimmune diseases, and cancer. The latest studies discussed herein shed light on novel mechanisms through which ARs exert control over pathophysiological states. They also introduce new ligands and innovative strategies for receptor activation, presenting compelling evidence of efficacy along with the implicated signaling pathways. Collectively, these emerging insights underscore a promising trajectory toward harnessing the therapeutic potential of these multifaceted targets.
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Affiliation(s)
- Fabrizio Vincenzi
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (C.C.); (M.C.); (M.N.); (A.T.); (S.M.); (S.G.); (K.V.)
| | - Silvia Pasquini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44121 Ferrara, Italy;
| | - Chiara Contri
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (C.C.); (M.C.); (M.N.); (A.T.); (S.M.); (S.G.); (K.V.)
| | - Martina Cappello
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (C.C.); (M.C.); (M.N.); (A.T.); (S.M.); (S.G.); (K.V.)
| | - Manuela Nigro
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (C.C.); (M.C.); (M.N.); (A.T.); (S.M.); (S.G.); (K.V.)
| | - Alessia Travagli
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (C.C.); (M.C.); (M.N.); (A.T.); (S.M.); (S.G.); (K.V.)
| | - Stefania Merighi
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (C.C.); (M.C.); (M.N.); (A.T.); (S.M.); (S.G.); (K.V.)
| | - Stefania Gessi
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (C.C.); (M.C.); (M.N.); (A.T.); (S.M.); (S.G.); (K.V.)
| | | | - Katia Varani
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (C.C.); (M.C.); (M.N.); (A.T.); (S.M.); (S.G.); (K.V.)
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Ye H, Zhao J, Xu X, Zhang D, Shen H, Wang S. Role of adenosine A2a receptor in cancers and autoimmune diseases. Immun Inflamm Dis 2023; 11:e826. [PMID: 37102661 PMCID: PMC10091380 DOI: 10.1002/iid3.826] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 02/28/2023] [Accepted: 03/13/2023] [Indexed: 04/28/2023] Open
Abstract
Adenosine receptors are P1 class of purinergic receptors that belong to G protein-coupled receptors. There are 4 subtypes of adenosine receptors, namely A1, A2A, A2B, and A3. A2AR has a high affinity for the ligand adenosine. Under pathological conditions or external stimuli, ATP is sequentially hydrolyzed to adenosine by CD39 and CD73. The combination of adenosine and A2AR can increase the concentration of cAMP and activate a series of downstream signaling pathways, and further playing the role of immunosuppression and promotion of tumor invasion. A2AR is expressed to some extent on various immune cells, where it is abnormally expressed on immune cells in cancers and autoimmune diseases. A2AR expression also correlates with disease progression. Inhibitors and agonists of A2AR may be potential new strategies for treatment of cancers and autoimmune diseases. We herein briefly reviewed the expression and distribution of A2AR, adenosine/A2AR signaling pathway, expression, and potential as a therapeutic target.
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Affiliation(s)
- Hongling Ye
- Department of Clinical Laboratory Medicine, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, P.R. China
| | - Junqi Zhao
- Department of Clinical Laboratory Medicine, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, P.R. China
| | - Xuejing Xu
- Department of Clinical Laboratory Medicine, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, P.R. China
| | - Dagan Zhang
- Department of Clinical Laboratory Medicine, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, P.R. China
| | - Han Shen
- Department of Clinical Laboratory Medicine, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, P.R. China
| | - Sen Wang
- Department of Clinical Laboratory Medicine, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, P.R. China
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Li ZY, Cai ML, Qin Y, Chen Z. Age/autoimmunity-associated B cells in inflammatory arthritis: An emerging therapeutic target. Front Immunol 2023; 14:1103307. [PMID: 36817481 PMCID: PMC9933781 DOI: 10.3389/fimmu.2023.1103307] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 01/10/2023] [Indexed: 01/25/2023] Open
Abstract
Age/autoimmunity-associated B cells (ABCs) are a novel B cell subpopulation with a unique transcriptional signature and cell surface phenotype. They are not sensitive to BCR but rely on TLR7 or TLR9 in the context of T cell-derived cytokines for the differentiation. It has been established that aberrant expansion of ABCs is linked to the pathogenesis of systemic autoimmune diseases such as systemic lupus erythematosus. Recently, we and other groups have shown that increased ABCs is associated with rheumatoid arthritis (RA) disease activity and have demonstrated their pathogenic role in RA, indicating that targeting specific B cell subsets is a promising strategy for the treatment of inflammatory arthritis. In this review, we summarize the current knowledge of ABCs, focusing on their emerging role in the pathogenesis of inflammatory arthritis. A deep understanding of the biology of ABCs in the context of inflammatory settings in vivo will ultimately contribute to the development of novel targeted therapies for the treatment of inflammatory arthritis.
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Affiliation(s)
- Zhen-Yu Li
- Department of Rheumatology and Immunology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ming-Long Cai
- Department of Rheumatology and Immunology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yi Qin
- Department of Rheumatology and Immunology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Zhu Chen
- Department of Rheumatology and Immunology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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Sadatpour O, Ebrahimi MT, Akhtari M, Ahmadzadeh N, Vojdanian M, Jamshidi A, Farhadi E, Mahmoudi M. A 2A adenosine receptor agonist reduced MMP8 expression in healthy M2-like macrophages but not in macrophages from ankylosing spondylitis patients. BMC Musculoskelet Disord 2022; 23:908. [PMID: 36221125 PMCID: PMC9555099 DOI: 10.1186/s12891-022-05846-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 09/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Ankylosing spondylitis (AS) is an inflammatory autoimmune disease that mostly affects different joints of the body. Macrophages are the predominant cells that mediate disease progression by secreting several pro-inflammatory mediators. Different receptors are involved in macrophages' function including the adenosine receptors (AR). Our main objective in this study was to assess the effect of applying A2A adenosine receptor agonist (CGS-21,680) on the gene expression of inflammatory mediators including bone morphogenetic proteins (BMP)-2, 4 and matrix metalloproteinases (MMP)-3, 8, 9, and 13 on the macrophages from AS patients compared to healthy macrophages. METHODS Monocytes were isolated from the whole blood of 28 individuals (AS patients and healthy controls in a 1:1 ratio). Macrophages were differentiated using macrophage colony-stimulating factor (M-CSF), and flow cytometry was performed to confirm surface markers. CGS-21,680 was used to treat cells that had been differentiated. Using SYBR green real-time PCR, relative gene expression was determined. RESULTS Activating A2AAR diminished MMP8 expression in healthy macrophages while it cannot reduce MMP8 expression in patients' macrophages. The effect of A2AAR activation on the expression of BMP2 and MMP9 reached statistical significance neither in healthy macrophages nor in the patients' group. We also discovered a significant positive connection between MMP8 expression and patient scores on the Bath ankylosing spondylitis functional index (BASFI). CONCLUSION Due to the disability of A2AAR activation in the reduction of MMP8 expression in patients' macrophages and the correlation of MMP8 expression with BASFI index in patients, these results represent defects and dysregulations in the related signaling pathway in patients' macrophages.
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Affiliation(s)
- Omid Sadatpour
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Maryam Akhtari
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nooshin Ahmadzadeh
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Vojdanian
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Farhadi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran. .,Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran. .,Rheumatology Research Center, Tehran University of Medical Sciences, Shariati Hospital, Kargar Ave, P.O. Box: 1411713137, +98-218-822-1449, Tehran, Iran.
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran. .,Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran. .,Rheumatology Research Center, Tehran University of Medical Sciences, Shariati Hospital, Kargar Ave, P.O. Box: 1411713137, +98-218-822-1449, Tehran, Iran.
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Cai M, Liu W, Wu Y, Zheng Q, Liu D, Shi G. The serum uric acid is longitudinally related to patients global assessment of disease activity in male patients with axial spondyloarthritis. BMC Musculoskelet Disord 2022; 23:717. [PMID: 35897055 PMCID: PMC9327298 DOI: 10.1186/s12891-022-05657-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 07/13/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives To investigate longitudinal relationship between serum uric acid (SUA) and disease activity among Chinese males with axial spondyloarthritis (axSpA). Methods Two-year data from the NASA study cohort of male patients with axial spondyloarthritis were analyzed. Patients global assessment of disease activity (PtGA), BASDAI, ASDAS-CRP, BASFI, and SF-36 were used as the outcomes. The autoregressive Generalized Estimation Equation (GEE) model was used to investigate the longitudinal relationship between SUA and the above outcomes. Age and gender and symptom duration were tested as effect modifiers or confounders. Results In total, 102 male axSpA patients were included, 33.3% of who were hyperuricemia at baseline. Over time,serum uric acid levels associated with the global assessment of patient global assessment of disease activity (PtGA)[P=0.041, β=-2.059,95%CI(-4.032, -0.086)], SF-36: Vitality (VT) [P=0.01, β=1.751, 95%CI (0.415,3.087)], SF-36: Social Functioning (SF)[P=0.002, β= 2.968,95%CI (1.067,4.869)]). And these relationgships were independent of age, symptom duration, baseline uric acid levels, and medication use. Conclusions In summary, SUA levels is longitudinally related to PtGA and mental health assessment. Age, gender and symptom duration do not have an impact on the relationships. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-022-05657-3.
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Affiliation(s)
- Meimei Cai
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Wen Liu
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Yuanhui Wu
- Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital Affiliated of Nanchang University, Nanchang, China
| | - Qing Zheng
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Dehao Liu
- Department of Radiology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Guixiu Shi
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.
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Catarzi D, Varano F, Vigiani E, Calenda S, Melani F, Varani K, Vincenzi F, Pasquini S, Mennini N, Nerli G, Dal Ben D, Volpini R, Colotta V. 4-Heteroaryl Substituted Amino-3,5-Dicyanopyridines as New Adenosine Receptor Ligands: Novel Insights on Structure-Activity Relationships and Perspectives. Pharmaceuticals (Basel) 2022; 15:ph15040478. [PMID: 35455475 PMCID: PMC9024521 DOI: 10.3390/ph15040478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/31/2022] [Accepted: 04/09/2022] [Indexed: 12/04/2022] Open
Abstract
A new set of amino-3,5-dicyanopyridines was synthesized and biologically evaluated at the adenosine receptors (ARs). This chemical class is particularly versatile, as small structural modifications can influence not only affinity and selectivity, but also the pharmacological profile. Thus, in order to deepen the structure–activity relationships (SARs) of this series, different substituents were evaluated at the diverse positions on the dicyanopyridine scaffold. In general, the herein reported compounds show nanomolar binding affinity and interact better with both the human (h) A1 and A2A ARs than with the other subtypes. Docking studies at hAR structure were performed to rationalize the observed affinity data. Of interest are compounds 1 and 5, which can be considered as pan ligands as binding all the ARs with comparable nanomolar binding affinity (A1AR: 1, Ki = 9.63 nM; 5, Ki = 2.50 nM; A2AAR: 1, Ki = 21 nM; 5, Ki = 24 nM; A3AR: 1, Ki = 52 nM; 5, Ki = 25 nM; A2BAR: 1, EC50 = 1.4 nM; 5, EC50 = 1.12 nM). Moreover, these compounds showed a partial agonist profile at all the ARs. This combined AR partial agonist activity could lead us to hypothesize a potential effect in the repair process of damaged tissue that would be beneficial in both wound healing and remodeling.
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Affiliation(s)
- Daniela Catarzi
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy; (F.V.); (E.V.); (S.C.); (F.M.); (V.C.)
- Correspondence:
| | - Flavia Varano
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy; (F.V.); (E.V.); (S.C.); (F.M.); (V.C.)
| | - Erica Vigiani
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy; (F.V.); (E.V.); (S.C.); (F.M.); (V.C.)
| | - Sara Calenda
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy; (F.V.); (E.V.); (S.C.); (F.M.); (V.C.)
| | - Fabrizio Melani
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy; (F.V.); (E.V.); (S.C.); (F.M.); (V.C.)
| | - Katia Varani
- Dipartimento di Medicina Traslazionale, Università degli Studi di Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (K.V.); (F.V.); (S.P.)
| | - Fabrizio Vincenzi
- Dipartimento di Medicina Traslazionale, Università degli Studi di Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (K.V.); (F.V.); (S.P.)
| | - Silvia Pasquini
- Dipartimento di Medicina Traslazionale, Università degli Studi di Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (K.V.); (F.V.); (S.P.)
| | - Natascia Mennini
- Dipartimento di Chimica Ugo Schiff, Università degli Studi di Firenze, Via della Lastruccia, 3, 50019 Sesto Fiorentino, Italy; (N.M.); (G.N.)
| | - Giulia Nerli
- Dipartimento di Chimica Ugo Schiff, Università degli Studi di Firenze, Via della Lastruccia, 3, 50019 Sesto Fiorentino, Italy; (N.M.); (G.N.)
| | - Diego Dal Ben
- Scuola di Scienze del Farmaco e dei Prodotti della Salute, Università degli Studi di Camerino, Via S.Agostino 1, 62032 Camerino, Italy; (D.D.B.); (R.V.)
| | - Rosaria Volpini
- Scuola di Scienze del Farmaco e dei Prodotti della Salute, Università degli Studi di Camerino, Via S.Agostino 1, 62032 Camerino, Italy; (D.D.B.); (R.V.)
| | - Vittoria Colotta
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy; (F.V.); (E.V.); (S.C.); (F.M.); (V.C.)
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10
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Levack RC, Newell KL, Cabrera-Martinez B, Cox J, Perl A, Bastacky SI, Winslow GM. Adenosine receptor 2a agonists target mouse CD11c +T-bet + B cells in infection and autoimmunity. Nat Commun 2022; 13:452. [PMID: 35064115 PMCID: PMC8782827 DOI: 10.1038/s41467-022-28086-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 12/20/2021] [Indexed: 12/22/2022] Open
Abstract
CD11c+T-bet+ B cells are recognized as an important component of humoral immunity and autoimmunity. These cells can be distinguished from other B cells by their higher expression of the adenosine receptor 2a. Here we address whether A2A receptor activation can affect CD11c+T-bet+ B cells. We show that administration of the A2A receptor agonist CGS-21680 depletes established CD11c+T-bet+ B cells in ehrlichial-infected mice, in a B cell-intrinsic manner. Agonist treatment similarly depletes CD11c+T-bet+ B cells and CD138+ B cells and reduces anti-nuclear antibodies in lupus-prone mice. Agonist treatment is also associated with reduced kidney pathology and lymphadenopathy. Moreover, A2A receptor stimulation depletes pathogenic lymphocytes and ameliorates disease even after disease onset, highlighting the therapeutic potential of this treatment. This study suggests that targeting the adenosine signaling pathway may provide a method for the treatment of lupus and other autoimmune diseases mediated by T-bet+ B cells.
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Affiliation(s)
- Russell C Levack
- Department of Microbiology and Immunology, Upstate Medical University, Syracuse, NY, 13210, USA
- University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Krista L Newell
- Department of Microbiology and Immunology, Upstate Medical University, Syracuse, NY, 13210, USA
| | | | - Justin Cox
- Department of Microbiology and Immunology, Upstate Medical University, Syracuse, NY, 13210, USA
| | - Andras Perl
- Department of Medicine, Division of Rheumatology, Upstate Medical University, Syracuse, NY, 13210, USA
| | - Sheldon I Bastacky
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Gary M Winslow
- Department of Microbiology and Immunology, Upstate Medical University, Syracuse, NY, 13210, USA.
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11
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Jung SM, Peyton L, Essa H, Choi DS. Adenosine receptors: Emerging non-opioids targets for pain medications. NEUROBIOLOGY OF PAIN (CAMBRIDGE, MASS.) 2022; 11:100087. [PMID: 35372716 PMCID: PMC8971635 DOI: 10.1016/j.ynpai.2022.100087] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 11/16/2022]
Abstract
Physical and emotional pain deteriorates the quality of well-being. Also, numerous non-invasive and invasive treatments for diagnosed diseases such as cancer medications and surgical procedures cause various types of pain. Despite the multidisciplinary approaches available to manage pain, the unmet needs for medication with minimal side effects are substantial. Especially with the surge of opioid crisis during the last decades, non-opioid analgesics may reduce life-threatening overdosing and addictive liability. Although many clinical trials supported the potential potency of cannabis and cannabidiol (CBD) in pain management or treatment, the long-term benefits of cannabis or CBD are still not evident. At the same time, growing evidence shows the risk of overusing cannabis and CBD. Therefore, it is urgent to develop novel analgesic medications that minimize side effects. All four well-identified adenosine receptors, A1, A2A, A2B, and A3, are implicated in pain. Recently, a report demonstrated that an adenosine A1R-specific positive allosteric modulator (PAM) is a potent analgesic without noticeable side effects. Also, several A3R agonists are being considered as promising analgesic agent. However, the importance of adenosine in pain is relatively underestimated. To help readers understand, first, we will summarize the historical perspective of the adenosine system in preclinical and clinical studies. Then, we will discuss possible interactions of adenosine and opioids or the cannabis system focusing on pain. Overall, this review will provide the potential role of adenosine and adenosine receptors in pain treatment.
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Affiliation(s)
- Soo-Min Jung
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine and Science, Rochester, MN, United States
| | - Lee Peyton
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine and Science, Rochester, MN, United States
| | - Hesham Essa
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine and Science, Rochester, MN, United States
| | - Doo-Sup Choi
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine and Science, Rochester, MN, United States.,Neuroscience Program, Mayo Clinic College of Medicine and Science, Rochester, MN, United States.,Department of Psychiatry and Psychology, Mayo Clinic College of Medicine and Science, Rochester, MN, United States
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12
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Saini A, Patel R, Gaba S, Singh G, Gupta GD, Monga V. Adenosine receptor antagonists: Recent advances and therapeutic perspective. Eur J Med Chem 2021; 227:113907. [PMID: 34695776 DOI: 10.1016/j.ejmech.2021.113907] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 10/05/2021] [Accepted: 10/05/2021] [Indexed: 12/14/2022]
Abstract
Adenosine is an endogenous purine-based nucleoside expressed nearly in all body tissues. It regulates various body functions by activating four G-protein coupled receptors, A1, A2A, A2B, and A3. These receptors are widely acknowledged as drug targets for treating different neurological, metabolic, and inflammatory diseases. Although numerous adenosine receptor inhibitors have been developed worldwide, achieving target selectivity is still a big hurdle in drug development. However, the identification of specific radioligands-based affinity assay, fluorescent ligands, and MS-based ligand assay have contributed to the development of selective and potent adenosine ligands. In recent years various small heterocyclic-based molecules have shown some promising results. Istradefylline has been approved for treating Parkinson's in Japan, while preladenant, tozadenant, CVT-6883, MRS-1523, and many more are under different phases of clinical development. The present review is focused on the quest to develop potent and selective adenosine inhibitors from 2013 to early 2021 by various research groups. The review also highlights their biological activity, selectivity, structure-activity relationship, molecular docking, and mechanistic studies. A special emphsesis on drug designing strategies has been also given the manuscript. The comprehensive compilation of research work carried out in the field will provide inevitable scope for designing and developing novel adenosine inhibitors with improved selectivity and efficacy.
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Affiliation(s)
- Anjali Saini
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, 142001, Punjab, India
| | - Rajiv Patel
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, 142001, Punjab, India
| | - Sobhi Gaba
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, 142001, Punjab, India
| | - Gurpreet Singh
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, 142001, Punjab, India.
| | - G D Gupta
- Department of Pharmaceutics, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, 142001, Punjab, India
| | - Vikramdeep Monga
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, 142001, Punjab, India.
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13
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A 2A Adenosine Receptor as a Potential Biomarker and a Possible Therapeutic Target in Alzheimer's Disease. Cells 2021; 10:cells10092344. [PMID: 34571993 PMCID: PMC8469578 DOI: 10.3390/cells10092344] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 08/31/2021] [Indexed: 12/11/2022] Open
Abstract
Alzheimer’s disease (AD) is one of the most common neurodegenerative pathologies. Its incidence is in dramatic growth in Western societies and there is a need of both biomarkers to support the clinical diagnosis and drugs for the treatment of AD. The diagnostic criteria of AD are based on clinical data. However, it is necessary to develop biomarkers considering the neuropathology of AD. The A2A receptor, a G-protein coupled member of the P1 family of adenosine receptors, has different functions crucial for neurodegeneration. Its activation in the hippocampal region regulates synaptic plasticity and in particular glutamate release, NMDA receptor activation and calcium influx. Additionally, it exerts effects in neuroinflammation, regulating the secretion of pro-inflammatory cytokines. In AD patients, its expression is increased in the hippocampus/entorhinal cortex more than in the frontal cortex, a phenomenon not observed in age-matched control brains, indicating an association with AD pathology. It is upregulated in peripheral blood cells of patients affected by AD, thus reflecting its increase at central neuronal level. This review offers an overview on the main AD biomarkers and the potential role of A2A adenosine receptor as a new marker and therapeutic target.
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14
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Pasquini S, Contri C, Borea PA, Vincenzi F, Varani K. Adenosine and Inflammation: Here, There and Everywhere. Int J Mol Sci 2021; 22:7685. [PMID: 34299305 PMCID: PMC8304851 DOI: 10.3390/ijms22147685] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/16/2021] [Accepted: 07/16/2021] [Indexed: 02/06/2023] Open
Abstract
Adenosine is a ubiquitous endogenous modulator with the main function of maintaining cellular and tissue homeostasis in pathological and stress conditions. It exerts its effect through the interaction with four G protein-coupled receptor (GPCR) subtypes referred as A1, A2A, A2B, and A3 adenosine receptors (ARs), each of which has a unique pharmacological profile and tissue distribution. Adenosine is a potent modulator of inflammation, and for this reason the adenosinergic system represents an excellent pharmacological target for the myriad of diseases in which inflammation represents a cause, a pathogenetic mechanism, a consequence, a manifestation, or a protective factor. The omnipresence of ARs in every cell of the immune system as well as in almost all cells in the body represents both an opportunity and an obstacle to the clinical use of AR ligands. This review offers an overview of the cardinal role of adenosine in the modulation of inflammation, showing how the stimulation or blocking of its receptors or agents capable of regulating its extracellular concentration can represent promising therapeutic strategies for the treatment of chronic inflammatory pathologies, neurodegenerative diseases, and cancer.
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Affiliation(s)
- Silvia Pasquini
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (S.P.); (C.C.); (K.V.)
| | - Chiara Contri
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (S.P.); (C.C.); (K.V.)
| | | | - Fabrizio Vincenzi
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (S.P.); (C.C.); (K.V.)
| | - Katia Varani
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (S.P.); (C.C.); (K.V.)
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15
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Durante M, Squillace S, Lauro F, Giancotti LA, Coppi E, Cherchi F, Di Cesare Mannelli L, Ghelardini C, Kolar G, Wahlman C, Opejin A, Xiao C, Reitman ML, Tosh DK, Hawiger D, Jacobson KA, Salvemini D. Adenosine A3 agonists reverse neuropathic pain via T cell-mediated production of IL-10. J Clin Invest 2021; 131:139299. [PMID: 33621215 DOI: 10.1172/jci139299] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 02/19/2021] [Indexed: 12/16/2022] Open
Abstract
The A3 adenosine receptor (A3AR) has emerged as a therapeutic target with A3AR agonists to tackle the global challenge of neuropathic pain, and investigation into its mode of action is essential for ongoing clinical development. Immune cell A3ARs, and their activation during pathology, modulate cytokine release. Thus, the use of immune cells as a cellular substrate for the pharmacological action of A3AR agonists is enticing, but unknown. The present study discovered that Rag-KO mice lacking T and B cells, as compared with WT mice, are insensitive to the anti-allodynic effects of A3AR agonists. Similar findings were observed in interleukin-10 and interleukin-10 receptor knockout mice. Adoptive transfer of CD4+ T cells from WT mice infiltrated the dorsal root ganglion (DRG) and restored A3AR agonist-mediated anti-allodynia in Rag-KO mice. CD4+ T cells from Adora3-KO or Il10-KO mice did not. Transfer of CD4+ T cells from WT mice, but not Il10-KO mice, into Il10-KO mice or Adora3-KO mice fully reinstated the anti-allodynic effects of A3AR activation. Notably, A3AR agonism reduced DRG neuron excitability when cocultured with CD4+ T cells in an IL-10-dependent manner. A3AR action on CD4+ T cells infiltrated in the DRG decreased phosphorylation of GluN2B-containing N-methyl-D-aspartate receptors at Tyr1472, a modification associated with regulating neuronal hypersensitivity. Our findings establish that activation of A3AR on CD4+ T cells to release IL-10 is required and sufficient evidence for the use of A3AR agonists as therapeutics.
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Affiliation(s)
- Mariaconcetta Durante
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri, USA.,Department of Neuroscience, Psychology, Drug Research and Child Health, Section of Pharmacology, University of Florence, Florence, Italy
| | - Silvia Squillace
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri, USA.,Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, St. Louis, Missouri, USA.,Department of Physiology and Pharmacology "V. Erspamer," Sapienza University of Rome, Rome, Italy
| | - Filomena Lauro
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri, USA.,Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, St. Louis, Missouri, USA.,Institute of Research for Food Safety & Health, Department of Health Sciences, University "Magna Graecia" of Catanzaro, Catanzaro, Italy
| | - Luigino Antonio Giancotti
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri, USA.,Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Elisabetta Coppi
- Department of Neuroscience, Psychology, Drug Research and Child Health, Section of Pharmacology, University of Florence, Florence, Italy
| | - Federica Cherchi
- Department of Neuroscience, Psychology, Drug Research and Child Health, Section of Pharmacology, University of Florence, Florence, Italy
| | - Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and Child Health, Section of Pharmacology, University of Florence, Florence, Italy
| | - Carla Ghelardini
- Department of Neuroscience, Psychology, Drug Research and Child Health, Section of Pharmacology, University of Florence, Florence, Italy
| | - Grant Kolar
- Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, St. Louis, Missouri, USA.,Department of Pathology, and
| | - Carrie Wahlman
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Adeleye Opejin
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Cuiying Xiao
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA
| | - Marc L Reitman
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA
| | - Dilip K Tosh
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA
| | - Daniel Hawiger
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Kenneth A Jacobson
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA
| | - Daniela Salvemini
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri, USA.,Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, St. Louis, Missouri, USA
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16
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Giuliani AL, Sarti AC, Di Virgilio F. Ectonucleotidases in Acute and Chronic Inflammation. Front Pharmacol 2021; 11:619458. [PMID: 33613285 PMCID: PMC7887318 DOI: 10.3389/fphar.2020.619458] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/21/2020] [Indexed: 12/16/2022] Open
Abstract
Ectonucleotidases are extracellular enzymes with a pivotal role in inflammation that hydrolyse extracellular purine and pyrimidine nucleotides, e.g., ATP, UTP, ADP, UDP, AMP and NAD+. Ectonucleotidases, expressed by virtually all cell types, immune cells included, either as plasma membrane-associated or secreted enzymes, are classified into four main families: 1) nucleoside triphosphate diphosphohydrolases (NTPDases), 2) nicotinamide adenine dinucleotide glycohydrolase (NAD glycohydrolase/ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 1), 3) ecto-5′-nucleotidase (NT5E), and 4) ecto-nucleotide pyrophosphatase/phosphodiesterases (NPPs). Concentration of ATP, UTP and NAD+ can be increased in the extracellular space thanks to un-regulated, e.g., cell damage or cell death, or regulated processes. Regulated processes include secretory exocytosis, connexin or pannexin hemichannels, ATP binding cassette (ABC) transporters, calcium homeostasis modulator (CALMH) channels, the ATP-gated P2X7 receptor, maxi-anion channels (MACs) and volume regulated ion channels (VRACs). Hydrolysis of extracellular purine nucleotides generates adenosine, an important immunosuppressant. Extracellular nucleotides and nucleosides initiate or dampen inflammation via P2 and P1 receptors, respectively. All these agents, depending on their level of expression or activation and on the agonist concentration, are potent modulators of inflammation and key promoters of host defences, immune cells activation, pathogen clearance, tissue repair and regeneration. Thus, their knowledge is of great importance for a full understanding of the pathophysiology of acute and chronic inflammatory diseases. A selection of these pathologies will be briefly discussed here.
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Affiliation(s)
- Anna Lisa Giuliani
- Section of Experimental Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Alba Clara Sarti
- Section of Experimental Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Francesco Di Virgilio
- Section of Experimental Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
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17
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Targeting Adenosine Receptors: A Potential Pharmacological Avenue for Acute and Chronic Pain. Int J Mol Sci 2020; 21:ijms21228710. [PMID: 33218074 PMCID: PMC7698931 DOI: 10.3390/ijms21228710] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 11/17/2020] [Indexed: 12/14/2022] Open
Abstract
Adenosine is a purine nucleoside, responsible for the regulation of multiple physiological and pathological cellular and tissue functions by activation of four G protein-coupled receptors (GPCR), namely A1, A2A, A2B, and A3 adenosine receptors (ARs). In recent years, extensive progress has been made to elucidate the role of adenosine in pain regulation. Most of the antinociceptive effects of adenosine are dependent upon A1AR activation located at peripheral, spinal, and supraspinal sites. The role of A2AAR and A2BAR is more controversial since their activation has both pro- and anti-nociceptive effects. A3AR agonists are emerging as promising candidates for neuropathic pain. Although their therapeutic potential has been demonstrated in diverse preclinical studies, no AR ligands have so far reached the market. To date, novel pharmacological approaches such as adenosine regulating agents and allosteric modulators have been proposed to improve efficacy and limit side effects enhancing the effect of endogenous adenosine. This review aims to provide an overview of the therapeutic potential of ligands interacting with ARs and the adenosinergic system for the treatment of acute and chronic pain.
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18
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Colangelo MT, Galli C, Guizzardi S. Polydeoxyribonucleotide Regulation of Inflammation. Adv Wound Care (New Rochelle) 2020. [DOI: 10.1089/wound.2019.1031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
- Maria Teresa Colangelo
- Histology and Embryology Laboratory, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Carlo Galli
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Stefano Guizzardi
- Histology and Embryology Laboratory, Department of Medicine and Surgery, University of Parma, Parma, Italy
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19
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Magni G, Ceruti S. Adenosine Signaling in Autoimmune Disorders. Pharmaceuticals (Basel) 2020; 13:ph13090260. [PMID: 32971792 PMCID: PMC7558305 DOI: 10.3390/ph13090260] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/15/2020] [Accepted: 09/18/2020] [Indexed: 12/14/2022] Open
Abstract
The molecular components of the purinergic system (i.e., receptors, metabolizing enzymes and membrane transporters) are widely expressed in the cells of the immune system. Additionally, high concentrations of adenosine are generated from the hydrolysis of ATP in any "danger" condition, when oxygen and energy availability dramatically drops. Therefore, adenosine acts as a retaliatory metabolite to counteract the nucleotide-mediated boost of the immune reaction. Based on this observation, it can be foreseen that the recruitment with selective agonists of the receptors involved in the immunomodulatory effect of adenosine might represent an innovative anti-inflammatory approach with potential exploitation in autoimmune disorders. Quite surprisingly, pro-inflammatory activity exerted by some adenosine receptors has been also identified, thus paving the way for the hypothesis that at least some autoimmune disorders may be caused by a derailment of adenosine signaling. In this review article, we provide a general overview of the roles played by adenosine on immune cells with a specific focus on the development of adenosine-based therapies for autoimmune disorders, as demonstrated by the exciting data from concluded and ongoing clinical trials.
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20
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Chen J, Yuan F, Fan X, Wang Y. Psoriatic arthritis: A systematic review of non-HLA genetic studies and important signaling pathways. Int J Rheum Dis 2020; 23:1288-1296. [PMID: 32761870 DOI: 10.1111/1756-185x.13879] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 04/30/2020] [Accepted: 05/17/2020] [Indexed: 01/20/2023]
Abstract
Psoriatic arthritis (PsA) is a common, chronic inflammatory disease with complex pathogenesis. In recent years, a number of susceptibility non-human leukocyte antigen (HLA) genes of PsA have been revealed, which also act as important factors in the pathogenesis of PsA as well as HLA genes. By searching the databases National Center for Biotechnology Information, Google and PubMed, 37 articles are included and 50 susceptibility non-HLA genes for PsA are presented, such as IL23A, TNIP1, TYK2, STAT4, IL12B, RUNX3 and TRAF3IP2. In these non-HLA genes, some are common genes shared with other diseases, whereas most of these susceptibility genes are related to the pathogenesis of PsA by activation or inhibition of the signaling pathways. Several signaling pathways possibly implicated in the pathogenesis of PsA are introduced in this paper, including the 2 mainly signaling pathways, IL23/Th17 signaling pathway and NF-κB signaling pathway, and the other involved signaling pathways, such as JAK-STAT signaling pathway and MAPK signaling pathway.
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Affiliation(s)
- Jingjing Chen
- Department of Dermatology, Anhui Provincial Corps Hospital of Chinese People's Armed Police Forces, Hefei, China
| | - Feng Yuan
- Department of Dermatology, Anhui Provincial Corps Hospital of Chinese People's Armed Police Forces, Hefei, China
| | - Xing Fan
- Institute of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yahua Wang
- Department of Dermatology, Anhui Provincial Corps Hospital of Chinese People's Armed Police Forces, Hefei, China
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21
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Piperazine- and Piperidine-Containing Thiazolo[5,4- d]pyrimidine Derivatives as New Potent and Selective Adenosine A 2A Receptor Inverse Agonists. Pharmaceuticals (Basel) 2020; 13:ph13080161. [PMID: 32722122 PMCID: PMC7465344 DOI: 10.3390/ph13080161] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 12/23/2022] Open
Abstract
The therapeutic use of A2A adenosine receptor (AR) antagonists for the treatment of neurodegenerative disorders, such as Parkinson and Alzheimer diseases, is a very promising approach. Moreover, the potential therapeutic role of A2A AR antagonists to avoid both immunoescaping of tumor cells and tumor development is well documented. Herein, we report on the synthesis and biological evaluation of a new set of piperazine- and piperidine- containing 7-amino-2-(furan-2-yl)thiazolo[5,4-d]pyrimidine derivatives designed as human A2A AR antagonists/inverse agonists. Binding and potency data indicated that a good number of potent and selective hA2A AR inverse agonists were found. Amongst them, the 2-(furan-2-yl)-N5-(2-(4-phenylpiperazin-1-yl)ethyl)thiazolo[5,4-d]pyrimidine-5,7-diamine 11 exhibited the highest A2A AR binding affinity (Ki = 8.62 nM) as well as inverse agonist potency (IC50 = 7.42 nM). In addition, bioinformatics prediction using the web tool SwissADME revealed that 8, 11, and 19 possessed good drug-likeness profiles.
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22
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Soukup T, Hloch K, Doseděl M, Tebbens JD, Nekvindová J, Šembera Š, Veleta T, Pávek P, Barvík I. The influence of coffee intake and genetics on adenosine pathway in rheumatoid arthritis. Pharmacogenomics 2020; 21:735-749. [PMID: 32615857 DOI: 10.2217/pgs-2020-0042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: We studied the influence of coffee consumption on the therapeutic effect of methotrexate (MTX) in patients with rheumatoid arthritis (RA) sorted according to ADORA2A genotypes. Patients & methods: 82 RA patients were dichotomized according to caffeine intake with a threshold of 700 mg/week. Disease activity score 28 (DAS28) was applied (>3.2: high; <3.2: low or remission). Patients were genotyped using quantitative PCR allelic discrimination. Results: We found significantly higher risk of RA in patients with higher caffeine intake and the CT genotype of ADOARA2A rs2298383, rs3761422 and rs2267076 SNPs. The CC genotype of ADORA2A rs2236624 SNP in patients with lower caffeine intake treated with MTX is significantly protective. Conclusion: ADORA2A genotypes and coffee intake influence risk of RA and efficacy of it MTX treatment.
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Affiliation(s)
- Tomáš Soukup
- 2nd Department of Internal Medicine - Gastroenterology, Division of Rheumatology, Charles University, Faculty of Medicine & University Hospital in Hradec Kralove, Hradec Kralove, 50005, Czech Republic
| | - Karel Hloch
- Department of Social & Clinical Pharmacy, Charles University, Faculty of Pharmacy in Hradec Kralove, Hradec Kralove, 50005, Czech Republic
| | - Martin Doseděl
- Department of Social & Clinical Pharmacy, Charles University, Faculty of Pharmacy in Hradec Kralove, Hradec Kralove, 50005, Czech Republic
| | - Jurjen Duintjer Tebbens
- Department of Biophysics & Physical Chemistry, Charles University, Faculty of Pharmacy in Hradec Kralove, Hradec Kralove, 50005, Czech Republic
| | - Jana Nekvindová
- University Hospital Hradec Kralove, Institute of Clinical Biochemistry and Diagnostics, Hradec Kralove, 50005, Czech Republic
| | - Štěpán Šembera
- 2nd Department of Internal Medicine - Gastroenterology, Division of Rheumatology, Charles University, Faculty of Medicine & University Hospital in Hradec Kralove, Hradec Kralove, 50005, Czech Republic
| | - Tomáš Veleta
- Department of Emergency Medicine, Charles University, University Hospital in Hradec Kralove, Hradec Kralove, 50005, Czech Republic
| | - Petr Pávek
- Department of Pharmacology & Toxicology & Centre for Drug Development, Charles University, Faculty of Pharmacy in Hradec Kralove, Hradec Kralove, 50005, Czech Republic
| | - Ivan Barvík
- Faculty of Mathematics & Physics, Institute of Physics, Charles University, Prague, 12116, Czech Republic
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Adenosinergic System Involvement in Ischemic Stroke Patients' Lymphocytes. Cells 2020; 9:cells9051072. [PMID: 32344922 PMCID: PMC7290971 DOI: 10.3390/cells9051072] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 12/13/2022] Open
Abstract
Adenosine modulates many physiological processes through the interaction with adenosine receptors (ARs) named as A1, A2A, A2B, and A3ARs. During ischemic stroke, adenosine mediates neuroprotective and anti-inflammatory effects through ARs activation. One of the dominant pathways generating extracellular adenosine involves the dephosphorylation of ATP by ecto-nucleotidases CD39 and CD73, which efficiently hydrolyze extracellular ATP to adenosine. The aim of the study is to assess the presence of ARs in lymphocytes from ischemic stroke patients compared to healthy subjects and to analyze changes in CD39 and CD73 expression in CD4+ and CD8+ lymphocytes. Saturation binding experiments revealed that A2AARs affinity and density were significantly increased in ischemic stroke patients whilst no differences were found in A1, A2B, and A3ARs. These results were also confirmed in reverse transcription (RT)-polymerase chain reaction (PCR) assays where A2AAR mRNA levels of ischemic stroke patients were higher than in control subjects. In flow cytometry experiments, the percentage of CD73+ cells was significantly decreased in lymphocytes and in T-lymphocyte subclasses CD4+ and CD8+ obtained from ischemic stroke patients in comparison with healthy individuals. These data corroborate the importance of the adenosinergic system in ischemic stroke and could open the way to more targeted therapeutic approaches and biomarker development for ischemic stroke.
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Sandoval-Talamantes AK, Gómez-González BA, Uriarte-Mayorga DF, Martínez-Guzman MA, Wheber-Hidalgo KA, Alvarado-Navarro A. Neurotransmitters, neuropeptides and their receptors interact with immune response in healthy and psoriatic skin. Neuropeptides 2020; 79:102004. [PMID: 31902596 DOI: 10.1016/j.npep.2019.102004] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 12/22/2019] [Accepted: 12/22/2019] [Indexed: 02/06/2023]
Abstract
Psoriasis is a chronic inflammatory disease with a multifactorial origin that affects the skin. It is characterized by keratinocyte hyperproliferation, which results in erythemato-squamous plaques. Just as the immune system plays a fundamental role in psoriasis physiopathology, the nervous system maintains the inflammatory process through the neuropeptides and neurotransmitters synthesis, as histamine, serotonin, calcitonin gene-related peptide, nerve growth factor, vasoactive intestinal peptide, substance P, adenosine, glucagon-like peptide, somatostatin and pituitary adenylate cyclase polypeptide. In patients with psoriasis, the systemic or in situ expression of these chemical mediators and their receptors are altered, which affects the clinical activity of patients due to its link to the immune system, provoking neurogenic inflammation. It is important to establish the role of the nervous system since it could represent a therapeutic alternative for psoriasis patients. The aim of this review is to offer a detailed review of the current literature about the neuropeptides and neurotransmitters involved in the physiopathology of psoriasis.
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Affiliation(s)
- Ana Karen Sandoval-Talamantes
- Centro de Reabilitación Infantil Teletón de Occidente, Copal 4575, Col. Arboledas del Sur, 44980 Guadalajara, Jalisco, México
| | - B A Gómez-González
- Instituto Dermatológico de Jalisco "Dr. José Barba Rubio", Av. Federalismo Norte 3102, Col. Atemajac del Valle, 45190 Zapopan, Jalisco, México
| | - D F Uriarte-Mayorga
- Instituto Dermatológico de Jalisco "Dr. José Barba Rubio", Av. Federalismo Norte 3102, Col. Atemajac del Valle, 45190 Zapopan, Jalisco, México
| | - M A Martínez-Guzman
- Unima Diagnósticos de México, Paseo de los Mosqueteros 4181, Col. Villa Universitaria, 45110 Zapopan, Jalisco, México
| | - Katia Alejandra Wheber-Hidalgo
- Instituto Dermatológico de Jalisco "Dr. José Barba Rubio", Av. Federalismo Norte 3102, Col. Atemajac del Valle, 45190 Zapopan, Jalisco, México
| | - Anabell Alvarado-Navarro
- Centro de Investigación en Inmunología y dermatología, Universidad de Guadalajara, México, Sierra Mojada 950, Col. Independencia, 44340, Guadalajara, Jalisco, México.
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25
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Akhtari M, Vojdanian M, Javinani A, Ashraf-Ganjouei A, Jamshidi A, Mahmoudi M. Activation of adenosine A 2A receptor induced interleukin-23 mRNA expression in macrophages of ankylosing spondylitis patients. Cytokine 2020; 128:154997. [PMID: 31978612 DOI: 10.1016/j.cyto.2020.154997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 01/02/2020] [Accepted: 01/10/2020] [Indexed: 12/27/2022]
Abstract
BACKGROUND Ankylosing spondylitis (AS) is an auto-inflammatory debilitating disorder with a complex pathogenesis. The adenosinergic pathway is an immunologic regulating pathway with a potential role in AS pathophysiology. In the present study, we have aimed to investigate the influence of A2A adenosine receptor (A2AAR) activation on tumor necrosis factor-α (TNF-α) and interleukin-23 (IL-23) expression and secretion by monocyte-generated macrophages of AS patients. METHODS Whole-blood separated monocytes were extracted from 14 AS patients and 14 healthy controls. Macrophages were differentiated by macrophage colony-stimulating factor (M-CSF), and surface markers were confirmed by flow cytometer. Cells were treated with CGS-21680 as a known agonist of A2AAR. Analysis of ADORA2A, TNFA, and IL23A gene expression was performed by SYBR green real-time PCR. The concentration of secreted cytokines was also measured by ELISA kits. RESULTS Based on our analysis, CGS-21680 significantly decreased TNF-α secretion by monocyte-derived macrophages of AS patients. Moreover, A2AAR agonist increased the IL23A mRNA expression level in monocyte-derived macrophages of AS patients considerably. Whereas, CGS-21680 did not have any influence on macrophages of healthy individuals. CONCLUSION According to our results, it appears that A2AAR activation can increase IL-23 secretion by monocyte-derived macrophages of AS patients. Although the TNF-α reducing effect of A2AAR agonists can be a potential target in AS treatment, robust increasing of IL-23 should be considered as the undesirable effect of these agents.
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Affiliation(s)
- Maryam Akhtari
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Cell & Molecular Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Mahdi Vojdanian
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Javinani
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Ashraf-Ganjouei
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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26
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Corciulo C, Cronstein BN. Signaling of the Purinergic System in the Joint. Front Pharmacol 2020; 10:1591. [PMID: 32038258 PMCID: PMC6993121 DOI: 10.3389/fphar.2019.01591] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 12/09/2019] [Indexed: 12/15/2022] Open
Abstract
The joint is a complex anatomical structure consisting of different tissues, each with a particular feature, playing together to give mobility and stability at the body. All the joints have a similar composition including cartilage for reducing the friction of the movement and protecting the underlying bone, a synovial membrane that produces synovial fluid to lubricate the joint, ligaments to limit joint movement, and tendons for the interaction with muscles. Direct or indirect damage of one or more of the tissues forming the joint is the foundation of different pathological conditions. Many molecular mechanisms are involved in maintaining the joint homeostasis as well as in triggering disease development. The molecular pathway activated by the purinergic system is one of them.The purinergic signaling defines a group of receptors and intermembrane channels activated by adenosine, adenosine diphosphate, adenosine 5’-triphosphate, uridine triphosphate, and uridine diphosphate. It has been largely described as a modulator of many physiological and pathological conditions including rheumatic diseases. Here we will give an overview of the purinergic system in the joint describing its expression and function in the synovium, cartilage, ligament, tendon, and bone with a therapeutic perspective.
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Affiliation(s)
- Carmen Corciulo
- Division of Translational Medicine, Department of Medicine, NYU School of Medicine, New York, NY, United States.,Krefting Research Centre-Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Bruce N Cronstein
- Division of Translational Medicine, Department of Medicine, NYU School of Medicine, New York, NY, United States.,Division of Rheumatology, Department of Medicine, NYU School of Medicine, New York, NY, United States
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27
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Catarzi D, Varano F, Varani K, Vincenzi F, Pasquini S, Dal Ben D, Volpini R, Colotta V. Amino-3,5-Dicyanopyridines Targeting the Adenosine Receptors Ranging from Pan Ligands to Combined A 1/A 2B Partial Agonists. Pharmaceuticals (Basel) 2019; 12:ph12040159. [PMID: 31652622 PMCID: PMC6958422 DOI: 10.3390/ph12040159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 12/17/2022] Open
Abstract
The amino-3,5-dicyanopyridine derivatives belong to an intriguing series of adenosine receptor (AR) ligands that has been developed by both academic researchers and industry. Indeed, the studies carried out to date underline the versatility of the dicyanopyridine scaffold to obtain AR ligands with not only a wide range of affinities but also with diverse degrees of efficacies at the different ARs. These observations prompted us to investigate on the structure-activity relationships (SARs) of this series leading to important previously reported results. The present SAR study has helped to confirm the 1H-imidazol-2-yl group at R2 position as an important feature for producing potent AR agonists. Moreover, the nature of the R1 substituent highly affects not only affinity/activity at the hA1 and hA2B ARs but also selectivity versus the other subtypes. Potent hA1 and hA2B AR ligands were developed, and among them, the 2-amino-6-[(1H-imidazol-2-ylmethyl)sulfanyl]-4-[4-(prop-2-en-1-yloxy)phenyl]pyridine-3,5-dicarbonitrile (3) is active in the low nanomolar range at these subtypes and shows a good trend of selectivity versus both the hA2A and hA3 ARs. This combined hA1/hA2B partial agonist activity leads to a synergistic effect on glucose homeostasis and could potentially be beneficial in treating diabetes and related complications.
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Affiliation(s)
- Daniela Catarzi
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy.
| | - Flavia Varano
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy.
| | - Katia Varani
- Dipartimento di Scienze Mediche, Sezione di Farmacologia, Università degli Studi di Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy.
| | - Fabrizio Vincenzi
- Dipartimento di Scienze Mediche, Sezione di Farmacologia, Università degli Studi di Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy.
| | - Silvia Pasquini
- Dipartimento di Scienze Mediche, Sezione di Farmacologia, Università degli Studi di Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy.
| | - Diego Dal Ben
- Scuola di Scienze del Farmaco e dei Prodotti della Salute, Università degli Studi di Camerino, via S.Agostino 1, 62032 Camerino (MC); Italy.
| | - Rosaria Volpini
- Scuola di Scienze del Farmaco e dei Prodotti della Salute, Università degli Studi di Camerino, via S.Agostino 1, 62032 Camerino (MC); Italy.
| | - Vittoria Colotta
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy.
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Pal Y, Bandyopadhyay N, Pal RS, Ahmed S, Bandopadhyay S. Perspective and Potential of A2A and A3 Adenosine Receptors as Therapeutic Targets for the Treatment of Rheumatoid Arthritis. Curr Pharm Des 2019; 25:2859-2874. [DOI: 10.2174/1381612825666190710111658] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 07/01/2019] [Indexed: 01/10/2023]
Abstract
Adenosine is a purine nucleoside which is an effective controller of inflammation. The inflammatory effect of adenosine is expressed via its four receptor subtypes viz. A1, A2A, A2B and A3. The various inflammatory conditions including rheumatoid arthritis (RA) are initiated by adenosine receptors of which A2A and A3 play a vital role. RA primarily is an auto-immune disorder which is manifested as chronic inflammation in the synovial lining of joints. In order to develop an effective treatment, the role of cytokines, IL–1, TNF-α and IL–6 is crucial. Besides, the knowledge of PI3K-PKB/Akt and NF-kB signaling pathway is also important to understand the antiinflammatory targets. Methotrexate along with various other molecules like, NSAIDs and DMARDs are presently used as treatment lines for controlling RA. The enhanced knowledge of the preclinical stages and pathogenesis along with recent potent therapeutics raises the hopes that RA can be prevented in the near future.
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Affiliation(s)
- Yogendra Pal
- Department of Pharmacy, Pranveer Singh Institute of Technology, Bhauti, Kanpur, Uttar Pradesh 209305, India
| | - Nabamita Bandyopadhyay
- Molecular Biology Division, National Institute of Malarial Research (NIMR), Dwarka, New Delhi, Delhi 110077, India
| | - Rashmi S. Pal
- Department of Pharmacy, Pranveer Singh Institute of Technology, Bhauti, Kanpur, Uttar Pradesh 209305, India
| | - Sarfaraz Ahmed
- Global Institute of Pharmaceutical Education and Research, Kashipur, Udham Singh Nagar, Uttarakhand 244713, India
| | - Shantanu Bandopadhyay
- Faculty of Pharmacy, Naraina Vidya Peeth Group of Institutions, Panki, Kanpur, Uttar Pradesh 208020, India
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29
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da Silva JLG, Passos DF, Bernardes VM, Leal DBR. ATP and adenosine: Role in the immunopathogenesis of rheumatoid arthritis. Immunol Lett 2019; 214:55-64. [PMID: 31479688 DOI: 10.1016/j.imlet.2019.08.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/20/2019] [Accepted: 08/30/2019] [Indexed: 12/16/2022]
Abstract
Rheumatoid arthritis (RA) is a classic inflammatory autoimmune disease. Local joint destruction and extra-articular manifestations of RA deeply compromise the life quality of the affected patients. RA immunopathogenesis depends on continuous immunogenic activation in which the purinergic system participates. The purinergic system comprises the signaling and metabolism of purines such as adenosine triphosphate (ATP) and adenosine. ATP signaling is involved in the activation and maintenance of the inflammatory state of RA through the activation of P2X7 and the production of cytokines, which orchestrate the pathogenesis of RA. The breakdown of ATP through the CD39/CD73 axis produces adenosine, which mostly inhibits the inflammatory process through activation of specific P1 receptors. Adenosine is hydrolyzed by adenosine deaminase (ADA) that interacts with other molecules playing additional roles in this disease. This review explores the release, metabolism, and the effects of binding of ATP and adenosine to their respective receptors in the context of RA, as well as their potential use as biomarkers and therapeutic targets.
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Affiliation(s)
- Jean L G da Silva
- Laboratório de Imunobiologia Experimental e Aplicada (LABIBIO), Departamento de Microbiologia e Parasitologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Daniela F Passos
- Laboratório de Imunobiologia Experimental e Aplicada (LABIBIO), Departamento de Microbiologia e Parasitologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Viviane M Bernardes
- Laboratório de Imunobiologia Experimental e Aplicada (LABIBIO), Departamento de Microbiologia e Parasitologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Daniela B R Leal
- Laboratório de Imunobiologia Experimental e Aplicada (LABIBIO), Departamento de Microbiologia e Parasitologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
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30
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Betti M, Catarzi D, Varano F, Falsini M, Varani K, Vincenzi F, Pasquini S, di Cesare Mannelli L, Ghelardini C, Lucarini E, Dal Ben D, Spinaci A, Bartolucci G, Menicatti M, Colotta V. Modifications on the Amino-3,5-dicyanopyridine Core To Obtain Multifaceted Adenosine Receptor Ligands with Antineuropathic Activity. J Med Chem 2019; 62:6894-6912. [PMID: 31306001 DOI: 10.1021/acs.jmedchem.9b00106] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A new series of amino-3,5-dicyanopyridines (1-31) was synthesized and biologically evaluated in order to further investigate the potential of this scaffold to obtain adenosine receptor (AR) ligands. In general, the modifications performed have led to compounds having high to good human (h) A1AR affinity and an inverse agonist profile. While most of the compounds are hA1AR-selective, some derivatives behave as mixed hA1AR inverse agonists/A2A and A2B AR antagonists. The latter compounds (9-12) showed that they reduce oxaliplatin-induced neuropathic pain by a mechanism involving the alpha7 subtype of nAchRs, similar to the nonselective AR antagonist caffeine, taken as the reference compound. Along with the pharmacological evaluation, chemical stability of methyl 3-(((6-amino-3,5-dicyano-4-(furan-2-yl)pyridin-2-yl)sulfanyl)methyl)benzoate 10 was assessed in plasma matrices (rat and human), and molecular modeling studies were carried out to better rationalize the available structure-activity relationships.
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Affiliation(s)
- Marco Betti
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica , Università degli Studi di Firenze , Via Ugo Schiff, 6 , 50019 Sesto Fiorentino , Italy
| | - Daniela Catarzi
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica , Università degli Studi di Firenze , Via Ugo Schiff, 6 , 50019 Sesto Fiorentino , Italy
| | - Flavia Varano
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica , Università degli Studi di Firenze , Via Ugo Schiff, 6 , 50019 Sesto Fiorentino , Italy
| | - Matteo Falsini
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica , Università degli Studi di Firenze , Via Ugo Schiff, 6 , 50019 Sesto Fiorentino , Italy
| | - Katia Varani
- Dipartimento di Scienze Mediche, Sezione di Farmacologia , Università degli Studi di Ferrara , Via Fossato di Mortara 17-19 , 44121 Ferrara , Italy
| | - Fabrizio Vincenzi
- Dipartimento di Scienze Mediche, Sezione di Farmacologia , Università degli Studi di Ferrara , Via Fossato di Mortara 17-19 , 44121 Ferrara , Italy
| | - Silvia Pasquini
- Dipartimento di Scienze Mediche, Sezione di Farmacologia , Università degli Studi di Ferrara , Via Fossato di Mortara 17-19 , 44121 Ferrara , Italy
| | - Lorenzo di Cesare Mannelli
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmacologia e Tossicologia , Università degli Studi di Firenze , Viale Pieraccini, 6 , 50139 Firenze , Italy
| | - Carla Ghelardini
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmacologia e Tossicologia , Università degli Studi di Firenze , Viale Pieraccini, 6 , 50139 Firenze , Italy
| | - Elena Lucarini
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmacologia e Tossicologia , Università degli Studi di Firenze , Viale Pieraccini, 6 , 50139 Firenze , Italy
| | - Diego Dal Ben
- Scuola di Scienze del Farmaco e dei Prodotti della Salute , Università degli Studi di Camerino , Via S. Agostino 1 , 62032 Camerino , Macerata , Italy
| | - Andrea Spinaci
- Scuola di Scienze del Farmaco e dei Prodotti della Salute , Università degli Studi di Camerino , Via S. Agostino 1 , 62032 Camerino , Macerata , Italy
| | - Gianluca Bartolucci
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica , Università degli Studi di Firenze , Via Ugo Schiff, 6 , 50019 Sesto Fiorentino , Italy
| | - Marta Menicatti
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica , Università degli Studi di Firenze , Via Ugo Schiff, 6 , 50019 Sesto Fiorentino , Italy
| | - Vittoria Colotta
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica , Università degli Studi di Firenze , Via Ugo Schiff, 6 , 50019 Sesto Fiorentino , Italy
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31
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Antonioli L, Blandizzi C, Pacher P, Haskó G. The Purinergic System as a Pharmacological Target for the Treatment of Immune-Mediated Inflammatory Diseases. Pharmacol Rev 2019; 71:345-382. [PMID: 31235653 PMCID: PMC6592405 DOI: 10.1124/pr.117.014878] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Immune-mediated inflammatory diseases (IMIDs) encompass a wide range of seemingly unrelated conditions, such as multiple sclerosis, rheumatoid arthritis, psoriasis, inflammatory bowel diseases, asthma, chronic obstructive pulmonary disease, and systemic lupus erythematosus. Despite differing etiologies, these diseases share common inflammatory pathways, which lead to damage in primary target organs and frequently to a plethora of systemic effects as well. The purinergic signaling complex comprising extracellular nucleotides and nucleosides and their receptors, the P2 and P1 purinergic receptors, respectively, as well as catabolic enzymes and nucleoside transporters is a major regulatory system in the body. The purinergic signaling complex can regulate the development and course of IMIDs. Here we provide a comprehensive review on the role of purinergic signaling in controlling immunity, inflammation, and organ function in IMIDs. In addition, we discuss the possible therapeutic applications of drugs acting on purinergic pathways, which have been entering clinical development, to manage patients suffering from IMIDs.
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Affiliation(s)
- Luca Antonioli
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy (L.A., C.B.); Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland (P.P.); and Department of Anesthesiology, Columbia University, New York, New York (G.H.)
| | - Corrado Blandizzi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy (L.A., C.B.); Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland (P.P.); and Department of Anesthesiology, Columbia University, New York, New York (G.H.)
| | - Pál Pacher
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy (L.A., C.B.); Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland (P.P.); and Department of Anesthesiology, Columbia University, New York, New York (G.H.)
| | - György Haskó
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy (L.A., C.B.); Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland (P.P.); and Department of Anesthesiology, Columbia University, New York, New York (G.H.)
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Chimenti MS, Triggianese P, De Martino E, Conigliaro P, Fonti GL, Sunzini F, Caso F, Perricone C, Costa L, Perricone R. An update on pathogenesis of psoriatic arthritis and potential therapeutic targets. Expert Rev Clin Immunol 2019; 15:823-836. [PMID: 31177868 DOI: 10.1080/1744666x.2019.1627876] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Introduction: Innate immune response and bone remodeling are key factors contributing to the pathogenesis of psoriatic arthritis (PsA). Moreover, the evidence of autoantibodies in patients' sera suggests an autoimmune side in PsA. Besides the immune pathways, studies strongly support the role of genetic risk alleles in affecting the clinical heterogeneity of PsA as well as the response to therapy. A good clinical response to treatment, indeed, represents a challenge in PsA patients and the identification of patient-targeted therapies is still a critical issue. Areas covered: We performed a systematic review aiming at describing new evidence on PsA pathogenesis and treatments. Reported items for systematic reviews (PRISMA checklist) were analyzed. Studies included from the PubMed database addressed the following items: innate immunity, autoimmunity, bone remodeling, and therapeutic targets in PsA; time frame of research 1970-2019. Specifically, we reviewed data on IL-17 inhibitors, abatacept, JAK inhibitors, ABT 122, and A (3) adenosine receptors agonist, CF101. Expert opinion: In PsA an intriguing pathogenetic network has been documented. Several biological and synthetic drugs are promising in terms of efficacy and safety profile.
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Affiliation(s)
- Maria Sole Chimenti
- a Rheumatology, allergology and clinical immunology, Department of Systems Medicine, University of Rome Tor Vergata , Rome , Italy
| | - Paola Triggianese
- a Rheumatology, allergology and clinical immunology, Department of Systems Medicine, University of Rome Tor Vergata , Rome , Italy
| | - Erica De Martino
- a Rheumatology, allergology and clinical immunology, Department of Systems Medicine, University of Rome Tor Vergata , Rome , Italy
| | - Paola Conigliaro
- a Rheumatology, allergology and clinical immunology, Department of Systems Medicine, University of Rome Tor Vergata , Rome , Italy
| | - Giulia Lavinia Fonti
- a Rheumatology, allergology and clinical immunology, Department of Systems Medicine, University of Rome Tor Vergata , Rome , Italy
| | - Flavia Sunzini
- a Rheumatology, allergology and clinical immunology, Department of Systems Medicine, University of Rome Tor Vergata , Rome , Italy
| | - Francesco Caso
- b Rheumatology Unit, Department of Clinical Medicine and Surgery, School of Medicine and Surgery, University Federico II , Naples , Italy
| | - Carlo Perricone
- c Arthritis Center, Department of Internal Medicine and Medical Specialties, Sapienza University of Rome , Rome , Italy
| | - Luisa Costa
- b Rheumatology Unit, Department of Clinical Medicine and Surgery, School of Medicine and Surgery, University Federico II , Naples , Italy
| | - Roberto Perricone
- a Rheumatology, allergology and clinical immunology, Department of Systems Medicine, University of Rome Tor Vergata , Rome , Italy
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Hou T, Xiang H, Yu L, Su W, Shu Y, Li H, Zhu H, Lin L, Hu X, Liang S, Zhang H, Li M. Electroacupuncture inhibits visceral pain via adenosine receptors in mice with inflammatory bowel disease. Purinergic Signal 2019; 15:193-204. [PMID: 31187350 DOI: 10.1007/s11302-019-09655-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 03/26/2019] [Indexed: 12/19/2022] Open
Abstract
To investigate the involvement of peripheral adenosine receptors in the effect of electroacupuncture (EA) on visceral pain in mice with inflammatory bowel disease (IBD). 2,4,6-Trinitrobenzene sulfonic acid (TNBS) was used to induce the visceral pain model. EA (1 mA, 2 Hz, 30 min) treatment was applied to bilateral acupoints "Dachangshu" (BL25) 1 day after TNBS injection once daily for 7 consecutive days. Von Frey filaments were used to measure the mechanical pain threshold. Western blot was used to detect the protein expression levels of adenosine 1 receptor (A1R), adenosine 2a receptor (A2aR), adenosine 2b receptor (A2bR), adenosine 3 receptor (A3R), substance P (SP), and interleukin 1 beta (IL-1β) in colon tissue. EA significantly ameliorated the disease-related indices and reduced the expression of SP and IL-1β in the colon tissues of mice with IBD. EA increased the expression of A1R, A2aR, and A3R and decreased the expression of A2bR in the colon tissue. Furthermore, the administration of adenosine receptor antagonists influenced the effect of EA. EA can inhibit the expression of the inflammatory factors SP and IL-1β by regulating peripheral A1, A2a, A2b, and A3 receptors, thus inhibiting visceral pain in IBD mice.
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Affiliation(s)
- Tengfei Hou
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Hongchun Xiang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Lingling Yu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wen Su
- Department of Acupuncture, Wuhan Integrated TCM & Western Medicine Hospital, 215 Zhongshan Avenue, Wuhan, 430022, China
| | - Yang Shu
- Department of Central Laboratory, Affiliated Hospital of Jiangsu University, Zhenjiang, 212000, China
| | - Hongping Li
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - He Zhu
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Lixue Lin
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Xuefei Hu
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Shangdong Liang
- Department of Physiology, Basic Medical College of Nanchang University, Nanchang, 330006, China
| | - Hong Zhang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China.
| | - Man Li
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China.
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Zhou S, Liu G, Guo J, Kong F, Chen S, Wang Z. Pro-inflammatory Effect of Downregulated CD73 Expression in EAE Astrocytes. Front Cell Neurosci 2019; 13:233. [PMID: 31191254 PMCID: PMC6549520 DOI: 10.3389/fncel.2019.00233] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 05/09/2019] [Indexed: 01/31/2023] Open
Abstract
CD73, an ectonucleotidase, participates in the regulation of immune responses by controlling the conversion of extracellular AMP to adenosine. In this study, we investigated whether any type of brain cells, especially neuroglia cells, exhibit altered CD73 expression, localization or activity upon experimental autoimmune uveitis (EAU) induction and whether altered CD73 manipulates the activation of effector T cells that interact with such cell types. First, the amount of cell membrane-exposed CD73 was detected by flow cytometry in various types of brain cells collected from either naïve or EAE mice. Compared to that in astrocytes from naïve control mice, the amount of membrane-bound CD73 was significantly decreased in astrocytes from EAE mice, while no significant differences were detected in other cell types. Thereafter, wild-type and CD73-/- astrocytes were used to study whether CD73 influences the function of inflammatory astrocytes, such as the production of cytokines/chemokines and the activation of effector T cells that interact with astrocytes. The results indicated that the addition of exogenous AMP significantly inhibited cytokine/chemokine production by wild type astrocytes but had no effect on CD73-/- astrocytes and that the effect of AMP was almost completely blocked by the addition of either a CD73 inhibitor (APCP) or an adenosine receptor A1 subtype (ARA1) antagonist (DPCPX). Although the addition of AMP did not affect CD73-/- astrocytes, the addition of adenosine successfully inhibited their cytokine/chemokine production. The antigen-specific interaction of astrocytes with invading CD4 cells caused CD73 downregulation in astrocytes from mice that underwent EAE induction. Collectively, our findings support the conclusion that, upon EAE induction, likely due to an interaction with invading CD4+ cells, astrocytes lose most of their membrane-localized CD73; this inhibits the generation of adenosine in the local microenvironment. As adenosine has anti-inflammatory effects on astrocytes and CNS-infiltrating effector T cells in EAE, the downregulation of CD73 in astrocytes may be considered a pro-inflammatory process for facilitating the pathogenesis of EAE.
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Affiliation(s)
- Shumin Zhou
- Clinical Laboratory, The 2nd Hospital of Tianjin Medical University, Tianjin, China
| | - Guoping Liu
- Department of Neurology, Tianjin First Central Hospital, Tianjin, China
| | - Jie Guo
- Department of Neurology, Tianjin First Central Hospital, Tianjin, China
| | - Fanqiang Kong
- Clinical Laboratory, General Hospital of Tianjin Medical University, Tianjin, China
| | - Song Chen
- Department of Ophthalmology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Zhiyun Wang
- Department of Neurology, Tianjin First Central Hospital, Tianjin, China
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2-Allylphenol Reduces IL-1 β and TNF- α, Promoting Antinociception through Adenosinergic, Anti-Inflammatory, and Antioxidant Mechanisms. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1346878. [PMID: 31049124 PMCID: PMC6462329 DOI: 10.1155/2019/1346878] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 11/06/2018] [Accepted: 01/15/2019] [Indexed: 12/18/2022]
Abstract
2-Allylphenol (2-AP) is a synthetic phenylpropanoid, structurally related to cardanol, thymol, and ortho-eugenol. Phenylpropanoids are described in the literature as being capable of promoting biological activity. Due to the similarity between 2-AP and other bioactive phenylpropanoids, the present research aims at evaluating the antioxidant, antinociceptive, and anti-inflammatory potential of 2-AP in silico, in vitro, and in vivo. At 30 min prior to the start of in vivo pharmacological testing, administration of 2-AP (25, 50, 75, and 100 mg/kg i.p.), morphine (6 mg/kg i.p.), dexamethasone (2 mg/kg s.c.), or vehicle alone was performed. In the acetic acid-induced abdominal writhing tests, pretreatment with 2-AP significantly reduced the number of abdominal writhes, as well as decreased licking times in the glutamate and formalin tests. Investigation of the mechanism of action using the formalin model led to the conclusion that the opioid system does not participate in its activity. However, the adenosinergic system is involved. In the peritonitis tests, 2-AP inhibited leukocyte migration and reduced releases of proinflammatory mediators TNF-α and IL-1β. In vitro antioxidant assays demonstrated that 2-AP presents significant ability to sequester superoxide radicals. In silico docking studies confirmed interaction between 2-AP and the adenosine A2a receptor through hydrogen bonds with the critical asparagine 253 residues present in the active site. Investigation of 2-AP demonstrated its nociception inhibition and ability to reduce reactive oxygen species. Its interaction with A2a receptors may well be related to proinflammatory cytokines TNF-α and IL-1β reduction activity, corroborating its antinociceptive effect.
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Wang F, Tian ZG, Lv CH, Geng CW. Baguan Therapy Is an Alternative in Treating Ankylosing Spondylitis: A Systematic Review Based on Existing Randomized Controlled Trials. Complement Med Res 2019; 26:118-125. [PMID: 30921796 DOI: 10.1159/000494330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 10/05/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND The aim of this systematic review was to evaluate the evidence available on the effects of Baguan therapy for ankylosing spondylitis (AS) patients. MATERIALS AND METHODS The following databases were searched from their inception to August 2018: PubMed, Web of Science, AMED, Cochrane Library, Google, EMBASE, the China National Knowledge Infrastructure databases, Wanfang Data, CiNii, KoreaMed, and the Iranian Registry of Clinical Trials. Randomized controlled trials (RCTs), which assessed the effects of Baguan therapy for AS, were included in our review. The methodological quality of eligible studies was assessed by the Cochrane Collaboration's tool. The RevMan 5.3 software was used for quantitative analysis of RCTs. Heterogeneity was assessed using I2 statistics. RESULTS Four studies were included in our review. The aggregated results indicated that Baguan therapy improved the treatment effect (risk ratio 1.21, 95% CI 1.10-1.34, p < 0.01) as well as physical function (Bath Ankylosing Spondylitis Functional Index) (mean difference -1.56, 95% CI -2.01 to -1.12, p < 0.01) and reduced disease activity (Bath Ankylosing Spondylitis Disease Activity Index) (mean difference -0.71, 95% CI -1.09 to -0.33, p < 0.01) in patients with AS. CONCLUSION Due to the low quality of included trials, it is difficulty to draw the firm conclusion that Baguan therapy may have beneficial effects on AS.
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Affiliation(s)
- Fei Wang
- Department of Orthopedics, Beijing Ping Gu District TCM Hospital, Beijing, China,
| | - Zhong-Gu Tian
- Department of Orthopedics, Beijing Ping Gu District TCM Hospital, Beijing, China
| | - Chao-Hui Lv
- Department of Orthopedics, Beijing Ping Gu District TCM Hospital, Beijing, China
| | - Cheng-Wu Geng
- Department of Orthopedics, Beijing Ping Gu District TCM Hospital, Beijing, China
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Vuerich M, Harshe RP, Robson SC, Longhi MS. Dysregulation of Adenosinergic Signaling in Systemic and Organ-Specific Autoimmunity. Int J Mol Sci 2019; 20:ijms20030528. [PMID: 30691212 PMCID: PMC6386992 DOI: 10.3390/ijms20030528] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/18/2019] [Accepted: 01/22/2019] [Indexed: 12/15/2022] Open
Abstract
Exact causes for autoimmune diseases remain unclear and no cures are available. Breakdown of immunotolerance could set the stage for unfettered immune responses that target self-antigens. Impaired regulatory immune mechanisms could have permissive roles in autoreactivity. Abnormal regulatory immune cell function, therefore, might be a major determinant of the pathogenesis of autoimmune disease. All current treatments are associated with some level of clinical toxicity. Treatment to specifically target dysregulated immunity in these diseases would be a great advance. Extracellular adenosine is a signaling mediator that suppresses inflammation through activation of P1 receptors, most active under pathological conditions. Mounting evidence has linked alterations in the generation of adenosine from extracellular nucleotides by ectonucleotidases, and associated perturbations in purinergic signaling, to the immunological disruption and loss of immunotolerance in autoimmunity. Targeted modulation of the purinergic signaling by either targeting ectonucleotidases or modulating P1 purinergic receptors could therefore restore the balance between autoreactive immune responses; and thereby allow reestablishment of immunotolerance. We review the roles of CD39 and CD73 ectoenzymes in inflammatory states and with the dysregulation of P1 receptor signaling in systemic and organ-specific autoimmunity. Correction of such perturbations could be exploited in potential therapeutic applications.
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Affiliation(s)
- Marta Vuerich
- Department of Anesthesia, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA.
| | - Rasika P Harshe
- Department of Anesthesia, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA.
| | - Simon C Robson
- Department of Anesthesia, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA.
- Division of Gastroenterology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA.
| | - Maria Serena Longhi
- Department of Anesthesia, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA.
- Division of Gastroenterology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA.
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Meng C, Bai R, Zhao Z, Huang G, Jin T, Feng W, Liu W. MMP-8 single-nucleotide polymorphisms are related to ankylosing spondylitis in Chinese Han population. Medicine (Baltimore) 2018; 97:e12136. [PMID: 30170451 PMCID: PMC6392754 DOI: 10.1097/md.0000000000012136] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Ankylosing spondylitis (AS) is an extreme form of inflammatory arthritis which always leads to bony fusion of vertebral and chronic pain of back. A lot of genes including interleukin, matrix metalloproteinases (MMPs), and endoplasmic reticulum aminopeptidase were found associated with AS. MMP family members were involved in the autoimmune disease and orthopedic diseases such as rheumatoid arthritis and osteoarthritis, while few studies concentrated on the correlation between single-nucleotide polymorphisms (SNPs) in MMP and AS. In addition, there is no report on the relationship between MMP-8 and AS. To investigate the association between SNPs in MMP-8 and AS, we recruited 268 patients with AS and 654 healthy people to conduct a case-control study. Five SNPs including rs3740938, rs2012390, rs1940475, rs11225394, and rs11225395 of MMP-8 gene were genotyped. It was found rs3740938 of MMP-8 was associated with an increased risk of AS under the dominant model and additive model after adjustment for gender and age by performing logistic regression analysis (odds ratio [OR] = 1.49, 95% confidence interval [CI] = 1.02-2.18, P = .038; OR = 1.37, 95% CI = 1.01-1.87, P = .042, respectively). Moreover, haplotype "GGTCA" was associated with an increased risk of AS without adjustment for age and gender (OR = 1.75, 95% CI = 1.05-2.92, P = .032), while no positive result was found after adjustment for age and gender. Based on our results, our study indicates significant association between SNPs of MMP-8 and AS risk in a Chinese Han population and these results provide the first evidence that MMP-8 is correlated with AS.
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Affiliation(s)
- Chenyang Meng
- Department of Graduate School, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
- Department of Pediatric Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Rui Bai
- Department of Pediatric Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Zhenqun Zhao
- Department of Pediatric Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Guimei Huang
- Department of Administrative Affairs Office, The Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Tianbo Jin
- School of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Wei Feng
- Department of Pelvic and Acetabular Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Wanlin Liu
- Department of Pediatric Orthopedics, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
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Ma SY, Wang Y, Xu JQ, Zheng L. Cupping therapy for treating ankylosing spondylitis: The evidence from systematic review and meta-analysis. Complement Ther Clin Pract 2018; 32:187-194. [PMID: 30057049 DOI: 10.1016/j.ctcp.2018.07.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 06/16/2018] [Accepted: 07/05/2018] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Cupping therapy has been widely used in Eastern Asia, the Middle East, or Central and North Europe to manage the symptom of ankylosing spondylitis (AS). The aim of this systematic review was to review data from randomized controlled trials (RCTs) of cupping therapy for treating patients with AS. METHODS Databases that were searched from their inception until December 2017 included: MEDLINE, CINAHL, EMBASE, AMED, Cochrane Central Register of Controlled Trials, four Chinese databases [Chinese BioMedical Database, China National Knowledge Infrastructure, Wan-Fang Data, and the Chinese WeiPu Database], KoreaMed, The Korean National Assembly Library, Japana Centra Revuo Medicina (http://www.jamas.gr.jp/) and CiNii. In this systematic review, only RCTs that were related to the effects of cupping therapy on managing AS were included. A quantitative synthesis of RCTs will be conducted using RevMan 5.3 software. Study selection, data extraction, and validation were performed independently by two reviewers. Quantitative analysis of RCTs were performed using RevMan 5.3 software, and cochrane criteria for risk-of-bias were used to assess the methodological quality of the trials. RESULTS A total of 5 RCTs met the inclusion criteria, and most were of low methodological quality. Participants in cupping therapy plus Western medicine group showed significantly greater improvements in the response rate [RR = 1.13, 95%CI (1.06, 1.22), p < 0.01] with low heterogeneity (Chi2 = 2.88, p = 0.41, I2 = 0%). Moreover, when compared with western medicine alone, meta-analysis indicated favorable statistically significant effects of cupping therapy plus western medicine on the Bath Ankylosing Spondylitis Functional Index (BASFI) [MD = -16.63, 95%CI (-17.75, -15.51), p < 0.01] and Bath Ankylosing Disease Activity Index (BASDAI) [MD = -9.93, 95%CI (-10.34, -9.52), p < 0.01], with low heterogeneity (Chi2 = 0.32, p = 0.85, I2 = 0% in BASFI; (Chi2 = 2.46, p = 0.29, I2 = 19% in BASDAI). Furthermore, when compared with western medicine alone, meta-analysis demonstrated statistically significant effects of cupping therapy plus western medicine on the serum level of ESR [MD = -1.28, 95% CI (-1.44, -1.13), p < 0.01] and the serum level of CRP [MD = -3.97, 95%CI (-4.71, -3.22), p < 0.01], with low heterogeneity (Chi2 = 0.50, p = 0.78, I2 = 0% in the serum level of ESR; Chi2 = 0.19, p = 0.91, I2 = 0% in the serum level of CRP). CONCLUSION Taken together, only weak evidence supported the hypothesis that cupping therapy had potential benefits for patients with AS.
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Affiliation(s)
- Shi-Yu Ma
- Department of Pharmacy, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ying Wang
- Department of Traditional Chinese Medicine, Ruijin Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Jia-Qi Xu
- Department of Pharmacy, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lin Zheng
- Department of Bone and Jount Surgery, Shanghai GuangHua Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China.
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Identification of novel thiazolo[5,4-d]pyrimidine derivatives as human A1 and A2A adenosine receptor antagonists/inverse agonists. Bioorg Med Chem 2018; 26:3688-3695. [DOI: 10.1016/j.bmc.2018.05.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 12/31/2022]
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Ankylosing spondylitis monocyte-derived macrophages express increased level of A2A adenosine receptor and decreased level of ectonucleoside triphosphate diphosphohydrolase-1 (CD39), A1 and A2B adenosine receptors. Clin Rheumatol 2018. [DOI: 10.1007/s10067-018-4055-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Betti M, Catarzi D, Varano F, Falsini M, Varani K, Vincenzi F, Dal Ben D, Lambertucci C, Colotta V. The aminopyridine-3,5-dicarbonitrile core for the design of new non-nucleoside-like agonists of the human adenosine A 2B receptor. Eur J Med Chem 2018. [PMID: 29525433 DOI: 10.1016/j.ejmech.2018.02.081] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A new series of amino-3,5-dicyanopyridines (3-28) as analogues of the adenosine hA2B receptor agonist BAY60-6583 (compound 1) was synthesized. All the compounds that interact with the hA2B adenosine receptor display EC50 values in the range 9-350 nM behaving as partial agonists, with the only exception being the 2-{[4-(4-acetamidophenyl)-6-amino-3,5-dicyanopyridin-2-yl]thio}acetamide (8) which shows a full agonist profile. Moreover, the 2-[(1H-imidazol-2-yl)methylthio)]-6-amino-4-(4-cyclopropylmethoxy-phenyl)pyridine-3,5-dicarbonitrile (15) turns out to be 3-fold more active than 1 although less selective. This result can be considered a real breakthrough due to the currently limited number of non-adenosine hA2B AR agonists reported in literature. To simulate the binding mode of nucleoside and non-nucleoside agonists at the hA2B AR, molecular docking studies were performed at homology models of this AR subtype developed by using two crystal structures of agonist-bound A2A AR as templates. These investigations allowed us to represent a hypothetical binding mode of hA2B receptor agonists belonging to the amino-3,5-dicyanopyridine series and to rationalize the observed SAR.
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Affiliation(s)
- Marco Betti
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy
| | - Daniela Catarzi
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy.
| | - Flavia Varano
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy
| | - Matteo Falsini
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy
| | - Katia Varani
- Dipartimento di Scienze Mediche, Sezione di Farmacologia, Università degli Studi di Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy
| | - Fabrizio Vincenzi
- Dipartimento di Scienze Mediche, Sezione di Farmacologia, Università degli Studi di Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy
| | - Diego Dal Ben
- Scuola di Scienze del Farmaco e dei Prodotti della Salute, Università degli Studi di Camerino, Via S. Agostino 1, 62032 Camerino, MC, Italy
| | - Catia Lambertucci
- Scuola di Scienze del Farmaco e dei Prodotti della Salute, Università degli Studi di Camerino, Via S. Agostino 1, 62032 Camerino, MC, Italy
| | - Vittoria Colotta
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff, 6, 50019 Sesto Fiorentino, Italy
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Ni Y, Jiang C. Identification of potential target genes for ankylosing spondylitis treatment. Medicine (Baltimore) 2018; 97:e9760. [PMID: 29465556 PMCID: PMC5842021 DOI: 10.1097/md.0000000000009760] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 01/09/2018] [Accepted: 01/11/2018] [Indexed: 12/17/2022] Open
Abstract
This study aimed to identify the potential target genes for the treatment of ankylosing spondylitis (AS).Dataset GSE25101 was downloaded from Gene Expression Omnibus, including 16 AS and 16 normal control blood samples. Differentially expressed genes (DEGs) were identified using unmatched t-test in limma package with adjusted P < .05. Gene ontology-biological process (GO-BP) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were conducted using multifaceted analysis tool for human transcriptome. Protein-protein interaction (PPI) network was constructed using STRING and Cytoscape, and module analysis was performed using MCODE plug-in. Webgestal was utilized to predict transcriptional factor (TF)-microRNA-target network and Comparative Toxicogenomics Database (CTD) was applied to predict chemical-target network.A total of 334 DEGs were identified, including 136 upregulated genes and 198 downregulated genes. According to STRING, a PPI network was constructed and 1 significant clustered module was screen out with score = 6.33. MAPK7 (degree = 11) and NDUFS4 (degree = 10) were 2 important nodes in PPI network, and both of them were significantly enriched in cAMP mediated signaling pathway (P = 2.02E-02). MAPK7 could be regulated by NFY. Both MAPK7 and NDUFS4 were 2 potential targets for Indomethacin.MAPK7 and NDUFS4 played important roles in the pathogenesis of AS via cAMP mediated signaling pathway. Both of them could be targeted by Indomethacin.
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Affiliation(s)
| | - Chengrui Jiang
- Department of Rheumatology and Immunology, Jining No.1 People's Hospital, Jining, Shandong Province, China
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Arruda MA, Stoddart LA, Gherbi K, Briddon SJ, Kellam B, Hill SJ. A Non-imaging High Throughput Approach to Chemical Library Screening at the Unmodified Adenosine-A 3 Receptor in Living Cells. Front Pharmacol 2017; 8:908. [PMID: 29321740 PMCID: PMC5733478 DOI: 10.3389/fphar.2017.00908] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 11/28/2017] [Indexed: 12/29/2022] Open
Abstract
Recent advances in fluorescent ligand technology have enabled the study of G protein-coupled receptors in their native environment without the need for genetic modification such as addition of N-terminal fluorescent or bioluminescent tags. Here, we have used a non-imaging plate reader (PHERAstar FS) to monitor the binding of fluorescent ligands to the human adenosine-A3 receptor (A3AR; CA200645 and AV039), stably expressed in CHO-K1 cells. To verify that this method was suitable for the study of other GPCRs, assays at the human adenosine-A1 receptor, and β1 and β2 adrenoceptors (β1AR and β2AR; BODIPY-TMR-CGP-12177) were also carried out. Affinity values determined for the binding of the fluorescent ligands CA200645 and AV039 to A3AR for a range of classical adenosine receptor antagonists were consistent with A3AR pharmacology and correlated well (R2 = 0.94) with equivalent data obtained using a confocal imaging plate reader (ImageXpress Ultra). The binding of BODIPY-TMR-CGP-12177 to the β1AR was potently inhibited by low concentrations of the β1-selective antagonist CGP 20712A (pKi 9.68) but not by the β2-selective antagonist ICI 118551(pKi 7.40). Furthermore, in experiments conducted in CHO K1 cells expressing the β2AR this affinity order was reversed with ICI 118551 showing the highest affinity (pKi 8.73) and CGP20712A (pKi 5.68) the lowest affinity. To determine whether the faster data acquisition of the non-imaging plate reader (~3 min per 96-well plate) was suitable for high throughput screening (HTS), we screened the LOPAC library for inhibitors of the binding of CA200645 to the A3AR. From the initial 1,263 compounds evaluated, 67 hits (defined as those that inhibited the total binding of 25 nM CA200645 by ≥40%) were identified. All compounds within the library that had medium to high affinity for the A3AR (pKi ≥6) were successfully identified. We found three novel compounds in the library that displayed unexpected sub-micromolar affinity for the A3AR. These were K114 (pKi 6.43), retinoic acid p-hydroxyanilide (pKi 6.13) and SU 6556 (pKi 6.17). Molecular docking of these latter three LOPAC library members provided a plausible set of binding poses within the vicinity of the established orthosteric A3AR binding pocket. A plate reader based library screening using an untagged receptor is therefore possible using fluorescent ligand opening the possibility of its use in compound screening at natively expressed receptors.
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Affiliation(s)
- Maria Augusta Arruda
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Medical School, Queen's Medical Centre, University of Nottingham, Nottingham, United Kingdom
- Centre of Membrane Proteins and Receptors, University of Birmingham and University of Nottingham, The Midlands, United Kingdom
- Vice-Diretoria de Ensino, Pesquisa e Inovacao, Farmanguinhos, Fiocruz, Rio de Janeiro, Brazil
| | - Leigh A. Stoddart
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Medical School, Queen's Medical Centre, University of Nottingham, Nottingham, United Kingdom
- Centre of Membrane Proteins and Receptors, University of Birmingham and University of Nottingham, The Midlands, United Kingdom
| | - Karolina Gherbi
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Medical School, Queen's Medical Centre, University of Nottingham, Nottingham, United Kingdom
- Centre of Membrane Proteins and Receptors, University of Birmingham and University of Nottingham, The Midlands, United Kingdom
| | - Stephen J. Briddon
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Medical School, Queen's Medical Centre, University of Nottingham, Nottingham, United Kingdom
- Centre of Membrane Proteins and Receptors, University of Birmingham and University of Nottingham, The Midlands, United Kingdom
| | - Barrie Kellam
- Centre for Biomolecular Sciences, School of Pharmacy, University of Nottingham, Nottingham, United Kingdom
| | - Stephen J. Hill
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Medical School, Queen's Medical Centre, University of Nottingham, Nottingham, United Kingdom
- Centre of Membrane Proteins and Receptors, University of Birmingham and University of Nottingham, The Midlands, United Kingdom
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