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Schwartzman JD, McCall M, Ghattas Y, Pugazhendhi AS, Wei F, Ngo C, Ruiz J, Seal S, Coathup MJ. Multifunctional scaffolds for bone repair following age-related biological decline: Promising prospects for smart biomaterial-driven technologies. Biomaterials 2024; 311:122683. [PMID: 38954959 DOI: 10.1016/j.biomaterials.2024.122683] [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: 04/08/2024] [Revised: 06/09/2024] [Accepted: 06/23/2024] [Indexed: 07/04/2024]
Abstract
The repair of large bone defects due to trauma, disease, and infection can be exceptionally challenging in the elderly. Despite best clinical practice, bone regeneration within contemporary, surgically implanted synthetic scaffolds is often problematic, inconsistent, and insufficient where additional osteobiological support is required to restore bone. Emergent smart multifunctional biomaterials may drive important and dynamic cellular crosstalk that directly targets, signals, stimulates, and promotes an innate bone repair response following age-related biological decline and when in the presence of disease or infection. However, their role remains largely undetermined. By highlighting their mechanism/s and mode/s of action, this review spotlights smart technologies that favorably align in their conceivable ability to directly target and enhance bone repair and thus are highly promising for future discovery for use in the elderly. The four degrees of interactive scaffold smartness are presented, with a focus on bioactive, bioresponsive, and the yet-to-be-developed autonomous scaffold activity. Further, cell- and biomolecular-assisted approaches were excluded, allowing for contemporary examination of the capabilities, demands, vision, and future requisites of next-generation biomaterial-induced technologies only. Data strongly supports that smart scaffolds hold significant promise in the promotion of bone repair in patients with a reduced osteobiological response. Importantly, many techniques have yet to be tested in preclinical models of aging. Thus, greater clarity on their proficiency to counteract the many unresolved challenges within the scope of aging bone is highly warranted and is arguably the next frontier in the field. This review demonstrates that the use of multifunctional smart synthetic scaffolds with an engineered strategy to circumvent the biological insufficiencies associated with aging bone is a viable route for achieving next-generation therapeutic success in the elderly population.
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Affiliation(s)
| | - Max McCall
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Yasmine Ghattas
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Abinaya Sindu Pugazhendhi
- College of Medicine, University of Central Florida, Orlando, FL, USA; Biionix Cluster, University of Central Florida, Orlando, FL, USA
| | - Fei Wei
- College of Medicine, University of Central Florida, Orlando, FL, USA; Biionix Cluster, University of Central Florida, Orlando, FL, USA
| | - Christopher Ngo
- College of Medicine, University of Central Florida, Orlando, FL, USA; Biionix Cluster, University of Central Florida, Orlando, FL, USA
| | - Jonathan Ruiz
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Sudipta Seal
- College of Medicine, University of Central Florida, Orlando, FL, USA; Biionix Cluster, University of Central Florida, Orlando, FL, USA; Advanced Materials Processing and Analysis Centre, Nanoscience Technology Center (NSTC), Materials Science and Engineering, College of Medicine, University of Central Florida, USA, Orlando, FL
| | - Melanie J Coathup
- College of Medicine, University of Central Florida, Orlando, FL, USA; Biionix Cluster, University of Central Florida, Orlando, FL, USA.
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Modi H, Baranger DAA, Paul SE, Gorelik AJ, Hornstein A, Balbona JV, Agrawal A, Bijsterbosch JD, Bogdan R. Associations between prenatal caffeine exposure and child development: Longitudinal results from the Adolescent Brain Cognitive Development (ABCD) Study. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.06.18.24309117. [PMID: 38946960 PMCID: PMC11213099 DOI: 10.1101/2024.06.18.24309117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Objective Though caffeine use during pregnancy is common, its longitudinal associations with child behavioral and physical health outcomes remain poorly understood. Here, we estimated associations between prenatal caffeine exposure, body mass index (BMI), and behavior as children enter adolescence. Method Longitudinal data and caregiver-reported prenatal caffeine exposure were obtained from the ongoing Adolescent Brain and Cognitive Development (ABCD) SM Study, which recruited 11,875 children aged 9-11 years at baseline from 21 sites across the United States starting June 1, 2016. Prenatal caffeine exposure was analyzed as a 4-level categorical variable, and further group contrasts were used to characterize "any exposure" and "daily exposure" groups. Outcomes included psychopathology characteristics in children, sleep problems, and BMI. Potentially confounding covariates included familial (e.g., income, familial psychopathology), pregnancy (e.g., prenatal substance exposure), and child (e.g., caffeine use) variables. Results Among 10,873 children (5,686 boys [52.3%]; mean [SD] age, 9.9 [0.6] years) with nonmissing prenatal caffeine exposure data, 6,560 (60%) were exposed to caffeine prenatally. Relative to no exposure, daily caffeine exposure was associated with higher child BMI (β=0.08; FDR-corrected p=0.02), but was not associated with child behavior. Those exposed to two or more cups of caffeine daily (n=1,028) had greater sleep problems than those with lower/no exposure (β>0.92; FDR-corrected p<0.04). Conclusion Daily prenatal caffeine exposure is associated with heightened childhood BMI, and when used multiple times a day greater sleep problems even after accounting for potential confounds. Whether this relationship is a consequence of prenatal caffeine exposure or its correlated factors remains unknown.
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Affiliation(s)
- Hailey Modi
- Department of Psychological and Brain Sciences, Washington University in Saint Louis, St. Louis, MO, USA
- Department of Psychiatry, Washington University in Saint Louis
| | - David AA Baranger
- Department of Psychological and Brain Sciences, Washington University in Saint Louis, St. Louis, MO, USA
| | - Sarah E Paul
- Department of Psychological and Brain Sciences, Washington University in Saint Louis, St. Louis, MO, USA
| | - Aaron J Gorelik
- Department of Psychological and Brain Sciences, Washington University in Saint Louis, St. Louis, MO, USA
| | - Alana Hornstein
- Department of Psychological and Brain Sciences, Washington University in Saint Louis, St. Louis, MO, USA
| | - Jared V Balbona
- Department of Psychiatry, Washington University in Saint Louis
| | - Arpana Agrawal
- Department of Psychiatry, Washington University in Saint Louis
| | | | - Ryan Bogdan
- Department of Psychological and Brain Sciences, Washington University in Saint Louis, St. Louis, MO, USA
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Gao ZG, Haddad M, Jacobson KA. A 2B adenosine receptor signaling and regulation. Purinergic Signal 2024:10.1007/s11302-024-10025-y. [PMID: 38833181 DOI: 10.1007/s11302-024-10025-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 05/20/2024] [Indexed: 06/06/2024] Open
Abstract
The A2B adenosine receptor (A2BR) is one of the four adenosine-activated G protein-coupled receptors. In addition to adenosine, protein kinase C (PKC) was recently found to activate the A2BR. The A2BR is coupled to both Gs and Gi, as well as Gq proteins in some cell types. Many primary cells and cell lines, such as bladder and breast cancer, bronchial smooth muscle, skeletal muscle, and fat cells, express the A2BR endogenously at high levels, suggesting its potentially important role in asthma, cancer, diabetes, and other conditions. The A2BR has been characterized as both pro- and anti-inflammatory, inducing cell type-dependent secretion of IL-6, IL-8, and IL-10. Theophylline and enprofylline have long been used for asthma treatment, although it is still not entirely clear if their A2BR antagonism contributes to their therapeutic effects or side effects. The A2BR is required in ischemic cardiac preconditioning by adenosine. Both A2BR and protein kinase C (PKC) contribute to cardioprotection, and both modes of A2BR signaling can be blocked by A2BR antagonists. Inhibitors of PKC and A2BR are in clinical cancer trials. Sulforaphane and other isothiocyanates from cruciferous vegetables such as broccoli and cauliflower have been reported to inhibit A2BR signaling via reaction with an intracellular A2BR cysteine residue (C210). A full, A2BR-selective agonist, critical to elucidate many controversial roles of the A2BR, is still not available, although agonist-bound A2BR structures have recently been reported.
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Affiliation(s)
- Zhan-Guo Gao
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, NIDDK, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD, 20892, USA.
| | - Mansour Haddad
- Faculty of Pharmacy, Yarmouk University, Irbid, 21163, Jordan
| | - Kenneth A Jacobson
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, NIDDK, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD, 20892, USA.
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4
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Zhu W, Hong Y, Tong Z, He X, Li Y, Wang H, Gao X, Song P, Zhang X, Wu X, Tan Z, Huang W, Liu Z, Bao Y, Ma J, Zheng N, Xie C, Ke X, Zhou W, Jia W, Li M, Zhong J, Sheng L, Li H. Activation of hepatic adenosine A1 receptor ameliorates MASH via inhibiting SREBPs maturation. Cell Rep Med 2024; 5:101477. [PMID: 38508143 PMCID: PMC10983109 DOI: 10.1016/j.xcrm.2024.101477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 12/10/2023] [Accepted: 02/21/2024] [Indexed: 03/22/2024]
Abstract
Metabolic (dysfunction)-associated steatohepatitis (MASH) is the advanced stage of metabolic (dysfunction)-associated fatty liver disease (MAFLD) lacking approved clinical drugs. Adenosine A1 receptor (A1R), belonging to the G-protein-coupled receptors (GPCRs) superfamily, is mainly distributed in the central nervous system and major peripheral organs with wide-ranging physiological functions; however, the exact role of hepatic A1R in MAFLD remains unclear. Here, we report that liver-specific depletion of A1R aggravates while overexpression attenuates diet-induced metabolic-associated fatty liver (MAFL)/MASH in mice. Mechanistically, activation of hepatic A1R promotes the competitive binding of sterol-regulatory element binding protein (SREBP) cleavage-activating protein (SCAP) to sequestosome 1 (SQSTM1), rather than protein kinase A (PKA) leading to SCAP degradation in lysosomes. Reduced SCAP hinders SREBP1c/2 maturation and thus suppresses de novo lipogenesis and inflammation. Higher hepatic A1R expression is observed in patients with MAFL/MASH and high-fat diet (HFD)-fed mice, which is supposed to be a physiologically adaptive response because A1R agonists attenuate MAFL/MASH in an A1R-dependent manner. These results highlight that hepatic A1R is a potential target for MAFL/MASH therapy.
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Affiliation(s)
- Weize Zhu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ying Hong
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhaowei Tong
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xiaofang He
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yan Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hao Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xinxin Gao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Pengtao Song
- Department of Pathology, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xianshan Zhang
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xiaochang Wu
- Department of Hepatobiliary Surgery, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Zhenhua Tan
- Department of Hepatobiliary Surgery, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Wenjin Huang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zekun Liu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yiyang Bao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Junli Ma
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ningning Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Cen Xie
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xisong Ke
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wen Zhou
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural, Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Wei Jia
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China
| | - Mingxiao Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Jing Zhong
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China.
| | - Lili Sheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Houkai Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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5
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Stepanova M, Aherne CM. Adenosine in Intestinal Epithelial Barrier Function. Cells 2024; 13:381. [PMID: 38474346 DOI: 10.3390/cells13050381] [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: 12/23/2023] [Revised: 02/13/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024] Open
Abstract
At the intestinal front, several lines of defense are in place to resist infection and injury, the mucus layer, gut microbiome and strong epithelial junctions, to name a few. Their collaboration creates a resilient barrier. In intestinal disorders, such as inflammatory bowel disease (IBD), barrier function is compromised, which results in rampant inflammation and tissue injury. In response to the destruction, the intestinal epithelium releases adenosine, a small but powerful nucleoside that functions as an alarm signal. Amidst the chaos of inflammation, adenosine aims to restore order. Within the scope of its effects is the ability to regulate intestinal epithelial barrier integrity. This review aims to define the contributions of adenosine to mucus production, microbiome-dependent barrier protection, tight junction dynamics, chloride secretion and acid-base balance to reinforce its importance in the intestinal epithelial barrier.
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Affiliation(s)
- Mariya Stepanova
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
- School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - Carol M Aherne
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
- School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
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6
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Evans JV, Suman S, Goruganthu MUL, Tchekneva EE, Guan S, Arasada RR, Antonucci A, Piao L, Ilgisonis I, Bobko AA, Driesschaert B, Uzhachenko RV, Hoyd R, Samouilov A, Amann J, Wu R, Wei L, Pallerla A, Ryzhov SV, Feoktistov I, Park KP, Kikuchi T, Castro J, Ivanova AV, Kanagasabai T, Owen DH, Spakowicz DJ, Zweier JL, Carbone DP, Novitskiy SV, Khramtsov VV, Shanker A, Dikov MM. Improving combination therapies: targeting A2B-adenosine receptor to modulate metabolic tumor microenvironment and immunosuppression. J Natl Cancer Inst 2023; 115:1404-1419. [PMID: 37195421 PMCID: PMC10637048 DOI: 10.1093/jnci/djad091] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 11/18/2022] [Accepted: 05/12/2023] [Indexed: 05/18/2023] Open
Abstract
BACKGROUND We investigated the role of A2B-adenosine receptor in regulating immunosuppressive metabolic stress in the tumor microenvironment. Novel A2B-adenosine receptor antagonist PBF-1129 was tested for antitumor activity in mice and evaluated for safety and immunologic efficacy in a phase I clinical trial of patients with non-small cell lung cancer. METHODS The antitumor efficacy of A2B-adenosine receptor antagonists and their impact on the metabolic and immune tumor microenvironment were evaluated in lung, melanoma, colon, breast, and epidermal growth factor receptor-inducible transgenic cancer models. Employing electron paramagnetic resonance, we assessed changes in tumor microenvironment metabolic parameters, including pO2, pH, and inorganic phosphate, during tumor growth and evaluated the immunologic effects of PBF-1129, including its pharmacokinetics, safety, and toxicity, in patients with non-small cell lung cancer. RESULTS Levels of metabolic stress correlated with tumor growth, metastasis, and immunosuppression. Tumor interstitial inorganic phosphate emerged as a correlative and cumulative measure of tumor microenvironment stress and immunosuppression. A2B-adenosine receptor inhibition alleviated metabolic stress, downregulated expression of adenosine-generating ectonucleotidases, increased expression of adenosine deaminase, decreased tumor growth and metastasis, increased interferon γ production, and enhanced the efficacy of antitumor therapies following combination regimens in animal models (anti-programmed cell death 1 protein vs anti-programmed cell death 1 protein plus PBF-1129 treatment hazard ratio = 11.74 [95% confidence interval = 3.35 to 41.13], n = 10, P < .001, 2-sided F test). In patients with non-small cell lung cancer, PBF-1129 was well tolerated, with no dose-limiting toxicities; demonstrated pharmacologic efficacy; modulated the adenosine generation system; and improved antitumor immunity. CONCLUSIONS Data identify A2B-adenosine receptor as a valuable therapeutic target to modify metabolic and immune tumor microenvironment to reduce immunosuppression, enhance the efficacy of immunotherapies, and support clinical application of PBF-1129 in combination therapies.
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Affiliation(s)
- Jason V Evans
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
- Department of Pathology, Anatomy, and Laboratory Medicine, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Shankar Suman
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Mounika Uttam L Goruganthu
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Elena E Tchekneva
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Shuxiao Guan
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Rajeswara Rao Arasada
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
- Pfizer Inc, New York, NY, USA
| | - Anneliese Antonucci
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Longzhu Piao
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Irina Ilgisonis
- N.V. Sklifosovsky Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Andrey A Bobko
- In Vivo Multifunctional Magnetic Resonance Center, West Virginia University, Morgantown, WV, USA
- Department of Biochemistry, West Virginia University, Morgantown, WV, USA
| | - Benoit Driesschaert
- In Vivo Multifunctional Magnetic Resonance Center, West Virginia University, Morgantown, WV, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, WV, USA
| | - Roman V Uzhachenko
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, School of Medicine, Meharry Medical College, Nashville, TN, USA
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Rebecca Hoyd
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Alexandre Samouilov
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Joseph Amann
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Ruohan Wu
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Lai Wei
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Aaditya Pallerla
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Sergey V Ryzhov
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Igor Feoktistov
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Kyungho P Park
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Takefumi Kikuchi
- Division of Gastroenterology, Department of Internal Medicine, Sapporo Shirakabadai Hospital, Sapporo, Japan
| | | | - Alla V Ivanova
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, School of Medicine, Meharry Medical College, Nashville, TN, USA
- School of Graduate Studies, Meharry Medical College, Nashville, TN, USA
| | - Thanigaivelan Kanagasabai
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, School of Medicine, Meharry Medical College, Nashville, TN, USA
- School of Graduate Studies, Meharry Medical College, Nashville, TN, USA
| | - Dwight H Owen
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Daniel J Spakowicz
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Jay L Zweier
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - David P Carbone
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Sergey V Novitskiy
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Valery V Khramtsov
- In Vivo Multifunctional Magnetic Resonance Center, West Virginia University, Morgantown, WV, USA
- Department of Biochemistry, West Virginia University, Morgantown, WV, USA
| | - Anil Shanker
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, School of Medicine, Meharry Medical College, Nashville, TN, USA
- School of Graduate Studies, Meharry Medical College, Nashville, TN, USA
- Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University, Nashville, TN, USA
| | - Mikhail M Dikov
- Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
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Cen XQ, Li P, Wang B, Chen X, Zhao Y, Yang N, Peng Y, Li CH, Ning YL, Zhou YG. Knockdown of adenosine A2A receptors in hippocampal neurons prevents post-TBI fear memory retrieval. Exp Neurol 2023; 364:114378. [PMID: 36907351 DOI: 10.1016/j.expneurol.2023.114378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/27/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
The formation of fear memory is crucial in emotional disorders such as PTSD and anxiety. Traumatic brain injury (TBI) can cause emotional disorders with dysregulated fear memory formation; however, their cross-interaction remains unclear and hurdled the treatment against TBI-related emotional disorders. While adenosine A2A receptor(A2AR) contributes to the physiological regulation of fear memory, this study aimed to evaluate the A2AR role and possible mechanisms in post-TBI fear memory formation using a craniocerebral trauma model, genetically modified A2AR mutant mice, and pharmacological A2AR agonist CGS21680 and antagonist ZM241385. Our finding showed (i) TBI enhanced mice freezing levels (fear memory) at seven days post-TBI; (ii) The A2AR agonist CGS21680 enhanced the post-TBI freezing levels; conversely, the A2AR antagonist ZM241385 reduced mice freezing level; further (iii) Genetic knockdown of neuronal A2AR in the hippocampal CA1, CA3, and DG regions reduced post-TBI freezing levels, while A2AR knockout in DG region yielded the most reduction in fear memory; finally, (iv) AAV-CaMKII-Cre virus-mediated DG deletion of A2AR on excitatory neurons led to a significant decreased freezing levels post-TBI. These findings indicate that brain trauma increases fear memory retrieval post-TBI, and A2AR on DG excitatory neurons plays a crucial role in this process. Importantly, inhibition of A2AR attenuates fear memory enhancement, which provides a new strategy to prevent fear memory formation/enhancement after TBI.
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Affiliation(s)
- Xiao-Qing Cen
- The College of Bioengineering, Chongqing University, No.174 Shazheng Street, Shapingba District, Chongqing 400044, China; Department of Army Occupational Disease, State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery and Daping Hospital, Army Medical University, Chongqing, China
| | - Ping Li
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery and Daping Hospital, Army Medical University, Chongqing, China; Institute of Brain and Intelligence, Army Medical University, Chongqing, China
| | - Bo Wang
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery and Daping Hospital, Army Medical University, Chongqing, China
| | - Xing Chen
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery and Daping Hospital, Army Medical University, Chongqing, China
| | - Yan Zhao
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery and Daping Hospital, Army Medical University, Chongqing, China
| | - Nan Yang
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery and Daping Hospital, Army Medical University, Chongqing, China
| | - Yan Peng
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery and Daping Hospital, Army Medical University, Chongqing, China
| | - Chang-Hong Li
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery and Daping Hospital, Army Medical University, Chongqing, China
| | - Ya-Lei Ning
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery and Daping Hospital, Army Medical University, Chongqing, China; Institute of Brain and Intelligence, Army Medical University, Chongqing, China.
| | - Yuan-Guo Zhou
- Department of Army Occupational Disease, State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery and Daping Hospital, Army Medical University, Chongqing, China; Institute of Brain and Intelligence, Army Medical University, Chongqing, China.
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8
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Saecker L, Häberlein H, Franken S. Investigation of adenosine A1 receptor-mediated β-arrestin 2 recruitment using a split-luciferase assay. Front Pharmacol 2023; 14:1172551. [PMID: 37324481 PMCID: PMC10268005 DOI: 10.3389/fphar.2023.1172551] [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: 02/23/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023] Open
Abstract
Background: Adenosine A1 receptor (A1AR) plays a prominent role in neurological and cardiac diseases and inflammatory processes. Its endogenous ligand adenosine is known to be one of the key players in the sleep-wake cycle. Like other G protein-coupled receptors (GPCRs), stimulation of A1AR leads to the recruitment of arrestins in addition to the activation of G proteins. So far, little is known about the role of these proteins in signal transduction and regulation of A1AR compared to the activation of G proteins. In this work, we characterized a live cell assay for A1AR-mediated β-arrestin 2 recruitment. We have applied this assay to a set of different compounds that interact with this receptor. Methods: Based on NanoBit® technology, a protein complementation assay was developed in which the A1AR is coupled to the large part of the nanoluciferase (LgBiT), whereas its small part (SmBiT) is fused to the N-terminus of β-arrestin 2. Stimulation of A1AR results in the recruitment of β-arrestin 2 and subsequent complementation of a functional nanoluciferase. For comparison, corresponding data on the effect of receptor stimulation on intracellular cAMP levels were collected for some data sets using the GloSensor™ assay. Results: The assay gives highly reproducible results with a very good signal-to-noise ratio. Capadenoson, in contrast to adenosine, CPA, or NECA, shows only partial agonism in this assay with respect to the recruitment of β-arrestin 2, whereas it shows full agonism in the case of the inhibitory effect of A1AR on cAMP production. By using a GRK2 inhibitor, it becomes clear that the recruitment is at least partially dependent on the phosphorylation of the receptor by this kinase. Interestingly, this was also the first time that we demonstrate the A1AR-mediated recruitment of β-arrestin 2 by stimulation with a valerian extract. Conclusion: The presented assay is a useful tool for the quantitative study of A1AR-mediated β-arrestin 2 recruitment. It allows data collection for stimulatory, inhibitory, and modulatory substances and is also suitable for more complex substance mixtures such as valerian extract.
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9
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Tacchini M, Sacchetti G, Guerrini A, Paganetto G. Mycochemicals against Cancer Stem Cells. Toxins (Basel) 2023; 15:360. [PMID: 37368660 DOI: 10.3390/toxins15060360] [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: 03/23/2023] [Revised: 05/08/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
Since ancient times, mushrooms have been considered valuable allies of human well-being both from a dietary and medicinal point of view. Their essential role in several traditional medicines is explained today by the discovery of the plethora of biomolecules that have shown proven efficacy for treating various diseases, including cancer. Numerous studies have already been conducted to explore the antitumoural properties of mushroom extracts against cancer. Still, very few have reported the anticancer properties of mushroom polysaccharides and mycochemicals against the specific population of cancer stem cells (CSCs). In this context, β-glucans are relevant in modulating immunological surveillance against this subpopulation of cancer cells within tumours. Small molecules, less studied despite their spread and assortment, could exhibit the same importance. In this review, we discuss several pieces of evidence of the association between β-glucans and small mycochemicals in modulating biological mechanisms which are proven to be involved with CSCs development. Experimental evidence and an in silico approach are evaluated with the hope of contributing to future strategies aimed at the direct study of the action of these mycochemicals on this subpopulation of cancer cells.
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Affiliation(s)
- Massimo Tacchini
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy
| | - Gianni Sacchetti
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy
| | - Alessandra Guerrini
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy
| | - Guglielmo Paganetto
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy
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10
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Jiang X, Wu X, Xiao Y, Wang P, Zheng J, Wu X, Jin Z. The ectonucleotidases CD39 and CD73 on T cells: The new pillar of hematological malignancy. Front Immunol 2023; 14:1110325. [PMID: 36776866 PMCID: PMC9911447 DOI: 10.3389/fimmu.2023.1110325] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/12/2023] [Indexed: 01/28/2023] Open
Abstract
Hematological malignancy develops and applies various mechanisms to induce immune escape, in part through an immunosuppressive microenvironment. Adenosine is an immunosuppressive metabolite produced at high levels within the tumor microenvironment (TME). Adenosine signaling through the A2A receptor expressed on immune cells, such as T cells, potently dampens immune responses. Extracellular adenosine generated by ectonucleoside triphosphate diphosphohydrolase-1 (CD39) and ecto-5'-nucleotidase (CD73) molecules is a newly recognized 'immune checkpoint mediator' and leads to the identification of immunosuppressive adenosine as an essential regulator in hematological malignancies. In this Review, we provide an overview of the detailed distribution and function of CD39 and CD73 ectoenzymes in the TME and the effects of CD39 and CD73 inhibition on preclinical hematological malignancy data, which provides insights into the potential clinical applications for immunotherapy.
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Affiliation(s)
- Xuan Jiang
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaofang Wu
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Yuxi Xiao
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Penglin Wang
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Jiamian Zheng
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiuli Wu
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou, China,*Correspondence: Xiuli Wu, ; Zhenyi Jin,
| | - Zhenyi Jin
- Department of Pathology, School of Medicine, Jinan University, Guangzhou, China,*Correspondence: Xiuli Wu, ; Zhenyi Jin,
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11
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Rabie MA, Ibrahim HI, Nassar NN, Atef RM. Adenosine A 1 receptor agonist, N6-cyclohexyladenosine, attenuates Huntington's disease via stimulation of TrKB/PI3K/Akt/CREB/BDNF pathway in 3-nitropropionic acid rat model. Chem Biol Interact 2023; 369:110288. [PMID: 36509115 DOI: 10.1016/j.cbi.2022.110288] [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: 08/15/2022] [Revised: 11/08/2022] [Accepted: 11/24/2022] [Indexed: 12/13/2022]
Abstract
Huntington's disease (HD) is an inherited neurodegenerative disease characterized by progressive motor, behavioral, and cognitive impairments. Intrastriatal injection of 3- nitropropionic acid (3NP) was used to induce HD-like symptoms by inhibiting succinate dehydrogenase enzyme (SDH) in the mitochondrial complex II. The adenosine A1 receptor has long been known to have a crucial role in neuroprotection, mainly by blocking Ca2+ influx, which causes inhibition of glutamate (Glu) and a decline in its excitatory effects at the postsynaptic level. To this end, this study investigated the possible involvement of TrKB/PI3K/Akt/CREB/BDNF pathway in mediating protection afforded by the central N6-cyclohexyladenosine (CHA), an adenosine A1 receptor agonist. A single intrastriatal CHA injection (6.25 nM/1 μL); 45min after 3-NP injection, attenuated neuronal death, and improved cognitive and motor deficits caused by 3-NP neurotoxin. This effect was shown to parallel an enhanced activation of PI3K/Akt/CREB/BDNF axis as well as boosting pERK1/2 levels. Moreover, CHA attenuated neuroinflammatory and oxidative stress status via reducing NFκB p65, TNFα and iNOS contents and increasing SOD. Furthermore, immunohistochemical data showed a reduction in the glial fibrillary acidic protein (GFAP) immunoreactivity to a marker for astrocyte and microglia activation following CHA treatment. The results of this study suggest that CHA may have protective effect against HD via modulating oxidative stress, excitotoxic and inflammatory pathways.
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Affiliation(s)
- Mostafa A Rabie
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Κasr El-Aini Str., 11562, Cairo, Egypt
| | - Heba I Ibrahim
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Κasr El-Aini Str., 11562, Cairo, Egypt
| | - Noha N Nassar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Κasr El-Aini Str., 11562, Cairo, Egypt
| | - Reham M Atef
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Κasr El-Aini Str., 11562, Cairo, Egypt.
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12
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Kumar K, Singh N, Yadav HN, Maslov L, Jaggi AS. Endless Journey of Adenosine Signaling in Cardioprotective Mechanism of Conditioning Techniques: Clinical Evidence. Curr Cardiol Rev 2023; 19:56-71. [PMID: 37309766 PMCID: PMC10636797 DOI: 10.2174/1573403x19666230612112259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/10/2023] [Accepted: 05/11/2023] [Indexed: 06/14/2023] Open
Abstract
Myocardial ischemic injury is a primary cause of death among various cardiovascular disorders. The condition occurs due to an interrupted supply of blood and vital nutrients (necessary for normal cellular activities and viability) to the myocardium, eventually leading to damage. Restoration of blood supply to ischemic tissue is noted to cause even more lethal reperfusion injury. Various strategies, including some conditioning techniques, like preconditioning and postconditioning, have been developed to check the detrimental effects of reperfusion injury. Many endogenous substances have been proposed to act as initiators, mediators, and end effectors of these conditioning techniques. Substances, like adenosine, bradykinin, acetylcholine, angiotensin, norepinephrine, opioids, etc., have been reported to mediate cardioprotective activity. Among these agents, adenosine has been widely studied and suggested to have the most pronounced cardioprotective effects. The current review article highlights the role of adenosine signaling in the cardioprotective mechanism of conditioning techniques. The article also provides an insight into various clinical studies that substantiate the applicability of adenosine as a cardioprotective agent in myocardial reperfusion injury.
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Affiliation(s)
- Kuldeep Kumar
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
| | - Nirmal Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
| | - Harlokesh Narayan Yadav
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - Leonid Maslov
- Cardiology Research Institute, Tomsk National Research Medical Center of the Russian Academy of Science, Tomsk, Russia
| | - Amteshwar Singh Jaggi
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
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13
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O'Brien BJ, Faraoni EY, Strickland LN, Ma Z, Mota V, Mota S, Chen X, Mills T, Eltzschig HK, DelGiorno KE, Bailey‐Lundberg JM. CD73-generated extracellular adenosine promotes resolution of neutrophil-mediated tissue injury and restrains metaplasia in pancreatitis. FASEB J 2023; 37:e22684. [PMID: 36468677 PMCID: PMC9753971 DOI: 10.1096/fj.202201537r] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/07/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Pancreatitis is currently the leading cause of gastrointestinal hospitalizations in the US. This condition occurs in response to abdominal injury, gallstones, chronic alcohol consumption or, less frequently, the cause remains idiopathic. CD73 is a cell surface ecto-5'-nucleotidase that generates extracellular adenosine, which can contribute to resolution of inflammation by binding adenosine receptors on infiltrating immune cells. We hypothesized genetic deletion of CD73 would result in more severe pancreatitis due to decreased generation of extracellular adenosine. CD73 knockout (CD73-/- ) and C57BL/6 (wild type, WT) mice were used to evaluate the progression and response of caerulein-induced acute and chronic pancreatitis. In response to caerulein-mediated chronic or acute pancreatitis, WT mice display resolution of pancreatitis at earlier timepoints than CD73-/- mice. Using immunohistochemistry and analysis of single-cell RNA-seq (scRNA-seq) data, we determined CD73 localization in chronic pancreatitis is primarily observed in mucin/ductal cell populations and immune cells. In murine pancreata challenged with caerulein to induce acute pancreatitis, we compared CD73-/- to WT mice and observed a significant infiltration of Ly6G+, MPO+, and Granzyme B+ cells in CD73-/- compared to WT pancreata and we quantified a significant increase in acinar-to-ductal metaplasia demonstrating sustained metaplasia and inflammation in CD73-/- mice. Using neutrophil depletion in CD73-/- mice, we show neutrophil depletion significantly reduces metaplasia defined by CK19+ cells per field and significantly reduces acute pancreatitis. These data identify CD73 enhancers as a potential therapeutic strategy for patients with acute and chronic pancreatitis as adenosine generation and activation of adenosine receptors is critical to resolve persistent inflammation in the pancreas.
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Affiliation(s)
- Baylee J. O'Brien
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Erika Y. Faraoni
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Lincoln N. Strickland
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Zhibo Ma
- Gene Expression LaboratoryThe Salk Institute for Biological SciencesSan DiegoCaliforniaUSA
| | - Victoria Mota
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Samantha Mota
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
- The Graduate School of Biomedical SciencesThe University of Texas MD Anderson Cancer Center and The University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Xuebo Chen
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Tingting Mills
- Department of Biochemistry, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Holger K. Eltzschig
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Kathleen E. DelGiorno
- Department of Cell and Developmental BiologyVanderbilt UniversityNashvilleTennesseeUSA
| | - Jennifer M. Bailey‐Lundberg
- Center for Perioperative Medicine, Department of Anesthesiology, McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTexasUSA
- The Graduate School of Biomedical SciencesThe University of Texas MD Anderson Cancer Center and The University of Texas Health Science Center at HoustonHoustonTexasUSA
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14
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The role of adenosine A 1 receptor on immune cells. Inflamm Res 2022; 71:1203-1212. [PMID: 36064866 DOI: 10.1007/s00011-022-01607-w] [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: 05/28/2022] [Revised: 06/27/2022] [Accepted: 06/29/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Adenosine, acting as a regulator by mediating the activation of G protein-coupled adenosine receptor families (A1, A2A, A2B, and A3), plays an important role under physiological and pathological conditions. As the receptor with the highest affinity for adenosine, the role of adenosine A1 receptor (A1R)-mediated adenosine signaling pathway in the central nervous system has been well addressed. However, functions of A1R on immune cells are less summarized. Considering that some immune cells express multiple types of adenosine receptors with distinct effects and varied density, exogenous adenosine of different concentrations may induce divergent immune cell functions. MATERIALS AND METHODS The literatures about the expression of A1R and its regulation on immune cells and how it regulates the function of immune cells were searched on PubMed and Google Scholar. CONCLUSION In this review, we discussed the effects of A1R on immune cells, including monocytes, macrophages, neutrophils, dendritic cells, and microglia, and focused on the role of A1R in regulating immune cells in diseases, which may facilitate our understanding of the mechanisms by which adenosine affects immune cells through A1R.
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15
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Marucci G, Buccioni M, Varlaro V, Volpini R, Amenta F. The possible role of the nucleoside adenosine in countering skin aging: A review. Biofactors 2022; 48:1027-1035. [PMID: 35979986 PMCID: PMC9804842 DOI: 10.1002/biof.1881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 07/12/2022] [Indexed: 01/07/2023]
Abstract
Skin aging is a complex biological process. Skin aspect is considered as a sign of well-being and of beauty. In view of this, noninvasive and/or minimally invasive anti-aging strategies were developed. Adenosine, a well-known nucleoside, may play a role in skin rejuvenation. Adenosine receptors belong to the G protein-coupled receptors superfamily and are divided into four subtypes: A1 , A2A , A2B , and A3 . The adenosine receptors expressed by skin are mainly the A1 and A2A subtypes. In the hypodermis, adenosine through the A1 receptor stimulates lipogenesis and adipogenesis. In the dermis, adenosine through the A2A receptor subtype stimulates collagen production. Moreover, the nucleoside increases new DNA synthesis and subsequently protein synthesis in dermal cells. Activation of adenosine receptors by interacting with various skin layers may induce a decrease in the amount of wrinkles, roughness, dryness, and laxity. This article has reviewed the mechanisms through which adenosine modulates biological mechanisms in the skin tissues and the effect of preparations containing adenosine or its derivatives on the skin.
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Affiliation(s)
- Gabriella Marucci
- School of Medicinal and Health Products Sciences, Master in Aesthetic Medicine and TherapeuticsUniversity of CamerinoCamerinoItaly
| | - Michela Buccioni
- School of Medicinal and Health Products Sciences, Master in Aesthetic Medicine and TherapeuticsUniversity of CamerinoCamerinoItaly
| | - Vincenzo Varlaro
- School of Medicinal and Health Products Sciences, Master in Aesthetic Medicine and TherapeuticsUniversity of CamerinoCamerinoItaly
| | - Rosaria Volpini
- School of Medicinal and Health Products Sciences, Master in Aesthetic Medicine and TherapeuticsUniversity of CamerinoCamerinoItaly
| | - Francesco Amenta
- School of Medicinal and Health Products Sciences, Master in Aesthetic Medicine and TherapeuticsUniversity of CamerinoCamerinoItaly
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16
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Pak ES, Cha JJ, Cha DR, Kanasaki K, Ha H. Adenosine receptors as emerging therapeutic targets for diabetic kidney disease. Kidney Res Clin Pract 2022; 41:S74-S88. [PMID: 36239063 PMCID: PMC9590297 DOI: 10.23876/j.krcp.22.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/27/2022] [Accepted: 05/05/2022] [Indexed: 08/07/2023] Open
Abstract
Diabetic kidney disease (DKD) is now a pandemic worldwide, and novel therapeutic options are urgently required. Adenosine, an adenosine triphosphate metabolite, plays a role in kidney homeostasis through interacting with four types of adenosine receptors (ARs): A1AR, A2AAR, A2BAR, and A3AR. Increasing evidence highlights the role of adenosine and ARs in the development and progression of DKD: 1) increased adenosine in the plasma and urine of diabetics with kidney injury, 2) increased expression of each of the ARs in diabetic kidneys, 3) the protective effect of coffee, a commonly ingested nonselective AR antagonist, on DKD, and 4) the protective effect of AR modulators in experimental DKD models. We propose AR modulators as a new therapeutic option to treat DKD. Detailed mechanistic studies on the pharmacology of AR modulators will help us to develop effective first-in-class AR modulators against DKD.
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Affiliation(s)
- Eun Seon Pak
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Jin Joo Cha
- Department of Nephrology, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Dae Ryong Cha
- Department of Nephrology, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Keizo Kanasaki
- Department of Internal Medical 1, Shimane University Faculty of Medicine, Izumo, Japan
| | - Hunjoo Ha
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
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17
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Mangmool S, Kyaw ETH, Nuamnaichati N, Pandey S, Parichatikanond W. Stimulation of adenosine A 1 receptor prevents oxidative injury in H9c2 cardiomyoblasts: Role of Gβγ-mediated Akt and ERK1/2 signaling. Toxicol Appl Pharmacol 2022; 451:116175. [PMID: 35901927 DOI: 10.1016/j.taap.2022.116175] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/15/2022] [Accepted: 07/20/2022] [Indexed: 02/05/2023]
Abstract
Oxidative stress causes cellular injury and damage in the heart primarily through apoptosis resulting in cardiac abnormalities such as heart failure and cardiomyopathy. During oxidative stress, stimulation of adenosine receptor (AR) has been shown to protect against oxidative damage due to their cytoprotective properties. However, the subtype specificity and signal transductions of adenosine A1 receptor (A1R) on cardiac protection during oxidative stress have remained elusive. In this study, we found that stimulation of A1Rs with N6-cyclopentyladenosine (CPA), a specific A1R agonist, attenuated the H2O2-induced intracellular and mitochondrial reactive oxygen species (ROS) production and apoptosis. In addition, A1R stimulation upregulated the synthesis of antioxidant enzymes (catalase and GPx-1), antiapoptotic proteins (Bcl-2 and Bcl-xL), and mitochondria-related markers (UCP2 and UCP3). Blockades of Gβγ subunit of heterotrimeric Gαi protein antagonized A1R-mediated antioxidant and antiapoptotic effects, confirming the potential role of Gβγ subunit-mediated A1R signaling. Additionally, cardioprotective effects of CPA mediated through PI3K/Akt- and ERK1/2-dependent signaling pathways. Thus, we propose that A1R represents a promising therapeutic target for prevention of oxidative injury in the heart.
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Affiliation(s)
- Supachoke Mangmool
- Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Ei Thet Htar Kyaw
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Narawat Nuamnaichati
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Sudhir Pandey
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Warisara Parichatikanond
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand; Center of Biopharmaceutical Science for Healthy Ageing (BSHA), Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand.
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18
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Trinh PNH, Baltos JA, Hellyer SD, May LT, Gregory KJ. Adenosine receptor signalling in Alzheimer’s disease. Purinergic Signal 2022; 18:359-381. [PMID: 35870032 PMCID: PMC9391555 DOI: 10.1007/s11302-022-09883-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/02/2022] [Indexed: 12/11/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common dementia in the elderly and its increasing prevalence presents treatment challenges. Despite a better understanding of the disease, the current mainstay of treatment cannot modify pathogenesis or effectively address the associated cognitive and memory deficits. Emerging evidence suggests adenosine G protein-coupled receptors (GPCRs) are promising therapeutic targets for Alzheimer’s disease. The adenosine A1 and A2A receptors are expressed in the human brain and have a proposed involvement in the pathogenesis of dementia. Targeting these receptors preclinically can mitigate pathogenic β-amyloid and tau neurotoxicity whilst improving cognition and memory. In this review, we provide an accessible summary of the literature on Alzheimer’s disease and the therapeutic potential of A1 and A2A receptors. Although there are no available medicines targeting these receptors approved for treating dementia, we provide insights into some novel strategies, including allosterism and the targeting of oligomers, which may increase drug discovery success and enhance the therapeutic response.
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Affiliation(s)
- Phuc N. H. Trinh
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052 Australia
- Department of Pharmacology, Monash University, Parkville, VIC 3052 Australia
| | - Jo-Anne Baltos
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052 Australia
- Department of Pharmacology, Monash University, Parkville, VIC 3052 Australia
| | - Shane D. Hellyer
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052 Australia
| | - Lauren T. May
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052 Australia
- Department of Pharmacology, Monash University, Parkville, VIC 3052 Australia
| | - Karen J. Gregory
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052 Australia
- Department of Pharmacology, Monash University, Parkville, VIC 3052 Australia
- ARC Centre for Cryo-Electron Microscopy of Membrane Proteins, Monash Institute of Pharmaceutical Sciences, Parkville, 3052 Australia
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Koszalka P, Kutryb-Zajac B, Mierzejewska P, Tomczyk M, Wietrzyk J, Serafin PK, Smolenski RT, Slominska EM. 4-Pyridone-3-carboxamide-1-β-D-ribonucleoside (4PYR)—A Novel Oncometabolite Modulating Cancer-Endothelial Interactions in Breast Cancer Metastasis. Int J Mol Sci 2022; 23:ijms23105774. [PMID: 35628582 PMCID: PMC9145394 DOI: 10.3390/ijms23105774] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/16/2022] [Accepted: 05/19/2022] [Indexed: 11/17/2022] Open
Abstract
The accumulation of specific metabolic intermediates is known to promote cancer progression. We analyzed the role of 4-pyridone-3-carboxamide-1-β-D-ribonucleoside (4PYR), a nucleotide metabolite that accumulates in the blood of cancer patients, using the 4T1 murine in vivo breast cancer model, and cultured cancer (4T1) and endothelial cells (ECs) for in vitro studies. In vivo studies demonstrated that 4PYR facilitated lung metastasis without affecting primary tumor growth. In vitro studies demonstrated that 4PYR affected extracellular adenine nucleotide metabolism and the intracellular energy status in ECs, shifting catabolite patterns toward the accumulation of extracellular inosine, and leading to the increased permeability of lung ECs. These changes prevailed over the direct effect of 4PYR on 4T1 cells that reduced their invasive potential through 4PYR-induced modulation of the CD73-adenosine axis. We conclude that 4PYR is an oncometabolite that affects later stages of the metastatic cascade by acting specifically through the regulation of EC permeability and metabolic controls of inflammation.
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Affiliation(s)
- Patrycja Koszalka
- Institute of Medical Biotechnology and Experimental Oncology, Intercollegiate Faculty of Biotechnology UG-MUG, Medical University of Gdansk, 80-210 Gdansk, Poland;
- Correspondence: (P.K.); (E.M.S.); Tel.: +48-58-349-1410 (P.K.); +48-58-349-1006 (E.M.S.)
| | - Barbara Kutryb-Zajac
- Department of Biochemistry, Medical University of Gdansk, 80-210 Gdansk, Poland; (B.K.-Z.); (P.M.); (M.T.); (R.T.S.)
| | - Paulina Mierzejewska
- Department of Biochemistry, Medical University of Gdansk, 80-210 Gdansk, Poland; (B.K.-Z.); (P.M.); (M.T.); (R.T.S.)
| | - Marta Tomczyk
- Department of Biochemistry, Medical University of Gdansk, 80-210 Gdansk, Poland; (B.K.-Z.); (P.M.); (M.T.); (R.T.S.)
| | - Joanna Wietrzyk
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland;
| | - Pawel K. Serafin
- Institute of Medical Biotechnology and Experimental Oncology, Intercollegiate Faculty of Biotechnology UG-MUG, Medical University of Gdansk, 80-210 Gdansk, Poland;
| | - Ryszard T. Smolenski
- Department of Biochemistry, Medical University of Gdansk, 80-210 Gdansk, Poland; (B.K.-Z.); (P.M.); (M.T.); (R.T.S.)
| | - Ewa M. Slominska
- Department of Biochemistry, Medical University of Gdansk, 80-210 Gdansk, Poland; (B.K.-Z.); (P.M.); (M.T.); (R.T.S.)
- Correspondence: (P.K.); (E.M.S.); Tel.: +48-58-349-1410 (P.K.); +48-58-349-1006 (E.M.S.)
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20
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Mahmood A, Iqbal J. Purinergic receptors modulators: An emerging pharmacological tool for disease management. Med Res Rev 2022; 42:1661-1703. [PMID: 35561109 DOI: 10.1002/med.21888] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 03/16/2022] [Accepted: 05/04/2022] [Indexed: 11/10/2022]
Abstract
Purinergic signaling is mediated through extracellular nucleotides (adenosine 5'-triphosphate, uridine-5'-triphosphate, adenosine diphosphate, uridine-5'-diphosphate, and adenosine) that serve as signaling molecules. In the early 1990s, purines and pyrimidine receptors were cloned and characterized drawing the attention of scientists toward this aspect of cellular signaling. This signaling pathway is comprised of four subtypes of adenosine receptors (P1), eight subtypes of G-coupled protein receptors (P2YRs), and seven subtypes of ligand-gated ionotropic receptors (P2XRs). In current studies, the pathophysiology and therapeutic potentials of these receptors have been focused on. Various ligands, modulating the functions of purinergic receptors, are in current clinical practices for the treatment of various neurodegenerative disorders and cardiovascular diseases. Moreover, several purinergic receptors ligands are in advanced phases of clinical trials as a remedy for depression, epilepsy, autism, osteoporosis, atherosclerosis, myocardial infarction, diabetes, irritable bowel syndrome, and cancers. In the present study, agonists and antagonists of purinergic receptors have been summarized that may serve as pharmacological tools for drug design and development.
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Affiliation(s)
- Abid Mahmood
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad, Pakistan
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21
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Merighi S, Nigro M, Travagli A, Pasquini S, Borea PA, Varani K, Vincenzi F, Gessi S. A 2A Adenosine Receptor: A Possible Therapeutic Target for Alzheimer's Disease by Regulating NLRP3 Inflammasome Activity? Int J Mol Sci 2022; 23:ijms23095056. [PMID: 35563447 PMCID: PMC9101264 DOI: 10.3390/ijms23095056] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/29/2022] [Accepted: 04/29/2022] [Indexed: 02/06/2023] Open
Abstract
The A2A adenosine receptor, a member of the P1 purinergic receptor family, plays a crucial role in the pathophysiology of different neurodegenerative illnesses, including Alzheimer’s disease (AD). It regulates both neurons and glial cells, thus modulating synaptic transmission and neuroinflammation. AD is a complex, progressive neurological condition that is the leading cause of dementia in the world’s old population (>65 years of age). Amyloid peptide-β extracellular accumulation and neurofibrillary tangles constitute the principal etiologic tracts, resulting in apoptosis, brain shrinkage, and neuroinflammation. Interestingly, a growing body of evidence suggests a role of NLRP3 inflammasome as a target to treat neurodegenerative diseases. It represents a tripartite multiprotein complex including NLRP3, ASC, and procaspase-1. Its activation requires two steps that lead with IL-1β and IL-18 release through caspase-1 activation. NLRP3 inhibition provides neuroprotection, and in recent years adenosine, through the A2A receptor, has been reported to modulate NLRP3 functions to reduce organ damage. In this review, we describe the role of NLRP3 in AD pathogenesis, both alone and in connection to A2A receptor regulation, in order to highlight a novel approach to address treatment of AD.
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Affiliation(s)
- Stefania Merighi
- Department of Translational Medicine and for Romagna, University of Ferrara, 44121 Ferrara, Italy; (S.M.); (M.N.); (A.T.); (K.V.); (F.V.)
| | - Manuela Nigro
- Department of Translational Medicine and for Romagna, University of Ferrara, 44121 Ferrara, Italy; (S.M.); (M.N.); (A.T.); (K.V.); (F.V.)
| | - Alessia Travagli
- Department of Translational Medicine and for Romagna, University of Ferrara, 44121 Ferrara, Italy; (S.M.); (M.N.); (A.T.); (K.V.); (F.V.)
| | - Silvia Pasquini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44121 Ferrara, Italy;
| | | | - Katia Varani
- Department of Translational Medicine and for Romagna, University of Ferrara, 44121 Ferrara, Italy; (S.M.); (M.N.); (A.T.); (K.V.); (F.V.)
| | - Fabrizio Vincenzi
- Department of Translational Medicine and for Romagna, University of Ferrara, 44121 Ferrara, Italy; (S.M.); (M.N.); (A.T.); (K.V.); (F.V.)
| | - Stefania Gessi
- Department of Translational Medicine and for Romagna, University of Ferrara, 44121 Ferrara, Italy; (S.M.); (M.N.); (A.T.); (K.V.); (F.V.)
- Correspondence:
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22
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Pathophysiological Role and Medicinal Chemistry of A 2A Adenosine Receptor Antagonists in Alzheimer's Disease. Molecules 2022; 27:molecules27092680. [PMID: 35566035 PMCID: PMC9102440 DOI: 10.3390/molecules27092680] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 12/20/2022] Open
Abstract
The A2A adenosine receptor is a protein belonging to a family of four GPCR adenosine receptors. It is involved in the regulation of several pathophysiological conditions in both the central nervous system and periphery. In the brain, its localization at pre- and postsynaptic level in striatum, cortex, hippocampus and its effects on glutamate release, microglia and astrocyte activation account for a crucial role in neurodegenerative diseases, including Alzheimer’s disease (AD). This ailment is considered the main form of dementia and is expected to exponentially increase in coming years. The pathological tracts of AD include amyloid peptide-β extracellular accumulation and tau hyperphosphorylation, causing neuronal cell death, cognitive deficit, and memory loss. Interestingly, in vitro and in vivo studies have demonstrated that A2A adenosine receptor antagonists may counteract each of these clinical signs, representing an important new strategy to fight a disease for which unfortunately only symptomatic drugs are available. This review offers a brief overview of the biological effects mediated by A2A adenosine receptors in AD animal and human studies and reports the state of the art of A2A adenosine receptor antagonists currently in clinical trials. As an original approach, it focuses on the crucial role of pharmacokinetics and ability to pass the blood–brain barrier in the discovery of new agents for treating CNS disorders. Considering that A2A receptor antagonist istradefylline is already commercially available for Parkinson’s disease treatment, if the proof of concept of these ligands in AD is confirmed and reinforced, it will be easier to offer a new hope for AD patients.
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23
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Francucci B, Dal Ben D, Lambertucci C, Spinaci A, Volpini R, Marucci G, Buccioni M. A patent review of adenosine A 2B receptor antagonists (2016-present). Expert Opin Ther Pat 2022; 32:689-712. [PMID: 35387537 DOI: 10.1080/13543776.2022.2057222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION A2B adenosine receptor (A2BAR) plays a crucial role in pathophysiologic conditions associated with high adenosine release, typical of airway inflammatory pathologies, gastrointestinal disorders, cancer, asthma, type 2 diabetes, and atherosclerosis. In some pathologies, simultaneous inactivation of A2A and A2BARs is desirable to have a synergism of action that leads to a greater efficacy of the pharmacological treatment and less side effects due to the dose of drug administered. In this context, it is strongly required to identify molecules capable of selectively antagonizing A2BAR or A2A/A2BARs. AREAS COVERED The review provides a summary of patents, published from 2016 to present, on chemicals and their clinical use. In this paper, information on the biological activity of representative structures of recently developed A2B or A2A/A2B receptor ligands is reported. EXPERT OPINION Among the four P1 receptors, A2BAR is the most inscrutable and the least studied until a few years ago, but its involvement in various inflammatory pathologies has recently made it a pharmacological target of high interest. Many efforts by the academy and pharmaceutical companies have been made to discover potential A2BAR and A2A/A2BARs drugs. Although several compounds have been synthesized only a few molecules have entered clinical trials.
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Affiliation(s)
- Beatrice Francucci
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, Camerino, Italy
| | - Diego Dal Ben
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, Camerino, Italy
| | - Catia Lambertucci
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, Camerino, Italy
| | - Andrea Spinaci
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, Camerino, Italy
| | - Rosaria Volpini
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, Camerino, Italy
| | - Gabriella Marucci
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, Camerino, Italy
| | - Michela Buccioni
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, Camerino, Italy
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24
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Letson HL, Morris JL, Biros E, Dobson GP. ALM Induces Cellular Quiescence in the Surgical Margin 3 d Following Liver Resection, Hemorrhage, and Shock. J Surg Res 2022; 275:16-28. [PMID: 35219247 DOI: 10.1016/j.jss.2022.01.010] [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: 11/05/2021] [Revised: 01/24/2022] [Accepted: 01/25/2022] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The liver has a remarkable capacity to regenerate but not the resected lobe. Our aim was to examine the expression of a number of key genes of metabolism, proliferation, survival, and reprogramming 5 mm inside the resected margin following resuscitation with adenosine, lidocaine, and Mg2+ (ALM) therapy. MATERIALS AND METHODS Anesthetized adult male Sprague-Dawley rats randomly assigned to ALM treatment (n = 10) or Saline controls (n = 10) underwent liver resection (60% left lateral lobe) and uncontrolled bleeding. After 15 min, 3% NaCl ± ALM bolus was administered, and after 60 min, a 4 h 0.9% NaCl ± ALM stabilization 'drip' was commenced. After 72 h monitoring (or high moribund score), histopathology, inflammatory mediators, and relative expression of key genes of tissue repair were measured in the remaining left lateral liver. RESULTS ALM animals survived 72 h compared to 23 h for Saline controls (P = 0.002). In the surgical margin, ALM therapy showed preservation of cellular architecture, whereas controls had increased inflammation and diffuse necrosis. Liver proinflammatory cytokines were also 2- to 4-fold higher in Saline controls. ALM therapy dramatically suppressed (∼70%) gene expression of four adenosine receptors, metabolic signaling, autophagy, apoptosis, and cell proliferation compared to controls, including suppression of the Yamanaka factors by up to 85%. CONCLUSIONS We conclude ALM therapy preserved hepatocyte architecture with less inflammation and necrosis 3 d after resection, hemorrhage, and shock. In addition, ALM induced cellular quiescence in the surgical margin, which may be a strategy for improved barrier protection and healing. Further studies are required to address this question.
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Affiliation(s)
- Hayley L Letson
- Heart and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, Townsville, Australia
| | - Jodie L Morris
- Heart and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, Townsville, Australia
| | - Erik Biros
- Heart and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, Townsville, Australia
| | - Geoffrey P Dobson
- Heart and Trauma Research Laboratory, College of Medicine and Dentistry, James Cook University, Townsville, Australia.
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25
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Wang J, Wang D, Zheng X, Li Y, Li Y, Ma T, Li J, Sun J, Wang Y, Ma Q. A 2B Adenosine Receptor Inhibition Ameliorates Hypoxic-Ischemic Injury in Neonatal Mice via PKC/Erk/Creb/HIF-1α Signaling Pathway. Brain Res 2022; 1782:147837. [PMID: 35182571 DOI: 10.1016/j.brainres.2022.147837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 02/12/2022] [Accepted: 02/14/2022] [Indexed: 12/29/2022]
Abstract
Periventricular leukomalacia (PVL), the dominant cerebral white matter injury disease, is induced by hypoxia-ischemia and inflammation in premature infants. The activation of A2B adenosine receptor (A2BAR) is shown to involve into inflammation, ischemia, and other typical stress reactions, but its exact function in PVL has not been clarified. We gained initial insight from PVL mouse model (P9) by the induction of hypoxia-ischemia with right carotid ligation followed by exposure to hypoxia and intraperitoneal (i.p.) injection of Lipopolysaccharide (LPS). The results showed that treatment of PSB-603, an A2BAR selective antagonist, greatly ameliorated cerebral ischemic injury by increasing bodyweights, reducing infarct volume, brain injury,inflammation andcontributing to long-term learning memory functionalrecoveryof the PVL mice. Meanwhile, PSB-603 treatment suppressed neurons apoptosis as characterized byreducing of Caspase-3 level, inhibited microglia activation and attenuated hypomyelination through promoting MBP expression and oligodendrocytes differentiation. A2BAR inhibition also augmented PKC expression, the activity of PKC downstream signaling molecules were then explored . Erk expression and Creb phosphorylation exhibited upregulation in PSB-603 treatment group compared with the control group. Hypoxia Inducible Factor-1α (HIF-1α), a direct target of hypoxia, which is a key regulator of adenosine signaling by binding to the A2BAR promoter to induce expression of A2BAR, was shown to be decreased by PSB-603. Taken together, A2BAR inhibition can ameliorate hypoxic-ischemic injury in PVL mice maybe through PKC/Erk/Creb/HIF-1α signaling pathway.
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Affiliation(s)
- Junyan Wang
- Basic Medical School, Ningxia Medical University,Yinchuan, Ningxia 750004, P.R. China
| | - Dan Wang
- Basic Medical School, Ningxia Medical University,Yinchuan, Ningxia 750004, P.R. China
| | - Xiaomin Zheng
- Department of Pediatric Neurorehabilitation, People' s Hospital of Ningxia Hui Autonomous Region, Yinchuan 750004, P.R. China
| | - Yunhong Li
- Basic Medical School, Ningxia Medical University,Yinchuan, Ningxia 750004, P.R. China
| | - Yilu Li
- Basic Medical School, Ningxia Medical University,Yinchuan, Ningxia 750004, P.R. China
| | - Teng Ma
- Basic Medical School, Ningxia Medical University,Yinchuan, Ningxia 750004, P.R. China
| | - Jinxia Li
- Basic Medical School, Ningxia Medical University,Yinchuan, Ningxia 750004, P.R. China
| | - Jinping Sun
- Basic Medical School, Ningxia Medical University,Yinchuan, Ningxia 750004, P.R. China
| | - Yin Wang
- Basic Medical School, Ningxia Medical University,Yinchuan, Ningxia 750004, P.R. China.
| | - Quanrui Ma
- Basic Medical School, Ningxia Medical University,Yinchuan, Ningxia 750004, P.R. China.
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26
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Mao LM, Demehri S, Wang JQ. Upregulation of Src Family Tyrosine Kinases in the Rat Striatum by Adenosine A 2A Receptors. J Mol Neurosci 2022; 72:802-811. [PMID: 35041190 PMCID: PMC8986616 DOI: 10.1007/s12031-021-01961-0] [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: 08/18/2021] [Accepted: 12/20/2021] [Indexed: 11/25/2022]
Abstract
Adenosine A2A receptors are Golf-coupled receptors and are predominantly expressed in the striatum of mammalian brains. As a mostly postsynaptic receptor, A2A receptors are implicated in the regulation of a variety of intracellular signaling pathways in striatopallidal output neurons and are linked to the pathogenesis of various neuropsychiatric and neurological disorders. This study investigated the possible role of A2A receptors in the modulation of the Src family kinase (SFK) in the adult rat striatum. In acutely prepared striatal slices, adding the A2A receptor agonist PSB-0777 induced a significant increase in phosphorylation of SFKs at a conserved autophosphorylation site (Y416) in the caudate putamen (CPu). This increase was also seen in the nucleus accumbens (NAc). Another A2A agonist CGS-21680 showed the similar ability to elevate SFK Y416 phosphorylation in the striatum. Treatment with the A2A receptor antagonist KW-6002 blocked the effect of PSB-0777 on SFK Y416 phosphorylation. In addition, PSB-0777 enhanced kinase activity of two key SFK members (Src and Fyn) immunoprecipitated from the striatum. These data demonstrate a positive linkage from A2A receptors to the SFK signaling pathway in striatal neurons. Activation of A2A receptors leads to the upregulation of phosphorylation of SFKs (Src and Fyn) at an activation-associated autophosphorylation site and kinase activity of these SFK members.
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Affiliation(s)
- Li-Min Mao
- Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, MO, 64108, USA
| | - Shannon Demehri
- Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, MO, 64108, USA
| | - John Q Wang
- Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, MO, 64108, USA.
- Department of Anesthesiology, School of Medicine, University of Missouri-Kansas City, Kansas City, MO, 64108, USA.
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27
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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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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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29
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Mao LM, Wang JQ. Roles of adenosine A 1 receptors in the regulation of SFK activity in the rat forebrain. Brain Behav 2021; 11:e2254. [PMID: 34156168 PMCID: PMC8413746 DOI: 10.1002/brb3.2254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 05/28/2021] [Accepted: 06/02/2021] [Indexed: 02/06/2023] Open
Abstract
Adenosine A1 receptors are widely expressed in the mammalian brain. Through interacting with Gαi/o -coupled A1 receptors, the neuromodulator adenosine modulates a variety of cellular and synaptic activities. To determine the linkage from A1 receptors to a key intracellular signaling pathway, we investigated the impact of blocking A1 receptors on a subfamily of nonreceptor tyrosine kinases, that is, the Src family kinase (SFK), in different rat brain regions in vivo. We found that pharmacological blockade of A1 receptors by a single systemic injection of the A1 selective antagonist 8-cyclopentyl-1,3-dipropylxanthine (DPCPX) induced an increase in autophosphorylation of SFKs at a consensus activation site, tyrosine 416 (Y416), in the two subdivisions of the striatum, the caudate putamen and nucleus accumbens. DPCPX also increased SFK Y416 phosphorylation in the medial prefrontal cortex (mPFC) but not the hippocampus. The DPCPX-induced Y416 phosphorylation was time dependent and reversible. In immunopurified Fyn and Src proteins from the striatum, DPCPX elevated SFK Y416 phosphorylation and tyrosine kinase activity in Fyn but not in Src proteins. In the mPFC, DPCPX enhanced Y416 phosphorylation and tyrosine kinase activity in both Fyn and Src immunoprecipitates. DPCPX had no effect on expression of total Fyn and Src proteins in the striatum, mPFC, and hippocampus. These results demonstrate a tonic inhibitory linkage from A1 receptors to SFKs in the striatum and mPFC. Blocking this inhibitory tone could significantly enhance constitutive SFK Y416 phosphorylation in the rat brain in a region- and time-dependent manner.
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Affiliation(s)
- Li-Min Mao
- Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - John Q Wang
- Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri, USA.,Department of Anesthesiology, School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri, USA
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30
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Rasmussen HB, Jürgens G, Thomsen R, Taboureau O, Zeth K, Hansen PE, Hansen PR. Cellular Uptake and Intracellular Phosphorylation of GS-441524: Implications for Its Effectiveness against COVID-19. Viruses 2021; 13:v13071369. [PMID: 34372575 PMCID: PMC8310262 DOI: 10.3390/v13071369] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/27/2021] [Accepted: 07/07/2021] [Indexed: 12/22/2022] Open
Abstract
GS-441524 is an adenosine analog and the parent nucleoside of the prodrug remdesivir, which has received emergency approval for treatment of COVID-19. Recently, GS-441524 has been proposed to be effective in the treatment of COVID-19, perhaps even being superior to remdesivir for treatment of this disease. Evaluation of the clinical effectiveness of GS-441524 requires understanding of its uptake and intracellular conversion to GS-441524 triphosphate, the active antiviral substance. We here discuss the potential impact of these pharmacokinetic steps of GS-441524 on the formation of its active antiviral substance and effectiveness for treatment of COVID-19. Available protein expression data suggest that several adenosine transporters are expressed at only low levels in the epithelial cells lining the alveoli in the lungs, i.e., the alveolar cells or pneumocytes from healthy lungs. This may limit uptake of GS-441524. Importantly, cellular uptake of GS-441524 may be reduced during hypoxia and inflammation due to decreased expression of adenosine transporters. Similarly, hypoxia and inflammation may lead to reduced expression of adenosine kinase, which is believed to convert GS-441524 to GS-441524 monophosphate, the perceived rate-limiting step in the intracellular formation of GS-441524 triphosphate. Moreover, increases in extracellular and intracellular levels of adenosine, which may occur during critical illnesses, has the potential to competitively decrease cellular uptake and phosphorylation of GS-441524. Taken together, tissue hypoxia and severe inflammation in COVID-19 may lead to reduced uptake and phosphorylation of GS-441524 with lowered therapeutic effectiveness as a potential outcome. Hypoxia may be particularly critical to the ability of GS-441524 to eliminate SARS-CoV-2 from tissues with low basal expression of adenosine transporters, such as alveolar cells. This knowledge may also be relevant to treatments with other antiviral adenosine analogs and anticancer adenosine analogs as well.
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Affiliation(s)
- Henrik Berg Rasmussen
- Institute of Biological Psychiatry, Mental Health Centre Sct. Hans, DK-4000 Roskilde, Denmark
- Department of Science and Environment, Roskilde University Center, DK-4000 Roskilde, Denmark; (K.Z.); (P.E.H.)
- Correspondence:
| | - Gesche Jürgens
- Clinical Pharmacology Unit, Zealand University Hospital, DK-4000 Roskilde, Denmark;
| | - Ragnar Thomsen
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark;
| | - Olivier Taboureau
- INSERM U1133, CNRS UMR 8251, Université de Paris, F-75013 Paris, France;
| | - Kornelius Zeth
- Department of Science and Environment, Roskilde University Center, DK-4000 Roskilde, Denmark; (K.Z.); (P.E.H.)
| | - Poul Erik Hansen
- Department of Science and Environment, Roskilde University Center, DK-4000 Roskilde, Denmark; (K.Z.); (P.E.H.)
| | - Peter Riis Hansen
- Department of Cardiology, Herlev and Gentofte Hospital, DK-2900 Hellerup, Denmark;
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Gdula AM, Swiatkowska M. A2 A receptor agonists and P2Y 12 receptor antagonists modulate expression of thrombospondin-1 (TSP-1) and its secretion from Human Microvascular Endothelial Cells (HMEC-1). Microvasc Res 2021; 138:104218. [PMID: 34182003 DOI: 10.1016/j.mvr.2021.104218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 05/07/2021] [Accepted: 06/24/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUNDS AND AIMS To address the problem of resistance to standard antiplatelet therapy in some patients, our team proposed a purinoceptor-dependent dual therapy. Its efficacy is also determined by the condition of the vascular endothelium which, by secreting numerous factors, is involved in hemostasis. Among them, thrombospondin-1 is important in the context of thrombotic events. Therefore we sought to determine if the novel dual purinoceptor-dependent concept is associated with TSP-1 changes in vascular endothelial cells. METHODS AND RESULTS TSP-1 expression in human microvascular endothelial cells was determined at transcriptional and protein level. We performed real-time PCR, the Western blot analysis and ELISA test. We found that TSP-1 mRNA and protein expression levels significantly changed in response to P1R agonists treatment. Furthermore, we have observed that co-administration of selective A2AR agonists (UK-432,097 or MRE0094) with P2Y12R antagonists altered TSP-1 expression levels, and the direction of these changes was not synergistic. MRE0094 applied with ARC69931MX or R-138727 increased mRNA expression from 39 to 56 or 57%, respectively (*P < 0.05 vs. MRE0094; ***P < 0.001 vs. control). Also, in the case of the P2Y12R antagonists used together with UK-432,097, there was an increase from 53 to 71 and 70% (*P < 0.05 vs. UK-432,097; ***P < 0.001 vs. control). The observed trends in gene expression were reflected in the protein expression and the level of its secretion from HMEC-1. CONCLUSION The article presents evidence which proves that the purinoceptor-dependent concept is associated with TSP-1 changes in endothelial cells (EC). Moreover, Human Microvascular Endothelial Cells treatment applied together with agonists (MRE0094 or UK-432,097) and P2Y12R antagonist did not result in any synergistic effect, implicating a possible crosstalk between G proteins in GPCRs dependent signaling. Therefore, we suggest that understanding of the specific mechanism underlying TSP-1 alterations in EC in the context of the dual purinoceptor-dependent approach is essential for antiplatelet therapies and should be the subject of future research.
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Affiliation(s)
- Anna M Gdula
- Department of Cytobiology and Proteomics, Medical University of Lodz, 6/8 Mazowiecka St., 92-215 Lodz, Poland.
| | - Maria Swiatkowska
- Department of Cytobiology and Proteomics, Medical University of Lodz, 6/8 Mazowiecka St., 92-215 Lodz, Poland
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Adenosine and Cordycepin Accelerate Tissue Remodeling Process through Adenosine Receptor Mediated Wnt/β-Catenin Pathway Stimulation by Regulating GSK3b Activity. Int J Mol Sci 2021; 22:ijms22115571. [PMID: 34070360 PMCID: PMC8197479 DOI: 10.3390/ijms22115571] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 12/14/2022] Open
Abstract
Adenosine is a cellular metabolite with diverse derivatives that possesses a wide range of physiological roles. We investigated the molecular mechanisms of adenosine and cordycepin for their promoting effects in wound-healing process. The mitochondrial energy metabolism and cell proliferation markers, cAMP responsive element binding protein 1 (CREB1) and Ki67, were enhanced by adenosine and cordycepin in cultured dermal fibroblasts. Adenosine and cordycepin stimulated adenosine receptor signaling via elevated cAMP. The phosphorylation of mitogen-activated protein kinase kinase (MEK) 1/2, mammalian target of rapamycin (mTOR) and glycogen synthase kinase 3 beta (Gsk3b) and Wnt target genes such as bone morphogenetic protein (BMP) 2/4 and lymphoid enhancer binding factor (Lef) 1 were activated. The enhanced gene expression by adenosine and cordycepin was abrogated by adenosine A2A and A2B receptor inhibitors, ZM241385 and PSH603, and protein kinase A (PKA) inhibitor H89, indicating the involvement of adenosine receptor A2A, A2B and PKA. As a result of Wnt/β-catenin pathway activation, the secretion of growth factors such as insulin-like growth factor (IGF)-1 and transforming growth factor beta (TGFβ) 3 was increased, previously reported to facilitate the wound healing process. In addition, in vitro fibroblast migration was also increased, demonstrating their possible roles in facilitating the wound healing process. In conclusion, our data strongly demonstrate that adenosine and cordycepin stimulate the Wnt/β-catenin signaling through the activation of adenosine receptor, possibly promoting the tissue remodeling process and suggest their therapeutic potential for treating skin wounds.
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Increased Extracellular Adenosine in Radiotherapy-Resistant Breast Cancer Cells Enhances Tumor Progression through A2AR-Akt-β-Catenin Signaling. Cancers (Basel) 2021; 13:cancers13092105. [PMID: 33925516 PMCID: PMC8123845 DOI: 10.3390/cancers13092105] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/23/2021] [Accepted: 04/24/2021] [Indexed: 01/02/2023] Open
Abstract
Simple Summary In our previous study, purinergic P2Y2 receptor (P2Y2R) activation by ATP was found to play an important role in tumor progression and metastasis by regulating various responses in cancer cells and modulating crosstalk between cancer cells and endothelial cells (ECs). Therefore, we expected that P2Y2R would play a critical role in radioresistance and enhanced tumor progression in radioresistant triple-negative breast cancer (RT-R-TNBC). However, interestingly, P2Y2R expression was slightly decreased in RT-R-TNBC cells, while the expression of A2AR was significantly increased both in RT-R-TNBC cells and in tumor tissues, especially triple negative breast cancer (TNBC) tissues of breast cancer (BC) patients. Thus, we aimed to investigate the role of adenosine A2A receptor (A2AR) and its signaling pathway in the progression of RT-R-TNBC. The results reveal for the first time the role of A2AR in the progression and metastasis of RT-R-BC cells and suggest that the adenosine (ADO)-activated intracellular A2AR signaling pathway is linked to the AKT-β-catenin pathway to regulate RT-R-BC cell invasiveness and metastasis. Abstract Recently, we found that the expressions of adenosine (ADO) receptors A2AR and A2BR and the ectonucleotidase CD73 which is needed for the conversion of adenosine triphosphate (ATP) to adenosine diphosphate (ADP) and the extracellular ADO level are increased in TNBC MDA-MB-231 cells and RT-R-MDA-MB-231 cells compared to normal cells or non-TNBC cells. The expression of A2AR, but not A2BR, is significantly upregulated in breast cancer tissues, especially TNBC tissues, compared to normal epithelial tissues. Therefore, we further investigated the role of ADO-activated A2AR and its signaling pathway in the progression of RT-R-TNBC. ADO treatment induced MDA-MB-231 cell proliferation, colony formation, and invasion, which were enhanced in RT-R-MDA-MB-231 cells in an A2AR-dependent manner. A2AR activation by ADO induced AKT phosphorylation and then β-catenin, Snail, and vimentin expression, and these effects were abolished by A2AR-siRNA transfection. In an in vivo animal study, compared to 4T1-injected mice, RT-R-4T1-injected mice exhibited significantly increased tumor growth and lung metastasis, which were decreased by A2AR-knockdown. The upregulation of phospho-AKT, β-catenin, Snail, and vimentin expression in mice injected with RT-R-4T1 cells was also attenuated in mice injected with RT-R-4T1-A2AR-shRNA cells. These results suggest that A2AR is significantly upregulated in BC tissues, especially TNBC tissues, and ADO-mediated A2AR activation is involved in RT-R-TNBC invasion and metastasis through the AKT-β-catenin pathway.
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Warma A, Lussier JG, Ndiaye K. Tribbles Pseudokinase 2 (TRIB2) Regulates Expression of Binding Partners in Bovine Granulosa Cells. Int J Mol Sci 2021; 22:ijms22041533. [PMID: 33546420 PMCID: PMC7913596 DOI: 10.3390/ijms22041533] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 12/15/2022] Open
Abstract
Members of the Tribbles (TRIB) family of pseudokinases are critical components of intracellular signal transduction pathways in physiological and pathological processes. TRIBs, including TRIB2, have been previously shown as signaling mediators and scaffolding proteins regulating numerous cellular events such as proliferation, differentiation and cell death through protein stability and activity. However, the signaling network associated with TRIB2 and its binding partners in granulosa cells during ovarian follicular development is not fully defined. We previously reported that TRIB2 is differentially expressed in growing dominant follicles while downregulated in ovulatory follicles following the luteinizing hormone (LH) surge or human chorionic gonadotropin (hCG) injection. In the present study, we used the yeast two-hybrid screening system and in vitro coimmunoprecipitation assays to identify and confirm TRIB2 interactions in granulosa cells (GCs) of dominant ovarian follicles (DFs), which yielded individual candidate binding partners including calmodulin 1 (CALM1), inhibin subunit beta A (INHBA), inositol polyphosphate phosphatase-like 1 (INPPL1), 5'-nucleotidase ecto (NT5E), stearoyl-CoA desaturase (SCD), succinate dehydrogenase complex iron sulfur subunit B (SDHB) and Ras-associated protein 14 (RAB14). Further analyses showed that all TRIB2 binding partners are expressed in GCs of dominant follicles but are differentially regulated throughout the different stages of follicular development. CRISPR/Cas9-driven inhibition along with pQE-driven overexpression of TRIB2 showed that TRIB2 differently regulates expression of binding partners, which reveals the importance of TRIB2 in the control of gene expression linked to various biological processes such as proliferation, differentiation, cell migration, apoptosis, calcium signaling and metabolism. These data provide a larger view of potential TRIB2-regulated signal transduction pathways in GCs and provide strong evidence that TRIB2 may act as a regulator of target genes during ovarian follicular development.
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Purinergic Regulation of Endothelial Barrier Function. Int J Mol Sci 2021; 22:ijms22031207. [PMID: 33530557 PMCID: PMC7865261 DOI: 10.3390/ijms22031207] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/10/2021] [Accepted: 01/22/2021] [Indexed: 12/12/2022] Open
Abstract
Increased vascular permeability is a hallmark of several cardiovascular anomalies, including ischaemia/reperfusion injury and inflammation. During both ischaemia/reperfusion and inflammation, massive amounts of various nucleotides, particularly adenosine 5'-triphosphate (ATP) and adenosine, are released that can induce a plethora of signalling pathways via activation of several purinergic receptors and may affect endothelial barrier properties. The nature of the effects on endothelial barrier function may depend on the prevalence and type of purinergic receptors activated in a particular tissue. In this review, we discuss the influence of the activation of various purinergic receptors and downstream signalling pathways on vascular permeability during pathological conditions.
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Raza MZ, Cadassou O, Dumontet C, Cros-Perrial E, Jordheim LP. CD73 and cN-II regulate the cellular response to chemotherapeutic and hypoxic stress in lung adenocarcinoma cells. Biochim Biophys Acta Gen Subj 2021; 1865:129842. [PMID: 33434633 DOI: 10.1016/j.bbagen.2021.129842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/08/2020] [Accepted: 01/04/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Cytosolic 5'-nucleotidase II (cN-II) and ecto-5'-nucleotidase (CD73) are enzymes involved in the nucleotide metabolism by dephosphorylating nucleoside monophosphates. Both enzymes are involved in cancer by modifying anticancer drug activity, cancer cell biology and immune modulation. METHODS We have modified lung cancer cells (NCI-H292) to become deficient for either or both enzymes using the CRISPR/Cas9 technique, and studied the implication of the two enzymes in the cellular response to different stress condition i.e. chemotherapeutic agents, hypoxia and nucleotide stress. RESULTS Our results show that there is no significant role of these enzymes in cell proliferation under hypoxic stress. Similarly, cN-II and CD73 are not involved in wound healing ability under CoCl2-mediated HIF-1α stabilization. Furthermore, our results show that CD73-deficiency is associated with increased apoptosis in response to 1600 μM adenosine, decreased sensitivity to mitomycin and enhanced sensitivity to vincristine. cN-II deficiency increased in vivo tumor growth and sensitivity to vincristine and mitomycin C. CONCLUSIONS Our study gives new insights into the biological roles of cN-II and CD73 under stress conditions in this particular cancer cell line. Further experiments will help deciphering the molecular mechanisms underlying the observed differences.
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Affiliation(s)
- Muhammad-Zawwad Raza
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69008, France
| | - Octavia Cadassou
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69008, France
| | - Charles Dumontet
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69008, France; Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, F-69495 Pierre Bénite, France
| | - Emeline Cros-Perrial
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69008, France
| | - Lars Petter Jordheim
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69008, France.
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Spanoghe J, Larsen LE, Craey E, Manzella S, Van Dycke A, Boon P, Raedt R. The Signaling Pathways Involved in the Anticonvulsive Effects of the Adenosine A 1 Receptor. Int J Mol Sci 2020; 22:ijms22010320. [PMID: 33396826 PMCID: PMC7794785 DOI: 10.3390/ijms22010320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/22/2020] [Accepted: 12/27/2020] [Indexed: 12/20/2022] Open
Abstract
Adenosine acts as an endogenous anticonvulsant and seizure terminator in the brain. Many of its anticonvulsive effects are mediated through the activation of the adenosine A1 receptor, a G protein-coupled receptor with a wide array of targets. Activating A1 receptors is an effective approach to suppress seizures. This review gives an overview of the neuronal targets of the adenosine A1 receptor focusing in particular on signaling pathways resulting in neuronal inhibition. These include direct interactions of G protein subunits, the adenyl cyclase pathway and the phospholipase C pathway, which all mediate neuronal hyperpolarization and suppression of synaptic transmission. Additionally, the contribution of the guanyl cyclase and mitogen-activated protein kinase cascades to the seizure-suppressing effects of A1 receptor activation are discussed. This review ends with the cautionary note that chronic activation of the A1 receptor might have detrimental effects, which will need to be avoided when pursuing A1 receptor-based epilepsy therapies.
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Affiliation(s)
- Jeroen Spanoghe
- 4Brain, Department of Head and Skin, Ghent University, 9000 Ghent, Belgium; (J.S.); (L.E.L.); (E.C.); (S.M.); (P.B.)
| | - Lars E. Larsen
- 4Brain, Department of Head and Skin, Ghent University, 9000 Ghent, Belgium; (J.S.); (L.E.L.); (E.C.); (S.M.); (P.B.)
| | - Erine Craey
- 4Brain, Department of Head and Skin, Ghent University, 9000 Ghent, Belgium; (J.S.); (L.E.L.); (E.C.); (S.M.); (P.B.)
| | - Simona Manzella
- 4Brain, Department of Head and Skin, Ghent University, 9000 Ghent, Belgium; (J.S.); (L.E.L.); (E.C.); (S.M.); (P.B.)
| | - Annelies Van Dycke
- Department of Neurology, General Hospital Sint-Jan Bruges, 8000 Bruges, Belgium;
| | - Paul Boon
- 4Brain, Department of Head and Skin, Ghent University, 9000 Ghent, Belgium; (J.S.); (L.E.L.); (E.C.); (S.M.); (P.B.)
| | - Robrecht Raedt
- 4Brain, Department of Head and Skin, Ghent University, 9000 Ghent, Belgium; (J.S.); (L.E.L.); (E.C.); (S.M.); (P.B.)
- Correspondence:
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Jain S, Jacobson KA. Purinergic signaling in diabetes and metabolism. Biochem Pharmacol 2020; 187:114393. [PMID: 33359363 DOI: 10.1016/j.bcp.2020.114393] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 12/22/2022]
Abstract
Purinergic signaling, a concept originally formulated by the late Geoffrey Burnstock (1929-2020), was found to modulate pathways in every physiological system. In metabolic disorders there is a role for both adenosine receptors and P2 (nucleotide) receptors, of which there are two classes, i.e. P2Y metabotropic and P2X ionotropic receptors. The individual roles of the 19 receptors encompassed by this family have been dissected - and in many cases the effects associated with specific cell types, including adipocytes, skeletal muscle, liver cells and immune cells. It is suggested that ligands selective for each of the four adenosine receptors (A1, A2A, A2B and A3), and several of the P2 subtypes (e.g. P2Y6 or P2X7 antagonists) might have therapeutic potential for treating diabetes and obesity. This is a developing story with some conflicting conclusions relevant to drug discovery, which we summarize here.
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Affiliation(s)
- Shanu Jain
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD 20892, USA
| | - Kenneth A Jacobson
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD 20892, USA.
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Zhang Y, Rajput A, Jin N, Wang J. Mechanisms of Immunosuppression in Colorectal Cancer. Cancers (Basel) 2020; 12:cancers12123850. [PMID: 33419310 PMCID: PMC7766388 DOI: 10.3390/cancers12123850] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/11/2022] Open
Abstract
Simple Summary More emerging studies are exploring immunotherapy for solid cancers, including colorectal cancer. Besides, checkpoint blockade immunotherapy and chimeric antigen receptor (CAR) -based immune cell therapy have being examined in clinical trials for colorectal cancer patients. However, immunosuppression that leads to the blockage of normal immunosurveillance often leads to cancer development and relapse. In this study, we systematically reviewed the mechanism of immunosuppression, specifically in colorectal cancer, from different perspectives, including the natural or induced immunosuppressive cells, cell surface protein, cytokines/chemokines, transcriptional factors, metabolic alteration, phosphatase, and tissue hypoxia in the tumor microenvironment. We also discussed the progress of immunotherapies in clinical trials/studies for colorectal cancer and highlighted how different strategies for cancer therapy targeted the immunosuppression reviewed above. Our review provides some timely implications for restoring immunosurveillance to improve treatment efficacy in colorectal cancer (CRC). Abstract CRC is the third most diagnosed cancer in the US with the second-highest mortality rate. A multi-modality approach with surgery/chemotherapy is used in patients with early stages of colon cancer. Radiation therapy is added to the armamentarium in patients with locally advanced rectal cancer. While some patients with metastatic CRC are cured, the majority remain incurable and receive palliative chemotherapy as the standard of care. Recently, immune checkpoint blockade has emerged as a promising treatment for many solid tumors, including CRC with microsatellite instability. However, it has not been effective for microsatellite stable CRC. Here, main mechanisms of immunosuppression in CRC will be discussed, aiming to provide some insights for restoring immunosurveillance to improve treatment efficacy in CRC.
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Affiliation(s)
- Yang Zhang
- Department of Cancer Biology and Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA;
| | - Ashwani Rajput
- Johns Hopkins Sidney Kimmel Cancer Center, National Capital Region, Sibley Memorial Hospital, 5255 Loughboro Road NW, Washington, DC 20016, USA;
| | - Ning Jin
- Division of Medical Oncology, Department of Internal Medicine, James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Correspondence: (N.J.); (J.W.); Tel.: +1-614-293-6529 (N.J.); +1-614-293-7733 (J.W.)
| | - Jing Wang
- Department of Cancer Biology and Genetics, James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Correspondence: (N.J.); (J.W.); Tel.: +1-614-293-6529 (N.J.); +1-614-293-7733 (J.W.)
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Trapero C, Martín-Satué M. Purinergic Signaling in Endometriosis-Associated Pain. Int J Mol Sci 2020; 21:E8512. [PMID: 33198179 PMCID: PMC7697899 DOI: 10.3390/ijms21228512] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 12/12/2022] Open
Abstract
Endometriosis is an estrogen-dependent gynecological disease, with an associated chronic inflammatory component, characterized by the presence of endometrial tissue outside the uterine cavity. Its predominant symptom is pain, a condition notably altering the quality of life of women with the disease. This review is intended to exhaustively gather current knowledge on purinergic signaling in endometriosis-associated pain. Altered extracellular ATP hydrolysis, due to changes in ectonucleotidase activity, has been reported in endometriosis; the resulting accumulation of ATP in the endometriotic microenvironment points to sustained activation of nucleotide receptors (P2 receptors) capable of generating a persistent pain message. P2X3 receptor, expressed in sensory neurons, mediates nociceptive, neuropathic, and inflammatory pain, and is enrolled in endometriosis-related pain. Pharmacological inhibition of P2X3 receptor is under evaluation as a pain relief treatment for women with endometriosis. The role of other ATP receptors is also discussed here, e.g., P2X4 and P2X7 receptors, which are involved in inflammatory cell-nerve and microglia-nerve crosstalk, and therefore in inflammatory and neuropathic pain. Adenosine receptors (P1 receptors), by contrast, mainly play antinociceptive and anti-inflammatory roles. Purinome-targeted drugs, including nucleotide receptors and metabolizing enzymes, are potential non-hormonal therapeutic tools for the pharmacological management of endometriosis-related pain.
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Affiliation(s)
- Carla Trapero
- Departament de Patologia i Terapèutica Experimental, Facultat de Medicina i Ciències de la Salut, Campus Bellvitge, Universitat de Barcelona, 08907 Barcelona, Spain;
- Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), Oncobell Program, CIBERONC, 08908 Barcelona, Spain
| | - Mireia Martín-Satué
- Departament de Patologia i Terapèutica Experimental, Facultat de Medicina i Ciències de la Salut, Campus Bellvitge, Universitat de Barcelona, 08907 Barcelona, Spain;
- Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), Oncobell Program, CIBERONC, 08908 Barcelona, Spain
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Costa MA, Matsumoto JPP, Carrettiero DC, Fior-Chadi DR. Adenosine A 1 and A 2a receptors modulate the nitrergic system in cell culture from dorsomedial medulla oblongata. Auton Neurosci 2020; 229:102737. [PMID: 33166836 DOI: 10.1016/j.autneu.2020.102737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 11/24/2022]
Abstract
Adenosine and nitric oxide act on the fine-tuning regulation of neural cardiovascular control in the nucleus tractus solitarius (NTS). Although the interaction between adenosine and NO is well known in the periphery, the mechanisms by which adenosine interferes in the dynamics of nitrergic neurotransmission, related to neural control of circulation, are not completely understood and might be relevant for individuals predisposed to hypertension. In this study we evaluate the interaction between adenosinergic and nitrergic systems in cell culture from the dorsomedial medulla oblongata of Wistar Kyoto (WKY) and spontaneously hypertensive rats (SHR). Using quantification of nitrite levels, RT-PCR analysis and RNA interference we demonstrate that adenosine A1 (A1R) and A2a receptor (A2aR) agonists induce a concentration-dependent decrease and increase of nitrite and nNOS mRNA levels in cultured cells from WKY and SHR, respectively. These effects in nitrite levels are attenuated by the administration of A1R and A2aR selective antagonists, CPT and ZM 241385. Furthermore, knockdown of A1R and A2aR show an increase and decrease of nNOS mRNA levels, respectively. Pretreatment with the nonselective inhibitor of NOS, L-NAME, abolishes nitrite-increased levels triggered by CGS 21680 in WKY and SHR cells. Finally, it is shown that the cAMP-PKA pathway is involved in A1R and A2aR-mediated decrease and increase in nitrite levels in SHR and WKY cells. Our results highlight the influence of adenosine on nitric oxide levels in cultured cells from dorsal medulla oblongata of neonate WKY and SHR rats. In part, the modulatory profile is different in the SHR strain.
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Affiliation(s)
- M A Costa
- Universidade de Sao Paulo, Department of Physiology, Institute of Biosciences, SP, Brazil
| | - J P P Matsumoto
- Universidade de Sao Paulo, Department of Physiology, Institute of Biosciences, SP, Brazil
| | - D C Carrettiero
- Center of Natural Sciences and Humanities, University of ABC, Santo André, SP, Brazil
| | - D R Fior-Chadi
- Universidade de Sao Paulo, Department of Physiology, Institute of Biosciences, SP, Brazil.
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He Y, Zhao Y, Nelson DM, Klippel A, Reily MD. NMR-Based Assay for the Ex Vivo Determination of Soluble CD73 Activity in Serum. Anal Chem 2020; 92:14501-14508. [PMID: 32985862 DOI: 10.1021/acs.analchem.0c02630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Extracellular adenosine, produced through the activity of ecto-5'-nucleotidase CD73, elicits potent immunosuppressive effects, and its upregulation in tumor cells as well as in stromal and immune cell subsets within the tumor microenvironment is hypothesized to represent an important resistance mechanism to current cancer immunotherapies. Soluble CD73 (sCD73) enzymatic activity measured in patient serum or plasma at a baseline is reported to have prognostic as well as predictive relevance, with higher sCD73 activity associating with poor overall and progression-free survival in melanoma patients undergoing anti-PD1 monoclonal antibody treatment. Here, we report a novel NMR-based method that measures the ex-vivo kinetics of sCD73 activity with high specificity and reproducibility and is suitable for future high-throughput implementation. Unlike the existing assays, this method has the advantage of directly and simultaneously measuring the concentration of both the CD73 substrate and product with minimal sample manipulation or special reagents. We establish the utility of the assay for measuring the activity of sCD73 in human serum and show a strong linear correlation between sCD73 protein levels and enzyme activity. Together with our finding that sCD73 appears to be the predominant activity for the generation of adenosine in human blood, our results demonstrate a link between activity and protein levels that will inform future clinical application.
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Affiliation(s)
- Yan He
- Research and Early Development, Bristol Myers Squibb Company, P.O. Box 4000, Princeton, New Jersey 08540, United States
| | - Yue Zhao
- Research and Early Development, Bristol Myers Squibb Company, P.O. Box 4000, Princeton, New Jersey 08540, United States
| | - David M Nelson
- Research and Early Development, Bristol Myers Squibb Company, P.O. Box 4000, Princeton, New Jersey 08540, United States
| | - Anke Klippel
- Research and Early Development, Bristol Myers Squibb Company, P.O. Box 4000, Princeton, New Jersey 08540, United States
| | - Michael D Reily
- Research and Early Development, Bristol Myers Squibb Company, P.O. Box 4000, Princeton, New Jersey 08540, United States
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Scholl JN, Dias CK, Muller L, Battastini AMO, Figueiró F. Extracellular vesicles in cancer progression: are they part of the problem or part of the solution? Nanomedicine (Lond) 2020; 15:2625-2641. [PMID: 33094653 DOI: 10.2217/nnm-2020-0256] [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: 02/06/2023] Open
Abstract
Extracellular vesicles (EVs) are released especially by cancer cells. They modulate the tumor microenvironment by interacting with immune cells while carrying immunosuppressive or immunostimulatory molecules. In this review, we will explore some conflicting reports regarding the immunological outcomes of EVs in cancer progression, in which they might initiate an antitumor immune response or an immunosuppressive response. Concerning immunosuppression, the role of tumor-derived EVs' in the adenosinergic system is underexplored. The enhancement of adenosine (ADO) levels in the tumor microenvironment impairs T-cell function and cytokine release. However, some tumor-derived EVs may deliver immunostimulatory factors, promoting immunogenic activity, even with ADO production. The modulatory role of ADO over the tumor progression represents a piece in an intricate microenvironment with anti and pro tumoral seesaw-like mechanisms.
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Affiliation(s)
- Juliete Nathali Scholl
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Camila Kehl Dias
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Laurent Muller
- Department of Otolaryngology, Head & Neck Surgery, University of Basel, Basel, 4031, Switzerland
| | - Ana Maria Oliveira Battastini
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Fabrício Figueiró
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, 90035-003, Brazil.,Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
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Moreira-de-Sá A, Gonçalves FQ, Lopes JP, Silva HB, Tomé ÂR, Cunha RA, Canas PM. Adenosine A 2A receptors format long-term depression and memory strategies in a mouse model of Angelman syndrome. Neurobiol Dis 2020; 146:105137. [PMID: 33049319 DOI: 10.1016/j.nbd.2020.105137] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/03/2020] [Accepted: 10/09/2020] [Indexed: 12/12/2022] Open
Abstract
Angelman syndrome (AS) is a neurodevelopmental disorder caused by loss of function of the maternally inherited Ube3a neuronal protein, whose main features comprise severe intellectual disabilities and motor impairments. Previous studies with the Ube3am-/p+ mouse model of AS revealed deficits in synaptic plasticity and memory. Since adenosine A2A receptors (A2AR) are powerful modulators of aberrant synaptic plasticity and A2AR blockade prevents memory dysfunction in various brain diseases, we tested if A2AR could control deficits of memory and hippocampal synaptic plasticity in AS. We observed that Ube3am-/p+ mice were unable to resort to hippocampal-dependent search strategies when tested for learning and memory in the Morris water maze; this was associated with a decreased magnitude of long-term depression (LTD) in CA1 hippocampal circuits. There was an increased density of A2AR in the hippocampus of Ube3am-/p+ mice and their chronic treatment with the selective A2AR antagonist SCH58261 (0.1 mg/kg/day, ip) restored both hippocampal-dependent learning strategies, as well as LTD deficits. Altogether, this study provides the first evidence of a role of A2AR as a new prospective therapeutic target to manage learning deficits in AS.
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Affiliation(s)
- Ana Moreira-de-Sá
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal; Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Francisco Q Gonçalves
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - João P Lopes
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Henrique B Silva
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal; Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Ângelo R Tomé
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal; Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Rodrigo A Cunha
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal; Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Paula M Canas
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal.
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45
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Ferreira-Silva J, Aires ID, Boia R, Ambrósio AF, Santiago AR. Activation of Adenosine A 3 Receptor Inhibits Microglia Reactivity Elicited by Elevated Pressure. Int J Mol Sci 2020; 21:ijms21197218. [PMID: 33007835 PMCID: PMC7582754 DOI: 10.3390/ijms21197218] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 01/22/2023] Open
Abstract
Glaucoma is a progressive chronic retinal degenerative disease and a leading cause of global irreversible blindness, characterized by optic nerve damage and retinal ganglion cell (RGC) death. Elevated intraocular pressure (IOP) is a main risk factor of glaucoma. Neuroinflammation plays an important role in glaucoma. We have been demonstrating that elevated pressure triggers microglia reactivity that contribute to the loss of RGCs. Adenosine, acting on adenosine receptors, is a crucial modulator of microglia phenotype. Microglia express all adenosine receptors. Previously, we demonstrated that the activation of adenosine A3 receptor (A3R) affords protection to the retina, including RGCs, unveiling the possibility for a new strategy for glaucoma treatment. Since microglial cells express A3R, we now studied the ability of a selective A3R agonist (2-Cl-IB-MECA) in controlling microglia reactivity induced by elevated hydrostatic pressure (EHP), used to mimic elevated IOP. The activation of A3R reduced EHP-induced inducible nitric oxide synthase (iNOS) expression, microglia migration and phagocytosis in BV-2 cells. In retinal microglia, proliferation and phagocytosis elicited by EHP were also decreased by A3R activation. This work demonstrates that 2-Cl-IB-MECA, the selective agonist of A3R, is able to hinder microglia reactivity, suggesting that A3R agonists could afford protection against glaucomatous degeneration through the control of neuroinflammation.
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Affiliation(s)
- Joana Ferreira-Silva
- Coimbra Institute for Clinical and Biomedical Research (ICBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (J.F.-S.); (I.D.A.); (R.B.); (A.F.A.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-548 Coimbra, Portugal
| | - Inês D. Aires
- Coimbra Institute for Clinical and Biomedical Research (ICBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (J.F.-S.); (I.D.A.); (R.B.); (A.F.A.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-548 Coimbra, Portugal
| | - Raquel Boia
- Coimbra Institute for Clinical and Biomedical Research (ICBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (J.F.-S.); (I.D.A.); (R.B.); (A.F.A.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-548 Coimbra, Portugal
| | - António Francisco Ambrósio
- Coimbra Institute for Clinical and Biomedical Research (ICBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (J.F.-S.); (I.D.A.); (R.B.); (A.F.A.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-548 Coimbra, Portugal
- Association for Innovation and Biomedical Research on Light and Image, 3000-548 Coimbra, Portugal
| | - Ana Raquel Santiago
- Coimbra Institute for Clinical and Biomedical Research (ICBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (J.F.-S.); (I.D.A.); (R.B.); (A.F.A.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-548 Coimbra, Portugal
- Association for Innovation and Biomedical Research on Light and Image, 3000-548 Coimbra, Portugal
- Correspondence: ; Tel.: +351-239480226
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Rodas L, Martinez S, Aguilo A, Tauler P. Caffeine supplementation induces higher IL-6 and IL-10 plasma levels in response to a treadmill exercise test. J Int Soc Sports Nutr 2020; 17:47. [PMID: 32907591 PMCID: PMC7487741 DOI: 10.1186/s12970-020-00375-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND An acute bout of exercise induces an inflammatory response characterized by increases in several cytokines. Caffeine ingestion could modify this inflammatory response. The aim of this study was to determine the effects of caffeine supplementation on plasma levels of cytokines, mainly IL-10 and IL-6, in response to exercise. METHODS In a randomized, crossover, double-blinded study design, thirteen healthy, well-trained recreational male athletes performed, on two different occasions, a treadmill exercise test (60 min at 70% VO2max) after ingesting 6 mg/kg body mass of caffeine or placebo. Blood samples were taken before exercising, immediately after finishing and 2 h after finishing the exercise. Plasma concentrations of IL-10, IL-6, IL-1β, IL-1ra, IL-4, IL-8, IL-12 and IFN-γ, adrenaline, cortisol and cyclic adenosine monophosphate (cAMP) were determined. The capacity of whole blood cultures to produce cytokines in response to endotoxin (LPS) was also determined. Changes in blood variables were analyzed using a time (pre-exercise, post-exercise, recovery) x condition (caffeine, placebo) within-between subjects ANOVA with repeated measures. RESULTS Caffeine supplementation induced higher adrenaline levels in the supplemented participants after exercise (257.3 ± 53.2 vs. 134.0 ± 25.7 pg·mL- 1, p = 0.03) and higher cortisol levels after recovery (46.4 ± 8.5 vs. 32.3 ± 5.6 pg·mL- 1, p = 0.007), but it did not influence plasma cAMP levels (p = 0.327). The exercise test induced significant increases in IL-10, IL-6, IL-1ra, IL-4, IL-8, IL-12 and IFN-γ plasma levels, with IL-6 and IL-10 levels remaining high after recovery. Caffeine supplementation influenced only IL-6 (3.04 ± 0.40 vs. 3.89 ± 0.62 pg·mL- 1, p = 0.003) and IL-10 (2.42 ± 0.54 vs. 3.47 ± 0.72 pg·mL- 1, p = 0.01) levels, with higher concentrations after exercise in the supplemented condition. No effect of caffeine was observed on the in vitro stimulated cytokine production. CONCLUSIONS The results of the present study indicate a significant influence of caffeine supplementation increasing the response to exercise of two essential cytokines such as IL-6 and IL-10. However, caffeine did not influence changes in the plasma levels of other cytokines measured and the in vitro-stimulated cytokine production.
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Affiliation(s)
- Lluis Rodas
- Research Group on Evidence, Lifestyles & Health, Department of Fundamental Biology and Health Sciences, Research Institute on Health Sciences (IUNICS). University of the Balearic Islands, Crta de Valldemossa, Km 7.5, E-07122, Palma, Spain
| | - Sonia Martinez
- Research Group on Evidence, Lifestyles & Health, Department of Nursing and Physiotherapy, Research Institute on Health Sciences (IUNICS). University of the Balearic Islands, Crta de Valldemossa, Km 7.5, E-07122, Palma, Spain. .,Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain.
| | - Antoni Aguilo
- Research Group on Evidence, Lifestyles & Health, Department of Nursing and Physiotherapy, Research Institute on Health Sciences (IUNICS). University of the Balearic Islands, Crta de Valldemossa, Km 7.5, E-07122, Palma, Spain.,Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Pedro Tauler
- Research Group on Evidence, Lifestyles & Health, Department of Fundamental Biology and Health Sciences, Research Institute on Health Sciences (IUNICS). University of the Balearic Islands, Crta de Valldemossa, Km 7.5, E-07122, Palma, Spain.,Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
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Oseid DE, Song L, Lear S, Robinson AS. Nuclear translocation of the unliganded glucocorticoid receptor is influenced by membrane fluidity, but not A 2AR agonism. Steroids 2020; 160:108641. [PMID: 32289327 DOI: 10.1016/j.steroids.2020.108641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/25/2020] [Accepted: 04/03/2020] [Indexed: 01/22/2023]
Abstract
Epidemiological evidence suggests that chronic consumption of caffeine, a non-selective antagonist of adenosine A2AR receptors (A2AR), can be neuroprotective in a number of age-related neurodegenerative disorders including Alzheimer's disease. A growing body of work shows that this neuroprotection may act via a synergistic interaction with the glucocorticoid receptor (GR) and its associated genetic response elements. Therefore, we hypothesized that A2AR signaling may directly stimulate glucocorticoid receptor translocation via downstream signaling elements within the cell. Surprisingly, we found no effect of A2AR agonism on GR translocation in the absence of steroid. As expected, membrane-bound dexamethasone was capable of stimulating full GR translocation, albeit at a slower rate. This non-liganded translocation was unaffected by A2AR ligands, providing strong evidence that GR translocation occurs independently of activation of A2ARs. To identify other potential mechanisms of translocation, membrane fluidity was increased significantly by benzyl alcohol, which also induced full nuclear translocation of the GR, but unlike the membrane-bound dexamethasone, benzyl alcohol did result in transcriptional upregulation of GR-dependent genes. Taken together, our data shows that the unliganded GR is sensitive to changes in membrane state and can be transcriptionally active.
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Affiliation(s)
- Daniel E Oseid
- Tulane Brain Institute, Tulane University, New Orleans, LA 70118, USA
| | - Liqing Song
- Department of Chemical Engineering, Carnegie Mellon, Pittsburgh, PA, 15213, USA
| | - Sierra Lear
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, USA
| | - Anne S Robinson
- Tulane Brain Institute, Tulane University, New Orleans, LA 70118, USA; Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, USA; Department of Chemical Engineering, Carnegie Mellon, Pittsburgh, PA, 15213, USA.
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48
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Taliani S, Da Settimo F, Martini C, Laneri S, Novellino E, Greco G. Exploiting the Indole Scaffold to Design Compounds Binding to Different Pharmacological Targets. Molecules 2020; 25:molecules25102331. [PMID: 32429433 PMCID: PMC7287756 DOI: 10.3390/molecules25102331] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 12/14/2022] Open
Abstract
Several indole derivatives have been disclosed by our research groups that have been collaborating for nearly 25 years. The results of our investigations led to a variety of molecules binding selectively to different pharmacological targets, specifically the type A γ-aminobutyric acid (GABAA) chloride channel, the translocator protein (TSPO), the murine double minute 2 (MDM2) protein, the A2B adenosine receptor (A2B AR) and the Kelch-like ECH-associated protein 1 (Keap1). Herein, we describe how these works were conceived and carried out thanks to the versatility of indole nucleus to be exploited in the design and synthesis of drug-like molecules.
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Affiliation(s)
- Sabrina Taliani
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano, 6, 56126 Pisa, Italy; (F.D.S.); (C.M.)
- Correspondence: (S.T.); (G.G.); Tel.: +39-050-2219547 (S.T.); +39-081-678645 (G.G.)
| | - Federico Da Settimo
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano, 6, 56126 Pisa, Italy; (F.D.S.); (C.M.)
| | - Claudia Martini
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano, 6, 56126 Pisa, Italy; (F.D.S.); (C.M.)
| | - Sonia Laneri
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano, 49, 80131 Naples, Italy; (S.L.); (E.N.)
| | - Ettore Novellino
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano, 49, 80131 Naples, Italy; (S.L.); (E.N.)
| | - Giovanni Greco
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano, 49, 80131 Naples, Italy; (S.L.); (E.N.)
- Correspondence: (S.T.); (G.G.); Tel.: +39-050-2219547 (S.T.); +39-081-678645 (G.G.)
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49
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Maksimovic V, Pavlovic-Popovic Z, Vukmirovic S, Cvejic J, Mooranian A, Al-Salami H, Mikov M, Golocorbin-Kon S. Molecular mechanism of action and pharmacokinetic properties of methotrexate. Mol Biol Rep 2020; 47:4699-4708. [PMID: 32415503 DOI: 10.1007/s11033-020-05481-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 04/30/2020] [Indexed: 12/21/2022]
Abstract
Since its discovery in 1945, methotrexate has become a standard therapy for number of diseases, including oncological, inflammatory and pulmonary ones. Major physiological interactions of methotrexate include folate pathway, adenosine, prostaglandins, leukotrienes and cytokines. Methotrexate is used in treatment of pulmonary sarcoidosis as a second line therapy and is drug of choice in patients who are not candidates for corticosteroid therapy, with recommended starting weekly dose of 5-15 mg. Number of studies dealt with methotrexate use in rheumatoid arthritis and oncological patients. Authors are conducting research on oral methotrexate use and pharmacokinetics in chronic sarcoidosis patients and have performed literature research to better understand molecular mechanisms of methotrexate action as well as high level pharmacokinetic considerations. Polyglutamation of methotrexate affects its pharmacokinetic and pharmacodynamic properties and prolongs its effect. Bile excretion plays significant role due to extensive enterohepatic recirculation, although majority of methotrexate is excreted through urine. Better understanding of its pharmacokinetic properties in sarcoidosis patients warrant optimizing therapy when corticosteroids are contraindicated in these patients.
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Affiliation(s)
- V Maksimovic
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000, Novi Sad, Serbia.
| | - Z Pavlovic-Popovic
- Institute of Pulmonary Diseases, Sremska Kamenica, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - S Vukmirovic
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000, Novi Sad, Serbia
| | - J Cvejic
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - A Mooranian
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Australia
| | - H Al-Salami
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Australia
| | - M Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000, Novi Sad, Serbia
| | - S Golocorbin-Kon
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
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Ramos AC, de Mattos Hungria F, Camerini BA, Suiama MA, Calzavara MB. Potential beneficial effects of caffeine administration in the neonatal period of an animal model of schizophrenia. Behav Brain Res 2020; 391:112674. [PMID: 32417274 DOI: 10.1016/j.bbr.2020.112674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 04/03/2020] [Accepted: 04/24/2020] [Indexed: 12/17/2022]
Abstract
Obstetric complications, like maternal hypertension and neonatal hypoxia, disrupt brain development, leading to psychiatry disorders later in life, like schizophrenia. The exact mechanisms behind this risk are not yet well known. Spontaneously hypertensive rats (SHR) are a well-established model to study neurodevelopment of schizophrenia since they exhibit behavioral alterations mimicking schizophrenia that can be improved with antipsychotic drugs. SHR mothers are hypertensive, and the SHR offspring develop in preeclampsia-like conditions. Hypoxic conditions increase levels of adenosine, which play an important role in brain development. The enhanced levels of adenosine at birth could be related to the future development of schizophrenia. To investigate this hypothesis adenosine levels of brain neonatal Wistar rats and SHR were quantified. After that, caffeine, an antagonist of adenosinergic system, was administrated on PND (postnatal day) 7 (neurodevelopmental age similar to a human at delivery) and rats were observed at adolescent and adult ages. We also investigated the acute effects of caffeine at adolescent and adult ages. SHR control adolescent and adult groups presented behavioral deficits like hyperlocomotion, deficit in social interaction (SI), and contextual fear conditioning (CFC). In SHR, neonatal caffeine treatment on PND 7 normalized hyperlocomotion, improved SI, and CFC observed at adolescent period and adult ages, showing a beneficial effect on schizophrenia-like behaviors. Wistar rats neonatally treated with caffeine exhibited hyperlocomotion, deficit in SI and CFC when observed at adolescent and adult ages. Acutely caffeine treatment administrated at adolescent and adult ages increased locomotion and decreased SI time of Wistar rats and impair CFC in adult Wistars. No effects were observed in SHR. In conclusion, caffeine can be suggested as a useful drug to prevent behavioral deficits observed in this animal model of prenatal hypoxia-induced schizophrenia profile when specifically administered on PND 7.
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Affiliation(s)
- Aline Camargo Ramos
- Department of Psychiatry, Universidade Federal De São Paulo, São Paulo, SP, Brazil
| | | | | | - Mayra Akimi Suiama
- Department of Pharmacology, Universidade Federal De São Paulo, São Paulo, SP, Brazil
| | - Mariana Bendlin Calzavara
- Department of Psychiatry, Universidade Federal De São Paulo, São Paulo, SP, Brazil; School of Medicine from Faculdade Israelita De Ciências Da Saúde Albert Einstein, São Paulo, SP, Brazil.
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