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MicroRNA: Crucial modulator in purinergic signalling involved diseases. Purinergic Signal 2023; 19:329-341. [PMID: 35106737 PMCID: PMC9984628 DOI: 10.1007/s11302-022-09840-y] [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: 11/02/2021] [Accepted: 01/03/2022] [Indexed: 12/13/2022] Open
Abstract
Both microRNAs (miRNAs) and purinergic signalling are widely and respectively expressed in various tissues of different organisms and play vital roles in a variety of physiological and pathological processes. Here, we reviewed the current publications contributed to the relationship of miRNAs and purinergic signalling in cardiovascular diseases, gastrointestinal diseases, neurological diseases, and ophthalmic diseases. We tried to decode the miRNAs-purinergic signalling network of purinergic signalling involved diseases. The evidence indicated that more than 30 miRNAs (miR-22, miR-30, miR-146, miR-150, miR-155, miR-187, etc.) directly or indirectly modulate P1 receptors (A1, A2A, A2B, A3), P2 receptors (P2X1, P2X3, P2X4, P2X7, P2Y2, P2Y6, P2Y12), and ecto-enzymes (CD39, CD73, ADA2); P2X7 and CD73 could be modulated by multiple miRNAs (P2X7: miR-21, miR-22, miR-30, miR-135a, miR-150, miR-186, miR-187, miR-216b; CD73: miR-141, miR-101, miR-193b, miR-340, miR-187, miR-30, miR-422a); miR-187 would be the common miRNA to modulate P2X7 and CD73.
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2
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Vaghari-Tabari M, Targhazeh N, Moein S, Qujeq D, Alemi F, Majidina M, Younesi S, Asemi Z, Yousefi B. From inflammatory bowel disease to colorectal cancer: what's the role of miRNAs? Cancer Cell Int 2022; 22:146. [PMID: 35410210 PMCID: PMC8996392 DOI: 10.1186/s12935-022-02557-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 03/21/2022] [Indexed: 12/27/2022] Open
Abstract
Inflammatory Bowel Disease (IBD) is a chronic inflammatory disease with relapse and remission periods. Ulcerative colitis and Crohn's disease are two major forms of the disease. IBD imposes a lot of sufferings on the patient and has many consequences; however, the most important is the increased risk of colorectal cancer, especially in patients with Ulcerative colitis. This risk is increased with increasing the duration of disease, thus preventing the progression of IBD to cancer is very important. Therefore, it is necessary to know the details of events contributed to the progression of IBD to cancer. In recent years, the importance of miRNAs as small molecules with 20-22 nucleotides has been recognized in pathophysiology of many diseases, in which IBD and colorectal cancer have not been excluded. As a result, the effectiveness of these small molecules as therapeutic target is hopefully confirmed. This paper has reviewed the related studies and findings about the role of miRNAs in the course of events that promote the progression of IBD to colorectal carcinoma, as well as a review about the effectiveness of some of these miRNAs as therapeutic targets.
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Affiliation(s)
- Mostafa Vaghari-Tabari
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Niloufar Targhazeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soheila Moein
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Biochemistry, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Durdi Qujeq
- Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Department of Clinical Biochemistry, Babol University of Medical Sciences, Babol, Iran
| | - Forough Alemi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Majidina
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Simin Younesi
- Schoole of Health and Biomedical Sciences, RMIT University, Melborne, VIC, Australia
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran.
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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3
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Fang G, Zhou Y, Zhou X, Zhou H, Ge YY, Luo S, Chen JF, Zhang L. The adenosine A 2A receptor antagonist protects against retinal mitochondrial injury in association with an altered network of competing endogenous RNAs. Neuropharmacology 2022; 208:108981. [PMID: 35149135 DOI: 10.1016/j.neuropharm.2022.108981] [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: 09/16/2021] [Revised: 01/27/2022] [Accepted: 01/31/2022] [Indexed: 10/19/2022]
Abstract
Blockade of adenosine A2A receptors (A2ARs) protects against neuronal damage caused by various brain insults including mitochondrial toxicity, but the precise neuroprotective mechanisms are unclear. Here, we studied the effects of the A2AR antagonist KW6002 on retinal injury induced by the mitochondrial oxidative phosphorylation uncoupler, carbonylcyanide m-chlorophenyl hydrazine (CCCP) and alterations in competing endogenous RNA (ceRNA) network. We found that KW6002 treatment partially reversed CCCP-induced reduction in retinal thickness and retinal ganglia cell number by increasing mitochondrial content and reducing retinal ganglia cells apoptosis. Furthermore, we employed whole-transcriptome sequencing to explore ceRNA network changes associated with CCCP-induced retinal injury and its reversal by KW6002. This analysis revealed that A2AR blockade reduced the number of CCCP-induced microRNAs by ∼60%, but increased the number of CCCP-induced circular RNAs by ∼50%. Among CeRNA network changes, CCCP-induced retinal injury was associated with a possible enrichment of the tumor necrosis factor signaling pathway and its related 126 microRNAs, 237 long non-coding RNAs, 58 circular RNAs competing. Moreover, the A2AR antagonist-mediated protection against CCCP-induced retinal injury was possibly associated with the up-regulation of mature brain-derived neurotrophic factor and its related 4 microRNAs competed by 43 long non-coding RNAs and 9 circular RNAs competing. These ceRNA network alterations by CCCP treatment and its reversal by A2AR antagonist may contribute to understanding the transcriptome mechanism for protection against CCCP-induced retinal injury by A2AR antagonists.
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Affiliation(s)
- Gengjing Fang
- The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, The State Key Laboratory of Ophthalmology, Optometry and Vision Science, School of Optometry and Ophthalmology, Wenzhou Medical University, Wenzhou, 325000, China
| | - Yuling Zhou
- The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, The State Key Laboratory of Ophthalmology, Optometry and Vision Science, School of Optometry and Ophthalmology, Wenzhou Medical University, Wenzhou, 325000, China
| | - Xiaopeng Zhou
- The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, The State Key Laboratory of Ophthalmology, Optometry and Vision Science, School of Optometry and Ophthalmology, Wenzhou Medical University, Wenzhou, 325000, China
| | - Hui Zhou
- The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, The State Key Laboratory of Ophthalmology, Optometry and Vision Science, School of Optometry and Ophthalmology, Wenzhou Medical University, Wenzhou, 325000, China
| | - Yuan-Yuan Ge
- The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, The State Key Laboratory of Ophthalmology, Optometry and Vision Science, School of Optometry and Ophthalmology, Wenzhou Medical University, Wenzhou, 325000, China
| | - Shengtao Luo
- The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, The State Key Laboratory of Ophthalmology, Optometry and Vision Science, School of Optometry and Ophthalmology, Wenzhou Medical University, Wenzhou, 325000, China
| | - Jiang-Fan Chen
- The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, The State Key Laboratory of Ophthalmology, Optometry and Vision Science, School of Optometry and Ophthalmology, Wenzhou Medical University, Wenzhou, 325000, China.
| | - Liping Zhang
- The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, The State Key Laboratory of Ophthalmology, Optometry and Vision Science, School of Optometry and Ophthalmology, Wenzhou Medical University, Wenzhou, 325000, China.
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Moreira-de-Sá A, Lourenço VS, Canas PM, Cunha RA. Adenosine A 2A Receptors as Biomarkers of Brain Diseases. Front Neurosci 2021; 15:702581. [PMID: 34335174 PMCID: PMC8322233 DOI: 10.3389/fnins.2021.702581] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/22/2021] [Indexed: 12/12/2022] Open
Abstract
Extracellular adenosine is produced with increased metabolic activity or stress, acting as a paracrine signal of cellular effort. Adenosine receptors are most abundant in the brain, where adenosine acts through inhibitory A1 receptors to decrease activity/noise and through facilitatory A2A receptors (A2AR) to promote plastic changes in physiological conditions. By bolstering glutamate excitotoxicity and neuroinflammation, A2AR also contribute to synaptic and neuronal damage, as heralded by the neuroprotection afforded by the genetic or pharmacological blockade of A2AR in animal models of ischemia, traumatic brain injury, convulsions/epilepsy, repeated stress or Alzheimer's or Parkinson's diseases. A2AR overfunction is not only necessary for the expression of brain damage but is actually sufficient to trigger brain dysfunction in the absence of brain insults or other disease triggers. Furthermore, A2AR overfunction seems to be an early event in the demise of brain diseases, which involves an increased formation of ATP-derived adenosine and an up-regulation of A2AR. This prompts the novel hypothesis that the evaluation of A2AR density in afflicted brain circuits may become an important biomarker of susceptibility and evolution of brain diseases once faithful PET ligands are optimized. Additional relevant biomarkers would be measuring the extracellular ATP and/or adenosine levels with selective dyes, to identify stressed regions in the brain. A2AR display several polymorphisms in humans and preliminary studies have associated different A2AR polymorphisms with altered morphofunctional brain endpoints associated with neuropsychiatric diseases. This further prompts the interest in exploiting A2AR polymorphic analysis as an ancillary biomarker of susceptibility/evolution of brain diseases.
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Affiliation(s)
- Ana Moreira-de-Sá
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Vanessa S Lourenço
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Paula M Canas
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Rodrigo A Cunha
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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Jia X, Wei Y, Miao X, Zhu T, Hu X, Lin Z, Xiao W, Zhang Y, Wang Z, Gong W. Deficiency of miR-15a/16 upregulates NKG2D in CD8 + T cells to exacerbate dextran sulfate sodium-induced colitis. Biochem Biophys Res Commun 2021; 554:114-122. [PMID: 33784506 DOI: 10.1016/j.bbrc.2021.03.090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 03/16/2021] [Indexed: 01/04/2023]
Abstract
The miR-15a/16 gene cluster is located in human chromosome 13 (13q14.3) and mouse chromosome 14 (14qC3). These genes are involved in cancer development and immune regulation. Our group has previously verified the binding of the 3'-untranslated region of NKG2D gene by miR-16 through dual-luciferase reporter assay. Herein, we found that miR-16 overexpression inhibited the NKG2D expression of CD8+ T cells, and that CD8+ NKG2D+ T cell frequency increased in miR-15/16-/- mice. CD8+ NKG2D+ T cells derived of miR-15/16-/- mice displayed activatory phenotype with enhanced IFN-γ production and cytotoxicity. The transfection of lentivirus containing antago-miR-16 sequences enhanced the NKG2D expression level of CD8+ T cells. However, no significant differences in CD8+ NKG2D+ T cell frequencies existed between wild-type and miR-15/16-transgenic mice because NKG2D was not expressed on the rest CD8+ T cells. When CD8+ T cells of miR-15/16-transgenic mice were treated with IL-2 in vitro, the magnitude of NKG2D expression and activation of CD8+ T cells was lower than that of wild-type mice. miR-15/16-/- mice showed that the exacerbation of colitis induced by dextran sulfate sodium (DSS) with more CD8+ T cells accumulated in inflamed colons, whereas miR-15/16-transgenic mice ameliorated DSS-induced colitis with less infiltration of CD8+ T cells. When NKG2D+ cells were depleted with NKG2D antibody in miR-15/16-/- mice, the aggravated colitis disappeared. All these results demonstrated that NKG2D could be upregulated by decreased miR-16 in CD8+ T cells to mediate inflammation. Thus, gene therapy based on the overexpression of miR-16 in CD8+ T cells can be used for patients with inflammatory diseases.
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Affiliation(s)
- Xiaoqin Jia
- Department of Basic Medicine, School of Medicine, Yangzhou University, China
| | - Yingying Wei
- Department of Basic Medicine, School of Medicine, Yangzhou University, China
| | - Xin Miao
- Department of Basic Medicine, School of Medicine, Yangzhou University, China
| | - Tao Zhu
- Department of Basic Medicine, School of Medicine, Yangzhou University, China
| | - Xiangyu Hu
- Department of Basic Medicine, School of Medicine, Yangzhou University, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, China
| | - Zhijie Lin
- Department of Basic Medicine, School of Medicine, Yangzhou University, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, China
| | - Weiming Xiao
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, China; Department of General Surgery, Affiliated Hospital, Yangzhou University, China
| | - Yu Zhang
- Jiangsu Key Laboratory of Zoonosis, Yangzhou University, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China
| | - Zhengbing Wang
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, China; Department of General Surgery, Affiliated Hospital, Yangzhou University, China.
| | - Weijuan Gong
- Department of Basic Medicine, School of Medicine, Yangzhou University, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, China; Department of General Surgery, Affiliated Hospital, Yangzhou University, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou University, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China.
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6
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Boknik P, Eskandar J, Hofmann B, Zimmermann N, Neumann J, Gergs U. Role of Cardiac A 2A Receptors Under Normal and Pathophysiological Conditions. Front Pharmacol 2021; 11:627838. [PMID: 33574762 PMCID: PMC7871008 DOI: 10.3389/fphar.2020.627838] [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: 11/10/2020] [Accepted: 12/15/2020] [Indexed: 12/12/2022] Open
Abstract
This review presents an overview of cardiac A2A-adenosine receptors The localization of A2A-AR in the various cell types that encompass the heart and the role they play in force regulation in various mammalian species are depicted. The putative signal transduction systems of A2A-AR in cells in the living heart, as well as the known interactions of A2A-AR with membrane-bound receptors, will be addressed. The possible role that the receptors play in some relevant cardiac pathologies, such as persistent or transient ischemia, hypoxia, sepsis, hypertension, cardiac hypertrophy, and arrhythmias, will be reviewed. Moreover, the cardiac utility of A2A-AR as therapeutic targets for agonistic and antagonistic drugs will be discussed. Gaps in our knowledge about the cardiac function of A2A-AR and future research needs will be identified and formulated.
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Affiliation(s)
- P. Boknik
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät, Westfälische Wilhelms-Universität, Münster, Germany
| | - J. Eskandar
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät, Westfälische Wilhelms-Universität, Münster, Germany
| | - B. Hofmann
- Cardiac Surgery, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - N. Zimmermann
- Bundesinstitut für Arzneimittel und Medizinprodukte, Bonn, Germany
| | - J. Neumann
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - U. Gergs
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
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7
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Duarte IDAE, Milenkovic D, Borges TKDS, Rosa AJDM, Morand C, de Oliveira LDL, Costa AM. Acute Effects of the Consumption of Passiflora setacea Juice on Metabolic Risk Factors and Gene Expression Profile in Humans. Nutrients 2020; 12:nu12041104. [PMID: 32316129 PMCID: PMC7231153 DOI: 10.3390/nu12041104] [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: 03/14/2020] [Revised: 03/26/2020] [Accepted: 03/31/2020] [Indexed: 12/15/2022] Open
Abstract
Background: Passiflora setacea (PS) is a passionfruit variety of the Brazilian savannah and is a rich source of plant food bioactives with potential anti-inflammatory activity. This study aimed to investigate the effect of an acute intake of PS juice upon inflammation, metabolic parameters, and gene expression on circulating immune cells in humans. Methods: Overweight male volunteers (n = 12) were enrolled in two double-blind placebo-controlled studies. Blood samples were collected from fasting volunteers 3 h after the consumption of 250 mL of PS juice or placebo (PB). Metabolic parameters (insulin, glucose, total cholesterol, high-density lipoprotein (LDL), high-density lipoprotein (HDL), and total triglycerides) and circulating cytokines were evaluated (study 1). Peripheral blood mononuclear cell (PBMC) from the same subjects were isolated and RNA was extracted for transcriptomic analyses using microarrays (study 2). Results: Insulin and homeostatic model assessment for insulin resistance (HOMA-IR) levels decreased statistically after the PS juice intake, whereas HDL level increased significantly. Interleukin (IL)-17A level increased after placebo consumption, whereas its level remained unchanged after PS juice consumption. Nutrigenomic analyses revealed 1327 differentially expressed genes after PS consumption, with modulated genes involved in processes such as inflammation, cell adhesion, or cytokine–cytokine receptor. Conclusion: Taken together, these clinical results support the hypothesis that PS consumption may help the prevention of cardiometabolic diseases.
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Affiliation(s)
- Isabella de Araújo Esteves Duarte
- Postgraduate Program in Human Nutrition, College of Health Sciences, Campus Universitário Darcy Ribeiro, Universidade de Brasília, Brasília DF 70.910-900, Brazil;
- Correspondence: ; Tel.: +55-61-99996-8004
| | - Dragan Milenkovic
- Unité de Nutrition Humaine, Université Clermont Auvergne, INRAE, UNH, F-63000 Clermont-Ferrand, France; (D.M.); (C.M.)
- Department of Internal Medicine, Division of Cardiovascular Medicine, School of Medicine, University of California Davis, Davis, CA 95616, USA
| | | | | | - Christine Morand
- Unité de Nutrition Humaine, Université Clermont Auvergne, INRAE, UNH, F-63000 Clermont-Ferrand, France; (D.M.); (C.M.)
| | - Livia de Lacerda de Oliveira
- Postgraduate Program in Human Nutrition, College of Health Sciences, Campus Universitário Darcy Ribeiro, Universidade de Brasília, Brasília DF 70.910-900, Brazil;
| | - Ana Maria Costa
- Laboratory of Food Science, Embrapa Cerrados, Planaltina DF 73.310-970, Brazil; (A.J.d.M.R.); (A.M.C.)
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Erblang M, Drogou C, Gomez-Merino D, Metlaine A, Boland A, Deleuze JF, Thomas C, Sauvet F, Chennaoui M. The Impact of Genetic Variations in ADORA2A in the Association between Caffeine Consumption and Sleep. Genes (Basel) 2019; 10:E1021. [PMID: 31817803 PMCID: PMC6947650 DOI: 10.3390/genes10121021] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/26/2019] [Accepted: 12/05/2019] [Indexed: 02/06/2023] Open
Abstract
ADORA2A has been shown to be responsible for the wakefulness-promoting effect of caffeine and the 1976T>C genotype (SNP rs5751876, formerly 1083T>C) to contribute to individual sensitivity to caffeine effects on sleep. We investigate the association between six single nucleotide polymorphisms (SNP) from ADORA2A and self-reported sleep characteristics and caffeine consumption in 1023 active workers of European ancestry aged 18-60 years. Three groups of caffeine consumers were delineated: low (0-50 mg/day, less than one expresso per day), moderate (51-300 mg/day), and high (>300 mg/day). We found that at caffeine levels higher than 300 mg/day, total sleep time (TST) decreased (F = 13.9, p < 0.01), with an increase of insomnia (ORa [95%CI] = 1.5 [1.1-1.9]) and sleep complaints (ORa [95%CI] = 1.9 [1.1-3.3]), whatever the ADORA2A polymorphism. Odds ratios were adjusted (ORa) for sex, age, and tobacco. However, in low caffeine consumers, lower TST was observed in the T allele compared to homozygote rs5751876 and rs3761422 C carriers. Conversely, higher TST was observed in rs2298383 T allele compared to C and in rs4822492G allele compared to the homozygote C (p < 0.05). These 4 SNPs are in strong linkage disequilibrium. Haplotype analysis confirmed the influence of multiple ADORA2a SNPs on TST. In addition, the rs2298383 T and rs4822492 G alleles were associated with higher risk of sleep complaints (Ora = 1.9 [1.2-3.1] and Ora = 1.5 [1.1-2.1]) and insomnia (Ora = 1.5 [1.3-2.5] and Ora = 1.9 [1.3-3.2). The rs5751876 T allele was associated with a decreased risk of sleep complaints (Ora = 0.7 [0.3-0.9]) and insomnia (Ora = 0.5 [0.3-0.9]). Our results identified ADORA2A polymorphism influences in the less-than-300-mg-per-day caffeine consumers. This opens perspectives on the diagnosis and pharmacology of sleep complaints and caffeine chronic consumption.
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Affiliation(s)
- Mégane Erblang
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées (IRBA), EA 7330 VIFASOM, Université de Paris, 75004 Paris, France; (M.E.); (C.D.); (D.G.-M.); (F.S.)
| | - Catherine Drogou
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées (IRBA), EA 7330 VIFASOM, Université de Paris, 75004 Paris, France; (M.E.); (C.D.); (D.G.-M.); (F.S.)
| | - Danielle Gomez-Merino
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées (IRBA), EA 7330 VIFASOM, Université de Paris, 75004 Paris, France; (M.E.); (C.D.); (D.G.-M.); (F.S.)
| | - Arnaud Metlaine
- EA 7330 VIFASOM, Université de Paris, APHP, Hôtel Dieu, Centre du Sommeil et de la Vigilance, 75004 Paris, France;
| | - Anne Boland
- Centre National de Recherche en Génomique Humaine (CNRGH), Institut de Biologie François Jacob, CEA, Université Paris-Saclay, 91057 Evry, France; (A.B.)
| | - Jean François Deleuze
- Centre National de Recherche en Génomique Humaine (CNRGH), Institut de Biologie François Jacob, CEA, Université Paris-Saclay, 91057 Evry, France; (A.B.)
| | - Claire Thomas
- Unité de Biologie Intégrative des Adaptations à l’Exercice, Université Evry, Université, Paris-Saclay, 91025 Evry, France;
| | - Fabien Sauvet
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées (IRBA), EA 7330 VIFASOM, Université de Paris, 75004 Paris, France; (M.E.); (C.D.); (D.G.-M.); (F.S.)
| | - Mounir Chennaoui
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées (IRBA), EA 7330 VIFASOM, Université de Paris, 75004 Paris, France; (M.E.); (C.D.); (D.G.-M.); (F.S.)
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9
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Temido-Ferreira M, Coelho JE, Pousinha PA, Lopes LV. Novel Players in the Aging Synapse: Impact on Cognition. J Caffeine Adenosine Res 2019; 9:104-127. [PMID: 31559391 PMCID: PMC6761599 DOI: 10.1089/caff.2019.0013] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
While neuronal loss has long been considered as the main contributor to age-related cognitive decline, these alterations are currently attributed to gradual synaptic dysfunction driven by calcium dyshomeostasis and alterations in ionotropic/metabotropic receptors. Given the key role of the hippocampus in encoding, storage, and retrieval of memory, the morpho- and electrophysiological alterations that occur in the major synapse of this network-the glutamatergic-deserve special attention. We guide you through the hippocampal anatomy, circuitry, and function in physiological context and focus on alterations in neuronal morphology, calcium dynamics, and plasticity induced by aging and Alzheimer's disease (AD). We provide state-of-the art knowledge on glutamatergic transmission and discuss implications of these novel players for intervention. A link between regular consumption of caffeine-an adenosine receptor blocker-to decreased risk of AD in humans is well established, while the mechanisms responsible have only now been uncovered. We review compelling evidence from humans and animal models that implicate adenosine A2A receptors (A2AR) upsurge as a crucial mediator of age-related synaptic dysfunction. The relevance of this mechanism in patients was very recently demonstrated in the form of a significant association of the A2AR-encoding gene with hippocampal volume (synaptic loss) in mild cognitive impairment and AD. Novel pathways implicate A2AR in the control of mGluR5-dependent NMDAR activation and subsequent Ca2+ dysfunction upon aging. The nature of this receptor makes it particularly suited for long-term therapies, as an alternative for regulating aberrant mGluR5/NMDAR signaling in aging and disease, without disrupting their crucial constitutive activity.
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Affiliation(s)
- Mariana Temido-Ferreira
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Joana E. Coelho
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Paula A. Pousinha
- Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), CNRS UMR7275, Université Côte d'Azur, Valbonne, France
| | - Luísa V. Lopes
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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Antonioli L, Blandizzi C, Pacher P, Haskó G. The Purinergic System as a Pharmacological Target for the Treatment of Immune-Mediated Inflammatory Diseases. Pharmacol Rev 2019; 71:345-382. [PMID: 31235653 PMCID: PMC6592405 DOI: 10.1124/pr.117.014878] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Immune-mediated inflammatory diseases (IMIDs) encompass a wide range of seemingly unrelated conditions, such as multiple sclerosis, rheumatoid arthritis, psoriasis, inflammatory bowel diseases, asthma, chronic obstructive pulmonary disease, and systemic lupus erythematosus. Despite differing etiologies, these diseases share common inflammatory pathways, which lead to damage in primary target organs and frequently to a plethora of systemic effects as well. The purinergic signaling complex comprising extracellular nucleotides and nucleosides and their receptors, the P2 and P1 purinergic receptors, respectively, as well as catabolic enzymes and nucleoside transporters is a major regulatory system in the body. The purinergic signaling complex can regulate the development and course of IMIDs. Here we provide a comprehensive review on the role of purinergic signaling in controlling immunity, inflammation, and organ function in IMIDs. In addition, we discuss the possible therapeutic applications of drugs acting on purinergic pathways, which have been entering clinical development, to manage patients suffering from IMIDs.
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Affiliation(s)
- Luca Antonioli
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy (L.A., C.B.); Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland (P.P.); and Department of Anesthesiology, Columbia University, New York, New York (G.H.)
| | - Corrado Blandizzi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy (L.A., C.B.); Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland (P.P.); and Department of Anesthesiology, Columbia University, New York, New York (G.H.)
| | - Pál Pacher
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy (L.A., C.B.); Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland (P.P.); and Department of Anesthesiology, Columbia University, New York, New York (G.H.)
| | - György Haskó
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy (L.A., C.B.); Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland (P.P.); and Department of Anesthesiology, Columbia University, New York, New York (G.H.)
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11
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Moein S, Vaghari-Tabari M, Qujeq D, Majidinia M, Nabavi SM, Yousefi B. MiRNAs and inflammatory bowel disease: An interesting new story. J Cell Physiol 2018; 234:3277-3293. [PMID: 30417350 DOI: 10.1002/jcp.27173] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 07/17/2018] [Indexed: 02/06/2023]
Abstract
Inflammatory bowel disease (IBD), as a chronic and recurrent inflammatory disorder, is caused by a dysregulated and aberrant immune response to exposed environmental factors in genetically susceptible individuals. Despite huge efforts in determining the molecular pathogenesis of IBD, an increasing worldwide incidence of IBD has been reported. MicroRNAs (miRNAs) are a set of noncoding RNA molecules that are about 22 nucleotides long, and these molecules are involved in the regulation of the gene expression. By clarifying the important role of miRNAs in a number of diseases, their role was also considered in IBD; numerous studies have been performed on this topic. In this review, we attempt to summarize a number of studies and discuss some of the recent developments in the roles of miRNAs in the pathophysiology, diagnosis, and treatment of IBD.
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Affiliation(s)
- Soheila Moein
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Biochemistry, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mostafa Vaghari-Tabari
- Department of Biochemistry, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Durdi Qujeq
- Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute, Babol University of Medical Sciences, Babol, Irantab.,Department of Clinical Biochemistry, Babol University of Medical Sciences, Babol, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Bahman Yousefi
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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12
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miR15a regulates NLRP3 inflammasome proteins in the retinal vasculature. Exp Eye Res 2018; 176:98-102. [PMID: 29981343 DOI: 10.1016/j.exer.2018.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/22/2018] [Accepted: 07/03/2018] [Indexed: 12/13/2022]
Abstract
We have previously published that miR15a can reduce inflammatory cytokines, which could be key to diabetic retinal pathology. In this work, we wanted to investigate whether miR15a altered NLR pyrin domain 3 (NLRP3) proteins. Whole retinal lysates from both miR15a overexpressing mice and endothelial cell specific miR15a/16 knockout mice were used to investigate protein levels of forkhead box protein O1 (Foxo1), NLRP3, cleaved caspase 1 and interleukin-1 beta (IL-1β). Primary human retinal endothelial cells (REC) were cultured in normal and high glucose followed by transfection with a miR15a mimic for protein analyses. miR15a expression was verified by quantitative PCR, and a luciferase binding assay was used to examine whether miR15a directly bound Foxo1. In mouse retinal lysates, loss of miR15a increased Foxo1, IL-1β, NLRP3, and cleaved caspase 1 levels. REC grown in high glucose transfected with the miR15a mimic had decreased levels of Foxo1 and NLRP3. miR15a directly binds to Foxo1. miR15a regulates NLRP3 actions in the retinal vasculature. Work in mice showed that loss of miR15a increased NLRP3 pathway signaling and Foxo1. miR15a mimics decreased levels of Foxo1 and NLRP3. Taken together, miR15a reduced inflammasome proteins and Foxo1 levels in the retinal vasculature.
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13
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MicroRNA in gastrointestinal cell signalling. Inflammopharmacology 2017; 26:1-14. [PMID: 29110118 DOI: 10.1007/s10787-017-0414-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 10/28/2017] [Indexed: 12/17/2022]
Abstract
Our gut forms an important organ and its formation, functioning and homeostasis are maintained by several factors including cell signalling pathways and commensal microflora. These factors affect pathological, physiological and immunological parameters to maintain gut health and prevent its inflammation. Among these, different intracellular signalling pathways play an important role in regulating gut homeostasis. These pathways are in turn regulated by various microRNAs that play a key role in maintaining the balance between tolerance and inflammation. This review highlights the importance of various cell signalling pathways in modulating gut homeostasis and the role specific miRNAs play in their regulation.
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Ho J, Chan H, Wong SH, Wang MHT, Yu J, Xiao Z, Liu X, Choi G, Leung CCH, Wong WT, Li Z, Gin T, Chan MTV, Wu WKK. The involvement of regulatory non-coding RNAs in sepsis: a systematic review. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2016; 20:383. [PMID: 27890015 PMCID: PMC5125038 DOI: 10.1186/s13054-016-1555-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 10/31/2016] [Indexed: 12/13/2022]
Abstract
Background Sepsis coincides with altered gene expression in different tissues. Accumulating evidence has suggested that microRNAs, long non-coding RNAs, and circular RNAs are important molecules involved in the crosstalk with various pathways pertinent to innate immunity, mitochondrial functions, and apoptosis. Methods We searched articles indexed in PubMed (MEDLINE), EMBASE and Europe PubMed Central databases using the Medical Subject Heading (MeSH) or Title/Abstract words (“microRNA”, “long non-coding RNA”, “circular RNA”, “sepsis” and/or “septic shock”) from inception to Sep 2016. Studies investigating the role of host-derived microRNA, long non-coding RNA, and circular RNA in the pathogenesis of and as biomarkers or therapeutics in sepsis were included. Data were extracted in terms of the role of non-coding RNAs in pathogenesis, and their applicability for use as biomarkers or therapeutics in sepsis. Two independent researchers assessed the quality of studies using a modified guideline from the Systematic Review Center for Laboratory animal Experimentation (SYRCLE), a tool based on the Cochrane Collaboration Risk of Bias tool. Results Observational studies revealed dysregulation of non-coding RNAs in septic patients. Experimental studies confirmed their crosstalk with JNK/NF-κB and other cellular pathways pertinent to innate immunity, mitochondrial function, and apoptosis. Of the included studies, the SYRCLE scores ranged from 3 to 7 (average score of 4.55). This suggests a moderate risk of bias. Of the 10 articles investigating non-coding RNAs as biomarkers, none of them included a validation cohort. Selective reporting of sensitivity, specificity, and receiver operating curve was common. Conclusions Although non-coding RNAs appear to be good candidates as biomarkers and therapeutics for sepsis, their differential expression across tissues complicated the process. Further investigation on organ-specific delivery of these regulatory molecules may be useful. Electronic supplementary material The online version of this article (doi:10.1186/s13054-016-1555-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jeffery Ho
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Hung Chan
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Sunny H Wong
- State Key Laboratory of Digestive Disease, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong, Special Administrative Region of China. .,Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China.
| | - Maggie H T Wang
- The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Jun Yu
- State Key Laboratory of Digestive Disease, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong, Special Administrative Region of China.,Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Zhangang Xiao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Xiaodong Liu
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Gordon Choi
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Czarina C H Leung
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Wai T Wong
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Zheng Li
- Department of Orthopedics Surgery Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Tony Gin
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China
| | - Matthew T V Chan
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China.
| | - William K K Wu
- Department of Anesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong, Hong Kong, Special Administrative Region of China. .,State Key Laboratory of Digestive Disease, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong, Special Administrative Region of China.
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15
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Ferrari D, Bianchi N, Eltzschig HK, Gambari R. MicroRNAs Modulate the Purinergic Signaling Network. Trends Mol Med 2016; 22:905-918. [PMID: 27623176 DOI: 10.1016/j.molmed.2016.08.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/13/2016] [Accepted: 08/16/2016] [Indexed: 12/14/2022]
Abstract
MicroRNAs (miRNAs) are small non-coding RNA molecules capable of silencing mRNA targets. miRNA dysregulation has been linked to cancer development, cardiovascular and neurological diseases, lipid metabolism, and impaired immunity. Therefore, miRNAs are gaining interest as putative novel disease biomarkers and therapeutic targets. Recent studies have shown that purinergic surface receptors activated by extracellular nucleotides (ATP, ADP, UTP, UDP), and by nucleosides such as adenosine (ADO), are subject to miRNA regulation. This opens a new and previously unrecognized opportunity to modulate the purinergic network with the aim of avoiding abnormal activation of specific receptor subtypes. miRNA technology will hopefully contribute strategies to prevent purinergic-mediated tissue damage in conditions of neurodegeneration, atherosclerosis, transplantation, and even neoplasia.
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Affiliation(s)
- Davide Ferrari
- Department of Life Science and Biotechnology, University of Ferrara, Ferrara, Italy.
| | - Nicoletta Bianchi
- Department of Life Science and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Holger K Eltzschig
- Department of Anesthesiology, University of Texas Medical School at Houston, Houston, TX, USA
| | - Roberto Gambari
- Department of Life Science and Biotechnology, University of Ferrara, Ferrara, Italy
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16
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Cunha RA. How does adenosine control neuronal dysfunction and neurodegeneration? J Neurochem 2016; 139:1019-1055. [PMID: 27365148 DOI: 10.1111/jnc.13724] [Citation(s) in RCA: 317] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 05/23/2016] [Accepted: 06/23/2016] [Indexed: 12/11/2022]
Abstract
The adenosine modulation system mostly operates through inhibitory A1 (A1 R) and facilitatory A2A receptors (A2A R) in the brain. The activity-dependent release of adenosine acts as a brake of excitatory transmission through A1 R, which are enriched in glutamatergic terminals. Adenosine sharpens salience of information encoding in neuronal circuits: high-frequency stimulation triggers ATP release in the 'activated' synapse, which is locally converted by ecto-nucleotidases into adenosine to selectively activate A2A R; A2A R switch off A1 R and CB1 receptors, bolster glutamate release and NMDA receptors to assist increasing synaptic plasticity in the 'activated' synapse; the parallel engagement of the astrocytic syncytium releases adenosine further inhibiting neighboring synapses, thus sharpening the encoded plastic change. Brain insults trigger a large outflow of adenosine and ATP, as a danger signal. A1 R are a hurdle for damage initiation, but they desensitize upon prolonged activation. However, if the insult is near-threshold and/or of short-duration, A1 R trigger preconditioning, which may limit the spread of damage. Brain insults also up-regulate A2A R, probably to bolster adaptive changes, but this heightens brain damage since A2A R blockade affords neuroprotection in models of epilepsy, depression, Alzheimer's, or Parkinson's disease. This initially involves a control of synaptotoxicity by neuronal A2A R, whereas astrocytic and microglia A2A R might control the spread of damage. The A2A R signaling mechanisms are largely unknown since A2A R are pleiotropic, coupling to different G proteins and non-canonical pathways to control the viability of glutamatergic synapses, neuroinflammation, mitochondria function, and cytoskeleton dynamics. Thus, simultaneously bolstering A1 R preconditioning and preventing excessive A2A R function might afford maximal neuroprotection. The main physiological role of the adenosine modulation system is to sharp the salience of information encoding through a combined action of adenosine A2A receptors (A2A R) in the synapse undergoing an alteration of synaptic efficiency with an increased inhibitory action of A1 R in all surrounding synapses. Brain insults trigger an up-regulation of A2A R in an attempt to bolster adaptive plasticity together with adenosine release and A1 R desensitization; this favors synaptotocity (increased A2A R) and decreases the hurdle to undergo degeneration (decreased A1 R). Maximal neuroprotection is expected to result from a combined A2A R blockade and increased A1 R activation. This article is part of a mini review series: "Synaptic Function and Dysfunction in Brain Diseases".
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Affiliation(s)
- Rodrigo A Cunha
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,FMUC-Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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17
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MicroRNA-16 is putatively involved in the NF-κB pathway regulation in ulcerative colitis through adenosine A2a receptor (A2aAR) mRNA targeting. Sci Rep 2016; 6:30824. [PMID: 27476546 PMCID: PMC4967855 DOI: 10.1038/srep30824] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 07/11/2016] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) act as important post-transcriptional regulators of gene expression by targeting the 3′-untranslated region of their target genes. Altered expression of miR-16 is reported in human ulcerative colitis (UC), but its role in the development of the disease remains unclear. Adenosine through adenosine A2a receptor (A2aAR) could inhibit nuclear factor-kappaB (NF-κB) signaling pathway in inflammation. Here we identified overexpression of miR-16 and down-regulation of A2aAR in the colonic mucosa of active UC patients. We demonstrated that miR-16 negatively regulated the expression of the A2aAR at the post-transcriptional level. Furthermore, transfection of miR-16 mimics promoted nuclear translocation of NF-κB p65 protein and expression of pro-inflammatory cytokines, IFN-γ and IL-8 in colonic epithelial cells. Treatment with miR-16 inhibitor could reverse these effects in cells. The A2aAR-mediated effects of miR-16 on the activation of the NF-κB signaling pathway were confirmed by the A2aAR knockdown assay. Our results suggest that miR-16 regulated the immune and inflammatory responses, at least in part, by suppressing the expression of the A2aAR to control the activation of the NF-κB signaling pathway.
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Abstract
Cellular stress or apoptosis triggers the release of ATP, ADP and other nucleotides into the extracellular space. Extracellular nucleotides function as autocrine and paracrine signalling molecules by activating cell-surface P2 purinergic receptors that elicit pro-inflammatory immune responses. Over time, extracellular nucleotides are metabolized to adenosine, leading to reduced P2 signalling and increased signalling through anti-inflammatory adenosine (P1 purinergic) receptors. Here, we review how local purinergic signalling changes over time during tissue responses to injury or disease, and we discuss the potential of targeting purinergic signalling pathways for the immunotherapeutic treatment of ischaemia, organ transplantation, autoimmunity or cancer.
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Affiliation(s)
- Caglar Cekic
- Department of Molecular Biology and Genetics, Bilkent University, Ankara 06800, Turkey
| | - Joel Linden
- Division of Developmental Immunology, La Jolla Institute for Allergy and Immunology, La Jolla, California 92037, USA
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Ding E, Zhao Q, Bai Y, Xu M, Pan L, Liu Q, Wang B, Song X, Wang J, Chen L, Zhu B. Plasma microRNAs expression profile in female workers occupationally exposed to mercury. J Thorac Dis 2016; 8:833-41. [PMID: 27162656 DOI: 10.21037/jtd.2016.03.36] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Circulating microRNAs (miRNAs) have attracted interests as non-invasive biomarkers of physiological and pathological conditions. Several studies have examined the potential effects of mercury exposure on miRNAs expression profiles of general population environmentally exposed to mercury. The objective is to identify mercury-related miRNAs of female workers occupationally exposed to mercury. METHODS In this case-control study, we used a microarray assay to detect the miRNA expression profiles in pooled plasma samples between (I) chronic mercury poisoning group; (II) mercury absorbing group and (III) control group in the discovery stage. Each group has ten individuals. In addition, we conducted a validation of eight candidate miRNAs in the same 30 workers by quantitative real-time PCR. RESULTS In the discovery stage, eight miRNAs were conformed following our selection criteria. In the validation stage, RT-PCR confirmed up-regulation of miR-92a and miR-486 in the mercury poisoned group (P<0.05) compared to the other two groups. The results were consistent with the microarray analysis. CONCLUSIONS Plasma miR-92a-3p and miR-486-5p might prove to be potential biomarkers to indicate responses to mercury exposure. However, further studies are necessary to prove the causal association between miRNAs changes and mercury exposure, and to determine whether these two miRNAs are clear biomarkers to mercury exposure.
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Affiliation(s)
- Enmin Ding
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
| | - Qiuni Zhao
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
| | - Ying Bai
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
| | - Ming Xu
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
| | - Liping Pan
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
| | - Qingdong Liu
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
| | - Bosheng Wang
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
| | - Xianping Song
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
| | - Jun Wang
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
| | - Lin Chen
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
| | - Baoli Zhu
- 1 Department of Occupational and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China ; 2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China ; 3 School of Public Health, Southeast University, Nanjing 210009, China
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Zhao L, Liu YW, Yang T, Gan L, Yang N, Dai SS, He F. The mutual regulation between miR-214 and A2AR signaling plays an important role in inflammatory response. Cell Signal 2015; 27:2026-34. [DOI: 10.1016/j.cellsig.2015.07.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 07/06/2015] [Accepted: 07/10/2015] [Indexed: 11/15/2022]
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Increased striatal adenosine A2A receptor levels is an early event in Parkinson's disease-related pathology and it is potentially regulated by miR-34b. Neurobiol Dis 2014; 69:206-14. [PMID: 24892887 DOI: 10.1016/j.nbd.2014.05.030] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 05/01/2014] [Accepted: 05/22/2014] [Indexed: 12/20/2022] Open
Abstract
Adenosine A2A receptor (A2AR) is a G-protein coupled receptor that stimulates adenylyl cyclase activity. In the brain, A2ARs are found highly enriched in striatal GABAergic medium spiny neurons, related to the control of voluntary movement. Pharmacological modulation of A2ARs is particularly useful in Parkinson's disease (PD) due to their property of antagonizing dopamine D2 receptor activity. Increases in A2AR levels have been described in PD patients showing an important loss of dopaminergic denervation markers, but no data have been reported about A2AR levels in incidental PD brains. In the present report, we show that increased A2ARs protein levels were also detected in the putamen of incidental PD cases (Braak PD stages 1-2) with respect to age-matched controls. By contrast, A2ARs mRNA levels remained unchanged, suggesting that posttranslational mechanisms could be involved in the regulation of A2ARs. It has been described how miR-34b/c downregulation is an early event in PD cases. We found that miR-34b levels are also significantly reduced in the putamen of incidental PD cases and along disease progression. Given that 3'UTR of A2AR contains a predicted target site for miR-34b, the potential role of this miRNA in protein A2AR levels was assessed. In vitro studies revealed that endogenous A2AR protein levels increased when miR-34b function was blocked using a specific anti-miR-34b. Moreover, using a luciferase reporter assay with point mutations in a miR-34b predicted binding site within the 3'UTR region of A2AR mRNA abolished the effect of the miRNA using a miR-34b mimic. In addition, we showed a reduced percentage of DNA methylation in the 5'UTR region of ADORA2A in advanced PD cases. Overall, these findings reveal that increased A2AR protein levels occur in asymptomatic PD patients and provide new insights into the molecular mechanisms underlying A2AR expression levels along the progression of this neurodegenerative disease.
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Vergani A, Tezza S, Fotino C, Visner G, Pileggi A, Chandraker A, Fiorina P. The purinergic system in allotransplantation. Am J Transplant 2014; 14:507-14. [PMID: 24433446 DOI: 10.1111/ajt.12567] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/31/2013] [Accepted: 10/31/2013] [Indexed: 01/25/2023]
Abstract
The purine nucleotide adenosine triphosphate (ATP) is a universal source of energy for any intracellular reaction. Under specific physiological or pathological conditions, ATP can be released into extracellular spaces, where it binds and activates the purinergic receptors system (i.e. P2X, P2Y and P1 receptors). Extracellular ATP (eATP) binds to P2X or P2Y receptors in immune cells, where it mediates proliferation, chemotaxis, cytokine release, antigen presentation and cytotoxicity. eATP is then hydrolyzed by ectonucleotidases into adenosine diphosphate (ADP), which activates P2Y receptors. Ectonucleotidases also hydrolyze ADP to adenosine monophosphate and adenosine, which binds P1 receptors. In contrast to P2X and P2Y receptors, P1 receptors exert mainly an inhibitory effect on the immune response. In transplantation, a prominent role has been demonstrated for the eATP/P2X7R axis; the targeting of this pathway in fact is associated with long-term graft function and reduced graft versus host disease severity in murine models. Novel P2X receptor inhibitors are available for clinical use and are under assessment as immunomodulatory agents. In this review, we will focus on the relevance of the purinergic system and on the potential benefits of targeting this system in allograft rejection and tolerance.
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Affiliation(s)
- A Vergani
- Nephrology Division, Boston Children's Hospital, Harvard Medical School, Boston, MA; Department of Medicine, San Raffaele Scientific Institute, Milan, Italy
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Izzotti A, Pulliero A. The effects of environmental chemical carcinogens on the microRNA machinery. Int J Hyg Environ Health 2014; 217:601-27. [PMID: 24560354 DOI: 10.1016/j.ijheh.2014.01.001] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 01/03/2014] [Accepted: 01/06/2014] [Indexed: 12/29/2022]
Abstract
The first evidence that microRNA expression is early altered by exposure to environmental chemical carcinogens in still healthy organisms was obtained for cigarette smoke. To date, the cumulative experimental data indicate that similar effects are caused by a variety of environmental carcinogens, including polycyclic aromatic hydrocarbons, nitropyrenes, endocrine disruptors, airborne mixtures, carcinogens in food and water, and carcinogenic drugs. Accordingly, the alteration of miRNA expression is a general mechanism that plays an important pathogenic role in linking exposure to environmental toxic agents with their pathological consequences, mainly including cancer development. This review summarizes the existing experimental evidence concerning the effects of chemical carcinogens on the microRNA machinery. For each carcinogen, the specific microRNA alteration signature, as detected in experimental studies, is reported. These data are useful for applying microRNA alterations as early biomarkers of biological effects in healthy organisms exposed to environmental carcinogens. However, microRNA alteration results in carcinogenesis only if accompanied by other molecular damages. As an example, microRNAs altered by chemical carcinogens often inhibits the expression of mutated oncogenes. The long-term exposure to chemical carcinogens causes irreversible suppression of microRNA expression thus allowing the transduction into proteins of mutated oncogenes. This review also analyzes the existing knowledge regarding the mechanisms by which environmental carcinogens alter microRNA expression. The underlying molecular mechanism involves p53-microRNA interconnection, microRNA adduct formation, and alterations of Dicer function. On the whole, reported findings provide evidence that microRNA analysis is a molecular toxicology tool that can elucidate the pathogenic mechanisms activated by environmental carcinogens.
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Affiliation(s)
- A Izzotti
- Department of Health Sciences, University of Genoa, Italy; Mutagenesis Unit, IRCCS University Hospital San Martino - IST National Research Cancer Institute, Genoa, Italy.
| | - A Pulliero
- Department of Health Sciences, University of Genoa, Italy
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Cardiovascular adenosine receptors: Expression, actions and interactions. Pharmacol Ther 2013; 140:92-111. [DOI: 10.1016/j.pharmthera.2013.06.002] [Citation(s) in RCA: 163] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 05/28/2013] [Indexed: 12/26/2022]
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Dong X, Liu H, Chen F, Li D, Zhao Y. MiR-214 promotes the alcohol-induced oxidative stress via down-regulation of glutathione reductase and cytochrome P450 oxidoreductase in liver cells. Alcohol Clin Exp Res 2013; 38:68-77. [PMID: 23905773 DOI: 10.1111/acer.12209] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 05/27/2013] [Indexed: 12/17/2022]
Abstract
BACKGROUND The involvement of oxidative stress in the pathophysiological process of alcohol-induced liver injury has been studied for decades. However, the role of microRNAs (miRNAs) targeting to oxidative stress genes in the pathogenesis of alcohol-induced liver injury has not yet been determined. The aim of this study was to identify the targeting of miR-214 to both glutathione reductase (GSR) and cytochrome P450 oxidoreductase (POR) genes and elucidate their impact on alcohol-induced oxidative stress in liver cells. METHODS The miR-214 expression vector and reporter vectors of GSR and POR 3'-UTR were constructed. Human hepatoma cell (Bel7402), human embryonic kidney 293 cell (HEK293), and rat normal hepatocyte (BRL) were transfected and stimulated with ethanol (EtOH). Wistar rats were fed with EtOH for 4 weeks. The GSR and POR protein levels were detected by Western blot, and their activities were measured using the spectrophotometric method. The miR-214 expression was detected by real-time PCR. The index of oxidative stress including the total antioxidant capacity (T-AOC) and malondialdehyde (MDA) level was detected by commercial kits. RESULTS miR-214 bound specifically to the GSR and POR 3'-UTR and repressed the expressions and activities of both GSR and POR. EtOH up-regulated the miR-214 expression, down-regulated the GSR and POR protein levels and activities, and induced the oxidative stress in human and rat liver cells. EtOH-fed Wistar rats further confirmed that alcohol up-regulates the miR-214 expression in liver and repressed both GSR and POR in vivo. CONCLUSIONS These findings demonstrated a new mechanism by which the alcohol repressed the GSR and POR expression via up-regulation of miR-214 and in turn induced oxidative stress in liver cells.
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Affiliation(s)
- Xiaolong Dong
- Department of Clinical Genetics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China; Department of Medical Genetics, China Medical University, Shenyang, Liaoning, China
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Li J, Zhao L, He X, Zeng YJ, Dai SS. Sinomenine protects against lipopolysaccharide-induced acute lung injury in mice via adenosine A(2A) receptor signaling. PLoS One 2013; 8:e59257. [PMID: 23555007 PMCID: PMC3598653 DOI: 10.1371/journal.pone.0059257] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 02/12/2013] [Indexed: 02/07/2023] Open
Abstract
Sinomenine (SIN) is a bioactive alkaloid extracted from the Chinese medicinal plant Sinomenium acutum, which is widely used in the clinical treatment of rheumatoid arthritis (RA). However, its role in acute lung injury (ALI) is unclear. In this study, we investigate the role of SIN in lipopolysaccharide (LPS)-induced ALI in mice. After ALI, lung water content and histological signs of pulmonary injury were attenuated, whereas the PaO2/FIO2 (P/F) ratios were elevated significantly in the mice pretreated with SIN. Additionally, SIN markedly inhibited inflammatory cytokine TNF-α and IL-1β expression levels as well as neutrophil infiltration in the lung tissues of the mice. Microarray analysis and real-time PCR showed that SIN treatment upregulated adenosine A2A receptor (A2AR) expression, and the protective effect of SIN was abolished in A2AR knockout mice. Further investigation in isolated mouse neutrophils confirmed the upregulation of A2AR by SIN and showed that A2AR-cAMP-PKA signaling was involved in the anti-inflammatory effect of SIN. Taken together, these findings demonstrate an A2AR-associated anti-inflammatory effect and the protective role of SIN in ALI, which suggests a potential novel approach to treat ALI.
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Affiliation(s)
- Jun Li
- Department of Cardiothoracic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Li Zhao
- Department of Biochemistry and Molecular Biology, Third Military Medical University, Chongqing, China
| | - Xie He
- Department of Biochemistry and Molecular Biology, Third Military Medical University, Chongqing, China
| | - Yi-Jun Zeng
- Department of Biochemistry and Molecular Biology, Third Military Medical University, Chongqing, China
| | - Shuang-Shuang Dai
- Department of Biochemistry and Molecular Biology, Third Military Medical University, Chongqing, China
- * E-mail:
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Tobón KE, Chang D, Kuzhikandathil EV. MicroRNA 142-3p mediates post-transcriptional regulation of D1 dopamine receptor expression. PLoS One 2012; 7:e49288. [PMID: 23152889 PMCID: PMC3495858 DOI: 10.1371/journal.pone.0049288] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 10/08/2012] [Indexed: 12/17/2022] Open
Abstract
The D1 dopamine receptor subtype is expressed in the brain, kidney and lymphocytes. D1 receptor function has been extensively studied and the receptor has been shown to modulate a wide range of physiological functions and behaviors. The expression of D1 receptor is known to change during development, disease states and chronic treatment; however, the molecular mechanisms that mediate the changes in D1 receptor expression under these circumstances are not well understood. While previous studies have identified extracellular factors and signaling mechanisms regulating the transcription of D1 receptor gene, very little is known about other regulatory mechanisms that modulate the expression of the D1 receptor gene. Here we report that the D1 receptor is post-transcriptionally regulated during postnatal mouse brain development and in the mouse CAD catecholaminergic neuronal cell line. We demonstrate that this post-transcriptional regulation is mediated by a molecular mechanism involving noncoding RNA. We show that the 1277 bp 3'untranslated region of D1 receptor mRNA is necessary and sufficient for mediating the post-transcriptional regulation. Using deletion and site-directed mutagenesis approaches, we show that the D1 receptor post-transcriptional regulation is specifically mediated by microRNA miR-142-3p interacting with a single consensus binding site in the 1277 bp 3'untranslated region of D1 receptor mRNA. Inhibiting endogenous miR-142-3p in CAD cells increased endogenous D1 receptor protein expression levels. The increase in D1 receptor protein levels was biologically significant as it resulted in enhanced D1 receptor-mediated signaling, determined by measuring the activation of both, adenylate cyclase and, the dopamine- and cAMP-regulated phosphoprotein, DARPP-32. We also show that there is an inverse correlation between miR-142-3p levels and D1 receptor protein expression in the mouse brain during postnatal development. This is the first study to demonstrate that the post-transcriptional regulation of D1 receptor expression is mediated by microRNA-induced translational suppression.
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Affiliation(s)
- Krishna E. Tobón
- Department of Pharmacology and Physiology, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey, United States of America
| | - Denis Chang
- Department of Pharmacology and Physiology, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey, United States of America
| | - Eldo V. Kuzhikandathil
- Department of Pharmacology and Physiology, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey, United States of America
- * E-mail:
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What's new in Shock, February 2012? Shock 2012; 37:127-30. [PMID: 22249217 DOI: 10.1097/shk.0b013e31824255b3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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