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Liu L, Li L, Yuan J, Liu W, Li Y, Zhang S, Huang C. Several Non-salt and Solid Thienopyridine Derivatives as Oral P2Y 12 Receptor Inhibitors with Good Stability. Bioorg Med Chem Lett 2022; 75:128969. [PMID: 36058469 DOI: 10.1016/j.bmcl.2022.128969] [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: 07/12/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/20/2022]
Abstract
A series of novel thienopyridine derivatives were designed and synthesized as P2Y12 receptor inhibitors. Several solid compounds were assessed for inhibitory effect where they exhibited stronger potency than clopidogrel. Compound 6b and 6g were evaluated for metabolism to verify that they could overcome clopidogrel resistance and for toxicity where they showed lower toxicity than prasugrel. Compound 6b exhibited lower risk of bleeding than prasugrel and showed good stability under stress testing. Overall, as a promising antiplatelet agent, representative compound 6b showed the following advantages: (1) no drug resistance for CYP2C19 poor metabolizers; (2) higher potency than clopidogrel; (3) lower toxicity than prasugrel; (4) lower risk of bleeding than prasugrel; (5) good stability as a non-salt solid.
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Affiliation(s)
- Lei Liu
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China; State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China
| | - Lingjun Li
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China; State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China
| | - Jing Yuan
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China; State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China
| | - Wei Liu
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China; State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China
| | - Yuquan Li
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China; State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China
| | - Shijun Zhang
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China; State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China
| | - Changjiang Huang
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China; State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, 306 Huiren Road, Tianjin 300301, PR China.
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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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Procopio MC, Lauro R, Nasso C, Carerj S, Squadrito F, Bitto A, Di Bella G, Micari A, Irrera N, Costa F. Role of Adenosine and Purinergic Receptors in Myocardial Infarction: Focus on Different Signal Transduction Pathways. Biomedicines 2021; 9:biomedicines9020204. [PMID: 33670488 PMCID: PMC7922652 DOI: 10.3390/biomedicines9020204] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 02/15/2021] [Indexed: 12/24/2022] Open
Abstract
Myocardial infarction (MI) is a dramatic event often caused by atherosclerotic plaque erosion or rupture and subsequent thrombotic occlusion of a coronary vessel. The low supply of oxygen and nutrients in the infarcted area may result in cardiomyocytes necrosis, replacement of intact myocardium with non-contractile fibrous tissue and left ventricular (LV) function impairment if blood flow is not quickly restored. In this review, we summarized the possible correlation between adenosine system, purinergic system and Wnt/β-catenin pathway and their role in the pathogenesis of cardiac damage following MI. In this context, several pathways are involved and, in particular, the adenosine receptors system shows different interactions between its members and purinergic receptors: their modulation might be effective not only for a normal functional recovery but also for the treatment of heart diseases, thus avoiding fibrosis, reducing infarcted area and limiting scaring. Similarly, it has been shown that Wnt/β catenin pathway is activated following myocardial injury and its unbalanced activation might promote cardiac fibrosis and, consequently, LV systolic function impairment. In this regard, the therapeutic benefits of Wnt inhibitors use were highlighted, thus demonstrating that Wnt/β-catenin pathway might be considered as a therapeutic target to prevent adverse LV remodeling and heart failure following MI.
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Affiliation(s)
- Maria Cristina Procopio
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Rita Lauro
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Chiara Nasso
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Scipione Carerj
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Alessandra Bitto
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Gianluca Di Bella
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
| | - Antonio Micari
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, University of Messina, A.O.U. Policlinic “G. Martino”, 98165 Messina, Italy;
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
- Correspondence: ; Tel.: +39-090-221-3093; Fax: +39-090-221-23-81
| | - Francesco Costa
- Department of Clinical and Experimental Medicine, University of Messina, 98165 Messina, Italy; (M.C.P.); (R.L.); (C.N.); (S.C.); (F.S.); (A.B.); (G.D.B.); (F.C.)
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Zuo X, Li Q, Ya F, Ma LJ, Tian Z, Zhao M, Fan D, Zhao Y, Mao YH, Wan JB, Yang Y. Ginsenosides Rb2 and Rd2 isolated from Panax notoginseng flowers attenuate platelet function through P2Y 12-mediated cAMP/PKA and PI3K/Akt/Erk1/2 signaling. Food Funct 2021; 12:5793-5805. [PMID: 34041517 DOI: 10.1039/d1fo00531f] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Saponins derived from Panax notoginseng root are widely used as herbal medicines and dietary supplements due to their wide range of health benefits. However, the effects of those from Panax notoginseng flowers (PNF) on platelet function and thrombus formation remain largely unknown. Using a series of platelet function assays, we found that G-Rb2 and G-Rd2, among the ten PNF saponin monomers, significantly inhibited human platelet aggregation and activation induced by adenosine diphosphate (ADP) in vitro. The 50% inhibitory concentration (IC50) of G-Rb2 and G-Rd2 against ADP-induced platelet aggregation was 85.5 ± 4.5 μg mL-1 and 51.4 ± 4.6 μg mL-1, respectively. Mechanistically, G-Rb2 and G-Rd2 could effectively modulate platelet P2Y12-mediated signaling by up-regulating cAMP/PKA signaling and down-regulating PI3K/Akt/Erk1/2 signaling pathways. Co-incubation of the P2Y12 antagonist cangrelor with either G-Rb2 or G-Rd2 did not show significant additive inhibitory effects. G-Rb2 and G-Rd2 also substantially suppressed thrombus growth in a FeCl3-induced murine arteriole thrombosis model in vivo. Interestingly, G-Rd2 generally exhibited more potent inhibitory effects on platelet function and thrombus formation than G-Rb2. Thus, our data suggest that PNF-derived G-Rb2 and G-Rd2 effectively attenuate platelet hyperactivity through modulating signaling pathways downstream of P2Y12, which indicates G-Rb2 and G-Rd2 may play important preventive roles in thrombotic diseases.
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Affiliation(s)
- Xiao Zuo
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China. and Guangdong Provincial Key Laboratory for Food, Nutrition and Health, Guangzhou, Guangdong Province 510080, China and Guangdong Engineering Technology Research Center of Nutrition Translation, Guangzhou, Guangdong Province 510080, China
| | - Qing Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China. and Guangdong Provincial Key Laboratory for Food, Nutrition and Health, Guangzhou, Guangdong Province 510080, China and Guangdong Engineering Technology Research Center of Nutrition Translation, Guangzhou, Guangdong Province 510080, China
| | - Fuli Ya
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China. and Guangdong Provincial Key Laboratory for Food, Nutrition and Health, Guangzhou, Guangdong Province 510080, China and Guangdong Engineering Technology Research Center of Nutrition Translation, Guangzhou, Guangdong Province 510080, China
| | - Li-Juan Ma
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
| | - Zezhong Tian
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China. and Guangdong Provincial Key Laboratory for Food, Nutrition and Health, Guangzhou, Guangdong Province 510080, China and Guangdong Engineering Technology Research Center of Nutrition Translation, Guangzhou, Guangdong Province 510080, China
| | - Mingzhu Zhao
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China. and Guangdong Provincial Key Laboratory for Food, Nutrition and Health, Guangzhou, Guangdong Province 510080, China and Guangdong Engineering Technology Research Center of Nutrition Translation, Guangzhou, Guangdong Province 510080, China
| | - Die Fan
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China. and Guangdong Provincial Key Laboratory for Food, Nutrition and Health, Guangzhou, Guangdong Province 510080, China and Guangdong Engineering Technology Research Center of Nutrition Translation, Guangzhou, Guangdong Province 510080, China
| | - Yimin Zhao
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China. and Guangdong Provincial Key Laboratory for Food, Nutrition and Health, Guangzhou, Guangdong Province 510080, China and Guangdong Engineering Technology Research Center of Nutrition Translation, Guangzhou, Guangdong Province 510080, China
| | - Yu-Heng Mao
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China. and Guangdong Provincial Key Laboratory for Food, Nutrition and Health, Guangzhou, Guangdong Province 510080, China and Guangdong Engineering Technology Research Center of Nutrition Translation, Guangzhou, Guangdong Province 510080, China
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
| | - Yan Yang
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China. and Guangdong Provincial Key Laboratory for Food, Nutrition and Health, Guangzhou, Guangdong Province 510080, China and Guangdong Engineering Technology Research Center of Nutrition Translation, Guangzhou, Guangdong Province 510080, China
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Screening for the antiplatelet aggregation quality markers of Salvia yunnanensis based on an integrated approach. J Pharm Biomed Anal 2020; 188:113383. [DOI: 10.1016/j.jpba.2020.113383] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 05/13/2020] [Accepted: 05/18/2020] [Indexed: 12/21/2022]
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6
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Adenosine Receptor Agonists Increase the Inhibition of Platelet Function by P2Y 12 Antagonists in a cAMP- and Calcium-Dependent Manner. Pharmaceuticals (Basel) 2020; 13:ph13080177. [PMID: 32752089 PMCID: PMC7464091 DOI: 10.3390/ph13080177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/30/2020] [Accepted: 07/30/2020] [Indexed: 12/22/2022] Open
Abstract
We have shown previously that platelet activity can be lowered through the simultaneous inhibition of P2Y12 receptor and activation of adenosine receptors (AR). This work explores this concept by testing the antiplatelet potential of nine AR agonists in combination with P2Y12 receptor antagonists—cangrelor and prasugrel metabolite. A panel of in vitro methods was used to assess platelet viability, P-selectin expression, GPIIb-IIIa activation, fibrinogen binding, calcium ion mobilization, VASP-P level, and cAMP formation, utilizing whole blood or isolated platelets from healthy volunteers. The AR agonists demonstrated anti-platelet effects, but stimulated signaling pathways to varying degrees. AR agonists and P2Y12 antagonists reduced expression of both P-selectin and the activated form of GPIIb-IIIa on platelets; however, the combined systems (AR agonist + P2Y12 antagonist) demonstrated stronger effects. The antiplatelet effects of AR when combined with P2Y12 were more pronounced with regard to exogenous fibrinogen binding and calcium mobilization. The cAMP levels in both resting and ADPactivated platelets were increased by AR agonist treatment, and more so when combined with P2Y12 inhibitor. In conclusion, as AR agonists are fast-acting compounds, the methods detecting early activation events are more suitable for assessing their antiplatelet action. The exogenous fibrinogen binding, calcium mobilisation and cAMP level turned out to be sensitive markers for detecting the inhibition caused by AR agonists alone or in combination with P2Y12 receptor antagonists.
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Popielarski M, Ponamarczuk H, Stasiak M, Gdula A, Bednarek R, Wolska N, Swiatkowska M. P2Y12 receptor antagonists and AR receptor agonists regulates Protein Disulfide Isomerase secretion from platelets and endothelial cells. Biochem Biophys Res Commun 2020; 526:756-763. [DOI: 10.1016/j.bbrc.2020.03.143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/16/2020] [Accepted: 03/25/2020] [Indexed: 12/27/2022]
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8
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Adenosine Receptor Agonists Exhibit Anti-Platelet Effects and the Potential to Overcome Resistance to P2Y 12 Receptor Antagonists. Molecules 2019; 25:molecules25010130. [PMID: 31905703 PMCID: PMC6982709 DOI: 10.3390/molecules25010130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/16/2019] [Accepted: 12/25/2019] [Indexed: 11/30/2022] Open
Abstract
Large inter-individual variation in platelet response to endogenous agonists and pharmacological agents, including resistance to antiplatelet therapy, prompts a search for novel platelet inhibitors and development new antithrombotic strategies. The present in vitro study evaluates the beneficial effects of three adenosine receptor (AR) agonists (regadenoson, LUF 5835 and NECA), different in terms of their selectivity for platelet adenosine receptors, when used alone and in combination with P2Y12 inhibitors, such as cangrelor or prasugrel metabolite. The anti-platelet effects of AR agonists were evaluated in healthy subjects (in the whole group and after stratification of individuals into high- and low-responders to P2Y12 inhibitors), using whole blood techniques, under flow (thrombus formation) and static conditions (study of platelet activation and aggregation). Compared to P2Y12 antagonists, AR agonists were much less or not effective under static conditions, but demonstrated similar antiplatelet activity in flow. In most cases, AR agonists significantly enhanced the anti-platelet effect of P2Y12 antagonists, despite possessing different selectivity profiles and antiplatelet activities. Importantly, their inhibitory effects in combination with P2Y12 antagonists were similar in high- and low-responders to P2Y12 inhibitors. In conclusion, a combination of anti-platelet agents acting via the P1 and P2 purinergic receptors represents a promising alternative to existing antithrombotic therapy.
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9
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Wolska N, Rozalski M. Blood Platelet Adenosine Receptors as Potential Targets for Anti-Platelet Therapy. Int J Mol Sci 2019; 20:ijms20215475. [PMID: 31684173 PMCID: PMC6862090 DOI: 10.3390/ijms20215475] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/31/2019] [Accepted: 11/01/2019] [Indexed: 12/21/2022] Open
Abstract
Adenosine receptors are a subfamily of highly-conserved G-protein coupled receptors. They are found in the membranes of various human cells and play many physiological functions. Blood platelets express two (A2A and A2B) of the four known adenosine receptor subtypes (A1, A2A, A2B, and A3). Agonization of these receptors results in an enhanced intracellular cAMP and the inhibition of platelet activation and aggregation. Therefore, adenosine receptors A2A and A2B could be targets for anti-platelet therapy, especially under circumstances when classic therapy based on antagonizing the purinergic receptor P2Y12 is insufficient or problematic. Apart from adenosine, there is a group of synthetic, selective, longer-lasting agonists of A2A and A2B receptors reported in the literature. This group includes agonists with good selectivity for A2A or A2B receptors, as well as non-selective compounds that activate more than one type of adenosine receptor. Chemically, most A2A and A2B adenosine receptor agonists are adenosine analogues, with either adenine or ribose substituted by single or multiple foreign substituents. However, a group of non-adenosine derivative agonists has also been described. This review aims to systematically describe known agonists of A2A and A2B receptors and review the available literature data on their effects on platelet function.
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Affiliation(s)
- Nina Wolska
- Department of Haemostasis and Haemostatic Disorders, Chair of Biomedical Science, Medical University of Lodz, 92-215 Lodz, Poland.
| | - Marcin Rozalski
- Department of Haemostasis and Haemostatic Disorders, Chair of Biomedical Science, Medical University of Lodz, 92-215 Lodz, Poland.
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Lauver DA, Kuszynski DS, Christian BD, Bernard MP, Teuber JP, Markham BE, Chen YE, Zhang H. DT-678 inhibits platelet activation with lower tendency for bleeding compared to existing P2Y 12 antagonists. Pharmacol Res Perspect 2019; 7:e00509. [PMID: 31372229 PMCID: PMC6658415 DOI: 10.1002/prp2.509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 12/22/2022] Open
Abstract
The novel clopidogrel conjugate, DT-678, is an effective inhibitor of platelets and thrombosis in preclinical studies. However, a comparison of the bleeding risk with DT-678 and currently approved P2Y12 antagonists has yet to be determined. The objective of this study was to evaluate the bleeding tendency of animals treated with clopidogrel, ticagrelor, and DT-678. Ninety-one New Zealand white rabbits were randomized to one of 13 treatment groups (n = 7). Platelet activation was assessed by flow cytometry and light transmission aggregometry before and after the administration of various doses of DT-678, clopidogrel, and ticagrelor. Tongue template bleeding times were also measured before and after drug treatment. Treatment with P2Y12 receptor antagonists caused a dose-dependent reduction in markers of platelet activation (P-selectin and integrin αIIbβ3) and aggregation in response to adenosine diphosphate stimulation. At the same doses required for platelet inhibition, clopidogrel and ticagrelor significantly prolonged bleeding times, while DT-678 did not. DT-678 and the FDA-approved P2Y12 antagonists clopidogrel and ticagrelor are effective inhibitors of platelet activation and aggregation. However, unlike clopidogrel and ticagrelor, DT-678 did not prolong bleeding times at equally effective antiplatelet doses. The results suggest a more favorable benefit/risk ratio for DT-678 and potential utility as part of a dual antiplatelet therapy regimen.
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Affiliation(s)
- Dale A. Lauver
- Department of Pharmacology and ToxicologyMichigan State UniversityEast LansingMIUSA
| | - Dawn S. Kuszynski
- Department of Pharmacology and ToxicologyMichigan State UniversityEast LansingMIUSA
| | - Barbara D. Christian
- Department of Pharmacology and ToxicologyMichigan State UniversityEast LansingMIUSA
| | - Matthew P. Bernard
- Department of Pharmacology and ToxicologyMichigan State UniversityEast LansingMIUSA
| | - James P. Teuber
- Department of Pharmacology and ToxicologyMichigan State UniversityEast LansingMIUSA
| | | | - Yuqing E. Chen
- Diapin Therapeutics, LLCAnn ArborMIUSA
- Department of PharmacologyUniversity of MichiganAnn ArborMIUSA
| | - Haoming Zhang
- Department of PharmacologyUniversity of MichiganAnn ArborMIUSA
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Magni G, Ceruti S. The role of adenosine and P2Y receptors expressed by multiple cell types in pain transmission. Brain Res Bull 2019; 151:132-143. [PMID: 30797817 DOI: 10.1016/j.brainresbull.2019.02.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 01/25/2019] [Accepted: 02/15/2019] [Indexed: 02/07/2023]
Abstract
The role of extracellular nucleotides and nucleosides as signaling molecules in cell-to-cell communication has now been clearly established. This is particularly true in the central and peripheral nervous system, where purines and pyrimidines are involved in both physiological and pathological interactions between neurons and surrounding glial cells. It can be thus foreseen that the purinergic system could represent a new potential target for the development of effective analgesics, also through the normalization of neuronal functions and the inhibition of glial cell activation. Research in the last 15 years has progressively confirmed this hypothesis, but no purinergic-based analgesics have reach the market so far; in the present review we have collected the more recent discoveries on the role of G protein-coupled P2Y nucleotide and of adenosine receptors expressed by both neurons and glial cells under painful conditions, and we have highlighted some of the challenges that must be faced to translate basic and preclinical studies to clinics.
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Affiliation(s)
- Giulia Magni
- Laboratory of Molecular and Cellular Pharmacology of Purinergic Transmission, Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Balzaretti, 9, 20133, Milan, Italy
| | - Stefania Ceruti
- Laboratory of Molecular and Cellular Pharmacology of Purinergic Transmission, Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Balzaretti, 9, 20133, Milan, Italy.
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Adenosine receptor agonists deepen the inhibition of platelet aggregation by P2Y 12 antagonists. Vascul Pharmacol 2018; 113:47-56. [PMID: 30471364 DOI: 10.1016/j.vph.2018.11.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 10/01/2018] [Accepted: 11/18/2018] [Indexed: 11/24/2022]
Abstract
Several adenosine receptor (AR) agonists have been shown in the past to possess anti-platelet potential; however, the adjunctive role of AR agonists in anti-platelet therapy with the use of P2Y12 receptor inhibitors has not been elucidated so far. This in vitro aggregation-based study investigates whether the inhibition of platelet function mediated by cangrelor or prasugrel metabolite can be potentiated by AR agonists. It evaluates the effect of non-selective (2-chloroadenosine), A2A-selective (UK 432097, MRE 0094, PSB 0777) and A2B-selective AR agonists (BAY 60-6583) on platelet function in relation to their toxicity, specificity towards adenosine receptor subtypes, structure and solubility. UK 432097, 2-chloroadenosine, MRE 0094 and PSB 0777 were found to be more or less potent inhibitors of ADP-induced platelet aggregation when acting alone, and that they remained non-cytotoxic to the cells. These AR agonists were also effective in the potentiation of the effects exerted by P2Y12 antagonists. Considering the estimated IC50 value, UK 432097, showing a relatively high binding affinity to the A2A adenosine receptor, has been identified as the most potent anti-aggregatory agent. This compound diminished platelet aggregation at nanomolar concentrations and further augmented platelet inhibition by P2Y12 antagonists by approx. 60% (P < .01). Our results indicate the importance of adenosine receptors as therapeutic targets and point out challenges and potential benefits of therapeutic use of a combined therapy of P2Y12 antagonist and AR agonist in cardioprotection. Our comparative analysis of the effects of AR agonists on platelet response in plasma and whole blood may indirectly suggest that other blood morphology elements contribute little to the inhibition of platelet function by AR agonists.
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Baqi Y, Müller CE. Antithrombotic P2Y 12 receptor antagonists: recent developments in drug discovery. Drug Discov Today 2018; 24:325-333. [PMID: 30291899 DOI: 10.1016/j.drudis.2018.09.021] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 08/31/2018] [Accepted: 09/27/2018] [Indexed: 12/16/2022]
Abstract
The P2Y12 receptor is one of eight known P2Y receptor subtypes, and belongs to the G-protein-coupled receptor (GPCR) family. The P2Y12 receptor is highly expressed on blood platelets and in the brain. Potent, selective, peripherally acting antagonists for the P2Y12 receptor are used clinically as antithrombotic drugs. Several different scaffolds have been identified as P2Y12 receptor antagonists, including irreversibly acting thienotetrahydropyridines (prodrugs), and reversible competitive antagonists, including adenine nucleotide analogs, piperazinyl-glutamate-quinolines, -pyridines, and -pyrimidines, and anthraquinone derivatives. Here, we provide an overview of the different scaffolds that have been developed as P2Y12 receptor antagonists, some of which have become important therapeutics.
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Affiliation(s)
- Younis Baqi
- Department of Chemistry, Faculty of Science, Sultan Qaboos University, PO Box 36, Postal Code 123, Muscat, Oman.
| | - Christa E Müller
- Pharma-Center Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, An der Immenburg 4, D-53121 Bonn, Germany
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Willeman T, Marlu R, Böhle H, Francony G, Jourdil JF, Fonrose X, Stanke-Labesque F. Lethal cerebral hemorrhage after ticagrelor intoxication: a specific antidote is urgently needed. Clin Toxicol (Phila) 2018; 56:1200-1203. [DOI: 10.1080/15563650.2018.1480026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Théo Willeman
- Laboratory of Pharmacology, Toxicology and Pharmacogenetics, Grenoble-Alpes University Hospital, Grenoble, France
| | - Raphael Marlu
- Hemostasis Laboratory, Grenoble-Alpes University Hospital, Grenoble, France
| | - Holger Böhle
- Department of Anesthesiology and Intensive Care, Grenoble-Alpes University Hospital, Grenoble, France
| | - Gilles Francony
- Department of Anesthesiology and Intensive Care, Grenoble-Alpes University Hospital, Grenoble, France
| | - Jean-François Jourdil
- Laboratory of Pharmacology, Toxicology and Pharmacogenetics, Grenoble-Alpes University Hospital, Grenoble, France
| | - Xavier Fonrose
- Laboratory of Pharmacology, Toxicology and Pharmacogenetics, Grenoble-Alpes University Hospital, Grenoble, France
| | - Françoise Stanke-Labesque
- Laboratory of Pharmacology, Toxicology and Pharmacogenetics, Grenoble-Alpes University Hospital, Grenoble, France
- INSERM U1042, HP2, Grenoble, France
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