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Daron ÉCASK, Negri WT, Borges A, Lescano CH, Antunes E, Laurentiz RSD. Design, synthesis, and in vitro antiplatelet aggregation activities of taiwanin C. Nat Prod Res 2022:1-7. [DOI: 10.1080/14786419.2022.2036145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Érika C. A. S. K. Daron
- Departamento de Física e Química, Faculdade de Engenharia de Ilha Solteira, Unesp- Univ Estadual Paulista, Ilha Solteira, São Paulo, Brazil
| | - Wellington T. Negri
- Departamento de Física e Química, Faculdade de Engenharia de Ilha Solteira, Unesp- Univ Estadual Paulista, Ilha Solteira, São Paulo, Brazil
| | - Alexandre Borges
- Centro Universitário UNIFUNEC, Faculdade de Medicina, Santa Fé do Sul, São Paulo, Brazil
| | - Caroline H. Lescano
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil
| | - Edson Antunes
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil
| | - Rosangela S. de Laurentiz
- Departamento de Física e Química, Faculdade de Engenharia de Ilha Solteira, Unesp- Univ Estadual Paulista, Ilha Solteira, São Paulo, Brazil
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Leonardi GR, Lescano CH, Orsi FA, Monica FZ. ADENOSINE DIPHOSPHATE-INDUCED PLATELET AGGREGATION IS ENHANCED IN PLATELET-RICH PLASMA OBTAINED FROM PATIENTS WITH PRIMARY ANTIPHOSPHOLIPID SYNDROME WITH THROMBOSIS. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Zaminelli T, Magli E, Frecentese F, Lescano CH, Campos R, Saccone I, Corvino A, Di Vaio P, Giordano F, Luciano P, Fiorino F, Perissutti E, Santagada V, Severino B, Caliendo G, De Nucci G. Synthesis and Pharmacological Screening of Pyridopyrimidines as Effective Anti-Diarrheal Agents through the Suppression of Cyclic Nucleotide Accumulation. ChemistryOpen 2019; 8:464-475. [PMID: 31008011 PMCID: PMC6454219 DOI: 10.1002/open.201900060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/12/2019] [Indexed: 11/17/2022] Open
Abstract
The increased levels of cyclic nucleotides (cGMP and cAMP) in enterocytes trigger intracellular mechanisms of ion and fluid secretion into the lumen, causing secretory diarrhea. Twelve novel pyridopyrimidines derived from 5‐(3,5‐bistrifluoromethylphenyl)‐1,3‐dimethyl‐5,11‐dihydro‐1H‐indeno[2,1 : 5,6]pyrido[2,3‐d]pyrimidine‐2,4,6‐trione (FPIPP) were synthesized and evaluated on intracellular cyclic nucleotide accumulation. All compounds had no effect on either cyclic nucleotide basal levels or on pre‐contracted aortic rings. The metabolic activity and viability in T84 cells, assessed by MTT (3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyl tetrazolium bromide) and the LDH (lactate dehydrogenase) assays, respectively, were not affected by incubation with the compounds (50 μM). Compound VI almost abolished cGMP accumulation (94 % inhibition) induced by STa toxin in T834 cells and significantly reduced (69 %) forskolin‐induced cAMP accumulation in Jurkat cells. Compound VI was active in an in vivo model for diarrhea in rabbits. These results prompted us to perform a microscopic histopathological analysis of intestinal tissues, showing that only compound VI preserves the intestine without significant pathological changes and with a decreased inflammatory pattern in comparison to FPIPP. In vitro stability test revealed that compound VI is resistant to oxidation promoted by atmospheric oxygen.
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Affiliation(s)
- Tiago Zaminelli
- Superior Institute of Biomedical Science Ceará State University (UECE) Ceará Brazil
| | - Elisa Magli
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Francesco Frecentese
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Caroline H Lescano
- Superior Institute of Biomedical Science Ceará State University (UECE) Ceará Brazil
| | - Rafael Campos
- Superior Institute of Biomedical Science Ceará State University (UECE) Ceará Brazil
| | - Irene Saccone
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Angela Corvino
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Paola Di Vaio
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Flavia Giordano
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Paolo Luciano
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Ferdinando Fiorino
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Elisa Perissutti
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Vincenzo Santagada
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Beatrice Severino
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Giuseppe Caliendo
- Department of Pharmacy University of Naples «Federico II» Via D. Montesano, 49 80131 Naples Italy
| | - Gilberto De Nucci
- Superior Institute of Biomedical Science Ceará State University (UECE) Ceará Brazil
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Lescano CH, Freitas de Lima F, Mendes-Silvério CB, Justo AFO, da Silva Baldivia D, Vieira CP, Sanjinez-Argandoña EJ, Cardoso CAL, Mónica FZ, Pires de Oliveira I. Effect of Polyphenols From Campomanesia adamantium on Platelet Aggregation and Inhibition of Cyclooxygenases: Molecular Docking and in Vitro Analysis. Front Pharmacol 2018; 9:617. [PMID: 29946259 PMCID: PMC6005896 DOI: 10.3389/fphar.2018.00617] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 05/23/2018] [Indexed: 12/19/2022] Open
Abstract
Campomanesia adamantium is a medicinal plant of the Brazilian Cerrado. Different parts of its fruits are used in popular medicine to treat gastrointestinal disorders, rheumatism, urinary tract infections and inflammations. Despite its widespread use by the local population, the mechanisms involving platelet aggregation and the inhibition of cyclooxygenase by C. adamantium are unknown. This study evaluated the chemical composition, antioxidant activities and potential benefits of the C. adamantium peel extract (CAPE) and its components in the platelet aggregation induced by arachidonic acid in platelet-rich plasma. Aspects of the pharmacological mechanism were investigated as follows: platelet viability, calcium mobilization, levels of the cyclic nucleotides cAMP and cGMP, thromboxane B2 levels, and the inhibitory effects on COX-1 and COX-2 were studied in vitro and using molecular docking in the catalytic domain of these proteins. The major CAPE constituents standing out from the chemical analysis are the flavonoids, namely those of the flavones and chalcones class. The results showed that CAPE, quercetin and myricetin significantly decreased arachidonic acid-induced platelet aggregation; the assays showed that CAPE and quercetin decreased the mobilization of calcium and thromboxane B2 levels in platelets and increased cAMP and cGMP levels. Moreover, CAPE inhibited the activity of COX-1 and COX-2, highlighting that quercetin could potentially prevent the access of arachidonic acid more to the catalytic site of COX-1 than COX-2. These results highlight CAPE’s potential as a promising therapeutic candidate for the prevention and treatment of diseases associated with platelet aggregation.
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Affiliation(s)
| | | | | | - Alberto F O Justo
- Department of Pharmacology, University of Campinas, Campinas, Brazil
| | - Débora da Silva Baldivia
- Faculty of Biological and Environmental Sciences, Federal University of Grande Dourados, Dourados, Brazil
| | | | | | - Claudia A L Cardoso
- Center for Natural Resource Studies, University of Mato Grosso do Sul, Dourados, Brazil
| | - Fabíola Z Mónica
- Department of Pharmacology, University of Campinas, Campinas, Brazil
| | - Ivan Pires de Oliveira
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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Mendes-Silverio CB, Lescano CH, Zaminelli T, Sollon C, Anhê GF, Antunes E, Mónica FZ. Activation of soluble guanylyl cyclase with inhibition of multidrug resistance protein inhibitor-4 (MRP4) as a new antiplatelet therapy. Biochem Pharmacol 2018; 152:165-173. [PMID: 29605625 DOI: 10.1016/j.bcp.2018.03.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 03/27/2018] [Indexed: 12/21/2022]
Abstract
The intracellular levels of cyclic GMP are controlled by its rate of formation through nitric oxide-mediated stimulation of soluble guanylate cyclase (sGC) and its degradation by phosphodiesterases. Multidrug resistance protein 4 (MRP4) expressed in human platelets pumps cyclic nucleotides out of cells. In search for new antiplatelet strategies, we tested the hypothesis that sGC activation concomitant with MRP4 inhibition confers higher antiplatelet efficacy compared with monotherapy alone. This study was undertaken to investigate the pharmacological association of the sGC activator BAY 60-2770 with the MRP4 inhibitor MK571 on human washed platelets. Collagen- and thrombin-induced platelet aggregation and ATP-release reaction assays were performed. BAY 60-2770 (0.001-10 µM) produced significant inhibitions of agonist-induced platelet aggregation accompanied by reduced ATP-release. Pre-incubation with 10 µM MK571 alone had no significant effect on platelet aggregation and ATP release, but it produced a left displacement by about of 10-100-fold in the concentration-response curves to BAY 60-2770. Pre-incubation with MK571increased and decreased, respectively, the intracellular and extracellular levels of cGMP to BAY 60-2770, whereas the cAMP levels remained unchanged. The increased VASP-serine 239 phosphorylation in BAY 60-2770-treated platelets was enhanced by MK571. In Fluo-4-loaded platelets, BAY 60-2770 reduced the intracellular Ca2+ levels, an effect significantly potentiated by MK571. Flow cytometry assays showed that BAY 60-2770 reduces the αIIbβ3 integrin activation, which was further reduced by MK571 association. Blocking the MRP4-mediated efflux of cGMP may be a potential mechanism to enhance the antiplatelet efficacy of sGC activators.
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Affiliation(s)
- Camila B Mendes-Silverio
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Caroline H Lescano
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Tiago Zaminelli
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Carolina Sollon
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Gabriel F Anhê
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Edson Antunes
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Fabíola Z Mónica
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Sao Paulo, Brazil.
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