Endothelial Progenitor Cell Mobilization and Platelet Microparticle Release Are Influenced by Clopidogrel Plasma Levels in Stable Coronary Artery Disease

Endothelial Progenitor Cell Mobilization and Platelet Microparticle Release Are Influenced by Clopidogrel Plasma Levels in Stable Coronary Artery Disease

Author Franca, Carolina N. Autor UNIFESP Google Scholar
Pinheiro, Luiz F. M. Autor UNIFESP Google Scholar
Izar, Maria C. O. Autor UNIFESP Google Scholar
Brunialti, Milena K. C. Autor UNIFESP Google Scholar
Salomao, Reinaldo Autor UNIFESP Google Scholar
Bianco, Henrique T. Autor UNIFESP Google Scholar
Kasmas, Soraia H. Autor UNIFESP Google Scholar
Barbosa, Simone P. Autor UNIFESP Google Scholar
Nucci, Gilberto de Google Scholar
Fonseca, Francisco A. H. Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Natl Inst Complex Fluids
Universidade Estadual de Campinas (UNICAMP)
Abstract Background: Increased numbers of endothelial (EMP) and platelet (PMP) microparticles have been related to cardiovascular risk factors and coronary artery disease. Little is known about the early effects of statins and clopidogrel on these new biomarkers of vascular homeostasis. the aim of the present study was to evaluate pharmacokinetic interactions between atorvastatin and clopidogrel and their effects, alone or combined, on EMP, PMP, and endothelial progenitor cells (EPC).Methods and Results: A prospective open-label study enrolled subjects with stable coronary disease (n=26). Drugs were given daily for 3 weeks (atorvastatin 80 mg, visits 1-3; clopidogrel 75 mg, visits 2-4). Counts of EPC (CD34+/CD133+/KDR+), EMP (CD51+) and PMP (CD42+/CD31+), and pharmacokinetic parameters over 24 h were assessed at each visit. Atorvastatin plasma concentrations were increased by concomitant therapy with clopidogrel (maximum serum concentration [C-max], P=0.002; area under the clopidogrel or atorvastatin plasma concentration vs. time curve from 0 to the last detectable concentration [AUC(last)], P=0.03). After atorvastatin withdrawal there was an increase in clopidogrel plasma concentrations (C-max, P=0.009; AUC(last), P=0.039). PMP were inversely correlated with clopidogrel C. on visit 3 (rho=-0.57, P=0.006) and on visit 4 (rho=-0.54, P=0.01), and with clopidogrel AUC(last) on visit 3 (rho=-0.44, P=0.04), and on visit 4 (rho=-0.57, P=0.005). in addition, clopidogrel C-max was correlated with EPC (CD133+/KDR+) on visit 4 (rho=0.48, P=0.025). No correlations of atorvastatin and MP or EPC were found.Conclusions: the balance between platelet MP release and EPC mobilization seems influenced by clopidogrel plasma levels, suggesting a protective mechanism on coronary artery disease. (Circ J 2012; 76: 729-736)
Keywords Clopidogrel
Endothelial progenitor cells
Platelets
Pharmacokinetics
Statin
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Date 2012-03-01
Published in Circulation Journal. Kyoto: Japanese Circulation Soc, v. 76, n. 3, p. 729-736, 2012.
ISSN 1346-9843 (Sherpa/Romeo, impact factor)
Publisher Japanese Circulation Soc
Extent 729-736
Origin http://dx.doi.org/10.1253/circj.CJ-11-1145
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000300922900034
URI http://repositorio.unifesp.br/handle/11600/34647

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