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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

ABCC3 Polymorphisms and mRNA Expression Influence the Concentration of a Carboxylic Acid Metabolite in Patients on Clopidogrel and Aspirin Therapy

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Luchessi, Andre Ducati ; Concheiro, Marta ; Germano, Juliana de Freitas ; Silbiger, Vivian Nogueira ; Bortolin, Raul Hernandes ; Cruz, Angelines ; Quintela, Oscar ; Brion, Maria ; Carracedo, Angel ; Iniguez, Andres ; Bravo, Marisol ; Lopez-Rivadulla, Manuel ; Crespo Hirata, Rosario Dominguez ; Moraes Rego Sousa, Amanda Guerra ; Hirata, Mario Hiroyuki
Total Authors: 15
Document type: Journal article
Source: BASIC & CLINICAL PHARMACOLOGY & TOXICOLOGY; v. 120, n. 5, p. 466-474, MAY 2017.
Web of Science Citations: 1

Acetylsalicylic acid (ASA) and clopidogrel combined therapy has been reported to be beneficial in patients with acute coronary syndrome (ACS). Antiplatelet drug resistance, especially to clopidogrel, is a multifactorial phenomenon that affects a large number of ACS patients. The genetic contribution to this drug response is not fully elucidated. We investigated the relationship of ABC-type efflux subfamily C member 3 (ABCC3) polymorphisms and mRNA expression with plasma concentrations of clopidogrel, salicylic acid (SA) and a carboxylic acid metabolite (CAM). Clopidogrel, CAM and SA plasma concentrations were measured simultaneously by liquid chromatography-tandem mass spectrometry (LCMS/MS) from 83 ACS patients undergoing percutaneous coronary intervention. ABCC3 (rs757421, rs733392 and rs739923) and CYP2C19{*}2 (rs4244285) polymorphisms as well as mRNA expression were evaluated. A positive correlation was found between CAM concentrations and ABCC3 mRNA expression (r = 0.494, p < 0.0001). Patients carrying genotype AA (rs757421 variant) had higher CAM concentrations and ABCC3 mRNA expression as compared to those of GG + GA carriers (p = 0.017). A multiple linear regression analysis revealed that ABCC3 mRNA expression (p = 0.017), rs757421 AA genotype (p = 0.001), blood collection time (p = 0.018) and clopidogrel dose (p = 0.001) contributed to the concentration of CAM. No associations were observed for the CYP2C19{*}2 polymorphism. These results suggest that up-regulation of ABCC3 mRNA expression leads to increased plasma CAM levels through MRP3-mediated cell efflux. The ABCC3 rs757421 polymorphism may contribute to gene expression. Therefore, ABCC3 may be a potential biomarker for the response to clopidogrel. (AU)

FAPESP's process: 09/10862-4 - Analysis pharmacogenomics: coronary syndromes in patients who underwent double antiplatelet aggregation, with an indication for implantation of stent
Grantee:Amanda Guerra de Moraes Rego Souza
Support Opportunities: Regular Research Grants