Equilibrative nucleoside transporter 1 gene polymorphisms and clinical outcomes following acute coronary syndromes: findings from the PLATelet inhibition and patient Outcomes (PLATO) study

Platelets
William A E ParkerPLATO Investigators

Abstract

In the PLATelet inhibition and patient Outcomes (PLATO) study, the P2Y12 inhibitors ticagrelor and clopidogrel were compared in the treatment of acute coronary syndromes (ACS). Ticagrelor was shown to reduce occurrence of the primary end point - a composite of death from vascular causes, myocardial infarction, or stroke - compared to clopidogrel. Ticagrelor's pleiotropic effects on reuptake of adenosine via inhibition of equilibrative nucleoside transporter 1 (ENT1) have been hypothesized to contribute to this. Several polymorphisms of ENT1 are known to exist. We explored the interaction between ENT1 polymorphisms and clinical outcomes in ACS patients participating in the PLATO genetic substudy. Using genotyping data obtained in a genome-wide association study, the gene region encoding ENT1 was assessed and 94 polymorphisms were identified. After quality control filtering, data from 9943 participants were included. Subjects were divided into discovery (phase 1, n = 3970) and replication (phase 2, n = 5973) cohorts. Cox-regression analysis of the relationship between variants and seven efficacy and safety outcomes was performed in discovery, replication, and combined cohorts. Treatment-marker interactions were also determined. A...Continue Reading

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Citations

Nov 25, 2020·Chemical Reviews·Nicholas J Wright, Seok-Yong Lee

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