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BioMed Research International
Volume 2016, Article ID 3968206, 5 pages
http://dx.doi.org/10.1155/2016/3968206
Research Article

Modulation of Circulating MicroRNAs Levels during the Switch from Clopidogrel to Ticagrelor

1Division of Cardiology, Department of Medical and Surgical Sciences, Magna Græcia University, 88100 Catanzaro, Italy
2URT-CNR, Department of Medicine, Consiglio Nazionale delle Ricerche, 88100 Catanzaro, Italy

Received 30 January 2016; Revised 20 April 2016; Accepted 15 May 2016

Academic Editor: Laurent Metzinger

Copyright © 2016 Annarita Carino et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. Circulating microRNAs are appealing biomarkers to monitor several processes underlying cardiovascular diseases. Platelets are a major source for circulating microRNAs. Interestingly, the levels of specific microRNAs were reported to correlate with the level of platelet activation. The aim of the present study was to test whether the treatment with the novel antiplatelet agent, ticagrelor, is associated with modulation in the levels of key platelet-derived microRNAs. Methods and Results. Patients were randomly selected from those participating in the SHIFT-OVER study, in which we had previously evaluated the effect of the therapeutic switch from clopidogrel to ticagrelor on platelet aggregation. Circulating levels of selected microRNAs were measured before and after the therapeutic switch from a dual antiplatelet therapy including acetylsalicylic acid (ASA) and clopidogrel to the more potent ticagrelor. Interestingly, the circulating levels of miR-126 (), miR-223 (), and miR-150 () were significantly reduced, while the levels of miR-96 were increased (). No substantial differences were observed for the remaining microRNAs. Conclusions. Switching from a dual antiplatelet treatment with clopidogrel to ticagrelor is associated with significant modulation in the circulating levels of specific microRNAs. If confirmed in larger, independent cohorts, our results pave the way for the use of circulating microRNAs as biomarkers of platelets activity in response to specific pharmacological treatments.