Plasma and Platelet microRNAs in Clopidogrel Low Response Patients

Summary

Clopidogrel is an important anti-platelet agent.However, about 30% of the coronary artery disease patients presented clopidogrel low response (CLR).Previous studies showed that the cardiovascular event ratio of the CLR patients was 4.4 times of the normal responders. It is known that the plasma and platelet miRNAs are determined by different disease status when platelets are released from the megakaryocyte, and the platelet miRNAs can adjust the expressions of the platelet's receptors and proteins.The purpose of this study is to find multiple platelet miRNAs involved in the development of CLR, and platelet miRNAs cause CLR through adjusting the expressions of the key receptors and proteins in the ADP activating pathway and consequently reducing their responses to clopidogrel. The CLR will be detected by light transmission aggregometry (LTA) and vasodilator-stimulated phosphoprotein phosphorylation (VASP-P). Differential expressions of plasma and platelet miRNAs profile in CLR patients will be screened by deep sequencing and validated to investigate the association between plasma and platelet miRNAs profile and CLR as well as the patients' prognosis.The study results would serve as markers for individualized anti-platelet treatment, and supply new targets for the treatment of coronary artery disease.

Timeline

Start

2015-01

Primary completion

2016-12

Completion

2016-12

Publications

• Background Yusuf S, Zhao F, Mehta SR, Chrolavicius S, Tognoni G, Fox KK; Clopidogrel in Unstable Angina to Prevent Recurrent Events Trial Investigators. Effects of clopidogrel in addition to aspirin in patients with acute coronary syndromes without ST-segment elevation. N Engl J Med. 2001 Aug 16;345(7):494-502. doi: 10.1056/NEJMoa010746.
• Background Siller-Matula JM, Trenk D, Schror K, Gawaz M, Kristensen SD, Storey RF, Huber K; EPA (European Platelet Academy). Response variability to P2Y12 receptor inhibitors: expectations and reality. JACC Cardiovasc Interv. 2013 Nov;6(11):1111-28. doi: 10.1016/j.jcin.2013.06.011.
• Background Calin GA, Croce CM. MicroRNA-cancer connection: the beginning of a new tale. Cancer Res. 2006 Aug 1;66(15):7390-4. doi: 10.1158/0008-5472.CAN-06-0800.
• Background Hu Z, Chen X, Zhao Y, Tian T, Jin G, Shu Y, Chen Y, Xu L, Zen K, Zhang C, Shen H. Serum microRNA signatures identified in a genome-wide serum microRNA expression profiling predict survival of non-small-cell lung cancer. J Clin Oncol. 2010 Apr 1;28(10):1721-6. doi: 10.1200/JCO.2009.24.9342. Epub 2010 Mar 1.
• Background Clancy L, Freedman JE. New paradigms in thrombosis: novel mediators and biomarkers platelet RNA transfer. J Thromb Thrombolysis. 2014 Jan;37(1):12-6. doi: 10.1007/s11239-013-1001-1.
• Background Landry P, Plante I, Ouellet DL, Perron MP, Rousseau G, Provost P. Existence of a microRNA pathway in anucleate platelets. Nat Struct Mol Biol. 2009 Sep;16(9):961-6. doi: 10.1038/nsmb.1651. Epub 2009 Aug 9.
• Background Dangelmaier C, Jin J, Smith JB, Kunapuli SP. Potentiation of thromboxane A2-induced platelet secretion by Gi signaling through the phosphoinositide-3 kinase pathway. Thromb Haemost. 2001 Feb;85(2):341-8.
• Background Li C, Fang Z, Jiang T, Zhang Q, Liu C, Zhang C, Xiang Y. Serum microRNAs profile from genome-wide serves as a fingerprint for diagnosis of acute myocardial infarction and angina pectoris. BMC Med Genomics. 2013 May 4;6:16. doi: 10.1186/1755-8794-6-16.
• Background Nagalla S, Shaw C, Kong X, Kondkar AA, Edelstein LC, Ma L, Chen J, McKnight GS, Lopez JA, Yang L, Jin Y, Bray MS, Leal SM, Dong JF, Bray PF. Platelet microRNA-mRNA coexpression profiles correlate with platelet reactivity. Blood. 2011 May 12;117(19):5189-97. doi: 10.1182/blood-2010-09-299719. Epub 2011 Mar 17.
• Background Katz MG, Fargnoli AS, Williams RD, Kendle AP, Steuerwald NM, Bridges CR. MiRNAs as potential molecular targets in heart failure. Future Cardiol. 2014 Nov;10(6):789-800. doi: 10.2217/fca.14.64.
• Background Song MA, Paradis AN, Gay MS, Shin J, Zhang L. Differential expression of microRNAs in ischemic heart disease. Drug Discov Today. 2015 Feb;20(2):223-35. doi: 10.1016/j.drudis.2014.10.004. Epub 2014 Oct 23.
• Background Mitchell PS, Parkin RK, Kroh EM, Fritz BR, Wyman SK, Pogosova-Agadjanyan EL, Peterson A, Noteboom J, O'Briant KC, Allen A, Lin DW, Urban N, Drescher CW, Knudsen BS, Stirewalt DL, Gentleman R, Vessella RL, Nelson PS, Martin DB, Tewari M. Circulating microRNAs as stable blood-based markers for cancer detection. Proc Natl Acad Sci U S A. 2008 Jul 29;105(30):10513-8. doi: 10.1073/pnas.0804549105. Epub 2008 Jul 28.

Drugs

Indications