Original Contribution

Basic Research in Cardiology

, Volume 106, Issue 1, pp 13-23

MicroRNA signatures in total peripheral blood as novel biomarkers for acute myocardial infarction

  • Benjamin MederAffiliated withDepartment of Internal Medicine III, University of Heidelberg
  • , Andreas KellerAffiliated withBiomarker Discovery Center Heidelberg
  • , Britta VogelAffiliated withDepartment of Internal Medicine III, University of Heidelberg
  • , Jan HaasAffiliated withDepartment of Internal Medicine III, University of Heidelberg
  • , Farbod Sedaghat-HamedaniAffiliated withDepartment of Internal Medicine III, University of Heidelberg
  • , Elham KayvanpourAffiliated withDepartment of Internal Medicine III, University of Heidelberg
  • , Steffen JustAffiliated withDepartment of Internal Medicine III, University of Heidelberg
  • , Anne BorriesAffiliated withBiomarker Discovery Center Heidelberg
  • , Jessica RudloffAffiliated withDepartment of Internal Medicine III, University of Heidelberg
    • , Petra LeidingerAffiliated withDepartment of Human Genetics, Medical School, Saarland University
    • , Eckart MeeseAffiliated withDepartment of Human Genetics, Medical School, Saarland University
    • , Hugo A. KatusAffiliated withDepartment of Internal Medicine III, University of Heidelberg
    • , Wolfgang RottbauerAffiliated withDepartment of Internal Medicine III, University of HeidelbergDepartment of Medicine II, University of Ulm Email author 

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Abstract

MicroRNAs (miRNAs) are important regulators of adaptive and maladaptive responses in cardiovascular diseases and hence are considered to be potential therapeutical targets. However, their role as novel biomarkers for the diagnosis of cardiovascular diseases still needs to be systematically evaluated. We assessed here for the first time whole-genome miRNA expression in peripheral total blood samples of patients with acute myocardial infarction (AMI). We identified 121 miRNAs, which are significantly dysregulated in AMI patients in comparison to healthy controls. Among these, miR-1291 and miR-663b show the highest sensitivity and specificity for the discrimination of cases from controls. Using a novel self-learning pattern recognition algorithm, we identified a unique signature of 20 miRNAs that predicts AMI with even higher power (specificity 96%, sensitivity 90%, and accuracy 93%). In addition, we show that miR-30c and miR-145 levels correlate with infarct sizes estimated by Troponin T release. The here presented study shows that single miRNAs and especially miRNA signatures derived from peripheral blood, could be valuable novel biomarkers for cardiovascular diseases.

Keywords

Cardiovascular diseases Diagnosis Myocardial infarction Biomarker MicroRNA