title: MicroRNA signatures in total peripheral blood as novel biomarkers for acute myocardial infarction.
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.
authors.affiliation: Department of Internal Medicine III, University of Heidelberg, Heidelberg, Germany.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Meder
authors.forename: Andreas
authors.initials: A
authors.lastname: Keller
authors.forename: Britta
authors.initials: B
authors.lastname: Vogel
authors.forename: Jan
authors.initials: J
authors.lastname: Haas
authors.forename: Farbod
authors.initials: F
authors.lastname: Sedaghat-Hamedani
authors.forename: Elham
authors.initials: E
authors.lastname: Kayvanpour
authors.forename: Steffen
authors.initials: S
authors.lastname: Just
authors.forename: Anne
authors.initials: A
authors.lastname: Borries
authors.forename: Jessica
authors.initials: J
authors.lastname: Rudloff
authors.forename: Petra
authors.initials: P
authors.lastname: Leidinger
authors.forename: Eckart
authors.initials: E
authors.lastname: Meese
authors.forename: Hugo A
authors.initials: HA
authors.lastname: Katus
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Rottbauer
mesh_terms: D000368:Aged; D015415:Biomarkers / Q000097:blood; D016022:Case-Control Studies; D005260:Female; D015894:Genome, Human; D023281:Genomics; D006801:Humans; D008297:Male; D035683:MicroRNAs / Q000097:blood*; D008875:Middle Aged; D009203:Myocardial Infarction / Q000097:blood* / Q000175:diagnosis / Q000209:etiology; D012680:Sensitivity and Specificity; D020107:Troponin T / Q000097:blood
chemical_list: D015415:Biomarkers; D035683:MicroRNAs; D020107:Troponin T