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miRNA-197 and miRNA-223 Predict Cardiovascular Death in a Cohort of Patients with Symptomatic Coronary Artery Disease

Author

Listed:
  • Christian Schulte
  • Simon Molz
  • Sebastian Appelbaum
  • Mahir Karakas
  • Francisco Ojeda
  • Denise M Lau
  • Tim Hartmann
  • Karl J Lackner
  • Dirk Westermann
  • Renate B Schnabel
  • Stefan Blankenberg
  • Tanja Zeller

Abstract

Background: Circulating microRNAs (miRNAs) have been described as potential diagnostic biomarkers in cardiovascular disease and in particular, coronary artery disease (CAD). Few studies were undertaken to perform analyses with regard to risk stratification of future cardiovascular events. miR-126, miR-197 and miR-223 are involved in endovascular inflammation and platelet activation and have been described as biomarkers in the diagnosis of CAD. They were identified in a prospective study in relation to future myocardial infarction. Objectives: The aim of our study was to further evaluate the prognostic value of these miRNAs in a large prospective cohort of patients with documented CAD. Methods: Levels of miR-126, miR-197 and miR-223 were evaluated in serum samples of 873 CAD patients with respect to the endpoint cardiovascular death. miRNA quantification was performed using real time polymerase chain reaction (RT-qPCR). Results: The median follow-up period was 4 years (IQR 2.78–5.04). The median age of all patients was 64 years (IQR 57–69) with 80.2% males. 38.9% of the patients presented with acute coronary syndrome (ACS), 61.1% were diagnosed with stable angina pectoris (SAP). Elevated levels of miRNA-197 and miRNA-223 reliably predicted future cardiovascular death in the overall group (miRNA-197: hazard ratio (HR) 1.77 per one standard deviation (SD) increase (95% confidence interval (CI) 1.20; 2.60), p = 0.004, C-index 0.78; miRNA-223: HR 2.23 per one SD increase (1.20; 4.14), p = 0.011, C-index 0.80). In ACS patients the prognostic power of both miRNAs was even higher (miRNA-197: HR 2.24 per one SD increase (1.25; 4.01), p = 0.006, C-index 0.89); miRA-223: HR 4.94 per one SD increase (1.42; 17.20), p = 0.012, C-index 0.89). Conclusion: Serum-derived circulating miRNA-197 and miRNA-223 were identified as predictors for cardiovascular death in a large patient cohort with CAD. These results reinforce the assumption that circulating miRNAs are promising biomarkers with prognostic value with respect to future cardiovascular events.

Suggested Citation

  • Christian Schulte & Simon Molz & Sebastian Appelbaum & Mahir Karakas & Francisco Ojeda & Denise M Lau & Tim Hartmann & Karl J Lackner & Dirk Westermann & Renate B Schnabel & Stefan Blankenberg & Tanja, 2015. "miRNA-197 and miRNA-223 Predict Cardiovascular Death in a Cohort of Patients with Symptomatic Coronary Artery Disease," PLOS ONE, Public Library of Science, vol. 10(12), pages 1-12, December.
    • Handle: RePEc:plo:pone00:0145930
    DOI: 10.1371/journal.pone.0145930
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    1. Jonathan B. Johnnidis & Marian H. Harris & Robert T. Wheeler & Sandra Stehling-Sun & Michael H. Lam & Oktay Kirak & Thijn R. Brummelkamp & Mark D. Fleming & Fernando D. Camargo, 2008. "Regulation of progenitor cell proliferation and granulocyte function by microRNA-223," Nature, Nature, vol. 451(7182), pages 1125-1129, February.
    2. Swanhild U Meyer & Sebastian Kaiser & Carola Wagner & Christian Thirion & Michael W Pfaffl, 2012. "Profound Effect of Profiling Platform and Normalization Strategy on Detection of Differentially Expressed MicroRNAs – A Comparative Study," PLOS ONE, Public Library of Science, vol. 7(6), pages 1-13, June.
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