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Cell-Free circulating DNA: a new biomarker for the acute coronary syndrome

Ming Cui1, Mengkang Fan, Rongrong Jing

  • 1Center of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China.

Cardiology
|February 1, 2013
PubMed

Insights

Elevated cell-free circulating DNA (cf-DNA) levels are significantly higher in acute coronary syndrome (ACS) patients. This finding suggests cf-DNA may serve as a diagnostic and prognostic biomarker for ACS severity and risk stratification.

Area of Science:

  • Biochemistry
  • Cardiology
  • Molecular Diagnostics

Background:

  • Cell-free circulating DNA (cf-DNA) concentrations correlate with prognosis in various diseases.
  • The association between cf-DNA and acute coronary syndrome (ACS) is not well-established.
  • Detection of cf-DNA in ACS using branched DNA (bDNA)-based Alu assay lacks data.

Purpose of the Study:

  • To investigate cf-DNA concentrations in ACS patients.
  • To explore the relationship between cf-DNA levels and clinical features in ACS.
  • To evaluate cf-DNA as a potential biomarker in ACS.

Main Methods:

  • Plasma cf-DNA concentrations were measured using a bDNA-based Alu assay.
  • 137 ACS patients, 60 healthy individuals, and 13 stable angina (SA) patients were included.
  • Correlations with Gensini and GRACE scores were analyzed.

Main Results:

  • ACS patients exhibited significantly higher plasma cf-DNA concentrations compared to healthy and SA controls.
  • ST-segment elevation myocardial infarction patients showed the highest cf-DNA levels.
  • Positive correlations were observed between cf-DNA and Gensini/GRACE scoring in ACS.

Conclusions:

  • cf-DNA may serve as a valuable marker for ACS diagnosis.
  • cf-DNA can potentially predict coronary artery lesion severity.
  • Elevated cf-DNA levels aid in risk stratification for ACS patients.
Abstract

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