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Coronary Progenitor Cells and Soluble Biomarkers in Cardiovascular Prognosis after Coronary Angioplasty
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Predictive value of the decrease in circulating dendritic cell precursors in stable coronary artery disease.

Atilla Yilmaz1, Tina Schaller, Iwona Cicha

  • 1Medical Clinic II, University Hospital of Erlangen, Erlangen, Germany. A.Yilmaz@web.de

Clinical Science (London, England : 1979)
|September 24, 2008
PubMed
Summary

Levels of circulating dendritic cell precursors (DCPs) are significantly lower in patients with stable coronary artery disease (CAD). This reduction in DCPs, including myeloid and plasmacytoid subsets, serves as an independent predictor for CAD presence and intervention needs.

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Area of Science:

  • Cardiovascular Research
  • Immunology
  • Vascular Biology

Background:

  • Dendritic cells (DCs) infiltrate atherosclerotic lesions, contributing to vascular inflammation.
  • Reduced circulating DC precursors (DCPs) were previously observed in acute coronary syndromes.
  • The role of DCP levels in stable coronary artery disease (CAD) remained unclear.

Purpose of the Study:

  • To investigate whether circulating DCP levels are reduced in patients with stable CAD.
  • To determine the correlation between DCP levels and the severity of stable CAD.
  • To assess DCPs as potential independent predictors of stable CAD.

Main Methods:

  • Flow cytometry was used to quantify circulating myeloid DCPs (mDCPs), plasmacytoid DCPs (pDCPs), and total DCPs (tDCPs).
  • 290 patients with suspected stable CAD were analyzed, with CAD severity assessed via coronary angiogram and a CAD score.
  • Logistic regression analysis identified independent predictors of CAD.

Main Results:

  • Patients with advanced stable CAD exhibited significantly lower levels of circulating mDCPs, pDCPs, and tDCPs compared to controls.
  • A significant inverse correlation was found between the CAD score and all measured DCP subsets.
  • Lower circulating DCP levels were also observed in patients requiring revascularization procedures (PCI or CABG).

Conclusions:

  • Patients with stable CAD demonstrate significantly reduced levels of circulating DCPs.
  • Decreased DCP levels are an independent predictor for the presence of stable CAD.
  • Circulating DCP levels may indicate the need for subsequent therapeutic interventions in stable CAD patients.