Circulating fibrocyte levels correlate with left ventricular mass in middle-aged healthy adults without hypertension

Daniel S Feuer1, Borna Mehrad1,2, Ellen C Keeley1,3

  • 1Department of Medicine, University of Florida, Gainesville, FL, United States of America.

Insights

Circulating fibrocytes correlate with left ventricular mass in healthy adults. These cells may predict future hypertension development.

Area of Science:

  • Cardiovascular Research
  • Immunology
  • Cell Biology

Background:

  • Fibrocytes, bone marrow-derived cells, contribute to arterial fibrosis in hypertension.
  • Elevated left ventricular (LV) mass is a hallmark of hypertensive cardiovascular damage.

Purpose of the Study:

  • To investigate the association between circulating fibrocytes and LV mass in non-hypertensive adults.
  • To explore fibrocytes as potential early biomarkers for cardiovascular changes.

Main Methods:

  • Peripheral blood samples were collected from 13 middle-aged, non-hypertensive adults.
  • Fibrocyte levels and their activated phenotypes were quantified.
  • Cardiac magnetic resonance imaging (MRI) was used to assess LV mass.

Main Results:

  • A significant correlation was found between total fibrocytes (CD45+Col1+) and LV mass index (r=0.71, p=0.006).
  • Specific fibrocyte subsets expressing CCR2, CCR5, CCR7, CXCR4, α-SMA, CD133, and pSTAT6 also correlated with LV mass index.
  • These findings suggest fibrocytes are linked to cardiac remodeling even in the absence of hypertension.

Conclusions:

  • Circulating fibrocytes are associated with LV mass index in middle-aged adults without hypertension.
  • Fibrocytes may serve as an early indicator or harbinger for the future development of hypertension and associated cardiac changes.
Abstract

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