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Related Experiment Video

Updated: May 23, 2026

Analysis of Tubular Membrane Networks in Cardiac Myocytes from Atria and Ventricles

Analysis of Tubular Membrane Networks in Cardiac Myocytes from Atria and Ventricles

Published on: October 15, 2014

Telocytes form networks in normal cardiac tissues.

M C Rusu¹, F Pop, S Hostiuc

¹Division of Anatomy, Faculty of Dental Medicine, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.

Histology and Histopathology

|April 5, 2012

Summary

Telocytes, interstitial cells in the heart, form intricate networks within cardiac tissue. These findings reveal a previously suggested network structure of telocytes in the human heart.

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Area of Science:

Cardiovascular Biology
Cell Biology
Histology

Background:

Telocytes (TCs) are interstitial cells characterized by long prolongations called telopodes.
Previous research suggested TCs might form networks within cardiac tissues.

Purpose of the Study:

To investigate the presence and network formation of telocytes in normal human cardiac tissue.
To ultrastructurally evaluate cardiac telocytes using transmission electron microscopy.

Main Methods:

Immunohistochemistry using CD117/c-kit antibodies on human autopsy cardiac samples.
Ultrastructural analysis of rat ventricular samples via transmission electron microscopy.

Main Results:

Identified c-kit positive telocytes in subepicardium, subepicardial arteries, subepicardial fat, and subendocardium.
Light and electron microscopy confirmed intramyocardial networks formed by bipolar telocytes.
Larger multipolar telocytes were observed between cardiac muscle bundles.

Conclusions:

The study provides evidence supporting the existence of a cardiac network of telocytes.
These findings contribute to understanding the interstitial cell network in the heart.