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Updated: Sep 11, 2025

Isolation and Purification of Murine Cardiac Pericytes

Isolation and Purification of Murine Cardiac Pericytes

Published on: August 16, 2019

Pericytes in mouse heart.

Guiling Zhao^1,2, W Jonathan Lederer^1,2

¹Laboratory of Molecular Cardiology, Center for Biomedical Engineering and Technology, University of Maryland School of Medicine, Baltimore, MD, United States.

Frontiers in Physiology

|August 14, 2025

Summary

This summary is machine-generated.

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Cardiac pericytes, or mural cells, are abundant and surprisingly organized in the heart, forming "bridging" structures between capillaries and myocytes. This anatomical arrangement suggests vital signaling and contractile roles in heart function.

Area of Science:

Cardiovascular Biology
Cellular Biology
Microcirculation Research

Background:

Pericytes, or mural cells, regulate blood flow and are challenging to study in the heart due to motion and depth.
Existing methods limit high-resolution, real-time observation of cardiac pericyte function under physiological conditions.

Purpose of the Study:

To visualize and quantitatively characterize cardiac pericytes in the heart at physiological pressure and temperature.
To investigate the anatomical organization and potential functions of cardiac pericytes.

Main Methods:

Utilized a perfused papillary muscle preparation (Z-Prep) for real-time imaging.
Employed z-stack confocal microscopy to analyze vascular anatomy and pericyte organization.
Observed coronary arteries, arterioles, venules, capillaries, and myocytes in situ.

Keywords:

capillary confocal imaging heart microcirculation pericyte

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Dynamic Measurement and Imaging of Capillaries, Arterioles, and Pericytes in Mouse Heart

Published on: July 29, 2020

Isolation of Type I and Type II Pericytes from Mouse Skeletal Muscles

Isolation of Type I and Type II Pericytes from Mouse Skeletal Muscles

Published on: May 26, 2017

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Last Updated: Sep 11, 2025

Isolation and Purification of Murine Cardiac Pericytes

Isolation and Purification of Murine Cardiac Pericytes

Published on: August 16, 2019

Dynamic Measurement and Imaging of Capillaries, Arterioles, and Pericytes in Mouse Heart

Dynamic Measurement and Imaging of Capillaries, Arterioles, and Pericytes in Mouse Heart

Published on: July 29, 2020

Isolation of Type I and Type II Pericytes from Mouse Skeletal Muscles

Isolation of Type I and Type II Pericytes from Mouse Skeletal Muscles

Published on: May 26, 2017

Main Results:

Discovered a high abundance of pericytes in native cardiac tissue.
Identified extensive pericyte spread on capillaries and novel
bridging
pericyte extensions along myocytes.
Observed pericyte extensions connecting capillaries and intimately associating with myocytes.

Conclusions:

Cardiac pericytes exhibit a unique anatomical organization, suggesting roles in signaling, communication, and contractility.
The observed durability of pericyte organization challenges assumptions of fragility in the contracting heart.
This study provides a foundation for future functional investigations of cardiac pericytes in health and disease.