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Updated: Jun 10, 2025

Creating a Structurally Realistic Finite Element Geometric Model of a Cardiomyocyte to Study the Role of Cellular Architecture in Cardiomyocyte Systems Biology

Creating a Structurally Realistic Finite Element Geometric Model of a Cardiomyocyte to Study the Role of Cellular Architecture in Cardiomyocyte Systems Biology

Published on: April 18, 2018

In Situ Structural Characterization of Cardiomyocyte Microenvironment by Multimodal STED Microscopy.

Zhao Zhang¹, Bruce Z Gao¹, Tong Ye^1,2

¹Department of Bioengineering, Clemson University, Clemson, SC 29634, USA.

|October 11, 2024

Summary

This summary is machine-generated.

This study uses advanced microscopy to reveal the intricate cardiomyocyte microenvironment, detailing the basement membrane and capillary structures crucial for heart function. These findings offer new insights into cardiac mechanics and development.

Keywords:

SHG microscopy STED microscopy autofluorescence immunofluorescence myocardium quantitative microscopy

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Last Updated: Jun 10, 2025

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Area of Science:

Cardiovascular Biology
Microscopy
Biophysics

Background:

Cardiomyocytes interact with the extracellular matrix (ECM), including the basement membrane (BM), which is vital for cardiac structure and function.
Pericellular structures are critical for understanding ECM-cardiomyocyte interactions but are often below the resolution of conventional microscopy.

Purpose of the Study:

To characterize the cardiomyocyte microenvironment at a subdiffractional level.
To enable quantitative assessment of myocardial structures and their relationship with cardiomyocytes.

Main Methods:

Multimodal stimulated emission depletion (STED) microscopy was employed for high-resolution imaging of myocardial tissue.
Second harmonic generation and autofluorescence were used for multiplexed 3D imaging and protein distribution analysis.

Main Results:

STED microscopy visualized cardiomyocyte basement membrane (BM) structures and myocardial capillaries at the subdiffractional level.
Quantitative measurements of sarcomere length and capillary density were obtained, allowing for structural assessment.
The study provided multi-scale and multi-aspect characterization of the cardiomyocyte microenvironment.

Conclusions:

Advanced multimodal STED microscopy can resolve fine structures within the cardiomyocyte microenvironment.
Quantitative analysis of myocardial structures, including BM and capillaries, is feasible with this technique.
This approach enhances understanding of cardiac geometry and function by detailing ECM-cardiomyocyte interactions.