Engineering hiPSC cardiomyocyte in vitro model systems for functional and structural assessment.

Area of Science:

• Cardiology
• Biomedical Engineering
• Stem Cell Biology

Background:

• Studying human cardiomyopathies and therapies is limited by current in vitro models.
• Cardiomyocytes' function is sensitive to their microenvironment, including mechanical and biochemical cues.
• Existing models lack precise control over cellular genetics and microenvironment.

Purpose of the Study:

• To review critical factors in the myocardium microenvironment affecting cardiomyocyte structure and function.
• To demonstrate the utility of engineered microphysiological systems (MPS) for cardiac research.
• To highlight the application of hiPSC-CMs and MPS in disease modeling and drug discovery.

Main Methods:

• Utilizing human induced pluripotent stem cell (hiPSC)-derived cardiomyocytes (CMs).
• Employing microphysiological systems (MPS) for controlled in vitro environments.
• Integrating genetic and microenvironmental control with quantitative functional measurements.

Main Results:

• hiPSC-CMs and MPS enable precise control over cellular genetics and microenvironment.
• These systems allow for quantitative assessment of cardiomyocyte mechanical function and intracellular organization.
• Engineered MPS provide a platform for studying cardiac development and disease.

Conclusions:

• The combination of hiPSC-CMs and MPS represents a significant advancement in cardiac in vitro modeling.
• These advanced models facilitate a deeper understanding of cardiomyopathy mechanisms.
• This approach accelerates the development and testing of novel therapeutic strategies for heart diseases.