Heart-on-a-Chip: Theory, Evidence, and Personalised Medicine

Area of Science:

• Biomedical Engineering
• Cardiovascular Research
• Translational Medicine

Background:

• Traditional cardiovascular research using animal models and cell cultures has limitations in mimicking human heart function and disease.
• Organ-on-chip technology, specifically heart-on-a-chip (HOC), offers a novel microenvironment replication for advanced translational research.

Purpose of the Study:

• Introduce clinicians to heart-on-a-chip (HOC) technology as a more accurate and reliable alternative for studying heart disease and drug safety.
• Highlight advancements in HOC methods, including scaffold-based techniques and 3D bioprinting for realistic tissue reconstruction.
• Discuss improvements in monitoring cardiomyocyte function and electrophysiological replication.

Main Methods:

• Review of current advancements in scaffold-based HOC methods using decellularised extracellular matrix.
• Description of innovative techniques like three-dimensional bioprinting for heart tissue reconstruction.
• Explanation of artificial stimulation methods for replicating cardiac electrophysiology and real-time monitoring.

Main Results:

• HOC models provide a more accurate representation of human heart function and disease pathophysiology.
• Scaffold-based HOC and 3D bioprinting enable realistic reconstruction of heart tissue architecture and cellular orientation.
• Enhanced monitoring techniques offer insights into cardiomyocyte function and electrophysiological pathways.

Conclusions:

• HOC technology represents a significant advancement, reducing dependence on animal testing for cardiovascular research and drug evaluation.
• This technology enhances patient safety by minimizing risks of drug-induced cardiotoxicity.
• HOC models pave the way for personalized medicine through patient-specific cardiac models, transforming cardiovascular diagnostics and care.