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Updated: Nov 18, 2025
Developing 3D Organized Human Cardiac Tissue within a Microfluidic Platform
Published on: June 15, 2021
Mimicking cardiac tissue complexity through physical cues: A review on cardiac tissue engineering approaches
Troy Hendrickson1, Chiara Mancino2, Lauren Whitney3
1Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston Methodist, Houston, TX, USA; Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, TX, USA; Texas A&M MD/PhD Program, Texas A&M Health Science Center, College Station, TX, USA.
Insights
Engineered heart tissues (EHTs) show promise for treating cardiovascular disease. Advanced designs incorporating contraction, conduction, and vascularization are crucial for functional cardiac repair.
Area of Science:
- Biomedical Engineering
- Regenerative Medicine
- Cardiovascular Research
Background:
- Cardiovascular diseases are the leading global cause of death.
- Current treatments cannot regenerate damaged cardiac tissue, leading to complications.
- Cardiac tissue regeneration requires complex functional integration (vascularization, contraction, conduction).
Purpose of the Study:
- To review advancements in engineered heart tissues (EHTs) for cardiac repair.
- To explore strategies for integrating key cardiac functions into EHTs.
- To highlight the importance of multifunctional approaches for EHT development.
Main Methods:
- Review of current literature on EHT development.
- Analysis of strategies for mimicking cardiac contraction, conduction, and vascularization.
- Evaluation of scaffold design, cellularization, and molecular release in EHTs.
Main Results:
- Simple EHTs struggle with maturation and in vivo integration.
- Complex, multifunctional EHT designs are essential for functionality.
- Integrating contraction, conduction, and vascularization mimics improves EHT design.
Conclusions:
- Multifunctional approaches are key to developing clinically applicable EHTs.
- Further investigation into integrated EHT designs is warranted.
- Advanced EHTs offer potential for treating heart damage and disease.
Abstract:
Cardiovascular diseases are the number one killer in the world.1,2 Currently, there are no clinical treatments to regenerate damaged cardiac tissue, leaving patients to develop further life-threatening cardiac complications. Cardiac tissue has multiple functional demands including vascularization, contraction, and conduction that require many synergic components to properly work. Most of these functions are a direct result of the cardiac tissue structure and composition, and, for this reason, tissue engineering strongly proposed to develop substitute engineered heart tissues (EHTs). EHTs usually have combined pluripotent stem cells and supporting scaffolds with the final aim to repair or replace the damaged native tissue. However, as simple as this idea is, indeed, it resulted, after many attempts in the field, to be very challenging. Without design complexity, EHTs remain unable to mature fully and integrate into surrounding heart tissue resulting in minimal in vivo effects.3 Lately, there has been a growing body of evidence that a complex, multifunctional approach through implementing scaffold designs, cellularization, and molecular release appears to be essential in the development of a functional cardiac EHTs.4-6 This review covers the advancements in EHTs developments focusing on how to integrate contraction, conduction, and vascularization mimics and how combinations have resulted in improved designs thus warranting further investigation to develop a clinically applicable treatment.
