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Current Status of Tissue Engineering Heart Valve.
Toshiharu Shinoka1, Hideki Miyachi2
1Department of Cardiothoracic Surgery, Nationwide Children's Hospital, Columbus, OH, USA toshiharu.shinoka@nationwidechildrens.org.
World Journal for Pediatric & Congenital Heart Surgery
|November 12, 2016
Summary
Tissue-engineered heart valves (TEHVs) offer a promising alternative to traditional prostheses by aiming for native-like tissue remodeling. Further research into TEHV remodeling mechanisms and clinical outcomes is crucial for successful translation.
Area of Science:
- Regenerative Medicine
- Biomaterials Science
- Cardiovascular Surgery
Background:
- Surgically implantable heart valve prostheses improve cardiovascular disease outcomes but have limitations like infection risk and lack of growth.
- Tissue-engineered heart valves (TEHVs) are designed to overcome these drawbacks, offering biocompatibility, durability, and native tissue remodeling.
- Despite advancements, TEHVs have not yet achieved widespread clinical application.
Purpose of the Study:
- To review the history and current state of valvular tissue engineering.
- To highlight the potential of TEHVs in cardiovascular medicine.
- To identify key areas for future research and clinical translation.
Main Methods:
- Review of historical developments in regenerative medicine and valvular tissue engineering.
- Analysis of the core components of tissue-engineered constructs: scaffolds, cells, and remodeling processes.
- Discussion of challenges and future directions for TEHV development.
Main Results:
- TEHVs utilize scaffold materials, seeded cells, and remodeling processes (cellular, biochemical, mechanical) to create functional valve tissue.
- Significant progress has been made in the last decade, yet clinical translation remains a challenge.
- Elucidating TEHV remodeling mechanisms and evaluating translational outcomes are essential for clinical success.
Conclusions:
- Tissue engineering represents a significant breakthrough with immense promise for reconstructive cardiovascular surgery.
- Further research focusing on understanding TEHV remodeling and rigorous translational outcome evaluations are necessary.
- The ideal TEHV should be implantable, biocompatible, non-thrombogenic, durable, degradable, and capable of remodeling into native-like tissue.
