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Challenges and Strategies for Endothelializing Decellularized Small-Diameter Tissue-Engineered Vessel Grafts
Heng Ding1,2, Xiaojie Hou3, Zhen Gao4
1Department of Cardiovascular Surgery, The Affiliated Hospital, Southwest Medical University, Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Key Laboratory of cardiovascular remodeling and dysfunction, Luzhou, Sichuan, 646000, China.
Advanced Healthcare Materials
|March 11, 2024
Summary
Decellularized small-diameter tissue-engineered vessel grafts (SD-TEVGs) show promise for treating vascular diseases. Enhancing endothelialization is key to overcoming thrombosis and calcification for clinical use.
Area of Science:
- Biomedical Engineering
- Regenerative Medicine
- Cardiovascular Research
Background:
- Vascular diseases cause ischemic necrosis, requiring vascular grafts for blood supply restoration.
- Small vessel grafts for coronary artery bypass are clinically unavailable.
- Decellularized small-diameter tissue-engineered vessel grafts (SD-TEVGs) offer potential but face challenges like thrombosis and calcification due to incomplete endothelialization.
Purpose of the Study:
- To review preclinical studies on decellularized SD-TEVGs.
- To highlight strategies for enhancing endothelialization of these grafts.
- To analyze methods and address shortcomings for future commercial viability.
Main Methods:
- Review of preclinical studies on decellularized small-diameter tissue-engineered vessel grafts.
- Analysis of various endothelialization enhancement strategies.
- Evaluation of advantages, disadvantages, and potential shortcomings of different methods.
Main Results:
- Incomplete endothelialization of decellularized SD-TEVGs leads to post-implantation complications.
- Various strategies are being investigated to accelerate and improve endothelialization.
- Preclinical data guides the development of more effective vascular graft treatments.
Conclusions:
- Enhancing endothelialization is crucial for the clinical success of decellularized SD-TEVGs.
- Further research and method refinement are needed to overcome implantation challenges.
- This review contributes to advancing decellularized SD-TEVGs towards commercialization.
