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Genipin cross-linked decellularized tracheal tubular matrix for tracheal tissue engineering applications
Fei Sun1,2, Yuan Jiang2,3, Yanfei Xu2,3
1Department of Cardiothoracic Surgery, College of Clinical Medicine, Yangzhou University, Yangzhou, 225001, Jiangsu Province, China.
Scientific Reports
|April 16, 2016
Summary
Genipin cross-linking enhances decellularized airway scaffolds' mechanical strength and biocompatibility. This natural agent improves tracheal matrices without compromising pro-angiogenic properties or causing inflammation.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Regenerative Medicine
Background:
- Decellularization is a key strategy for creating biological scaffolds for organ reconstruction.
- Optimizing the mechanical and biological properties of decellularized matrices is crucial for successful tissue engineering.
Purpose of the Study:
- To investigate the effects of genipin cross-linking on the mechanical, pro-angiogenic, and in vivo biocompatibility properties of decellularized airway matrices.
- To evaluate genipin as a natural cross-linking agent for enhancing decellularized tracheal scaffolds.
Main Methods:
- New Zealand rabbit tracheae were decellularized.
- Decellularized tracheae were cross-linked using genipin, a naturally derived agent.
- Mechanical properties (secant modulus), in vivo angiogenesis (CAM assay), and inflammatory responses in xenograft models were assessed.
Main Results:
- Genipin cross-linking significantly increased the secant modulus of decellularized tracheal scaffolds compared to decellularized samples alone.
- Both decellularized and genipin-cross-linked tracheae demonstrated strong in vivo angiogenic responses.
- Genipin-cross-linked tracheae exhibited reduced inflammatory reactions and no increase in IgM or IgG levels in xenograft models.
Conclusions:
- Genipin treatment improves the mechanical integrity of decellularized airway matrices.
- Genipin cross-linking preserves the inherent pro-angiogenic potential of the decellularized scaffolds.
- Genipin offers a promising approach for enhancing the biocompatibility and mechanical properties of tissue-engineered airway constructs.
