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Tissue Engineering: Construction of a Multicellular 3D Scaffold for the Delivery of Layered Cell Sheets
Published on: October 3, 2014
Engineering dextran-based scaffolds for drug delivery and tissue repair
1Center for Craniofacial Regeneration, Columbia University Medical Center, College of Dental Medicine, 630 West 168th Street, New York, NY 10032, USA. gsun@columbia.edu
Nanomedicine (London, England)
|December 6, 2012
Summary
Dextran polymers can be engineered into functional scaffolds for controlled release and tissue regeneration. These biodegradable materials show promise for therapeutic neovascularization and wound repair applications.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Polymer Chemistry
Background:
- Dextran's reactive hydroxyl groups allow versatile functionalization into various structures (spherical, tubular, 3D networks).
- Dextran-based scaffolds are biodegradable and suitable carriers for biomolecules, attracting interest for controlled release and tissue engineering.
- Reconstructing in vitro microenvironments for large-scale tissue regeneration remains a significant challenge.
Purpose of the Study:
- To review recent advances in dextran-based polymers and scaffolds for controlled release and tissue engineering.
- To highlight the development of dextran-based hydrogels with tailored properties for therapeutic applications.
- To discuss the potential of these hydrogels for neovascularization and wound repair.
Main Methods:
- Modification of dextran with functional groups to create diverse structural scaffolds.
- Development of dextran-based hydrogels with precisely controlled structural properties.
- Encapsulation of angiogenic growth factors within dextran hydrogels.
Main Results:
- Dextran can be functionalized to form various scaffold architectures.
- Dextran-based hydrogels can be engineered for controlled release of therapeutic factors.
- These hydrogels demonstrate potential for promoting neovascularization and aiding wound repair.
Conclusions:
- Dextran-based scaffolds offer a promising platform for controlled release and regenerative medicine.
- Tailored dextran hydrogels with encapsulated growth factors are effective for therapeutic neovascularization.
- Further development of dextran materials holds significant potential for wound healing and tissue regeneration.
