Platelet-derived growth factor BB gene-released scaffolds: biosynthesis and characterization
Yufeng Zhang1, Yihui Ma2, Chengtie Wu3
1State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China. zyf@whu.edu.cn.
Journal of Tissue Engineering and Regenerative Medicine
|October 17, 2013
Summary
This study developed a novel scaffold using gene therapy to recruit mesenchymal stem cells (MSCs) for tissue regeneration. The engineered scaffold successfully enhanced tissue repair by promoting stem cell homing to defect sites.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Gene Therapy
Background:
- Tissue engineering relies on cells, inductive agents, and scaffolds.
- Conventional scaffolds often fail to recruit stem cells for regeneration.
- Mesenchymal stem cells (MSCs) are crucial for tissue repair.
Purpose of the Study:
- To fabricate a novel scaffold for tissue regeneration.
- To enhance stem cell recruitment using gene therapy for platelet-derived growth factor-B (PDGF-B).
- To investigate the controlled release and bioactivity of PDGF-B adenovirus within the scaffold.
Main Methods:
- Fabrication of mesoporous bioglass-silk fibrin scaffolds.
- Incorporation of PDGF-B adenovirus (AdPDGF) into scaffolds.
- In vitro and in vivo testing of scaffold-mediated MSC recruitment and tissue regeneration in mice.
Main Results:
- Scaffolds demonstrated controlled release of AdPDGF for up to 3 weeks.
- Significant increase in MSC recruitment observed both in vitro and in vivo.
- Enhanced osseous tissue regeneration in calvarial defects in mice.
Conclusions:
- Engineered scaffolds effectively recruit MSCs via PDGF-B gene therapy.
- This approach promotes tissue regeneration by leveraging host stem cell potential.
- The developed scaffold shows promise for regenerative medicine applications.
