Related Experiment Video
Updated: Aug 11, 2025
09:35
Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect
Published on: September 11, 2015
9.8K
Cell-Laden Scaffolds for Vascular-Innervated Bone Regeneration
Chen Qin1,2, Hongjian Zhang1,2, Lei Chen1,2
1State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China.
Advanced Healthcare Materials
|February 7, 2023
Summary
This study introduces "vascular-innervated" scaffolds that promote simultaneous blood vessel and nerve growth for enhanced bone regeneration. These advanced biomaterials support cell survival and tissue repair.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Regenerative Medicine
Background:
- Simultaneous vascularization and innervation are crucial for regenerating complex tissues like bone.
- Traditional cell-free scaffolds often fail to adequately support these processes.
- A novel approach is needed to achieve functional tissue regeneration.
Purpose of the Study:
- To develop a "pre-angiogenic" cell-laden scaffold for enhanced bone regeneration.
- To investigate the scaffold's ability to promote simultaneous blood vessel and nerve ingrowth.
- To define and demonstrate "vascular-innervated" bone regeneration.
Main Methods:
- Fabrication of cell-laden scaffolds using silicate bioceramics and bioactive inks.
- In vitro and in vivo assessment of scaffold angiogenic capabilities and cell survival.
- Evaluation of scaffold-induced neurogenic and osteogenic differentiation.
- Analysis of synergistic effects of bioactive ions and vascular cells.
Main Results:
- Cell-laden scaffolds supported long-term cell survival and growth for three weeks.
- Scaffolds demonstrated durable angiogenic capability both in vitro and in vivo.
- Scaffolds induced neurogenic differentiation of neural cells and osteogenic differentiation of mesenchymal stem cells.
- Enhanced bone regeneration with both vascularization and innervation was achieved.
Conclusions:
- The developed "pre-angiogenic" scaffolds facilitate "vascular-innervated" bone regeneration.
- The synergistic effects of bioactive ions and vascular cells are key to the observed regeneration.
- "Vascular-innervated scaffolds" represent a promising future direction for complex tissue regeneration.
