Abstract
Mechano-active scaffolds were fabricated from very elastic poly(lactide-co-carprolactone) by a gel-pressing method. The scaffolds were seeded with bone marrow stromal cells and the continuous compressive deformation was applied to cell-polymer constructs in the chondrogenic media. Then, they were implanted in nude mice subcutaneously to evaluate for the effect of dynamic compression for regeneration of cartilage. From the biochemical analyses, chondrogenic differentiation was sustained and enhanced significantly and chondral extracellular matrix was increased through mechanical stimulation. Histological analyses showed that implants stimulated mechanically formed mature and well-developed cartilaginous tissue, as evidenced by bone marrow derived chondrocytes within lacunae. Consequently, the periodic application of dynamic compression can encourage bone marrow stromal cells to differentiation to chondrogenic lineage and to maintain their phenotypes.
| Original language | English |
|---|---|
| Pages (from-to) | 409-412 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 342-343 |
| DOIs | |
| Publication status | Published - 2007 |
Keywords
- Bioreactor in compressive mode
- Bone marrow stromal cells
- Cartilage tissue engineering
- Elastic poly-(I-lactide-co-ε-caprolactone) scaffold
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering