A study of injectable autogenous tissue-engineered bone / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 393-395, 2003.
Article
Dans Chinois
| WPRIM
| ID: wpr-263475
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the utilization of carrier for delivering osteoblasts and creating autogenous bone tissue in ectopic site of animal via injection.</p><p><b>METHODS</b>Bone marrow cells harvested from iliac bone of New Zealand rabbits were induced to differentiate into marrow stromal osteoblasts. The osteoblasts were mixed with 1.5% alginate sodium solution to generate osteoblasts/alginate composites with final cellular density of 4 x 10(9)/L. Calcium chloride was used as cross-linking agent to gel aqueous alginate solution. The marrow stromal osteoblasts/alginate composites were injected into the dorsal subcutaneous tissue of rabbits with autogenous cells transplantation. The samples were examined with X-ray and histological analysis.</p><p><b>RESULTS</b>Four, eight and twelve weeks after injection, the hard knobbles were easily palpated under the dorsal skin of animals. On X-ray photograph the samples showed calcified image with more density than surrounding soft tissue, new bone formation was observed in the osteoblasts/alginate composites in histological analysis. The osteogenesis was in association with regenerated hematopoietic bone marrow.</p><p><b>CONCLUSIONS</b>These results demonstrate that new bone tissue could be created through the injection of alginate sodium treated with autogenous marrow stromal osteoblasts.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Ostéoblastes
/
Ostéogenèse
/
Transplantation
/
Acide glucuronique
/
Ingénierie tissulaire
/
Alginates
/
Acides hexuroniques
Limites du sujet:
Animaux
langue:
Chinois
Texte intégral:
Chinese Journal of Stomatology
Année:
2003
Type:
Article
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