The in vivo formation of cementum-like tissue by bovine cementoblasts / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 70-72, 2003.
Artículo
en Chino
| WPRIM
| ID: wpr-347301
ABSTRACT
<p><b>OBJECTIVE</b>To test the bovine cementoblasts (CBs) cementum-forming ability in vivo.</p><p><b>METHODS</b>Root fragments of newborn bovine freshly extracted mandibular incisor were cultured routinely and 4th-5th passages of CBs were harvested. CBs were then cultured in the medium supplemented with 50 mg/L alpha-ascorbic acid and 10 mmol/l beta-glycerolphosphate to form a thick layer as tissue engineering scaffold for cementum formation. Collagen membrane was used as control scaffold. 2 x 10(6) cells were attached to the CBs-made carrier as well as collagen membrane scaffolds and transplanted subcutaneously into immunodeficient mice. Transplants were harvested at 7th week. Histological sections were stained with HE, alizarin red S and van Kossa methods as well as monoclonal Ab against bovine cementum attachment protein (CAP).</p><p><b>RESULTS</b>CBs-made scaffold supported more cementum-like tissue (CLT) formation than collagen-made scaffold. The CLT formed on CBs scaffold was partly calcified with embedded cells. Uncalcified cementoid-like material could be seen on the surface and was encircled by cubical CB-like cells. The CLT was also positive to CAP and van Kossa staining.</p><p><b>CONCLUSIONS</b>These results suggest that the bovine CBs can form cementum-like tissue. The cell-made carrier is a better scaffold than collagen membrane.</p>
Texto completo:
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Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Sialoglicoproteínas
/
Trasplante
/
Trasplante Heterólogo
/
Inmunohistoquímica
/
Moléculas de Adhesión Celular
/
Osteocalcina
/
Osteonectina
/
Células Cultivadas
/
Química
/
Trasplante Óseo
Límite:
Animales
Idioma:
Chino
Revista:
Chinese Journal of Stomatology
Año:
2003
Tipo del documento:
Artículo
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