Effects of TGF-ß1 on OPG/RANKL expression of cementoblasts and osteoblasts are similar without stress but different with mechanical compressive stress.
ScientificWorldJournal
; 2015: 718180, 2015.
Article
en En
| MEDLINE
| ID: mdl-25685846
ABSTRACT
INTRODUCTION:
This study aimed to explore the effects of TGF-ß1 on regulating activities of cementoblasts and osteoblasts with or without stress. MATERIAL ANDMETHODS:
Human recombinant TGF-ß1 was added with different doses. Immunohistochemical test of osteoprotegerin (OPG)/receptor activator of nuclear factor-kappaB ligand (RANKL) and Alizarin Red-S staining were conducted. Mechanical compressive stress was obtained by increasing the pressure of gaseous phase. OPG/RANKL expression was detected in both cells through quantitative real-time PCR.RESULTS:
Similar significant differences (P < 0.05) existed in OPG/RANKL change with increasing concentration of TGF-ß1 without mechanical stress for cementoblasts and osteoblasts. However, under 3 h stress, OPG increased and RANKL decreased significantly (P < 0.01) but with similar OPG/RANKL change. Moreover, under 24 h stress, OPG change exhibited no difference (P > 0.05), but RANKL decreased significantly (P < 0.01) at 10 and 100 ng/mL TGF-ß1 in cementoblasts. In osteoblasts, OPG increased significantly (P < 0.01) at 10 and 100 ng/mL, whereas RANKL decreased with statistical difference (P < 0.05) at 1 and 10 ng/mL.CONCLUSIONS:
The effects of TGF-ß1 on OPG/RANKL expression of cementoblasts and osteoblasts are similar even without mechanical stress. However, these effects are different under mechanical compressive stress.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Osteoblastos
/
Cemento Dental
/
Factor de Crecimiento Transformador beta1
/
Ligando RANK
/
Osteoprotegerina
Límite:
Animals
/
Humans
Idioma:
En
Revista:
ScientificWorldJournal
Asunto de la revista:
MEDICINA
Año:
2015
Tipo del documento:
Article
País de afiliación:
China