MicroRNA-145 regulates osteoblastic differentiation by targeting the transcription factor Cbfb.
FEBS Lett
; 589(21): 3302-8, 2015 Oct 24.
Article
en En
| MEDLINE
| ID: mdl-26450370
ABSTRACT
Osteoblastic differentiation is regulated by various factors, including hormones and transcription factors. Runt-related transcription factor 2 (Runx2) is an essential player in osteoblastogenesis and transactivates its molecular target by creating a protein complex with its hetero-dimeric partner core binding factor beta (Cbfb). However, the molecular regulation of Cbfb expression remains unknown. Here, we identified miR-145 as a crucial regulator of Cbfb expression. The expression of miR-145 increased during osteoblastogenesis, indicating that miR-145 works as an inhibitor of osteoblastogenesis. Stable expression of miR-145 decreased endogenous Cbfb expression and inhibited osteoblastogenesis, in cooperation with miR-34c. Furthermore, miR-145 decreased bone regeneration in vivo. Our results indicate that miR-145 physiologically regulates osteoblast differentiation and bone formation via Cbfb expression by forming a regulatory microRNA network.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Osteoblastos
/
MicroARNs
/
Subunidad beta del Factor de Unión al Sitio Principal
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Año:
2015
Tipo del documento:
Article