RRC ID 61819
Author Fukuda T, Ochi H, Sunamura S, Haiden A, Bando W, Inose H, Okawa A, Asou Y, Takeda S.
Title MicroRNA-145 regulates osteoblastic differentiation by targeting the transcription factor Cbfb.
Journal FEBS Lett
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.
Volume 589(21)
Pages 3302-8
Published 2015-10-24
DOI 10.1016/j.febslet.2015.09.024
PII S0014-5793(15)00873-X
PMID 26450370
MeSH 3T3 Cells Animals Bone Regeneration Cell Differentiation Cell Line Core Binding Factor beta Subunit / genetics* Core Binding Factor beta Subunit / metabolism Gene Expression Regulation HEK293 Cells Humans Mice MicroRNAs / metabolism* Osteoblasts / physiology* Promoter Regions, Genetic
IF 3.057
Resource
Human and Animal Cells UCB408E6E7TERT-33(RCB2080) GE1(RCB1709)