Molecular and Cellular Biochemistry

, Volume 390, Issue 1–2, pp 69–74 | Cite as

miR-143 suppresses osteogenic differentiation by targeting Osterix

Article

Abstract

Osterix (Osx) is an essential transcription factor for osteoblast differentiation and bone formation. However, the knowledge of the regulation of Osx expression is poor. MicroRNAs (miRNAs), a class of small non-coding RNAs, play critical roles in numerous biological processes, including the proliferation, differentiation, and survival of cells and organisms. Herein, we aimed to explore the effect of miR-143 on Osx expression and osteogenic differentiation. miR-143, which was suppressor of the osteogenic differentiation of MC3T3-E1 cells, had decreased levels of expression during osteogenic differentiation. Moreover, Osx was identified to be a direct target of miR-143. Inhibition of Osx performed similar effect with miR-143 on osteogenic differentiation, while overexpression of Osx could partially reverse the suppressive effect of miR-143. Collectively, these data indicate that miR-143 is a novel regulator of Osx, and it might play an essential role in the regulation of osteogenic differentiation.

Keywords

miR-143 Osteogenesis Differentiation Osterix 

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Enqi Li
    • 1
  • Jinli Zhang
    • 1
  • Tianxiang Yuan
    • 1
  • Baotong Ma
    • 1
  1. 1.Department of Orthopaedic TraumaTianJin HospitalTianjinChina

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