MicroRNA-92a-1-5p influences osteogenic differentiation of MC3T3-E1 cells by regulating β-catenin

J Bone Miner Metab. 2019 Mar;37(2):264-272. doi: 10.1007/s00774-018-0935-y. Epub 2018 Jul 17.

Abstract

Osteoblastic differentiation is a complex process that is critical for proper bone formation. An increasing number of studies have suggested that microRNAs (miRNAs) are pivotal regulators in various physiological and pathological processes, including osteogenesis. Here, we discuss the influence of miRNA-92a-1-5p on osteogenic differentiation. We found that miR-92a-1-5p was obviously downregulated during osteogenic differentiation of MC3T3-E1 cells. Gain-of-function and loss-of-function experiments revealed that miR-92a-1-5p was a negative regulator of osteogenic differentiation. Experimental validation demonstrated that β-catenin, which acts as a positive regulator of osteogenic differentiation, was negatively regulated by miR-92a1-5p. The findings of this study provide new insights into the possibility of miR-92a1-5p being a potential therapeutic target in the management of bone regeneration-related diseases.

Keywords: Osteoblastic differentiation; miR-92A-1-5P; β-Catenin.

MeSH terms

  • Animals
  • Bone Morphogenetic Protein 2 / pharmacology
  • Calcification, Physiologic / drug effects
  • Cell Differentiation / drug effects
  • Cell Differentiation / genetics*
  • Cell Line
  • Down-Regulation / drug effects
  • Down-Regulation / genetics
  • Gene Expression Regulation* / drug effects
  • Mice
  • MicroRNAs / genetics
  • MicroRNAs / metabolism*
  • Osteogenesis / drug effects
  • Osteogenesis / genetics*
  • Transcription, Genetic / drug effects
  • beta Catenin / genetics*
  • beta Catenin / metabolism*

Substances

  • Bone Morphogenetic Protein 2
  • MicroRNAs
  • Mirn92 microRNA, mouse
  • beta Catenin