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Updated: Mar 2, 2026

Proliferation and Differentiation of Murine Myeloid Precursor 32D/G-CSF-R Cells
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MiR-696 Regulates C2C12 Cell Proliferation and Differentiation by Targeting CNTFRα.

Han Wang1, Lei Shi1, Tingting Liang1

  • 1Institute of Swine Science, Nanjing Agricultural University, Nanjing, 210095, China.

International Journal of Biological Sciences
|May 23, 2017
PubMed
Summary

Micro-696 (muscle-related microRNA-696) is highly expressed in skeletal muscle. This study reveals miR-696 inhibits skeletal myoblast proliferation and differentiation by targeting CNTFRα.

Keywords:
CNTFRαMiR-696myoblast proliferation and differentiation.

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Area of Science:

  • Molecular Biology
  • Muscle Physiology
  • Biochemistry

Background:

  • Micro-696 (miR-696) is known for its role in skeletal muscle fatty acid oxidation and mitochondrial biogenesis.
  • The specific function of miR-696 in skeletal myoblast proliferation and differentiation remains largely unexplored.

Purpose of the Study:

  • To investigate the role of miR-696 in skeletal myoblast proliferation and differentiation.
  • To elucidate the molecular mechanism underlying miR-696's function in myogenesis.

Main Methods:

  • Quantitative real-time PCR to measure miR-696 and CNTFRα expression.
  • Overexpression and knockdown experiments in C2C12 myoblast cell line.
  • Western blot analysis to assess protein levels.
  • Luciferase reporter assay to confirm direct targeting of CNTFRα by miR-696.

Main Results:

  • miR-696 expression was high in skeletal muscle and decreased during C2C12 myoblast differentiation.
  • Overexpression of miR-696 inhibited C2C12 myoblast proliferation and myofiber formation.
  • Knockdown of miR-696 promoted proliferation and differentiation.
  • miR-696 directly targets and represses the expression of CNTFRα (ciliary neurotrophic factor receptor alpha).
  • Knockdown of CNTFRα suppressed C2C12 cell proliferation and differentiation.

Conclusions:

  • miR-696 negatively regulates skeletal myogenesis in C2C12 cells.
  • The inhibitory effect of miR-696 on myogenesis is mediated through the downregulation of CNTFRα.
  • This study reveals a novel regulatory pathway involving miR-696 and CNTFRα in skeletal muscle development.