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Isolation, Culture, and Differentiation of Bone Marrow Stromal Cells and Osteoclast Progenitors from Mice
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KLF14 inhibits osteogenic differentiation of human bone marrow mesenchymal stem cells by downregulating WNT3A

Junquan Weng1, Jiahua Wu2, Weixuan Chen1

  • 1Department of Stomatology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University Guangdong, P. R. China.

American Journal of Translational Research
|September 11, 2020
PubMed

Insights

Krüppel-like factor 14 (KLF14) inhibits osteogenic differentiation in human bone marrow mesenchymal stem cells (hMSCs). Reducing KLF14 promotes bone development by influencing WNT3A signaling, offering a potential therapeutic target.

Area of Science:

  • Molecular Biology
  • Stem Cell Biology
  • Biochemistry

Background:

  • Krüppel-like factor 14 (KLF14) is part of a transcription factor family regulating gene expression.
  • The specific role of KLF14 in human bone marrow mesenchymal stem cell (hMSC) osteogenic differentiation remains unexplored.

Purpose of the Study:

  • To investigate the function and molecular mechanism of KLF14 during hMSC osteogenic differentiation in vitro.
  • To elucidate KLF14's impact on the WNT signaling pathway and cell cycle progression.

Main Methods:

  • Quantitative analysis of KLF14 expression in hMSCs.
  • Inhibition of KLF14 expression to assess effects on osteogenic differentiation.
  • Analysis of KLF14 interaction with the WNT3A promoter.
  • Assessment of WNT3A expression and downstream gene targets.
  • Cell cycle analysis.

Main Results:

  • KLF14 is highly expressed in hMSCs and its expression decreases during osteogenic differentiation.
  • Inhibition of KLF14 enhances hMSC osteogenic differentiation.
  • KLF14 directly interacts with the WNT3A promoter, suppressing WNT3A expression and downstream osteogenesis-related genes.
  • KLF14-mediated WNT3A downregulation leads to cell cycle arrest.

Conclusions:

  • KLF14 acts as a negative regulator of osteogenic differentiation in hMSCs.
  • KLF14 influences osteogenesis by modulating the WNT3A signaling pathway and cell cycle.
  • KLF14 presents a novel therapeutic target for bone development disorders.
Keywords:
KLF14WNT3AhMSCosteogenic differentiation

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