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Rhizoma Dioscoreae extract protects against alveolar bone loss by regulating the cell cycle: A predictive study based

Zhi-Guo Zhang1, Chang-Heng Song1, Fang-Zhen Zhang1

  • 1Institute of Basic Theory, China Academy of Chinese Medical Sciences, Beijing 100700, P.R. China.

Molecular Medicine Reports
|April 29, 2016
PubMed

Insights

Rhizoma Dioscoreae extract (RDE) protects against bone loss in ovariectomized rats. It likely works by regulating cell cycle progression through key molecules like CDK1, impacting bone remodeling.

Area of Science:

  • Pharmacology
  • Molecular Biology
  • Bone Biology

Background:

  • Ovariectomized (OVX) rats experience alveolar bone loss.
  • Rhizoma Dioscoreae extract (RDE) shows protective effects against this bone loss.

Purpose of the Study:

  • To predict molecular pathways and targets regulated by RDE.
  • To analyze protein-protein interaction (PPI) networks based on gene expression data.

Main Methods:

  • Identified 383 differentially expressed genes (≥3-fold) in alveolar bone samples.
  • Constructed a PPI network and used MCODE for cluster detection.
  • Performed Gene Ontology (GO) and Ingenuity Pathway Analysis (IPA) for enrichment analysis.

Main Results:

  • Identified four molecular clusters (A-D) within the PPI network.
  • Cluster A was significantly enriched for cell cycle regulation pathways.
  • Cyclin-dependent kinase 1 (CDK1) was identified as a key molecule in cluster A.

Conclusions:

  • RDE's anti-osteopenic effect may involve delayed cell cycle progression.
  • Downregulation of CDK1 is a potential mechanism for RDE's protective action on alveolar bone.

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