Dioscin inhibits human endometrial carcinoma proliferation via G0/G1 cell cycle arrest and mitochondrial-dependent

Xiao-Li Li1, Run-Hui Ma2, Zhi-Jing Ni2

  • 1School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China.

Insights

Dioscin exhibits anti-cancer properties by inhibiting endometrial cancer cell proliferation and inducing apoptosis through both mitochondrial and death receptor pathways. This natural compound shows promise for endometrial cancer prevention and treatment.

Area of Science:

  • Pharmacology and Molecular Biology
  • Cancer Research
  • Cell Biology

Background:

  • Endometrial cancer remains a significant health concern.
  • Natural compounds are increasingly investigated for therapeutic potential.
  • Dioscin, a saponin, has shown various biological activities.

Purpose of the Study:

  • To investigate the anti-cancer effects of dioscin on human endometrial cancer Ishikawa cells.
  • To elucidate the molecular mechanisms underlying dioscin's action.
  • To assess dioscin's potential in endometrial cancer prevention and treatment.

Main Methods:

  • Cell proliferation assays to determine the half-maximal inhibitory concentration (IC50).
  • Cell cycle analysis to identify cell cycle arrest.
  • Apoptosis assays including mitochondrial pathway and death receptor pathway analysis.
  • Western blotting to assess protein expression levels.

Main Results:

  • Dioscin significantly suppressed Ishikawa cell proliferation with an IC50 of 2.37 μM.
  • Dioscin induced G0/G1 cell cycle arrest by up-regulating p16, p21, p27 and down-regulating Cyclin A/D/E, CDK2/4/6.
  • Dioscin promoted apoptosis via the mitochondrial pathway (Bcl family proteins, ROS, Caspase 9/3, mitochondrial membrane permeability) and the death receptor pathway (Fas, TNF-R1, Caspase 8).

Conclusions:

  • Dioscin demonstrates significant anti-cancer effects against human endometrial cancer cells.
  • Dioscin induces apoptosis through both intrinsic (mitochondrial) and extrinsic (death receptor) pathways.
  • Dioscin holds potential as a therapeutic agent for endometrial cancer prevention and treatment.

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