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Geraniol inhibits prostate cancer growth by targeting cell cycle and apoptosis pathways

Su-Hwa Kim1, Hyun Cheol Bae, Eun-Jung Park

  • 1Department of Physiology, Seoul National University College of Medicine, Seoul 110-799, Republic of Korea.

Biochemical and Biophysical Research Communications
|March 5, 2011
PubMed

Insights

Geraniol, a natural compound, halts prostate cancer progression by inducing cell death and cell cycle arrest. Combining geraniol with docetaxel enhances its therapeutic effect against prostate cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Natural Products Chemistry

Background:

  • Prostate cancer progression involves evading cell cycle arrest and apoptosis, particularly under androgen-depleted conditions.
  • Understanding the molecular mechanisms of this evasion is crucial for developing effective treatments.

Purpose of the Study:

  • To investigate the effects of geraniol, a naturally occurring monoterpene, on prostate cancer cell cycle regulation and apoptosis.
  • To evaluate the potential of geraniol, alone and in combination with docetaxel, as a therapeutic strategy for prostate cancer.

Main Methods:

  • In vitro studies using PC-3 prostate cancer cells to assess cell cycle arrest and apoptosis.
  • In vivo studies using tumor grafted mice to evaluate geraniol's efficacy and mechanism of action.
  • Analysis of cell cycle regulators and Bcl-2 family protein expression.

Main Results:

  • Geraniol induced significant cell cycle arrest and apoptosis in PC-3 cells, both in vitro and in vivo.
  • Geraniol modulated the expression of key cell cycle regulators and Bcl-2 family proteins.
  • Combination therapy with sub-optimal doses of geraniol and docetaxel markedly suppressed prostate cancer growth in cell cultures and tumor xenografts.

Conclusions:

  • Geraniol demonstrates potential as an anti-cancer agent by overcoming resistance to cell cycle arrest and apoptosis in prostate cancer.
  • Combined geraniol and docetaxel therapy offers a promising strategy for more effective prostate cancer treatment.
  • These findings provide insights into the mechanisms of prostate cancer progression and suggest novel therapeutic avenues.

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