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Daucosterol induces autophagic-dependent apoptosis in prostate cancer via JNK activation

Ping Gao1,2, Xiaopeng Huang2, Tingting Liao3

  • 1Department of Urology, Hospital of Chengdu University of Traditional Chinese Medicine.

Bioscience Trends
|April 5, 2019
PubMed

Insights

Daucosterol, a plant sterol, inhibits prostate cancer growth by triggering programmed cell death (apoptosis) dependent on cellular recycling (autophagy) and activating the JNK signaling pathway.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Plant sterols, or phytosterols, are recognized for their anti-cancer properties.
  • Prostate cancer remains a significant global health concern requiring novel therapeutic strategies.

Purpose of the Study:

  • To investigate the anti-cancer effects of daucosterol on prostate cancer progression.
  • To elucidate the molecular mechanisms underlying daucosterol's action in prostate cancer.

Main Methods:

  • Cell proliferation assays and cell cycle analysis were performed.
  • Apoptosis and autophagy were assessed using specific inhibitors and treatments.
  • The involvement of c-Jun N-terminal kinase (JNK) signaling was examined using specific inhibitors.

Main Results:

  • Daucosterol significantly inhibited prostate cancer cell proliferation and induced cell cycle arrest.
  • Daucosterol promoted both apoptosis and autophagy, with autophagy being essential for the apoptotic response.
  • Activation of JNK signaling was observed, and its inhibition blocked daucosterol-induced autophagy and apoptosis.

Conclusions:

  • Daucosterol exhibits anti-prostate cancer activity by inducing autophagic-dependent apoptosis.
  • The JNK signaling pathway plays a crucial role in mediating daucosterol's anti-cancer effects.
  • Daucosterol represents a potential therapeutic candidate for prostate cancer treatment.
Keywords:
JNKProstate cancerapoptosisautophagycell cycledaucosterol

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