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Updated: Jul 16, 2026

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
07:25

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer

Published on: March 6, 2018

Modulation of liver X receptor signaling as novel therapy for prostate cancer

Chih-Pin Chuu1, John M Kokontis, Richard A Hiipakka

  • 1The Ben May Department for Cancer Research, The University of Chicago, 929 East 57th Street, CIS W325F, Chicago, IL 60637, USA.

Journal of Biomedical Science
|March 21, 2007
PubMed

Insights

Liver X receptor (LXR) agonists show promise in cancer therapy by inhibiting cancer cell proliferation and tumor growth. Phytosterols, acting as LXR agonists, also exhibit anticancer effects, suggesting LXR signaling as a therapeutic target.

Area of Science:

  • Molecular biology
  • Oncology
  • Endocrinology

Background:

  • Liver X receptors (LXRs) regulate key metabolic pathways including cholesterol, fatty acid, and glucose homeostasis.
  • LXR agonists have demonstrated efficacy in preclinical models of atherosclerosis, diabetes, and Alzheimer's disease.

Purpose of the Study:

  • To investigate the potential of LXR agonists as a therapeutic strategy for prostate and other cancers.
  • To explore the role of phytosterols as LXR agonists in cancer treatment.

Main Methods:

  • In vitro studies on prostate and breast cancer cell proliferation.
  • In vivo studies using mouse models with prostate tumor xenografts.
  • Analysis of cell cycle regulation (G1 arrest, Skp2, p27Kip) and gene expression (ABCA1).

Main Results:

  • LXR agonists suppressed cancer cell proliferation and prostate tumor xenograft growth in mice.
  • LXR agonists induced G1 cell cycle arrest by modulating Skp2 and p27Kip levels.
  • Phytosterols, such as beta-sitosterol and campesterol, demonstrated antiproliferative effects on cancer cells, potentially via LXR activation.
  • LXR agonist treatment delayed the progression of androgen-dependent prostate tumors towards androgen-independency.

Conclusions:

  • LXR signaling represents a promising therapeutic target for prostate and other cancers.
  • Phytosterols may exert anticancer effects through LXR pathway activation.
  • Further research into LXR agonists and phytosterols could lead to novel cancer therapies.

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