Regulation of tumor cell plasticity by the androgen receptor in prostate cancer

Jennifer L Bishop1, Alastair Davies1, Kirsi Ketola1

  • 1The Vancouver Prostate Centre2660 Oak Street, Vancouver, British Columbia, Canada V6H-3Z6Department of Urologic SciencesUniversity of British Columbia, Vancouver, British Columbia, Canada The Vancouver Prostate Centre2660 Oak Street, Vancouver, British Columbia, Canada V6H-3Z6Department of Urologic SciencesUniversity of British Columbia, Vancouver, British Columbia, Canada.

Insights

Prostate cancer (PCa) progression is driven by cellular plasticity, where cells adapt to androgen-deprivation therapies. Targeting this adaptability offers new strategies to combat aggressive PCa.

Area of Science:

  • Oncology
  • Cancer Biology
  • Endocrinology

Background:

  • Prostate cancer (PCa) is a leading cause of cancer-related deaths in men.
  • Hormonal therapies targeting androgen receptor (AR) signaling are standard PCa treatment.
  • AR signaling is crucial for PCa development and progression.

Purpose of the Study:

  • To review the cellular plasticity induced by androgen deprivation in prostate cancer.
  • To examine how AR signaling regulates cancer stem-like cells, epithelial-mesenchymal/myeloid plasticity, and neuroendocrine transdifferentiation.
  • To explore novel therapeutic strategies targeting therapy-induced cellular plasticity in aggressive PCa.

Main Methods:

  • Review of existing scientific literature on prostate cancer cellular plasticity.
  • Analysis of AR's role in regulating adaptive cell phenotypes under androgen deprivation.
  • Examination of therapeutic approaches targeting AR-regulated cellular plasticity.

Main Results:

  • Androgen-deprivation therapies induce heterogeneous cell populations in PCa.
  • Emergence of cancer stem-like cells, epithelial-mesenchymal/myeloid plasticity, and neuroendocrine transdifferentiation are key adaptive phenotypes.
  • These phenotypes are regulated by the androgen receptor (AR) and associated with aggressive disease.

Conclusions:

  • Cellular plasticity is a critical mechanism driving treatment resistance and progression in advanced prostate cancer.
  • Targeting AR-mediated cellular plasticity presents a promising therapeutic avenue.
  • Developing novel strategies to counteract these adaptive phenotypes could improve outcomes for patients with aggressive PCa.

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