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Murine Prostate Micro-dissection and Surgical Castration
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Wnt/β-Catenin-Responsive Cells in Prostatic Development and Regeneration.

Suk Hyung Lee1, Daniel T Johnson1, Richard Luong2

  • 1Department of Urology, Stanford University School of Medicine, Stanford, California, USA.

Stem Cells (Dayton, Ohio)
|July 30, 2015
PubMed
Summary

Wnt/β-catenin signaling in Axin2-expressing cells is crucial for prostate development and regeneration. Dysregulation of this pathway in these cells can lead to developmental defects and prostate cancer.

Keywords:
Axin2Prostatic progenitor cellsWnt signalingβ-Catenin

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Area of Science:

  • Cell Biology
  • Developmental Biology
  • Cancer Biology

Background:

  • The role of Wnt/β-catenin signaling in prostate development and cancer is not fully understood.
  • Axin2-expressing cells possess stem/progenitor properties in various tissues.
  • Axin2 is a direct target of β-catenin, indicating its involvement in this pathway.

Purpose of the Study:

  • To investigate the function of Wnt/β-catenin-responsive cells in prostate development and regeneration.
  • To determine the role of Axin2-expressing cells in prostatic epithelial cell lineage expansion and survival.
  • To explore the impact of Wnt/β-catenin signaling dysregulation in Axin2-expressing cells on prostate development and tumorigenesis.

Main Methods:

  • Genetic labeling of Axin2-expressing cells in mice.
  • Tracking cellular behavior during prostatic development and maturation.
  • Analyzing the effects of β-catenin deletion or stabilization in Axin2-expressing cells.

Main Results:

  • Prostatic Axin2-expressing cells primarily express luminal epithelial markers.
  • These cells expand luminal cell lineages during prostate development and maturation.
  • Axin2-expressing cells survive androgen withdrawal and regenerate luminal epithelium upon androgen replacement.
  • Altered Wnt/β-catenin signaling in these cells leads to abnormal development or oncogenic transformation.

Conclusions:

  • Wnt/β-catenin-responsive cells play a critical role in prostate development and regeneration.
  • Dysregulation of Wnt/β-catenin signaling in Axin2-expressing cells contributes to prostate developmental defects and cancer.