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Wnt/?-Catenin-Responsive Cells in Prostatic Development and Regeneration.


ABSTRACT: The precise role of Wnt/?-catenin signaling during prostatic development and tumorigenesis is unclear. Axin2 is a direct transcriptional target of ?-catenin. Recent studies have shown that Axin2-expressing cells have stem/progenitor cell properties in a variety of mouse tissues. Here, we genetically labeled Axin2-expressing cells at various time points and tracked their cellular behavior at different developmental and mature stages. We found that prostatic Axin2-expressing cells mainly express luminal epithelial cell markers and are able to expand luminal cell lineages during prostatic development and maturation. They can also survive androgen withdrawal and regenerate prostatic luminal epithelial cells following androgen replacement. Deletion of ?-catenin or expression of stabilized ?-catenin in these Axin2-expressing cells results in abnormal development or oncogenic transformation, respectively. Our study uncovers a critical role of Wnt/?-catenin-responsive cells in prostatic development and regeneration, and that dysregulation of Wnt/?-catenin signaling in these cells contributes to prostatic developmental defects and tumorigenesis.

SUBMITTER: Lee SH 

PROVIDER: S-EPMC4618081 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature

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Wnt/β-Catenin-Responsive Cells in Prostatic Development and Regeneration.

Lee Suk Hyung SH   Johnson Daniel T DT   Luong Richard R   Yu Eun Jeong EJ   Cunha Gerald R GR   Nusse Roel R   Sun Zijie Z  

Stem cells (Dayton, Ohio) 20150729 11


The precise role of Wnt/β-catenin signaling during prostatic development and tumorigenesis is unclear. Axin2 is a direct transcriptional target of β-catenin. Recent studies have shown that Axin2-expressing cells have stem/progenitor cell properties in a variety of mouse tissues. Here, we genetically labeled Axin2-expressing cells at various time points and tracked their cellular behavior at different developmental and mature stages. We found that prostatic Axin2-expressing cells mainly express l  ...[more]

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