Proximal location of mouse prostate epithelial stem cells

نویسندگان

  • Akira Tsujimura
  • Yasuhiro Koikawa
  • Sarah Salm
  • Tetsuya Takao
  • Sandra Coetzee
  • David Moscatelli
  • Ellen Shapiro
  • Herbert Lepor
  • Tung-Tien Sun
  • E. Lynette Wilson
چکیده

Stem cells are believed to regulate normal prostatic homeostasis and to play a role in the etiology of prostate cancer and benign prostatic hyperplasia. We show here that the proximal region of mouse prostatic ducts is enriched in a subpopulation of epithelial cells that exhibit three important attributes of epithelial stem cells: they are slow cycling, possess a high in vitro proliferative potential, and can reconstitute highly branched glandular ductal structures in collagen gels. We propose a model of prostatic homeostasis in which mouse prostatic epithelial stem cells are concentrated in the proximal region of prostatic ducts while the transit-amplifying cells occupy the distal region of the ducts. This model can account for many biological differences between cells of the proximal and distal regions, and has implications for prostatic disease formation.

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عنوان ژورنال:
  • The Journal of Cell Biology

دوره 157  شماره 

صفحات  -

تاریخ انتشار 2002