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Open Access Publications from the University of California

Expansion of Luminal Progenitor Cells in the Aging Mouse and Human Prostate

  • Author(s): Crowell, Preston D
  • Fox, Jonathan J
  • Hashimoto, Takao
  • Diaz, Johnny A
  • Navarro, Héctor I
  • Henry, Gervaise H
  • Feldmar, Blake A
  • Lowe, Matthew G
  • Garcia, Alejandro J
  • Wu, Ye E
  • Sajed, Dipti P
  • Strand, Douglas W
  • Goldstein, Andrew S
  • et al.

© 2019 The Author(s) Aging is associated with loss of tissue mass and a decline in adult stem cell function in many tissues. In contrast, aging in the prostate is associated with growth-related diseases including benign prostatic hyperplasia (BPH). Surprisingly, the effects of aging on prostate epithelial cells have not been established. Here we find that organoid-forming progenitor activity of mouse prostate basal and luminal cells is maintained with age. This is caused by an age-related expansion of progenitor-like luminal cells that share features with human prostate luminal progenitor cells. The increase in luminal progenitor cells may contribute to greater risk for growth-related disease in the aging prostate. Importantly, we demonstrate expansion of human luminal progenitor cells in BPH. In summary, we define a Trop2+ luminal progenitor subset and identify an age-related shift in the luminal compartment of the mouse and human prostate epithelium. Aging is a significant risk factor for BPH and prostate cancer, but how aging increases disease risk in the prostate remains poorly defined. Crowell et al. show that progenitor-enriched luminal cells are expanded with aging in the mouse and human prostate, and may contribute to BPH.

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