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

Cell Rep. 2019 Aug 6;28(6):1499-1510.e6. doi: 10.1016/j.celrep.2019.07.007.

Abstract

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.

Keywords: aging; basal; epithelium; luminal; organoid; progenitor.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Aging / pathology*
  • Animals
  • Antigens, Neoplasm / metabolism
  • Cell Adhesion Molecules / metabolism
  • Cell Proliferation
  • Humans
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Middle Aged
  • Organoids / pathology
  • Prostate / pathology*
  • Prostatic Hyperplasia / pathology*
  • Stem Cells / pathology*
  • Young Adult

Substances

  • Antigens, Neoplasm
  • Cell Adhesion Molecules
  • TROP2 protein, mouse