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Does the Mouse Mammary Gland Arise from Unipotent or Multipotent Mammary Stem/Progenitor Cells?

  • Gilbert H. Smith
  • Daniel Medina
Article
  • 229 Downloads

Abstract

The presence of long-lived lineage restricted progenitor and multipotent progenitor cells in adult mouse mammary gland for cancer development is compelling. Mammary cancers are phenotypically diverse This might be explained by transformation of long-lived, lineage-limited progenitor subpopulations. Mammary multipotent epithelial stem cells and their environmental niches must be considered, since their niche(s), once empty might be occupied by lineage-limited progenitors that are proximal. The existence of premalignant mammary populationst that manifest characteristics of lineage limitation argues strongly for this proposition.

Keywords

mammary stem/progenitor cell lineage-tracing mouse 

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Copyright information

© This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2018

Authors and Affiliations

  1. 1.Mammary Stem Cell Biology, BRL,CCR, NCI, NIHBethesdaUSA
  2. 2.Molecular and Cellular BiologyBaylor College of MedicineHoustonUSA

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