Culture of endodermal stem/progenitor cells of the mouse tongue

  • Xiaoyan Luo
  • Tadashi Okubo
  • Scott Randell
  • Brigid L. M. Hogan
Article

Abstract

The tongue represents a very accessible source of tissue-specific epithelial stem cells of endodermal origin. However, little is known about the properties of these cells and the mechanisms regulating their proliferation and differentiation. Foxa2, an endodermal marker, is expressed throughout the tongue epithelium during embryonic development but becomes confined to a minority of basal cells and some taste bud sensory cells in the adult tongue. Using a previously described line of transgenic mice in which enhanced green fluorescent protein (eGFP) is expressed under the control of a human keratin 5 promoter region (Krt5-eGFP), we have isolated a subpopulation of cells in the basal epithelial layer of the mouse tongue with a high efficiency of generating holoclones of undifferentiated cells in culture with a feeder layer. Krt5-GFPhi cells can both self renew and give rise to differentiated stratified keratinized epithelial cells when cultured on an air–liquid interface.

Keywords

Tongue Endodermal basal stem cell Krt5-eGFP Colony forming efficiency Differentiation 

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Copyright information

© The Society for In Vitro Biology 2008

Authors and Affiliations

  • Xiaoyan Luo
    • 1
  • Tadashi Okubo
    • 2
  • Scott Randell
    • 3
  • Brigid L. M. Hogan
    • 1
  1. 1.Department of Cell BiologyDuke University Medical CenterDurhamUSA
  2. 2.Center for Integrative BioscienceNational Institute of Natural SciencesOkazakiJapan
  3. 3.Cystic Fibrosis/Pulmonary Research and Treatment CenterUniversity of North CarolinaChapel HillUSA

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