Hematopoiesis: Reconciling Historic Controversies about the Niche

Cell Stem Cell. 2017 May 4;20(5):590-592. doi: 10.1016/j.stem.2017.03.025.


The niche, as first conceptualized, was in conflict with the prevailing wisdom that stem cells have internal logic. The niche hypothesis has been indisputably confirmed. Yet, recent findings indicate little plasticity of epigenetically scripted hematopoietic stem/progenitors. Reconciling this conflict requires re-envisioning the niche as an enabler, not designer, of cell fate.

MeSH terms

  • Animals
  • Cell Differentiation / genetics
  • Cell Differentiation / physiology
  • Hematopoiesis / genetics
  • Hematopoiesis / physiology*
  • Hematopoietic Stem Cells / cytology*
  • Hematopoietic Stem Cells / metabolism
  • Mice
  • RNA, Messenger / genetics
  • Stem Cell Niche / genetics
  • Stem Cell Niche / physiology*


  • RNA, Messenger