Early thymic progenitors (ETPs)

Marker Expression

  • CD4
    Expression: -
    Required markerRequired
  • CD25 (IL-2RA)
    Expression: -
    Citations:
    Required markerRequired
  • KIT (CD117)
    Expression: +++
    Citations:
    Required markerRequired
  • CD8a
    Expression: -
    Required markerRequired
  • CD1a
    Expression: -
    Human only
    Suggested markerSuggested
  • CD44
    Expression: +
    Analysis strategy: CD44+CD25- thymocytes are a heterogeneous population, not only ETPs
    Citations:

Cell/subset Information

ETPs are the earliest stage of thymic T cell development. They migrate to the thymus from the bone marrow.