Restricted expression of p55 interleukin 2 receptor (CD25) on normal T cells

Clin Immunol Immunopathol. 1990 Jan;54(1):126-33. doi: 10.1016/0090-1229(90)90012-f.


Using a phycoerythrin-conjugated antibody to the p55 chain of the interleukin 2 receptor, normal blood lymphocytes were found to be on average 30% positive for this marker. Two-thirds of these cells are in the CD4 subset and most are within the CD45RA negative fraction associated with activated or memory T cells.

MeSH terms

  • CD4 Antigens / analysis
  • Cell Separation
  • Fluorescent Antibody Technique
  • Humans
  • Phenotype
  • Receptors, Interleukin-2 / analysis*
  • T-Lymphocytes / immunology*


  • CD4 Antigens
  • Receptors, Interleukin-2