activated CD4-positive, alpha-beta T cell activated CD4-positive, alpha-beta T cell, human cell activated CD4-positive, alpha-beta T-lymphocyte, human activated CD4+ T cell This cell type is compatible with the HIPC Lyoplate markers for 'activated CD4+ T cell', but includes via logical inference from its parent additional markers known to be expressed on activated CD4+ T cells. The inclusion of HLA-DRA in the definition restricts this definition to human activated CD4+ T cells, as activated mouse T cells do not express MHC class II. activated CD4-positive, alpha-beta T-cell, human activated CD4-positive, alpha-beta T lymphocyte, human A recently activated CD4-positive, alpha-beta T cell with the phenotype HLA-DRA-positive, CD38-positive, CD69-positive, CD62L-negative, CD127-negative, and CD25-positive.