Fig. 7.
Immunophenotype of a rapidly expanded pp65495-503-specific CTL line shows virtually exclusively CD8+ cells with some cells triple staining for CD3, CD8, and CD56.
The CTLs are CD45RO+ and CD45RAβ indicative of memory phenotype. The cell line is activated (HLA-DR+ and CD62Lβ or L-selectin negative) and expresses CD49d (VLA-4), which is associated with the ability of cells to transgress across epithelium.