(a) PBMCs from pruritic and non-pruritic advanced CTCL samples were stained with fluorophore-conjugated monoclonal antibodies against surface-bound CD3, CD8, CD26, CCR4 and intracellular IL-31 and further analyzed by flow cytometry. Representative plots show pre-gated cells on CD3+/CD8- (upper row) and CD3+/CD8-/CD26- (lower row).
(b) PBMCs from pruritic advanced stage CTCL samples were obtained before and after the first treatment with mogamulizumab. PBMCs were then stained with fluorophore-conjugated monoclonal antibodies against surface-bound CD3, CD8, CD26, CCR4 and intracellular IL-31 and further analyzed by flow cytometry. Representative plots show pre-gated cells on CD3+/CD8-.