Fig. 1.
Lymphocyte count, natural killer (NK) cell number, and NK cell activity before treatment initiation as determined using flow cytometry (cell number) and a 51Cr release assay (activity). a The mean lymphocyte count in healthy volunteers, peripheral T-cell lymphoma (PTCL) patients, and adult T-cell leukemia–lymphoma (ATL) patients were 1580, 991, and 11,618/μL, respectively. b The NK cell number in healthy volunteers, PTCL patients, and ATL patients, the corresponding mean values were 262, 224, and 166/μL, respectively. c The NK cell activity values in healthy volunteers, PTCL patients, and ATL patients, the corresponding mean values were 8.8, 10.4, and 1.4 %, respectively