Figure 1.
Cytokine gene expression profiles in adult chronic ITP patients. Expression (mean ± SEM) of the cytokines studied at the mRNA level in control subjects, patients in active disease phase (PLT count < 100 × 109/L [< 100 000/mm3]), and patients in hematologic remission by peripheral blood mononuclear cells ex vivo and after in vitro stimulation with PMA and ionomycin (P/I). Asterisks denote significance using unpaired 2-tail t test (*P < .05; **P < .01). Comparisons among subject groups (controls, patients with active disease, and patients in remission) were made under the same experimental conditions (ex vivo PBMCs or stimulated PBMCs) for each cytokine separately.