Fig. 1.
IL-10 suppression of SEB stimulation: SEB dose-response. PBMCs were added to 96-well plates at 3 × 105 cells/mL along with IL-10 at 10 U/mL or media only. After 2 days of incubation, media alone or SEB at varying concentrations was added and plates were further incubated for another 2 days. Proliferation was measured by [3H]thymidine incorporation. Different PBMC donors are represented in each experiment. Data are expressed as the mean CPM ± SD. Results were determined to be statistically significant by the Student’s t-test (P < .002). Numbers between curves indicate the percentage of suppression by IL-10.