Figure 2. Inhibitory potential of Tregs in a T cell stimulation assay. T cells were stimulated with CD3 and CD28 antibodies and Tregs of 3- and 10-week old rats were added in a co-culture experiment. Division of cells was traced with CFSE and ratio of divided to undivided cells was determined. Treg of both cohorts showed inhibitory potential (*p<0.01). Between the cohorts, no significant difference was observed (p=0.141).