Figure 3: Dose-response curve for peptide L1EDGPKFL8 and the Zn2+-peptide complex. The cells were stimulated in the presence of different co-stimulatory ligands: LPS (0.5 μg/mL) for THP-1 cells, PHA (1 μg/mL) for Jurkat cells, and Con A (2 μg/mL) for newborn rat thymocytes. The EC50 values (half stimulatory concentrations) are indicated. Each curve is representative of 3 independent experiments.