Figure 1

Standard curves for recombinant cytokines. Data were generated by combining an eight-fold dilution of the various standards (IL-1β, IL-6, IL-10, IL-12 (p40), IL-12 (p70). The fluorescence intensity (FI) was measured by using the Bio-plex system (Multiplex Suspension Cytokine Array; Bio-Rad, Hercules, CA, USA). Standard curves were quantified and plotted with Bio-Plex Manager software by a five-parameter regression formula.