Figure 2: DLEC stimulation with PHA. CD8-α (A) and MHC II-β (B) mRNA levels were normalised to rRNA 18 levels in the same samples after real-time PCR quantitative analysis of DLEC stimulated with PBS (control) and with 1 µg/ml PHA for 4 and 24 h and calibrated against the non-stimulated 0 h control. Data were expressed as indicated for Fig. 1.