TRAIL and its receptor (both death and decoy) expression profile on CD4
+ T cells. A scattered dot plot profile of TRAIL and its receptors is provided in Panel A. Solid circles indicate RA patients while dots represent control individuals. Error bars display mean (±) SEM. Representative flow cytometric analyses of a control individual (upper panels) and an RA patient (lower panels) are shown in Panel B, while Panel C shows the relative increase in TRAIL and its receptors on CD4+ T cells of RA patients compared to controls.