Panel A: CD8
+ T cell associated TRAIL and its receptor expression profile. TRAIL and its receptor expression profile of CD8+ T cells gathered from 20 RA patients and 12 healthy controls are shown as a scatter dot plot. Error bars represent mean (±) SEM. Panel B shows representative FC for TRAIL and its receptor expression on CD8+ T cells (upper panels show healthy control, lower panels are obtained from an RA patient). Panel C shows the relative increase in TRAIL and its receptors on CD8+ T cells on RA cells (vs control).