CD80 expression on B-CLL cells after CD40L transduction.

CD80 expression was assessed in samples derived from patients 3, 6, and 7 after infection with AAV/CD40L (black bars) in comparison to uninfected control CLL cells derived from the same patient (striped bars). Expression of CD80 was also detected after coincubation with specific anti–murine CD40L mAb (gray bars).