Figure 3.

Expression of CD38 in multiple patient samples. (A) The mean expression of CD38 in the untreated samples was 3±1.8% (n=17). Following treatment with CD38 virus a mean of 87±8.5% (n=17) of CLL cells expressed the CD38 antigen. A mean of 8±5.8% CD38 expression (n=7) was observed in samples treated with control GFP virus. (B) Morphology of untreated and lentivirus treated CLL cells following 48 h incubation. Pictures were taken using a Zeiss Axio microscope equipped with a digital camera following Giemsa staining (×100 magnification).