Figure 1.
Blimp-1 and XBP-1 expression. Global RT-PCR products from plasma cells and memory B cells were analyzed by RT-PCR for expression of the transcription factors XBP-1 and Blimp-1. Results are shown for three myeloma patients and three healthy individuals, with 100 sorted cells per tube in each case. Lanes 1–3, oncogene-negative (healthy) memory B cells; lanes 4–6, oncogene-positive (myeloma) memory B cells; lanes 7–9, MM plasma cells; lanes 10–12, healthy plasma cells.