Supplementary Figures 1. Analysis of eIF4E protein levels by western blotting of whole cell extracts from primary stromal cells, CD138- cells, primary myeloma cells (CD138+) and normal plasma cells. Supplementary Figures 2. CT shRNA, eIF4E shRNA, PCDH-GFP or PCDH-eIF4E U266 cells were analyzed by Annexin V binding/ PI staining for apoptotic cells.