SDC1 and infection: The infection rate in CD138+ myeloma patient-derived plasma cells was also comparable to myeloma cells (Fig. 2b) and was significantly greater than in the HD CD138- bone marrow mononuclear cell (BMMC) population, additionally Ad-GFP had no significant effect on viability in these populations after 48 h, evidencing that initial viral infection/load alone does not influence viability (Supplementary Fig. 3f).