NFKB1 and Miyoshi myopathy: Because we have previously found that co-culture with MM BMSCs can activate NF-κB in the RPMI8226 MM cell line and a few primary MM samples in a manner that is largely resistant to bortezomib [33], we wanted to know (i) how variable this response is among BMSCs derived from different MM patients, and (ii) whether BMSCs derived from normal marrow possess similar NF-κB-inducing activities.