Determination of sMUC1 levels in MM patients BM plasma and relationship to tumor burden.

sMUC1 levels were determined in BM plasma samples taken from 60 MM patients with active disease (AD), 11 MM patients with minimal residual disease (MRD), and 21 HDs. Mean BM sMUC1 levels were significantly elevated in MM patients with AD (31.76 U/mL) compared with MM patients with MRD (16.16 U/mL; P < .001) and HDs (9.68 U/mL;P < .001).