TY - JOUR
T1 - Flow cytometric differentiation of abnormal and normal plasma cells in the bone marrow in patients with multiple myeloma and its precursor diseases
AU - Tembhare, Prashant R.
AU - Yuan, Constance M.
AU - Venzon, David
AU - Braylan, Raul
AU - Korde, Neha
AU - Manasanch, Elisabet
AU - Zuchlinsky, Diamond
AU - Calvo, Katherine
AU - Kurlander, Roger
AU - Bhutani, Manisha
AU - Tageja, Nishant
AU - Maric, Irina
AU - Mulquin, Marcia
AU - Roschewski, Mark
AU - Kwok, Mary
AU - Liewehr, David
AU - Landgren, Ola
AU - Stetler-Stevenson, Maryalice
N1 - Funding Information:
This research was funded by the intramural program of the National Cancer Institute , National Institutes of Health . The authors wish to acknowledge the technical assistance of Catharine McCoy, Gregory Jasper and Linda Weaver.
PY - 2014/3
Y1 - 2014/3
N2 - Flow cytometric (FC) enumeration of abnormal plasma cells (APCs) for diagnosis and prognostication of plasma cell dyscrasias (PCD) is challenging. We studied antigen expression in normal plasma cells (NPC) (N= 34) and APC in a series of unselected PCD (N= 59). NPC subpopulations often demonstrated CD19(-), CD20(+), CD45(-) or dim and CD56(+), an immunophenotype observed in PCD. However abnormal CD81 was only observed in APCs (APC detection sensitivity 95%; specificity 100%). We evaluated differences in antigen expression patterns among MGUS (N= 14), SMM ( N= 35) and MM (N= 10), finding the combination of CD45 and CD56 helpful in differentiating MGUS from SMM and MM (p= 0.0002).
AB - Flow cytometric (FC) enumeration of abnormal plasma cells (APCs) for diagnosis and prognostication of plasma cell dyscrasias (PCD) is challenging. We studied antigen expression in normal plasma cells (NPC) (N= 34) and APC in a series of unselected PCD (N= 59). NPC subpopulations often demonstrated CD19(-), CD20(+), CD45(-) or dim and CD56(+), an immunophenotype observed in PCD. However abnormal CD81 was only observed in APCs (APC detection sensitivity 95%; specificity 100%). We evaluated differences in antigen expression patterns among MGUS (N= 14), SMM ( N= 35) and MM (N= 10), finding the combination of CD45 and CD56 helpful in differentiating MGUS from SMM and MM (p= 0.0002).
KW - CD81
KW - Monoclonal gammopathy of uncertain significance
KW - Multiple myeloma
KW - Normal plasma cell immunophenotype
KW - Smoldering multiple myeloma
UR - http://www.scopus.com/inward/record.url?scp=84894273737&partnerID=8YFLogxK
U2 - 10.1016/j.leukres.2013.12.007
DO - 10.1016/j.leukres.2013.12.007
M3 - Article
C2 - 24462038
AN - SCOPUS:84894273737
SN - 0145-2126
VL - 38
SP - 371
EP - 376
JO - Leukemia Research
JF - Leukemia Research
IS - 3
ER -