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Tembhare PR, Yuan CM, Venzon D, Braylan R, Korde N, Manasanch E, Zuchlinsky D, Calvo K, Kurlander R, Bhutani M, Tageja N, Maric I, Mulquin M, Roschewski M, Kwok M, Liewehr D, Landgren O, Stetler-Stevenson M. Flow cytometric differentiation of abnormal and normal plasma cells in the bone marrow in patients with multiple myeloma and its precursor diseases. Leuk Res 2013; 38:371-6. [PMID: 24462038 DOI: 10.1016/j.leukres.2013.12.007] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 11/12/2013] [Accepted: 12/01/2013] [Indexed: 11/28/2022]
Abstract
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).
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Affiliation(s)
- Prashant R Tembhare
- Flow Cytometry Laboratory, Laboratory of Pathology, CCR, NCI, NIH, Bethesda, MD, USA
| | - Constance M Yuan
- Flow Cytometry Laboratory, Laboratory of Pathology, CCR, NCI, NIH, Bethesda, MD, USA
| | - David Venzon
- Biostatistics and Data Management Section, CCR, NCI, NIH, Bethesda, MD, USA
| | - Raul Braylan
- Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, MD, USA
| | - Neha Korde
- Medical Oncology Branch, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Elisabet Manasanch
- Medical Oncology Branch, National Cancer Institute, NIH, Bethesda, MD, USA
| | | | - Katherine Calvo
- Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, MD, USA
| | - Roger Kurlander
- Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, MD, USA
| | - Manisha Bhutani
- Metabolism Branch, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Nishant Tageja
- Metabolism Branch, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Irina Maric
- Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, MD, USA
| | - Marcia Mulquin
- Metabolism Branch, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Mark Roschewski
- Metabolism Branch, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Mary Kwok
- Medical Oncology Branch, National Cancer Institute, NIH, Bethesda, MD, USA
| | - David Liewehr
- Biostatistics and Data Management Section, CCR, NCI, NIH, Bethesda, MD, USA
| | - Ola Landgren
- Metabolism Branch, National Cancer Institute, NIH, Bethesda, MD, USA
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