Immunophenotypic Characterization and Quantification of Neoplastic Bone Marrow Plasma Cells by Multiparametric Flow Cytometry and Its Clinical Significance in Korean Myeloma Patients
Journal of Korean Medical Science
;
: 542-549, 2013.
Artículo
en Inglés
| WPRIM
| ID: wpr-71535
ABSTRACT
Multiparametric flow cytometry (MFC) allows discrimination between normal and neoplastic plasma cells (NeoPCs) within the bone marrow plasma cell (BMPC) compartment. This study sought to characterize immunophenotypes and quantitate the proportion of NeoPCs in BMPCs to diagnose plasma cell myeoma (PCM) and evaluate the prognostic impact of this method. We analyzed the MFC data of the bone marrow aspirates of 76 patients with PCM and 33 patients with reactive plasmacytosis. MFC analysis was performed using three combinations CD38/CD138/-/CD45; CD56/CD20/CD138/CD19; and CD27/CD28/CD138/CD117. The plasma cells of patients with reactive plasmacytosis demonstrated normal immunophenotypic patterns. Aberrant marker expression was observed in NeoPCs, with negative CD19 expression observed in 100% of cases, CD56+ in 73.7%, CD117+ in 15.2%, CD27- in 10.5%, CD20+ in 9.2%, and CD28+ in 1.3%. In PCM patients, more than 20% of NeoPCs/BMPCs were significantly associated with factors suggestive of poor clinical outcomes. Patients who were CD27- or CD56+/CD27-, demonstrated shorter overall survival than patients of other CD56/CD27 combinations. Our results support the clinical value of immunophenotyping and quantifying NeoPCs in PCM patients. This strategy could help to reveal poor prognostic categories and delineate surrogate markers for risk stratification in PCM patients.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Pronóstico
/
Células Madre Neoplásicas
/
Células de la Médula Ósea
/
Factores de Riesgo
/
Inmunofenotipificación
/
Miembro 7 de la Superfamilia de Receptores de Factores de Necrosis Tumoral
/
Antígeno CD56
/
Pueblo Asiatico
/
Estimación de Kaplan-Meier
/
República de Corea
Tipo de estudio:
Estudio de etiología
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Adulto
/
Anciano
/
Aged80
/
Femenino
/
Humanos
/
Masculino
País/Región como asunto:
Asia
Idioma:
Inglés
Revista:
Journal of Korean Medical Science
Año:
2013
Tipo del documento:
Artículo
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