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Published on: May 1, 2015
[Immunophenotypic characteristics of multiple myeloma cells]
Jin-Lan Li1, Yan-Rong Liu, Yan Chang
1Institute of Hematology, Peking University, Beijing 100044, China.
To investigate the immunophenotypic characteristics of multiple myeloma (MM) cells, 20 bone marrow samples from patients with multiple myeloma were analyzed by flow cytometry with three-color direct immunofluorescence staining. Results showed that all of myeloma cells expressed bright CD38, dim or negative CD45 and negative CD19. Most of the cells were CD56(+) and a small portions were ckappa(+) or clambda(+), or CD20(+). The phenotypes of normal plasmocyte, CD19(+) and CD56(-), except CD56(-) in one-third samples, were not appeared in all detected samples. It was concluded that the surface marker analysis of myeloma cells is a useful tool for diagnosis and further evaluating prognosis of multiple myeloma.
To investigate the immunophenotypic characteristics of multiple myeloma (MM) cells, 20 bone marrow samples from patients with multiple myeloma were analyzed by flow cytometry with three-color direct immunofluorescence staining. Results showed that all of myeloma cells expressed bright CD38, dim or negative CD45 and negative CD19. Most of the cells were CD56(+) and a small portions were ckappa(+) or clambda(+), or CD20(+). The phenotypes of normal plasmocyte, CD19(+) and CD56(-), except CD56(-) in one-third samples, were not appeared in all detected samples. It was concluded that the surface marker analysis of myeloma cells is a useful tool for diagnosis and further evaluating prognosis of multiple myeloma.
