Abstract
The plasminogen activator system consists of the serine protease urokinase plasminogen activator (uPA), two endogenous inhibitors of PAI-1 (plasminogen activator inhibitor-1) as well as the PAI-2 and uPA receptor (uPAR or CD87). The aim of this study was to determine the significance of flow cytometry and CD87, CD45 and CD56 expressions in the diagnosis, follow-up and prognosis of multiple myeloma (MM). Twenty-nine MM patients were included in the study. Bone marrow samples were used for flow cytometry. A panel of CD87, CD45, CD56, CD10, CD19, CD20, CD38, and CD138 was tested by flow cytometry. CD87 was negative in 8 (27.5%) cases, dim positive in 9 (31.1%) and bright positive in 12 (41.4%). CD87 expression was significantly higher in CD45 (-) cases. Flow cytometry has a significant role in the diagnosis and prognosis of MM. Further clinical studies including large numbers of patients are needed to determine the prognostic role of CD87 in MM.
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