Distribution of myeloma plasma cells in peripheral blood and bone marrow correlates with CD56 expression

被引:71
作者
Rawstron, A [1 ]
Barrans, S [1 ]
Blythe, D [1 ]
Davies, F [1 ]
English, A [1 ]
Pratt, G [1 ]
Child, A [1 ]
Morgan, G [1 ]
Jack, A [1 ]
机构
[1] Gen Infirm, Haematol Malignancy Diagnost Serv, Dept Haematol, Leeds LS1 3EX, W Yorkshire, England
关键词
multiple myeloma; plasma cell immunophenotype; distribution; peripheral blood involvement;
D O I
10.1046/j.1365-2141.1999.01134.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
There is a wide variation in the degree of marrow and blood involvement between patients with multiple myeloma. Both of these parameters are known to be highly significant prognostic factors, and the differences between patients may be due to variable expression of adhesion molecules. To test this we used three-colour now cytometry to study three adhesion molecules associated with myeloma, namely CD38, CD56 and CD138. The level of expression of these molecules was compared with the distribution of myeloma plasma cells in bone marrow (n=59) and peripheral blood (n=26) in patients at presentation or relapse, The extent of marrow infiltration on the trephine biopsy correlated inversely with CD56 expression (Mann-Whitney U Test, P=0.022); there was no difference in CD38 or in CD138 expression. CD56 expression also correlated inversely with the number of circulating plasma cells (linear regression, R-2=0.4268. slope=-0.58, P=0.0003). Peripheral blood plasma cell numbers correlated weakly with bone marrow plasmacytosis, and inversely with CD38 expression, The level of CD56 expression by neoplastic plasma cells was assessed in 37 patients over a median of 11 months (range 6-25). There was no significant change in expression (Wilcoxon Signed Rank, P=0.6271). We conclude that plasma cell CD56 expression is constant over the course of the disease; unlike CD138 expression, it is significantly linked to the degree of both bone marrow and peripheral blood involvement.
引用
收藏
页码:138 / 143
页数:6
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