ELECTRON-MICROSCOPIC EXAMINATION OF WHITE CELL REDUCTION BY 4 WHITE CELL-REDUCTION FILTERS

被引:37
|
作者
STENEKER, I [1 ]
VANLUYN, MJA [1 ]
VANWACHEM, PB [1 ]
BIEWENGA, J [1 ]
机构
[1] UNIV GRONINGEN,DEPT HISTOL & CELL BIOL,BIOMAT SECT,9700 AB GRONINGEN,NETHERLANDS
关键词
D O I
10.1046/j.1537-2995.1992.32592327720.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The mechanisms of white cell (WBC) reduction in 16-hour-old CPDA-1 red cell (RBC) concentrates by filtration on a column filter and on three different flatbed filters were studied by electron microscopy, with special emphasis on cell-to-cell interaction, cell damage, and interaction of blood cells with the material. Generally, lymphocytes were removed by mechanical sieving and monocytes by adherence and mechanical sieving. Granulocyte depletion occurred by mechanical sieving, direct adhesion to the fibers, and indirect adhesion to activated and spread platelets. In the column filter, most granulocytes were captured by adhesion. In the coarse layers of two of the flatbed filters, indirect adhesion was most prominent, whereas direct adhesion was most prominent in the other flatbed filter. For the most part, granulocytes were captured by direct adhesion in the fine layers, but in one flatbed filter, capture apparently occurred by mechanical sieving. The results of this study suggest that the efficiency and the mechanism of WBC reduction depend on the physicochemical characteristics of the non-woven materials in the filters as well as the cellular composition of the RBC concentrates.
引用
收藏
页码:450 / 457
页数:8
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