血细胞分离机制备的浓缩血小板与洗涤血小板的体外实验对照

目的　对比研究体外采集洗涤对血小板功能与形态的影响。方法　采用血细胞分析仪、经典玻球法、经典比浊法及流式细胞技术检测CS 30 0 0 plus血细胞分离机制备的单个供者浓缩血小板和洗涤血小板 ,采集前后及相互间血小板的有关形态学指标、粘附聚集性、血小板活化依赖性颗粒外膜蛋白 (GMP 14 0 )及血小板膜GPⅡb/Ⅲa复合物的表达。结果　两组制品的血小板PDW、PCT、MPV均比采集前显著降低 ,但组间比较差异无显著性意义 ;两组血小板的粘附聚集率、CD62p+ 及CD41a+ CD62p+ 阳性表达率采集前后及组间比较 ,差异均无显著性意义。两组制品的血小板CD41a+ 阳性表达率显著高于采集前 ,但组间比较差异无显著性意义。结论　血小板在体外的采集过程中可能受到轻微激活损伤 ;采用CS 30 0 0 plus血细胞分离机制备的浓缩血小板和洗涤血小板质量可靠、临床适用性强 ;用流式细胞技术检测血小板CD41a+ 、CD62p+ ,评价体外血小板功能有较好的参考价值

Comparing plasma-depleted platelet concentrates with Regular PCs Produced from CS-3000

Obejective To assess the influence of apheresis and wash on platelet function and morphology.Methods To determine the count,size,distribution,agglutination,aggregation,GMP 140 & GPⅡb/Ⅲa of the platelet from the peripheral blood prior to apheresis and aphersed or washed platelets produced by CS 3000 plus.Results Both apheresed and washed platelets showed decreased PDW,PCT & MPV,but there were no statistical difference between groups.There were no difference in platelet adhesion,aggregation,CD 62p +,CD 41a +,and CD 62p +expression.Both apheresed and washed platelets showed increased CD 41a + expression,but there was no difference between apheresed and washed platelets.Conclusion Flow cytometry measurement of GMP 140 & GPⅡb/Ⅲa may be used for in vitro platelet function assessment.Although apherisis can induce mild platelet activation,platelets apheresed or washed by CS 3000 plus have reliable quality and can be used in a variety of clinical conditions.