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Express of LFA-1 and ICAM-1 in hyperleukocytic AML
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- Author:
- No author available
- Journal Title:
- JOURNAL OF LEUKEMIA & LYMPHOMA
- Issue:
- 3
- DOI:
- 10.3760/cma.j.issn.1009-9921.2006.03.005
- Key Word:
- 高白细胞急性髓性白血病;内皮细胞黏附;LFA-1;ICAM-1
Abstract： 目的研究高白细胞急性髓性白血病(AML)患者白血病细胞与内皮细胞的黏附状况以及LFA-1和ICAM-1在高白细胞AML中的表达,探讨AML患者高白细胞的发生机制.方法观察高白细胞AML患者白血病细胞与内皮细胞的黏附作用;检测高白细胞AML骨髓单个核细胞(BMMNC)培养上清对正常白细胞与内皮细胞黏附的影响;流式细胞仪检测高白细胞AML患者BMMNC表面LFA-1的表达以及高白细胞AML患者BMMNC培养上清作用24 h后内皮细胞ICAM-1的表达.结果与非高白细胞AML组相比,高白细胞AML患者白血病细胞与内皮细胞的黏附率明显增加;BMMNC表面LFA-1的表达显著增加;BMMNC培养上清作用后内皮细胞ICAM-1的表达明显增高及与正常白细胞黏附明显增加.结论高白细胞AML细胞分泌较多的LFA-1,同时刺激内皮细胞分泌ICAM-1增加,促使白血病细胞与内皮细胞的黏附增加,增高的LFA-1与ICAM-1共同作用可能在高白细胞白血病的发生中起一定作用.
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