Proliferation and cytogenetic analysis of hairy cell leukemia upon stimulation via the CD40 antigen.

Proliferation and cytogenetic analysis of hairy cell leukemia upon stimulation via the CD40 antigen.
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CD40 抗原刺激后毛细胞白血病的增殖和细胞遗传学分析。

DOI:
10.1182/blood.v84.9.3134.bloodjournal8493134
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发表时间:
1994
期刊:
影响因子:
20.3
通讯作者:
J. Falkenburg
J. Falkenburg
中科院分区:
医学1区
文献类型:
--
作者:
H. Kluin;Geoffrey C. Beverstock;P. Mollevanger;Hans W Wessels;E. Hoogendoorn;Roelof Willemze;J. Falkenburg

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本文应用CD_(40)系统对43例毛细胞白血病(HCL)进行了体外增殖检测。在该培养系统中,用白介素-4(IL-4)和抗CD 40单克隆抗体(MoAb)刺激细胞,所述抗体以可溶形式加入或使用Fc γ RII转染的小鼠成纤维细胞通过其Fc部分交联。增殖诱导和确认3 H-胸苷掺入14例,中期的存在下,42例。3 H-胸苷掺入表现出异质性模式:抗CD 40的交联在8例病例中产生了最高的增殖;在11例病例中,单独使用抗CD 40 MoAbs(无交联)刺激也导致增殖; IL-4的添加进一步增强了5例病例的3 H-胸苷掺入,但抑制了其他5例病例的这种现象。CD 40系统在获得细胞遗传学数据方面被证明是非常有效的。测试的43名患者中,成功率为42名,我们发现8例(19%)克隆异常,另外7例非克隆异常,涉及一到两个异常中期分裂相。在结构和数量上,最常涉及异常核型的染色体是5、7和14号染色体。通过对培养细胞进行荧光激活细胞分选分析,并通过中期扩散的免疫表型分析,可以排除T细胞生长并确认HCL谱系。通过CD 40抗原的刺激是生长毛细胞白血病细胞的极好工具。
Using the CD40 system, in vitro proliferation of hairy cell leukemia (HCL) was examined in 43 patients. In this culture system, cells were stimulated by interleukin-4 (IL-4) and anti-CD40 monoclonal antibodies (MoAbs) that were added in soluble form or were cross-linked via their Fc part using Fc gamma RII-transfected mouse fibroblast cells. Proliferation was induced and confirmed by 3H-thymidine incorporation in 14 cases and by the presence of metaphases in 42 cases. 3H-thymidine incorporation showed a heterogeneous pattern: cross-linking of anti-CD40 gave the highest proliferation in 8 cases; in 11 cases, stimulation with anti-CD40 MoAbs alone, without cross-linking also resulted in proliferation; the addition of IL-4 further enhanced 3H-thymidine incorporation in 5 cases, but suppressed this phenomenon in 5 other cases. The CD40 system proved to be very effective in obtaining cytogenetic data. With a success rate of 42 of 43 patients tested, we found clonal abnormalities in 8 cases (19%) and nonclonal abnormalities with involvement of one or two abnormal metaphases in another 7 cases. The chromosomes most frequently involved in the abnormal karyotypes, both structurally and numerically, were chromosomes 5, 7, and 14. By fluorescence-activated cell-sorting analysis of the cultured cells, and by immunophenotypic analysis of metaphase spreads, T-cell growth could be excluded and the HCL-lineage confirmed. Stimulation via the CD40 antigen is an excellent tool for growing hairy cell leukemia cells.
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DOI: --
发表时间: 1985
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影响因子: --
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发表时间: 1986
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DOI: --
发表时间: 1993
期刊: Leukemia
影响因子: 11.4
作者:
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发表时间: 1988-12-01
影响因子: 11.1
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