B cell hyperactivity in systemic lupus erythematosus: selectively enhanced responsiveness to a high molecular weight B cell growth factor

B cell hyperactivity in systemic lupus erythematosus: selectively enhanced responsiveness to a high molecular weight B cell growth factor
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系统性红斑狼疮中的 B 细胞过度活跃:选择性增强对高分子量 B 细胞生长因子的反应

DOI:
10.1002/eji.1830161011
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发表时间:
1986
影响因子:
5.4
通讯作者:
P. Galanaud
P. Galanaud
中科院分区:
医学3区
文献类型:
--
作者:
J. Delfraissy;C. Wallon;A. Vazquez;B. Dugas;J. Dormont;P. Galanaud

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为了解系统性红斑狼疮(SLE)患者B细胞过度活跃的特征,我们研究了14例SLE患者和对照组的B细胞活化的早期事件。我们测量了三种白细胞介素(IL)制剂(20-kDa B细胞生长因子,BCGF,重组IL 2和50-kDa BCGF)在不存在和存在抗μ抗体(Ab)的情况下诱导的B细胞增殖。在不存在抗μ Ab的情况下,SLE B细胞对50 kDa BCGF表现出显著增强的增殖反应,而在存在第一信号的情况下反应正常。在14名受试患者中的11名中观察到这种活动过度的模式,而在对照患者中不存在。相比之下,SLE B细胞对其他两种检测的IL和单独抗μ Ab的反应与正常B细胞相似。应该指出的是,SLE B细胞对重组IL 2的反应正常,而来自相同患者的T细胞对这种IL的反应降低。SLE B细胞对50-kDa BCGF的选择性增强的反应性表明,在这种疾病中导致B细胞过度活跃的事件影响了B细胞活化的早期阶段。
To characterize B cell hyperactivity in systemic lupus erythematosus (SLE) patients we studied the early events of B cell activation in 14 patients and controls. We measured B cell proliferation induced by three interleukin (IL) preparations (20‐kDa B cell growth factor, BCGF, recombinant IL2 and 50‐kDa BCGF) in the absence and in the presence of an anti‐μ antibody (Ab). SLE B cells exhibited a markedly enhanced proliferative response to the 50‐kDa BCGF in the absence of an anti‐μ Ab, while responding normally in the presence of a first signal. This pattern of hyperactivity was observed in 11 out of 14 patients tested, and was absent in control patients. In contrast, SLE B cells behaved like normal B cells for the response to the other two IL tested, and to the anti‐μ Ab alone. It should be pointed out that SLE B cells responded normally to recombinant IL2 whereas T cells from the same patients exhibited a decreased response to this IL. The selectively enhanced responsiveness of SLE B cells to the 50‐kDa BCGF suggests that the events leading to B cell hyperactivity in this disease affect the early stages of B cell activation.
DOI: --
发表时间: 1983
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Kuritani,T;Cooper,MD
通讯作者: Cooper,MD
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影响因子: 4.4
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发表时间: 1985
期刊: Journal of immunology (Baltimore, Md. : 1950)
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发表时间: 1985
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影响因子: --
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发表时间: 1985
期刊: Journal of immunology (Baltimore, Md. : 1950)
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