T cell receptor Vb5 and Vb17 clonal diversity in cerebrospinal fluid and peripheral blood lymphocytes of multiple sclerosis patients

T cell receptor Vb5 and Vb17 clonal diversity in cerebrospinal fluid and peripheral blood lymphocytes of multiple sclerosis patients
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多发性硬化症患者脑脊液和外周血淋巴细胞中T细胞受体Vb5和Vb17克隆多样性

DOI:
10.1177/135245859800400313
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发表时间:
1998
期刊:
Multiple Sclerosis
影响因子:
--
通讯作者:
R. Liblau
R. Liblau
中科院分区:
--
文献类型:
--
作者:
P. Lozeron;D. Chabas;B. Duprey;O. Lyon‐Caen;R. Liblau

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为了更好地表征MS中枢神经系统中发生的细胞免疫应答,我们研究了最近诊断为MS或其他神经系统疾病(OND)的HLA分型患者的血液和CSF T细胞受体(TCR)Vβ5和Vb 17库。使用基于RT-PCR的技术,我们利用配对血液-CSF样本上的Vβ5(8例MS患者和1例OND患者)或Vβ17(8例MS患者和6例OND患者)基因片段直接离体分析TCR β链的CDR 3大小。在全球范围内,Vβ5-Jβ和Vβ17-Jβ库分析显示,MS和OND患者CSF样本中的模式多样性低于相应的外周血淋巴细胞。然而,我们在MS患者的Vb 5 + T细胞内未检测到任何复发性克隆扩增,强调了基于Vβ5的免疫疗法在MS中的潜在限制。我们在三名MS患者的CSF中发现了使用相同的Vβ17-Jβ1.6组合的扩增的T细胞群,具有相同的CDR 3长度,而对照患者中没有。这些结果表明在MS中枢神经系统中表达该片段基因的T细胞的选择性扩增。
To better characterize the cellular immune response taking place in the MS central nervous system, we investigated the blood and CSF T cell receptor (TCR) Vβ5 and Vb17 repertoire in HLA-typed patients with recently diagnosed MS or other neurological diseases (OND). Using a RT-PCR based technique, we analysed directly ex vivo the CDR3 size of TCR β chains utilizing Vβ5 (eight patients with MS and one with OND) or Vβ17 (eight patients with MS and six with OND) gene segments on paired blood-CSF samples. Globally, the analysis of Vβ5-Jβ and Vβ17-Jβ repertoire showed a less diverse pattern in the CSF samples than in the corresponding peripheral blood lymphocytes both in MS and in OND patients. However, we did not detect any recurrent clonal expansion within the Vb5+ T cells in MS patients, underlining the potential limits of Vβ5- based immunotherapy in MS. We found an expanded T cell population using the same Vβ17-Jβ1.6 combination with identical CDR3 length in the CSF of three MS patients and none of the control patients. These results suggest selective expansion of T cells expressing this segment gene in the MS central nervous system.
与髓磷脂碱性蛋白的免疫显性区域共享人类 T 细胞受体 V beta。
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