Molecular analysis of the T‐cell receptor β‐chain repertoire in early rheumatoid arthritis: heterogeneous TCRBV gene usage with shared amino acid profiles in CDR3 regions of T lymphocytes in multiple synovial tissue needle biopsies from the same joint

Molecular analysis of the T‐cell receptor β‐chain repertoire in early rheumatoid arthritis: heterogeneous TCRBV gene usage with shared amino acid profiles in CDR3 regions of T lymphocytes in multiple synovial tissue needle biopsies from the same joint
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早期类风湿性关节炎 T 细胞受体 β 链库的分子分析:来自同一关节的多个滑膜组织针吸活检中 T 淋巴细胞 CDR3 区域的异质 TCRBV 基因使用与共享氨基酸谱

DOI:
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发表时间:
1996
影响因子:
5.5
通讯作者:
P. J. van den Elsen
P. J. van den Elsen
中科院分区:
医学3区
文献类型:
--
作者:
L. Struyk;G. Hawes;H. Mikkers;P. Tak;F. Breedveld;P. J. van den Elsen

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为了深入了解类风湿关节炎(RA)滑膜组织中T细胞受体(TCR)库积累和组成方面的免疫应答性质,我们确定了滑膜组织来源的T淋巴细胞转录的TCRBV区域的核苷酸序列。滑膜组织是从两个早期类风湿关节炎患者的同一关节的三个不同部位通过针吸活检获得的。我们发现,当比较从每位患者采集的不同活检标本时,滑膜组织浸润单核细胞中的TCRBV区域库是异质的。然而,滑膜T淋巴细胞的TCRBV重排的DNA序列分析显示,保守的氨基酸使用谱在不同的TCRBV区域的CDR3结构域,这表现出个人的具体特征。这些CDR3基序不存在于配对的外周血样品中。来源于滑膜组织的TCRBV区域内同源CDR 3氨基酸谱的存在指示抗原驱动的免疫应答。
To gain insight into the nature of the immune response with respect to accumulation and composition of the T‐cell receptor (TCR) repertoire in synovial tissue in rheumatoid arthritis (RA), we have determined the nucleotide sequence of TCRBV regions transcribed by T lymphocytes derived from synovial tissue. Synovial tissue was obtained by needle biopsies from three different sites of the same joint in two early RA patients. We found that the TCRBV region repertoire among synovial tissue‐infiltrating mononuclear cells was heterogeneous when the different biopsies taken from each patient were compared. However, DNA sequence analysis of TCRBV rearrangements of synovial T lymphocytes showed conserved amino acid usage profiles in the CDR3 domains of different TCRBV regions, which exhibited an individual specific character. These CDR3 motifs were not present in paired samples of peripheral blood. The existence of homologous CDR3 amino acid profiles within the TCRBV regions derived from synovial tissue is indicative of an antigen‐driven immune response.
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发表时间: 1994
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