Identification of clonally expanded T cells in rheumatoid arthritis using a sequence enrichment nuclease assay.

Identification of clonally expanded T cells in rheumatoid arthritis using a sequence enrichment nuclease assay.
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使用序列富集核酸酶测定鉴定类风湿性关节炎中克隆扩增的 T 细胞。

DOI:
10.1172/jci118550
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发表时间:
1996
期刊:
The Journal of clinical investigation.
影响因子:
--
通讯作者:
Theofilopoulos,AN
Theofilopoulos,AN
中科院分区:
--
文献类型:
--
作者:
Gonzalez-Quintial,R;Baccala,R;Pope,RM;Theofilopoulos,AN

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参与免疫和自身免疫反应的扩增克隆的鉴定仍然是不完善的,因为它们经常被表达不同特异性的不相关细胞稀释。为了有效地表征类风湿关节炎(RA)和其他炎症条件下克隆扩增的淋巴细胞表达的T细胞受体,我们开发了一种测定系统,称为序列富集核酸酶测定(SENA)。SENA的关键要素是热变性DNA链再结合的效率,其随浓度呈指数增加,以及单链特异性DNA酶消除未杂交序列。T细胞克隆性扩增主要在关节液中发现,但也在RA患者的外周血中发现。滑液中CD8亚群的扩增比CD4亚群的扩增更显著,而CD4亚群的克隆扩增在外周血淋巴细胞中占主导地位。优势克隆表现出不同的序列,没有明确的连接基序的保守性,虽然相同的氨基酸序列被确定在两名患者。在大多数情况下,血液中的优势克隆与相应滑液中的克隆不一致,表明局部刺激或优先隔离显示特定特异性的T细胞。
Identification of expanded clones engaged in immune and autoimmune responses is still imperfect, since they are often diluted by irrelevant cells expressing diverse specificities. To efficiently characterize T cell receptors expressed by clonally expanded lymphocytes in rheumatoid arthritis (RA) and other inflammatory conditions, we developed an assay system, termed sequence enrichment nuclease assay (SENA). Key elements of SENA are the efficiency of heat-denatured DNA strand reassociation, which increases exponentially with concentration, and the elimination of unhybridized sequences by single-strand-specific DNase. T cell clonal expansions were identified primarily in synovial fluids, but also in peripheral blood of RA patients. Synovial fluids had more prominent expansions in the CD8 than the CD4 subset, whereas clonal expansions in the CD4 subset predominated among peripheral blood lymphocytes. Dominant clones exhibited diverse sequences with no clear conservation of junctional motifs, although the same amino acid sequence was identified in two patients. In most instances, dominant clones in the blood were discordant to those in the corresponding synovial fluid, suggesting local stimulation or preferential sequestration of T cells displaying particular specifities.
克隆vα12.1+ T细胞在类风湿关节炎患者外周血中的扩张。
DOI: 10.1084/jem.177.6.1623
发表时间: 1993-06-01
期刊: The Journal of experimental medicine
影响因子: --
作者:
DerSimonian H;Sugita M;Glass DN;Maier AL;Weinblatt ME;Rème T;Brenner MB
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DOI: 10.1126/science.1857971
发表时间: 1991-07-19
期刊: SCIENCE
影响因子: 56.9
作者:
PALIARD, X;WEST, SG;KOTZIN, BL
通讯作者: KOTZIN, BL
DOI: --
发表时间: 1973
期刊: The Quarterly review of biology
影响因子: --
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HLA基因对外周血淋巴细胞中T细胞受体V节段频率和表达水平的影响。
DOI: --
发表时间: 1993
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Akolkar,PN;Gulwani-Akolkar,B;Pergolizzi,R;Bigler,RD;Silver,J
通讯作者: Silver,J
自身免疫的基础:第一部分。异常自我识别的机制。
DOI: 10.1016/0167-5699(95)80095-6
发表时间: 1995
期刊: Immunology today.
影响因子: --
作者:
Theofilopoulos,AN
通讯作者: Theofilopoulos,AN