首页> 外文期刊>Cytokine >Binding of nuclear proteins to the negative regulatory element of the IL-2 gene in lymphocytes from rheumatic patients.
【24h】

Binding of nuclear proteins to the negative regulatory element of the IL-2 gene in lymphocytes from rheumatic patients.

机译:风湿病患者淋巴细胞中核蛋白与IL-2基因负调控元件的结合。

获取原文
获取原文并翻译 | 示例
           

摘要

T lymphocytes from several autoimmune diseases including rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE) exhibit deficient mitogenic response in terms of proliferation and IL-2 production. The expression of the IL-2 gene is regulated by various transcription factors. One of these factors suppresses IL-2 expression and binds to the negative responsive element in the IL-2 gene 5' flanking region (NRE-A). The authors hypothesized that the decreased production of IL-2 by T cells from RA and SLE patients is at least partially caused by high expression of the NRE-A binding protein. To test this hypothesis T cells from healthy donors and patients with RA and SLE were stimulated. Using the electrophoretic mobility shift assay we detected NRE-A DNA-binding proteins in the nuclei of the stimulated cells. No difference was found between NRE-A DNA binding in nuclear extracts of T cells taken from healthy donors and those taken from patients. The specificity of the DNA-protein interactions was ascertained through the use of unlabeled DNA competitors. No correlation was found between DNA-binding and the patients' disease duration or medication. In conclusion, decreased IL-2 biosynthesis by T lymphocytes from RA and SLE patients can not be explained by abnormal expression of the NRE-A DNA-binding protein. Copyright 1999 Academic Press.
机译:来自几种自身免疫性疾病的T淋巴细胞,包括类风湿性关节炎(RA)和系统性红斑狼疮(SLE),在增殖和IL-2产生方面均显示出不足的促有丝分裂反应。 IL-2基因的表达受多种转录因子调控。这些因素之一抑制IL-2表达,并与IL-2基因5'侧翼区(NRE-A)中的负响应元件结合。作者假设,RA和SLE患者的T细胞产生的IL-2降低至少部分是由NRE-A结合蛋白的高表达引起的。为了检验该假设,刺激了来自健康供体以及RA和SLE患者的T细胞。使用电泳迁移率变动分析,我们在受激细胞的细胞核中检测到NRE-A DNA结合蛋白。从健康供体和患者体内提取的T细胞核提取物中的NRE-A DNA结合没有发现差异。 DNA-蛋白质相互作用的特异性通过使用未标记的DNA竞争剂来确定。在DNA结合与患者的病程或药物治疗之间未发现相关性。总之,不能通过NRE-A DNA结合蛋白的异常表达来解释RA和SLE患者T淋巴细胞的IL-2生物合成减少。版权所有1999,学术出版社。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号