...
首页> 外文期刊>Cellular immunology >Abnormal quantity and function of regulatory T cells in peripheral blood of patients with severe aplastic anemia
【24h】

Abnormal quantity and function of regulatory T cells in peripheral blood of patients with severe aplastic anemia

机译:严重再生障碍性贫血患者外周血中调节性T细胞的数量和功能异常

获取原文
获取原文并翻译 | 示例
           

摘要

Severe aplastic anemia is a rare autoimmune disease characterized by severe pancytopenia and bone marrow failure, which is caused by activated T lymphocytes. Tregs are believed to control development and progression of autoimmunity by suppressing autoreactive T cells. This study aims at understanding the quantity and function of peripheral Tregs in SAA. The expression of related biomarkers on Treg cell surface were determined by flow cytometry. The frequency of Tregs and the expression of CTLA-4 in SAA was significantly decreased than that in normal controls. The expression of perforin in SAA was significantly increased than that in controls, while expression of CD39, CD73 and GITR in Tregs did not show any significant difference between the two groups. These data revealed that CTLA-4 could be responsible for Treg abnormalities in SAA, but suppression mediated by perforin, CD39, CD73 and GITR, and survival capability of single Treg cell may not be injured. (C) 2015 Elsevier Inc. All rights reserved.
机译:再生障碍性贫血是一种罕见的自身免疫性疾病,其特征是严重的全血细胞减少症和骨髓衰竭,这是由活化的T淋巴细胞引起的。据信Treg通过抑制自身反应性T细胞来控制自身免疫的发展和进程。本研究旨在了解SAA中外周血Treg的数量和功能。通过流式细胞术确定Treg细胞表面上相关生物标志物的表达。与正常对照组相比,SAA患者的Tregs频率和CTLA-4表达明显降低。 SAA中穿孔素的表达明显高于对照组,而Tregs中CD39,CD73和GITR的表达在两组之间没有显着差异。这些数据表明,CTLA-4可能是SAA中Treg异常的原因,但穿孔素,CD39,CD73和GITR介导的抑制作用以及单个Treg细胞的存活能力可能不会受到损害。 (C)2015 Elsevier Inc.保留所有权利。

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