Cyclosporin A inhibits activation-induced cell death in T-cell hybridomas and thymocytes
摘要:
ONE mechanism by which the immune system develops the ability to discriminate self from nonself is the deletion of autoreactive T-cell clones during thymic maturation 1–4 . The drug cyclosporin A (CsA) has been shown to interfere with this process, allowing the escape of normally 'forbidden' T-cell clones 5,6 and the appearance of autoimmune disease 7–10 . Recently, it has been demonstrated that immature thymocytes undergo programmed cell death (apoptosis) upon activation via the T-cell receptor 11 . A similar phenomenon of activation-induced cell death (AICD) has been observed in T-cell hybridomas 12,13 . Here we show that AICD in T-cell hybridomas in vitro and in thymocytes in vivo is blocked by CsA. Thus, clonal deletion may involve AICD when self-reactive, immature T cells are induced by self antigen and CsA may cause autoimmunity by interfering with this process.
展开
DOI:
10.1038/339625a0
被引量:
年份:
1989




























通过文献互助平台发起求助,成功后即可免费获取论文全文。
相似文献
参考文献
引证文献
辅助模式
引用
文献可以批量引用啦~
欢迎点我试用!