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  • 标题:CD4 on CD8+ T cells directly enhances effector function and is a target for HIV infection
  • 本地全文:下载
  • 作者:Scott G. Kitchen ; Nicole R. Jones ; Stuart LaForge
  • 期刊名称:Proceedings of the National Academy of Sciences
  • 印刷版ISSN:0027-8424
  • 电子版ISSN:1091-6490
  • 出版年度:2004
  • 卷号:101
  • 期号:23
  • 页码:8727-8732
  • DOI:10.1073/pnas.0401500101
  • 语种:English
  • 出版社:The National Academy of Sciences of the United States of America
  • 摘要:Costimulation of purified CD8+ T lymphocytes induces de novo expression of CD4, suggesting a previously unrecognized function for this molecule in the immune response. Here, we report that the CD4 molecule plays a direct role in CD8+ T cell function by modulating expression of IFN-{gamma} and Fas ligand, two important CD8+ T cell effector molecules. CD4 expression also allows infection of CD8 cells by HIV, which results in down-regulation of the CD4 molecule and impairs the induction of IFN-{gamma
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