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Critical Role for IL-15 in Innate Immunity

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Although some functional activities of interleukin (IL)-15 on NK and T cells overlap with those of IL-2, recent findings obtained from gene-targeted mice deficient in components of IL-2 / IL-15 system demonstrate distinct roles of IL-15 for the activation of innate immune system. IL-15 is a pivotal cytokine for the development and survival of NK cells, NKT cells, TCRγδ+ intestinal intraepithelial lymphocytes (iIEL), and for the functional maturation of dendritic cells and macrophages. IL-15 is also important for memory T cell maintenance in vivo. In this review, I summarize recent progress of studies in the IL-15 / IL-15R system.

Keywords: iel; il-15; il-15/il-15r; il-2; innate immunity

Document Type: Review Article


Publication date: 2002-06-01

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  • Current Molecular Medicine is an interdisciplinary journal focused on providing the readership with current and comprehensive reviews on fundamental molecular mechanisms of disease pathogenesis, the development of molecular-diagnosis and/or novel approaches to rational treatment. The reviews should be of significant interest to basic researchers and clinical investigators in molecular medicine. Periodically the journal will invite guest editors to devote an issue on a basic research area that shows promise to advance our understanding of the molecular mechanism(s) of a disease or has potential for clinical applications.
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