Frontiers in Immunology
Frontiers in Immunology
5 years ago

Epigenetic Maintenance of Acquired Gene Expression Programs during Memory CD8 T Cell Homeostasis.

Ben Youngblood, Caitlin C Zebley, Hossam A Abdelsamed
Memory CD8 T cells have a unique ability to provide lifelong immunity against pathogens containing their cognate epitope. Because of their ability to provide lifelong protection, the generation of memory T cells is now a major focus for current vaccination or adoptive cell therapy approaches to treat chronic viral infections and cancer. It is now clear that maintenance of memory CD8 T cells occurs through a process of antigen-independent homeostatic proliferation, which is regulated in part by the gamma chain cytokines IL-7 and IL-15. Here, we will describe the role of these cytokines in the survival and self-renewal of memory CD8 T cells. Further, we will describe the role of epigenetics in the maintenance of acquired functions among memory CD8 T cells during homeostatic proliferation.

Publisher URL: http://doi.org/10.3389/fimmu.2018.00006

DOI: 10.3389/fimmu.2018.00006

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