IL-15 is a member of the common gamma chain family of cytokines and plays important roles in regulating several aspects of innate and adaptive immunity. Besides its established role in controlling homeostatic proliferation and survival of memory CD8+ T cells and natural killer cells, recent findings demonstrate that inflammatory IL-15 can also stimulate a variety of effector functions, such as enhanced cytotoxicity, entry into the cell cycle, and trafficking into non-lymphoid tissues. Here, we discuss how IL-15 is critical in regulating many functions of memory CD8+ T cells and how these processes act collectively to ensure optimal protective cellular immunity against re-infections. Copyright © 2019 Elsevier Ltd. All rights reserved.
Jeffrey C Nolz, Martin J Richer. Control of memory CD8+ T cell longevity and effector functions by IL-15. Molecular immunology. 2020 Jan;117:180-188
PMID: 31816491
View Full Text