Tissue-resident memory T cells (TRM) represent a heterogeneous T cell population with the functionality of both effector and memory T cells. TRM express residence gene signatures. This feature allows them to traffic to, reside in, and potentially patrol peripheral tissues, thereby enforcing an efficient long-term immune-protective role. Recent studies have revealed TRM involvement in tumor immune responses. TRM tumor infiltration correlates with enhanced response to current immunotherapy and is often associated with favorable clinical outcome in patients with cancer. Thus, targeting TRM may lead to enhanced cancer immunotherapy efficacy. Here, we review and discuss recent advances on the nature of TRM in the context of tumor immunity and immunotherapy.
Tissue-resident memory T cells in tumor immunity and immunotherapy
Disclosures: The authors declare no competing interests exist.
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Karolina Okła, Donna L. Farber, Weiping Zou; Tissue-resident memory T cells in tumor immunity and immunotherapy. J Exp Med 5 April 2021; 218 (4): e20201605. doi: https://doi.org/10.1084/jem.20201605
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