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Submit a Letter to the Editor

Hypoxia-inducible factor activity promotes antitumor effector function and tissue residency by CD8+ T cells
Ilkka Liikanen, … , Deborah A. Witherden, Ananda W. Goldrath
Ilkka Liikanen, … , Deborah A. Witherden, Ananda W. Goldrath
Published April 1, 2021
Citation Information: J Clin Invest. 2021;131(7):e143729. https://doi.org/10.1172/JCI143729.
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Research Article Immunology Therapeutics

Hypoxia-inducible factor activity promotes antitumor effector function and tissue residency by CD8+ T cells

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Abstract

Adoptive T cell therapies (ACTs) hold great promise in cancer treatment, but low overall response rates in patients with solid tumors underscore remaining challenges in realizing the potential of this cellular immunotherapy approach. Promoting CD8+ T cell adaptation to tissue residency represents an underutilized but promising strategy to improve tumor-infiltrating lymphocyte (TIL) function. Here, we report that deletion of the HIF negative regulator von Hippel-Lindau (VHL) in CD8+ T cells induced HIF-1α/HIF-2α–dependent differentiation of tissue-resident memory–like (Trm-like) TILs in mouse models of malignancy. VHL-deficient TILs accumulated in tumors and exhibited a core Trm signature despite an exhaustion-associated phenotype, which led to retained polyfunctionality and response to αPD-1 immunotherapy, resulting in tumor eradication and protective tissue-resident memory. VHL deficiency similarly facilitated enhanced accumulation of chimeric antigen receptor (CAR) T cells with a Trm-like phenotype in tumors. Thus, HIF activity in CD8+ TILs promotes accumulation and antitumor activity, providing a new strategy to enhance the efficacy of ACTs.

Authors

Ilkka Liikanen, Colette Lauhan, Sara Quon, Kyla Omilusik, Anthony T. Phan, Laura Barceló Bartrolí, Amir Ferry, John Goulding, Joyce Chen, James P. Scott-Browne, Jason T. Yustein, Nicole E. Scharping, Deborah A. Witherden, Ananda W. Goldrath

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Guidelines: The Editorial Board will only consider letters that we deem relevant and of interest to our readers. We will not post data that have not been subjected to peer review, nor will we post letters that are essentially a reiteration of another letter. We reserve the right to edit any letter for length, content, and clarity. Authors will be notified by e-mail if their letters were accepted. No appeals will be considered.

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ISSN: 0021-9738 (print), 1558-8238 (online)

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