Journal
NATURE
Volume 576, Issue 7786, Pages 293-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41586-019-1805-z
Keywords
-
Categories
Funding
- Stand Up To Cancer-St Baldrick's-National Cancer Institute Pediatric Dream Team Translational Cancer Research Grant
- Parker Institute for Cancer Immunotherapy
- Virginia and D.K. Ludwig Fund for Cancer Research
- NIH [P50-HG007735, S10OD018220]
- Parker Bridge Scholar Award from the Parker Institute for Cancer Immunotherapy
- Career Award for Medical Scientists from the Burroughs Welcome Fund
- Emerson Collective Cancer Research Fund
Ask authors/readers for more resources
Chimeric antigen receptor (CAR) T cells mediate anti-tumour effects in a small subset of patients with cancer(1-3), but dysfunction due to T cell exhaustion is an important barrier to progress(4-6). To investigate the biology of exhaustion in human T cells expressing CAR receptors, we used a model system with a tonically signaling CAR, which induces hallmark features of exhaustion(6). Exhaustion was associated with a profound defect in the production of IL-2, along with increased chromatin accessibility of AP-1 transcription factor motifs and overexpression of the bZIP and IRF transcription factors that have been implicated in mediating dysfunction in exhausted T cells(7-10). Here we show that CAR T cells engineered to overexpress the canonical AP-1 factor c-Jun have enhanced expansion potential, increased functional capacity, diminished terminal differentiation and improved anti-tumour potency in five different mouse tumour models in vivo. We conclude that a functional deficiency in c-Jun mediates dysfunction in exhausted human T cells, and that engineering CAR T cells to overexpress c-Jun renders them resistant to exhaustion, thereby addressing a major barrier to progress for this emerging class of therapeutic agents.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available