Back

Inducing an oxidized redox-balance improves anti-tumor CD8+ T cell function

Oh, J. H.; Cederberg, R. A.; Bopp, L.; Tanaka, E.; Ser, T.; Niyyati, S.; Patterson, A. E.; Amanat, N.; Dutra, J.; Ye, P.; Clark, M.; Ward-Hartstonge, K.; Archambault, A.-S.; Tsui, J.; Lange, P. F.; Tsai, S.; Verchere, C. B.; Park, Y.; Fabri, M.; Bennewith, K. L.; Geltink, R. I. K.

2023-03-27 immunology
10.1101/2023.03.27.533229 bioRxiv
Show abstract

Cancer immunotherapy using antigen-specific CD8+ T cells depends on long-lasting anti-tumor function of the in vitro expanded T cells. T cell function is intricately linked to the activity of many metabolic pathways directly impacting the ability of CD8+ T cells to kill tumor cells. Metabolic conditioning in vitro better prepares CD8+ T cells for in vivo survival, tumor infiltration and tumor clearance. The mechanism underlying in vitro metabolic conditioning-induced augmented in vivo T cell function remains poorly understood. Here we show that metabolic conditioning of CD8+ effector T cells induces an oxidized cellular redox balance at least in part mediated by increased mitochondrial reactive oxygen species (ROS). This redox shift contributes to enhanced in vivo persistence and tumor clearance. In human tumour-infiltrating T cells, altering the redox balance ex-vivo reinvigorated pro-inflammatory cytokine production. Therefore, we believe that redox alterations present a targetable pathway to increase T cell-based anti-tumor immunotherapy efficacy.

Matching journals

The top 6 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.