TCF1+ progenitor-exhausted CD8+ T cell populations mediate durable antitumor immunity. Upon antigenic stimulation, effector T cells upregulate aerobic glycolysis to support their cytotoxic phenotype. Here, Mittal and colleagues find that loss of metabolic regulator PKM2 enriches for TCF1+ progenitor-exhausted-like cells and improves responsiveness to PD-1 blockade.
- Geoffrey J. Markowitz
- Yi Ban
- Vivek Mittal
