Overcoming the suppressive tumor microenvironment (TME) is crucial to improving the efficacy of cancer therapy. Here the authors show that, in mouse cancer models, administration of exogenous IL-16 establishes a Th1-dominant TME via regulation of glutamine catabolism and triggers a Th1 cell-macrophage crosstalk, enhancing anti-tumor immune responses and the efficacy of immunotherapy.
- Zhenzhen Wen
- Tong Liu
- Peng Xiao