The identification of tumor-reactive T cells using phenotypic markers is now well established in treatment-naive tumors. It is unclear, however, whether these markers can also be useful after immune checkpoint blockade (ICB). A new study finds that CXCL13 expression robustly identifies tumor-reactive T cells before and after ICB and is associated with treatment response.
- Paulien Kaptein
- Daniela S. Thommen