New insights highlight multifaceted roles of CD4+ T cells in tumor immunity
For decades, cancer immunotherapy has focused primarily on CD8+ cytotoxic T lymphocytes as the main executors of tumor cell killing. However, growing clinical and single-cell sequencing evidence shows that CD4+ T cells are far more than immune “helpers.” Within tumors, CD4+ T cell subsets exhibit remarkable heterogeneity, ranging from cytotoxic CD4+ CTLs to immunosuppressive regulatory … Read more