CD4+ T cell plasticity engenders robust immunity in response to cytokine therapy.

CD4+ T cells represent an entire arm of the immune system that has hitherto been incompletely understood, but their potential to act as both helper and effector may make them optimal protagonists in immunotherapeutic approaches to treat cancer. Cytokine therapy can activate this population in a manner that ensures maximal diversification of effector function for a robust immune response.