Scientists have uncovered new genetic rules that determine whether the immune system’s “killer” T cells remain powerful long-term defenders or become worn out and ineffective. By building a detailed ...

T cells are essential components of the immune system and play critical roles in immune responses against infections, tumors, and autoimmune diseases. T cells are highly heterogeneous, with distinct ...

Our immune system relies on T cells to fight infections. But T cells don't just show up and react—first, they train, get a ...