How do T cells protect us from infection?

T cell kills cancer Cell T cells, a type of white blood cell, can recognize and kill cancer cells through a process called cell-mediated immunity. When T cells encounter cancer cells, they use specific receptors to identify abnormal proteins (antigens) on the cancer cell surface. This recognition triggers the activation of the T cell. Activated T cells can then release cytotoxic molecules, such as perforin and granzymes, which create pores in the cancer cell membrane and induce apoptosis, a prog