Just like T-cells, each B-cell has a receptor that will connect to only one antigen shape. And, like T-cells, B-cells that recognize self-antigens are destroyed, so they don’t harm your body’s healthy cells.

How do B cells act against antigens?

Antibody responses to protein antigens require antigen-specific T-cell help. … Thus, protein antigens binding to B cells both provide a specific signal to the B cell by cross-linking its antigen receptors and allow the B cell to attract antigenspecific T-cell help.

What cells kill antigens?

There are three types of T cells: Killer T cells destroy unwanted materials. When they encounter antigens attached to harmful invaders, they kill the invaders. Examples include viruses and cells that are undergoing pre-cancerous changes, but are not quite cancer.