How T-cells Work
Step 10 of 10. T-cells eliminate cells displaying foreign peptide.
If a foreign peptide is discovered killer T-cells eliminate the cell that displays it. In this way killer T-cells are able to eradicate cancer cells and cells that harbour germs
In the figure above time-lapsed photography shows a killer T-cell killing a larger cancer cell. The killer T-cell can then kill further targets in series. The panel on the right shows a high resolution picture (taken with electrons not light) of a killer T-cell.