T-cells and their Role in the Immune System

One of the most important cells in the immune system is the T-cell or killer cell as it is sometimes called. The T-cell is responsible for destroying invaders and abnormal cells, such as cancer cells and in this role is considered a "cytotoxin." The T-cell also has the ability to act as a Helper/Inducer cell, which controls the actions of many immune system cells. Another key job for the T-cell is to act as a suppresser cell and stop immune system cells from overreacting and causing damage to the body.

In AIDS, the Helper T-cell is not allowed to function properly, resulting in the collapse of the immune system efficiency.

< Previous Section: Overview of the Immune System | Next Section: Dangers of a Weak Immune System >