IL-2

Interleukin-2 (IL-2) is a protein produced by certain immune cells that plays a key role in the body's defense system. It acts as a growth signal, encouraging the multiplication and activation of another group of immune cells called T cells, which help identify and attack infections and abnormal cells like cancer. IL-2 is essential for coordinating immune responses, ensuring the body can effectively fight off illnesses. It also influences the development of immune memory, helping the body respond more efficiently to future threats.