IL-4

Interleukin-4 (IL-4) is a protein that acts as a messenger in our immune system. It helps coordinate how the body responds to infections, particularly in promoting the production of certain immune cells called B cells that make antibodies. IL-4 also encourages the immune system to favor a type of response that’s effective against parasites and allergic reactions. It plays a key role in balancing immune activity, supporting defense mechanisms, and influencing inflammation. Overall, IL-4 is essential for shaping how our immune system reacts to different threats and maintaining immune health.