IL-5

Interleukin-5 (IL-5) is a protein produced by certain immune cells that helps coordinate the body's response to allergens and infections. Its main role is to stimulate the growth, activation, and survival of eosinophils, a type of white blood cell involved in fighting parasites and contributing to allergic reactions. Elevated IL-5 levels are often associated with allergic asthma and other eosinophilic conditions, leading to inflammation and symptoms like airway constriction. By understanding IL-5's function, researchers develop targeted therapies to reduce this inflammation and improve symptoms in affected individuals.