IL-13

IL-13 is a type of protein called a cytokine that plays a role in the immune system, especially in allergic responses and inflammation. It is produced by certain immune cells and helps coordinate the body's defense against allergens and parasites. IL-13 influences how immune cells react, promotes mucus production, and can contribute to symptoms like asthma and allergies when produced in excess. Essentially, it helps regulate immune responses, but when imbalanced, it can lead to inflammation and allergic conditions.