Mast cells are multifunctional and play roles in both innate and adaptive immunity. They are best known for their role in allergic reactions, where they release histamine and other mediators in response to allergens. This causes symptoms like itching, swelling, and redness. Additionally, mast cells release cytokines and chemokines that attract other immune cells to sites of infection or injury, facilitating the inflammatory response. They also contribute to tissue repair and homeostasis by releasing growth factors and other molecules.
