Mast cells release?: (A) IFN-g, (B) IL-5, (C) Histamine, (D) Lysozyme
Answer is C. Ans. is 'c' i.e., Histamine o Mast cells reside and mature in tissues. They are the most important cells in immediate hypersensitivity and are also the most important source of histamine.o Other secretions are : Serine proteases, Carboxypeptidases, Glycosidoses, Proteoglycans, Sulfatases.