Why IgA Is Commonly Called As Secretory Antibodies?

Why IgA Is Commonly Called As Secretory Antibodies? Because dimeric IgA is able to bind two antigens simultaneously, it is capable of forming large antigen-antibody complexes. In this manner, IgA neutralizes microbes and facilitates their removal by mucociliary clearance, inhibits microbial binding to epithelial cells, and inhibits uptake of potential allergens. Why is IgA known