The Structure of IgA.- IgA Plasma Cell Development.- Epithelial Transport of IgA by the Polymeric Immunoglobulin Receptor.- Fc Receptors for IgA.- Regulation of the Mucosal IgA System.- Biological Functions of IgA.- Protection of Mucosal Epithelia by IgA: Intracellular Neutralization and Excretion of Antigens.- Novel Functions for Mucosal SIgA.- IgA and Antigen Sampling.- IgA and Intestinal Homeostasis.- IgA and Respiratory Immunity.- IgA and Reproductive Tract Immunity.- IgA-Associated Diseases.-... Mehr