secretory immunoglobulin A

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se·cre·to·ry im·mu·no·glob·u·lin A

a subclass of IgA that is found primarily in secretions such as tears and colostrum. This form of IgA is protected from proteolytic degradation by the presence of a secretory component.

secretory immunoglobulin A,

n protein found in bodily secretions; can protect against antigen overload by binding the antigens and transporting them through the liver into the bile to be eliminated. In some cases it can prevent the absorption of antigens.
References in periodicals archive ?
Effect of exercise'aging and functional capacity on acute secretory immunoglobulin A response in elderly people over 75 years of age: Geriator Gerontol Int:.
Effects of choir singing or listening on secretory immunoglobulin A, cortisol, and emotional state.
T cells, secretory immunoglobulin A (S-IgA), and antigen-specific cytotoxic T-lymphocytes (CTLs).