THE HUMAN SECRETORY IMMUNOGLOBULIN SYSTEM: IMMUNOHISTOLOGICAL LOCALIZATION OF γA, SECRETORY "PIECE," AND LACTOFERRIN IN NORMAL HUMAN TISSUES

Abstract
The immunohistological localization of γA, secretory "piece" (SP), and lactoferrin (LF) in the mucosae of a variety of normal human tissues was investigated using specific fluoresceinated antisera. γA staining was localized in the apical portion of the mucosal epithelium, intercellular spaces, basement membrane area, and plasma cells of the interstitium or lamina propria of a number of normal human tissues.