Intercellular canaliculi in eccrine sweat glands: an immunoperoxidase study

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Abstract
Using an indirect immunoperoxidase technique, both epithelial membrane antigen and carcinoembryonic antigenic [CEA] were identified within the ducts and secretory coils of human eccrine sweat glands. Antibodies to epithelial membrane antigen stained the intercellular canaliculi of the secretory coils, as did those antisera to CEA which showed activity against normal cross-reacting antigen (CEX, NCA). Those without such activity showed minimal or no staining of intercellular canaliculi. There is a difference in antigenic expression between the acinar cells and their intercellular canaliculi, and the cells of eccrine ducts.

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