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American Journal of Pathology, Vol 126, 269-284, Copyright © 1987 by American Society for Investigative Pathology

REGULAR ARTICLES

Immunoanatomic distribution of cytostructural and tissue-associated antigens in the human urinary tract

C Cordon-Cardo, CL Finstad, NH Bander and MR Melamed

The main objective of the present study is to define the expression and/or modulation of antigenic phenotypes in cells of the normal human kidney and urothelium according to cell type. Fourteen antibodies detecting differentiation and structural antigens expressed in the human urinary tract have been used to define the immunoanatomic distribution of these antigenic systems. They include urinary tract antigens (Tamm-Horsfall glycoprotein and prostate-specific antigen), tissue-associated antigens (epithelial membrane antigen, Factor VIII antigen, and Protein S-100), and cytoskeletal antigens of the intermediate filament classes (cytokeratins, vimentin, desmin, glial fibrillary acidic protein, and neurofilaments. Immunofluorescence and immunoperoxidase analyses performed on normal human fetal and adult tissue sections have demonstrated that these antigens are expressed by different cell types and domains of the nephron. Studies correlating normal fetal and adult tissues reveal that some of the antigens appear at distinct stages of maturation, representing early and late antigenic expression events. These antibodies offer a wide range of potential applications that include studies of embryogenesis of the human urinary tract and immunopathologic analyses of neoplastic and nonneoplastic diseases of the human kidney and urothelium.


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Copyright © 1987 by the American Society for Investigative Pathology.