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American Journal of Pathology, Vol 141, 1209-1216, Copyright © 1992 by American Society for Investigative Pathology

REGULAR ARTICLES

Epitopes of human immunodeficiency virus regulatory proteins tat, nef, and rev are expressed in normal human tissue

HK Parmentier, DF van Wichen, FH Meyling, J Goudsmit and HJ Schuurman
Department of Pathology, University Hospital, Utrecht, The Netherlands.

The expression of regulatory proteins tat, rev, and nef of human immunodeficiency virus type-1 (HIV-1) and tat of HIV-2 was studied in frozen sections of lymph nodes from HIV-1-infected individuals, and various tissues from uninfected persons. In HIV-1-positive lymph nodes, monoclonal antibodies to HIV-1-tat stained solitary cells in the germinal centers and interfollicular zones, and vascular endothelium. Staining by an anti-nef monoclonal antibody was restricted to follicular dendritic cells, whereas anti-rev antibody bound to fibriohistiocytes and high endothelial venules. The antibodies used labeled several cell types in tissues from uninfected individuals. Anti- HIV-1-tat antibodies labeled blood vessels and Hassall's corpuscles in skin and thymus; goblet cells in intestinal tissue and trachea; neural cells in brain and spinal cord; and zymogen-producing cells in pancreas. Anti-rev antibody stained high endothelial venules, Hassall's corpuscles and histiocytes. One anti-nef antibody solely stained follicular dendritic cells in spleen, tonsil, lymph node and Peyer's patches, whereas two other anti-nef antibodies bound to astrocytes, solitary cells in the interfollicular zones of lymph nodes, and skin cells. The current results hamper the immunohistochemical study for pathogenetic and diagnostic use of HIV regulatory protein expression in infected tissue specimens or cells.


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Copyright © 1992 by the American Society for Investigative Pathology.