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Localization of Hepatitis B Surface Antigen in Conventional Paraffin Sections of the Liver. Comparison of Immunofluorescence, Immunoperoxidase, and Orcein Staining Methods with Regard to Their Specificity and Reliability As Antigen Marker

Overview
Journal Am J Pathol
Publisher Elsevier
Specialty Pathology
Date 1975 Dec 1
PMID 55076
Citations 8
Authors
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Abstract

Hepatitis B antigen (HBAg) has been demonstrated in conventional formalin-fixed paraffin-embedded liver tissue by peroxidase and fluorescent immunostaining as well as by orcein. Complete locational and morphologic identity is seen between material stained by specific immunologic methods and by orcein. The antigen is restricted to the cytoplasm and is generally observed in the hepatocyte; it is present in three morphologic forms. Certain morphologic forms can even be identified in hematoxylin and eosin-stained tissue. Results of immunostaining procedures indicate that the antigen demonstrated in this study consists entirely of surface coat of hepatitis B virus (HBsAg). This seems to be the only component revealed by orcein staining. The latter is considered to be a good marker of the surface antigen and to have certain advantages over immunostaining. It is suggested that suitability of conventional paraffin sections for the detection of HBAg has wide and important implications.

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