Premium
Heat‐induced antigen retrieval of proliferating cell nuclear antigen and p53 protein in formalin‐fixed, paraffin‐embedded sections
Author(s) -
Kawai Kenji,
Serizawa Akihiko,
Hamana Toshiyasu,
Tsutsumi Yutaka
Publication year - 1994
Publication title -
pathology international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
eISSN - 1440-1827
pISSN - 1320-5463
DOI - 10.1111/j.1440-1827.1994.tb02923.x
Subject(s) - proliferating cell nuclear antigen , antigenicity , immunohistochemistry , antigen , phosphate buffered saline , chemistry , microbiology and biotechnology , antigen retrieval , pathology , biology , medicine , chromatography , immunology
Immunohistochemical demonstration of proliferating cell nuclear antigen (PCNA) and p53 protein is important, particularly for the surgical diagnosis of neoplastic disorders. An effective, simple and reproducible method was established for observing the expression of these intranuclear antigens in routinely processed, formalin‐fixed paraffin‐embedded sections. Dramatic improvement of the antigenicity was obtained when the deparaffinized sections were heated in a hot water bath at 90°C for 120 rnin in 0.01 mol/L citrate buffer, pH 6.0, for PCNA and in 0.01 mol/L phosphate‐buffered saline, pH 7.2, for p53 protein. These reliable pre‐treatments are useful for the detailed comparative analysis of the expression of PCNA and p53 protein and fine histologic architecture and for retrospective study using a large number of archival specimens.