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Assessment of proliferating cell nuclear antigen expression in precursor stages of gastric carcinoma using the PC10 antibody to PCNA
Author(s) -
FILIPE M. I.,
MENDES R.,
LANE D. P.,
MORRIS R. W.
Publication year - 1993
Publication title -
histopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.626
H-Index - 124
eISSN - 1365-2559
pISSN - 0309-0167
DOI - 10.1111/j.1365-2559.1993.tb00134.x
Subject(s) - proliferating cell nuclear antigen , dysplasia , intestinal metaplasia , immunohistochemistry , pathology , metaplasia , carcinoma , biology , hyperplasia , antigen , atypical hyperplasia , cancer , medicine , immunology , genetics
Immunohistochemistry using the PC10 antibody to proliferating cell nuclear antigen (PCNA) was applied to archival material from mucosa adjacent to gastric carcinoma (‘normal’, hyperplasia, complete and incomplete intestinal metaplasia and dysplasia) and non‐cancer controls (normal and complete intestinal metaplasia). Overall, increased PCNA indices, with expansion and altered location of the proliferative zones, were observed in carcinoma fields and compared with controls ( P ≤0.001). These differences were particularly significant in ‘normal’ mucosa far from carcinoma as compared with normal in controls ( P ≤0.001). In carcinoma ‘fields’ distinct patterns of PCNA expression were noted in complete and incomplete intestinal metaplasia. Similarly, in dysplastic lesions high PCNA indices were present either throughout the gland or found predominantly in the upper compartment. We conclude that these differences in PCNA index and staining patterns might prove useful in monitoring the evolution of the disease in the follow‐up of patients at risk of developing gastric cancer.