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p53 Protein Expression in Infiltrating Ductal Carcinoma of the Breast.
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Original Article p53 Protein Expression in Infiltrating Ductal Carcinoma of the Breast.
Soon Hee Jung, Mee Yon Cho, Soo Yong Kim
Journal of Pathology and Translational Medicine 1996;30(1):7-14
DOI: https://doi.org/
1Department of Pathology, Yonsei University Wonju College of Medicine, 220-701 Wonju, Korea.
2Department of General Surgery, Yonsei University Wonju College of Medicine, 220-701 Wonju, Korea.
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Overexpression of the nuclear phosphoprotein p53 is the most common genetic anomaly found in primary human cancer and mutation of the tumor suppressor gene p53 has been identified in breast cancer cell lines. In this study, we evaluated the prognostic significance of p53 protein expression in patients with mammary infiltrating ductal carcinoma and its correlation with histopathologic grade, lymph node status, tumor size, p53 protein expression and survival. Among 53 cases, p53 protein expression was detected in 26(49.1%) cases by immunohistochemistry. There was no correlation between p53 protein overexpression and histopathologic grade(p=0.09) or lymph node status(p=0.38) and between survival and histopathologic grade (p=0.68) or lymph node status(p=0.52). However, p53 protein expression was significantly correlated with survival(p=0.01) and patients with p53 protein-positive tumors showed poorer survival times. But Cox multivariate analysis showed the lymph node status is significant(p=0.01). The authors conclude that the presence of mutant p53 protein and lymph node status may serve a prognostic role, in a subset of mammary infiltrating ductal carcinoma cases.

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