Prognostic value of p53 protein expression and clinicopathological factors in infiltrating ductal carcinoma of the breast. A study of 192 patients J.J. Sirvent1,2, A. Fortuño-Mar2, M. Olona1,2 and A. Ortí3 1Joan XXIII Hospital, Tarragona, 2Faculty of
Medicine, University Rovira i Virgili, Reus, and Offprint requests to: Dr. Joan Josep Sirvent, Servei d'Anatomia Patològica, Hospital Universitari Joan XXIII, Dr. Mallafré Guasch, 4, 43007-Tarragona, Spain. Fax: 34-77759322. e-mail: jjsc@fmcs.urv.es
Summary. The
p53 gene is located on the short arm of chromosome 17. It encodes
a 53-kd nuclear protein (p53) found in scant amounts in normal
tissue. Mutations of the p53 gene have been reported in different
human tumours. In breast cancer, it has been noted that the overexpression
of p53 protein in the nucleus is an indicator of poor prognosis,
although there is a high degree of variability, which may be due
to different immunohistochemical techniques, varying assessment
of results and the type of monoclonal antibody used. Key words: p53,
Immunohistochemical, Ductal carcinoma, Prognosis |