Immunohistochemical analysis of expression of a 65 kDa oncofetal protein (p65), epidermal growth factor receptor (EGFR), oncogene c-erb B2 and tumor suppressor gene p53 protein products in breast cancer patients

Neoplasma. 2000;47(1):8-14.

Abstract

Paraffin-embedded tissue slides from 88 infiltrating ductal breast carcinoma were examined by immunohistochemistry technique with the use of monoclonal antibody against human p65 antigen and polyclonal antibody against p65-like protein present in fetal bovine serum. Immunohistochemical analysis of expression of growth factor receptors (EGFR), protein product of oncogene c-erb B2 as well as protein product of mutated anti-oncogene p53 was also done. It was established that there is no correlation between p65 and c-erbB2, EGFR or p53 expression. In low differentiated tumors (grade III) high p53 index and high EGFR and c-erbB2 expression was connected with low p65 expression. The lack of c-erbB2 and EGFR and low p53 expression was combined usually with high p65 oncoprotein levels.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antibodies, Monoclonal
  • Biomarkers, Tumor / genetics
  • Biomarkers, Tumor / metabolism*
  • Breast Neoplasms / diagnosis
  • Breast Neoplasms / genetics
  • Breast Neoplasms / metabolism*
  • Carcinoma, Intraductal, Noninfiltrating / diagnosis
  • Carcinoma, Intraductal, Noninfiltrating / genetics
  • Carcinoma, Intraductal, Noninfiltrating / metabolism*
  • Carrier Proteins / genetics
  • Carrier Proteins / metabolism*
  • ErbB Receptors / genetics
  • ErbB Receptors / metabolism*
  • Female
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Immunohistochemistry
  • Intracellular Signaling Peptides and Proteins
  • Neoplasm Proteins / genetics
  • Neoplasm Proteins / metabolism*
  • Prognosis
  • Receptor, ErbB-2 / genetics
  • Receptor, ErbB-2 / metabolism*
  • Tumor Suppressor Protein p53 / genetics
  • Tumor Suppressor Protein p53 / metabolism*

Substances

  • Antibodies, Monoclonal
  • Biomarkers, Tumor
  • Carrier Proteins
  • HSAJ2425 protein, human
  • Intracellular Signaling Peptides and Proteins
  • Neoplasm Proteins
  • Tumor Suppressor Protein p53
  • ErbB Receptors
  • Receptor, ErbB-2