Document Type : Short Communication
Department of Surgery, Islamic Azad University, Tehran Medical Sciences Branch, Tehran, Iran
Department of General, Visceral, and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
Department of Surgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Students' Research Committee, Islamic Azad University, Tehran Medical Sciences Branch, Tehran, Iran
Young Researchers and Elite Club, Islamic Azad University, Tehran Medical Sciences Branch, Tehran, Iran
Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
Introduction: Overexpression of Human Epidermal Growth factor Receptor-2 (HER-2) is one of the most important prognostic and predictive factors of breast cancer, observed in 25% - 30% of breast carcinoma patients leading to poor prognosis and feasible anti HER-2 antibody drugs. The objective of this study was to evaluate the HER-2 frequency in target population and its correlation with histologic grade as well as tumor pathology, estrogen receptor (ER) and P53 in our patients.
Methods: A total of 300 cases (all female) aged 24- 80 year, were randomly selected from patients who were admitted in two of the Tehran University of Medical Sciences affiliated centers (Emam Khomeini Cancer Institute and Shariati hospital) over a 2-year period (2013-2014). Assessment of tumors for HER-2, P53, ER, pathological type and histologic grade was performed. HER-2 over expression defined as three plus (+++) in immunohistochemistry (IHC).
Results: The mean age was 49.6±11 years. HER-2 over expression was seen in 34% of the patients. Significant correlations were found between HER-2+, P53+ and high histologic grade and ER (P<0.05). However, there was no significant correlation between HER-2 and pathologic type of tumors in our study.
Conclusion: Co-expression of several poor prognostic biomarkers in breast cancer (HER-2 +, P53 +, ER- , high grade) may predict more aggressive phenotype, worse disease and lower overall survival in these patients.