HER-2/neu Status: A Neglected Marker of Prognostication and Management of Breast Cancer Patients in India

Zubeda, Syeda; Kaipa, Prabhakar Rao; Shaik, Noor Ahmad; Mohiuddin, Mohammed Khaliq; Vaidya, Sireesha; Pavani, Boddana; Srinivasulu, Mukta; Latha, Manolla Madhavi; Hasan, Qurratulain

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저자정보: Zubeda, Syeda (Department of Genetics and Molecular Medicine, Vasavi Medical and Research Centre) Kaipa, Prabhakar Rao (Department of Genetics, Osmania University) Shaik, Noor Ahmad (Princess Al-Jawhara Centre of Excellence in Research of Hereditary Disorders, Department of Genetic Medicine, Faculty of Medicine, King Abdul Aziz University) Mohiuddin, Mohammed Khaliq (Department of Genetics and Molecular Medicine, Vasavi Medical and Research Centre) Vaidya, Sireesha (Department of Genetics and Molecular Medicine, Vasavi Medical and Research Centre) Pavani, Boddana (Department of Genetics and Molecular Medicine, Kamineni Hospitals) Srinivasulu, Mukta (Department of Surgical Oncology, Mehdi Nawaz Jung Hospital) Latha, Manolla Madhavi (Department of Genetics and Molecular Medicine, Vasavi Medical and Research Centre) Hasan, Qurratulain (Department of Genetics and Molecular Medicine, Vasavi Medical and Research Centre)

저널정보: 아시아태평양암예방학회 Asian Pacific journal of cancer prevention : APJCP Asian Pacific journal of cancer prevention : APJCP 제14권 제4호

발행연도: 2013.1

수록면: 2,231 - 2,235 (5page)

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Background: Categorizing breast tumors based on the ER, PR and HER/Neu 2 receptor status is necessary in order to predict outcome and assist in management of breast cancer. Herfe we assessed this question in South Indian patients. Materials and Methods: A total of 619 formalin fixed paraffin embedded breast tumor tissues were collected from pathology archives after receipt of ethical clearance. With the help of primary and secondary conjugated antibodies, expression status of ER, PR and HER2/neu was determined. All the experimental data were assessed for correlations with histopathological features of tumors and clinical presentation of the subjects. Results: In the present study, the ages ranged from 20-87 years with a mean of $50.0{\pm}12.q$ years, and majority of the tumors (84%) were of infiltrating duct cell carcinoma type. Assessment of ER, PR and Her-2/neu expression showed that 46% were triple negative. Interestingly, an inverse relation between ER, PR and HER-2/neu was apparent in 41.2% (p<0.0001) of the tumors, of which 24.5% (p<0.0001) were ER and PR co-negative but HER-2 positive. Conclusions: ER and PR positive tumors are less common (i.e<30%) compared to HER-2/neu positive tumors (i.e>50%) in Indian breast cancer patients, underlining the need for effective diagnostic screening and specific therapeutic managements in order to improve the survival rate of patients in low resource countries such as India.

#Breast cancer #receptor status #ER #PR #HER-2 #developing countries #India

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