Abstract
With its highest mortality rate, the breast cancer outruns other gynecological cancers. For a long time, the breast cancer was associated with poor prognosis. But with the advent of analysis of expression level of different protein receptors (ER/PR and Her-2/neu) with the help of immunohistochemistry (IHC) has ushered us to a new era of treatment of cancer called immunotherapy.
Tissues sampled from 167 breast cancer patients at pathology labs of Mahavir Cancer Institute & Research Center, S S Hospital and Research Institute and NMCH, Patna, Bihar, India, were processed by a routine protocol.
Highest percentage of patients showed ER+/PR+ and least percentage of patients were characterized by ER+/PR− (p value <0.0001, hazard ratio, 95 % CI 2.537–21.603). A large number of patients (52.09 %) were classified under luminal C. Interestingly, 25.74 and 44.31 % of total patients aged within 30–50 tend to show ER−/PR− and Her-2/neu with p value <0.0081 (hazard ratio, 95 % CI 1.674–6.833) and 0.0313 (hazard ratio, 95 % CI 0.263–1.623), respectively.
The present endeavor was to classify the patients for their prognosis on the basis of hormonal and C-erb B2. The failure of the drug in ER−/PR− patients like tamoxifen is not a good sign to the oncologists. Herceptin on the other hand can play a good role in the treatment of greater percentage of patients showing Her-2/neu+. However, implementation of either new prognostic marker or more effective immunotherapy or both are warranted for effective treatment of breast cancer patients.
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Acknowledgments
Authors are thankful to the Indian Council of Medical Research, Government of India, for financial support. We also extend our thanks to Prof. N. Rajalaxmi, Director academics, Medical Council of India and Dr. Reena Sinha, Associate Proffessor, NMCH. We are also thankful to the Department of Oncology and Pathology, Mahavir Cancer Institute and Research Centre, Patna, S.S. Hospital and Research Institute, Patna and NMCH Patna for providing samples.
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All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008. Informed consent was obtained from all patients for being included in the study.
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Anshu, A.K., Nath, A., Prinyanka et al. Abnormal gene expression leads to poor prognosis in breast cancer patients in Bihar. Comp Clin Pathol 25, 763–768 (2016). https://doi.org/10.1007/s00580-016-2261-x
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DOI: https://doi.org/10.1007/s00580-016-2261-x