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Androgen Receptor Expression and Its Correlation With Clinicopathological Parameters in Iranian Patients With Triple Negative Breast Cancer Publisher



Naimi A1 ; Soltan M1 ; Amjadi E2 ; Goli P1 ; Kefayat A3
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Authors Affiliations
  1. 1. Department. of Pathology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department. of Pathology, Poursina Hakim Digestive Diseases Research Center, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Oncology, Cancer Prevention Research Center, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Iranian Journal of Pathology Published:2020


Abstract

Background & Objective: Our knowledge about correlation of androgen receptor expression and clinicopathological properties of triple-negative breast cancer (TNBC) patients is inadequate, particularly in the Iranian population. The main aim of the present study was to assess the AR expression in TNBC Iranian patients and evaluate its correlation with their clinicopathological parameters. Methods: Herein, 76 TNBC patients were evaluated for the AR expression by immunohistochemistry. The slides' staining intensity was investigated according to the average degree of nuclear staining and sub-classified into negative (0), weak (1), moderate (2), or strong (3). Subsequently, the positive cells percentage for each slide was assessed and sub-classified into <25% (1), 25-50% (2), 50-75% (3), and >75% (4). The aggregation of these two scores was used as the final score ranging from 0 to 7. While 4-7 scores were selected as positive, the others were included in the AR-negative expression group. Fisher's exact test was used to analyze the AR expression correlation with the clinicopathological parameters. Results: Positive immunoreactivity for AR was observed in 8 out of 76 (11%) specimens. No-correlation (P>0.05) was observed between the AR expression and grade, stage, lymph node status, and Ki-67 level. The AR-positive patients exhibited older age at the time of diagnosis (P=0.0339) and larger tumor size (P=0.0224) in comparison with the AR-negative patients. Low percentage of TNBC patients expressed AR and no significant correlation was observed between its expression and most of the clinicopathological parameters. Conclusion: AR may not be a suitable biomarker and treatment target for the Iranian patients with TNBC. © Iranian Society of Pathology. All rights reserved.
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