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Pax2 Expression Is Correlated With Better Survival in Tamoxifen-Treated Breast Carcinoma Patients Publisher Pubmed



Jahangiri R1 ; Mosaffa F2, 3 ; Gharib M4 ; Emami Razavi AN5 ; Abdirad A6 ; Jamialahmadi K1, 2
Authors
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Authors Affiliations
  1. 1. Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
  2. 2. Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
  3. 3. Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
  4. 4. Department of Pathology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
  5. 5. Iran National Tumor Bank, Cancer Biology Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Department of Pathology, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran

Source: Tissue and Cell Published:2018


Abstract

PAX2 (paired box gene 2) is a transcription factor, which is involved in both cell proliferation and carcinogenesis. This study aimed to investigate PAX2 expression in tamoxifen resistant (TAM-R) and tamoxifen sensitive (TAM-S) breast carcinoma patients and analyze its correlation with clinicopathological characteristics and survival. Immunohistochemical analysis was performed to evaluate PAX2 protein expression in 36 TAM-R and 36 TAM-S formalin-fixed paraffin-embedded (FFPE) breast tumor tissues. Data analysis indicated that PAX2 expression was significantly higher in TAM-S group in comparison to TAM-R (P = 0.014). Overexpression of PAX2 was significantly correlated with perineural invasion (PNI) (P = 0.025). Kaplan–Meier survival analysis showed significant association between high expression of PAX2 and better disease-free survival (P < 0.001) and also overall survival (P = 0.031). Multivariate cox regression analysis demonstrated that patients with increased expression of PAX2 have a trend toward improved disease free survival (OR = 0.065, 95% CI: 0.009–0.476; P = 0.007) and overall survival (OR = 0.147, 95% CI: 0.020-1.105; P = 0.062). Our data suggested that high expression of PAX2 could be associated with better survival in estrogen receptor positive tamoxifen-treated breast carcinoma patients. © 2018 Elsevier Ltd