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Original Article
Expression of SCUBE2 and BCL2 Predicts Favorable Response in ERα Positive Breast Cancer
Rezvan Esmaeili
1, Samaneh Mohammadi
1, Narges Jafarbeik-Iravani
1, Fatemeh Yadegari
1, Asiieh Olfatbakhsh
2, Mahta Mazaheri
3, Ahmad Kaviani
4, Mahdi Rezaee
1,5, Keivan Majidzadeh-A
1*1 Genetics Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
2 Breast Diseases Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
3 Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
4 Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran
5 Seed and plant Certification and Registration Institute, Karaj, Iran
*Corresponding Author: *Corresponding Author: Keivan Majidzadeh-A, MD, MPH, PhD; Genetics Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, No 146, South Gandhi Ave, Vanak Sq., Tehran, Iran. Tel: +98-2188796003; Fax: +9821-88796208; Email: , Email:
kmajidzadeh@acecr.ac.ir
Abstract
Background: The study aimed at evaluating steroid biomarker genes (ERα, PGR, ERβ) and determining the expression level of estrogen-regulated genes (SCUB2 and BCL2) and growth factors receptors (HER2 and IGFR1) in cancer tissue samples obtained from Iranian patients with breast cancer. Moreover, relationships with clinicopathologic aspects of tumor and response to treatment were studied.
Methods: The current study was conducted on 246 breast tissue samples. The expression levels of these genes and their relationships with clinicopathologic aspects and treatment response were evaluated.
Results: Based on immunohistochemistry (IHC) results, 12% of the ER negative patients expressed ERα. Comparing the effects of ERα and coexpression of BCL2 and SCUBE2 on the survival of the patients demonstrated remarkably poorer survival in ERα positive, SCUBE2, and BCL2 negative groups in comparison with other patients, which was statistically significant in the log-rank analysis (P = 0.01). Evaluation of the effects of coexpression of HER2 and IGFR1 on patients’ survival demonstrated a worse survival rate in patients with positive expression of both receptors, which was insignificant.
Conclusion: Many studies suggest that PGR alone is not enough for the functional evaluation of ERα. Evaluation of the progesterone receptor expression as well as other genes such as BLC2, SCUBE2, and IGFR1, seems necessary to evaluate functionality.
Cite this article as: Esmaeili R, Mohammadi S, Jafarbeik-Iravani N, Yadegari F, Olfatbakhsh A, Mazaheri M, et al. Expression of SCUBE2 and BCL2 predicts favorable response in ERα positive breast cancer. Arch Iran Med. 2021;24(3):209–217. doi: 10.34172/ aim.2021.32.