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:: Volume 28, Issue 4 (10-2020) ::
Journal of Ilam University of Medical Sciences 2020, 28(4): 66-78 Back to browse issues page
Investigation of Expression and Methylation Status of ELF5 Gene Promoter in Patients with Breast Cancer
Azar Heidarizadi1 , Mahdieh Salimi * 2, Hossein Mozdarani3
1- Dept of Genetics, Fars Science and Research Branch, Islamic Azad University, Marvdasht, Iran
2- Dept of Medical Genetics, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran , salimi@nigeb.ac.ir
3- Dept of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
Abstract:   (2462 Views)
Introduction: Breast cancer is the most prevalent cancer among Iranian women. ELF5 gene as a transcription factor member of the ETS family could play a key role in breast cancer neoplasms, especially basal-like and endocrine-resistant subtypes. The changes in the gene promoter methylation pattern are considered proper targets in the therapeutic strategies. This study aimed to investigate the frequency of this epigenetic phenomenon and ELF5 gene expression as well as their association with pathologic and clinical characteristics of Iranian patients suffering from this cancer.
Materials & Methods: In order to investigate the ELF5 promoter methylation, 134 breast tissues were analyzed using methylation-specific PCR method. Moreover, 164 tumoral and 10 normal breast tissues retrieved from breast reduction surgery were assessed using Real-Time RT-PCR to analyze the gene expression.
Ethics code: 52d/4922, 6.10.2016
Findings: The data revealed that about 70% of the breast cancer tumoral specimens showed ELF5 promoter methylated pattern. Furthermore, the down-regulation of ELF5 gene expression was significantly associated with higher cancer stages, being triple-negative, and invasion.
Discussions & Conclusions: The results revealed that an increase in the ELF5 promoter methylation frequency in patients, compared to the control tissues, and its association with poor prognosis indicators may propose the ELF5 promoter methylation as a possible candidate in further studies to confirm the poor prognostic role of this biomarker in breast cancer.
Keywords: Breast neoplasms, ELF5, Epigenetics, Gene expression, Methylation
Full-Text [PDF 734 kb]   (1385 Downloads)    
Type of Study: Research | Subject: Molecular Genetics
Received: 2019/09/15 | Accepted: 2020/04/14 | Published: 2020/10/31
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Ethics code: 52d/4922, 6.10.2016

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Heidarizadi A, Salimi M, Mozdarani H. Investigation of Expression and Methylation Status of ELF5 Gene Promoter in Patients with Breast Cancer. J. Ilam Uni. Med. Sci. 2020; 28 (4) :66-78
URL: http://sjimu.medilam.ac.ir/article-1-6003-en.html

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Volume 28, Issue 4 (10-2020) Back to browse issues page
مجله دانشگاه علوم پزشکی ایلام Journal of Ilam University of Medical Sciences
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