year 18, Issue 1 (January - February 2024)                   Iran J Med Microbiol 2024, 18(1): 16-24 | Back to browse issues page


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Alipour A H, Najafi H, Ziafati Kafi Z, Hashemi S M A, Sarvari J, Ghalyanchi Langeroudi A. Exploring EBNA1-Mediated Regulation of Key Cellular Genes in Glioblastoma Multiforme: Implications for EBV-Associated Pathogenesis. Iran J Med Microbiol 2024; 18 (1) :16-24
URL: http://ijmm.ir/article-1-2250-en.html
1- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
2- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
3- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran , ghalyana@ut.ac.ir
Abstract:   (391 Views)

Background and Aim: Infection with Epstein-Barr virus (EBV) ranks as one of the most substantial risk factors associated with Glioblastoma multiforme (GBM). At the core of this intricate relationship lies the EBV nuclear antigen-1 (EBNA1) protein, a central figure with a remarkable ability to regulate the expression of both cellular and viral genes. This research delves into the impact of EBNA1 on the expression patterns of four cellular genes - MDMX, MDM2, MYC, and BIRC5 in the U87MG cell line.
Materials and Methods: We divided U87MG cells into two distinct groups. The first group involved cells that were transfected with a plasmid containing the EBNA1 gene, while the second group consisted of cells that were transfected with a control plasmid. To evaluate the transcriptional activity of MDMX, MDM2, MYC, and BIRC5 genes in both sets of cells, we employed a real-time PCR technique. Any observed differences were considered statistically significant if the associated P-values were less than 0.05.
Results: Our findings demonstrated a substantial three-fold increase in the expression of the MDMX gene when U87MG cells were transfected with EBNA1 plasmid (P=0.02). Although the cells transfected with EBNA1 plasmid displayed great elevations in the expression levels of MDM2, MYC, and BIRC5 genes, these alterations were not statistically significant.
Conclusion: The outcomes of this investigation have unveiled that EBNA1 has the ability to trigger the expression of four crucial cellular genes, which wield substantial influence in the genesis of GBM within glioblastoma astrocytoma cells. This underscores the potential impact of EBNA1 on the evolution of GBM, particularly in individuals harboring EBV.

Full-Text [PDF 609 kb]   (54 Downloads)    
Type of Study: Original Research Article | Subject: Medical Virology
Received: 2023/12/5 | Accepted: 2024/02/16 | ePublished: 2024/03/18

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