The Prognostication Potential of Brca Genes Expression in Gliomas: A Genetic Survival Analysis Study Publisher Pubmed



Meimand SE^{1, 2} ; Pourrashidi A⁴ ; Shahrbabak MM⁶ ; Mohammadi E^{3, 5} ; Meimand FE⁷ ; Rezaei N^{1, 2, 8}
Source: World Neurosurgery Published:2022

Abstract

Background: Gliomas are the most common type of central nervous system tumor in adults, and they have an extremely poor prognosis. Gliomas are classified into 4 grades, with low-grade gliomas (LGGs) constituting grades I and II and glioblastoma multiforme (GBM) constituting grade IV. Breast cancer susceptibility genes BRCA1 and BRCA2 play a role in DNA repair and are required for genome stability. Methods: We analyzed the LGG and GBM cohorts from The Cancer Genome Atlas. We used Kaplan-Meier and log-rank analysis to determine the relationship between BRCA1 and BRCA2 expression and survival. Results: Correlation of BRCA1 and BRCA2 expression with survival in patients with LGG was significant (P = 0.00 and P = 0.00). The higher the levels of expression were, the lower survival rates were in both LGG and GBM cohorts, but the correlation was not significant in patients with GBM (P < 0.01). Conclusions: Our findings suggest that BRCA1 and BRCA2 can be regarded as poor prognostic factors in patients with glioma, with greater significance in patients with LGG. In the future, more in-depth experiments will enable us to elucidate the mechanism of gliomagenesis and identify potential gene therapy targets. © 2021 Elsevier Inc.