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GPX8 as a Novel Prognostic Factor and Potential Therapeutic Target in Primary Glioma.


ABSTRACT: One of the most prevalent malignant primary brain tumors is primary glioma. Although glutathione peroxidase 8 (GPX8) is intimately associated with carcinogenesis, its function in primary gliomas has not yet been thoroughly understood. Here, we leveraged Chinese Glioma Genome Atlas (CGGA), The Cancer Genome Atlas (TCGA), and Genotype-Tissue Expression (GTEx) database to investigate the association between GPX8 and overall survival (OS) of patients with primary gliomas, and our results showed that GPX8 expression was negatively correlated with OS. Moreover, the expression of GPX8 is significantly lower in normal tissue when compared to glioma tissue. According to results of univariate and multivariate analysis from CGGA using R studio, GPX8 is a valuable primary glioma prognostic indicator. Interestingly, high GPX8 expression is correlated positively with the hedgehog and kras signaling pathways and negatively with G2 checkpoint, apoptosis, reactive oxygen species (ROS) pathway, and interferon gamma pathway, which could be beneficial for the proliferation of glioma cells. Furthermore, GPX8 knockdown caused G1 cell cycle arrest, increased cell death, and reduced colony formation in U87MG and U118MG cells. In conclusion, GPX8 is a promising therapeutic target and meaningful prognostic biomarker of primary glioma.

SUBMITTER: Yang ZS 

PROVIDER: S-EPMC9427289 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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GPX8 as a Novel Prognostic Factor and Potential Therapeutic Target in Primary Glioma.

Yang Zhao-Shou ZS   Yang Qin Q   Sun Xiao-Xiao XX   Xiong Kui K   Zhu Xiao-Ting XT   Wang Yi-Chen YC   Ren Qian-Yao QY   Wu Guo-Hui GH   Wang Shi-Min SM   Cao Xu-Qin XQ   Yang Xiao-Rong XR   Jiang Wen-Gong WG  

Journal of immunology research 20220823


One of the most prevalent malignant primary brain tumors is primary glioma. Although glutathione peroxidase 8 (GPX8) is intimately associated with carcinogenesis, its function in primary gliomas has not yet been thoroughly understood. Here, we leveraged Chinese Glioma Genome Atlas (CGGA), The Cancer Genome Atlas (TCGA), and Genotype-Tissue Expression (GTEx) database to investigate the association between GPX8 and overall survival (OS) of patients with primary gliomas, and our results showed that  ...[more]

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