Integrative analysis regarding the correlation between GAS2 family genes and human glioma prognosis

作者：Chunyan Zhao, Nan Zhang, Xiaoteng Cui, Xinxin Zhang, Yuanyuan Ren, Chao Su, Jinyan He, Wei Zhang, Xiaoming Sun, Jie Yang, Xingjie Gao · 发表于：Cancer Medicine · 年份：2021 · DOI：10.1002/cam4.3829 · 被引用次数：45 · 研究领域：Glioma Diagnosis and Treatment、Hereditary Neurological Disorders、Ferroptosis and cancer prognosis

BACKGROUND: Emerging oncogenes were reportedly linked to the complicated subtypes and pathogenesis of clinical gliomas. Herein, we first comprehensively explored the potential correlation between growth-arrest-specific two family genes (GAS2, GAS2L1, GAS2L2, GAS2L3) and gliomas by bioinformatics analysis and cellular experiments. METHODS: Based on the available datasets of TCGA (The Cancer Genome Atlas), CGGA (Chinese Glioma Genome Atlas), and Oncomine databases, we performed a series of analyses, such as gene expression, survival prognosis, DNA methylation, immune infiltration, and partner enrichment. We also utilized two glioma cell lines to conduct the colony formation and wound-healing assay. RESULTS: GAS2L3 gene was highly expressed in glioma tissues compared to normal brain tissues (p < 0.05). We further observed the relationship between the high expressed GAS2L3 and poor clinical prognosis of brain low-grade glioma (LGG) cases in our Cox proportional hazard model (hazard ratio [HR] = 0.1715, p < 0.001). Moreover, DNA hypomethylation status of GAS2L3 was correlated with the high expression of GAS2L3 in LGG tissues and the poor clinical prognosis of primary glioma cases (p < 0.05). We also found that the high expression of GAS2L3 was associated with the infiltration level of immune cells, especially the T cells (p < 0.0001). Functional enrichment analysis of GAS2L3-correlated genes and interaction partners further indicated that GAS2L3 might take part in the occurrence o...