Journal
WORLD NEUROSURGERY
Volume 148, Issue -, Pages E436-E449Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.wneu.2021.01.006
Keywords
Glioma; GSEA; Prognosis; TCGA; TRAF3IP3
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TRAF3IP3 is highly expressed in gliomas and associated with worse prognosis, suggesting it may serve as a potential biomarker for glioma prognosis.
BACKGROUND: Tumor necrosis factor receptor-related factor 3 (TRAF3) interacting protein 3 (TRAF3IP3) is involved in the development of immune tissues and the immune response of the body. Downregulated expression of TRAF3IP3 in malignant melanoma can inhibit tumor growth. The role of TRAF3IP3 in glioma is unknown. METHODS: We used the Wilcoxon rank sum test to compare the expression of TRAF3IP3 in glioma and normal tissues based on The Cancer Genome Atlas and Genotype Tissue Expression. Logistics regression was used to evaluate the relationship between TRAF3IP3 and clinicopathologic characters. Gene set enrichment analysis and single-sample gene set enrichment analysis were conducted to annotate biological function of TRAF3IP3. We used Kaplan-Meier and Cox regression to evaluate the prognostic value of TRAF3IP3. RESULTS: We downloaded RNA-seq data of 670 gliomas and 1157 normal tissues. TRAF3IP3 was highly expressed in gliomas (P < 0.001). High expression of TRAF3IP3 and higher World Health Organization grade (odds ratio [OR], 3.57 [2.42-5.34 CI]; P < 0.001), wild-type isocitrate dehydrogenase status (OR, 4.79 [3.40-6.83 CI]; P < 0.001), 1p/19q non-codeletion (OR, 15.32 [9.23-27.01 CI]; P < 0.001), mutant epidermal growth factor receptor status (OR, 2.77 [1.65-4.81 CI]; P < 0.001), worse histologic type (OR, 3.64 [2.48-5.43 CI]; P < 0.001) and worse primary therapy outcome (OR, 2.29 [1.47-3.61 CI]; P < 0.001) were significantly correlated. Six signaling pathways were significantly enriched in the TRAF3IP3 high-expression phenotype group, including JAK-STAT, interferon-gamma, apoptosis, P53, programmed cell death protein 1, and CTLA-4 (cytotoxic T-lymphocyte-associated protein 4). High expression of TRAF3IP3 was associated with worse progressionfree survival (hazard ratio [HR], 2.39 (1.39-3.01); P < 0.001), disease-free survival (HR, 3.02 (2.27-4.01); P < 0.001) and overall survival (HR, 2.87 (2.20-3.75); P < 0.001). CONCLUSIONS: TRAF3IP3 play an important role in the occurrence and development of glioma and may be a potential biomarker for the prognosis of glioma.
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