Identification of a Tripartite Motif Family Gene Signature for Predicting the Prognosis of Patients with Glioma
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Methods: The gene expression RNA-Seq data and corresponding clinical information of glioma patients were obtained from The Cancer Genome Atlas (TCGA) dataset and the Chinese Glioma Genome Atlas (CGGA) dataset. LASSO regression and multivariate Cox regression analyses were performed to construct a risk signature of the TRIM family genes. The accuracy of the risk signature in predicting the prognosis of glioma patients was evaluated. The effects of on glioma cell proliferation were further explored.
Results: We constructed a prognostic signature based on eight TRIMs for the prediction of overall survival of glioma patients. Internal and external cohorts confirmed the satisfactory accuracy and generalizability of the signature in predicting the prognosis of glioma patients. Of the eight TRIMs, was significantly downregulated in glioma, and decreased with an increase in the tumor grade. Moreover, low expression of predicted poor prognosis in glioma. CCK-8 and colony formation assays indicated that overexpression significantly inhibited cell proliferation. Conversely, silencing of had the opposite effects.
Conclusion: Our eight-gene signature based on the TRIM gene family is a novel and clinically useful biomarker, which may be helpful for clinical decision-making. Additionally, might be a therapeutic target for glioma.
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