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UBE2R2-AS1 Inhibits Xenograft Growth in Nude Mice and Correlates with a Positive Prognosis in GliomaXu, Wu; Che, Dan-dan; Chen, Liang; Lv, Sheng-qing; Su, Jun; Tan, Jun; Liu, Qing; Pan, Ya-wen
Journal of molecular neuroscience, 08/2021, Volume: 71, Issue: 8Journal Article
Our previous study showed that the lncRNA UBE2R2-AS1 inhibits the growth and invasion of glioma cells and promotes apoptosis through the miR-877-3p/TLR4 pathway. In this study, it was further found that the expression of UBE2R2-AS1 in glioma tissues was decreased significantly, and gradually decreased with increasing clinical stage. Chi-square analysis showed that the expression of UBE2R2-AS1 was significantly correlated with the WHO stage of tumor and epilepsy. Using Kaplan–Meier univariate survival analysis, it was found that the expression of UBE2R2-AS1 correlated positively with the overall survival of patients with glioma, while multiple Cox regression analysis showed that the expression of UBE2R2-AS1 correlated positively with the overall survival of patients with glioma as a protective factor for glioma prognosis. The analysis of data from TCGA also showed that patients with high UBE2R2-AS1 levels or low miR-877-3p expression were more likely to have good survival outcomes. Further construction of a glioma xenograft model in nude mice showed that UBE2R2-AS1 overexpression inhibited the growth of tumors, and the inhibition of miR-877-3p expression had a similar effect. Simultaneous UBE2R2-AS1 overexpression and miR-877-3p inhibition further decreased the growth rate of tumors in nude mice. Taken together, the results of our study suggest that UBE2R2-AS1 is an important tumor suppressor gene in glioma, which may be a good marker and treatment target for the clinical detection of glioma.
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