[No authors listed]
Long noncoding RNAs (lncRNAs) have been acknowledged as significant regulators in the progression of various cancers, including malignant meningioma. Being a newly identified lncRNA, long intergenic non-protein coding RNA 702 (LINC00702) has not been comprehensively studied in malignant meningioma. In this study, the role of LINC00702 was identified and explored in malignant meningioma. The LINC00702 expression was determined in malignant meningioma tissues and cell lines by qRT-PCR. Then the association between LINC00702 expression and the prognosis of malignant meningioma patients was analyzed by Kaplan-Meier analysis. The functional role of LINC00702 in malignant meningioma cell proliferation and migration was analyzed by loss-of function assays. Subcellular fractionation assay and FISH assay revealed the cytoplasmic localization of LINC00702. Bioinformatics analysis and mechanism experiments demonstrated that LINC00702 acted as the molecular sponge of miR-4652-3p to upregulate ZEB1 in malignant meningioma. Furthermore, high level of LINC00702 was demonstrated to be associated with the activity of Wnt/β-catenin signaling. Moreover, miR-4652-3p and ZEB1 involved in LINC00702-mediated Wnt/β-catenin signaling. At last, rescue assays revealed that miR-4652-3p and ZEB1 attenuated LINC00702-mediated cell proliferation and migration.
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