Journal
JOURNAL OF CLINICAL LABORATORY ANALYSIS
Volume 32, Issue 7, Pages -Publisher
WILEY
DOI: 10.1002/jcla.22454
Keywords
apoptosis; glioblastoma; hsa_circ_0008344; invasion; proliferation
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Funding
- Program for Academic Leaders of Shanghai [043]
- National Natural Science Foundation of China [81572501]
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BackgroundRecent studies have found circular RNAs (circRNAs) involved in the biological process of cancers. However, little is known about their functional roles in glioblastoma. MethodsHuman circRNA microarray analysis was performed to screen the expression profile of circRNAs in IDH1 wild-type glioblastoma tissue. The expression of hsa_circ_0008344 in glioblastoma and normal brain samples was quantified by qRT-PCR. Functional experiments were performed to investigate the biological functions of hsa_circ_0008344, including MTT assay, colony formation assay, transwell assay, and cell apoptosis assay. ResultsCircRNA microarray revealed a total of 417 abnormally expressed circRNAs (>1.5-fold, P<.05) in glioblastoma tissue compared with the adjacent normal brain. Hsa_circ_0008344, among the top differentially expressed circRNAs, was significantly upregulated in IDH1 wild-type glioblastoma. Further in vitro studies showed that knockdown of hsa_circ_0008344 suppressed glioblastoma cell proliferation, colony formation, migration, and invasion, but increased cell apoptotic rate. ConclusionsHsa_circ_0008344 is upregulated in glioblastoma and may contribute to the progression of this malignancy.
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