Cai Y, Wang M, Cui Y, Tan Z, Jiang Y. Differential Expression Profile of lncRNA in Glioma Cells and the Effect of lncRNA NKX3-1 on Glioma Cells Through Fem1b/SPDEF Pathway.
Front Oncol 2021;
11:706863. [PMID:
34350121 PMCID:
PMC8328487 DOI:
10.3389/fonc.2021.706863]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 06/28/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE
To investigate the differential expression of lncRNA in glioma cells, as well as the effect of lncRNA NKX3-1 on glioma cells.
METHODS
Glioma-related data were first downloaded from the TCGA database and analyzed using bioinformatics, after which the lncRNA NKX3-1 was chosen for further experiments. The expression of the lncRNA NKX3-1 in glioma tumor samples was detected using qRT-PCR. The subcellular localization of lncRNA NKX3-1 was determined using fluorescence in situ hybridization (FISH). CCK-8, flow cytometry, cell scratch, and transwell assays were used to detect cell proliferation, apoptosis, and invasion. The downstream pathway of lncRNA NKX3-1 was investigated using luciferase assays and detected using western blot, transwell, and cell scratch assays.
RESULTS
The differential expression profile of lncRNA in glioma was obtained. NKX3-1 lncRNA was found to be significantly increased in glioma tumor tissues. LncRNA NKX3-1 was found in the nucleus. Proliferation, invasion, and migration of glioma cells were significantly increased (P <0.05) in the lncRNA NKX3-1 overexpression group, while apoptosis ability was significantly decreased (P <0.05). Tumor volume and weight were significantly increased in the lncRNA NKX3-1 overexpression group in nude mice (P <0.05). LncRNA NKX3-1 significantly increased the luciferase activity of Fem1b 3'-UTR-WT reporter genes (P <0.05) as well as the levels of SPDEF protein (P <0.05). The protein level of FEM1B was significantly reduced. Cell invasion and migration were significantly increased (P <0.05) in the lncRNA NKX3-1 overexpression group plus SPDEF group.
CONCLUSION
We investigated the differential expression profile of lncRNAs in glioma and discovered that the lncRNA NKX3-1 plays an important role in cancer promotion via the Fem1b/SPDEF pathway.
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