Overexpression of long non-coding RNA SOX2OT promotes esophageal squamous cell carcinoma growth

Cancer Cell International
Yuanyuan WuYun Bai

Abstract

SOX2 overlapping transcript (SOX2OT) has been reported to be an important lncRNA in various cancers. SOX2 is embedded in an intron of the SOX2OT gene. But the role of SOX2OT in esophageal squamous cell carcinoma (ESCC) and the association between SOX2OT and SOX2 remain unclear. Quantitative PCR (qPCR) was used to detect the expression of SOX2OT and SOX2 in ESCC tissues and cells. The isoforms of SOX2OT were identified by PCR and confirmed by sequencing. CCK-8 and Edu assays were performed to investigate the effects of SOX2OT on cell growth. The relationship between SOX2OT and SOX2 was explored by luciferase reporter assay. Both SOX2OT and SOX2 were upregulated in ESCC tissues and cells. SOX2OT expression was positively associated with SOX2 expression in ESCC tissues. NR_004053 was one of the major SOX2OT transcripts aberrantly expressed in ESCC tissues and cells. Overexpression of SOX2OT (NR_004053) promoted ESCC cell growth, antagonized the effect of DDP and increased cell proliferation ratio. Ectopic expression of SOX2 could increase the luciferase activity of SOX2OT-pGL3/Basic and SOX2OT expression, while overexpression of SOX2OT (NR_004053) had no effect on SOX2 expression. Our study demonstrates that the major isoform of S...Continue Reading

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Citations

Sep 15, 2018·Molecular Oncology·Yulan DengXia Li
May 3, 2019·Journal of Cellular Biochemistry·Youwei ZhangSanyuan Sun
Jan 8, 2020·International Journal of Molecular Sciences·Qingqing FengYan-Dong Wang
Sep 10, 2020·Frontiers in Oncology·Min WeiHuimin Zhu
Feb 20, 2021·Cancer Communications·Wenhua XueQuancheng Kan

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Methods Mentioned

BETA
PCR
Assay
electrophoresis

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