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- Title
LncRNA TUG1 promotes esophageal cancer development through regulating PLK1 expression by sponging miR-1294.
- Authors
Zong, Mingzhu; Feng, Wanting; Wan, Li; Yu, Xiaojuan; Yu, Weiyong
- Abstract
Objectives: Esophageal cancer is one of the malignant tumor with poor survival. The 5-year survival rate of esophageal cancer patients remains poor due to limited therapeutic options and the development of drug-resistance. Recent evidence suggests that long non-coding RNAs (lncRNAs) are involved in occurrence and development of tumor, however, the molecular mechanisms of lncRNA taurine-upregulated gene 1 (TUG1) in esophageal cancer remain unknown. Results: TUG1 was overexpressed in esophageal cancer tissues and cells. The knockdown of TUG1 repressed proliferation and invasion, while promoted apoptosis of esophageal cancer cells by negatively regulating miR-1294 expression. Furthermore, PLK1 was a target mRNA of miR-1294 in esophageal cancer cells. Therefore, the effects of PLK1 silencing on proliferation, apoptosis, and invasion of esophageal cancer cells could be overturned by silencing miR-1294. Additionally, TUG1 silencing inhibited growth of tumor cells in vivo. Conclusions: TUG1 was found as oncogenic gene in esophageal cancer. Mechanically, TUG1 attributed to esophageal cancer process by regulating miR-1294/ PLK1 axis.
- Subjects
ESOPHAGEAL cancer; NON-coding RNA; CANCER; APOPTOSIS; CANCER cells; GENE silencing
- Publication
Biotechnology Letters, 2020, Vol 42, Issue 12, p2537
- ISSN
0141-5492
- Publication type
Article
- DOI
10.1007/s10529-020-02984-0