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  • Title: STAT3-induced upregulation of lncRNA ABHD11-AS1 promotes tumour progression in papillary thyroid carcinoma by regulating miR-1301-3p/STAT3 axis and PI3K/AKT signalling pathway.
    Author: Wen J, Wang H, Dong T, Gan P, Fang H, Wu S, Li J, Zhang Y, Du R, Zhu Q.
    Journal: Cell Prolif; 2019 Mar; 52(2):e12569. PubMed ID: 30657221.
    Abstract:
    OBJECTIVES: Emerging evidences indicated the importance of long non-coding RNAs (lncRNAs) in the tumorigenesis and deterioration of malignant tumours. To our knowledge, the study about lncRNAs in papillary thyroid carcinoma (PTC) is still inadequate. ABHD11-AS1 was highly expressed in the PTC samples of The Cancer Genome Atlas database. This study focused on the biological function and mechanism of lncRNA ABHD11-AS1 in PTC. MATERIALS AND METHODS: qRT-PCR analysis was used to examine the expression of ABHD11-AS1 in PTC tissues and cell lines. The prognostic significance of ABHD11-AS1 for the patients with PTC was analysed with Kaplan-Meier analysis. The effects of ABHD11-AS1 knockdown on the cell proliferation and metastasis were evaluated by in vitro functional assays and in vivo experiments. The molecular mechanism which contributed to the oncogenic role of ABHD11-AS1 in PTC was explored by conducting mechanism experiments. Rescue assays were carried out for final demonstration. RESULTS: High expression of ABHD11-AS1 predicted poor prognosis for patients with PTC and promoted cell proliferation and metastasis in vitro and in vivo. ABHD11-AS1 was activated by the transcription factor STAT3. ABHD11-AS1 positively regulated PI3K/AKT signalling pathway. ABHD11-AS1 acted as a competitive endogenous (ce) RNA to upregulate STAT3 by sponging miR-1301-3p. CONCLUSIONS: STAT3-induced lncRNA ABHD11-AS1 promoted PTC progression by regulating PI3K/AKT signalling pathway and miR-1301-3p/STAT3 axis.
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