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MYC-activated lncRNA HNF1A-AS1 overexpression facilitates glioma progression via cooperating with miR-32-5p/SOX4 axis.


ABSTRACT: Mounting literatures have revealed the crucial effects of long noncoding RNA (lncRNA) in various cancers, including glioma. HNF1A-AS1, a novel lncRNA, is reported to modulate tumorigenesis and development of multiple cancers. However, the tumorigenic function of lncRNA HNF1A-AS1 in glioma remains largely unknown. quantitative reverse transcription and polymerase chain reaction and western blot assays were applied to evaluate the expression of relevant mRNAs and proteins. 5-Ethynyl-2'- deoxyuridine, terminal deoxynucleotidyl transferase dUTP nick-end labeling, flow cytometry, and transwell assays were conducted for examining the influence of HNF1A-AS1 on glioma cell functions. The relationship among RNAs was investigated by mechanical experiments. The results demonstrated that HNF1A-AS1 was predominantly highly expressed in glioma cell lines compared with nontumor glial epithelial cell, which was associated with the stimulation of transcription factor myelocytomatosis oncogene. Knockdown of HNF1A-AS1 remarkably inhibited glioma cells proliferation, migration, and invasion, while accelerating cell apoptosis in vitro. Mechanically, HNF1A-AS1 served as a miR-32-5p sponge. Moreover, SOX4 was discovered as a target of miR-32-5p. Inhibited miR-32-5p or upregulated SOX4 could markedly counteract the inhibitory effects of silencing HNF1A-AS1 on glioma malignant biological behaviors. HNF1A-AS1 exerted oncogenic property in glioma progression via upregulating miR-32-5p-mediated SOX4 expression, suggesting potential novel therapeutic target for future glioma treatment.

SUBMITTER: Wu J 

PROVIDER: S-EPMC7476832 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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MYC-activated lncRNA HNF1A-AS1 overexpression facilitates glioma progression via cooperating with miR-32-5p/SOX4 axis.

Wu Jianheng J   Li Rong R   Li Linfan L   Gu Yimian Y   Zhan Hui H   Zhou Changbao C   Zhong Chuanhong C  

Cancer medicine 20200720 17


Mounting literatures have revealed the crucial effects of long noncoding RNA (lncRNA) in various cancers, including glioma. HNF1A-AS1, a novel lncRNA, is reported to modulate tumorigenesis and development of multiple cancers. However, the tumorigenic function of lncRNA HNF1A-AS1 in glioma remains largely unknown. quantitative reverse transcription and polymerase chain reaction and western blot assays were applied to evaluate the expression of relevant mRNAs and proteins. 5-Ethynyl-2'- deoxyuridi  ...[more]

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