lncRNA MAGI2-AS3 Exerts Antioncogenic Roles in Hepatocellular Carcinoma via Regulating the miR-519c-3p/TXNIP Axis

被引:6
|
作者
Wei, Huamei [1 ]
Tang, Qianli [2 ]
Wang, Anmin [3 ]
Zhang, Ya [3 ]
Qin, Zebang [3 ]
Li, Wenchuan [2 ]
Xu, Zuoming [2 ]
Wang, Jianchu [2 ]
Pu, Jian [2 ]
机构
[1] Youjiang Med Univ Nationalities, Affiliated Hosp, Dept Pathol, Baise 533000, Guangxi, Peoples R China
[2] Youjiang Med Univ Nationalities, Affiliated Hosp, Dept Hepatobiliary Surg, Baise 533000, Guangxi, Peoples R China
[3] Youjiang Med Univ Nationalities, Grad Coll, Baise 533000, Guangxi, Peoples R China
关键词
CANCER;
D O I
10.1155/2021/5547345
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Introduction. Our work was aimed to explore the mechanisms of MAGI2 antisense RNA 3 (MAGI2-AS3) in regulating hepatocellular carcinoma (HCC) carcinogenesis. Methods. MAGI2-AS3, microRNA-519c-3p (miR-519c-3p), and thioredoxin interacting protein (TXNIP) levels in HCC were detected by the RT-qPCR method. Cell proliferation and apoptosis rate were measured using Cell Counting Kit-8 assay and flow cytometry assay. Relationship between MAGI2-AS3, TXNIP, and miR-519c-3p were analyzed via luciferase activity assay, RNA pull-down assay, and RNA immunoprecipitation assay. Mouse xenograft models of HCC were conducted to explore the roles of MAGI2-AS3 in vivo. Results. MAGI2-AS3 levels were elevated, and miR-519c-3p decreased in HCC. MAGI2-AS3 overexpression inhibits while its knockdown stimulates HCC cell growth through miR-519c-3p. Moreover, miR-519c-3p overexpression stimulates HCC cell growth. MAGI2-AS3 serves as competing endogenous RNA (ceRNA) of miR-519c-3p to regulate TXNIP in HCC. And, TXNIP upregulation weakened the influence of MAGI2-AS3 knockdown on HCC cell behaviors. Additionally, MAGI2-AS3 overexpression suppressed HCC tumor growth in vivo. Conclusion. MAGI2-AS3 inhibits HCC tumorigenesis through miR-519c-3p/TXNIP axis in vitro and in vivo, indicating MAGI2-AS3 plays a crucial role in HCC development.
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页数:11
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