RETRACTED: Long Noncoding RNA FER1L4 Suppresses Tumorigenesis by Regulating the Expression of PTEN Targeting miR-18a-5p in Osteosarcoma (Retracted article. See vol. 55, pg. 515, 2021)

被引：43

作者：

Fei, Dan ^{[1
]}

Zhang, Xiaona ^{[2
]}

Liu, Jinxiang ^{[3
]}

Tan, Long ^{[1
]}

Xing, Jie ^{[1
]}

Zhao, Dongxu ^{[4
]}

Zhang, Yang ^{[5
]}

机构：

[1] Jilin Univ, China Japan Union Hosp, Dept Ultrasonog, Changchun, Jilin, Peoples R China

[2] Jilin Univ, Hosp 1, Dept Anesthesiol, Changchun, Jilin, Peoples R China

[3] Jilin Univ, Hosp 1, Dept Pediat, Changchun, Jilin, Peoples R China

[4] Jilin Univ, China Japan Union Hosp, Dept Orthopaed Surg, Changchun 130033, Jilin, Peoples R China

[5] Jilin Univ, Hosp 1, Dept Neurosurg, Changchun 130033, Jilin, Peoples R China

来源：

CELLULAR PHYSIOLOGY AND BIOCHEMISTRY | 2018年 / 51卷 / 03期

关键词：

Long non-coding RNA; FERIL4; PTEN; miR-18a-5p; Osteosarcoma; CELL-PROLIFERATION; MIR-17-92; CLUSTER; DOWN-REGULATION; UP-REGULATION; CANCER; PROGNOSIS; MIR-106A-5P; PROGRESSION; INCREASES; INVASION;

D O I：

10.1159/000495554

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Background/Aims: Novel long non-coding RNA Fer-1-like protein 4 (FER1L4) has been reported to play crucial regulatory roles in tumor progression. However, its clinical significance and biological role in osteosarcoma (OS) is completely unknown. The aim of the present study was to investigate the role of FER1L4 in OS progression and the underlying mechanism. Methods: We analyzed the expression levels of FER1L4 in tissues of OS patients and cell lines via quantitative RT-PCR (qRT-PCR). The effect of FER1L4 on cell proliferation, colony formation, migration and invasion was analyzed by cell counting kit-8 (CCK-8), colony formation, wound healing and transwell invasion assay, respectively. Novel targets of FER1L4 were selected through a bioinformatics soft and confirmed using a dual-luciferase reporter system and qRT-PCR. To detect the role of FER1L4 in vivo tumorigenesis, tumor xenografts were created. Results: We found that the expression of FER1L4 was significantly downregulated in OS tissues and cell lines; moreover, low expression of FER1L4 was associated with advanced tumornude-metastasis (TNM) stage, lymph node metastases, and poor overall survival. Functional assays showed that upregulation of FER1L4 significantly inhibited OS cell proliferation, colony formation, migration, and invasion in vitro, as well as suppressed tumor growth in vivo. Assays performed to determine the underlying mechanism, indicated that FER1L4 interacted directly with miR-18a-5p. Subsequently, we found that FER1L4 significantly increased PTEN expression, a known target of miR-18a-5p, in OS cells. Furthermore, PTEN was found to be down-regulated, and positively correlated with FER1L4 in OS tissues. Conclusion: These findings suggest that FER1L4, acting as a competing endogenous RNA (ceRNA) of miR-18a-5p, exerts its anti-cancer role by modulating the expression of PTEN. Thus, FER1L4 may be a novel target for the prevention and treatment of OS. (C) 2018 The Author(s) Published by S. Karger AG, Basel

引用

页码：1364 / 1375

页数：12

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