Abstract:
BACKGROUND:As novel biomarkers for various cancers, microRNAs negatively regulate genes expression via promoting mRNA degradation and suppressing mRNA translation. miR-589 has been reported to be deregulated in several human cancer types. However, its biological role has not been functionally characterized in gastric cancer. Here, we aim to investigate the biological effect of miR-589 on gastric cancer and to reveal the possible mechanism. METHODS:Real-time PCR was performed to evaluate the expression of miR-589 in 34 paired normal and stomach tumor specimens, as well as gastric cell lines. Functional assays, such as wound healing, transwell assays and in vivo assays, were used to detect the biological effect of miR-589 and LIFR. We determined the role of miR-589 in gastric cancer tumorigenesis in vivo using xenograft nude models. Dual-luciferase report assays and Chromatin immunoprecipitation (ChIP) assay were performed for target evaluation, and the relationships were confirmed by western blot assay. RESULT:MiR-589 expression was significantly higher in tumor tissues and gastric cancer cells than those in matched normal tissues and gastric epithelial cells, respectively. Clinically, overexpression of miR-589 is associated with tumor metastasis, invasion and poor prognosis of GC patients. Gain- and loss-of function experiments showed that miR-589 promoted cell migration, metastasis and invasion in vitro and lung metastasis in vivo. Mechanistically, we found that miR-589 directly targeted LIFR to activate PI3K/AKT/c-Jun signaling. Meanwhile, c-Jun bound to the promoter region of miR-589 and activated its transcription. Thus miR-589 regulated its expression in a feedback loop that promoted cell migration, metastasis and invasion. CONCLUSION:Our study identified miR-589, as an oncogene, markedly induced cell metastasis and invasion via an atypical miR-589-LIFR-PI3K/AKT-c-Jun feedback loop, which suggested miR-589 as a potential biomarker and/or therapeutic target for the gastric cancer management.
journal_name
J Exp Clin Cancer Resjournal_title
Journal of experimental & clinical cancer research : CRauthors
Zhang F,Li K,Pan M,Li W,Wu J,Li M,Zhao L,Wang Hdoi
10.1186/s13046-018-0821-4subject
Has Abstractpub_date
2018-07-16 00:00:00pages
152issue
1eissn
0392-9078issn
1756-9966pii
10.1186/s13046-018-0821-4journal_volume
37pub_type
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journal_title:Journal of experimental & clinical cancer research : CR
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doi:10.1186/s13046-017-0548-7
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章,评审
doi:
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abstract:BACKGROUND:Colorectal cancer (CRC) is one of the frequently occurred malignancies in the world. To date, several onco-microRNAs (miRNAs or miRs), including miR-96, have been identified in the pathogenesis of CRC. In the present study, we aimed to corroborate the oncogenic effect of miR-96 on CRC and to identify the spe...
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journal_title:Journal of experimental & clinical cancer research : CR
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abstract:BACKGROUND:MicroRNAs (miRNAs) posttranscriptionally regulate gene expression and thereby contribute to the modulation of numerous complex and disease-relevant cellular processes, including cell proliferation, cell motility, apoptosis and stress response. miRNA-31-5p is encoded on a genomic fragile site, 9p21.3, which i...
journal_title:Journal of experimental & clinical cancer research : CR
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abstract::Occult carcinoma cells in peripheral blood of breast cancer (BC) patients is generally associated with poor disease prognosis. Reverse transcriptase-polymerase chain reaction (RT-PCR) is a sensitive method for revealing rare circulating cancer cells. The target mRNA must be carefully chosen, as it must be expressed on...
journal_title:Journal of experimental & clinical cancer research : CR
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journal_title:Journal of experimental & clinical cancer research : CR
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doi:10.1186/s13046-015-0236-4
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journal_title:Journal of experimental & clinical cancer research : CR
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更新日期:2002-12-01 00:00:00
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journal_title:Journal of experimental & clinical cancer research : CR
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journal_title:Journal of experimental & clinical cancer research : CR
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journal_title:Journal of experimental & clinical cancer research : CR
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journal_title:Journal of experimental & clinical cancer research : CR
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doi:10.1186/s13046-019-1490-7
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journal_title:Journal of experimental & clinical cancer research : CR
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更新日期:1997-09-01 00:00:00
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-019-1205-0
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-019-1296-7
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journal_title:Journal of experimental & clinical cancer research : CR
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journal_title:Journal of experimental & clinical cancer research : CR
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journal_title:Journal of experimental & clinical cancer research : CR
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pub_type: 杂志文章,评审
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章,评审
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更新日期:2016-12-05 00:00:00
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-019-1161-8
更新日期:2019-04-08 00:00:00
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-018-0773-8
更新日期:2018-05-11 00:00:00
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/1756-9966-28-55
更新日期:2009-04-26 00:00:00
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/s13046-019-1406-6
更新日期:2019-10-29 00:00:00
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
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更新日期:2000-12-01 00:00:00
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 已发布勘误,撤回出版物
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更新日期:2020-11-05 00:00:00
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journal_title:Journal of experimental & clinical cancer research : CR
pub_type: 杂志文章
doi:10.1186/1756-9966-33-13
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