Abstract:
:Circular RNA (circRNA), as a kind of novel identified non-coding RNA, has become the focus of attention for its vital physiological and pathological roles. However, the function and mechanism of circRNAs in the regulation of cancer progression are largely unknown. In the present study we found a circRNA termed circHMCU whose expression was associated with poor prognosis. It was upregulated in cell lines with high metastatic potential compared with its parental cell line and in breast cancer tissues compared with normal tissues. In vitro results proved that circHMCU could significantly promote proliferation, migration, and invasion abilities of breast cancer cells via affecting the G1 phase cell cycle checkpoint and the epithelial-mesenchymal transition (EMT) pathway. Further in vivo studies showed that overexpression of circHMCU contributed to rapid proliferation and lung metastasis of breast cancer. For determination of the mechanisms, bioinformatics analysis revealed two complementary sequences within circHMCU for let-7 microRNAs, which was validated by a luciferase reporter assay. Finally, let-7 microRNAs could rescue the functions of circHMCU in breast cancer via suppressing the expression of MCY, HMGA2, and CCND1. Taken together, our findings demonstrated that circHMCU exerted oncogenic functions in breast cancer and could be a used as a novel biomarker in the diagnosis and prognosis of breast cancer.
journal_name
Mol Ther Nucleic Acidsjournal_title
Molecular therapy. Nucleic acidsauthors
Song X,Liang Y,Sang Y,Li Y,Zhang H,Chen B,Du L,Liu Y,Wang L,Zhao W,Ma T,Wang C,Yang Qdoi
10.1016/j.omtn.2020.03.014subject
Has Abstractpub_date
2020-06-05 00:00:00pages
518-533issn
2162-2531pii
S2162-2531(20)30105-0journal_volume
20pub_type
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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journal_title:Molecular therapy. Nucleic acids
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journal_title:Molecular therapy. Nucleic acids
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2019-06-07 00:00:00
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
doi:10.1016/j.omtn.2019.12.034
更新日期:2020-03-06 00:00:00
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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journal_title:Molecular therapy. Nucleic acids
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
doi:10.1016/j.omtn.2018.06.006
更新日期:2018-09-07 00:00:00
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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