Abstract:
:Menin displays either tumor suppression or promotion functions in a context-dependent manner. Previously, we proposed that Menin acts as a tumor suppressor by inhibiting cell growth in pancreatic ductal adenocarcinoma (PDAC), whereas the relationship between the Menin expression and overall survival rate of PDAC patients has not been completely elucidated, indicating the complexity of Menin functions in PDAC progression. Here, we identify Menin as a promoter of epithelial-mesenchymal transition (EMT), which is largely associated with cell migration or metastasis, with modest activity in cell growth inhibition. Ectopic expression of Menin suppresses the expression of CCAAT/enhancer-binding protein beta (CEBPB) and epithelial-specific genes by histone deacetylation and further enhances the TGF-β signaling-related EMT process. We also demonstrate that CCAAT/enhancer binding protein (C/EBP) beta (C/EBPβ; encoded by CEBPB) acts downstream of Menin and TGF-β signaling for balancing growth inhibition and EMT, and C/EBPβ overexpression could restore the anti-cancer functions of Menin in pancreatic cancer by cooperatively activating CDKN2A/B genes and antagonizing EMT processes. Taken together, our results suggest that Menin functions as an oncogene for cancer metastasis upon C/EBPβ depletion or acts as a tumor suppressor by cooperation with C/EBPβ to activate CDKN2A transcription.
journal_name
Mol Ther Nucleic Acidsjournal_title
Molecular therapy. Nucleic acidsauthors
Cheng P,Chen Y,He TL,Wang C,Guo SW,Hu H,Ni CM,Jin G,Zhang YJdoi
10.1016/j.omtn.2019.08.013subject
Has Abstractpub_date
2019-12-06 00:00:00pages
155-165issn
2162-2531pii
S2162-2531(19)30226-4journal_volume
18pub_type
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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
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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
doi:10.1016/j.omtn.2020.07.013
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
doi:10.1016/j.omtn.2020.07.002
更新日期:2020-09-04 00:00:00
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
doi:10.1038/mtna.2015.43
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章,评审
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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
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journal_title:Molecular therapy. Nucleic acids
pub_type: 杂志文章
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