Basic Information
Regular Relationship :
Tissue/Cell lineU87 And Ln229 Glioma Cells
SpecieHomo sapiens (human)
CitationJ Cell Biochem 2017 Dec 118, 4548-4557 doi:10.1002/jcb.26116 PMID:28475287
Reference title
lncRNA CCAT1 Promotes Glioma Tumorigenesis by Sponging miR-181b.
Experimental verification
luciferase reporter assays;qRT-PCR;Western blot assay
Functional description
An RNA interference approach was used to downregulate CCAT1 expression and we analyzed the underlying mechanism of CCAT1 by using bioinformatics analysis, CCK-8 assay, Transwell assay, flow cytometry, luciferase assay, RNA immunoprecipitation, real-time PCR, Western blot, and xenograft models. CCAT1 expression was significantly increased, while miR-181b decreased, in glioma tissues. Interestingly, miR-181b expression was negatively correlated with the CCAT1 level in glioma samples. Knockdown of CCAT1 notably suppressed proliferation, migration and the epithelial-mesenchymal transition (EMT) process, and promoted the apoptosis of U87 and LN229 glioma cells, which could be enhanced by transfection with miR-181b mimic while it was abolished by anti-miR-181b. Additionally, we found that CCAT1 may act as a competing endogenous RNA (ceRNA) for miR-181b, regulating the de-repression of FGFR3 and PDGFRa.
Annotations
External Annotation for CCAT1 |
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LncRNA-associated competing triplets and functions. |
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Comprehensive experimentally supported associations between lncRNA and human cancer. |
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Infer genomic variations that disturb lncRNA-associated ceRNA regulation.. |
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Provide and annotate disease or phenotype-associated variants in human long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs) or their regulatory elements. |
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Providing cellular-specific lncRNA-associated ceRNA networks predicted via high-throughput analysis of single-cell genomic data. |
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Information on all annotated and predicted human genes. |
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Gene nomenclature, gene families and associated resources (genomic, proteomic, phenotypic information). |
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Genome browser for vertebrate genomes. |
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An annotated collection of all publicly available DNA sequences. |
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A wiki-based platform for community curation of human long non-coding RNAs. |
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An integrated knowledge database dedicated to non-coding RNAs. |
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An integrated database of human annotated lncRNA transcripts. |
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Comprehensive annotations of eukaryotic long non-coding RNAs. |
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Comprehensive experimentally supported associations between lncRNA and human cancer. |
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A comprehensive, authoritative compendium of human genes and genetic phenotypes. |
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The catalogue of somatic mutations in cancer. |
