Basic Information
Regular Relationship :
Phenotype/DiseaseSpeciePancreatic Cancer
CeRNA1MALAT1[LncRNA]
miRNAmiR-217[miRNA]
CeRNA2MAPK[mRNA]
Tissue/Cell linePanc-1, Aspc-1, Mia Paca-2 And Bxpc-3
SpecieHomo sapiens (human)
CitationSci Rep 2017 Jul 12 7, 5186 doi:10.1038/s41598-017-05274-4 PMID:28701723
Reference title
The lncRNA MALAT1 acts as a competing endogenous RNA to regulate KRAS expression by sponging miR-217 in pancreatic ductal adenocarcinoma.
Experimental verification
qPCR,Luciferase report assay etc.
Functional description
MALAT1 is expressed at higher levels in pancreatic ductal adenocarcinoma (PDAC) tissues than in nontumour tissues and in metastatic PDAC than in localized tumours. Plasma levels of MALAT1-derived fragments are significantly elevated in patients with prostate cancer compared with those without prostate cance. MALAT1 regulates KRAS expression by influencing the spatial distribution of miR-217. MALAT1 inhibits the translocation of miR-217 from the nucleus to the cytoplasm. Patients with PDAC and high MALAT1 expression levels have shorter overall survival than patients with PDAC and low MALAT1 expression levels. Resistance to KRAS inhibition has been observed experimentally in studies regarding pancreatic cancer treatment34; thus, targeting MALAT1 may be another way to achieve KRAS/MAPK pathway inactivation.
Annotations
External Annotation for MALAT1 |
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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. |
