ArticleMolecular biology reports2022
OCC-1D regulates Wnt signaling pathway: potential role of long noncoding RNA in colorectal cancer.
Article in Molecular biology reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors at 1 institution in 1 country.
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Abstract
backgroundAberrant activation of the Wnt signaling pathway is observed in most colorectal cancers (CRC). OCC-1D is a splice variant of OCC-1 gene which is considered as a long noncoding RNA (lncRNA) due to lacking the translational initiation codon of the gene. Here, we sought supporting evidence for the effects of OCC-1D on the Wnt pathway and cell cycle progression in CRC. METHODS AND
resultsTOP/FOPflash assay and qRT-PCR indicated that expression alterations of OCC-1D could change Wnt signaling activity in colon cancer cells. Consistently, immunocytochemistry results showed the effect of OCC-1D overexpression on nuclear localization of β-catenin proteins in SW480 cells. Flow cytometry, wound healing and MTT assay confirmed the cell cycle stimulatory effects of OCC-1D in CRC-originated cell lines (SW480 and HCT116). qRT-PCR revealed a positive correlation between the expression level of OCC-1D and its neighboring gene, APPL2. Two distinct tests, downregulation of APPL2 mRNA by using shRNA and Wnt signaling inhibition by using small molecule, along with OCC-1D overexpression confirmed that OCC-1D lncRNA exerts its effect on Wnt signaling pathway through expression modulation of APPL2 gene.
conclusionsCollectively, we suggested the putative regulatory effects of OCC-1D lncRNA on cell cycle progression and Wnt signaling activation through enhancing the APPL2 gene transcription.
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