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- W4378173003 abstract "MiR19b-3p acts as a tumor suppressor gene in various cancers, but its function in gastric cancer is unknown. This study investigated the role of miR19b-3p in angiogenesis and the proliferation of human gastric cancer cells targeting ETBR expression. Cell proliferation in SGC-7901 cells, cell transfection, luciferase reporter assay, detection of endothelin B receptor mRNAs by RT-qPCR, and a Western blot assay were carried out. RT-qPCR expression analysis showed a prominent (p<0.01) downregulation of miR19b-3p in SGC-7901 cells, which was inversely correlated with a substantial increase (p<0.01) in the endothelin B receptor (ETBR). However, overexpression of miR19b-3p in SGC-7901 cells with its mimic (p<0.01) resulted in the loss of cell viability in the MTT assay. This effect was reversed (p<0.01) by the inhibitor. Western blot analysis revealed that ETBR was significantly (p<0.01) decreased by miR19b-3p overexpression compared with that of the negative control or its inhibitor. Based on bioinformatics tools and luciferase reporter assays, we found that miR19b-3p interacts with the 3'untranslated region (3'UTR) of ETBR. Restoring miR19b-3p overexpression with its mimic led to downregulation of ETBR in gastric cancer cells (SGC-7901), which significantly (p<0.01) decreased the expression of vascular endothelial growth factor A (VEGF-A). These findings were considerably reversed by miR19b-3p inhibitors (p<0.01). The results indicated that miR19b-3p exerts its molecular action by targeting ETBR at the post-transcriptional level by regulating angiogenesis and proliferation by overexpressing miR19b-3p as a potential treatment target for gastric cancer." @default.
- W4378173003 created "2023-05-26" @default.
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- W4378173003 date "2023-05-25" @default.
- W4378173003 modified "2023-09-27" @default.
- W4378173003 title "MiRNA-19b-3p downregulates the endothelin B receptor in gastric cancer cells to prevent angiogenesis and proliferation" @default.
- W4378173003 doi "https://doi.org/10.18388/abp.2020_6595" @default.
- W4378173003 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37226719" @default.
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