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Objective: LncRNA IUR has been recently identified as a key regulator of Bcr-Abl-induced tumorigenesis, while its role in gastric carcinoma (GC) is unknown. This study aimed to investigate the involvement of IUR in GC. Patients and Methods: Gene expression levels were measured by performing quantitative polymerase chain reaction. Interactions between IUR and ROCK1 were analyzed by transfection experiments. Cell invasion and migration were analyzed by Transwell assay. Results: In this study, the authors showed that IUR was downregulated in GC. A follow-up study showed that low IUR expression levels predicted poor survival. In GC tissues, ROCK1 was upregulated in GC tissues and inversely correlated with IUR. In GC cells, IUR overexpression mediated the downregulation of ROCK1. ROCK1 overexpression resulted in increased GC cell invasion and migration, while IUR overexpression played an opposite role. Conclusion: IUR is downregulated in GC and inhibits GC cell invasion and migration by downregulating ROCK1.


Rui Ou, Xin Liu. LncRNA IUR Is Downregulated in Gastric Carcinoma and Associated with Poor Survival. Cancer biotherapy & radiopharmaceuticals. 2020 Aug 12

PMID: 32783641

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