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Background  circ0013958 was identified as a biomarker, which can be used for the diagnosis and screening of lung cancer. However, the role of circ0013958 in hepatocellular carcinoma (HCC) remains unclear.    Methods  In our study, quantitative real-time polymerase chain reaction was performed to determine the levels of circ0013958 in HCC tissues and cell lines. EdU, CCK-8, transwell, flow cytometry and tumorigenesis assays were applied to assess the functions of circ0013958 in HCC  in vitro  and  in vivo . Western blot assay was to detect the expression of WEE1. Luciferase reporter assay, bioinformatics analysis and rescue experiments were used to examine the interaction among circ0013958, miR-532-3p and WEE1.    Results  It revealed that circ0013958 was significantly up-regulated in HCC, which was positively correlated with poor prognosis of HCC patients. Circ0013958 promoted HCC cell proliferation and invasion, inhibited cell apoptosis  in vitro , and promoted tumorigenesis  in vivo . Circ0013958 acted as a miR-532-3p sponge to regulate WEE1 expression, thus promoting the progression of HCC.    Conclusions  Circ0013958 promotes HCC progression through miR-532-3p/WEE1 axis. Circ0013958 may serve as a potential diagnostic biomarker and therapeutic target of HCC.

Circular RNA hsa_circ_0013958 Functions as an Oncogenic Gene Through Modulating miR-532-3p/WEE1 Axis in Hepatocellular Carcinoma