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Effect of Targeted Interference with TAGLN Expression on Biological Behavior of HBV-Positive Hepatocellular Carcinoma Cells and Its Mechanisms |
XU Yan1,LIU Zheng-yun1,2,ZHANG Wan-ling1,WANG Sheng-yu1,2,WANG Huan1,2,**() |
1 Research Center for Medical and Biology,Zunyi Medical University, Zunyi 563099, China 2 Key Laboratory of Infectious Disease & Biosafety, Provincial Department of Education, Zunyi 563099, China; |
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Abstract Objective: To invest igate the effect of TAGLN on the biological behavior of HBV-positive hepatocellular carcinoma cell line HepG2.2.15 and its underlying mechanism.Methods: Immunohistochemistry and Western blot were used to detect the expression levels of TAGLN in HBV-positive and HBV-negative hepatocellular carcinoma tissues and cells; HepG2.2.15 cells were infected with TAGLN interfering lentiviruses, and stable expression cell lines were screened by purinomycin. Then transfection efficiency was confirmed by Western blot; CCK-8 and clone formation assay were used to detect the proliferation of HepG2.2.15 cells. While cell migration and invasion capabilities were determined by Transwell assay. The expression levels of PI3K, p-PI3K, AKT and p-AKT were examined by Western blot.Results: The expression of TAGLN in HBV-positive hepatocellular carcinoma tissues and cells was higher than that in HBV-negative hepatocellular carcinoma tissues and cells(P<0.01); Knockdown of TAGLN could effectively inhibit cell proliferation, migration and invasion (P<0.01), as well as down-regulate the expression of PI3K, AKT(P<0.01), p-PI3K and p-AKT (P<0.05).Conclusion: HBV infection can increase the expression of TAGLN in hepatocellular carcinoma. After interfering with TAGLN expression, the proliferation, cloning, migration and invasion of HepG2.2.15 cells decreased, which may be related to the decrease of PI3K and AKT expression.
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Received: 14 April 2019
Published: 17 December 2019
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Corresponding Authors:
Huan WANG
E-mail: wanghuan928@163.com
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