Fig. 7: Ct-HBx mediates HBV integrated CCDC91 overexpression in HCC cells.

A The protein level of HBx in HepG2 and PLC/PRF/5 cells with or without Ct-HBx transfection detected by western blot (nā=ā3). B The mRNA level of CCDC91 in HepG2 cells with or without Ct-HBx transfection revealed by qPCR (nā=ā3). C Co-IP with antibody against HBx followed by Western blot in HepG2 and PLC/PRF/5 cells (nā=ā3). D Immunofluorescence staining of CCDC91 and HBx in HepG2 and PLC/PRF/5 cells with or without Ct-HBx transfection. E Cell proliferation of HepG2 and PLC/PRF/5 cells with or without Ct-HBx transfection detected by CCK8 assay (nā=ā3). F, G) The migration and invasion abilities of HepG2 and PLC/PRF/5 cells with or without Ct-HBx transfection measured by transwell assay (nā=ā3). H The protein level of HBx, CCDC91, and LDHA in HepG2 and PLC/PRF/5 cells with or without Ct-HBx transfection revealed by western blot (nā=ā3). I Schematic diagram illustrating the proposed mechanisms of the effects of the HBV-integrated gene CCDC91 on HCC. Statistical analysis was performed using Studentās t test in (B, E, F, and G). Data represents meanā±āSEM.*, pā<ā0.05; **, pā<ā0.01; ***, pā<ā0.001.