RESUMO
Objective To explore the effect of speckle-type POZ protein (SPOP) on migration and invasion of HepG2 cells in vitro. Methods Stable gain- A nd loss-of SPOP expression HepG2 cell lines were constructed using plasmid overexpression and shRNA technique. Western blotting was used to detect the overexpression and knockdown effect of SPOP, and the effects of SPOP on the migration and invasion of HepG2 cells was examined by Transwell assays and wound-healing assay was also used to detect HepG2 cells' migration in vitro. Results The effect of gain- A nd loss-of SPOP expression was obvious in constructed stable HepG2 cells. HepG2 cells' migration and invasion were significantly decreased by gain-SPOP expression, while the cells' migration and invasion were obviously enhanced in loss-SPOP expression HepG2 cells. Wound-healing assay exhibited that SPOP overexpression suppressed HepG2 cells ' migration and that downregulation of SPOP promoted the migration of HepG2 cells. Conclusion SPOP could negatively regulate HepG2 cells' metastasis in vitro.