UBE2J2 promotes hepatocellular carcinoma cell epithelial-mesenchymal transition and invasion in vitro.
Shaopeng Chen, Ying Tan, Haihua Deng, Zhifa Shen, Yanhong Liu, Pan Wu, Chunyan Tan, Yuyang Jiang
Oncotarget | Published : 2017
Ubiquitin-conjugating enzyme E2 J2 (UBE2J2) is an ubiquitin proteasome component that responds to proteotoxic stress. We found that UBE2J2 was highly expressed in cellular protrusions of HCCLM3 metastatic hepatocellular carcinoma (HC) cells. Immunohistochemical analyses showed that UBE2J2 was expressed at higher levels in HC patient tissues than in corresponding non-tumor tissues. Because cellular protrusions are important for cell invasion, we hypothesized that UBE2J2 promotes HC cell invasion. We used chip-based surface plasmon resonance (SPR) to assess possible mechanisms of UBE2J2-regulated HCCLM3 cell invasion. We found that p-EGFR interacted with UBE2J2, and this finding was confirmed ..View full abstract