期刊
ONCOTARGET
卷 8, 期 20, 页码 32639-32654出版社
IMPACT JOURNALS LLC
DOI: 10.18632/oncotarget.15947
关键词
UBE2T; ubiquitination; gastric cancer; tumor apoptosis; invasion and metastasis
资金
- National Nature Science Foundation of China [31670847]
- Medical Research Project of Gansu Province [GSWSKY2016-03]
- Special Talent Research Foundation of Lanzhou University Second Hospital
Ubiquitin-conjugating enzymes (E2 enzymes) such as UBE2T target proteins for degradation via the proteasome. Here, we examined the effects of UBE2T on the progression of gastric cancer. UBE2T was highly expressed in gastric tumors and gastric cancer cells. siRNA-mediated suppression of UBE2T inhibited gastric cancer cell proliferation and colony formation by promoting cell cycle arrest at G2/M phase and increasing apoptosis. Suppression of UBE2T also attenuated the invasive and metastatic abilities of gastric cancer cells by altering expression of epithelialmesenchymal transition (EMT)-related factors. A xenograft model in which nude mice were injected with UBE2T knockdown human gastric cancer cells confirmed that suppression of UBE2T also decreased tumor formation and growth in vivo. Expression levels of CCND1, Phospho-GSK3B, WNT family members, and MYC were all affected by UBE2T knockdown. These results suggest that UBE2T plays a critical role in gastric cancer, and that it may serve as a useful prognostic biomarker and therapeutic target in gastric cancer patients.
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