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Liu J, Zhang Y, Liu W, Zhang Q, Xiao H, Song H, Luo B. MiR-BART1-5p targets core 2β-1,6-acetylglucosaminyltransferase GCNT3 to inhibit cell proliferation and migration in EBV-associated gastric cancer. Virology 2019; 541:63-74. [PMID: 32056716 DOI: 10.1016/j.virol.2019.12.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/22/2019] [Accepted: 12/10/2019] [Indexed: 12/29/2022]
Abstract
GCNT3 (core 2β-1,6-acetylglucosaminyltransferase) is a novel core mucin synthase. It is known that abnormal expression of GCNT3 promotes the progression of several human cancers. However, its relationship with Epstein-Barr virus (EBV) has not been comprehensively studied. We found GCNT3 expression in EBV-associated gastric cancer cells and tissues to be lower than in EBV-negative gastric cancer cells and tissues, and high expression was significantly associated with advanced tumor-lymph node metastasis. Luciferase reporter assay revealed that miR-BART1-5p directly targeted GCNT3. In addition, miR-BART1-5p mimics transfection was observed to reduce cell proliferation and migration, while miR-BART1-5p inhibitor increased cell proliferation and migration following transfection. In conclusion, both miR-BART1-5p and knockdown of GCNT3 inhibited cell proliferation and migration. In addition, EBV may regulate GCNT3 by affecting the NF-kB signaling pathway. E-cadherin, N-cadherin, vimentin, and p-ERK were found to be downstream molecules of the miR-BART1-5p/GCNT3 pathway.
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Affiliation(s)
- Juanjuan Liu
- Department of Pathogenic Biology, Qingdao University Medical College, 38 Dengzhou Road, Qingdao, 266021, China.
| | - Yan Zhang
- Department of Pathogenic Biology, Qingdao University Medical College, 38 Dengzhou Road, Qingdao, 266021, China; Department of Clinical Laboratory, Central Hospital of Zibo, 54 Gongqingtuan Road, Zibo, 255036, China.
| | - Wen Liu
- Department of Pathogenic Biology, Qingdao University Medical College, 38 Dengzhou Road, Qingdao, 266021, China.
| | - Qianqian Zhang
- Department of Pathogenic Biology, Qingdao University Medical College, 38 Dengzhou Road, Qingdao, 266021, China.
| | - Hua Xiao
- Department of Pathogenic Biology, Qingdao University Medical College, 38 Dengzhou Road, Qingdao, 266021, China.
| | - Hui Song
- Department of Pathogenic Biology, Qingdao University Medical College, 38 Dengzhou Road, Qingdao, 266021, China.
| | - Bing Luo
- Department of Pathogenic Biology, Qingdao University Medical College, 38 Dengzhou Road, Qingdao, 266021, China.
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