N-acetylglucosaminyltransferase I promotes glioma cell proliferation and migration through increasing the stability of the glucose transporter GLUT1

作者

Li, YN; Liu, YC; Zhu, HD; Chen, XN; Tian, M; Wei, YY; Gong, Y; Jiang, JH

作者单位

[Li, Yinan; Chen, Xiaoning; Wei, Yuanyan; Jiang, Jianhai] Fudan Univ, Sch Basic Med Sci, Dept Biochem & Mol Biol, NHC Key Lab Glycoconjugates Res, Shanghai, Peoples R China; [Liu, Yingchao] Shandong Univ, Prov Hosp, Dept Neurosurg, Jinan, Shandong, Peoples R China; [Zhu, Hongda; Tian, Mi; Gong, Ye] Fudan Univ, Huashan Hosp, Dept Neurosurg, Shanghai, Peoples R China; [Tian, Mi; Gong, Ye] Fudan Univ, Huashan Hosp, Dept Crit Care Med, Shanghai, Peoples R China

摘要

Abnormal alteration of N-glycosylation structure contributes to glioma progression. N-acetylglucosaminyltransferase I (MGAT1) plays an essential role in the conversion of processed high-mannose cores into complex or hybrid N-linked oligosaccharide structures. The function of MGAT1 in glioma development remains largely unknown. Here, we found that the expression of MGAT1 is higher in glioblastoma compared to normal brain tissues. Inhibition of EGFR signalling pathway or serum starvation reduces MGAT1 expression. Knockdown of MGAT1 inhibits glioma cell proliferation and migration. Furthermore, MGAT1 promotes complex N-glycosylation of glucose transporter 1 (Glut1) and increases Glut1 protein levels. In summary, our findings indicate that MGAT1 is highly expressed in glioblastoma and promotes glioma cells at least partly through upregulation of Glut1 protein.

关键词

EPIDERMAL-GROWTH-FACTOR; FACTOR RECEPTOR; GLYCOSYLATION; OLIGOSACCHARIDES; ACTIVATION; EXPRESSION; INVASION; COMPLEX

基本信息

所属机构:

归属医师: 刘英超

PMID：31494931

UT：000486771900001

刊名:FEBS LETTERS

年，卷(期):2020年594卷2期

页码：358-366

DOI：10.1002/1873-3468.13596

附件： other

收录: SCIE