FASN, ErbB2-mediated glycolysis is required for breast cancer cell migration

被引:28
作者
Zhou, Lan [1 ,2 ,4 ]
Jiang, Sufang [1 ]
Fu, Qiang [1 ]
Smith, Kelly [3 ]
Tu, Kailing [1 ]
Li, Hua [2 ]
Zhao, Yuhua [1 ]
机构
[1] Sichuan Univ, Dept Biochem & Mol Biol, West China Sch Preclin & Forens Med, 17,Sect 3,South Renmin Rd, Chengdu 610041, Sichuan, Peoples R China
[2] Sichuan Univ, Dept Anat, West China Sch Preclin & Forens Med, 17,Sect 3,South Renmin Rd, Chengdu 610041, Sichuan, Peoples R China
[3] Univ S Alabama, Mitchell Canc Inst, Mobile, AL 36604 USA
[4] Chengdu Univ, Sch Basic Med Sci & Nursing, Chengdu 610015, Sichuan, Peoples R China
关键词
fatty acid synthase; ErbB2; glycolysis; migration; breast cancer; FATTY-ACID SYNTHASE; EPITHELIAL-MESENCHYMAL TRANSITION; UP-REGULATION; PROMOTES; LACTATE; METASTASIS; INVASION; OVEREXPRESSION; ERBB2; PROLIFERATION;
D O I
10.3892/or.2016.4627
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Both fatty acid synthase (FASN) and ErbB2 have been shown to promote breast cancer cell migration. However, the underlying molecular mechanism remains poorly understood and there is no reported evidence that directly links glycolysis to breast cancer cell migration. In this study, we investigated the role of FASN, ErbB2-mediated glycolysis in breast cancer cell migration. First, we compared lactate dehydrogenase A (LDHA) protein levels, glycolysis and cell migration between FASN, ErbB2-overexpressing SK-BR-3 cells and FASN, ErbB2-low-expressing MCF7 cells. Then, SK-BR-3 cells were treated with cerulenin (Cer), an inhibitor of FASN, and ErbB2, LDHA protein levels, glycolysis, and cell migration were detected. Next, we transiently transfected ErbB2 plasmid into MCF7 cells and detected FASN, LDHA protein levels, glycolysis and cell migration. Heregulin-beta 1 (HRG-beta 1) is an activator of ErbB2 and 2-deoxyglucose (2-DG) and oxamate (OX) are inhibitors of glycolysis. MCF7 cells were treated with HRG-beta 1 alone, HRG-beta 1 plus 2-DG, OX or cerulenin and glycolysis, and cell migration were measured. We found that FASN, ErbB2-high-expressing SK-BR-3 cells displayed higher levels of glycolysis and migration than FASN, ErbB2-low-expressing MCF7 cells. Inhibition of FASN by cerulenin impaired glycolysis and migration in SK-BR-3 cells. Transient overexpression of ErbB2 in MCF7 cells promotes glycolysis and migration. Moreover, 2-deoxyglucose (2-DG), oxamate (OX), or cerulenin partially reverses heregulin-beta 1 (HRG-beta 1)-induced glycolysis and migration in MCF7 cells. In conclusion, this study demonstrates that FASN, ErbB2-mediated glycolysis is required for breast cancer cell migration. These novel findings indicate that targeting FASN, ErbB2-mediated glycolysis may be a new approach to reverse breast cancer cell migration.
引用
收藏
页码:2715 / 2722
页数:8
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