Journal
EPIGENOMICS
Volume 11, Issue 9, Pages 1021-1036Publisher
FUTURE MEDICINE LTD
DOI: 10.2217/epi-2019-0072
Keywords
breast cancer; breast carcinoma; expression; GLUT1; glycolysis; miRNA-mRNA network; miR-140-5p; prognosis; proliferation; SLC2A1
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Funding
- National Key Research and Development Program of China [2016YFC0905900]
- National Natural Science Foundation of China [81872365, 81702613]
- 333 Talent Project of Jiangsu Province [4(2016)]
- Innovation Team Construction Project of Nanjing Medical University [JX102GSP201727]
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Aim: Aerobic glycolysis is characteristic of breast cancer. Comprehensive expression profiles of key proteins, their prognosis and detailed relationships between miRNAs and mRNAs remain unclear. Materials & methods: Oncomine database, Kaplan-Meier overall survival and miRNA-mRNA network analysis were performed. A key miRNA was identified and explored in vitro and in vivo. Results & conclusion: Eleven key glycolytic proteins were found with higher expression and poor prognosis: GLUT1, SLC2A5, HK1, PFKP, ALDOA, TPI1, GAPDH, PGK1, ENO1, GOT1 and GOT2. Seven miRNAs were predicted targeting 11 key glycolytic proteins: miR-140-5p, miR-3064-5p, miR-152-3p, miR-449b-5p, miR-449a, miR-194-5p and miR-34a-5p. Among them, miR-140-5p was found to be downregulated in breast cancer and directly targeted GLUT1, resulting in an antiglycolytic and antiproliferative effect.
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