Illumina microarray was used to identify differentially expressed genes in three epithelial ovarian cancer (EOC) cells. To validate the microarray data, mRNA and protein level of glucose transporter-1 (GLUT-1) was examined. GLUT-1 had an EOC/normal cells ratio of 5.51 based on microarray. Real-time PCR and immunohistochemistry demonstrated that GLUT-1 expression was significantly increased in EOC (p = .029 and p < .001, respectively). On survival analysis, GLUT-1 overexpression (HR = 4.80, p = .027) and lymph node metastases (HR = 8.35, p = .016) conferred a significantly worse overall survival. In conclusion, GLUT-1 expression is remarkably upregulated in EOC and predicts a poor overall survival.
Bibliographical noteFunding Information:
This work was supported in part by grants from the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2011-0005230, 2011-0010286, and 2011-0007146) and faculty research grants from Yonsei University College of Medicine for 2010 and 2011 (3-2010-0072 and 6-2011-0073).
All Science Journal Classification (ASJC) codes
- Cancer Research