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A comparative analysis of inhibitors of the glycolysis pathway in breast and ovarian cancer cell line models

A comparative analysis of inhibitors of the glycolysis pathway in breast and ovarian cancer cell line models

Authors :
Alan Wise
Simon P. Langdon
Carol Ward
Arran K Turnbull
Chrysi Xintaropoulou
Hugh Marston
Source :
Oncotarget, Xintaropoulou, C, Ward, C, Wise, A, Marston, H, Turnbull, A & Langdon, S 2015, ' A comparative analysis of inhibitors of the glycolysis pathway in breast and ovarian cancer cell line models ', Oncotarget . https://doi.org/10.18632/oncotarget.4499
Publication Year :
2015

Abstract

Many cancer cells rely on aerobic glycolysis for energy production and targeting of this pathway is a potential strategy to inhibit cancer cell growth. In this study, inhibition of five glycolysis pathway molecules (GLUT1, HKII, PFKFB3, PDHK1 and LDH) using 9 inhibitors (Phloretin, Quercetin, STF31, WZB117, 3PO, 3-bromopyruvate, Dichloroacetate, Oxamic acid, NHI-1) was investigated in panels of breast and ovarian cancer cell line models. All compounds tested blocked glycolysis as indicated by increased extracellular glucose and decreased lactate production and also increased apoptosis. Sensitivity to several inhibitors correlated with the proliferation rate of the cell lines. Seven compounds had IC50 values that were associated with each other consistent with a shared mechanism of action. A synergistic interaction was revealed between STF31 and Oxamic acid when combined with the antidiabetic drug metformin. Sensitivity to glycolysis inhibition was also examined under a range of O2 levels (21% O2, 7% O2, 2% O2 and 0.5% O2) and greater resistance to the inhibitors was found at low oxygen conditions (7% O2, 2% O2 and 0.5% O2) relative to 21% O2 conditions. These results indicate growth of breast and ovarian cancer cell lines is dependent on all the targets examined in the glycolytic pathway with increased sensitivity to the inhibitors under normoxic conditions.

Details

ISSN :
19492553
Volume :
6
Issue :
28
Database :
OpenAIRE
Journal :
Oncotarget
Accession number :
edsair.doi.dedup.....1446f6ebdc5a974e8c703424abb0da66
Full Text :
https://doi.org/10.18632/oncotarget.4499