Inhibiting system xC− and glutathione biosynthesis – a potential Achilles' heel in mutant-p53 cancers

Effective therapeutic strategies to target mutant tumor protein p53 (TP53, best known as p53) cancers remain an unmet medical need. We found that mutant p53 impairs the function of nuclear factor (erythroid-derived 2)-like 2 (NFE2L2, commonly known as NRF2), suppresses solute carrier family 7 member...

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Main Authors: Nicholas J. Clemons, David S. Liu, Cuong P. Duong, Wayne A. Phillips
Format: Article
Language:English
Published: Taylor & Francis Group 2017-09-01
Series:Molecular & Cellular Oncology
Subjects:
Online Access:http://dx.doi.org/10.1080/23723556.2017.1344757
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author Nicholas J. Clemons
David S. Liu
Cuong P. Duong
Wayne A. Phillips
author_facet Nicholas J. Clemons
David S. Liu
Cuong P. Duong
Wayne A. Phillips
author_sort Nicholas J. Clemons
collection DOAJ
description Effective therapeutic strategies to target mutant tumor protein p53 (TP53, best known as p53) cancers remain an unmet medical need. We found that mutant p53 impairs the function of nuclear factor (erythroid-derived 2)-like 2 (NFE2L2, commonly known as NRF2), suppresses solute carrier family 7 member 11 (SLC7A11) expression, and diminishes cellular glutamate/cystine exchange. This decreases glutathione biosynthesis, resulting in redox imbalance. Mutant p53 tumors are thus inherently susceptible to further perturbations of the SLC7A11/glutathione axis.
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spelling doaj.art-348115661eca484bbf949019178edd012023-09-22T09:10:58ZengTaylor & Francis GroupMolecular & Cellular Oncology2372-35562017-09-014510.1080/23723556.2017.13447571344757Inhibiting system xC− and glutathione biosynthesis – a potential Achilles' heel in mutant-p53 cancersNicholas J. Clemons0David S. Liu1Cuong P. Duong2Wayne A. Phillips3Division of Cancer Research, Peter MacCallum Cancer CentreDivision of Cancer Research, Peter MacCallum Cancer CentreDivision of Cancer Surgery, Peter MacCallum Cancer CentreDivision of Cancer Research, Peter MacCallum Cancer CentreEffective therapeutic strategies to target mutant tumor protein p53 (TP53, best known as p53) cancers remain an unmet medical need. We found that mutant p53 impairs the function of nuclear factor (erythroid-derived 2)-like 2 (NFE2L2, commonly known as NRF2), suppresses solute carrier family 7 member 11 (SLC7A11) expression, and diminishes cellular glutamate/cystine exchange. This decreases glutathione biosynthesis, resulting in redox imbalance. Mutant p53 tumors are thus inherently susceptible to further perturbations of the SLC7A11/glutathione axis.http://dx.doi.org/10.1080/23723556.2017.1344757apr-246glutathione (gsh)nfe2l2nrf2p53prima-1metreactive oxygen species (ros)slc7a11system xc−xct
spellingShingle Nicholas J. Clemons
David S. Liu
Cuong P. Duong
Wayne A. Phillips
Inhibiting system xC− and glutathione biosynthesis – a potential Achilles' heel in mutant-p53 cancers
Molecular & Cellular Oncology
apr-246
glutathione (gsh)
nfe2l2
nrf2
p53
prima-1met
reactive oxygen species (ros)
slc7a11
system xc−
xct
title Inhibiting system xC− and glutathione biosynthesis – a potential Achilles' heel in mutant-p53 cancers
title_full Inhibiting system xC− and glutathione biosynthesis – a potential Achilles' heel in mutant-p53 cancers
title_fullStr Inhibiting system xC− and glutathione biosynthesis – a potential Achilles' heel in mutant-p53 cancers
title_full_unstemmed Inhibiting system xC− and glutathione biosynthesis – a potential Achilles' heel in mutant-p53 cancers
title_short Inhibiting system xC− and glutathione biosynthesis – a potential Achilles' heel in mutant-p53 cancers
title_sort inhibiting system xc and glutathione biosynthesis a potential achilles heel in mutant p53 cancers
topic apr-246
glutathione (gsh)
nfe2l2
nrf2
p53
prima-1met
reactive oxygen species (ros)
slc7a11
system xc−
xct
url http://dx.doi.org/10.1080/23723556.2017.1344757
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