Austin Health

Title
Inhibiting system xC− and glutathione biosynthesis – a potential Achilles' heel in mutant-p53 cancers
Publication Date
2017-07-05
Author(s)
Clemons, Nicholas J
Liu, David S
Duong, Cuong P
Phillips, Wayne A
Subject
APR-246
NFE2L2
NRF2
PRIMA-1met
SLC7A11
glutathione (GSH)
p53
reactive oxygen species (ROS)
system xC−
xCT
Type of document
Journal Article
DOI
10.1080/23723556.2017.1344757
Abstract
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.
Link
Citation
Molecular & Cellular Oncology 2017; 4(5): e1344757
Jornal Title
Molecular & Cellular Oncology

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