Title : The uric acid transporter SLC2A9 is a direct target gene of the tumor suppressor p53 contributing to antioxidant defense.

Pub. Date : 2015 Apr 2

PMID : 24858040






6 Functional Relationships(s)
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1 We identified the uric acid transporter SLC2A9 (also known as GLUT9) as a direct p53 target gene and a key downstream effector in the reduction of reactive oxygen species (ROS) through transporting uric acid as a source of antioxidant. Reactive Oxygen Species tumor protein p53 Homo sapiens
2 We identified the uric acid transporter SLC2A9 (also known as GLUT9) as a direct p53 target gene and a key downstream effector in the reduction of reactive oxygen species (ROS) through transporting uric acid as a source of antioxidant. Reactive Oxygen Species tumor protein p53 Homo sapiens
3 Oxidative stress induced SLC2A9 expression in a p53-dependent manner, and inhibition of SLC2A9 by small interfering RNA (siRNA) or anti-gout drugs such as probenecid significantly increased ROS levels in an uric acid-dependent manner and greatly sensitized cancer cells to chemotherapeutic drugs. Reactive Oxygen Species tumor protein p53 Homo sapiens
4 The increased production of ROS because of p53 loss was rescued by SLC2A9 expression. Reactive Oxygen Species tumor protein p53 Homo sapiens
5 Our findings suggest that the p53-SLC2A9 pathway is a novel antioxidant mechanism that uses uric acid to maintain ROS homeostasis and prevent accumulation of ROS-associated damage that potentially contributes to cancer development. Reactive Oxygen Species tumor protein p53 Homo sapiens
6 Our findings suggest that the p53-SLC2A9 pathway is a novel antioxidant mechanism that uses uric acid to maintain ROS homeostasis and prevent accumulation of ROS-associated damage that potentially contributes to cancer development. Reactive Oxygen Species tumor protein p53 Homo sapiens