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- W2780496321 endingPage "376" @default.
- W2780496321 startingPage "345" @default.
- W2780496321 abstract "It has been well established that environmental and occupational exposure to heavy metal causes cancer in several organs. Although the exact mechanism of heavy metal carcinogenesis remains elusive, metal-generated reactive oxygen species (ROS) are essential. ROS can play two roles in metal carcinogenesis; two stages in the process of metal carcinogenesis differ in the amounts of ROS activating a dual redox-mediated mechanism. In the early stage of metal carcinogenesis, ROS acts in an oncogenic role. However, in the late stage of metal carcinogenesis, ROS plays an antioncogenic role. Similarly, NF-E2–related factor 2 (Nrf2) also has two different roles, which makes it a key molecule for separating metal carcinogenesis into two different stages. In the early stage, inducible Nrf2 fights against elevated ROS to decrease cell transformation by its antioxidant protection property. In the late stage, constitutively activated Nrf2 manipulates reduced ROS to perform a comfortable environment for apoptosis resistance through an oncogenic role. Interestingly, a cunning carcinogenic mechanism takes advantage of the dual role of Nrf2 to implement the dual role of ROS through a series of redox adaption mechanisms. In this review, we discuss the paradox in the rationales behind the two opposite ROS roles and focus on their potential pharmacological application. The dual role of ROS represents a ‘double-edged sword’ with many possible novel ROS-mediated strategies in cancer therapy in metal carcinogenesis." @default.
- W2780496321 created "2018-01-05" @default.
- W2780496321 creator A5024765965 @default.
- W2780496321 creator A5049258884 @default.
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- W2780496321 creator A5088517899 @default.
- W2780496321 creator A5091563955 @default.
- W2780496321 date "2017-01-01" @default.
- W2780496321 modified "2023-10-01" @default.
- W2780496321 title "Dual Roles of Oxidative Stress in Metal Carcinogenesis" @default.
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