Antioxidant response elements: Discovery, classes, regulation and potential applications

© 2018 The Authors Exposure to antioxidants and xenobiotics triggers the expression of a myriad of genes encoding antioxidant proteins, detoxifying enzymes, and xenobiotic transporters to offer protection against oxidative stress. This articulated universal mechanism is regulated through the cis-act...

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Main Authors: Raghunath, A., Sundarraj, K., Nagarajan, R., Arfuso, Frank, Bian, J., Kumar, Alan Prem, Sethi, G., Perumal, E.
Format: Journal Article
Published: Elsevier BV 2018
Online Access:http://hdl.handle.net/20.500.11937/68748
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author Raghunath, A.
Sundarraj, K.
Nagarajan, R.
Arfuso, Frank
Bian, J.
Kumar, Alan Prem
Sethi, G.
Perumal, E.
author_facet Raghunath, A.
Sundarraj, K.
Nagarajan, R.
Arfuso, Frank
Bian, J.
Kumar, Alan Prem
Sethi, G.
Perumal, E.
author_sort Raghunath, A.
building Curtin Institutional Repository
collection Online Access
description © 2018 The Authors Exposure to antioxidants and xenobiotics triggers the expression of a myriad of genes encoding antioxidant proteins, detoxifying enzymes, and xenobiotic transporters to offer protection against oxidative stress. This articulated universal mechanism is regulated through the cis-acting elements in an array of Nrf2 target genes called antioxidant response elements (AREs), which play a critical role in redox homeostasis. Though the Keap1/Nrf2/ARE system involves many players, AREs hold the key in transcriptional regulation of cytoprotective genes. ARE-mediated reporter constructs have been widely used, including xenobiotics profiling and Nrf2 activator screening. The complexity of AREs is brought by the presence of other regulatory elements within the AREs. The diversity in the ARE sequences not only bring regulatory selectivity of diverse transcription factors, but also confer functional complexity in the Keap1/Nrf2/ARE pathway. The different transcription factors either homodimerize or heterodimerize to bind the AREs. Depending on the nature of partners, they may activate or suppress the transcription. Attention is required for deeper mechanistic understanding of ARE-mediated gene regulation. The computational methods of identification and analysis of AREs are still in their infancy. Investigations are required to know whether epigenetics mechanism plays a role in the regulation of genes mediated through AREs. The polymorphisms in the AREs leading to oxidative stress related diseases are warranted. A thorough understanding of AREs will pave the way for the development of therapeutic agents against cancer, neurodegenerative, cardiovascular, metabolic and other diseases with oxidative stress.
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spelling curtin-20.500.11937-687482018-06-29T12:35:37Z Antioxidant response elements: Discovery, classes, regulation and potential applications Raghunath, A. Sundarraj, K. Nagarajan, R. Arfuso, Frank Bian, J. Kumar, Alan Prem Sethi, G. Perumal, E. © 2018 The Authors Exposure to antioxidants and xenobiotics triggers the expression of a myriad of genes encoding antioxidant proteins, detoxifying enzymes, and xenobiotic transporters to offer protection against oxidative stress. This articulated universal mechanism is regulated through the cis-acting elements in an array of Nrf2 target genes called antioxidant response elements (AREs), which play a critical role in redox homeostasis. Though the Keap1/Nrf2/ARE system involves many players, AREs hold the key in transcriptional regulation of cytoprotective genes. ARE-mediated reporter constructs have been widely used, including xenobiotics profiling and Nrf2 activator screening. The complexity of AREs is brought by the presence of other regulatory elements within the AREs. The diversity in the ARE sequences not only bring regulatory selectivity of diverse transcription factors, but also confer functional complexity in the Keap1/Nrf2/ARE pathway. The different transcription factors either homodimerize or heterodimerize to bind the AREs. Depending on the nature of partners, they may activate or suppress the transcription. Attention is required for deeper mechanistic understanding of ARE-mediated gene regulation. The computational methods of identification and analysis of AREs are still in their infancy. Investigations are required to know whether epigenetics mechanism plays a role in the regulation of genes mediated through AREs. The polymorphisms in the AREs leading to oxidative stress related diseases are warranted. A thorough understanding of AREs will pave the way for the development of therapeutic agents against cancer, neurodegenerative, cardiovascular, metabolic and other diseases with oxidative stress. 2018 Journal Article http://hdl.handle.net/20.500.11937/68748 10.1016/j.redox.2018.05.002 Elsevier BV restricted
spellingShingle Raghunath, A.
Sundarraj, K.
Nagarajan, R.
Arfuso, Frank
Bian, J.
Kumar, Alan Prem
Sethi, G.
Perumal, E.
Antioxidant response elements: Discovery, classes, regulation and potential applications
title Antioxidant response elements: Discovery, classes, regulation and potential applications
title_full Antioxidant response elements: Discovery, classes, regulation and potential applications
title_fullStr Antioxidant response elements: Discovery, classes, regulation and potential applications
title_full_unstemmed Antioxidant response elements: Discovery, classes, regulation and potential applications
title_short Antioxidant response elements: Discovery, classes, regulation and potential applications
title_sort antioxidant response elements: discovery, classes, regulation and potential applications
url http://hdl.handle.net/20.500.11937/68748