Abstract
The transcription of antioxidant response element (ARE)-containing cytoprotective genes has been proposed as a means to combat oxidative stress-related disorders, such as cancer and Parkinsons disease. Transactivation of the ARE requires the transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2). Cellular levels of Nrf2 protein are regulated by the Kelch-like ECH-associated protein 1 (Keap1), a substrate adaptor protein for the ubiquitin ligase machinery and subsequent proteasomal degradation. Recently, detailed studies have elucidated the structure and interactions of the Keap1-containing ubiquitin ligase complex. Here, we propose that small molecule modulation of Keap1 protein:protein interactions may permit Nrf2s nuclear accumulation and the transcription of AREdependent genes to enhance cellular resistance to oxidative insult.
Keywords: Keap1, Nrf2, Cul3, antioxidant, oxidative stress, antioxidant response element
Current Topics in Medicinal Chemistry
Title: Disruption of the Keap1-Containing Ubiquitination Complex as an Antioxidant Therapy
Volume: 7 Issue: 10
Author(s): Jonathan T. Kern, Mark Hannink and J. Fred Hess
Affiliation:
Keywords: Keap1, Nrf2, Cul3, antioxidant, oxidative stress, antioxidant response element
Abstract: The transcription of antioxidant response element (ARE)-containing cytoprotective genes has been proposed as a means to combat oxidative stress-related disorders, such as cancer and Parkinsons disease. Transactivation of the ARE requires the transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2). Cellular levels of Nrf2 protein are regulated by the Kelch-like ECH-associated protein 1 (Keap1), a substrate adaptor protein for the ubiquitin ligase machinery and subsequent proteasomal degradation. Recently, detailed studies have elucidated the structure and interactions of the Keap1-containing ubiquitin ligase complex. Here, we propose that small molecule modulation of Keap1 protein:protein interactions may permit Nrf2s nuclear accumulation and the transcription of AREdependent genes to enhance cellular resistance to oxidative insult.
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Kern T. Jonathan, Hannink Mark and Fred Hess J., Disruption of the Keap1-Containing Ubiquitination Complex as an Antioxidant Therapy, Current Topics in Medicinal Chemistry 2007; 7 (10) . https://dx.doi.org/10.2174/156802607780906825
DOI https://dx.doi.org/10.2174/156802607780906825 |
Print ISSN 1568-0266 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4294 |
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