Peptide inhibitors of the Keap1–Nrf2 protein–protein interaction with improved binding and cellular activity
Abstract
Inhibitors of the Keap1-Nrf2 protein-protein interaction (PPI) have been proposed as potential anti-inflammatory and cancer chemopreventive agents. Such compounds have the potential to increase the intracellular concentrations of Nrf2 in a reversible manner and consequently increase the expression of a battery of gene products with antioxidant response elements (AREs) in their promoter region. In this manuscript we describe the development of peptide inhibitors with modified C- and N-termini and reduced overall charge. The activity of the compounds in inhibiting the PPI and in cellular assays of Nrf2 function are described. Compound 10 has potent activity (IC50 = 22 nM) in a cell-free fluorescence polarisation assay and induced the expression of Nrf2 dependent gene products in cells, suggesting that it has potential as a lead molecule for the development of peptidomimetic inhibitors.
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Self-citationDiscovery and Development of Keap1-Nrf2 Protein-Protein Interaction Inhibitors
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BindingDB Entry 50006254: Non-electrophilic modulators of the canonical Keap1/Nrf2 pathway.
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BindingDB (2025) · UC San Diego · doi:10.7270/q29028gr
- Authors
- Hancock, R., Schaap, M., Pfister, H., & Wells, G.
- Affiliations
- UCL School of Pharmacy (GB)
- Venue
- Organic & Biomolecular Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 11
- Issue
- 21
- Pages
- 3553
- ISSN
- 1477-0520 (ISSN-L)
- 1477-0539
- OpenAlex
- W2001365065
- Cited by
- 91
- References
- 21
- Citations by year
- 2026: 2 · 2025: 4 · 2024: 2 · 2023: 7 · 2022: 7 · 2021: 5 · 2020: 12 · 2019: 8 · 2018: 12 · 2017: 8 · 2016: 8 · 2015: 7 · 2014: 7 · 2013: 2
- FWCI
- 3.88
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Organic & Biomolecular Chemistry (publishedVersion)
- PubMed (publishedVersion)
- UCL Discovery (University College London) (submittedVersion)
- Funders
- Cancer Research UK (C9344/A10268, 10268)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics, phytochemicals, and oxidative stress
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
- Keywords
- Keap1-Nrf2 interaction, peptide inhibitors, protein-protein interaction inhibitors, peptidomimetics, Nrf2, antioxidant response element, anti-inflammatory agents, chemoprevention, lead compound development, fluorescence polarization assay
- MeSH terms
- Animals, Binding Sites, Cells, Cultured, Colorimetry, Enzyme Inhibitors, Humans, Models, Molecular, Peptides, Protein Binding, Molecular Structure, NF-E2-Related Factor 2, Mice
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