Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 11, Issue 21, Pages 3553-3557Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ob40249e
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Funding
- Cancer Research UK [C9344/A10268]
- School of Pharmacy
- Cancer Research UK [10268] Funding Source: researchfish
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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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