A Comparative Assessment Study of Known Small-Molecule Keap1-Nrf2 Protein-Protein Interaction Inhibitors: Chemical Synthesis, Binding Properties, and Cellular Activity
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A Comparative Assessment Study of Known Small-Molecule Keap1-Nrf2 Protein-Protein Interaction Inhibitors : Chemical Synthesis, Binding Properties, and Cellular Activity. / Tran, Kim Tai; Pallesen, Jakob S; Solbak, Sara Marie Øie; Narayanan, Dilip; Baig, Amina; Zang, Jie; Aguayo-Orozco, Alejandro; Carmona, Rosa; Garcia, Anthony; Bach, Anders.
In: Journal of Medicinal Chemistry, Vol. 62, No. 17, 2019, p. 8028-8052.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - A Comparative Assessment Study of Known Small-Molecule Keap1-Nrf2 Protein-Protein Interaction Inhibitors
T2 - Chemical Synthesis, Binding Properties, and Cellular Activity
AU - Tran, Kim Tai
AU - Pallesen, Jakob S
AU - Solbak, Sara Marie Øie
AU - Narayanan, Dilip
AU - Baig, Amina
AU - Zang, Jie
AU - Aguayo-Orozco, Alejandro
AU - Carmona, Rosa
AU - Garcia, Anthony
AU - Bach, Anders
N1 - - Covered by Derek Lowe at his ‘In the Pipeline’ blog https://blogs.sciencemag.org/pipeline/archives/2019/08/28/not-all-of-those-compounds-are-real-again
PY - 2019
Y1 - 2019
N2 - Inhibiting the protein-protein interaction (PPI) between the transcription factor Nrf2 and its repressor protein Keap1 has emerged as a promising strategy to target oxidative stress in diseases, including CNS disorders. Numerous non-covalent small-molecule Keap1-Nrf2 PPI inhibitors have been reported to date, but many feature suboptimal physicochemical properties for permeating the blood-brain barrier, while others contain problematic structural moieties. Here, we present the first side-by-side assessment of all reported Keap1-Nrf2 PPI inhibitor classes using fluorescence polarization (FP), thermal shift assay (TSA), and surface plasmon resonance (SPR)-and further evaluate the compounds in an NQO1 induction cell assay and in counter tests for non-specific activities. Surprisingly, half of the compounds were inactive or deviated substantially from reported activities, while we confirm the cross-assay activities for others. Through this study, we have identified the most promising Keap1-Nrf2 inhibitors that can serve as pharmacological probes or starting points for developing CNS active Keap1 inhibitors.
AB - Inhibiting the protein-protein interaction (PPI) between the transcription factor Nrf2 and its repressor protein Keap1 has emerged as a promising strategy to target oxidative stress in diseases, including CNS disorders. Numerous non-covalent small-molecule Keap1-Nrf2 PPI inhibitors have been reported to date, but many feature suboptimal physicochemical properties for permeating the blood-brain barrier, while others contain problematic structural moieties. Here, we present the first side-by-side assessment of all reported Keap1-Nrf2 PPI inhibitor classes using fluorescence polarization (FP), thermal shift assay (TSA), and surface plasmon resonance (SPR)-and further evaluate the compounds in an NQO1 induction cell assay and in counter tests for non-specific activities. Surprisingly, half of the compounds were inactive or deviated substantially from reported activities, while we confirm the cross-assay activities for others. Through this study, we have identified the most promising Keap1-Nrf2 inhibitors that can serve as pharmacological probes or starting points for developing CNS active Keap1 inhibitors.
U2 - 10.1021/acs.jmedchem.9b00723
DO - 10.1021/acs.jmedchem.9b00723
M3 - Journal article
C2 - 31411465
VL - 62
SP - 8028
EP - 8052
JO - Journal of Medicinal Chemistry
JF - Journal of Medicinal Chemistry
SN - 0022-2623
IS - 17
ER -
ID: 225993575