Discovery of a Potent Nonpeptidomimetic, Small-Molecule Antagonist of Cellular Inhibitor of Apoptosis Protein 1 (cIAP1) and X-Linked Inhibitor of Apoptosis Protein (XIAP)
Abstract
XIAP and cIAP1 are members of the inhibitor of apoptosis protein (IAP) family and are key regulators of anti-apoptotic and pro-survival signaling pathways. Overexpression of IAPs occurs in various cancers and has been associated with tumor progression and resistance to treatment. Structure-based drug design (SBDD) guided by structural information from X-ray crystallography, computational studies, and NMR solution conformational analysis was successfully applied to a fragment-derived lead resulting in AT-IAP, a potent, orally bioavailable, dual antagonist of XIAP and cIAP1 and a structurally novel chemical probe for IAP biology.
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Small-molecule antagonists exploiting the substrate-binding site of IAPs, including non-peptido-mimetic compounds, have been developed with low-nanomolar potency.
“small-molecule antagonists exploiting the substrate-binding site, including non-peptido-mimetic compounds, have been developed with low-nanomolar potency 117,118,119”
From Targeted protein degradation: expanding the toolbox (2019) · cites this paper as [117]
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- Authors
- Tamanini, E., Buck, I. M., Chessari, G., Chiarparin, E., Day, J. E. H., Frederickson, M., Griffiths-Jones, C. M., Hearn, K., Heightman, T. D., Iqbal, A., Johnson, C. N., Lewis, E. J., Martins, V., Peakman, T., Reader, M., Rich, S. J., Ward, G. A., Williams, P. A., & Wilsher, N. E.
- Affiliations
- Astex Pharmaceuticals, 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K.
- Corresponding author
- Tamanini, Emiliano
- ORCID
- Venue
- Journal of Medicinal Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-05-24
- Volume
- 60
- Issue
- 11
- Pages
- 4611-4625
- ISSN
- 0022-2623 (ISSN-L)
- 1520-4804
- OpenAlex
- W2613766095
- Cited by
- 72
- References
- 32
- Citations by year
- 2026: 3 · 2025: 2 · 2024: 6 · 2023: 10 · 2022: 8 · 2021: 11 · 2020: 10 · 2019: 15 · 2018: 6 · 2017: 1
- FWCI
- 3.68
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Medicinal Chemistry (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
- Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
- Keywords
- cIAP1, XIAP, inhibitor of apoptosis proteins, IAP antagonists, structure-based drug design, fragment-based drug discovery, oral bioavailability, chemical probes, apoptosis regulation, tumor resistance
- MeSH terms
- Animals, Heterocyclic Compounds, 2-Ring, Humans, Mice, Inbred BALB C, Piperazines, Structure-Activity Relationship, Mice, SCID, Crystallography, X-Ray, Cell Line, Tumor, Inhibitor of Apoptosis Proteins, Mice, X-Linked Inhibitor of Apoptosis Protein, Small Molecule Libraries, Drug Discovery, Peptidomimetics, HEK293 Cells
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