Cited by 440Cell death mechanisms and regulationCancer-related Molecular PathwaysSynthesis and biological activity

Potent and selective small-molecule MCL-1 inhibitors demonstrate on-target cancer cell killing activity as single agents and in combination with ABT-263 (navitoclax)

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Leverson, J D, Zhang, H, Chen, J, Tahir, S K, Phillips, D C, Xue, J, Nimmer, P, Jin, S +20 more·2015·Cell Death & Disease

Abstract

The anti-apoptotic protein MCL-1 is a key regulator of cancer cell survival and a known resistance factor for small-molecule BCL-2 family inhibitors such as ABT-263 (navitoclax), making it an attractive therapeutic target. However, directly inhibiting this target requires the disruption of high-affinity protein–protein interactions, and therefore designing small molecules potent enough to inhibit MCL-1 in cells has proven extremely challenging. Here, we describe a series of indole-2-carboxylic acids, exemplified by the compound A-1210477, that bind to MCL-1 selectively and with sufficient affinity to disrupt MCL-1–BIM complexes in living cells. A-1210477 induces the hallmarks of intrinsic apoptosis and demonstrates single agent killing of multiple myeloma and non-small cell lung cancer cell lines demonstrated to be MCL-1 dependent by BH3 profiling or siRNA rescue experiments. As predicted, A-1210477 synergizes with the BCL-2/BCL-X L inhibitor navitoclax to kill a variety of cancer cell lines. This work represents the first description of small-molecule MCL-1 inhibitors with sufficient potency to induce clear on-target cellular activity. It also demonstrates the utility of these molecules as chemical tools for dissecting the basic biology of MCL-1 and the promise of small-molecule MCL-1 inhibitors as potential therapeutics for the treatment of cancer.

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Authors
Leverson, J. D., Zhang, H., Chen, J., Tahir, S. K., Phillips, D. C., Xue, J., Nimmer, P., Jin, S., Smith, M., Xiao, Y., Kovar, P., Tanaka, A., Bruncko, M., Sheppard, G. S., Wang, L., Gierke, S., Kategaya, L., Anderson, D. J., Wong, C., Eastham-Anderson, J., Ludlam, M. J. C., Sampath, D., Fairbrother, W. J., Wertz, I., Rosenberg, S. H., Tse, C., Elmore, S. W., & Souers, A. J.
Affiliations
  • AbbVie (United States) (US)
  • Genentech (US)
Corresponding author
Leverson, J D
Venue
Cell Death & Disease
Published
2015-01-15
Volume
6
Issue
1
Pages
e1590-e1590
ISSN
2041-4889 (ISSN-L)
OpenAlex
W2059416155
Cited by
440
References
72
Citations by year
2026: 7 · 2025: 16 · 2024: 21 · 2023: 23 · 2022: 22 · 2021: 31 · 2020: 41 · 2019: 60 · 2018: 61 · 2017: 59 · 2016: 71 · 2015: 25
FWCI
32.00
Type
journal article
Language
en
Open access
Locations
  • Cell Death and Disease (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Genentech
  • Japan Society for the Promotion of Science (26860331)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Physical Sciences › Chemistry › Organic Chemistry › Synthesis and biological activity
Keywords
Mcl-1 inhibitors, indole-2-carboxylic acid, navitoclax, BCL-2 inhibitor, mitochondrial apoptosis, multiple myeloma, non-small cell lung cancer, drug synergy, BH3 profiling, protein-protein interaction inhibitors
MeSH terms
Bcl-2-Like Protein 11, Aniline Compounds, Carboxylic Acids, Cell Survival, Drug Synergism, Humans, Indoles, Membrane Proteins, Neoplasms, Proto-Oncogene Proteins, Sulfonamides, Apoptosis, Cell Line, Tumor, Apoptosis Regulatory Proteins, Small Molecule Libraries, Myeloid Cell Leukemia Sequence 1 Protein

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