Cited by 328Cancer-related Molecular PathwaysHeat shock proteins researchPI3K/AKT/mTOR signaling in cancer

SAR405838: An Optimized Inhibitor of MDM2–p53 Interaction That Induces Complete and Durable Tumor Regression

Open access
Wang, Shaomeng, Sun, Wei, Zhao, Yujun, McEachern, Donna, Meaux, Isabelle, Barrière, Cédric, Stuckey, Jeanne A., Meagher, Jennifer L. +14 more·2014·Cancer Research

Published version of a preprint

Abstract

Blocking the oncoprotein murine double minute 2 (MDM2)–p53 protein–protein interaction has long been considered to offer a broad cancer therapeutic strategy, despite the potential risks of selecting tumors harboring p53 mutations that escape MDM2 control. In this study, we report a novel small-molecule inhibitor of the MDM2–p53 interaction, SAR405838 (MI-77301), that has been advanced into phase I clinical trials. SAR405838 binds to MDM2 with Ki = 0.88 nmol/L and has high specificity over other proteins. A cocrystal structure of the SAR405838:MDM2 complex shows that, in addition to mimicking three key p53 amino acid residues, the inhibitor captures additional interactions not observed in the p53–MDM2 complex and induces refolding of the short, unstructured MDM2 N-terminal region to achieve its high affinity. SAR405838 effectively activates wild-type p53 in vitro and in xenograft tumor tissue of leukemia and solid tumors, leading to p53-dependent cell-cycle arrest and/or apoptosis. At well-tolerated dose schedules, SAR405838 achieves either durable tumor regression or complete tumor growth inhibition in mouse xenograft models of SJSA-1 osteosarcoma, RS4;11 acute leukemia, LNCaP prostate cancer, and HCT-116 colon cancer. Remarkably, a single oral dose of SAR405838 is sufficient to achieve complete tumor regression in the SJSA-1 model. Mechanistically, robust transcriptional upregulation of PUMA induced by SAR405838 results in strong apoptosis in tumor tissue, leading to complete tumor regression. Our findings provide a preclinical basis upon which to evaluate SAR405838 as a therapeutic agent in patients whose tumors retain wild-type p53. Cancer Res; 74(20); 5855–65. ©2014 AACR.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1158/0008-5472.can-14-0799

Cites

42 of 42 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. [22]Bricogne G Blanc E Brandl M Flensburg C Keller P Paciorek W BUSTER Cambridge United Kingdom 2011

Cited by

Sorted by citations

Authors
Wang, S., Sun, W., Zhao, Y., McEachern, D., Meaux, I., Barrière, C., Stuckey, J. A., Meagher, J. L., Bai, L., Liu, L., Hoffman-Luca, C. G., Lu, J., Shangary, S., Yu, S., Bernard, D., Aguilar, A., Dos-Santos, O., Besret, L., Guerif, S., Pannier, P., Gorge-Bernat, D., & Debussche, L.
Affiliations
  • University of Michigan (US)
  • Sanofi (France) (FR)
  • 1University of Michigan Comprehensive Cancer Center, University of Michigan, Ann Arbor, Michigan.
  • 5Sanofi Oncology, Vitry-sur-Seine, France.
Corresponding author
Wang, Shaomeng
Venue
Cancer Research
Published
2014-10-14
Volume
74
Issue
20
Pages
5855-5865
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2055551025
Cited by
328
References
42
Citations by year
2026: 8 · 2025: 29 · 2024: 21 · 2023: 25 · 2022: 26 · 2021: 43 · 2020: 30 · 2019: 34 · 2018: 29 · 2017: 26 · 2016: 31 · 2015: 20 · 2014: 6
FWCI
14.17
Type
journal article
Language
en
Open access
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • U.S. Department of Energy (DE‐ AC02‐06CH11357, AC02‐06CH11357, 085P1000817, 06CH11357, DE-AC02-)
  • Sanofi
  • National Institutes of Health (DE-AC02–06CH11357, 085P1000817)
  • Michigan Technology Tri-Corridor (DE-AC02-06CH11357, 085P1000817)
  • National Cancer Institute (R01CA121279, P50CA069568, P30CA046592, P50CA186786)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
Keywords
p53-MDM2 interaction, small molecule inhibitors, p53 activation, co-crystal structure, PUMA, apoptosis, cell cycle arrest, tumor regression, osteosarcoma, acute leukemia, prostate cancer, colon cancer, xenograft models
MeSH terms
Animals, Antineoplastic Agents, Dogs, Drug Stability, Humans, Indoles, Protein Binding, Proto-Oncogene Proteins, Remission Induction, Spiro Compounds, Tumor Suppressor Protein p53, Apoptosis, Xenograft Model Antitumor Assays, HCT116 Cells, Cell Proliferation, Apoptosis Regulatory Proteins, Mice, Rats, Proto-Oncogene Proteins c-mdm2, Cell Cycle Checkpoints

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review