Cited by 65Cancer-related Molecular PathwaysChromatin Remodeling and CancerPI3K/AKT/mTOR signaling in cancer

Resistance mechanisms to TP53-MDM2 inhibition identified by in vivo piggyBac transposon mutagenesis screen in an Arf −/− mouse model

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Chapeau, Emilie A., Gembarska, Agnieszka, Durand, Eric Y., Mandon, Emeline, Estadieu, Claire, Romanet, Vincent, Wiesmann, Marion, Tiedt, Ralph +14 more·2017·Proceedings of the National Academy of Sciences

Abstract

Significance: Emergence of resistance to targeted therapy constitutes a limitation to long-term clinical benefits in many instances. To anticipate potential mechanisms of resistance to double minute 2 protein (MDM2) inhibitors, we performed a piggyBac insertional mutagenesis screen in a cohort of allografts with an underlying CDKN2A deletion, in the presence and absence of the MDM2 inhibitor HDM201. Among the most frequent events conferring resistance, we found several mechanisms converging on direct or indirect loss-of-function inactivation of tumor protein 53 (TP53), as well as activation of the antiapoptotic B-cell lymphoma-extra large ( Bcl-xL ) gene. Importantly, our findings were confirmed in patient-derived xenograft models, underlining the benefit of large-scale in vivo forward genetic screening to identify potential resistance mechanisms to targeted therapeutics.

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Registry

Crossref · 10.1073/pnas.1620262114

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58 of 58 references verified0 citation errors · 0 not checkable

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  • NVP-HDM201 prevents p53 degradation by interfering with the interaction between human and mouse MDM2-p53, and has good pharmacokinetic and pharmacodynamic characteristics in animals, as well as good oral bioavailability.

    “It prevents p53 degradation by interfering with the interaction between human and mouse MDM2-p53, and has good pharmacokinetic and pharmacodynamic characteristics in animals, as well as good oral bioavailability.”
  • In preclinical studies, both once daily and once every three weeks dosing regimens of NVP-HDM201 showed comparable long-term efficacy.

    “In preclinical studies, both once daily and once every three weeks dosing regimens showed comparable long-term efficacy.393,394”
  • NVP-HDM201 (siremadlin) is an imidazolpyrrolidone analog developed by Novartis that has demonstrated highly favorable in vivo properties as an orally effective and selective MDM2-p53 inhibitor.

    “NVP-HDM201 (147), also known as siremadlin, is an imidazolpyrrolidone analog developed by Novartis that has demonstrated highly favorable in vivo properties as an orally effective and selective MDM2-p53 inhibitor and recently entered phase I clinical trials in cancer patients.”

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Authors
Chapeau, E. A., Gembarska, A., Durand, E. Y., Mandon, E., Estadieu, C., Romanet, V., Wiesmann, M., Tiedt, R., Lehar, J., de Weck, A., Rad, R., Barys, L., Jeay, S., Ferretti, S., Kauffmann, A., Sutter, E., Grevot, A., Moulin, P., Murakami, M., Sellers, W. R., Hofmann, F., & Jensen, M. R.
Affiliations
  • Novartis Institutes for BioMedical Research (CH)
  • Novartis (Switzerland) (CH)
  • Oncology Disease Area, Novartis Institutes for BioMedical Research, Cambridge, MA 02139;
  • Oncology Disease Area, Novartis Institutes for BioMedical Research, 4056 Basel, Switzerland;
  • German Cancer Research Center (DE)
Venue
Proceedings of the National Academy of Sciences
Published
2017-03-06
Volume
114
Issue
12
Pages
3151-3156
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2593682768
Cited by
64
References
59
Citations by year
2026: 4 · 2025: 9 · 2024: 6 · 2023: 10 · 2022: 4 · 2021: 10 · 2020: 5 · 2019: 8 · 2018: 7 · 2017: 1
FWCI
2.53
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion)
Funders
  • Novartis (no grant)
  • German Research Council (SFB1243)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
Keywords
drug resistance mechanisms, MDM2 inhibitors, forward genetic screen, CDKN2A deletion, p53 inactivation, anti-apoptotic signaling, patient-derived xenografts, targeted therapy
MeSH terms
Animals, Antineoplastic Agents, Cell Transformation, Neoplastic, Disease Models, Animal, DNA Transposable Elements, Genetic Vectors, Humans, Neoplasms, Biomarkers, Tumor, Tumor Suppressor Protein p53, Mutagenesis, Insertional, Mice, Knockout, Drug Resistance, Neoplasm, Genetic Drift, bcl-X Protein, Mice, Proto-Oncogene Proteins c-mdm2, Kaplan-Meier Estimate, Allografts

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