Cited by 45Lung Cancer Treatments and MutationsMelanoma and MAPK PathwaysProtein Kinase Regulation and GTPase Signaling

MEK inhibitors block growth of lung tumours with mutations in ataxia–telangiectasia mutated

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Smida, Michal, Fece de la Cruz, Ferran, Kerzendorfer, Claudia, Uras, Iris Z., Mair, Barbara, Mazouzi, Abdelghani, Suchankova, Tereza, Konopka, Tomasz +8 more·2016·Nature Communications

Abstract

Lung cancer is the leading cause of cancer deaths, and effective treatments are urgently needed. Loss-of-function mutations in the DNA damage response kinase ATM are common in lung adenocarcinoma but directly targeting these with drugs remains challenging. Here we report that ATM loss-of-function is synthetic lethal with drugs inhibiting the central growth factor kinases MEK1/2, including the FDA-approved drug trametinib. Lung cancer cells resistant to MEK inhibition become highly sensitive upon loss of ATM both in vitro and in vivo. Mechanistically, ATM mediates crosstalk between the prosurvival MEK/ERK and AKT/mTOR pathways. ATM loss also enhances the sensitivity of KRAS- or BRAF-mutant lung cancer cells to MEK inhibition. Thus, ATM mutational status in lung cancer is a mechanistic biomarker for MEK inhibitor response, which may improve patient stratification and extend the applicability of these drugs beyond RAS and BRAF mutant tumours.

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  • In Kras-mutant LUAD mouse models, deleting Atm raises sensitivity to PARP inhibitors, ATR inhibitors, and radiation.

    “genetic deletion of Atm is associated with increased sensitivity to poly(ADP-ribose) polymerase (PARP) and ATR inhibitors as well as to radiation therapy in mouse models of Kras-mutant LUAD168, 169.”
  • ATM co-alterations make KRAS- and BRAF-mutant NSCLC lines more sensitive to apoptosis caused by MEK inhibition.

    “ATM co-alterations increase the sensitivity of KRAS and BRAF-mutant NSCLC cell lines to MEK inhibitor-induced apoptosis”

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  1. Zou Y., Wang Q., Li B., Xie B. & Wang W. Temozolomide induces autophagy via ATMAMPKULK1 pathways in glioma. Mol. Med. Rep. 10, 411– 416 (2014). 24737504

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Authors
Smida, M., Fece de la Cruz, F., Kerzendorfer, C., Uras, I. Z., Mair, B., Mazouzi, A., Suchankova, T., Konopka, T., Katz, A. M., Paz, K., Nagy-Bojarszky, K., Muellner, M. K., Bago-Horvath, Z., Haura, E. B., Loizou, J. I., & Nijman, S. M. B.
Affiliations
  • Austrian Academy of Sciences (AT)
  • Champions Oncology (United States) (US)
  • Moffitt Cancer Center (US)
Corresponding author
Nijman, Sebastian M. B.
Venue
Nature Communications
Published
2016-12-06
Volume
7
Issue
1
Pages
13701-13701
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2559957558
Cited by
44
References
63
Citations by year
2026: 2 · 2025: 1 · 2024: 5 · 2023: 2 · 2022: 5 · 2021: 8 · 2020: 7 · 2019: 2 · 2018: 5 · 2017: 7
FWCI
4.17
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • ASEP (submittedVersion, public-domain)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Merck KGaA
  • European Commission (2007–2013, 321602, FP7 2007-2013, FP7/2007)
  • Vienna Science and Technology Fund (LS09-009)
  • Österreichischen Akademie der Wissenschaften
  • Ministerstvo Školství, Mládeže a Tělovýchovy (CEITEC2020, CZ.1.07/2.3.00/30.0030, LQ1601)
  • Austrian Science Fund (P24766, P 21768)
  • Central European Institute of Technology (LQ1601)
  • FP7 Ideas: European Research Council (311166)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Melanoma and MAPK Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
MEK inhibitors, trametinib, ataxia telangiectasia, lung adenocarcinoma, synthetic lethality, MEK/ERK signaling, KRAS mutation, BRAF mutation, drug resistance, predictive biomarkers, patient stratification
MeSH terms
Animals, Benzamides, Diphenylamine, Humans, Lung Neoplasms, Mice, Nude, Mutation, Pyridones, Pyrimidinones, Thiophenes, Urea, ras Proteins, Xenograft Model Antitumor Assays, RNA Interference, Cell Line, Tumor, Protein Kinase Inhibitors, Proto-Oncogene Proteins B-raf, Cell Proliferation, Ataxia Telangiectasia Mutated Proteins

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