Cited by 117Lung Cancer Treatments and MutationsHER2/EGFR in Cancer ResearchProtein Kinase Regulation and GTPase Signaling

Cetuximab response of lung cancer-derived EGF receptor mutants is associated with asymmetric dimerization

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Cho, Jeonghee, Chen, Liang, Sangji, Naveen, Okabe, Takafumi, Yonesaka, Kimio, Francis, Joshua M., Flavin, Richard J., Johnson, William +8 more·2013·Cancer Research

Published version of a preprint

Abstract

Kinase domain mutations of the EGF receptor (EGFR) are common oncogenic events in lung adenocarcinoma. Here, we explore the dependency upon asymmetric dimerization of the kinase domain for activation of lung cancer-derived EGFR mutants. We show that whereas wild-type EGFR and the L858R mutant require dimerization for activation and oncogenic transformation, the exon 19 deletion, exon 20 insertion, and L858R/T790M EGFR mutants do not require dimerization. In addition, treatment with the monoclonal antibody, cetuximab, shrinks mouse lung tumors induced by the dimerization-dependent L858R mutant, but exerts only a modest effect on tumors driven by dimerization-independent EGFR mutants. These data imply that different EGFR mutants show differential requirements for dimerization and that disruption of dimerization may be among the antitumor mechanisms of cetuximab.

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  • Emerging clinical data show that C797S is detected in approximately 40% of EGFR mutant NSCLC patients with T790M who develop acquired resistance to AZD9291.

    “Emerging clinical data reveal that the C797S mutation is detected in ~ 40% of EGFR mutant NSCLC patients with T790M who develop acquired resistance to AZD9291(36).”

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Authors
Cho, J., Chen, L., Sangji, N., Okabe, T., Yonesaka, K., Francis, J. M., Flavin, R. J., Johnson, W., Kwon, J., Yu, S., Greulich, H., Johnson, B. E., Eck, M. J., Jänne, P. A., Wong, K.-K., & Meyerson, M.
Affiliations
  • Broad Institute (US)
  • Authors' Affiliations: Departments of 1Medical Oncology and 2Cancer Biology; 3Center for Cancer Genome Discovery, 4Lowe Center for Thoracic Oncology, and 5Center for Molecular Oncologic Pathology, Dana-Farber Cancer Institute; Departments of 6Medicine, Brigham and Women's Hospital; Departments of 7Biological Chemistry and Molecular Pharmacology and 8Pathology, Harvard Medical School, Boston, Massachusetts; 9Samsung Genome Institute, Samsung Medical Center, Seoul, Republic of Korea; and 10The Broad Institute of Harvard and MIT, Cambridge, Massachusetts
Corresponding author
  • Cho, Jeonghee
  • Meyerson, Matthew
Venue
Cancer Research
Published
2013-11-14
Volume
73
Issue
22
Pages
6770-6779
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W1986412478
Cited by
117
References
55
Citations by year
2026: 5 · 2025: 14 · 2024: 10 · 2023: 11 · 2022: 14 · 2021: 11 · 2020: 6 · 2019: 8 · 2018: 12 · 2017: 6 · 2016: 7 · 2015: 10 · 2014: 2 · 2013: 1
FWCI
5.43
Type
journal article
Language
en
Open access
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Food and Drug Administration
  • National Cancer Institute (R01CA116020, P01CA154303)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Health Sciences › Medicine › Oncology › HER2/EGFR in Cancer Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
cetuximab, EGFR mutation, lung adenocarcinoma, L858R mutation, exon 19 deletion, exon 20 insertion, T790M mutation, kinase domain, receptor activation, oncogenic transformation, monoclonal antibody therapy, anticancer mechanism
MeSH terms
Cetuximab, Adenocarcinoma, Animals, Antineoplastic Agents, Cell Transformation, Neoplastic, Cells, Cultured, Humans, Lung Neoplasms, Protein Conformation, Amino Acid Substitution, NIH 3T3 Cells, Mice, Protein Multimerization, Antibodies, Monoclonal, Humanized, ErbB Receptors

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