Cited by 1,889Colorectal Cancer Treatments and StudiesLung Cancer Treatments and MutationsCancer Genomics and Diagnostics

The DOI matches its Crossref record; 23 of the 25 references it cites were found in a registry or an index.

Emergence of KRAS mutations and acquired resistance to anti-EGFR therapy in colorectal cancer

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Abstract

A main limitation of therapies that selectively target kinase signalling pathways is the emergence of secondary drug resistance. Cetuximab, a monoclonal antibody that binds the extracellular domain of epidermal growth factor receptor (EGFR), is effective in a subset of KRAS wild-type metastatic colorectal cancers. After an initial response, secondary resistance invariably ensues, thereby limiting the clinical benefit of this drug. The molecular bases of secondary resistance to cetuximab in colorectal cancer are poorly understood. Here we show that molecular alterations (in most instances point mutations) of KRAS are causally associated with the onset of acquired resistance to anti-EGFR treatment in colorectal cancers. Expression of mutant KRAS under the control of its endogenous gene promoter was sufficient to confer cetuximab resistance, but resistant cells remained sensitive to combinatorial inhibition of EGFR and mitogen-activated protein-kinase kinase (MEK). Analysis of metastases from patients who developed resistance to cetuximab or panitumumab showed the emergence of KRAS amplification in one sample and acquisition of secondary KRAS mutations in 60% (6 out of 10) of the cases. KRAS mutant alleles were detectable in the blood of cetuximab-treated patients as early as 10 months before radiographic documentation of disease progression. In summary, the results identify KRAS mutations as frequent drivers of acquired resistance to cetuximab in colorectal cancers, indicate that the emergence of KRAS mutant clones can be detected non-invasively months before radiographic progression and suggest early initiation of a MEK inhibitor as a rational strategy for delaying or reversing drug resistance.

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Crossref · 10.1038/nature11156

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Metadata

Authors
Misale, S., Yaeger, R., Hobor, S., Scala, E., Janakiraman, M., Liska, D., Valtorta, E., Schiavo, R., Buscarino, M., Siravegna, G., Bencardino, K., Cercek, A., Chen, C.-T., Veronese, S., Zanon, C., Sartore-Bianchi, A., Gambacorta, M., Gallicchio, M., Vakiani, E., Boscaro, V., Medico, E., Weiser, M., Siena, S., Di Nicolantonio, F., Solit, D., & Bardelli, A.
Affiliations
  • Candiolo Cancer Institute (IT)
  • Memorial Sloan Kettering Cancer Center (US)
  • Azienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda (IT)
  • University of Turin (IT)
  • IFOM (IT)
Corresponding author
  • Solit, David
  • Bardelli, Alberto
Venue
Nature
Published
2012-06
Volume
486
Issue
7404
Pages
532-536
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2062109911
Cited by
1,889
References
25
Citations by year
2026: 75 · 2025: 73 · 2024: 81 · 2023: 115 · 2022: 129 · 2021: 138 · 2020: 134 · 2019: 163 · 2018: 161 · 2017: 171 · 2016: 177 · 2015: 163 · 2014: 145 · 2013: 133 · 2012: 28
FWCI
73.66
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Institutional Research Information System University of Turin (University of Turin) (submittedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Memorial Sloan-Kettering Cancer Center
  • European Commission (259015)
  • Associazione Italiana per la Ricerca sul Cancro (5 x mille)
  • Regione Piemonte
  • National Cancer Institute (R01CA127240, P30CA008748, T32CA009207, R25CA020449)
Topics
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Treatments and Studies
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
Keywords
KRAS mutation, acquired drug resistance, anti-EGFR therapy, cetuximab resistance, colorectal cancer, EGFR, K-ras oncogene, circulating tumor DNA, tumor subclones, MEK inhibition, combination therapy, metastatic colorectal cancer, tumor heterogeneity
MeSH terms
Cetuximab, Panitumumab, Alleles, Antibodies, Monoclonal, Humans, Mutation, Promoter Regions, Genetic, Proto-Oncogene Proteins, Genes, ras, Colorectal Neoplasms, Proto-Oncogene Proteins p21(ras), Disease Progression, ras Proteins, Drug Resistance, Neoplasm, Mitogen-Activated Protein Kinase Kinases, Cell Line, Tumor, Antibodies, Monoclonal, Humanized, ErbB Receptors

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