Evidence map›Paper›PMID 29158469›Full record

ArticleMolecular cancer therapeutics2018

Molecular Basis for Necitumumab Inhibition of EGFR Variants Associated with Acquired Cetuximab Resistance.

Atrish Bagchi, Jaafar N Haidar, Scott W Eastman, Michal Vieth, Michael Topper, Michelle D Iacolina, Jason M Walker, Amelie Forest, Yang Shen, Ruslan D Novosiadly and 1 more

Abstract read
In one paragraph

Article in Molecular cancer therapeutics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
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  5. Analysis of EGFR binding hotspots for design of new EGFR inhibitory biologics.Protein science : a publication of the Protein Society · 2024
    Review
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  13. Modeling of Protein Complexes.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  14. Review
  15. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Atrish Bagchi *Graduate Group in Biochemistry and Molecular Biophysics, University of Pennsylvania, Philadelphia, Pennsylvania.
Jaafar N Haidar *Lilly Research Laboratories, Eli Lilly & Company, New York, New York.
Scott W EastmanLilly Research Laboratories, Eli Lilly & Company, New York, New York.
Michal ViethLilly Research Laboratories, Eli Lilly & Company, Indianapolis, Indiana.
Michael TopperLilly Research Laboratories, Eli Lilly & Company, New York, New York.
Michelle D IacolinaLilly Research Laboratories, Eli Lilly & Company, New York, New York.
Jason M WalkerLilly Research Laboratories, Eli Lilly & Company, New York, New York.
Amelie ForestLilly Research Laboratories, Eli Lilly & Company, New York, New York.
Yang ShenLilly Research Laboratories, Eli Lilly & Company, New York, New York.
Ruslan D NovosiadlyLilly Research Laboratories, Eli Lilly & Company, New York, New York.
Kathryn M FergusonDepartment of Physiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. kathryn.ferguson@yale.edu.
Eli Lilly (United States) · USUniversity of Pennsylvania · USYale Cancer Center · US

Funding

STRUCTURAL BIOLOGY TRAINING PROGRAMT32GM008275 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI WAND, A. JOSHUA · 1988 to 2018
$6.0M
Understanding EGF receptor activation by growth factors and oncogenic mutationsR01CA198164 · NCI · YALE UNIVERSITY · PI FERGUSON, KATHRYN M, LEMMON, MARK A · 2015 to 2024
$5.2M
Analysis of active and inactive EGFR conformationsR01CA112552 · NCI · YALE UNIVERSITY · PI FERGUSON, KATHRYN M · 2005 to 2015
$2.4M
NCI NIH HHS R01 CA112552NCI NIH HHS R01 CA198164NIGMS NIH HHS T32 GM008275
6 · The paper itself

Abstract

Acquired resistance to cetuximab, an antibody that targets the EGFR, impacts clinical benefit in head and neck, and colorectal cancers. One of the mechanisms of resistance to cetuximab is the acquisition of mutations that map to the cetuximab epitope on EGFR and prevent drug binding. We find that necitumumab, another FDA-approved EGFR antibody, can bind to EGFR that harbors the most common cetuximab-resistant substitution, S468R (or S492R, depending on the amino acid numbering system). We determined an X-ray crystal structure to 2.8 Å resolution of the necitumumab Fab bound to an S468R variant of EGFR domain III. The arginine is accommodated in a large, preexisting cavity in the necitumumab paratope. We predict that this paratope shape will be permissive to other epitope substitutions, and show that necitumumab binds to most cetuximab- and panitumumab-resistant EGFR variants. We find that a simple computational approach can predict with high success which EGFR epitope substitutions abrogate antibody binding. This computational method will be valuable to determine whether necitumumab will bind to EGFR as new epitope resistance variants are identified. This method could also be useful for rapid evaluation of the effect on binding of alterations in other antibody/antigen interfaces. Together, these data suggest that necitumumab may be active in patients who are resistant to cetuximab or panitumumab through EGFR epitope mutation. Furthermore, our analysis leads us to speculate that antibodies with large paratope cavities may be less susceptible to resistance due to mutations mapping to the antigen epitope.

Indexed as

Antibodies, MonoclonalAntibodies, Monoclonal, HumanizedCell Line, TumorCetuximabDrug Resistance, NeoplasmErbB ReceptorsHumansAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedCetuximabEGFR protein, humanErbB Receptorsnecitumumab

Identifiers

PMID29158469
PMCPMC5925748
OpenAlexW2770911231

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.