Evidence map›Paper›PMID 26337388›Full record

ArticleMolecular biology of the cell2015

Enhanced dimerization drives ligand-independent activity of mutant epidermal growth factor receptor in lung cancer.

Christopher C Valley, Donna J Arndt-Jovin, Narain Karedla, Mara P Steinkamp, Alexey I Chizhik, William S Hlavacek, Bridget S Wilson, Keith A Lidke, Diane S Lidke

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

61 citing papers in PubMed, 98 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. The role of kinase domain dimerization in EGFR activation.Structure (London, England : 1993) · 2026
    Article
  7. Single-Molecule FRET-Tracking of InlB-Activated MET Receptors in Living Cells.Small (Weinheim an der Bergstrasse, Germany) · 2026
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Allele-specific activation, enzyme kinetics, and inhibitor sensitivities of EGFR exon 19 deletion mutations in lung cancer.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article

1 more citing papers are in PubMed but not listed here.

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

9 authors at 4 institutions in 2 countries.

Christopher C ValleyDepartment of Pathology and Cancer Research and Treatment Center, University of New Mexico, Albuquerque, NM 87131.
Donna J Arndt-JovinLaboratory of Cellular Dynamics, Max Planck Institute for Biophysical Chemistry, 37077 Göttingen, Germany.
Narain KaredlaIII. Institute of Physics, Georg-August University of Göttingen, 37077 Göttingen, Germany.
Mara P SteinkampDepartment of Pathology and Cancer Research and Treatment Center, University of New Mexico, Albuquerque, NM 87131.
Alexey I ChizhikIII. Institute of Physics, Georg-August University of Göttingen, 37077 Göttingen, Germany.
William S HlavacekTheoretical Biology and Biophysics Group, Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545.
Bridget S WilsonDepartment of Pathology and Cancer Research and Treatment Center, University of New Mexico, Albuquerque, NM 87131.
Keith A LidkeDepartment of Physics and Astronomy, University of New Mexico, Albuquerque, NM 87131.
Diane S LidkeDepartment of Pathology and Cancer Research and Treatment Center, University of New Mexico, Albuquerque, NM 87131 DLidke@salud.unm.edu.
University of New Mexico · USUniversity of Göttingen · DELos Alamos National Laboratory · USMax Planck Institute for Biophysical Chemistry · DE

Funding

WOMEN'S CANCERS RESEARCH PROGRAMP30CA118100 · NCI · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI Yolanda Sanchez · 2005 to 2026
$57.1M
UNM TRAININGP50GM085273 · NIGMS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI EDWARDS, JEREMY S · 2009 to 2018
$26.1M
A Spatially coarse-grained, rule-based frame work for modeling large molecularR01GM104973 · NIGMS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI EDWARDS, JEREMY S · 2012 to 2015
$1.3M
NCI NIH HHS P30 CA118100NIGMS NIH HHS P50 GM085273NIGMS NIH HHS P50GM085273NIGMS NIH HHS R01 GM104973
6 · The paper itself

Abstract

Mutations within the epidermal growth factor receptor (EGFR/erbB1/Her1) are often associated with tumorigenesis. In particular, a number of EGFR mutants that demonstrate ligand-independent signaling are common in non-small cell lung cancer (NSCLC), including kinase domain mutations L858R (also called L834R) and exon 19 deletions (e.g., ΔL747-P753insS), which collectively make up nearly 90% of mutations in NSCLC. The molecular mechanisms by which these mutations confer constitutive activity remain unresolved. Using multiple subdiffraction-limit imaging modalities, we reveal the altered receptor structure and interaction kinetics of NSCLC-associated EGFR mutants. We applied two-color single quantum dot tracking to quantify receptor dimerization kinetics on living cells and show that, in contrast to wild-type EGFR, mutants are capable of forming stable, ligand-independent dimers. Two-color superresolution localization microscopy confirmed ligand-independent aggregation of EGFR mutants. Live-cell Förster resonance energy transfer measurements revealed that the L858R kinase mutation alters ectodomain structure such that unliganded mutant EGFR adopts an extended, dimerization-competent conformation. Finally, mutation of the putative dimerization arm confirmed a critical role for ectodomain engagement in ligand-independent signaling. These data support a model in which dysregulated activity of NSCLC-associated kinase mutants is driven by coordinated interactions involving both the kinase and extracellular domains that lead to enhanced dimerization.

Indexed as

AnimalsCarcinoma, Non-Small-Cell LungCell ProliferationCell Transformation, NeoplasticCHO CellsCricetulusEGF Family of ProteinsErbB ReceptorsHeLa CellsHumansLung NeoplasmsMicroscopy, ConfocalMutationPhosphorylationProtein AggregatesProtein Kinase InhibitorsEGF Family of ProteinsEGFR protein, humanErbB ReceptorsProtein AggregatesProtein Kinase Inhibitors

Identifiers

PMID26337388
PMCPMC4710239
OpenAlexW2279058190

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.