Evidence map›Paper›PMID 32897190›Full record

ArticleeLife2020

Marked synergy by vertical inhibition of EGFR signaling in NSCLC spheroids shows SOS1 is a therapeutic target in EGFR-mutated cancer.

Patricia L Theard, Erin Sheffels, Nancy E Sealover, Amanda J Linke, David J Pratico, Robert L Kortum

Open access · goldAbstract read
In one paragraph

Article in eLife, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.8field-weighted citation impact, top 3% 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

36 citing papers in PubMed, 69 citations in OpenAlex.

  1. Article
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  9. SOS1 inhibitor BI-3406 shows in vivo antitumor activity akin to genetic ablation and synergizes with a KRASProceedings of the National Academy of Sciences of the United States of America · 2025
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  10. Article
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  14. MUC1-C Is a Common Driver of Acquired Osimertinib Resistance in NSCLC.Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer · 2024
    Article
  15. iScience · 2024
    Article
  16. Article
  17. SOS1 and KSR1 modulate MEK inhibitor responsiveness to target resistant cell populations based on PI3K and KRAS mutation status.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  18. Review
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  20. SOS2 regulates the threshold of mutantbioRxiv : the preprint server for biology · 2023
    Article
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

6 authors at 1 institution in 1 country.

Patricia L TheardDepartment of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, United States.
Erin SheffelsDepartment of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, United States.
Nancy E SealoverDepartment of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, United States.
Amanda J LinkeDepartment of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, United States.
David J PraticoDepartment of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, United States.
Robert L KortumDepartment of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, United States.ORCID 0000-0002-1634-4882
Uniformed Services University of the Health Sciences · US

Funding

Congressionally Directed Medical Research Programs LC160222Congressionally Directed Medical Research Programs LC180213
6 · The paper itself

Abstract

Drug treatment of 3D cancer spheroids more accurately reflects in vivo therapeutic responses compared to adherent culture studies. In EGFR-mutated lung adenocarcinoma, EGFR-TKIs show enhanced efficacy in spheroid cultures. Simultaneous inhibition of multiple parallel RTKs further enhances EGFR-TKI effectiveness. We show that the common RTK signaling intermediate SOS1 was required for 3D spheroid growth of EGFR-mutated NSCLC cells. Using two distinct measures of pharmacologic synergy, we demonstrated that SOS1 inhibition strongly synergized with EGFR-TKI treatment only in 3D spheroid cultures. Combined EGFR- and SOS1-inhibition markedly inhibited Raf/MEK/ERK and PI3K/AKT signaling. Finally, broad assessment of the pharmacologic landscape of drug-drug interactions downstream of mutated EGFR revealed synergy when combining an EGFR-TKI with inhibitors of proximal signaling intermediates SOS1 and SHP2, but not inhibitors of downstream RAS effector pathways. These data indicate that vertical inhibition of proximal EGFR signaling should be pursued as a potential therapy to treat EGFR-mutated tumors.

Indexed as

AcrylamidesAniline CompoundsAntineoplastic AgentsApoptosisCarcinoma, Non-Small-Cell LungCell Line, TumorCell ProliferationDrug SynergismErbB ReceptorsHEK293 CellsHumansIndolesLung NeoplasmsMutationPyrimidinesSignal TransductionAcrylamidesAniline CompoundsAntineoplastic AgentsEGFR protein, humanErbB ReceptorsIndolesosimertinibPyrimidinesSOS1 ProteinSOS1 protein, humancancer biologyhumanlung adenocarcinomason of sevenlessspheroidssynergy

Identifiers

PMID32897190
PMCPMC7478890
OpenAlexW3084211591

What OpenQuestion holds

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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.