Evidence map›Paper›PMID 23686837›Full record

ArticleMolecular cancer therapeutics2013

Src mediates cigarette smoke-induced resistance to tyrosine kinase inhibitors in NSCLC cells.

Simone Filosto, David S Baston, Samuel Chung, Cathleen R Becker, Tzipora Goldkorn

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
5.2field-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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Molecular mechanisms of resistance in epidermal growth factor receptor-mutant lung adenocarcinomas.European respiratory review : an official journal of the European Respiratory Society · 2014
    Review
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

5 authors at 1 institution in 1 country.

Simone FilostoCenter for Comparative Respiratory Biology and Medicine (CCRBM), Genome and Biomedical Sciences Facility (GBSF), University of California School of Medicine, Davis, CA, USA.
David S Baston
Samuel Chung
Cathleen R Becker
Tzipora Goldkorn
University of California, Davis · US

Funding

MOLECULAR CHARACTERIZATION OF A LUNG SPHINGOMYELINASER01HL066189 · NHLBI · UNIVERSITY OF CALIFORNIA DAVIS · PI GOLDKORN, TZIPORA · 2001 to 2013
$2.7M
NHLBI NIH HHS HL-66189NHLBI NIH HHS R01 HL066189
6 · The paper itself

Abstract

The EGF receptor (EGFR) is a proto-oncogene commonly dysregulated in several cancers including non-small cell lung carcinoma (NSCLC) and, thus, is targeted for treatment using tyrosine kinase inhibitors (TKI) such as erlotinib. However, despite the efficacy observed in patients with NSCLC harboring oncogenic variants of the EGFR, general ineffectiveness of TKIs in patients with NSCLC who are current and former smokers necessitates identification of novel mechanisms to overcome this phenomenon. Previously, we showed that NSCLC cells harboring either wild-type (WT) EGFR or oncogenic mutant (MT) L858R EGFR become resistant to the effects of TKIs when exposed to cigarette smoke, evidenced by their autophosphorylation and prolonged downstream signaling. Here, we present Src as a target mediating cigarette smoke-induced resistance to TKIs in both WT EGFR- and L858R MT EGFR-expressing NSCLC cells. First, we show that cigarette smoke exposure of A549 cells leads to time-dependent activation of Src, which then abnormally binds to the WT EGFR causing TKI resistance, contrasting previous observations of constitutive binding between inactive Src and TKI-sensitive L858R MT EGFR. Next, we show that Src inhibition restores TKI sensitivity in cigarette smoke-exposed NSCLC cells, preventing EGFR autophosphorylation in the presence of erlotinib. Furthermore, we show that overexpression of a dominant-negative Src (Y527F/K295R) restores TKI sensitivity to A549 exposed to cigarette smoke. Importantly, the TKI resistance that emerges even in cigarette smoke-exposed L858R EGFR-expressing NSCLC cells could be eliminated with Src inhibition. Together, these findings offer new rationale for using Src inhibitors for treating TKI-resistant NSCLC commonly observed in smokers.

Indexed as

Antineoplastic AgentsCarcinoma, Non-Small-Cell LungCell Line, TumorCell SurvivalDrug Resistance, NeoplasmErbB ReceptorsGene Expression Regulation, NeoplasticHumansLung NeoplasmsMutationPhenotypePhosphorylationProtein BindingProtein Kinase InhibitorsProto-Oncogene MasSmokingAntineoplastic AgentsErbB ReceptorsMAS1 protein, humanProtein Kinase InhibitorsProto-Oncogene Massrc-Family Kinases

Identifiers

PMID23686837
PMCPMC4370317
OpenAlexW2123735209

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.