Evidence map›Paper›PMID 24898067›Full record

ArticleMolecular cancer2014

Trastuzumab emtansine is active on HER-2 overexpressing NSCLC cell lines and overcomes gefitinib resistance.

Daniele Cretella, Francesca Saccani, Federico Quaini, Caterina Frati, Costanza Lagrasta, Mara Bonelli, Cristina Caffarra, Andrea Cavazzoni, Claudia Fumarola, Maricla Galetti and 6 more

Open access · goldAbstract read
In one paragraph

Article in Molecular cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.0field-weighted citation impact, top 7% 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

29 citing papers in PubMed, 67 citations in OpenAlex.

  1. Trial
  2. Article
  3. Effects of trastuzumab emtansine on canine osteosarcoma cells.The Journal of veterinary medical science · 2025
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  7. Association betweenAnnals of translational medicine · 2022
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  8. Review
  9. Activity of trastuzumab emtansine (T-DM1) in 3D cell culture.Breast cancer research and treatment · 2021
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  11. Review
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  14. Journal of Cancer · 2020
    Article
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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

16 authors at 2 institutions in 1 country.

Daniele Cretella
Francesca Saccani
Federico Quaini
Caterina Frati
Costanza Lagrasta
Mara Bonelli
Cristina Caffarra
Andrea Cavazzoni
Claudia Fumarola
Maricla Galetti
Silvia La Monica
Luca Ampollini
Marcello Tiseo
Andrea Ardizzoni
Pier Giorgio Petronini
Roberta R AlfieriDepartment of Clinical and Experimental Medicine, University of Parma, Via Gramsci 14, Parma, 43126, Italy. roberta.alfieri@unipr.it.
University of Parma · ITIstituto Nazionale per l'Assicurazione Contro gli Infortuni sul Lavoro · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHER-2 represents a relatively new therapeutic target for non small cell lung cancer (NSCLC) patients. The incidence for reported HER-2 overexpression/amplification/mutations ranges from 2 to 20% in NSCLC. Moreover, HER-2 amplification is a potential mechanism of resistance to tyrosine kinase inhibitors of the epidermal growth factor receptor (EGFR-TKI) (about 10% of cases). T-DM1, trastuzumab emtansine is an antibody-drug conjugate composed by the monoclonal antibody trastuzumab and the microtubule polymerization inhibitor DM1. The activity of T-DM1 has been studied in breast cancer but the role of T-DM1 in lung cancer remains unexplored.

methodsAntiproliferative and proapoptotic effects of T-DM1 have been investigated in different NSCLC cell lines by MTT, crystal violet staining, morphological study and Western blotting. HER-2 expression and cell cycle were evaluated by flow cytometry and Western blotting. Antibody dependent cell cytotoxicity (ADCC) was measured with a CytoTox assay. Xenografted mice model has been generated using a NSCLC cell line to evaluate the effect of T-DM1 on tumor growth. Moreover, a morphometric and immunohistochemical analysis of tumor xenografts was conducted.

resultsIn this study we investigated the effect of T-DM1 in a panel of NSCLC cell lines with different HER-2 expression levels, in H1781 cell line carrying HER-2 mutation and in gefitinib resistant HER-2 overexpressing PC9/HER2cl1 cell clone. T-DM1 efficiently inhibited proliferation with arrest in G2-M phase and induced cell death by apoptosis in cells with a significant level of surface expression of HER-2. Antibody-dependent cytotoxicity assay documented that T-DM1 maintained the same activity of trastuzumab. Our data also suggest that targeting HER-2 with T-DM1 potentially overcomes gefitinib resistance. In addition a correlation between cell density/tumor size with both HER-2 expression and T-DM1 activity was established in vitro and in an in vivo xenograft model.

conclusionsOur results indicate that targeting HER-2 with T-DM1 may offer a new therapeutic approach in HER-2 over-expressing lung cancers including those resistant to EGFR TKIs.

Indexed as

AnimalsAntibodies, Monoclonal, HumanizedAntineoplastic AgentsCarcinoma, Non-Small-Cell LungCell Line, TumorDrug Resistance, NeoplasmErb-b2 Receptor Tyrosine KinasesFemaleGefitinibGene ExpressionHumansImmunoconjugatesLung NeoplasmsMaytansineMiceMice, NudeAntibodies, Monoclonal, HumanizedAntineoplastic AgentsERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesGefitinibImmunoconjugatesMaytansineQuinazolinesTrastuzumab

Identifiers

PMID24898067
PMCPMC4058446
OpenAlexW2119870604

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.