Evidence map›Paper›PMID 16682622›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2006

A model of acquired autoresistance to a potent ErbB2 tyrosine kinase inhibitor and a therapeutic strategy to prevent its onset in breast cancer.

Wenle Xia, Sarah Bacus, Priti Hegde, Intisar Husain, Jay Strum, Leihua Liu, Georgina Paulazzo, Ljuba Lyass, Patricia Trusk, Jason Hill and 2 more

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04034589 (Phase II Study of Pyrotinib in Combination With Fulvestrant in Patients With Human Epidermal Growth Factor Receptor 2), which is not on this map. Cited by 177 papers.

0numbers the graph read from it
0cells of the map it votes in
177citing papers in PubMed
12.7field-weighted citation impact, top 1% 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.

NCT04034589 phase2unknown statusnot on this mapstarted 2019, after this paper: background citation

Phase II Study of Pyrotinib in Combination With Fulvestrant in Patients With Human Epidermal Growth Factor Receptor 2 (HER2) Positive,Hormone Receptor(HR)-Positive Metastatic Breast Cancer

TypeinterventionalSponsorSun Yat-Sen Memorial Hospital of Sun Yat-Sen UniversityRan2019 to 2022Enrolled46ConditionsMetastatic Breast CancerArmsPyrotinib combined with fulvestrant
3 · Its place in the literature

Who cites it

177 citing papers in PubMed, 377 citations in OpenAlex.

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  10. Advances in Targeting HER2 across Cancer Subtypes: A Pan-Tumor Approach.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026
    Review
  11. Can neoadjuvant chemotherapy be replaced with immune checkpoint blockade combined with dual anti-HER2 antibodies for HER2-enriched breast cancer?Translational breast cancer research : a journal focusing on translational research in breast cancer · 2026
    Article
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117 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

12 authors at 3 institutions in 1 country.

Wenle XiaDepartment of Oncology Biology, GlaxoSmithKline, Research Triangle Park, NC 27709, USA.
Sarah Bacus
Priti Hegde
Intisar Husain
Jay Strum
Leihua Liu
Georgina Paulazzo
Ljuba Lyass
Patricia Trusk
Jason Hill
Jennifer Harris
Neil L Spector
Research Triangle Park Foundation · USTargeted Medical Pharma (United States) · USGlaxoSmithKline (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The development of acquired resistance to ErbB2 tyrosine kinase inhibitors limits the clinical efficacy of this class of cancer therapeutics. Little is known about the mechanism(s) of acquired resistance to these agents. Here we establish a model of acquired resistance to N-{3-chloro-4-[(3-fluorobenzyl) oxy]phenyl}-6-[5-({[2 (methylsulfonyl)ethyl]amino}methyl)-2-furyl]-4-quinazolinamine (lapatinib), an inhibitor of ErbB2 and ErbB1 tyrosine kinases by chronically exposing lapatinib-sensitive ErbB2-overexpressing breast cancer cells to lapatinib, simulating the clinic where lapatinib is administered on a daily chronic basis. Analysis of baseline gene expression in acquired lapatinib-resistant and parental cells indicates estrogen receptor (ER) signaling involvement in the development of resistance. Using gene interference, we confirm that acquired resistance to lapatinib is mediated by a switch in cell survival dependence and regulation of a key antiapoptotic mediator from ErbB2 alone to codependence upon ER and ErbB2 rather than loss of ErbB2 expression or insensitivity of ErbB2 signaling to lapatinib. Increased ER signaling in response to lapatinib is enhanced by the activation of factors facilitating the transcriptional activity of ER, notably FOXO3a and caveolin-1. Importantly, we confirm that lapatinib induces ER signaling in tumor biopsies from patients with ErbB2-overexpressing breast cancers receiving lapatinib therapy. These findings provided the rationale for preventing the development of acquired resistance by simultaneously inhibiting both ER and ErbB2 signaling pathways. Establishing clinically relevant models of acquired resistance to ErbB2 kinase inhibitors will enhance therapeutic strategies to improve clinical outcomes for patients with ErbB2-overexpressing breast cancers.

Indexed as

Breast NeoplasmsDrug Resistance, NeoplasmAntineoplastic AgentsCell Line, TumorCell SurvivalErb-b2 Receptor Tyrosine KinasesEstrogen Receptor ModulatorsFemaleForkhead Box Protein O3Forkhead Transcription FactorsHumansLapatinibProtein Kinase InhibitorsQuinazolinesReceptors, EstrogenRNA, Small InterferingAntineoplastic AgentsErb-b2 Receptor Tyrosine KinasesEstrogen Receptor ModulatorsForkhead Box Protein O3Forkhead Transcription FactorsFOXO3 protein, humanLapatinibProtein Kinase InhibitorsQuinazolinesReceptors, EstrogenRNA, Small Interfering

Identifiers

PMID16682622
PMCPMC1472524
OpenAlexW2086224272

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.