Evidence map›Paper›PMID 20511180›Full record

ArticleNeuro-oncology2010

ErbB/HER receptor activation and preclinical efficacy of lapatinib in vestibular schwannoma.

Sylwia Ammoun, Clare H Cunliffe, Jeffrey C Allen, Luis Chiriboga, Filippo G Giancotti, David Zagzag, C Oliver Hanemann, Matthias A Karajannis

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 2 pooled it
5.5field-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

56 citing papers in PubMed, 2 syntheses or guidelines pooled it, 95 citations in OpenAlex.

  1. Guidelines in the management of CNS tumors.Journal of neuro-oncology · 2021
    Guideline
  2. Pooled it
  3. Trial
  4. Trial
  5. Review
  6. Review
  7. Review
  8. MEK Inhibition in Glioblastoma: Current Perspectives and Future Directions.International journal of molecular sciences · 2025
    Review
  9. Article
  10. The molecular biology of NF2/Merlin on tumorigenesis and development.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Review
  11. Article
  12. Updates on Tumor Biology in Vestibular Schwannoma.Otolaryngologic clinics of North America · 2023
    Review
  13. Review
  14. Article
  15. [Research progress on non-surgical treatment of vestibular schwannomas].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2022
    Review
  16. A Critical Overview of Targeted Therapies for Vestibular Schwannoma.International journal of molecular sciences · 2022
    Review
  17. Review
  18. Article
  19. A Review of Drug Therapy in Vestibular Schwannoma.Drug design, development and therapy · 2021
    Review
  20. 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

8 authors at 4 institutions in 2 countries.

Sylwia AmmounDivision of Pediatric Hematology/Oncology and NYU Cancer Institute, Hassenfeld Children's Center for Cancer and Blood Disorders, 160 East 32nd Street, 2nd Floor, New York, NY 10016, USA.
Clare H Cunliffe
Jeffrey C Allen
Luis Chiriboga
Filippo G Giancotti
David Zagzag
C Oliver Hanemann
Matthias A Karajannis
New York University · USUniversity of Plymouth · GBMemorial Sloan Kettering Cancer Center · USPeninsula College of Medicine and Dentistry · GB

Funding

ZOPOLRESTAT IN SUBJECTS W/ PERIPHERAL SYMMETRICAL DIABETIC POLYNEUROPATHYM01RR000096 · NCRR · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI BORKOWSKY, WILLIAM · 1985 to 2008
$34.8M
NCRR NIH HHS M01 RR000096NCRR NIH HHS M01RR00096
6 · The paper itself

Abstract

Vestibular schwannomas (VS) arising sporadically or in patients with neurofibromatosis type 2 (NF2) consistently lack expression of Merlin, a tumor suppressor. Conventional treatment options include surgery and radiotherapy but there is no validated medical option. Recent evidence suggests that Merlin deficiency may result in abnormal activation of receptor tyrosine kinases (RTKs) and downstream signaling, promoting tumor growth. Although small-molecule RTK inhibitors are widely available for clinical use, no such therapy has been validated in patients with VS. To screen for RTK activation, surgical VS specimens from patients with and without NF2 were analyzed by phospho-RTK profiling arrays. Downstream signaling pathway activation was analyzed by phospho-MAPK arrays. Activated RTKs and downstream kinases were validated immunohistochemically in corresponding formalin-fixed, paraffin-embedded tissues. Phospho-RTK arrays and immunohistochemistry showed consistent overexpression and activation of EGFR family receptors and evidence of ERK1/2 downstream signaling was observed in all samples analyzed (n = 11). Based on the findings, the small-molecule EGFR/ErbB2 kinase inhibitor lapatinib was selected for evaluation of target inhibition and treatment efficacy in our in vitro human schwannoma model. EGFR/ErbB2 targeted therapy with lapatinib inhibited ErbB2 phosphorylation and survivin upregulation, as well as downstream ERK1/2 and AKT activation, resulting in decreased proliferation. We conclude that EGFR family receptor activation is a consistent feature of both sporadic and NF2-related VS. Molecular targeted therapy with lapatinib downregulates survivin and has antiproliferative activity in a preclinical VS model. Based on these findings, a clinical trial with lapatinib for the treatment of VS is currently underway.

Indexed as

Antineoplastic AgentsBlotting, WesternCell Line, TumorCell SurvivalErb-b2 Receptor Tyrosine KinasesErbB ReceptorsHumansImmunohistochemistryLapatinibMitogen-Activated Protein KinasesNeuroma, AcousticProtein Array AnalysisQuinazolinesSignal TransductionAntineoplastic AgentsERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesErbB ReceptorsLapatinibMitogen-Activated Protein KinasesQuinazolines

Identifiers

PMID20511180
PMCPMC2940674
OpenAlexW2172251568

What OpenQuestion holds

Textmetadata
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.