Evidence map›Paper›PMID 19921098›Full record

ArticleJournal of neuro-oncology2010

Imatinib mesylate (Glivec) inhibits Schwann cell viability and reduces the size of human plexiform neurofibroma in a xenograft model.

Maria Demestre, Jan Herzberg, Nikola Holtkamp, Christian Hagel, David Reuss, Reinhard E Friedrich, Lan Kluwe, Andreas Von Deimling, Victor-F Mautner, Andreas Kurtz

Abstract read
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In one paragraph

Article in Journal of neuro-oncology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
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

13 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Emerging therapeutic targets for neurofibromatosis type 1.Expert opinion on therapeutic targets · 2018
    Review
  5. Article
  6. Treatment of neurofibromatosis type 1.Current treatment options in neurology · 2015
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. 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

10 authors.

Maria DemestreDepartment of Maxillofacial Surgery, University Medical Centre Hamburg Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
Jan Herzberg
Nikola Holtkamp
Christian Hagel
David Reuss
Reinhard E Friedrich
Lan Kluwe
Andreas Von Deimling
Victor-F Mautner
Andreas Kurtz

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plexiform neurofibromas (PNF), one of the major features of neurofibromatosis type 1 (NF1), are characterized by complex cellular composition and mostly slow but variable growth patterns. In this study, we examined the effect of imatinib mesylate, a receptor tyrosine kinase inhibitor, on PNF-derived Schwann cells and PNF tumour growth in vitro and in vivo. In vitro, PNF-derived primary Schwann cells express platelet-derived growth factors receptors (PDGFR) alpha and beta, both targets of imatinib, and cell viability was reduced by imatinib mesylate, with 50% inhibition concentration (IC(50)) of 10 microM. For in vivo studies, PNF tumour fragments xenografted onto the sciatic nerve of athymic nude mice were first characterized. The tumours persisted for at least 63 days and maintained typical characteristics of PNFs such as complex cellular composition, low proliferation rate and angiogenesis. A transient enlargement of the graft size was due to inflammation by host cells. Treatment with imatinib mesylate at a daily dose of 75 mg/kg for 4 weeks reduced the graft size by an average of 80% (n = 8), significantly different from the original sizes within the group and from sizes of the grafts in 11 untreated mice in the control group (P < 0.001). We demonstrated that grafting human PNF tumour fragments into nude mice provides an adequate in vivo model for drug testing. Our results provide in vivo and in vitro evidence for efficacy of imatinib mesylate for PNF.

Indexed as

Cell Line, TumorAdolescentAdultAnimalsBenzamidesBrain NeoplasmsCell SizeCell SurvivalDisease Models, AnimalDose-Response Relationship, DrugFemaleGene Expression Regulation, NeoplasticHumansImatinib MesylateKi-67 AntigenMaleBenzamidesImatinib MesylateKi-67 AntigenPiperazinesProtein Kinase InhibitorsPyrimidinesReceptor, Platelet-Derived Growth Factor alphaReceptor, Platelet-Derived Growth Factor betaS100 Proteins

Identifiers

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.