Evidence map›Paper›PMID 20617367›Full record

ArticleJournal of neuro-oncology2011

Gain of chromosome 7 by chromogenic in situ hybridization (CISH) in chordomas is correlated to c-MET expression.

Beatriz A Walter, Maria Begnami, Vladimir A Valera, Mariarita Santi, Elisabeth J Rushing, Martha Quezado

Abstract read
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In one paragraph

Article in Journal of neuro-oncology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

10 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Chordoma: an update on the pathophysiology and molecular mechanisms.Current reviews in musculoskeletal medicine · 2015
    Article
  5. Article
  6. Article
  7. Article
  8. MET gain in diffuse astrocytomas is associated with poorer outcome.Brain pathology (Zurich, Switzerland) · 2013
    Article
  9. Review
  10. 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

6 authors at 6 institutions in 2 countries.

Beatriz A WalterLaboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 10-Magnuson CC, Room 2A10, 10 Center Drive, Bethesda, MD 20892, USA.
Maria Begnami
Vladimir A Valera
Mariarita Santi
Elisabeth J Rushing
Martha Quezado
AC Camargo Hospital · BRArmed Forces Institute of Pathology · USCenter for Cancer Research · USChildren's Hospital of Philadelphia · USNational Cancer Institute · USNational Institutes of Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chordomas are low to intermediate grade malignancies that arise from remnants of embryonic notochord. They often recur after surgery and are highly resistant to conventional adjuvant therapies. Recently, the development of effective targeted molecular therapy has been investigated in chordomas that show receptors for tyrosine kinase (RTKs) activation. Expression of specific RTKs such as Epidermal Growth Factor Receptor (EGFR) and Mesenchymal-epithelial transition factor (c-MET) in chordomas may offer valuable therapeutic options. We investigated changes in copy number of chromosome 7 and correlated it with EGFR gene status and EGFR and c-MET protein expression in 22 chordoma samples. Chromosome 7 copy number was evaluated by chromogenic in situ hybridization (CISH) and protein expression of EGFR and c-MET by immunohistochemistry. Tumors mostly showed conventional histopathologic features and were found mainly in sacral (41%) and cranial sites (54.5%). Aneusomy of chromosome 7 was seen in 73% of the samples, 62% of primary tumors and in all recurrent chordomas. EGFR and c-MET were both expressed, but only c-MET protein expression was significantly correlated with chromosome 7 aneusomy (P ≤ 0.001). c-MET overexpression may represent an early chromosome 7 alteration that could play an important role during chordoma pathogenesis. c-MET overexpression shows promise as a molecular marker of response to targeted molecular therapy in the treatment of chordomas.

Indexed as

Bone NeoplasmsChordomaChromosomes, Human, Pair 7AdolescentAdultAgedDNA Copy Number VariationsErbB ReceptorsFemaleHumansIn Situ HybridizationMaleMiddle AgedProto-Oncogene Proteins c-metStatistics as TopicYoung AdultEGFR protein, humanErbB ReceptorsProto-Oncogene Proteins c-met

Identifiers

PMID20617367
OpenAlexW2073995588

What OpenQuestion holds

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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.