Evidence map›Paper›PMID 20229272›Full record

ArticleJournal of cancer research and clinical oncology2010

Molecular evolution of a neurofibroma to malignant peripheral nerve sheath tumor (MPNST) in an NF1 patient: correlation between histopathological, clinical and molecular findings.

Gill Spurlock, Samantha J L Knight, Nick Thomas, Tim-Rasmus Kiehl, Abhijit Guha, Meena Upadhyaya

Open access · greenAbstract readCase Reports
In one paragraph

Article in Journal of cancer research and clinical oncology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
3.8field-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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
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  7. Article
  8. Article
  9. Observational
  10. Article
  11. Treatment of malignant peripheral nerve sheath tumors in pediatric NF1 disease.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2020
    Review
  12. Review
  13. Genomic Status ofCancer research · 2018
    Article
  14. Article
  15. Article
  16. Article
  17. Immortalization of human normal and NF1 neurofibroma Schwann cells.Laboratory investigation; a journal of technical methods and pathology · 2016
    Article
  18. Article
  19. Article
  20. Article
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 4 institutions in 2 countries.

Gill SpurlockInstitute of Medical Genetics, Cardiff University, Heath Park, Cardiff, CF14 4XN Wales, UK.
Samantha J L Knight
Nick Thomas
Tim-Rasmus Kiehl
Abhijit Guha
Meena Upadhyaya
Cardiff University · GBCentre for Human Genetics · GBUniversity Health Network · CAUniversity of Toronto · CA

Funding

Cancer Research UKWellcome TrustWellcome Trust 075491/Z/04
6 · The paper itself

Abstract

objectiveNeurofibromatosis type 1 (NF1) patients have a 13% risk of developing a malignant peripheral nerve sheath tumor (MPNST). Many MPNSTs are histopathologically complex, with regions exhibiting features of the original benign plexiform neurofibroma (PNF), of an atypical PNF, or of MPNST showing varying degrees of de-differentiation. This study analyzed the genetic alterations associated with this pathological heterogeneity in order to identify the genetic processes involved in transformation from a benign to an aggressive malignant tumor.

methodsA histological and molecular analysis of a single MPNST tumor that was subdivided into three histopathologically distinct regions, a benign PNF (region 1), an atypical PNF (region 2), and a high-grade MPNST (region 3), was carried out. Tumor DNA from each region was analyzed in conjunction with the patient's lymphocyte DNA. Somatic mutation analyses included loss-of heterozygosity (LOH), MLPA analysis, NF1 gene sequencing, and a microarray comparative genomic hybridisation (array CGH) analysis.

resultsThe patient had a germline NF1 splice-site mutation. The NF1-associated LOH analysis found that LOH increased in the three tumor areas, with 9, 42, and 97% LOH evident in regions 1, 2, and 3, respectively. Additional genetic changes, including losses of TP53, RB1, CDKN2A, and of several oncogenes and cell-cycle genes, were found only in the malignant MPNST (region 3). Array CGH also identified genomic gains and losses in DNA from region 3. DISCUSSION: This is the first study that correlates the histological and molecular changes associated with MPNST development, confirming the significant cellular and genetic heterogeneity that poses both diagnostic and therapeutic challenges.

Indexed as

AdultBase SequenceComparative Genomic HybridizationDisease ProgressionDNA Mutational AnalysisGerm-Line MutationHumansLoss of HeterozygosityMaleMolecular Sequence DataNerve Sheath NeoplasmsNeurofibromaNeurofibromatosis 1Neurofibromin 1Neurofibromin 1

Identifiers

PMID20229272
PMCPMC11827916
OpenAlexW2022670831

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.