Evidence map›Paper›PMID 22706982›Full record

ArticlePediatric blood & cancer2012

Pediatric brainstem gangliogliomas show overexpression of neuropeptide prepronociceptin (PNOC) by microarray and immunohistochemistry.

Michael H Chan, B K Kleinschmidt-Demasters, Andrew M Donson, Diane K Birks, Nicholas K Foreman, Sarah Z Rush

Abstract read
In one paragraph

Article in Pediatric blood & cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

12 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Pediatric infratentorial ganglioglioma.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2015
    Review
  9. Article
  10. Ganglioglioma in brainstem : case report and a review of literatures.Journal of Korean Neurosurgical Society · 2014
    Article
  11. Article
  12. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Michael H ChanDepartment of Neuro-Oncology, Children's Hospital Colorado, Aurora, CO 80045, USA.
B K Kleinschmidt-Demasters
Andrew M Donson
Diane K Birks
Nicholas K Foreman
Sarah Z Rush
University of Colorado Denver · USBoston Children's Hospital · USUniversity of Colorado Anschutz Medical Campus · US

Funding

University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
NCI NIH HHS P30 CA046934
6 · The paper itself

Abstract

backgroundGangliogliomas (GGs) primary to brainstem are rare, with the overwhelming majority of GGs occurring in supratentorial, especially temporal lobe, locations. A less favorable prognosis exists for brainstem GGs, despite their usually identical WHO grade I status. Few large clinical series, and limited biological information, exists on these tumors, especially gene expression. PROCEDURE: Seven pediatric brainstem GGs, all with classic histological features, seen at our institution since 2000 were identified. Frozen section material was available for gene expression microarray profiling from five of seven brainstem GGs and compared with that from three non-brainstem pediatric GGs.

resultsSignificant upregulation of a number of genes was identified, most of which were involved in pathways of neural signaling, embryonic development, and pattern specification in pediatric brainstem GGs compared to non-brainstem. The single largest upregulated gene was a 256-fold increase in the expression of the neuropeptide prepronociceptin (PNOC); the protein product of this gene has been implicated in neuronal growth. Overexpression was validated by Western blot and by immunohistochemistry (IHC). Strong IHC expression of PNOC was seen in neoplastic neurons of 7/7 brainstem GGs, but was significantly weaker in non-brainstem GGs, and completely negative in normal pediatric autopsy brainstem controls.

conclusionsPNOC IHC was often superior to IHC for NeuN, synaptophysin, or neurofilament for highlighting neoplastic neurons.

Indexed as

Gene Expression ProfilingImmunohistochemistryAdolescentBrain Stem NeoplasmsChildChild, PreschoolFemaleGangliogliomaHumansMaleMicroarray AnalysisProtein PrecursorsReceptors, OpioidprepronociceptinProtein PrecursorsReceptors, Opioid

Identifiers

PMID22706982
PMCPMC4681521
OpenAlexW1988165313

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Registered trials

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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.