Evidence map›Paper›PMID 20219118›Full record

ArticleBMC cancer2010

Polysialic acid neural cell adhesion molecule (PSA-NCAM) is an adverse prognosis factor in glioblastoma, and regulates olig2 expression in glioma cell lines.

Marie-Claude Amoureux, Béma Coulibaly, Olivier Chinot, Anderson Loundou, Philippe Metellus, Geneviève Rougon, Dominique Figarella-Branger

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 12% 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, 1 synthesis or guideline pooled it, 101 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Sialylation in the nervous system: Functions and mechanisms.The Journal of biological chemistry · 2026
    Review
  4. Article
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  10. Proinflammatory Macrophage Activation by the Polysialic Acid-Siglec-16 Axis Is Linked to Increased Survival of Patients with Glioblastoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023
    Article
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  16. The dynamic brain N-glycome.Glycoconjugate journal · 2022
    Review
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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

7 authors at 4 institutions in 1 country.

Marie-Claude AmoureuxUniversité de la Méditerranée CNRS UMR6216, Institut de Biologie du Développement de Marseille Luminy, Marseille, France. amoureux@ibdml.univ-mrs.fr.
Béma Coulibaly
Olivier Chinot
Anderson Loundou
Philippe Metellus
Geneviève Rougon
Dominique Figarella-Branger
Hôpital de la Timone · FRCentre National de la Recherche Scientifique · FRInstitut de Biologie du Développement Marseille · FRInstitut de Neurobiologie de la Méditerranée · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlioblastoma multiforme (GBM) is the most aggressive and frequent brain tumor, albeit without cure. Although patient survival is limited to one year on average, significant variability in outcome is observed. The assessment of biomarkers is needed to gain better knowledge of this type of tumor, help prognosis, design and evaluate therapies. The neurodevelopmental polysialic acid neural cell adhesion molecule (PSA-NCAM) protein is overexpressed in various cancers. Here, we studied its expression in GBM and evaluated its prognosis value for overall survival (OS) and disease free survival (DFS).

methodsWe set up a specific and sensitive enzyme linked immunosorbent assay (ELISA) test for PSA-NCAM quantification, which correlated well with PSA-NCAM semi quantitative analysis by immunohistochemistry, and thus provides an accurate quantitative measurement of PSA-NCAM content for the 56 GBM biopsies analyzed. For statistics, the Spearman correlation coefficient was used to evaluate the consistency between the immunohistochemistry and ELISA data. Patients' survival was estimated by using the Kaplan-Meier method, and curves were compared using the log-rank test. On multivariate analysis, the effect of potential risk factors on the DFS and OS were evaluated using the cox regression proportional hazard models. The threshold for statistical significance was p = 0.05.

resultsWe showed that PSA-NCAM was expressed by approximately two thirds of the GBM at variable levels. On univariate analysis, PSA-NCAM content was an adverse prognosis factor for both OS (p = 0.04) and DFS (p = 0.0017). On multivariate analysis, PSA-NCAM expression was an independent negative predictor of OS (p = 0.046) and DFS (p = 0.007). Furthermore, in glioma cell lines, PSA-NCAM level expression was correlated to the one of olig2, a transcription factor required for gliomagenesis.

conclusionPSA-NCAM represents a valuable biomarker for the prognosis of GBM patients.

Indexed as

AdolescentAdultAnimalsBasic Helix-Loop-Helix ProteinsBiopsyBrain NeoplasmsCell Growth ProcessesCell Line, TumorDisease-Free SurvivalEnzyme-Linked Immunosorbent AssayFemaleGlioblastomaHumansImmunohistochemistryMaleMiddle AgedBasic Helix-Loop-Helix ProteinsNerve Tissue ProteinsNeural Cell Adhesion Molecule L1OLIG2 protein, humanOligodendrocyte Transcription Factor 2polysialyl neural cell adhesion moleculeSialic Acids

Identifiers

PMID20219118
PMCPMC2854115
OpenAlexW2020199326

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.