Evidence map›Paper›PMID 12897159›Full record

ArticleMolecular and cellular biology2003

Polysialic acid directs tumor cell growth by controlling heterophilic neural cell adhesion molecule interactions.

Ralph Seidenfaden, Andrea Krauter, Frank Schertzinger, Rita Gerardy-Schahn, Herbert Hildebrandt

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
4.4field-weighted citation impact, top 6% 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

58 citing papers in PubMed, 190 citations in OpenAlex.

  1. Article
  2. Glycosylation in Cancer.Handbook of experimental pharmacology · 2025
    Review
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  7. 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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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

5 authors at 2 institutions in 1 country.

Ralph SeidenfadenInstitut für Zoologie (220), Universität Hohenheim, 70593 Stuttgart, Germany.
Andrea Krauter
Frank Schertzinger
Rita Gerardy-Schahn
Herbert Hildebrandt
University of Hohenheim · DEMedizinische Hochschule Hannover · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Polysialic acid (PSA), a carbohydrate polymer attached to the neural cell adhesion molecule (NCAM), promotes neural plasticity and tumor malignancy, but its mode of action is controversial. Here we establish that PSA controls tumor cell growth and differentiation by interfering with NCAM signaling at cell-cell contacts. Interactions between cells with different PSA and NCAM expression profiles were initiated by enzymatic removal of PSA and by ectopic expression of NCAM or PSA-NCAM. Removal of PSA from the cell surface led to reduced proliferation and activated extracellular signal-regulated kinase (ERK), inducing enhanced survival and neuronal differentiation of neuroblastoma cells. Blocking with an NCAM-specific peptide prevented these effects. Combinatorial transinteraction studies with cells and membranes with different PSA and NCAM phenotypes revealed that heterophilic NCAM binding mimics the cellular responses to PSA removal. In conclusion, our data demonstrate that PSA masks heterophilic NCAM signals, having a direct impact on tumor cell growth. This provides a mechanism for how PSA may promote the genesis and progression of highly aggressive PSA-NCAM-positive tumors.

Indexed as

ApoptosisCell AdhesionCell DifferentiationCell DivisionCell MembraneCell SurvivalEnzyme ActivationEnzyme InhibitorsEnzyme-Linked Immunosorbent AssayGenetic VectorsHumansImmunoblottingImmunohistochemistryMAP Kinase Signaling SystemMicroscopy, FluorescenceMicroscopy, ImmunoelectronEnzyme InhibitorsMitogen-Activated Protein KinasesNeural Cell Adhesion MoleculesPolymerspolysialic acidSialic Acids

Identifiers

PMID12897159
PMCPMC166353
OpenAlexW2109103923

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.