Evidence map›Paper›PMID 21541352›Full record

ArticlePloS one2011

Full-length L1CAM and not its Δ2Δ27 splice variant promotes metastasis through induction of gelatinase expression.

Stephanie Hauser, Laura Bickel, Dirk Weinspach, Michael Gerg, Michael K Schäfer, Marco Pfeifer, John Hazin, Florian Schelter, Ulrich H Weidle, Juliane Ramser and 6 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 22% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. 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

16 authors at 4 institutions in 1 country.

Stephanie HauserInstitut für Experimentelle Onkologie und Therapieforschung Klinkum rechts der Isar der Technischen Universität München, München, Germany.
Laura Bickel
Dirk Weinspach
Michael Gerg
Michael K Schäfer
Marco Pfeifer
John Hazin
Florian Schelter
Ulrich H Weidle
Juliane Ramser
Juliane Volkmann
Alfons Meindl
Manfred Schmitt
Florian Schrötzlmair
Peter Altevogt
Achim Krüger
Klinikum rechts der Isar · DEDKFZ-ZMBH Alliance · DERoche Pharma AG (Germany) · DEUniversity of Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tumour-specific splicing is known to contribute to cancer progression. In the case of the L1 cell adhesion molecule (L1CAM), which is expressed in many human tumours and often linked to bad prognosis, alternative splicing results in a full-length form (FL-L1CAM) and a splice variant lacking exons 2 and 27 (SV-L1CAM). It has not been elucidated so far whether SV-L1CAM, classically considered as tumour-associated, or whether FL-L1CAM is the metastasis-promoting isoform. Here, we show that both variants were expressed in human ovarian carcinoma and that exposure of tumour cells to pro-metastatic factors led to an exclusive increase of FL-L1CAM expression. Selective overexpression of one isoform in different tumour cells revealed that only FL-L1CAM promoted experimental lung and/or liver metastasis in mice. In addition, metastasis formation upon up-regulation of FL-L1CAM correlated with increased invasive potential and elevated Matrix metalloproteinase (MMP)-2 and -9 expression and activity in vitro as well as enhanced gelatinolytic activity in vivo. In conclusion, we identified FL-L1CAM as the metastasis-promoting isoform, thereby exemplifying that high expression of a so-called tumour-associated variant, here SV-L1CAM, is not per se equivalent to a decisive role of this isoform in tumour progression.

Indexed as

Alternative SplicingAnimalsCell Line, TumorColorectal NeoplasmsDisease ProgressionEndosomesEnzyme InductionFemaleFibrosarcomaHumansLymphoma, T-CellMatrix Metalloproteinase 2Matrix Metalloproteinase 9MiceNeoplasm MetastasisNeoplasmsMatrix Metalloproteinase 2Matrix Metalloproteinase 9Neural Cell Adhesion Molecule L1

Identifiers

PMID21541352
PMCPMC3081839
OpenAlexW2001236588

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.