Evidence map›Paper›PMID 21976412›Full record

ArticleMolecular carcinogenesis2012

PTBP1-dependent regulation of USP5 alternative RNA splicing plays a role in glioblastoma tumorigenesis.

Daisy I Izaguirre, Wen Zhu, Tao Hai, Hannah C Cheung, Ralf Krahe, Gilbert J Cote

Open access · greenAbstract read
In one paragraph

Article in Molecular carcinogenesis, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 1 pooled it
2.3field-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

53 citing papers in PubMed, 1 synthesis or guideline pooled it, 86 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Research progress of DUB enzyme in breast cancer.Clinical and experimental medicine · 2025
    Review
  4. PTBP1 and Cancer: From RNA Regulation to Therapeutic Potential.Journal of cellular and molecular medicine · 2025
    Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. PTBP1 is a Novel Poor Prognostic Factor for Glioma.BioMed research international · 2022
    Article
  18. Article
  19. Article
  20. 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

6 authors at 1 institution in 1 country.

Daisy I IzaguirreDepartment of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA.
Wen Zhu
Tao Hai
Hannah C Cheung
Ralf Krahe
Gilbert J Cote
The University of Texas MD Anderson Cancer Center · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
PRODUCTION OF ALTERNATIVE FGF RECEPTOR FORMS IN TUMORSR01CA067946 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI COTE, GILBERT J. · 1995 to 2010
$2.7M
NCI NIH HHS CA016672NCI NIH HHS NCI CA67946NCI NIH HHS P30 CA016672NCI NIH HHS R01 CA067946
6 · The paper itself

Abstract

Aberrant RNA splicing is thought to play a key role in tumorigenesis. The assessment of its specific contributions is limited by the complexity of information derived from genome-wide array-based approaches. We describe how performing splicing factor-specific comparisons using both tumor and cell line data sets may more readily identify physiologically relevant tumor-specific splicing events. Affymetrix exon array data derived from glioblastoma (GBM) tumor samples with defined polypyrimidine tract-binding protein 1 (PTBP1) levels were compared with data from U251 GBM cells with and without PTBP1 knockdown. This comparison yielded overlapping gene sets that comprised only a minor fraction of each data set. The identification of a novel GBM-specific splicing event involving the USP5 gene led us to further examine its role in tumorigenesis. In GBM, USP5 generates a shorter isoform 2 through recognition of a 5' splice site within exon 15. Production of the USP5 isoform 2 was strongly correlated with PTBP1 expression in GBM tumor samples and cell lines. Splicing regulation was consistent with the presence of an intronic PTBP1 binding site and could be modulated through antisense targeting of the isoform 2 splice site to force expression of isoform 1 in GBM cells. The forced expression of USP5 isoform 1 in two GBM cell lines inhibited cell growth and migration, implying an important role for USP5 splicing in gliomagenesis. These results support a role for aberrant RNA splicing in tumorigenesis and suggest that changes in relatively few genes may be sufficient to drive the process.

Indexed as

Alternative SplicingGene Expression Regulation, NeoplasticBase SequenceBinding SitesCell Line, TumorCell MovementCell ProliferationEndopeptidasesExonsGene Knockdown TechniquesGlioblastomaHeterogeneous-Nuclear RibonucleoproteinsHumansMolecular Sequence DataPolypyrimidine Tract-Binding ProteinProtein IsoformsEndopeptidasesHeterogeneous-Nuclear RibonucleoproteinsPolypyrimidine Tract-Binding ProteinProtein IsoformsPTBP1 protein, humanubiquitin isopeptidase

Identifiers

PMID21976412
PMCPMC3319169
OpenAlexW2109200119

What OpenQuestion holds

Textmetadata
LicenceTDM
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.