Evidence map›Paper›PMID 22431522›Full record

ArticleMolecular and cellular biology2012

Tumor suppressor PDCD4 represses internal ribosome entry site-mediated translation of antiapoptotic proteins and is regulated by S6 kinase 2.

Urszula Liwak, Nehal Thakor, Lindsay E Jordan, Rajat Roy, Stephen M Lewis, Olivier E Pardo, Michael Seckl, Martin Holcik

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

67 citing papers in PubMed, 101 citations in OpenAlex.

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  13. The Impact of Pdcd4, a Translation Inhibitor, on Drug Resistance.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
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7 more citing papers are in PubMed but not listed here.

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

8 authors at 2 institutions in 2 countries.

Urszula LiwakApoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada.
Nehal Thakor
Lindsay E Jordan
Rajat Roy
Stephen M Lewis
Olivier E Pardo
Michael Seckl
Martin Holcik
Children's Hospital of Eastern Ontario · CAImperial College London · GB

Funding

Canadian Institutes of Health Research MOP 89737
6 · The paper itself

Abstract

Apoptosis can be regulated by extracellular signals that are communicated by peptides such as fibroblast growth factor 2 (FGF-2) that have important roles in tumor cell proliferation. The prosurvival effects of FGF-2 are transduced by the activation of the ribosomal protein S6 kinase 2 (S6K2), which increases the expression of the antiapoptotic proteins X chromosome-linked Inhibitor of Apoptosis (XIAP) and Bcl-x(L). We now show that the FGF-2-S6K2 prosurvival signaling is mediated by the tumor suppressor programmed cell death 4 (PDCD4). We demonstrate that PDCD4 specifically binds to the internal ribosome entry site (IRES) elements of both the XIAP and Bcl-x(L) messenger RNAs and represses their translation by inhibiting the formation of the 48S translation initiation complex. Phosphorylation of PDCD4 by activated S6K2 leads to the degradation of PDCD4 and thus the subsequent derepression of XIAP and Bcl-x(L) translation. Our results identify PDCD4 as a specific repressor of the IRES-dependent translation of cellular mRNAs (such as XIAP and Bcl-x(L)) that mediate FGF-2-S6K2 prosurvival signaling and provide further insight into the role of PDCD4 in tumor suppression.

Indexed as

ApoptosisApoptosis Regulatory Proteinsbcl-X ProteinBinding SitesCell Line, TumorCell SurvivalFibroblast Growth Factor 2HumansProtein BindingProtein BiosynthesisRibosomal Protein S6 KinasesRibosomesRNA-Binding ProteinsSignal TransductionTumor Suppressor ProteinsX-Linked Inhibitor of Apoptosis ProteinApoptosis Regulatory Proteinsbcl-X ProteinFibroblast Growth Factor 2PDCD4 protein, humanRibosomal Protein S6 KinasesRNA-Binding ProteinsTumor Suppressor ProteinsXIAP protein, humanX-Linked Inhibitor of Apoptosis Protein

Identifiers

PMID22431522
PMCPMC3347423
OpenAlexW2155917508

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.