Evidence map›Paper›PMID 21063673›Full record

ArticleDiabetologia2011

Translationally controlled tumour protein (TCTP) is a novel glucose-regulated protein that is important for survival of pancreatic beta cells.

F Diraison, K Hayward, K L Sanders, F Brozzi, S Lajus, J Hancock, J E Francis, E Ainscow, U A Bommer, E Molnar and 2 more

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Diabetologia, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
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

24 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. The mitochondrial enzyme pyruvate carboxylase restricts pancreatic β-cell senescence by blocking p53 activation.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. High Plasma Levels of Fortilin in Patients with Coronary Artery Disease.International journal of molecular sciences · 2022
    Article
  7. Review
  8. Article
  9. An in vivo RNAi mini-screen in Drosophila cancer models reveals novel potential Wnt targets in liver cancer.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2019
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. The pancreatic β-cell transcriptome and integrated-omics.Current opinion in endocrinology, diabetes, and obesity · 2014
    Review
  17. Article
  18. Article
  19. Targeting TCTP as a new therapeutic strategy in castration-resistant prostate cancer.Molecular therapy : the journal of the American Society of Gene Therapy · 2012
    Article
  20. Article
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

12 authors at 6 institutions in 2 countries.

F DiraisonCentre for Research in Biomedicine, Faculty of Health and Life Sciences, University of the West of England, Bristol BS16 1QY, UK.
K Hayward
K L Sanders
F Brozzi
S Lajus
J Hancock
J E Francis
E Ainscow
U A Bommer
E Molnar
N D Avent
A Varadi
University of the West of England · GBAstraZeneca (United Kingdom) · GBLoughborough University · GBUniversity of Bristol · GBUniversity of Dundee · GBUniversity of Wollongong · AU

Funding

Biotechnology and Biological Sciences Research Council BB/E021050/1Medical Research CouncilWellcome Trust
6 · The paper itself

Abstract

aims/hypothesisThis study used proteomics and biochemical approaches to identify novel glucose-regulated proteins and to unveil their role in pancreatic beta cell function. Translationally controlled tumour protein (TCTP) was identified to be one such protein, and further investigations into its function and regulation were carried out.

methodsGlobal protein profiling of beta cell homogenates following glucose stimulation was performed using two-dimensional gel electrophoresis. Proteins were identified by mass spectroscopy analysis. Immunoblotting was used to investigate alterations in TCTP protein levels in response to glucose stimulation or cell stress induced by palmitate. To investigate the biological function of TCTP, immunolocalisation, gene knockdown and overexpression of Tctp (also known as Tpt1) were performed. Apoptosis was measured in Tctp knockdown or Tctp-overexpressing cells. Glucose-stimulated insulin secretion was carried out in Tctp knockdown cells.

resultsTCTP was identified as a novel glucose-regulated protein, the level of which is increased at stimulatory glucose concentration. Glucose also induced TCTP dephosphorylation and its partial translocation to the mitochondria and the nucleus. TCTP protein levels were downregulated in response to cell stress induced by palmitate or thapsigargin treatments. Gene knockdown by small interfering RNA led to increased apoptosis, whereas overproduction of TCTP prevented palmitate-induced cell death. CONCLUSIONS/

interpretationRegulation of TCTP protein levels by glucose is likely to be an important cyto-protective mechanism for pancreatic beta cells against damage caused by hyperglycaemia. In contrast, high concentration of palmitate causes cell stress, reduction in TCTP levels and consequently reduced cell viability. Our results imply that TCTP levels influence the sensitivity of beta cells to apoptosis.

Indexed as

Biomarkers, TumorHSP70 Heat-Shock ProteinsInsulin-Secreting CellsMembrane ProteinsAnimalsApoptosisCell LineCell SurvivalElectrophoresis, Gel, Two-DimensionalHumansIn Situ Nick-End LabelingIsoelectric FocusingMicePalmitic AcidsReverse Transcriptase Polymerase Chain ReactionRNA, Small InterferingBiomarkers, Tumorglucose-regulated proteinsHSP70 Heat-Shock ProteinsMembrane ProteinsPalmitic AcidsRNA, Small InterferingTPT1 protein, humanTpt1 protein, mouseTumor Protein, Translationally-Controlled 1

Identifiers

PMID21063673
OpenAlexW2018913867

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.