Evidence map›Paper›PMID 17333111›Full record

ArticleDiabetologia2007

Global profiling of genes modified by endoplasmic reticulum stress in pancreatic beta cells reveals the early degradation of insulin mRNAs.

P Pirot, N Naamane, F Libert, N E Magnusson, T F Ørntoft, A K Cardozo, D L Eizirik

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In one paragraph

Article in Diabetologia, 2007. 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
10.2field-weighted citation impact, top 1% 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, 129 citations in OpenAlex.

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  6. β-Cell Dedifferentiation in HOMA-βlow and HOMA-βhigh Subjects.The Journal of clinical endocrinology and metabolism · 2025
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  16. Abnormalities in proinsulin processing in islets from individuals with longstanding T1D.Translational research : the journal of laboratory and clinical medicine · 2019
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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

7 authors at 2 institutions in 2 countries.

P PirotLaboratory of Experimental Medicine, Université Libre de Bruxelles (ULB), Route de Lennik, 808-CP-618, 1070 Brussels, Belgium.
N Naamane
F Libert
N E Magnusson
T F Ørntoft
A K Cardozo
D L Eizirik
Université Libre de Bruxelles · BEAarhus University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisPancreatic beta cells respond to endoplasmic reticulum (ER) stress by activating the unfolded protein response. If the stress is prolonged, or the adaptive response fails, apoptosis is triggered. We used a 'homemade' microarray specifically designed for the study of beta cell apoptosis (the APOCHIP) to uncover mechanisms regulating beta cell responses to ER stress. MATERIALS AND

methodsA time course viability and microarray analysis was performed in insulin-producing INS-1E cells exposed to the reversible ER stress inducer cyclopiazonic acid (CPA). Modification of selected genes was confirmed by real-time RT-PCR, and the observed inhibition of expression of the insulin-1 (Ins1) and insulin-2 (Ins2) genes was further characterised in primary beta cells exposed to a diverse range of agents that induce ER stress.

resultsCPA-induced ER stress modified the expression of 183 genes at one or more of the time points studied. The expression of most of these genes returned to control levels after a 3 h recovery period following CPA removal, with all cells surviving. Two groups of genes were particularly affected by CPA, namely, those related to cellular responses to ER stress, which were mostly upregulated, and those related to differentiated beta cell functions, which were downregulated. Levels of Ins1 and Ins2 mRNAs were severely decreased in response to CPA treatment as a result of degradation, and there was a concomitant increase in the level of IRE1 activation. CONCLUSIONS/

interpretationIn this study we provide the first global analysis of beta cell molecular responses to a severe ER stress, and identify the early degradation of mRNA transcripts of the insulin genes as an important component of this response.

Indexed as

Gene Expression ProfilingCell LineCells, CulturedCell SurvivalEndoplasmic ReticulumGene Expression RegulationHumansIndolesInsulinInsulin-Secreting CellsKineticsOligonucleotide Array Sequence AnalysisPolymerase Chain ReactionRNA, MessengerStress, Mechanicalcyclopiazonic acidIndolesInsulinRNA, Messenger

Identifiers

PMID17333111
OpenAlexW2170275764

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.