Evidence map›Paper›PMID 21853144›Full record

ArticlePloS one2011

An atypical unfolded protein response in heat shocked cells.

Lonneke Heldens, Sanne M M Hensen, Carla Onnekink, Siebe T van Genesen, Ron P Dirks, Nicolette H Lubsen

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 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.4field-weighted citation impact, top 21% 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

27 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Re-Evaluating Hot Mitochondria: Too Slow to Cool.Acta physiologica (Oxford, England) · 2026
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  7. TheInternational journal of molecular sciences · 2022
    Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Roles of heat shock factor 1 beyond the heat shock response.Cellular and molecular life sciences : CMLS · 2018
    Review
  16. Article
  17. Review
  18. Article
  19. 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

6 authors at 1 institution in 1 country.

Lonneke HeldensDepartment of Biomolecular Chemistry, Radboud University Nijmegen, Nijmegen, The Netherlands.
Sanne M M Hensen
Carla Onnekink
Siebe T van Genesen
Ron P Dirks
Nicolette H Lubsen
Radboud University Nijmegen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe heat shock response (HSR) and the unfolded protein response (UPR) are both activated by proteotoxic stress, although in different compartments, and share cellular resources. How these resources are allocated when both responses are active is not known. Insight in possible crosstalk will help understanding the consequences of failure of these systems in (age-related) disease.

resultsIn heat stressed HEK293 cells synthesis of the canonical UPR transcription factors XBP1s and ATF4 was detected as well as HSF1 independent activation of the promoters of the ER resident chaperones HSPA5 (BiP) and DNAJB9 (ERdj4). However, the heat stress activation of the DNAJB9 promoter, a XBP1s target, was not blocked in cells expressing a dominant negative IRE1α mutant, and thus did not require XBP1s. Furthermore, the DNA element required for heat stress activation of the DNAJB9 promoter is distinct from the ATF4 and ATF6 target elements; even though inhibition of eIF2α phosphorylation resulted in a decreased activation of the DNAJB9 promoter upon heat stress, suggesting a role for an eIF2α phosphorylation dependent product.

conclusionsThe initial step in the UPR, synthesis of transcription factors, is activated by heat stress but the second step, transcriptional transactivation by these factors, is blocked and these pathways of the UPR are thus not productive. Expression of canonical ER chaperones is part of the response of heat stressed cells but another set of transcription factors has been recruited to regulate expression of these ER chaperones.

Indexed as

Heat-Shock ResponseUnfolded Protein ResponseActivating Transcription Factor 4DNA-Binding ProteinsEndoplasmic ReticulumEndoplasmic Reticulum Chaperone BiPEukaryotic Initiation Factor-2Genes, ReporterHeat-Shock ProteinsHeat Shock Transcription FactorsHEK293 CellsHSP40 Heat-Shock ProteinsHumansMembrane ProteinsMolecular ChaperonesOpen Reading FramesActivating Transcription Factor 4DNA-Binding ProteinsDNAJB9 protein, humanEndoplasmic Reticulum Chaperone BiPEukaryotic Initiation Factor-2Heat-Shock ProteinsHeat Shock Transcription FactorsHSF1 protein, humanHSP40 Heat-Shock ProteinsHSPA5 protein, humanMembrane ProteinsMolecular ChaperonesRegulatory Factor X Transcription FactorsRNA, MessengerTranscription FactorsX-Box Binding Protein 1XBP1 protein, human

Identifiers

PMID21853144
PMCPMC3154502
OpenAlexW2055525599

What OpenQuestion holds

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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.