Evidence map›Paper›PMID 36690850›Full record

ArticleNature cell biology2023

Small heat shock proteins operate as molecular chaperones in the mitochondrial intermembrane space.

Elias Adriaenssens, Bob Asselbergh, Pablo Rivera-Mejías, Sven Bervoets, Leen Vendredy, Vicky De Winter, Katrien Spaas, Riet de Rycke, Gert van Isterdael, Francis Impens and 2 more

Open access · hybridFull text read
In one paragraph

Article in Nature cell biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
11.4field-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

49 citing papers in PubMed, 74 citations in OpenAlex.

  1. More than the 'master regulator of cytosolic proteostasis': new roles for HSF1 in promoting tissue health.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
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  2. Article
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  8. GET3 regulates apoptosis via tail-anchoring of MCL1.Cell death and differentiation · 2026
    Article
  9. Quality control of protein import into mammalian mitochondria.Protein science : a publication of the Protein Society · 2026
    Review
  10. Review
  11. Article
  12. In and out of the mitochondrial intermembrane space.Protein science : a publication of the Protein Society · 2026
    Review
  13. Article
  14. Article
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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

12 authors at 4 institutions in 2 countries.

Elias AdriaenssensPeripheral Neuropathy Research Group, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.
Bob AsselberghNeuromics Support Facility, VIB Center for Molecular Neurology, University of Antwerp, Antwerp, Belgium.ORCID http://orcid.org/0000-0003-2784-2470
Pablo Rivera-MejíasMax Planck Institute for Biology of Ageing, Cologne, Germany.
Sven BervoetsVIB Center for Molecular Neurology, University of Antwerp, Antwerp, Belgium.ORCID http://orcid.org/0000-0002-0607-4655
Leen VendredyPeripheral Neuropathy Research Group, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.
Vicky De WinterPeripheral Neuropathy Research Group, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.
Katrien SpaasNeuromics Support Facility, VIB Center for Molecular Neurology, University of Antwerp, Antwerp, Belgium.
Riet de RyckeVIB Bioimaging Core, Ghent University, Ghent, Belgium.
Gert van IsterdaelDepartment of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
Francis ImpensVIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.ORCID http://orcid.org/0000-0003-2886-9616
Thomas LangerMax Planck Institute for Biology of Ageing, Cologne, Germany.ORCID http://orcid.org/0000-0003-1250-1462
Vincent TimmermanPeripheral Neuropathy Research Group, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium. vincent.timmerman@uantwerpen.be.ORCID http://orcid.org/0000-0002-2162-0933
University of Antwerp · BEGhent University · BEMax Planck Institute for Biology of Ageing · DEUniversity of Cologne · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitochondria are complex organelles with different compartments, each harbouring their own protein quality control factors. While chaperones of the mitochondrial matrix are well characterized, it is poorly understood which chaperones protect the mitochondrial intermembrane space. Here we show that cytosolic small heat shock proteins are imported under basal conditions into the mitochondrial intermembrane space, where they operate as molecular chaperones. Protein misfolding in the mitochondrial intermembrane space leads to increased recruitment of small heat shock proteins. Depletion of small heat shock proteins leads to mitochondrial swelling and reduced respiration, while aggregation of aggregation-prone substrates is countered in their presence. Charcot-Marie-Tooth disease-causing mutations disturb the mitochondrial function of HSPB1, potentially linking previously observed mitochondrial dysfunction in Charcot-Marie-Tooth type 2F to its role in the mitochondrial intermembrane space. Our results reveal that small heat shock proteins form a chaperone system that operates in the mitochondrial intermembrane space.

Indexed as

Heat-Shock Proteins, SmallMitochondriaMitochondrial ProteinsMolecular ChaperonesHeat-Shock Proteins, SmallMitochondrial ProteinsMolecular Chaperones

Identifiers

PMID36690850
PMCPMC10014586
OpenAlexW4317757497

What Socratic holds

Textfull text, public
LicenceCC BY
measurements read209
identifiers read1
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 Socratic graph.