Evidence map›Paper›PMID 34292154›Full record

ArticleeLife2021

Cytosolic aggregation of mitochondrial proteins disrupts cellular homeostasis by stimulating the aggregation of other proteins.

Urszula Nowicka, Piotr Chroscicki, Karen Stroobants, Maria Sladowska, Michal Turek, Barbara Uszczynska-Ratajczak, Rishika Kundra, Tomasz Goral, Michele Perni, Christopher M Dobson and 2 more

Open access · goldAbstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
8.0field-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

57 citing papers in PubMed, 118 citations in OpenAlex.

  1. Review
  2. Review
  3. The role of the nucleus in the control of mitochondrial precursor proteins in yeast.Protein science : a publication of the Protein Society · 2026
    Review
  4. Quality control of protein import into mammalian mitochondria.Protein science : a publication of the Protein Society · 2026
    Review
  5. mtHsp70 chaperone converts mitochondrial proteostasis stress into impaired protein import.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  6. Functions of J-domain proteins in mitochondrial protein biogenesis.Protein science : a publication of the Protein Society · 2026
    Review
  7. Function and regulation of the mitochondrial stress response.Nature structural & molecular biology · 2026
    Review
  8. Mitochondrial presequences are more than just address labels.Protein science : a publication of the Protein Society · 2026
    Review
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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 3 countries.

Urszula NowickaReMedy International Research Agenda Unit, University of Warsaw, Warsaw, Poland.ORCID 0000-0001-7446-3786
Piotr Chroscicki *Centre of New Technologies, University of Warsaw, Warsaw, Poland.ORCID 0000-0002-4291-3284
Karen Stroobants *Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge, United Kingdom.
Maria SladowskaCentre of New Technologies, University of Warsaw, Warsaw, Poland.
Michal TurekReMedy International Research Agenda Unit, University of Warsaw, Warsaw, Poland.
Barbara Uszczynska-RatajczakCentre of New Technologies, University of Warsaw, Warsaw, Poland.
Rishika KundraCentre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge, United Kingdom.
Tomasz GoralReMedy International Research Agenda Unit, University of Warsaw, Warsaw, Poland.
Michele PerniCentre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge, United Kingdom.ORCID 0000-0001-7593-8376
Christopher M DobsonCentre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge, United Kingdom.
Michele VendruscoloCentre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge, United Kingdom.ORCID 0000-0002-3616-1610
Agnieszka ChacinskaReMedy International Research Agenda Unit, University of Warsaw, Warsaw, Poland.ORCID 0000-0002-2832-2568
University of Cambridge · GBPublic Agenda · USInternational Institute of Molecular and Cell Biology · PLInstitute of Bioorganic Chemistry, Polish Academy of Sciences · PL

Funding

Enhancing and expanding the CGC Strain CollectionP40OD010440 · OD · UNIVERSITY OF MINNESOTA · PI Ann E. Rougvie · 2012 to 2026
$7.5M
NIH HHS P40 OD010440
6 · The paper itself

Abstract

Mitochondria are organelles with their own genomes, but they rely on the import of nuclear-encoded proteins that are translated by cytosolic ribosomes. Therefore, it is important to understand whether failures in the mitochondrial uptake of these nuclear-encoded proteins can cause proteotoxic stress and identify response mechanisms that may counteract it. Here, we report that upon impairments in mitochondrial protein import, high-risk precursor and immature forms of mitochondrial proteins form aberrant deposits in the cytosol. These deposits then cause further cytosolic accumulation and consequently aggregation of other mitochondrial proteins and disease-related proteins, including α-synuclein and amyloid β. This aggregation triggers a cytosolic protein homeostasis imbalance that is accompanied by specific molecular chaperone responses at both the transcriptomic and protein levels. Altogether, our results provide evidence that mitochondrial dysfunction, specifically protein import defects, contributes to impairments in protein homeostasis, thus revealing a possible molecular mechanism by which mitochondria are involved in neurodegenerative diseases.

Indexed as

Protein AggregatesProteostasisAlzheimer DiseaseAnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsCytosolDatabases, GeneticHeat-Shock ProteinsHumansMitochondriaMitochondrial ProteinsMolecular ChaperonesProtein TransportSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsCaenorhabditis elegans ProteinsHeat-Shock ProteinsHsP104 protein, S cerevisiaeHSP42 protein, S cerevisiaeMitochondrial ProteinsMolecular ChaperonesProtein AggregatesSaccharomyces cerevisiae ProteinsaggregationbiochemistryC. eleganschaperoneschemical biologyhomeostasismetastable proteinsmitochondrianeurodegenerationS. cerevisiae

Identifiers

PMID34292154
PMCPMC8457837
OpenAlexW3185269522

What OpenQuestion holds

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LicenceCC BY
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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.