Evidence map›Paper›PMID 28241148›Full record

ArticleNature2017

Cytosolic proteostasis through importing of misfolded proteins into mitochondria.

Linhao Ruan, Chuankai Zhou, Erli Jin, Andrei Kucharavy, Ying Zhang, Zhihui Wen, Laurence Florens, Rong Li

Open access · greenAbstract read
In one paragraph

Article in Nature, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 284 papers.

0numbers the graph read from it
0cells of the map it votes in
284citing papers in PubMed
24.1field-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

284 citing papers in PubMed, 490 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Targeting the non-coding RNA-PANoptosis axis: a novel frontier in disease diagnosis and therapy.Apoptosis : an international journal on programmed cell death · 2026
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Quality control of protein import into mammalian mitochondria.Protein science : a publication of the Protein Society · 2026
    Review
  13. Article
  14. In and out of the mitochondrial intermembrane space.Protein science : a publication of the Protein Society · 2026
    Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Review

224 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Linhao RuanCenter for Cell Dynamics, Department of Cell Biology, Johns Hopkins University School of Medicine, 855 North Wolfe Street, Baltimore, Maryland 21205, USA.
Chuankai ZhouStowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA.
Erli JinDepartment of Chemical and Biomolecular Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA.
Andrei KucharavyCenter for Cell Dynamics, Department of Cell Biology, Johns Hopkins University School of Medicine, 855 North Wolfe Street, Baltimore, Maryland 21205, USA.
Ying ZhangStowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA.
Zhihui WenStowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA.
Laurence FlorensStowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA.
Rong LiCenter for Cell Dynamics, Department of Cell Biology, Johns Hopkins University School of Medicine, 855 North Wolfe Street, Baltimore, Maryland 21205, USA.
Stowers Institute for Medical Research · USJohns Hopkins University · USJohns Hopkins Medicine · US

Funding

Cellular dynamics in division, motility and evolutionary adaptationR35GM118172 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI LI, RONG · 2016 to 2019
$2.8M
NIGMS NIH HHS R35 GM118172
6 · The paper itself

Abstract

Loss of proteostasis underlies ageing and neurodegeneration characterized by the accumulation of protein aggregates and mitochondrial dysfunction. Although many neurodegenerative-disease-associated proteins can be found in mitochondria, it remains unclear how mitochondrial dysfunction and protein aggregation could be related. In dividing yeast cells, protein aggregates that form under stress or during ageing are preferentially retained by the mother cell, in part through tethering to mitochondria, while the disaggregase Hsp104 helps to dissociate aggregates and thereby enables refolding or degradation of misfolded proteins. Here we show that, in yeast, cytosolic proteins prone to aggregation are imported into mitochondria for degradation. Protein aggregates that form under heat shock contain both cytosolic and mitochondrial proteins and interact with the mitochondrial import complex. Many aggregation-prone proteins enter the mitochondrial intermembrane space and matrix after heat shock, and some do so even without stress. Timely dissolution of cytosolic aggregates requires the mitochondrial import machinery and proteases. Blocking mitochondrial import but not proteasome activity causes a marked delay in the degradation of aggregated proteins. Defects in cytosolic Hsp70s leads to enhanced entry of misfolded proteins into mitochondria and elevated mitochondrial stress. We term this mitochondria-mediated proteostasis mechanism MAGIC (mitochondria as guardian in cytosol) and provide evidence that it may exist in human cells.

Indexed as

HomeostasisProtein FoldingSaccharomyces cerevisiaeCell LineCytosolHeat-Shock ResponseHSP70 Heat-Shock ProteinsHumansMitochondriaMitochondrial ProteinsPeptide HydrolasesProteasome Endopeptidase ComplexProtein AggregatesProtein RefoldingProteinsProtein StabilityHSP70 Heat-Shock ProteinsMitochondrial ProteinsPeptide HydrolasesProteasome Endopeptidase ComplexProtein AggregatesProteins

Identifiers

PMID28241148
PMCPMC5793917
OpenAlexW2594299422

What OpenQuestion holds

Textmetadata
LicenceTDM
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.