Evidence map›Paper›PMID 32558274›Full record

ArticleMolecular systems biology2020

Reduced proteasome activity in the aging brain results in ribosome stoichiometry loss and aggregation.

Erika Kelmer Sacramento, Joanna M Kirkpatrick, Mariateresa Mazzetto, Mario Baumgart, Aleksandar Bartolome, Simone Di Sanzo, Cinzia Caterino, Michele Sanguanini, Nikoletta Papaevgeniou, Maria Lefaki and 11 more

Abstract read
In one paragraph

Article in Molecular systems biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 141 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
141citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

141 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Shift of the insoluble content of the proteome in the aging mouse brain.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Pooled it
  2. Pooled it
  3. Article
  4. Proteostasis and ageing dissidence.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
    Review
  5. Article
  6. The Hallmarks of Aging: From Molecular Mechanisms to Clinical Translation.International journal of molecular sciences · 2026
    Review
  7. Review
  8. Article
  9. SIEVEseq: unified differential expression, variability, and skewness analyses using RNA-Seq data.DNA research : an international journal for rapid publication of reports on genes and genomes · 2026
    Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Engulfment by brain macrophages in a short-lived vertebrate.bioRxiv : the preprint server for biology · 2026
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

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

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

21 authors.

Erika Kelmer Sacramento *Leibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany.ORCID 0000-0002-3336-982X
Joanna M Kirkpatrick *Leibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany.
Mariateresa Mazzetto *Leibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany.
Mario BaumgartLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany.
Aleksandar BartolomeLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany.
Simone Di SanzoLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany.
Cinzia CaterinoLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany.
Michele SanguaniniCentre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge, UK.ORCID 0000-0002-7142-3807
Nikoletta PapaevgeniouInstitute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece.
Maria LefakiInstitute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece.
Dorothee ChildsEuropean Molecular Biology Laboratory, Heidelberg, Germany.
Sara BagnoliBio@SNS, Scuola Normale Superiore, Pisa, Italy.
Eva Terzibasi TozziniBio@SNS, Scuola Normale Superiore, Pisa, Italy.
Domenico Di FraiaLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany.
Natalie RomanovEuropean Molecular Biology Laboratory, Heidelberg, Germany.
Peter H SudmantUniversity of California Berkeley, Berkeley, CA, USA.ORCID 0000-0002-9573-8248
Wolfgang HuberEuropean Molecular Biology Laboratory, Heidelberg, Germany.
Niki ChondrogianniInstitute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece.
Michele VendruscoloCentre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge, UK.ORCID 0000-0002-3616-1610
Alessandro CellerinoLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany.ORCID 0000-0003-3834-0097
Alessandro OriLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Jena, Germany.ORCID 0000-0002-3046-0871

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A progressive loss of protein homeostasis is characteristic of aging and a driver of neurodegeneration. To investigate this process quantitatively, we characterized proteome dynamics during brain aging in the short-lived vertebrate Nothobranchius furzeri combining transcriptomics and proteomics. We detected a progressive reduction in the correlation between protein and mRNA, mainly due to post-transcriptional mechanisms that account for over 40% of the age-regulated proteins. These changes cause a progressive loss of stoichiometry in several protein complexes, including ribosomes, which show impaired assembly/disassembly and are enriched in protein aggregates in old brains. Mechanistically, we show that reduction of proteasome activity is an early event during brain aging and is sufficient to induce proteomic signatures of aging and loss of stoichiometry in vivo. Using longitudinal transcriptomic data, we show that the magnitude of early life decline in proteasome levels is a major risk factor for mortality. Our work defines causative events in the aging process that can be targeted to prevent loss of protein homeostasis and delay the onset of age-related neurodegeneration.

Indexed as

Protein AggregatesAgingAnimalsBiophysical PhenomenaBrainCyprinodontiformesMice, Inbred C57BLProteasome Endopeptidase ComplexReproducibility of ResultsRibosomal ProteinsRibosomesRisk FactorsRNA, MessengerTranscriptomeProteasome Endopeptidase ComplexProtein AggregatesRibosomal ProteinsRNA, Messengeraginglifespanproteomestoichiometrytranscriptome

Identifiers

PMID32558274
PMCPMC7301280

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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.