Evidence map›Paper›PMID 28798664›Full record

ArticleFrontiers in molecular neuroscience2017

Interplay of Energetics and ER Stress Exacerbates Alzheimer's Amyloid-β (Aβ) Toxicity in Yeast.

Xin Chen, Markus M M Bisschops, Nisha R Agarwal, Boyang Ji, Kumaravel P Shanmugavel, Dina Petranovic

Abstract read
In one paragraph

Article in Frontiers in molecular neuroscience, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Alzheimer's Disease: Significant Benefit from the Yeast-Based Models.International journal of molecular sciences · 2023
    Review
  5. Article
  6. UBBAging · 2021
    Article
  7. A Toxic Synergy between Aluminium and Amyloid Beta in Yeast.International journal of molecular sciences · 2021
    Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Recent Insights on Alzheimer's Disease Originating from Yeast Models.International journal of molecular sciences · 2018
    Review
  13. Different Expression Levels of Human Mutant Ubiquitin BFrontiers in molecular neuroscience · 2018
    Article
  14. The Impact of ESCRT on AβFrontiers in molecular neuroscience · 2018
    Article
  15. Review
  16. 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.

Xin ChenDivision of Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of TechnologyGothenburg, Sweden.
Markus M M BisschopsDivision of Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of TechnologyGothenburg, Sweden.
Nisha R AgarwalDivision of Chemical Biology, Department of Biology and Biological Engineering, Chalmers University of TechnologyGothenburg, Sweden.
Boyang JiDivision of Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of TechnologyGothenburg, Sweden.
Kumaravel P ShanmugavelDivision of Chemical Biology, Department of Biology and Biological Engineering, Chalmers University of TechnologyGothenburg, Sweden.
Dina PetranovicDivision of Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of TechnologyGothenburg, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Alzheimer's disease (AD) is a progressive neurodegeneration. Oligomers of amyloid-β peptides (Aβ) are thought to play a pivotal role in AD pathogenesis, yet the mechanisms involved remain unclear. Two major isoforms of Aβ associated with AD are Aβ40 and Aβ42, the latter being more toxic and prone to form oligomers. Here, we took a systems biology approach to study two humanized yeast AD models which expressed either Aβ40 or Aβ42 in bioreactor cultures. Strict control of oxygen availability and culture pH, strongly affected chronological lifespan and reduced variations during cell growth. Reduced growth rates and biomass yields were observed upon Aβ42 expression, indicating a redirection of energy from growth to maintenance. Quantitative physiology analyses furthermore revealed reduced mitochondrial functionality and ATP generation in Aβ42 expressing cells, which matched with observed aberrant mitochondrial structures. Genome-wide expression level analysis showed that Aβ42 expression triggered strong ER stress and unfolded protein responses. Equivalent expression of Aβ40, however, induced only mild ER stress, which resulted in hardly affected physiology. Using AD yeast models in well-controlled cultures strengthened our understanding on how cells translate different Aβ toxicity signals into particular cell fate programs, and further enhance their potential as a discovery platform to identify possible therapies.

Indexed as

Alzheimer's diseaseamyloid-βenergeticsER stressyeast

Identifiers

PMID28798664
PMCPMC5529408

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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.