Evidence map›Paper›PMID 24521233›Full record

ArticleASN neuro2014

Accumulation of amyloid-like Aβ1-42 in AEL (autophagy-endosomal-lysosomal) vesicles: potential implications for plaque biogenesis.

Daijun Ling, Martha Magallanes, Paul M Salvaterra

Abstract read
In one paragraph

Article in ASN neuro, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Frontiers in neuroscience · 2023
    Review
  6. Article
  7. Review
  8. Defects of Nutrient Signaling and Autophagy in Neurodegeneration.Frontiers in cell and developmental biology · 2022
    Review
  9. Review
  10. Review
  11. Review
  12. Selective autophagy as a therapeutic target for neurological diseases.Cellular and molecular life sciences : CMLS · 2021
    Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. UsingBioMed research international · 2018
    Review
  18. Amyloid precursor protein and endosomal-lysosomal dysfunction in Alzheimer's disease: inseparable partners in a multifactorial disease.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2017
    Review
  19. Article
  20. Autophagy and Alzheimer's Disease.Cellular and molecular neurobiology · 2017
    Review
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

3 authors.

Daijun Ling*Department of Neuroscience, Beckman Research Institute of City of Hope, Duarte, CA 91010, U.S.A.
Martha Magallanes*Department of Neuroscience, Beckman Research Institute of City of Hope, Duarte, CA 91010, U.S.A.
Paul M Salvaterra

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Abnormal accumulation of Aβ (amyloid β) within AEL (autophagy-endosomal-lysosomal) vesicles is a prominent neuropathological feature of AD (Alzheimer's disease), but the mechanism of accumulation within vesicles is not clear. We express secretory forms of human Aβ1-40 or Aβ1-42 in Drosophila neurons and observe preferential localization of Aβ1-42 within AEL vesicles. In young animals, Aβ1-42 appears to associate with plasma membrane, whereas Aβ1-40 does not, suggesting that recycling endocytosis may underlie its routing to AEL vesicles. Aβ1-40, in contrast, appears to partially localize in extracellular spaces in whole brain and is preferentially secreted by cultured neurons. As animals become older, AEL vesicles become dysfunctional, enlarge and their turnover appears delayed. Genetic inhibition of AEL function results in decreased Aβ1-42 accumulation. In samples from older animals, Aβ1-42 is broadly distributed within neurons, but only the Aβ1-42 within dysfunctional AEL vesicles appears to be in an amyloid-like state. Moreover, the Aβ1-42-containing AEL vesicles share properties with AD-like extracellular plaques. They appear to be able to relocate to extracellular spaces either as a consequence of age-dependent neurodegeneration or a non-neurodegenerative separation from host neurons by plasma membrane infolding. We propose that dysfunctional AEL vesicles may thus be the source of amyloid-like plaque accumulation in Aβ1-42-expressing Drosophila with potential relevance for AD.

Indexed as

AgingAlzheimer DiseaseAmyloid beta-PeptidesAmyloidosisAnimalsAnimals, Genetically ModifiedAutophagyBrainCell MembraneCells, CulturedCytoplasmic VesiclesDrosophila melanogasterEndocytosisEndosomesExtracellular SpaceHumansAmyloid beta-Peptidesamyloid beta-protein (1-40)amyloid beta-protein (1-42)Peptide Fragments

Identifiers

PMID24521233
PMCPMC4379859

What OpenQuestion holds

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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.