Evidence map›Paper›PMID 33290404›Full record

ArticlePLoS biology2020

The Drosophila amyloid precursor protein homologue mediates neuronal survival and neuroglial interactions.

Irini A Kessissoglou, Dominique Langui, Amr Hasan, Maral Maral, Suchetana B Dutta, Peter Robin Hiesinger, Bassem A Hassan

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.4field-weighted citation impact, top 10% 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

12 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
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  9. Dysregulation of BMP, Wnt, and Insulin Signaling in Fragile X Syndrome.Frontiers in cell and developmental biology · 2022
    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

7 authors at 2 institutions in 3 countries.

Irini A KessissoglouParis Brain Institute, Hôpital Pitié-Salpêtrière, Inserm U 1127, CNRS UMR, Sorbonne Université, Paris, France.ORCID 0000-0001-9061-7335
Dominique LanguiParis Brain Institute, Hôpital Pitié-Salpêtrière, Inserm U 1127, CNRS UMR, Sorbonne Université, Paris, France.
Amr HasanDivision of Neurobiology, Institute for Biology, Freie Universität Berlin, Berlin, Germany.
Maral MaralParis Brain Institute, Hôpital Pitié-Salpêtrière, Inserm U 1127, CNRS UMR, Sorbonne Université, Paris, France.ORCID 0000-0003-3267-0036
Suchetana B DuttaParis Brain Institute, Hôpital Pitié-Salpêtrière, Inserm U 1127, CNRS UMR, Sorbonne Université, Paris, France.ORCID 0000-0002-3209-1221
Peter Robin HiesingerDivision of Neurobiology, Institute for Biology, Freie Universität Berlin, Berlin, Germany.
Bassem A HassanParis Brain Institute, Hôpital Pitié-Salpêtrière, Inserm U 1127, CNRS UMR, Sorbonne Université, Paris, France.ORCID 0000-0001-9533-4908
Centre National de la Recherche Scientifique · FRFreie Universität Berlin · DE

Funding

Resource Component: Acquisition, maintenance and distribution of Drosophila stocksP40OD018537 · OD · TRUSTEES OF INDIANA UNIVERSITY · PI Annette L. Parks · 2014 to 2026
$13.5M
Regulation of Synaptic Specificity in the Visual System by Intracellular TraffickR01EY018884 · NEI · UT SOUTHWESTERN MEDICAL CENTER · PI HIESINGER, PETER ROBIN · 2008 to 2018
$3.6M
NEI NIH HHS R01 EY018884NIH HHS P40 OD018537
6 · The paper itself

Abstract

The amyloid precursor protein (APP) is a structurally and functionally conserved transmembrane protein whose physiological role in adult brain function and health is still unclear. Because mutations in APP cause familial Alzheimer's disease (fAD), most research focuses on this aspect of APP biology. We investigated the physiological function of APP in the adult brain using the fruit fly Drosophila melanogaster, which harbors a single APP homologue called APP Like (APPL). Previous studies have provided evidence for the implication of APPL in neuronal wiring and axonal growth through the Wnt signaling pathway during development. However, like APP, APPL continues to be expressed in all neurons of the adult brain where its functions and their molecular and cellular underpinnings are unknown. We report that APPL loss of function (LOF) results in the dysregulation of endolysosomal function in neurons, with a notable enlargement of early endosomal compartments followed by neuronal cell death and the accumulation of dead neurons in the brain during a critical period at a young age. These defects can be rescued by reduction in the levels of the early endosomal regulator Rab5, indicating a causal role of endosomal function for cell death. Finally, we show that the secreted extracellular domain of APPL interacts with glia and regulates the size of their endosomes, the expression of the Draper engulfment receptor, and the clearance of neuronal debris in an axotomy model. We propose that APP proteins represent a novel family of neuroglial signaling factors required for adult brain homeostasis.

Indexed as

Alzheimer DiseaseAmyloid beta-Protein PrecursorAnimalsBrainCarrier ProteinsCell DeathCell SurvivalDrosophila melanogasterDrosophila ProteinsEndosomesLoss of Function MutationMembrane ProteinsNerve Tissue ProteinsNeurogliaNeuronsSignal TransductionAmyloid beta-Protein PrecursorAppl protein, DrosophilaCarrier ProteinsDrosophila Proteinsdrpr protein, DrosophilaMembrane ProteinsNerve Tissue Proteins

Identifiers

PMID33290404
PMCPMC7723294
OpenAlexW3112771402

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.