Evidence map›Paper›PMID 9236226›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience1997

Increased neuronal endocytosis and protease delivery to early endosomes in sporadic Alzheimer's disease: neuropathologic evidence for a mechanism of increased beta-amyloidogenesis.

A M Cataldo, J L Barnett, C Pieroni, R A Nixon

Abstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 225 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
225citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 4% 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

225 citing papers in PubMed, 1 synthesis or guideline pooled it, 408 citations in OpenAlex.

  1. Pooled it
  2. APOE4 disrupts the central dogma by arresting neuronal proteome dynamics.bioRxiv : the preprint server for biology · 2026
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  6. bioRxiv : the preprint server for biology · 2026
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  7. Article
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  10. Article
  11. Regulation of autophagy-mediated pathways by diet, physical activity, and sleep in Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  12. Autophagy-lysosomal pathway in neurodegeneration.Molecular neurodegeneration advances · 2026
    Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. ACS chemical biology · 2025
    Article
  20. Article

165 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

4 authors at 1 institution in 1 country.

A M CataldoLaboratories for Molecular Neuroscience, McLean Hospital, Belmont, Massachusetts 02178, USA.
J L Barnett
C Pieroni
R A Nixon
McLean Hospital · US

Funding

BRAIN TISSUE RESOURCE OFR NEUROPSYCHIATRIC RESEARCHR01MH031862 · NIMH · MC LEAN HOSPITAL (BELMONT, MA) · PI BENES, FRANCINE M. · 1985 to 2002
$3.6M
ROLE OF BRAIN PROTEIN 4.1 IN CYTOSKELETON DYNAMICS AND ALZHEIMER'S DISEASER35AG010916 · NIA · NATHAN S. KLINE INSTITUTE FOR PSYCH RES · PI NIXON, RALPH A. · 1992 to 1998
–
NIA NIH HHS 5R35 AG10916-05NIMH NIH HHS MH/NS31862
6 · The paper itself

Abstract

The early endosome is the first vacuolar compartment along the endocytic pathway. It is the site of internalization and initial processing of amyloid precursor protein (APP) and apolipoprotein E (ApoE), two proteins of etiological importance in Alzheimer's disease, and a putative site of beta-amyloid peptide (Abeta) formation. Here, we identify early endosomes in human pyramidal neurons, using specific compartmental markers and morphometry, and show that in Alzheimer's disease individual endosomes display up to 32-fold larger volumes than the normal average. Endosomal enlargement contributed to an average 2.5-fold larger total endosomal volume per neuron, implying a marked increase in endocytic activity. Endosomal alterations were evident in most pyramidal neurons in Alzheimer brain, detectable at early stages of the disease but absent in several other neurodegenerative disorders examined. In addition, mature and proenzyme forms of the proteases cathepsin B and cathepsin D, a candidate APP secretase, were identified in most early endosomes in Alzheimer brains but were detectable in only a minor proportion of endosomes in normal brain. Expression of the cation-dependent 46 kDa mannose 6-phosphate receptor was elevated in pyramidal neurons of Alzheimer brains, which could be a possible basis for the altered cathepsin trafficking pattern. Enhanced endocytic activity, coupled with increased trafficking to endosomes of proteases, which may have the ability under pathological conditions to generate Abeta, constitutes a potential mechanism by which beta-amyloidogenesis may become accelerated in sporadic AD and also be subject to influences by ApoE.

Indexed as

AgedAlzheimer DiseaseAmyloid beta-PeptidesEndocytosisEndopeptidasesEndosomesFluorescent Antibody TechniqueGTP-Binding ProteinsGTP PhosphohydrolasesHumansHydrolasesLysosomesNeuronsrab5 GTP-Binding ProteinsReceptor, IGF Type 2Amyloid beta-PeptidesEndopeptidasesGTP-Binding ProteinsGTP PhosphohydrolasesHydrolasesrab5 GTP-Binding ProteinsReceptor, IGF Type 2

Identifiers

PMID9236226
PMCPMC6568334
OpenAlexW2112222544

What OpenQuestion holds

Textmetadata
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.