Cited by 95Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsDementia and Cognitive Impairment Research

Amyloid plaque structure and cell surface interactions of β-amyloid fibrils revealed by electron tomography

Open access
Han, Shen, Kollmer, Marius, Markx, Daniel, Claus, Stephanie, Walther, Paul, Fändrich, Marcus·2017·Scientific Reports

Abstract

The deposition of amyloid fibrils as plaques is a key feature of several neurodegenerative diseases including in particular Alzheimer’s. This disease is characterized, if not provoked, by amyloid aggregates formed from Aβ peptide that deposit inside the brain or are toxic to neuronal cells. We here used scanning transmission electron microscopy (STEM) to determine the fibril network structure and interactions of Aβ fibrils within a cell culture model of Alzheimer’s disease. STEM images taken from the formed Aβ amyloid deposits revealed three main types of fibril network structures, termed amorphous meshwork, fibril bundle and amyloid star. All three were infiltrated by different types of lipid inclusions from small-sized exosome-like structures (50–100 nm diameter) to large-sized extracellular vesicles (up to 300 nm). The fibrils also presented strong interactions with the surrounding cells such that fibril bundles extended into tubular invaginations of the plasma membrane. Amyloid formation in the cell model was previously found to have an intracellular origin and we show here that it functionally destroys the integrity of the intracellular membranes as it leads to lysosomal leakage. These data provide a mechanistic link to explain why intracellular fibril formation is toxic to the cell.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/srep43577

Cites

44 of 44 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Exogenous Aβ fibrils lead to cell death and disruption of membrane integrity in a cell culture model.

    “More recent studies demonstrate that exogenous Aβ fibrils lead to cell death and disruption of membrane integrity in a cell culture model [41].”

    From The neuropathological diagnosis of Alzheimer's disease (2019) · cites this paper as [41]

    The Results section (“Formation of Aβ amyloid plaques in cell culture”; page not provided) reports cell toxicity and membrane damage after exposure to Aβ peptide, with cell death following fibril formation. But the paper describes adding extracellular peptide that cells internalize and convert into amyloid; it does not establish that exogenous, preformed Aβ fibrils caused those effects. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Han, S., Kollmer, M., Markx, D., Claus, S., Walther, P., & Fändrich, M.
Affiliations
Universität Ulm (DE)
Corresponding author
  • Walther, Paul
  • Fändrich, Marcus
Venue
Scientific Reports
Published
2017-02-27
Volume
7
Issue
1
Pages
43577-43577
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2592429228
Cited by
95
References
44
Citations by year
2026: 3 · 2025: 10 · 2024: 10 · 2023: 17 · 2022: 8 · 2021: 4 · 2020: 14 · 2019: 15 · 2018: 13 · 2017: 1
FWCI
8.70
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Carl-Zeiss-Stiftung
  • Deutsche Forschungsgemeinschaft (FA 456/12-1)
  • Universität Ulm
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
amyloid plaques, amyloid-beta fibrils, Alzheimer's disease, extracellular vesicles, exosomes, lipid inclusions, plasma membrane invaginations, neurodegeneration, cell-surface interactions
MeSH terms
Alzheimer Disease, Amyloid, Cell Membrane, Cell Survival, Cells, Cultured, Humans, Lipids, Amyloid beta-Peptides, Electron Microscope Tomography, Plaque, Amyloid, Protein Aggregation, Pathological, Protein Aggregates

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review