Cited by 233Alzheimer's disease research and treatmentsCholesterol and Lipid MetabolismNeuroinflammation and Neurodegeneration Mechanisms

The absence of ABCA1 decreases soluble ApoE levels but does not diminish amyloid deposition in two murine models of Alzheimer disease

Open access
Hirsch-Reinshagen, Veronica, Maia, Luis F., Burgess, Braydon L., Blain, Jean-Francois, Naus, Kathryn E., McIsaac, Sean A., Parkinson, Pamela F., Chan, Jennifer Y. +5 more·2005·Journal of Biological Chemistry

Abstract

ABCA1, a cholesterol transporter expressed in the brain, has been shown recently to be required to maintain normal apoE levels and lipidation in the central nervous system. In addition, ABCA1 has been reported to modulate beta-amyloid (Abeta) production in vitro. These observations raise the possibility that ABCA1 may play a role in the pathogenesis of Alzheimer disease. Here we report that the deficiency of ABCA1 does not affect soluble or guanidine-extractable Abeta levels in Tg-SwDI/B or amyloid precursor protein/presenilin 1 (APP/PS1) mice, but rather is associated with a dramatic reduction in soluble apoE levels in brain. Although this reduction in apoE was expected to reduce the amyloid burden in vivo, we observed that the parenchymal and vascular amyloid load was increased in Tg-SwDI/B animals and was not diminished in APP/PS1 mice. Furthermore, we observed an increase in the proportion of apoE retained in the insoluble fraction, particularly in the APP/PS1 model. These data suggested that ABCA1-mediated effects on apoE levels and lipidation influenced amyloidogenesis in vivo.

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 · 10.1074/jbc.m508781200

Cites

94 of 94 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?

  • ABCA1-mediated lipidation of apoE modulates amyloid plaque formation.

    “In support of this possibility, it was recently demonstrated that ATP-binding cassette transporter A1 (ABCA1)-mediated lipidation of apoE modulates amyloid plaque formation (Hirsch-Reinshagen et al., 2005; Koldamova et al., 2005; Wahrle et al., 2005; Wahrle et al., 2008).”

    From Overexpression of Low-Density Lipoprotein Receptor in the Brain Markedly Inhibits Amyloid Deposition and Increases Extracellular Aβ Clearance (2009) · cites this paper as Hirsch-Reinshagen et al., 2005

    The Abstract reports that ABCA1 deficiency increased amyloid load in one mouse model and did not diminish it in another; it concludes that effects on apoE levels and lipidation *suggested* an influence on amyloidogenesis. The Discussion treats poor apoE lipidation as a possible explanation, not a demonstrated mechanism. Thus the paper supports an ABCA1–amyloid link, but not the claim that apoE lipidation itself was demonstrated to modulate plaque formation. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • ABCA1 overexpression or LXR/RXR agonist treatment decreases amyloid deposition in APP transgenic mouse models.

    “ABCA1 overexpression or LXR/RXR agonist treatment decreased amyloid deposition [66-69].”

    From MicroRNAs in brain cholesterol metabolism and their implications for Alzheimer's disease (2016) · cites this paper as [66]

    The paper reports that an LXR ligand reduced Aβ40 and Aβ42 levels in APP23 mice, which supports part of the treatment claim, but it does not say that the treatment reduced amyloid deposition. Its own study examines ABCA1 deficiency, not overexpression, and the cited passages do not report an RXR-agonist experiment. The relevant passages are labeled Abstract in our copy; no page number is available. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • ABCA1 gene ablation in mice decreases APOE lipidation and levels and increases Aβ accumulation in APP transgenic mouse models.

    “ABCA1 gene ablation in mice decreased APOE lipidation and levels and increased Aβ accumulation in APP transgenic mouse models.”

    From MicroRNAs in brain cholesterol metabolism and their implications for Alzheimer's disease (2016) · cites this paper as [66]

    The ‘Deficiency of ABCA1 Reduces Soluble ApoE Levels in Vivo’ section reports lower soluble apoE in both APP-transgenic models, and the Discussion describes apoE in ABCA1-deficient mice as poorly lipidated. The ‘ABCA1 Deficiency Increases Aβ Deposition in Tg-SwDI/B’ section reports increased Aβ deposition in Tg-SwDI/B mice, but no significant increase in APP/PS1 mice; the claim overgeneralizes the accumulation finding to both models. Page numbers were not available in our copy. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Modulation of ABCA1 affects Aβ levels and amyloid accumulation in vivo.

    “We and others demonstrated that modulation of ABCA1 affects Aβ levels and amyloid accumulation in vivo.”

    From miR-106b impairs cholesterol efflux and increases Aβ levels by repressing ABCA1 expression (2012) · cites this paper as Hirsch-Reinshagen et al., 2005

    The Discussion reports increased amyloid deposition in one of this paper’s mouse models and describes other in vivo studies that found elevated Aβ levels with ABCA1 deficiency. But this paper found no significant change in Aβ levels in either of its models, so it does not demonstrate that ABCA1 modulation affected both outcomes in its own experiments. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • ABCA1 deficiency leads to an increase in Aβ and amyloid deposition.

    “ABCA1 deficiency leads to an increase in Aβ and amyloid deposition (Hirsch-Reinshagen et al., 2005; Koldamova et al., 2005; Wahrle et al., 2005)”

    From miR-106b impairs cholesterol efflux and increases Aβ levels by repressing ABCA1 expression (2012) · cites this paper as Hirsch-Reinshagen et al., 2005

    The Results sections report increased Aβ and amyloid deposition in ABCA1-deficient Tg-SwDI/B mice. But the Abstract states that soluble and guanidine-extractable Aβ levels were unchanged in both mouse models, and Aβ deposits did not significantly increase in APP/PS1 mice. The claim omits these distinctions; page numbers were not available in the supplied copy. (LLM, conf=0.90)

    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

1 of the 95 references couldn’t be matched to a known paper.

Research works printed but not linked: 12

  1. Selkoe, D. J. (2001) Proc. Natl. Acad. Sci. U. S. A. 98, 11039 -11041
  2. Corder, E. H., Saunders, A. M., Strittmatter, W. J., Schmechel, D. E., Gaskell, P. C., Small, G. W., Roses, A. D., Haines, J. L., and Pericak-Vance, M. A. (1993) Science 261, 921-923
  3. Corder, E. H., Saunders, A. M., Risch, N. J., Strittmatter, W. J., Schmechel, D. E., Gaskell, P. C., Rimmler, J. B., Locke, P. A., Conneally, P. M., Schmader, K. E., Small, G. W., Roses, A. D., Haines, J. L., and Pericak-Vance, M. A. (1994) Nat. Genet. 7, 180 -184
  4. Ignatius, M. J., Gebicke-Harter, P. J., Skene, J. H., Schilling, J. W., and Weisgraber, K. H. (1986) Proc. Natl. Acad. Sci. U. S. A. 83, 1125-1129
  5. Bales, K. R., Verina, T., Cummins, D. J., Du, Y., Dodel, R. C., Saura, J., Fishman, C. E., DeLong, C. A., Piccardo, P., Petegnief, V., Ghetti, B., and Paul, S. M. (1999) Proc. Natl. Acad. Sci. U. S. A. 96, 15233-15238
  6. Fassbender, K., Simons, M., Bergmann, C., Stroick, M., Lu ¨tjohann, D., Keller, P., Runz, H., Ku ¨hl, S., Bertsch, T., von Bergmann, K., Hennerici, M., Beyreuther, K., and Hart- mann, T. (2001) Proc. Natl. Acad. Sci. U. S. A. 98, 5856 -5861
  7. Kojro, E., Gimple, G., Lammich, S., Ma ¨rz, W., and Fahrenholz, F. (2001) Proc. Natl. Acad. Sci. U. S. A. 98, 5815-5820
  8. Simons, M., Keller, P., De Strooper, B., Beyreuther, K., Dottie, C. G., and Simons, K. (1998) Proc. Natl. Acad. Sci. U. S. A. 95, 6460 -6464
  9. McNeish, J., Aiello, R. J., Guyot, D., Turi, T., Gabel, C., Aldinger, C., Hoppe, K. L., Roach, M. L., Royer, L. J., de Wet, J., Broccardo, C., Chimini, G., and Francone, O. L. (2000) Proc. Natl. Acad. Sci. U. S. A. 97, 4245-4250
  10. Vaucher, E., Aumont, N., Pearson, D., Rowe, W., Poirier, J., and Kar, S. (2001) J. Chem. Neuroanat. 21, 323-329
  11. Holtzman, D. M., Bales, K. R., Tenkova, T., Fagan, A. M., Parsadanian, M., Sartorius, L. J., Mackey, B., Olney, J., McKeel, D., Wozniak, D., and Paul, S. M. (2000) Proc. Natl. Acad. Sci. U. S. A. 97, 2892-2897
  12. Strittmatter, W. J., Saunders, A. M., Schmechel, D., Pericak-Vance, M., Enghild, J., Salveson, G. S., and Roses, A. D. (1993) Proc. Natl. Acad. Sci. U. S. A. 90, 1977-1981

Cited by

Sorted by citations

Authors
Hirsch-Reinshagen, V., Maia, L. F., Burgess, B. L., Blain, J.-F., Naus, K. E., McIsaac, S. A., Parkinson, P. F., Chan, J. Y., Tansley, G. H., Hayden, M. R., Poirier, J., Van Nostrand, W., & Wellington, C. L.
Affiliations
  • University of British Columbia (CA)
  • McGill University Research Centre for Studies in Aging (CA)
Corresponding author
Wellington, Cheryl L.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2005-12
Volume
280
Issue
52
Pages
43243-43256
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2151049459
Cited by
233
References
95
Citations by year
2026: 2 · 2025: 3 · 2024: 6 · 2023: 6 · 2022: 11 · 2021: 8 · 2020: 5 · 2019: 9 · 2018: 7 · 2017: 11 · 2016: 10 · 2015: 10 · 2014: 20 · 2013: 13 · 2012: 19
FWCI
9.03
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion, other-oa)
Funders
  • AstraZeneca
  • Heart and Stroke Foundation of Canada
  • Child and Family Research Institute
  • Alzheimer Society
  • National Institutes of Health
  • Canadian Institutes of Health Research
  • National Institute of Neurological Disorders and Stroke (R01NS036645, NS36645)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
ABCA1, apolipoprotein E, amyloid deposition, Alzheimer's disease, amyloid-beta, amyloid precursor protein, presenilin 1, APP/PS1 mice, cholesterol transport, amyloidogenesis
MeSH terms
Alzheimer Disease, Amyloid, Animals, Apolipoproteins E, Brain, Cerebral Cortex, Cholesterol, Densitometry, Disease Models, Animal, Enzyme-Linked Immunosorbent Assay, Hippocampus, Humans, Immunohistochemistry, Lipids, Membrane Proteins, Mice, Inbred C57BL, Blotting, Western, ATP-Binding Cassette Transporters, Transgenes, Guanidine, Mice, Presenilin-1, ATP Binding Cassette Transporter 1

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