Cited by 19Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsDementia and Cognitive Impairment Research

Current insights into apolipoprotein E and the immune response in Alzheimer's disease

Open access
Lin, Peter Bor‐Chian, Holtzman, David M.·2024·Immunological Reviews

Abstract

Summary: Alzheimer's disease (AD) is a progressive neurological disorder and the most common cause of dementia. Genetic analyses identified apolipoprotein E ( APOE ) as the strongest genetic risk for late‐onset AD. Studies have shown that ApoE modulates AD pathogenesis in part by influencing amyloid‐β (Aβ) deposition. However, ApoE also appears to regulate elements of AD via regulation of innate immune response, especially through microglial and astrocyte activation. In model systems, it also regulates changes in T‐cells. This review focuses on the key findings that have advanced our understanding of the role of ApoE in the pathogenesis of AD and the current view of innate immune response regulated by ApoE in AD, while discussing open questions and areas for future research.

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 · 10.1111/imr.13414

Cites

115 of 115 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?

  • The Apoe-App interaction is crucial for the metabolism and clearance of Aβ.

    “The Apoe-App interaction is crucial for the metabolism and clearance of Aβ, a key pathological hallmark of AD.”

    From Cell signaling pathways discovery from multi-modal data (2025) · cites this paper as Lin & Holtzman 2024

    The “ApoE and amyloid-β pathology” section says ApoE likely influences Aβ aggregation and clearance, and discusses Aβ uptake and degradation by microglia. It does not establish that an ApoE–APP interaction is responsible for Aβ metabolism or clearance; APP appears as part of mouse-model descriptions, not as the interacting mechanism claimed. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • These pathways highlight how neuronal and glial interactions modulate microglial activity through Apoe, App, Trem2, and Lrp1.

    “These pathways highlight how neuronal and glial interactions modulate microglial activity through Apoe, App, Trem2, and Lrp1 [Krasemann et al., 2017; Lin & Holtzman 2024; Shinohara et al., 2017].”

    From Cell signaling pathways discovery from multi-modal data (2025) · cites this paper as Lin & Holtzman 2024

    The ‘ApoE and tau pathology’ section reports that ApoE from different cell types modulates microglial activity, including reduced microglial synaptic phagocytosis after astrocytic ApoE4 depletion. The review also cites a TREM2–APOE microglial pathway, but its discussion of APP is in mouse models, and it identifies LRP1 as an ApoE receptor rather than showing that APP and LRP1 mediate the claimed neuronal–glial modulation of microglia. No page numbers are available in our copy. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Trem2 interacts with Apoe to regulate phagocytosis, survival, and inflammatory responses of microglia.

    “Trem2, expressed on microglia, interacts with Apoe to regulate phagocytosis, survival, and inflammatory responses of microglia [Yeh et al., 2016; Lin & Holtzman 2024].”

    From Cell signaling pathways discovery from multi-modal data (2025) · cites this paper as Lin & Holtzman 2024

    The References section names a TREM2–APOE pathway affecting microglial phenotype, and the ‘ApoE and tau pathology’ section reports that removing astrocytic APOE4 reduced microglial synaptic phagocytosis. Our copy does not establish that TREM2 interacts with ApoE to regulate microglial survival or the full set of functions claimed; it also does not connect TREM2 specifically to the reported phagocytosis result. No page numbers were available in our copy. (LLM, conf=0.79)

    Experimental — accuracy not yet measured
  • The Apoe-Trem2 axis plays a significant role in modulating microglial responses to Aβ and other neuroinflammatory signals.

    “The Apoe-Trem2 axis plays a significant role in modulating microglial responses to Aβ and other neuroinflammatory signals.”

    From Cell signaling pathways discovery from multi-modal data (2025) · cites this paper as Lin & Holtzman 2024

    The sections on amyloid-β pathology and AD-related innate immunity describe ApoE-dependent changes in microglial responses to Aβ and tau. The paper cites a study of the TREM2–APOE pathway when discussing microglial states, but its own discussion does not explicitly establish that the combined axis modulates responses to Aβ and other neuroinflammatory signals. (LLM, conf=0.78)

    Experimental — accuracy not yet measured
  • Apoe influences Aβ aggregation and deposition by affecting App processing and Aβ clearance.

    “Apoe influences Aβ aggregation and deposition by affecting App processing and Aβ clearance [Lin & Holtzman 2024].”

    From Cell signaling pathways discovery from multi-modal data (2025) · cites this paper as Lin & Holtzman 2024

    The “ApoE and amyloid-β pathology” section says ApoE affects Aβ plaque deposition, likely through Aβ fibrillogenesis and clearance. It does not say ApoE does so by affecting APP processing; references to APP mouse models do not establish that mechanism. (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

Research works printed but not linked: 2

  1. [77]Holtzman DM, Fagan AM, Mackey B, Apolipoprotein E facilitates neuritic and cerebrovascular plaque formation in an Alzheimer's disease model. Ann Neurol. 2000; 47(6): 739– 747. 10852539
  2. [111]Chemparathy A, Guen YL, Chen S, APOE loss-of-function variants: Compatible with longevity and associated with resistance to Alzheimer's Disease pathology. medRxiv. 2023. PMC10994769 38301647

Cited by

Sorted by citations

Authors
Lin, P. B., & Holtzman, D. M.
Affiliations
Washington University in St. Louis (US)
Corresponding author
Holtzman, David M.
Venue
Immunological Reviews
Publisher
Wiley
Published
2024-10
Volume
327
Issue
1
Pages
43-52
ISSN
  • 0105-2896 (ISSN-L)
  • 1600-065X
OpenAlex
W4403734490
Cited by
19
References
115
Citations by year
2026: 15 · 2025: 4
FWCI
1.08
Type
journal article
Language
en
Open access
Locations
  • Immunological Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
Funders
  • Cure Alzheimer's Fund
  • Tau Consortium
  • JPB Foundation
  • National Institute on Aging (1U19AG069701)
  • National Institute of Neurological Disorders and Stroke (RF1NS090934)
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
apolipoprotein E, Alzheimer's disease, innate immune response, amyloid-beta deposition, microglial activation, astrocyte activation, T cell regulation, genetic risk, pathogenesis
MeSH terms
Alzheimer Disease, Animals, Apolipoproteins E, Astrocytes, Humans, Immunity, Innate, T-Lymphocytes, Amyloid beta-Peptides, Microglia, Genetic Predisposition to Disease

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