Evidence map›Paper›PMID 33550655›Full record

ArticleAnnals of neurology2021

Apolipoprotein E4 Reduction with Antisense Oligonucleotides Decreases Neurodegeneration in a Tauopathy Model.

Alexandra Litvinchuk, Tien-Phat V Huynh, Yang Shi, Rosemary J Jackson, Mary B Finn, Melissa Manis, Caroline M Francis, Ainsley C Tran, Patrick M Sullivan, Jason D Ulrich and 3 more

Open access · greenAbstract read
In one paragraph

Article in Annals of neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
6.4field-weighted citation impact, top 2% 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

57 citing papers in PubMed, 76 citations in OpenAlex.

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  14. Health effects of loss of function variants in gene targets for Alzheimer's disease prevention.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
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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

13 authors at 5 institutions in 1 country.

Alexandra LitvinchukDepartment of Neurology, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO.ORCID 0000-0002-0591-7948
Tien-Phat V HuynhDepartment of Neurology, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO.ORCID 0000-0001-8375-7938
Yang ShiDepartment of Neurology, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO.ORCID 0000-0002-5441-0529
Rosemary J JacksonDepartment of Neurology, Harvard Medical School, MassGeneral Institute for Neurodegenerative Disease, Massachusetts General Hospital, Charlestown, MA.ORCID 0000-0002-5478-5611
Mary B FinnDepartment of Neurology, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO.
Melissa ManisDepartment of Neurology, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO.
Caroline M FrancisDepartment of Neurology, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO.
Ainsley C TranDepartment of Neurology, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO.
Patrick M SullivanDepartment of Medicine, Duke University Medical Center, Durham Veterans Health Administration Medical Center's Geriatric Research, Education and Clinical Center, Durham, NC.ORCID 0000-0001-8402-2634
Jason D UlrichDepartment of Neurology, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO.ORCID 0000-0002-4743-926X
Bradley T HymanDepartment of Neurology, Harvard Medical School, MassGeneral Institute for Neurodegenerative Disease, Massachusetts General Hospital, Charlestown, MA.ORCID 0000-0002-7959-9401
Tracy ColeIonis Pharmaceuticals, Inc., Carlsbad, CA.
David M HoltzmanDepartment of Neurology, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO.ORCID 0000-0002-3400-0856
Hope Center for Neurological Disorders · USHarvard University · USIonis Pharmaceuticals (United States) · USVeterans Health Administration · USWashington University in St. Louis · US

Funding

Research Education ComponentP30AG062421 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI Christine S Ritchie · 2019 to 2026
$36.5M
Effect of APOE on CNS Neurons: Role of LRPRF1NS090934 · NINDS · WASHINGTON UNIVERSITY · PI HOLTZMAN, DAVID M. · 2020 to 2025
$6.5M
Novel Strategies and Mechanisms to Target APOE and Alzheimer's DiseaseRF1AG047644 · NIA · WASHINGTON UNIVERSITY · PI HOLTZMAN, DAVID M., HYMAN, BRADLEY T. · 2019 to 2019
$3.8M
Novel Strategies and Mechanisms to Target APOE and Alzheimer's DiseaseR01AG047644 · NIA · WASHINGTON UNIVERSITY · PI HOLTZMAN, DAVID M. · 2014 to 2018
$2.8M
NIA NIH HHS P30 AG062421NIA NIH HHS R01 AG047644NIA NIH HHS RF1 AG047644NIH HHS AG047644NIH HHS NS090932NINDS NIH HHS RF1 NS090934
6 · The paper itself

Abstract

objectiveApolipoprotein E (ApoE) genotype is the strongest genetic risk factor for late-onset Alzheimer's disease, with the ε4 allele increasing risk in a dose-dependent fashion. In addition to ApoE4 playing a crucial role in amyloid-β deposition, recent evidence suggests that it also plays an important role in tau pathology and tau-mediated neurodegeneration. It is not known, however, whether therapeutic reduction of ApoE4 would exert protective effects on tau-mediated neurodegeneration.

methodsHerein, we used antisense oligonucleotides (ASOs) against human APOE to reduce ApoE4 levels in the P301S/ApoE4 mouse model of tauopathy. We treated P301S/ApoE4 mice with ApoE or control ASOs via intracerebroventricular injection at 6 and 7.5 months of age and performed brain pathological assessments at 9 months of age.

resultsOur results indicate that treatment with ApoE ASOs reduced ApoE4 protein levels by ~50%, significantly protected against tau pathology and associated neurodegeneration, decreased neuroinflammation, and preserved synaptic density. These data were also corroborated by a significant reduction in levels of neurofilament light chain (NfL) protein in plasma of ASO-treated mice.

interpretationWe conclude that reducing ApoE4 levels should be explored further as a therapeutic approach for APOE4 carriers with tauopathy including Alzheimer's disease. ANN NEUROL 2021;89:952-966.

Indexed as

AnimalsApolipoprotein E4CholesterolDentate GyrusEncephalitisGene Knock-In TechniquesInjections, IntraventricularMiceMice, Inbred C57BLNeurodegenerative DiseasesNeurofilament ProteinsOligonucleotides, AntisenseSynapsesTauopathiestau ProteinsApolipoprotein E4CholesterolMapt protein, mouseNeurofilament ProteinsOligonucleotides, Antisensetau Proteins

Identifiers

PMID33550655
PMCPMC8260038
OpenAlexW3127668400

What OpenQuestion holds

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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.