Evidence map›Paper›PMID 21709371›Full record

ArticleJournal of Alzheimer's disease : JAD2011

Anti-Amyloid-β Single-Chain Antibody Brain Delivery Via AAV Reduces Amyloid Load But May Increase Cerebral Hemorrhages in an Alzheimer's Disease Mouse Model.

Jinghong Kou, HongDuck Kim, Abhinandan Pattanayak, Min Song, Jeong-Eun Lim, Hiroaki Taguchi, Sudhir Paul, John R Cirrito, Selvarangan Ponnazhagan, Ken-ichiro Fukuchi

Open access · greenAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

21 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Engineering humoral immunity as prophylaxis or therapy.Current opinion in immunology · 2015
    Review
  16. A human monoclonal IgG that binds aβ assemblies and diverse amyloids exhibits anti-amyloid activities in vitro and in vivo.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  17. Article
  18. Article
  19. Article
  20. Article
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

10 authors at 7 institutions in 2 countries.

Jinghong KouDepartment of Cancer Biology and Pharmacology, University of Illinois College of Medicine, Peoria, IL 61656, USA.
HongDuck Kim
Abhinandan Pattanayak
Min Song
Jeong-Eun Lim
Hiroaki Taguchi
Sudhir Paul
John R Cirrito
Selvarangan Ponnazhagan
Ken-ichiro Fukuchi
Illinois College · USThe University of Texas Health Science Center at Houston · USUniversity of Illinois Chicago · USHope Center for Neurological Disorders · USNew York Medical College · USUniversity of Alabama at Birmingham · USUniversity of Illinois Urbana-Champaign · US

Funding

Innate immunity in Alzheimer's disease: Role of toll-like receptor signalingR01AG030399 · NIA · UNIVERSITY OF ILLINOIS AT CHICAGO · PI FUKUCHI, KEN-ICHIRO · 2009 to 2013
$1.5M
Therapeutic delivery of single chain antibody for Alzheimer's diseaseR21EY018478 · NEI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI FUKUCHI, KEN-ICHIRO · 2007 to 2008
$427k
Catalytic and non-catalytic Ig gene delivery for Alzheimer's diseaseR21AG037814 · NIA · UNIVERSITY OF ILLINOIS AT CHICAGO · PI FUKUCHI, KEN-ICHIRO · 2010 to 2011
$359k
AAV-mediated muscle-directed gene transfer for Alzheimer's diseaseR21AG029818 · NIA · UNIVERSITY OF ILLINOIS AT CHICAGO · PI FUKUCHI, KEN-ICHIRO · 2007 to 2008
$358k
NEI NIH HHS EY018478NEI NIH HHS R21 EY018478NIA NIH HHS AG029818NIA NIH HHS AG030399NIA NIH HHS AG037814NIA NIH HHS R01 AG030399NIA NIH HHS R21 AG029818NIA NIH HHS R21 AG037814
6 · The paper itself

Abstract

Accumulation of amyloid-β protein (Aβ) in the brain is thought to be a causal event in Alzheimer's disease (AD). Immunotherapy targeting Aβ holds great promise for reducing Aβ in the brain. Here, we evaluated the efficacy and safety of anti-Aβ single-chain antibody (scFv59) delivery via recombinant adeno-associated virus (rAAV) on reducing Aβ deposits in an AD mouse model (TgAβPPswe/PS1dE9). First, delivery of scFv59 to the brain was optimized by injecting rAAV serotypes 1, 2, and 5 into the right lateral ventricle. Symmetrical high expression of scFv59 was found throughout the hippocampus and partly in the neocortex in both hemispheres via rAAV1 or rAAV5, while scFv59 expression via rAAV2 was mostly limited to one hemisphere. rAAV1, however, induced apoptosis and microglial activation but rAAV5 did not. Therefore, rAAV5 was selected for therapeutic scFv59 delivery in TgAβPPswe/PS1dE9 mice. rAAV5 was similarly injected into the ventricle of 10-month-old TgAβPPswe/PS1dE9 mice and 5 months later its efficacy and safety were evaluated. Immunoreactive Aβ deposits reduced in the hippocampus. Aβ42 levels in cerebrospinal fluid (CSF) tended to increase and the Aβ40 : 42 ratio decreased in CSF, suggesting that Aβ42 was relocated from the parenchyma to CSF. Hemorrhages associated with a focal increase in blood vessel amyloid were found in the brain. While immunotherapy has great potential for clearing cerebral Aβ, caution for cerebrovascular effects should be exercised when rAAV-mediated anti-Aβ immunotherapy is applied.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloidogenic ProteinsAnalysis of VarianceAnimalsAntigens, CDApoptosisBrainCell Line, TransformedCerebral HemorrhageDependovirusDisease Models, AnimalDrug Delivery SystemsEnzyme-Linked Immunosorbent AssayGlial Fibrillary Acidic ProteinAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloidogenic ProteinsAntigens, CDGlial Fibrillary Acidic ProteinPresenilin-1PSEN1 protein, humanSingle-Chain Antibodies

Identifiers

PMID21709371
PMCPMC3560395
OpenAlexW1768014335

What OpenQuestion holds

Textmetadata
LicenceTDM
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.