Evidence map›Paper›PMID 26253732›Full record

ArticleHuman molecular genetics2015

Anti-Aβ single-chain variable fragment antibodies exert synergistic neuroprotective activities in Drosophila models of Alzheimer's disease.

Pedro Fernandez-Funez, Yan Zhang, Jonatan Sanchez-Garcia, Lorena de Mena, Swati Khare, Todd E Golde, Yona Levites, Diego E Rincon-Limas

Open access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
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  3. Review
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  5. Review
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  7. Article
  8. Article
  9. Phenotypic differences betweenAnimal cells and systems · 2017
    Article
  10. Holdase activity of secreted Hsp70 masks amyloid-β42 neurotoxicity in Drosophila.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  11. 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

8 authors at 2 institutions in 1 country.

Pedro Fernandez-FunezDepartment of Neurology, McKnight Brain Institute, Department of Neuroscience and Center for Translational Research in Neurodegenerative Disease and Genetics Institute, University of Florida, Gainesville, FL 32611, USA pedro.fernandez@neurology.ufl.edu diego.rincon@neurology.ufl.edu.
Yan ZhangDepartment of Neurology, McKnight Brain Institute.
Jonatan Sanchez-GarciaDepartment of Neurology, McKnight Brain Institute.
Lorena de MenaDepartment of Neurology, McKnight Brain Institute.
Swati KhareDepartment of Neurology, McKnight Brain Institute.
Todd E GoldeDepartment of Neurology, McKnight Brain Institute, Department of Neuroscience and Center for Translational Research in Neurodegenerative Disease and.
Yona LevitesDepartment of Neuroscience and Center for Translational Research in Neurodegenerative Disease and.
Diego E Rincon-LimasDepartment of Neurology, McKnight Brain Institute, Department of Neuroscience and Center for Translational Research in Neurodegenerative Disease and Genetics Institute, University of Florida, Gainesville, FL 32611, USA pedro.fernandez@neurology.ufl.edu diego.rincon@neurology.ufl.edu.
Allen Institute for Brain Science · USUniversity of Florida · US

Funding

Immune-Mediated Mechanisms Underlying CNS Abeta ClearanceR01AG018454 · NIA · UNIVERSITY OF FLORIDA · PI GOLDE, TODD E · 2000 to 2018
$5.3M
Mechanisms of Prion MisfoldingDP2OD002721 · OD · UNIVERSITY OF TEXAS MED BR GALVESTON · PI FERNANDEZ-FUNEZ, PEDRO · 2007 to 2010
$2.2M
NIA NIH HHS AG18454NIH HHS DP2 OD002721NIH HHS DP2 OD002721-01
6 · The paper itself

Abstract

Both active and passive immunotherapy protocols decrease insoluble amyloid-ß42 (Aß42) peptide in animal models, suggesting potential therapeutic applications against the main pathological trigger in Alzheimer's disease (AD). However, recent clinical trials have reported no significant benefits from humanized anti-Aß42 antibodies. Engineered single-chain variable fragment antibodies (scFv) are much smaller and can easily penetrate the brain, but identifying the most effective scFvs in murine AD models is slow and costly. We show here that scFvs against the N- and C-terminus of Aß42 (scFv9 and scFV42.2, respectively) that decrease insoluble Aß42 in CRND mice are neuroprotective in Drosophila models of Aß42 and amyloid precursor protein neurotoxicity. Both scFv9 and scFv42.2 suppress eye toxicity, reduce cell death in brain neurons, protect the structural integrity of dendritic terminals in brain neurons and delay locomotor dysfunction. Additionally, we show for the first time that co-expression of both anti-Aß scFvs display synergistic neuroprotective activities, suggesting that combined therapies targeting distinct Aß42 epitopes can be more effective than targeting a single epitope. Overall, we demonstrate the feasibility of using Drosophila as a first step for characterizing neuroprotective anti-Aß scFvs in vivo and identifying scFv combinations with synergistic neuroprotective activities.

Indexed as

Alzheimer DiseaseDisease Models, AnimalDrosophilaAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAnimalsAnimals, Genetically ModifiedBrainCompound Eye, ArthropodDrug Evaluation, PreclinicalDrug SynergismFemaleMaleMotor ActivityNeuronsPeptide FragmentsAmyloid beta-Peptidesamyloid beta-protein (1-42)Amyloid beta-Protein PrecursorPeptide FragmentsRecombinant ProteinsSingle-Chain Antibodies

Identifiers

PMID26253732
PMCPMC4599669
OpenAlexW1875600228

What OpenQuestion holds

Textmetadata
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.