Evidence map›Paper›PMID 34512509›Full record

ArticleFrontiers in neurology2021

Toward Development of Neuron Specific Transduction After Systemic Delivery of Viral Vectors.

Dylan J Finneran, Ikenna P Njoku, Diego Flores-Pazarin, Meghana R Ranabothu, Kevin R Nash, David Morgan, Marcia N Gordon

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

31 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Excitatory and inhibitory networks diverge following early blindness.Cerebral cortex (New York, N.Y. : 1991) · 2026
    Article
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  4. Challenging the more-is-better dogma: A precision-optimized AAV gene therapy for SMA.Molecular therapy : the journal of the American Society of Gene Therapy · 2026
    Article
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  7. Safety considerations of gene-based therapies for Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Developing a minimally invasive gene therapy for multiple sclerosis.Molecular therapy. Methods & clinical development · 2025
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. In vivo selection in non-human primates identifies AAV capsids for on-target CSF delivery to spinal cord.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    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

7 authors at 2 institutions in 1 country.

Dylan J FinneranTranslational Neuroscience, College of Human Medicine, Michigan State University, Grand Rapids, MI, United States.
Ikenna P NjokuTranslational Neuroscience, College of Human Medicine, Michigan State University, Grand Rapids, MI, United States.
Diego Flores-PazarinTranslational Neuroscience, College of Human Medicine, Michigan State University, Grand Rapids, MI, United States.
Meghana R RanabothuTranslational Neuroscience, College of Human Medicine, Michigan State University, Grand Rapids, MI, United States.
Kevin R NashDepartment of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.
David MorganTranslational Neuroscience, College of Human Medicine, Michigan State University, Grand Rapids, MI, United States.
Marcia N GordonTranslational Neuroscience, College of Human Medicine, Michigan State University, Grand Rapids, MI, United States.
Michigan State University · USUniversity of South Florida · US

Funding

Influence of systemic immune inflammation upon the tauopathy phenotype in mouse modelsR01AG051500 · NIA · UNIVERSITY OF SOUTH FLORIDA · PI MORGAN, DAVID · 2016 to 2020
$3.5M
Geroscience approaches to mitigate tauopathy in aged mouse brainR01AG062217 · NIA · MICHIGAN STATE UNIVERSITY · PI GORDON, MARCIA N · 2018 to 2022
$3.0M
NIA NIH HHS R01 AG051500NIA NIH HHS R01 AG062217
6 · The paper itself

Abstract

Widespread transduction of the CNS with a single, non-invasive systemic injection of adeno-associated virus is now possible due to the creation of blood-brain barrier-permeable capsids. However, as these capsids are mutants of AAV9, they do not have specific neuronal tropism. Therefore, it is necessary to use genetic tools to restrict expression of the transgene to neuronal tissues. Here we compare the strength and specificity of two neuron-specific promoters, human synapsin 1 and mouse calmodulin/calcium dependent kinase II, to the ubiquitous CAG promoter. Administration of a high titer of virus is necessary for widespread CNS transduction. We observed the neuron-specific promoters drive comparable overall expression in the brain to the CAG promoter. Furthermore, the neuron-specific promoters confer significantly less transgene expression in peripheral tissues compared with the CAG promoter. Future experiments will utilize these delivery platforms to over-express the Alzheimer-associated pathological proteins amyloid-beta and tau to create mouse models without transgenesis.

Indexed as

AAVadeno-associated viral vectorsCaMKIIα promoterintravenous deliverySyn1 promoter

Identifiers

PMID34512509
PMCPMC8426581
OpenAlexW3197616757

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.