Evidence map›Paper›PMID 35637286›Full record

ArticleGene therapy2023

Assessment of AAV9 distribution and transduction in rats after administration through Intrastriatal, Intracisterna magna and Lumbar Intrathecal routes.

Jayanth Chandran, Ekram Ahmed Chowdhury, Michael Perkinton, Tanguy Jamier, Daniel Sutton, Shengjia Wu, Claire Dobson, Dhaval K Shah, Iain Chessell, Guy M L Meno-Tetang

Abstract read
PubMed Publisher
In one paragraph

Article in Gene therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 14 citations in OpenAlex.

  1. QSP model for AAV-mediated antibody delivery in rat brain.Journal of pharmacokinetics and pharmacodynamics · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Current trends in gene therapy to treat inherited disorders of the brain.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  7. Adeno-Associated Viral Vectors in the Treatment of Epilepsy.International journal of molecular sciences · 2024
    Review
  8. Article
  9. Article
  10. Gene therapy for neurotransmitter-related disorders.Journal of inherited metabolic disease · 2024
    Review
  11. Review
  12. Engineered EVs designed to target diseases of the CNS.Journal of controlled release : official journal of the Controlled Release Society · 2023
    Review
  13. Review
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 2 institutions in 5 countries.

Jayanth Chandran *Discovery Sciences, Biopharmaceuticals R&D, AstraZeneca, Cambridge, UK.
Ekram Ahmed Chowdhury *Department of Pharmaceutical Sciences, The State University of New York at Buffalo, Buffalo, NY, USA.
Michael PerkintonNeuroscience, Biopharmaceuticals R&D, AstraZeneca, Cambridge, UK.
Tanguy JamierNeuroscience, Biopharmaceuticals R&D, AstraZeneca, Cambridge, UK.ORCID http://orcid.org/0000-0003-3014-3662
Daniel SuttonClinical Pharmacology and Safety Science, Biopharmaceuticals R&D, AstraZeneca, Cambridge, UK.
Shengjia WuDepartment of Pharmaceutical Sciences, The State University of New York at Buffalo, Buffalo, NY, USA.
Claire DobsonDiscovery Sciences, Biopharmaceuticals R&D, AstraZeneca, Cambridge, UK.
Dhaval K ShahDepartment of Pharmaceutical Sciences, The State University of New York at Buffalo, Buffalo, NY, USA.
Iain ChessellNeuroscience, Biopharmaceuticals R&D, AstraZeneca, Cambridge, UK.
Guy M L Meno-TetangNeuroscience, Biopharmaceuticals R&D, AstraZeneca, Cambridge, UK. guy.meno-tetang@astrazeneca.com.ORCID http://orcid.org/0000-0002-7021-9978
AstraZeneca (United Kingdom) · GBUniversity at Buffalo, State University of New York · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Challenges in obtaining efficient transduction of brain and spinal cord following systemic AAV delivery have led to alternative administration routes being used in clinical trials that directly infuse the virus into the CNS. However, data comparing different direct AAV injections into the brain remain limited making it difficult to choose optimal routes. Here we tested both AAV9-egfp and AAV9-fLuc delivery via intrastriatal (IST), intracisterna magna (ICM) and lumbar intrathecal (LIT) routes in adult rats and assessed vector distribution and transduction in brain, spinal cord and peripheral tissues. We find that IST infusion leads to robust transgene expression in the striatum, thalamus and cortex with lower peripheral tissue transduction and anti-AAV9 capsid titers compared to ICM or LIT. ICM delivery provided strong GFP and luciferase expression across more brain regions than the other routes and similar expression in the spinal cord to LIT injections, which itself largely failed to transduce the rat brain. Our data highlight the strengths and weaknesses of each direct CNS delivery route which will help with future clinical targeting.

Indexed as

Gene Transfer TechniquesSpinal CordAnimalsBrainDependovirusGenetic VectorsRatsTransduction, GeneticTransgenes

Identifiers

PMID35637286
OpenAlexW4281902761

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.