Evidence map›Paper›PMID 41835941›Full record

ReviewFrontiers in neuroscience2026

The delivery challenge of adeno-associated virus vector-based gene therapies for neurological diseases.

Alissa Pak, Darcy Wear, Nareh Tahmasian, Jung Yeon Min, Davina Premraj, Rachel Gibbs, Kiah Spencer, Susanna Fang, Thomas Zerbes, Medha Krishnan and 2 more

Abstract readReview
In one paragraph

Review in Frontiers in neuroscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Review
  2. 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

12 authors.

Alissa PakDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Darcy WearDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Nareh TahmasianDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Jung Yeon MinDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Davina PremrajDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Rachel GibbsDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Kiah SpencerDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Susanna FangDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Thomas ZerbesDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Medha KrishnanDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Zahra NasserDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
Gerold Schmitt-UlmsDepartment of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is great anticipation that gene therapies can offer solutions to many neurological diseases. Already, much is known about therapeutic targets and how they would need to be manipulated to mitigate disease. For such gene therapies to move to the clinic, potent CNS delivery vehicles are needed. One line of investigation focuses on adeno-associated viruses (AAV) to address this need. In particular, blood-brain barrier (BBB)-penetrant AAV capsids are of interest due to the relative ease of their intravenous administration. This review will introduce this topic and provide an update on recent developments. First, we describe the physical barriers that must be overcome for AAV-delivered gene therapies to reach target cells in the CNS. We then put a spotlight on the natural AAV9 capsid's inherent propensity to cross the BBB and key lessons learned from its use for delivering a therapeutic payload for the treatment of spinal muscular atrophy. Next, we summarize methods for engineering recombinant AAV (rAAV) capsids with improved brain penetrance, and present

Indexed as

adeno-associated virus (AAV)capsidgene therapy (GT)neurodegenerative diseasesneurological disease

Identifiers

PMID41835941
PMCPMC12979394

What OpenQuestion holds

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LicenceCC BY
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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.