Evidence map›Paper›PMID 22735381›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2012

Gene transfer to the CNS is efficacious in immune-primed mice harboring physiologically relevant titers of anti-AAV antibodies.

Christopher M Treleaven, Thomas J Tamsett, Jie Bu, Jonathan A Fidler, S Pablo Sardi, Gregory D Hurlbut, Lisa A Woodworth, Seng H Cheng, Marco A Passini, Lamya S Shihabuddin and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

25 citing papers in PubMed, 30 citations in OpenAlex.

  1. Trial
  2. Review
  3. Use of CD19-targeted immune modulation to eradicate AAV-neutralizing antibodies.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Current and Future Treatments for Lysosomal Storage Disorders.Current treatment options in neurology · 2017
    Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Recent advances in gene therapy for lysosomal storage disorders.The application of clinical genetics · 2015
    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

11 authors at 1 institution in 1 country.

Christopher M TreleavenGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Thomas J TamsettGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Jie BuGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Jonathan A FidlerGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
S Pablo SardiGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Gregory D HurlbutGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Lisa A WoodworthGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Seng H ChengGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Marco A PassiniGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Lamya S ShihabuddinGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
James C DodgeGenzyme, a Sanofi Company, Framingham, Massachusetts, USA. Electronic address: jim.dodge@genzyme.com.
SynZyme Technologies (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Central nervous system (CNS)-directed gene therapy with recombinant adeno-associated virus (AAV) vectors has been used effectively to slow disease course in mouse models of several neurodegenerative diseases. However, these vectors were typically tested in mice without prior exposure to the virus, an immunological scenario unlikely to be duplicated in human patients. Here, we examined the impact of pre-existing immunity on AAV-mediated gene delivery to the CNS of normal and diseased mice. Antibody levels in brain tissue were determined to be 0.6% of the levels found in systemic circulation. As expected, transgene expression in brains of mice with relatively high serum antibody titers was reduced by 59-95%. However, transduction activity was unaffected in mice that harbored more clinically relevant antibody levels. Moreover, we also showed that markers of neuroinflammation (GFAP, Iba1, and CD3) and histopathology (hematoxylin and eosin (H&E)) were not enhanced in immune-primed mice (regardless of pre-existing antibody levels). Importantly, we also demonstrated in a mouse model of Niemann Pick Type A (NPA) disease that pre-existing immunity did not preclude either gene transfer to the CNS or alleviation of disease-associated neuropathology. These findings support the continued development of AAV-based therapies for the treatment of neurological disorders.

Indexed as

AdultAnimalsAntibodies, ViralBiomarkersBrainDependovirusDisease Models, AnimalGenetic TherapyGenetic VectorsGene Transfer TechniquesHumansImmunizationMiceNiemann-Pick Disease, Type ATransgenesAntibodies, ViralBiomarkers

Identifiers

PMID22735381
PMCPMC3437584
OpenAlexW1991743429

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.