Evidence map›Paper›PMID 22574943›Full record

ArticleHuman gene therapy2012

Safety study of adeno-associated virus serotype 2-mediated human acid sphingomyelinase expression in the nonhuman primate brain.

Ernesto A Salegio, Lluis Samaranch, Russell W Jenkins, Christopher J Clarke, Clementine Lamarre, Janine Beyer, Adrian P Kells, John Bringas, Waldy San Sebastian, R Mark Richardson and 4 more

Open access · greenAbstract read
In one paragraph

Article in Human gene therapy, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

19 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. State-of-the-art therapies for fragile X syndrome.Developmental medicine and child neurology · 2024
    Review
  5. Article
  6. Review
  7. CERTAlzheimer's research & therapy · 2021
    Article
  8. Review
  9. Fetal Gene Therapy Using a Single Injection of Recombinant AAV9 Rescued SMA Phenotype in Mice.Molecular therapy : the journal of the American Society of Gene Therapy · 2019
    Article
  10. Article
  11. Article
  12. Article
  13. Gene Therapy for the Treatment of Neurological Disorders: Metabolic Disorders.Methods in molecular biology (Clifton, N.J.) · 2016
    Review
  14. Article
  15. Gene therapy for the nervous system: challenges and new strategies.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2014
    Review
  16. Article
  17. Article
  18. Article
  19. 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

14 authors at 2 institutions in 1 country.

Ernesto A SalegioDepartment of Neurosurgery, University of California San Francisco, San Francisco, CA 94103, USA.
Lluis Samaranch
Russell W Jenkins
Christopher J Clarke
Clementine Lamarre
Janine Beyer
Adrian P Kells
John Bringas
Waldy San Sebastian
R Mark Richardson
Kate H Rosenbluth
Yusuf A Hannun
Krystof S Bankiewicz
John Forsayeth
University of California, San Francisco · USMedical University of South Carolina · US

Funding

Sphingolipids in Cancer Therapy and AngiogenesisP01CA097132 · NCI · STATE UNIVERSITY NEW YORK STONY BROOK · PI YUSUF AWNI HANNUN · 2003 to 2026
$30.8M
Preclinical development of a gene therapy for Niemann-Pick disease, type AR01NS056107 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BANKIEWICZ, KRYSTOF S · 2007 to 2011
$2.0M
NCI NIH HHS P01-CA097132NINDS NIH HHS R01-NS056107-01
6 · The paper itself

Abstract

Niemann-Pick disease is a lysosomal storage disorder resulting from inherited deficiency in acid sphingomyelinase (ASM). Use of adeno-associated virus serotype 2 (AAV2) to deliver human acid sphingomyelinase (hASM) is currently being explored as a means to treat the devastating neurological features of NPD, which are refractory to traditional enzyme replacement therapy. In this study, we evaluated the long-term efficacy and safety of AAV2-hASM after direct infusion into the CNS of nonhuman primates. First, we confirmed the efficacy of AAV2-hASM in naive rats, which exhibited increased ASM expression and enzyme activity after infusion, without evidence of local or systemic toxicity. Next, the model was adapted to naive nonhuman primates (NHPs) with various doses of AAV2-hASM or saline delivered into the brainstem and both thalami. Strikingly, NHPs that received a high dose of AAV2-hASM displayed significant motor deficits that were not seen in low-dose animals in both the short-term (3-month) and long-term (9-month) treatment groups. In treated NHPs, ASM expression and activity were elevated with associated alterations in the sphingolipidomic profile in brain regions transduced with AAV2-hASM. Initial histological analysis indicated marked inflammatory reactions, and immunohistochemical analysis confirmed a robust inflammatory response. Importantly, pronounced upregulation of the chemokine CCL5, a target of ASM-mediated inflammatory signaling, was detected that correlated with the inflammatory response, providing a possible mechanism for hASM-associated toxicity. This study defines dose-dependent and dose-independent toxicities of AAV2-hASM in the naive primate brain, and reveals potential challenges in the design of a clinical trial.

Indexed as

AnimalsBrainChemokine CCL5DependovirusGenetic TherapyGenetic VectorsHumansNiemann-Pick DiseasesRatsRats, Sprague-DawleySphingomyelin PhosphodiesteraseUp-RegulationChemokine CCL5Sphingomyelin Phosphodiesterase

Identifiers

PMID22574943
PMCPMC3413900
OpenAlexW2071752330

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.