Cited by 808Virus-based gene therapy researchVirology and Viral DiseasesRNA Interference and Gene Delivery

Worldwide epidemiology of neutralizing antibodies to adeno-associated viruses

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Calcedo, Roberto, Vandenberghe, Luk H., Gao, Guangping, Lin, Jianping, Wilson, James M.·2009·The Journal of Infectious Diseases

Abstract

Recombinant adeno-associated viruses (AAVs) have unique gene-transfer properties that speak to their potential as carriers for gene therapy or vaccine applications. However, the presence of neutralizing antibodies to AAV as a result of previous exposure can significantly limit effective gene transfer. In this study, we obtained 888 human serum samples from healthy volunteers in 10 countries around the world. Samples were assayed for neutralizing antibodies to AAV1, AAV2, AAV7, and AAV8, as well as to a novel, structurally distinct AAV vector, rh32.33, in an in vitro transduction inhibition assay. Our data revealed that neutralizing antibodies to AAV2 were the most prevalent antibodies in all regions, followed by antibodies to AAV1. The seroprevalences of antibodies to AAV7 and to AAV8 were lower than that for antibodies to AAV1, and neutralization of AAVrh32.33 was only rarely detected. Our data also indicate a strong linkage of seroreactivity between apparently distinct serotypes that has not been predicted previously in animal models.

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  1. [9]9. Erles K, Sebokova P, Schlehofer JR. Update on the prevalence of serum antibodies (IgG and IgM) to adeno-associated virus (AAV). J Med Virol 1999; 59:406-11. [PubMed: 10502275]

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Authors
Calcedo, R., Vandenberghe, L. H., Gao, G., Lin, J., & Wilson, J. M.
Affiliations
University of Pennsylvania (US)
Corresponding author
Wilson, James M.
Venue
The Journal of Infectious Diseases
Published
2009-02
Volume
199
Issue
3
Pages
381-390
ISSN
  • 0022-1899 (ISSN-L)
  • 1537-6613
OpenAlex
W2170205772
Cited by
808
References
23
Citations by year
2026: 48 · 2025: 56 · 2024: 80 · 2023: 57 · 2022: 63 · 2021: 62 · 2020: 49 · 2019: 49 · 2018: 45 · 2017: 39 · 2016: 33 · 2015: 41 · 2014: 33 · 2013: 41 · 2012: 37
FWCI
21.15
Type
journal article
Language
en
Open access
Locations
  • The Journal of Infectious Diseases (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • International AIDS Vaccine Initiative
  • GlaxoSmithKline
  • University of Pennsylvania
  • Vlaamse regering
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (P01HL059407, P01HL051746)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK047757)
  • Institute of Genetics
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Health Sciences › Medicine › Epidemiology › Virology and Viral Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
adeno-associated virus, neutralizing antibodies, seroprevalence, AAV1, AAV2, AAV8, gene therapy vectors, human serum samples
MeSH terms
Dependovirus, Africa, Antibodies, Viral, Australia, Europe, Humans, Parvoviridae Infections, Phylogeny, United States, Global Health, Seroepidemiologic Studies

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