Cited by 101Virus-based gene therapy researchMonoclonal and Polyclonal Antibodies ResearchSARS-CoV-2 and COVID-19 Research

Diverse IgG subclass responses to adeno‐associated virus infection and vector administration

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Murphy, Samuel L., Li, Hojun, Mingozzi, Federico, Sabatino, Denise E., Hui, Daniel J., Edmonson, Shyrie A., High, Katherine A.·2009·Journal of Medical Virology

Abstract

Humoral immune responses occur following exposure to Adeno‐associated virus (AAV) or AAV vectors. Many studies characterized antibody responses to AAV, but human IgG subclass responses to AAV have not been previously described. In this study, IgG subclass responses were examined in serum samples of normal human subjects exposed to wild‐type AAV, subjects injected intramuscularly with AAV vectors and subjects injected intravascularly with AAV vectors. A diversity of IgG subclass responses to AAV capsid were found in different subjects. IgG1 was found to be the dominant response. IgG2, IgG3, and IgG4 responses were also observed in most normal human subjects; IgG2 and IgG3 each represented the major fraction of total anti‐AAV capsid IgG in a subset of normal donors. Subjects exposed to AAV vectors showed IgG responses to AAV capsid of all four IgG subclasses. IgG responses to AAV capsid in clinical trial subjects were inversely proportional to the level of pre‐existing anti‐AAV antibody and independent of the vector dose. The high levels of anti‐AAV capsid IgG1 can mask differences in IgG2, IgG3, and IgG4 responses that were observed in this study. Analysis of IgG subclass distribution of anti‐AAV capsid antibodies indicates a complex, non‐uniform pattern of responses to this viral antigen. J. Med. Virol. 81:65–74, 2009. © 2008 Wiley‐Liss, Inc.

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Authors
Murphy, S. L., Li, H., Mingozzi, F., Sabatino, D. E., Hui, D. J., Edmonson, S. A., & High, K. A.
Affiliations
Children's Hospital of Philadelphia (US)
Corresponding author
High, Katherine A.
Venue
Journal of Medical Virology
Publisher
Wiley
Published
2008-11-21
Volume
81
Issue
1
Pages
65-74
ISSN
  • 0146-6615 (ISSN-L)
  • 1096-9071
OpenAlex
W1577558588
Cited by
101
References
36
Citations by year
2026: 3 · 2025: 5 · 2024: 6 · 2023: 9 · 2022: 7 · 2021: 5 · 2020: 12 · 2019: 5 · 2018: 5 · 2017: 2 · 2016: 2 · 2015: 4 · 2013: 6 · 2012: 8
FWCI
3.99
Type
journal article
Language
en
Open access
Locations
  • Journal of Medical Virology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Heart, Lung, and Blood Institute (P01HL064190, P01HL078810)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
Keywords
adeno-associated virus, IgG subclasses, humoral immune response, adeno-associated virus vectors, intramuscular injection, intravascular injection
MeSH terms
Dependovirus, Adolescent, Adult, Aged, Antibodies, Viral, Capsid, Genetic Vectors, Humans, Immunoglobulin G, Immunoglobulin M, Middle Aged, Neutralization Tests, Parvoviridae Infections

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