Cited by 48Hemophilia Treatment and ResearchVirus-based gene therapy researchRNA Interference and Gene Delivery

AAV-based neonatal gene therapy for hemophilia A: long-term correction and avoidance of immune responses in mice

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Hu, C, Lipshutz, G S·2012·Gene Therapy

Abstract

Hemophilia A gene therapy has been hampered by immune responses to vector-associated antigens and by neutralizing antibodies or inhibitors against the factor VIII (FVIII) protein; these 'inhibitors' more commonly affect hemophilia A patients than those with hemophilia B. A gene replacement strategy beginning in the neonatal period may avoid the development of these immune responses and lead to prolonged expression with correction of phenotype, thereby avoiding long-term consequences. A serotype rh10 adeno-associated virus (AAV) was developed splitting the FVIII coding sequence into heavy and light chains with the chicken β-actin promoter/CMV enhancer for dual recombinant adeno-associated viral vector delivery. Virions of each FVIII chain were co-injected intravenously into mice on the second day of life. Mice express sustained levels of FVIII antigen ≥5% up to 22 months of life without development of antibodies against FVIII. Phenotypic correction was manifest in all AAV-FVIII-treated mice as demonstrated by functional assay and reduction in bleeding time. This study demonstrates the use of AAV in a gene replacement strategy in neonatal mice that establishes both long-term phenotypic correction of hemophilia A and lack of antibody development against FVIII in this disease model where AAV is administered shortly after birth. These studies support the consideration of gene replacement therapy for diseases that are diagnosed in utero or in the early neonatal period.

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  1. [49]Sabatino DE Lange AM Altynova ES Sarkar R Zhou S Merricks EP Efficacy and safety of long-term prophylaxis in severe hemophilia A dogs following liver gene therapy using AAV vectors Mol Ther 2011 19 3 442 9 21081906 PMC3048175
  2. [58]Evans MM Williamson WG Irvine WJ The appearance of immunological competence at an early age in New Zealand black mice Clin Exp Immunol 1968 3 5 375 83 5301937 PMC1578908
  3. [60]Kay HE Doe J Hockley A Response of human foetal thymocytes to phytohaemagglutinin (PHA) Immunology 1970 18 3 393 6 5442218 PMC1455570

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Authors
Hu, C., & Lipshutz, G. S.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Lipshutz, G S
Venue
Gene Therapy
Published
2012-01-12
Volume
19
Issue
12
Pages
1166-1176
ISSN
  • 0969-7128 (ISSN-L)
  • 1476-5462
OpenAlex
W2004480433
Cited by
48
References
69
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 2 · 2022: 4 · 2021: 1 · 2020: 2 · 2019: 5 · 2018: 4 · 2017: 4 · 2016: 3 · 2015: 5 · 2014: 4 · 2013: 4 · 2012: 3
FWCI
3.25
Type
journal article
Language
en
Open access
Locations
  • Gene Therapy (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Neurological Disorders and Stroke (R01NS071076)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (3KO8HD057555-03S1, K08HD057555)
Topics
  • Health Sciences › Medicine › Hematology › Hemophilia Treatment and Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
hemophilia A, neonatal gene therapy, factor VIII, gene replacement, factor VIII inhibitors, neutralizing antibodies, bleeding time, mouse model
MeSH terms
Dependovirus, Animals, Animals, Newborn, Antibodies, Viral, Factor VIII, Genetic Vectors, Hemophilia A, Genetic Therapy, Mice, Antibodies, Neutralizing

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