Cited by 139Virus-based gene therapy researchRNA Interference and Gene DeliveryImmunotherapy and Immune Responses

Hepatocyte-targeted expression by integrase-defective lentiviral vectors induces antigen-specific tolerance in mice with low genotoxic risk

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Mátrai, Janka, Cantore, Alessio, Bartholomae, Cynthia C., Annoni, Andrea, Wang, Wei, Acosta-Sanchez, Abel, Samara-Kuko, Ermira, De Waele, Liesbeth +12 more·2011·Hepatology

Abstract

Lentiviral vectors are attractive tools for liver-directed gene therapy because of their capacity for stable gene expression and the lack of preexisting immunity in most human subjects. However, the use of integrating vectors may raise some concerns about the potential risk of insertional mutagenesis. Here we investigated liver gene transfer by integrase-defective lentiviral vectors (IDLVs) containing an inactivating mutation in the integrase (D64V). Hepatocyte-targeted expression using IDLVs resulted in the sustained and robust induction of immune tolerance to both intracellular and secreted proteins, despite the reduced transgene expression levels in comparison with their integrase-competent vector counterparts. IDLV-mediated and hepatocyte-targeted coagulation factor IX (FIX) expression prevented the induction of neutralizing antibodies to FIX even after antigen rechallenge in hemophilia B mice and accounted for relatively prolonged therapeutic FIX expression levels. Upon the delivery of intracellular model antigens, hepatocyte-targeted IDLVs induced transgene-specific regulatory T cells that contributed to the observed immune tolerance. Deep sequencing of IDLV-transduced livers showed only rare genomic integrations that had no preference for gene coding regions and occurred mostly by a mechanism inconsistent with residual integrase activity. Conclusion: IDLVs provide an attractive platform for the tolerogenic expression of intracellular or secreted proteins in the liver with a substantially reduced risk of insertional mutagenesis. (Hepatology 2011;)

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Authors
Mátrai, J., Cantore, A., Bartholomae, C. C., Annoni, A., Wang, W., Acosta-Sanchez, A., Samara-Kuko, E., De Waele, L., Ma, L., Genovese, P., Damo, M., Arens, A., Goudy, K., Nichols, T. C., von Kalle, C., L. Chuah, M. K., Roncarolo, M. G., Schmidt, M., VandenDriessche, T., & Naldini, L.
Affiliations
  • Université Libre de Bruxelles (BE)
  • Vita-Salute San Raffaele University (IT)
  • German Cancer Research Center (DE)
  • The San Raffaele Telethon Institute for Gene Therapy (IT)
  • University of North Carolina at Chapel Hill (US)
Corresponding author
  • Schmidt, Manfred
  • VandenDriessche, Thierry
  • Naldini, Luigi
Venue
Hepatology
Published
2011-05
Volume
53
Issue
5
Pages
1696-1707
ISSN
0270-9139 (ISSN-L)
OpenAlex
W2106786636
Cited by
139
References
33
Citations by year
2026: 3 · 2025: 4 · 2024: 4 · 2023: 5 · 2022: 6 · 2021: 1 · 2020: 5 · 2019: 8 · 2018: 8 · 2017: 9 · 2016: 9 · 2015: 11 · 2014: 22 · 2013: 16 · 2012: 21
FWCI
12.97
Type
journal article
Language
en
Open access
Locations
  • Hepatology (publishedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • Archivio Istituzionale della Ricerca - Università Vita-Salute San Raffaele (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • VUBIR (Vrije Universiteit Brussel) (submittedVersion)
  • UNC Libraries
Funders
  • University of Pennsylvania
  • European Commission (222878)
  • Fonds Wetenschappelijk Onderzoek
  • Vrije Universiteit Brussel
  • National Heart, Lung, and Blood Institute (R24HL063098)
Topics
  • 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
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
integrase-defective lentiviral vectors, liver-directed gene therapy, antigen-specific tolerance, insertional mutagenesis, coagulation factor IX, hemophilia B, neutralizing antibodies, regulatory T cells, transgene integration
MeSH terms
Animals, Epitopes, Cells, Cultured, DNA Damage, Female, Genetic Vectors, Humans, Immune Tolerance, Mice, Inbred BALB C, Risk, Lentivirus, Integrases, Hepatocytes, Mice

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