Cited by 84Virus-based gene therapy researchHIV Research and TreatmentImmunotherapy and Immune Responses

Successful Immunization with a Single Injection of Non-integrating Lentiviral Vector

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Negri, Donatella RM, Michelini, Zuleika, Baroncelli, Silvia, Spada, Massimo, Vendetti, Silvia, Buffa, Viviana, Bona, Roberta, Leone, Pasqualina +2 more·2007·Molecular Therapy

Abstract

We evaluated the ability of an integrase (IN)-defective self-inactivating lentiviral vector (sinLV) for the delivery of human immunodeficiency virus-1 (HIV-1) envelope sequences in mice to elicit specific immune responses. BALB/c mice were immunized with a single intramuscular injection of the IN-defective sinLV expressing the codon optimized HIV-1(JR-FL) gp120 sequence, and results were compared with those for the IN-competent counterpart. The IN-defective sinLV elicited specific and long-lasting immune responses, as evaluated up to 90 days from the immunization by enzyme-linked immunosorbent spot (ELISPOT) and intracellular staining (ICS) for interferon-gamma (IFN-gamma) assays in both splenocytes and bone marrow (BM) cells, chromium release assay in splenocytes, and antibody detection in sera, without integration of the vector into the host genome. These data provide evidence that a single administration of an IN-defective sinLV elicits a significant immune response in the absence of vector integration and may be a safe and useful strategy for vaccine development.

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Crossref · 10.1038/sj.mt.6300241

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  • HIV-1, HPV, and HCV were tested with cancer vaccines targeting antigen-presenting cells.

    “Human immunodeficiency virus (HIV-1), human papillomavirus (HPV), and hepatitis C virus (HCV) were tested with cancer vaccines targeting the antigen-presenting cells [23].”

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Authors
Negri, D. R., Michelini, Z., Baroncelli, S., Spada, M., Vendetti, S., Buffa, V., Bona, R., Leone, P., Klotman, M. E., & Cara, A.
Affiliations
  • Istituto Superiore di Sanità (IT)
  • St George's, University of London (GB)
  • Icahn School of Medicine at Mount Sinai (US)
Corresponding author
Cara, Andrea
Venue
Molecular Therapy
Publisher
Elsevier BV
Published
2007-09
Volume
15
Issue
9
Pages
1716-1723
ISSN
1525-0016 (ISSN-L)
OpenAlex
W2029727380
Cited by
84
References
49
Citations by year
2023: 4 · 2022: 3 · 2021: 3 · 2020: 8 · 2019: 3 · 2018: 2 · 2017: 2 · 2016: 2 · 2015: 6 · 2014: 4 · 2013: 5 · 2012: 8
FWCI
5.20
Type
journal article
Language
en
Open access
Locations
  • Molecular Therapy (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
National Institute of Allergy and Infectious Diseases (R21AI066940)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
self-inactivating lentivirus, HIV-1 envelope, gp120, HIV-1 vaccine, single-dose vaccination, intramuscular injection, humoral immune response, cell-mediated immunity, interferon-gamma, vector integration, vaccine safety
MeSH terms
Animals, Antibody Formation, Bone Marrow Cells, Defective Viruses, Enzyme-Linked Immunosorbent Assay, Genetic Vectors, Humans, Immunity, Cellular, Immunization, Injections, Intramuscular, Time Factors, HIV Envelope Protein gp120, Lentivirus, Integrases, Mice

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