Design and potential of non-integrating lentiviral vectors
Open accessAbstract
Lentiviral vectors have demonstrated promising results in clinical trials that target cells of the hematopoietic system. For these applications, they are the vectors of choice since they provide stable integration into cells that will undergo extensive expansion in vivo. Unfortunately, integration can have unintended consequences including dysregulated cell growth. Therefore, lentiviral vectors that do not integrate are predicted to have a safer profile compared to integrating vectors and should be considered for applications where transient expression is required or for sustained episomal expression such as in quiescent cells. In this review, the system for generating lentiviral vectors will be described and used to illustrate how alterations in the viral integrase or vector Long Terminal Repeats have been used to generate vectors that lack the ability to integrate. In addition to their safety advantages, these non-integrating lentiviral vectors can be used when persistent expression would have adverse consequences. Vectors are currently in development for use in vaccinations, cancer therapy, site-directed gene insertions, gene disruption strategies, and cell reprogramming. Preclinical work will be described that illustrates the potential of this unique vector system in human gene therapy.
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NILVs can be designed by introducing mutations in the lentiviral vector integrase or the Δatt site.
“Alternatively, non-integrating LV (NILVs) can be designed by introducing mutations in the LV integrase or Δatt (LTR integrase attachment) site [8,9].”
From Non-Integrating Lentiviral Vectors in Clinical Applications: A Glance Through (2022) · cites this paper as [9]
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“Alternatively, non-integrating LV (NILVs) can be designed by introducing mutations in the LV integrase or ∆att (LTR integrase attachment) site [8,9].”
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- Authors
- Shaw, A., & Cornetta, K.
- Affiliations
- Indiana University School of Medicine (US)
- Corresponding author
- Cornetta, Kenneth
- ORCID
- Cornetta, Kenneth
- Venue
- Biomedicines
- Publisher
- MDPI AG
- Published
- 2014-01-27
- Volume
- 2
- Issue
- 1
- Pages
- 14-35
- ISSN
- 2227-9059 (ISSN-L)
- PMC
- PMC5423482
- OpenAlex
- W2076286186
- Cited by
- 60
- References
- 23
- Citations by year
- 2026: 4 · 2025: 7 · 2024: 7 · 2023: 3 · 2022: 8 · 2021: 8 · 2020: 5 · 2019: 2 · 2018: 3 · 2017: 5 · 2016: 5 · 2015: 2 · 2014: 1
- FWCI
- 0.57
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Biomedicines (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- IUScholarWorks (Indiana University) (submittedVersion, cc-by-nc-nd)
- PMC
- Funders
- National Center for Research Resources (P40RR024928)
- 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 › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
- Keywords
- lentiviral vectors, long terminal repeat, transient expression, gene therapy safety, hematopoietic cells, cancer gene therapy, vaccination, gene disruption, cellular reprogramming
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