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Lentiviruses in gene therapy clinical research

Gene Therapy volume 9, pages 1730–1734 (2002)Cite this article

Abstract

Gene therapy vectors derived from lentiviruses offer many potentially unique advantages over more conventional retroviral gene delivery systems. Principal amongst these is their ability to provide long-term and stable gene expression and to infect non-dividing cells, such as neurons. However, the use of lentiviral-based vectors in the clinic also raises specific safety and ethical issues. Concerns include the possible generation of replication competent lentiviruses during vector production, mobilisation of the vector by endogenous retroviruses in the genomes of patients, insertional mutagenesis leading to cancer, germline alteration resulting in trans-generational effects and dissemination of new viruses from gene therapy patients. Investigators proposing to conduct this type of research should take due account of the potential risks for interaction of lentiviral gene therapy vectors with other retroviral elements in human subjects, such as Human Immunodeficiency Virus. In addition, strict quality control for replication competent lentiviruses and suitable measurements of lentiviral infectious particle number will be required before these types of viral vector can proceed to the clinic.

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  1. Department of Health, Gene Therapy Advisory Committee, London, UK

    J B Connolly

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  1. J B Connolly
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Connolly, J. Lentiviruses in gene therapy clinical research. Gene Ther 9, 1730–1734 (2002). https://doi.org/10.1038/sj.gt.3301893

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  • DOI: https://doi.org/10.1038/sj.gt.3301893

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