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Updated: Jun 19, 2026

A Protocol for the Production of Integrase-deficient Lentiviral Vectors for CRISPR/Cas9-mediated Gene Knockout in Dividing Cells
Published on: December 12, 2017
Integrase-defective lentiviral vectors: progress and applications
1Department of Pediatrics, Program in Gene Therapy, Carver College of Medicine, The University of Iowa, Iowa City, IA, USA.
Abstract:
Lentiviral vectors (LVs) offer the advantages of a large packaging capacity, broad cell tropism or specific cell-type targeting through pseudotyping, and long-term expression from integrated gene cassettes. However, transgene integration carries a risk of disrupting gene expression through insertional mutagenesis and may not be required for all applications. A non-integrating LV may be beneficial in cases in which transient gene expression is desired. Several recent publications outline the development and initial biological characterization of such vectors. Here, we discuss the potential applications and new directions for the development of integration-defective LVs.
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