Establishment of a Dual-Vector System for Gene Delivery Utilizing Prototype Foamy Virusopen access
- Authors
- Cho, Soo-Yeon; Lee, Yoon Jae; Jung, Seong-Mook; Son, Young Min; Shin, Cha-Gyun; Kim, Eui Tae; Kim, Kyoung-Dong
- Issue Date
- Apr-2024
- Publisher
- 한국미생물·생명공학회
- Keywords
- codon-optimized Env; Foamy viral vector; gene therapy; platform study
- Citation
- Journal of microbiology and biotechnology, v.34, no.4, pp 804 - 811
- Pages
- 8
- Journal Title
- Journal of microbiology and biotechnology
- Volume
- 34
- Number
- 4
- Start Page
- 804
- End Page
- 811
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/73783
- DOI
- 10.4014/jmb.2312.12026
- ISSN
- 1017-7825
1738-8872
- Abstract
- Foamy viruses (FVs) are generally recognized as non-pathogenic, often causing asymptomatic or mild symptoms in infections. Leveraging these unique characteristics, FV vectors hold significant promise for applications in gene therapy. This study introduces a novel platform technology using a pseudo-virus with single-round infectivity. In contrast to previous vector approaches, we developed a technique employing only two vectors, pcHFV lacking Env and pCMV-Env, to introduce the desired genes into target cells. Our investigation demonstrated the efficacy of the prototype foamy virus (PFV) dual-vector system in producing viruses and delivering transgenes into host cells. To optimize viral production, we incorporated the codon-optimized Env (optEnv) gene in pCMV-Env and the Woodchuck Hepatitis Virus Posttranscriptional Regulatory Element (WPRE) at the 3' end of the transgene in the transfer vector. Consequently, the use of optEnv led to a significant enhancement in transgene expression in host cells. Additionally, the WPRE exhibited an enhancing effect. Furthermore, the introduced EGFP transgene was present in host cells for a month. In an effort to expand transgene capacity, we further streamlined the viral vector, anticipating the delivery of approximately 4.3 kbp of genes through our PFV dual-vector system. This study underscores the potential of PFVs as an alternative to lentiviruses or other retroviruses in the realm of gene therapy.
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