Current Pharmaceutical Biotechnology

Davide Prosperi
Department of Biotechnology and Bioscience
University of Milan Bicocca


SV40 Pseudovirions as Highly Efficient Vectors for Gene Transfer and their Potential Application in Cancer Therapy

Author(s): Chava Kimchi-Sarfaty, Michael M. Gottesman.


Among viral and non-viral gene delivery systems, SV40-based vectors show great promise in the cancer gene therapy field. SV40 vectors very efficiently deliver genes such as anti-viral agents, DNA vaccine, genes for chemoprotection (such as ABC transporters genes), suicide genes and antiangiogenic genes. The recombinant SV40 vectors can infect a wide variety of cells-dividing cells as well as non-cycling ones. Most of the SV40-based vectors can incorporate larger transgenes than the capacity of the SV40 wild-type, which is 5.2 kb; Moreover, in vitro packaged vectors demonstrate efficient delivery of plasmids with a molecular weight of up to 17.7 kb. SV40-based vectors carry some SV40 viral sequences, but the SV40 in vitro-packaged vectors are free of any SV40 wild-type viral DNA sequences. These vectors are prepared with nuclear extracts of SF9 insect cells containing the main viral capsid protein of the SV40 wild-type virus, VP1. This review summarizes different strategies in which SV40 vectors are used to deliver genes in vitro, to living mice, and to tumors growing in nude mice.

Keywords: sv40 vectors, sv40 in vitro packaging, high efficiency, chemoprotection, anti-hiv gene therapy, pseudomonas exotoxin, pigment epithelium derived factor

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Article Details

Year: 2004
Page: [451 - 458]
Pages: 8
DOI: 10.2174/1389201043376670
Price: $58