Efficient gene delivery into mammalian cells mediated by a recombinant baculovirus containing a whispovirus ie1 promoter, a novel shuttle promoter between insect cells and mammalian cells

文献类型： 外文期刊

第一作者： Gao, Hui

作者： Gao, Hui;Wang, Yu;Li, Na;Peng, Wu-Ping;Sun, Yuan;Tong, Guang-Zhi;Qiu, Hua-Ji

作者机构：

关键词： recombinant baculoviruses;gene delivery;shuttle promoter;BacMan virus;whispovirus ie1 promoter

期刊名称：JOURNAL OF BIOTECHNOLOGY （ 影响因子：3.307； 五年影响因子：3.778 ）

ISSN： 0168-1656

年卷期： 2007 年 131 卷 2 期

页码：

收录情况： SCI

摘要： Recombinant baculoviruses have emerged as a new gene delivery vehicle for mammalian cells. Thus, a shuttle promoter that mediates gene expression in both insect and mammalian cells will facilitate the development of a baculovirus vector-based mammalian cell gene delivery vehicle. This study described the generation of three recombinant baculoviruses with an EGFP reporter gene under the control of the white spot syndrome virus (WSSV) ie1 promoter, or either of two control promoters, the baculovirus early-to-late (ETL) promoter and polyhedrin promoter. The resulting recombinant baculoviruses were used to infect insect Sf9 cells and transduce several mammalian cell lines to test the expression of EGFP. We found that the WSSV ie1 promoter displayed a strong promoter activity in both insect and mammalian cells, and showed a stronger promoter activity than the ETL promoter in some mammalian cell lines. The activity of the WSSV ie1 promoter, but not the ETL promoter, can be enhanced by sodium butyrate, a histone deacetylase inhibitor. A transient plasmid transfection assay indicated that the WSSV ie1 promoter activity in mammalian cells is independent of baculovirus gene expression, differing from the ETL promoter, which was shown to be baculovirus-dependent. This study demonstrates, for the first time, that the WSSV ie1 promoter can function as a baculovirus-independent shuttle promoter between insect cells and mammalian cells. This novel shuttle promoter will facilitate the application of baculovirus-based vectors in gene expression, gene therapy, and non-replicative vector vaccines. (C) 2007 Elsevier B.V. All rights reserved.

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