Abstract:
:Viral vectors hold promise and challenges in gene therapy. Specifically, we have previously shown that baculoviral (BV) vectors have a high efficiency of gene delivery in human embryonic stem (ES) cells. Here we report the development of a complementary system to further our evaluation by utilizing the laboratory fish medaka that has ES cell lines and tools for experimental analyses in vitro and in vivo. We show that BV vectors can give rise to almost 100% of transient gene delivery in the medaka ES cell line MES1. BV-transduced MES1 cells reproducibly (at approximately 10(-5)) produce GFP-expressing colonies that, upon manual isolation, develop into stable clones during 300 days of culture. Surprisingly, BV transduction can also mediate efficient gene integration in the medaka genome, as fluorescent in situ hybridization revealed the presence of the BV-delivered gfp transgene in multiple locations in nuclei and on various chromosomes of metaphase spreads. We show that BV transduction does not compromise the genome stability and pluripotency of MES1 cells. We conclude that BV can efficiently mediate gene delivery and chromosomal integration in medaka ES cells. Therefore, medaka provides a powerful system for analyzing the potential of BV-mediated gene delivery in stem cells and gene therapy.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Yan Y,Du J,Chen T,Yi M,Li M,Wang S,Li CM,Hong Ydoi
10.1016/j.yexcr.2009.04.015subject
Has Abstractpub_date
2009-08-01 00:00:00pages
2322-31issue
13eissn
0014-4827issn
1090-2422pii
S0014-4827(09)00179-7journal_volume
315pub_type
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