Efficient in-vitro transfer of a 60-Mb mammalian artificial chromosome into murine and hamster cells using cationic lipids and dendrimers.
2001
Non-integrating artificial chromosomes represent a potentially promising approach to ex-vivo and in-vivo gene therapy applications. These large vectors require an efficient means for delivery to target cells. We have evaluated a panel of twenty-one commercially available transfection agents for their ability to mediate the in-vitro transfer of a 60-Mb murine artificial chromosome consisting of mouse major satellite DNA and a payload including a marker gene (hygromycin B) and a reporter gene (lacZ). A rapid screening procedure utilizing iododeoxyuridine-incorporated artificial chromosomes facilitated the assessment of different transfection conditions. The results were confirmed by cytogenetic analysis of positively transfected clones.
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