Cited by 746

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Co-expression of multiple transgenes in mouse CNS: a comparison of strategies

Jankowsky, Joanna L, Slunt, Hilda H, Ratovitski, Tamara, Jenkins, Nancy A, Copeland, Neal G, Borchelt, David R·2001·Biomolecular Engineering

Abstract

The introduction of two transgenes into one animal is increasingly common as transgenic experiments become more sophisticated. In this study we examine two strategies for creating double transgenic founders from a single microinjection. In the first approach, two constructs, each with its own promoter element, were coinjected into the pronucleus. In the second approach, both transgenes were cloned into one vector, separated by an internal ribosomal entry site (IRES), and placed under control of a single promoter. Both strategies save time and increase the percentage of double transgenic offspring over the standard method of mating single transgenic lines. However, despite high transgene copy numbers, the bicistronic lines did not show robust expression of either protein. Copy number and protein expression correlated much better in the coinjected lines, with expression levels in one line approaching that observed in some of our best single transgenic controls. Thus we recommend coinjection of individual plasmids for the generation of multiply transgenic founders.

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Crossref · 10.1016/s1389-0344(01)00067-3

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  • The APPswe/PS1dE9 model co-expresses a chimeric mouse/human APP695 harboring the Swedish K670M/N671L mutations and human PS1 with the exon-9 deletion mutation.

    “The AD mouse model used in this study (APPswe/PS1dE9-Line 85) co-expresses a chimeric mouse/human APP695 harboring the Swedish K670M/N671L mutations (Mo/HuAPPswe) and human PS1with the exon-9 deletion mutation (PS1dE9).”

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Metadata

Authors
Jankowsky, J. L., Slunt, H. H., Ratovitski, T., Jenkins, N. A., Copeland, N. G., & Borchelt, D. R.
Venue
Biomolecular Engineering
Publisher
Elsevier BV
Published
2001-06
Volume
17
Issue
6
Pages
157-165
ISSN
1389-0344
Cited by
746
References
1
Language
en

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