Harnessing a high cargo-capacity transposon for genetic applications in vertebrates.

Viruses and transposons are efficient tools for permanently delivering foreign DNA into vertebrate genomes but exhibit diminished activity when cargo exceeds 8 kilobases (kb). This size restriction limits their molecular genetic and biotechnological utility, such as numerous therapeutically relevant...

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Main Authors: Darius Balciunas, Kirk J Wangensteen, Andrew Wilber, Jason Bell, Aron Geurts, Sridhar Sivasubbu, Xin Wang, Perry B Hackett, David A Largaespada, R Scott McIvor, Stephen C Ekker
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2006-11-01
Series:PLoS Genetics
Online Access:http://europepmc.org/articles/PMC1635535?pdf=render
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author Darius Balciunas
Kirk J Wangensteen
Andrew Wilber
Jason Bell
Aron Geurts
Sridhar Sivasubbu
Xin Wang
Perry B Hackett
David A Largaespada
R Scott McIvor
Stephen C Ekker
author_facet Darius Balciunas
Kirk J Wangensteen
Andrew Wilber
Jason Bell
Aron Geurts
Sridhar Sivasubbu
Xin Wang
Perry B Hackett
David A Largaespada
R Scott McIvor
Stephen C Ekker
author_sort Darius Balciunas
collection DOAJ
description Viruses and transposons are efficient tools for permanently delivering foreign DNA into vertebrate genomes but exhibit diminished activity when cargo exceeds 8 kilobases (kb). This size restriction limits their molecular genetic and biotechnological utility, such as numerous therapeutically relevant genes that exceed 8 kb in size. Furthermore, a greater payload capacity vector would accommodate more sophisticated cis cargo designs to modulate the expression and mutagenic risk of these molecular therapeutics. We show that the Tol2 transposon can efficiently integrate DNA sequences larger than 10 kb into human cells. We characterize minimal sequences necessary for transposition (miniTol2) in vivo in zebrafish and in vitro in human cells. Both the 8.5-kb Tol2 transposon and 5.8-kb miniTol2 engineered elements readily function to revert the deficiency of fumarylacetoacetate hydrolase in an animal model of hereditary tyrosinemia type 1. Together, Tol2 provides a novel nonviral vector for the delivery of large genetic payloads for gene therapy and other transgenic applications.
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spelling doaj.art-75fbcc48e7b2480297232ff3a0109db02022-12-22T03:51:48ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042006-11-01211e16910.1371/journal.pgen.0020169Harnessing a high cargo-capacity transposon for genetic applications in vertebrates.Darius BalciunasKirk J WangensteenAndrew WilberJason BellAron GeurtsSridhar SivasubbuXin WangPerry B HackettDavid A LargaespadaR Scott McIvorStephen C EkkerViruses and transposons are efficient tools for permanently delivering foreign DNA into vertebrate genomes but exhibit diminished activity when cargo exceeds 8 kilobases (kb). This size restriction limits their molecular genetic and biotechnological utility, such as numerous therapeutically relevant genes that exceed 8 kb in size. Furthermore, a greater payload capacity vector would accommodate more sophisticated cis cargo designs to modulate the expression and mutagenic risk of these molecular therapeutics. We show that the Tol2 transposon can efficiently integrate DNA sequences larger than 10 kb into human cells. We characterize minimal sequences necessary for transposition (miniTol2) in vivo in zebrafish and in vitro in human cells. Both the 8.5-kb Tol2 transposon and 5.8-kb miniTol2 engineered elements readily function to revert the deficiency of fumarylacetoacetate hydrolase in an animal model of hereditary tyrosinemia type 1. Together, Tol2 provides a novel nonviral vector for the delivery of large genetic payloads for gene therapy and other transgenic applications.http://europepmc.org/articles/PMC1635535?pdf=render
spellingShingle Darius Balciunas
Kirk J Wangensteen
Andrew Wilber
Jason Bell
Aron Geurts
Sridhar Sivasubbu
Xin Wang
Perry B Hackett
David A Largaespada
R Scott McIvor
Stephen C Ekker
Harnessing a high cargo-capacity transposon for genetic applications in vertebrates.
PLoS Genetics
title Harnessing a high cargo-capacity transposon for genetic applications in vertebrates.
title_full Harnessing a high cargo-capacity transposon for genetic applications in vertebrates.
title_fullStr Harnessing a high cargo-capacity transposon for genetic applications in vertebrates.
title_full_unstemmed Harnessing a high cargo-capacity transposon for genetic applications in vertebrates.
title_short Harnessing a high cargo-capacity transposon for genetic applications in vertebrates.
title_sort harnessing a high cargo capacity transposon for genetic applications in vertebrates
url http://europepmc.org/articles/PMC1635535?pdf=render
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