Improved transgene integration into the Chinese hamster ovary cell genome using the Cre-loxP system

Takanori Inao, Yoshinori Kawabe, Takuro Yamashiro, Yujiro Kameyama, Xue Wang, Akira Ito, Masamichi Kamihira

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

Genetic engineering of cellular genomes has provided useful tools for biomedical and pharmaceutical studies such as the generation of transgenic animals and producer cells of biopharmaceutical proteins. Gene integration using site-specific recombinases enables precise transgene insertion into predetermined genomic sites if the target site sequence is introduced into a specific chromosomal locus. We previously developed an accumulative site-specific gene integration system (AGIS) using Cre and mutated loxPs. The system enabled the repeated integration of multiple transgenes into a predetermined locus of a genome. In this study, we explored applicable mutated loxP pairs for AGIS to improve the integration efficiency. The integration efficiencies of 52 mutated loxP sequences, including novel sequences, were measured using an invitro evaluation system. Among mutated loxP pairs that exhibited a high integration efficiency, the applicability of the selected pairs to AGIS was confirmed for transgene integration into the Chinese hamster ovary cell genome. The newly found mutated loxP pairs should be useful for Cre-mediated integration of transgenes and AGIS.

本文言語英語
ページ(範囲)99-106
ページ数8
ジャーナルJournal of Bioscience and Bioengineering
120
1
DOI
出版ステータス出版済み - 7 1 2015

All Science Journal Classification (ASJC) codes

  • バイオテクノロジー
  • バイオエンジニアリング
  • 応用微生物学とバイオテクノロジー

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