RRC ID 37020
Author Ebina H, Kanemura Y, Misawa N, Sakuma T, Kobayashi T, Yamamoto T, Koyanagi Y.
Title A high excision potential of TALENs for integrated DNA of HIV-based lentiviral vector.
Journal PLoS One
Abstract DNA-editing technology has made it possible to rewrite genetic information in living cells. Human immunodeficiency virus (HIV) provirus, an integrated form of viral complementary DNA in host chromosomes, could be a potential target for this technology. We recently reported that HIV proviral DNA could be excised from the chromosomal DNA of HIV-based lentiviral DNA-transduced T cells after multiple introductions of a clustered regularly interspaced short palindromic repeat (CRISPR)/Cas9 endonuclease system targeting HIV long terminal repeats (LTR). Here, we generated a more efficient strategy that enables the excision of HIV proviral DNA using customized transcription activator-like effector nucleases (TALENs) targeting the same HIV LTR site. A single transfection of TALEN-encoding mRNA, prepared from in vitro transcription, resulted in more than 80% of lentiviral vector DNA being successfully removed from the T cell lines. Furthermore, we developed a lentiviral vector system that takes advantage of the efficient proviral excision with TALENs and permits the simple selection of gene-transduced and excised cells in T cell lines.
Volume 10(3)
Pages e0120047
Published 2015-1-1
DOI 10.1371/journal.pone.0120047
PII PONE-D-14-49017
PMID 25781496
PMC PMC4363575
MeSH CRISPR-Cas Systems / genetics* Cell Line DNA, Viral / genetics* DNA, Viral / metabolism Genetic Vectors / genetics* Genetic Vectors / metabolism HIV-1 / genetics* HIV-1 / metabolism Humans Transduction, Genetic* Virus Integration / genetics*
IF 2.74
Times Cited 39
WOS Category BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Resource
Human and Animal Cells 293T(RCB2202)