Abstract:
:Gene targeting constitutes a new step in the development of gene therapy for inherited diseases. Although previous studies have shown the feasibility of editing fibroblasts from Fanconi anemia (FA) patients, here we aimed at conducting therapeutic gene editing in clinically relevant cells, such as hematopoietic stem cells (HSCs). In our first experiments, we showed that zinc finger nuclease (ZFN)-mediated insertion of a non-therapeutic EGFP-reporter donor in the AAVS1 "safe harbor" locus of FA-A lymphoblastic cell lines (LCLs), indicating that FANCA is not essential for the editing of human cells. When the same approach was conducted with therapeutic FANCA donors, an efficient phenotypic correction of FA-A LCLs was obtained. Using primary cord blood CD34+ cells from healthy donors, gene targeting was confirmed not only in in vitro cultured cells, but also in hematopoietic precursors responsible for the repopulation of primary and secondary immunodeficient mice. Moreover, when similar experiments were conducted with mobilized peripheral blood CD34+ cells from FA-A patients, we could demonstrate for the first time that gene targeting in primary hematopoietic precursors from FA patients is feasible and compatible with the phenotypic correction of these clinically relevant cells.
journal_name
EMBO Mol Medjournal_title
EMBO molecular medicineauthors
Diez B,Genovese P,Roman-Rodriguez FJ,Alvarez L,Schiroli G,Ugalde L,Rodriguez-Perales S,Sevilla J,Diaz de Heredia C,Holmes MC,Lombardo A,Naldini L,Bueren JA,Rio Pdoi
10.15252/emmm.201707540subject
Has Abstractpub_date
2017-11-01 00:00:00pages
1574-1588issue
11eissn
1757-4676issn
1757-4684pii
emmm.201707540journal_volume
9pub_type
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