Enhanced homology-directed repair for highly efficient gene editing in hematopoietic stem/progenitor cells.
Suk See De Ravin, Julie Brault, Ronald J Meis, Siyuan Liu, Linhong Li, Mara Pavel-Dinu, Cicera R Lazzarotto, Taylor Liu, Sherry M Koontz, Uimook Choi, Colin L Sweeney, Narda Theobald, GaHyun Lee, Aaron B Clark, Sandra S Burkett, Benjamin P Kleinstiver, Matthew H Porteus, Shengdar Tsai, Douglas B Kuhns, Gary A Dahl, Stephen Headey, Xiaolin Wu, Harry L Malech
Author Information
Suk See De Ravin: Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD. ORCID
Julie Brault: Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD. ORCID
Ronald J Meis: CELLSCRIPT, LLC, Madison, WI.
Siyuan Liu: Cancer Research Technology Program, Leidos Biomedical Research Inc., Frederick, MD.
Linhong Li: MaxCyte Inc., Gaithersburg, MD.
Mara Pavel-Dinu: Department of Pediatrics, Stanford University, School of Medicine, Stanford, CA.
Cicera R Lazzarotto: Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN.
Taylor Liu: Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD. ORCID
Sherry M Koontz: Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD.
Uimook Choi: Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD.
Colin L Sweeney: Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD. ORCID
Narda Theobald: Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD.
GaHyun Lee: Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN.
Aaron B Clark: Cancer Research Technology Program, Leidos Biomedical Research Inc., Frederick, MD.
Sandra S Burkett: Molecular Cytogenetic Core Facility, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD. ORCID
Benjamin P Kleinstiver: Center for Genomic Medicine and Department of Pathology, Massachusetts General Hospital, Boston, MA. ORCID
Matthew H Porteus: Department of Pediatrics, Stanford University, School of Medicine, Stanford, CA. ORCID
Shengdar Tsai: Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN.
Douglas B Kuhns: Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD.
Gary A Dahl: CELLSCRIPT, LLC, Madison, WI.
Stephen Headey: School of Science, RMIT University, Melbourne, VIC, Australia. ORCID
Xiaolin Wu: Cancer Research Technology Program, Leidos Biomedical Research Inc., Frederick, MD. ORCID
Harry L Malech: Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD. ORCID
Lentivector gene therapy for X-linked chronic granulomatous disease (X-CGD) has proven to be a viable approach, but random vector integration and subnormal protein production from exogenous promoters in transduced cells remain concerning for long-term safety and efficacy. A previous genome editing-based approach using Streptococcus pyogenes Cas9 mRNA and an oligodeoxynucleotide donor to repair genetic mutations showed the capability to restore physiological protein expression but lacked sufficient efficiency in quiescent CD34+ hematopoietic cells for clinical translation. Here, we report that transient inhibition of p53-binding protein 1 (53BP1) significantly increased (2.3-fold) long-term homology-directed repair to achieve highly efficient (80% gp91phox+ cells compared with healthy donor control subjects) long-term correction of X-CGD CD34+ cells.