Cited by 562Virus-based gene therapy researchImmunodeficiency and Autoimmune DisordersCAR-T cell therapy research

Gene therapy for Wiskott-Aldrich syndrome–long-term efficacy and genotoxicity

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Braun, Christian Jörg, Boztug, Kaan, Paruzynski, Anna, Witzel, Maximilian, Schwarzer, Adrian, Rothe, Michael, Modlich, Ute, Beier, Rita +22 more·2014·Science Translational Medicine

Abstract

Wiskott-Aldrich syndrome (WAS) is characterized by microthrombocytopenia, immunodeficiency, autoimmunity, and susceptibility to malignancies. In our hematopoietic stem cell gene therapy (GT) trial using a γ-retroviral vector, 9 of 10 patients showed sustained engraftment and correction of WAS protein (WASP) expression in lymphoid and myeloid cells and platelets. GT resulted in partial or complete resolution of immunodeficiency, autoimmunity, and bleeding diathesis. Analysis of retroviral insertion sites revealed >140,000 unambiguous integration sites and a polyclonal pattern of hematopoiesis in all patients early after GT. Seven patients developed acute leukemia [one acute myeloid leukemia (AML), four T cell acute lymphoblastic leukemia (T-ALL), and two primary T-ALL with secondary AML associated with a dominant clone with vector integration at the LMO2 (six T-ALL), MDS1 (two AML), or MN1 (one AML) locus]. Cytogenetic analysis revealed additional genetic alterations such as chromosomal translocations. This study shows that hematopoietic stem cell GT for WAS is feasible and effective, but the use of γ-retroviral vectors is associated with a substantial risk of leukemogenesis.

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Crossref · 10.1126/scitranslmed.3007280

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  • Lentiviral vectors are considered safer than gamma-retroviral vectors in terms of their semi-random integration patterns, as gene integration does not preferentially occur in start regions of active genes.

    “Lentiviral vectors are considered safer than gamma-retroviral vectors in terms of their semi-random integration patterns, as gene integration does not preferentially occur in start regions of active genes (93-95).”

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Authors
Braun, C. J., Boztug, K., Paruzynski, A., Witzel, M., Schwarzer, A., Rothe, M., Modlich, U., Beier, R., Göhring, G., Steinemann, D., Fronza, R., Ball, C. R., Haemmerle, R., Naundorf, S., Kühlcke, K., Rose, M., Fraser, C., Mathias, L., Ferrari, R., Abboud, M. R., Al-Herz, W., Kondratenko, I., Maródi, L., Glimm, H., Schlegelberger, B., Schambach, A., Albert, M. H., Schmidt, M., von Kalle, C., & Klein, C.
Affiliations
  • Dr. von Hauner Children’s Hospital, Ludwig Maximilians University Munich, 80337 Munich, Germany.
  • Department of Pediatric Hematology/Oncology, Hannover Medical School, 30625 Hannover, Germany.
  • German Cancer Research Center (DE)
  • Ludwig-Maximilians-Universität München (DE)
  • Medizinische Hochschule Hannover (DE)
  • EUFETS AG, 55743 Idar-Oberstein, Germany.
  • Johannes Wesling Klinikum Minden (DE)
  • Children's Health Queensland Hospital and Health Service (AU)
  • Loma Linda University Medical Center (US)
  • Children’s Hospital Kemperhof, 56073 Koblenz, Germany.
  • American University of Beirut Medical Center (LB)
  • Department of Pediatrics, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait.
  • Department of Clinical Immunology, Russian Clinical Children’s Hospital, 117513 Moscow, Russia.
  • University of Debrecen (HU)
  • Department of Translational Oncology, National Center for Tumor Diseases and German Cancer Research Center, 69120 Heidelberg, Germany.
Corresponding author
  • Paruzynski, Anna
  • Witzel, Maximilian
  • Schmidt, Manfred
  • Klein, Christoph
Venue
Science Translational Medicine
Published
2014-03-12
Volume
6
Issue
227
Pages
227ra33-227ra33
ISSN
  • 1946-6234 (ISSN-L)
  • 1946-6242
OpenAlex
W2130174662
Cited by
562
References
4
Citations by year
2026: 22 · 2025: 23 · 2024: 38 · 2023: 39 · 2022: 49 · 2021: 48 · 2020: 53 · 2019: 46 · 2018: 45 · 2017: 69 · 2016: 50 · 2015: 42 · 2014: 36 · 2013: 1
FWCI
43.13
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • Science Translational Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • University of Debrecen Electronic Archive (University of Debrecen) (submittedVersion, other-oa)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Life Sciences › Immunology and Microbiology › Immunology › Immunodeficiency and Autoimmune Disorders
  • Health Sciences › Medicine › Oncology › CAR-T cell therapy research
Keywords
Wiskott-Aldrich syndrome, hematopoietic stem cell gene therapy, gammaretroviral vectors, WASP protein, genotoxicity, leukemogenesis, T-cell acute lymphoblastic leukemia, acute myeloid leukemia, LMO2, MN1, chromosomal translocation, immunodeficiency, autoimmunity, platelet count
MeSH terms
Adolescent, Animals, Blood Platelets, Child, Child, Preschool, Clone Cells, Colitis, Hematopoietic Stem Cells, Humans, Leukocytes, Mononuclear, Lymphocytes, Mutagens, Thrombocytopenia, Transplantation, Autologous, Wiskott-Aldrich Syndrome, Genetic Therapy, Mice, Inbred NOD, Treatment Outcome, Hematopoietic Stem Cell Transplantation, Disease Progression, Wiskott-Aldrich Syndrome Protein, Mice, Precursor T-Cell Lymphoblastic Leukemia-Lymphoma

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