Lineage- and stage-restricted lentiviral vectors for the gene therapy of chronic granulomatous disease

Autor: Sonia Verp, Didier Trono, Maciej Wiznerowicz, Elisa Laurenti, Isabelle Barde, A. Viornery, Sandra Offner, Anne Galy, Andreas Trumpp
Přispěvatelé: Immunologie moléculaire et biothérapies innovantes (IMBI), Généthon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université d'Évry-Val-d'Essonne (UEVE)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Évry-Val-d'Essonne (UEVE)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Généthon, Généthon
Rok vydání: 2011
Předmět:
Zdroj: Gene Ther
Gene Ther, 2011, 18 (11), pp.1087-97. ⟨10.1038/gt.2011.65⟩
Gene therapy
Gene Therapy
Gene Therapy, 2011, 18 (11), pp.1087-1097. ⟨10.1038/gt.2011.65⟩
ISSN: 1476-5462
0969-7128
DOI: 10.1038/gt.2011.65
Popis: International audience; Insertional mutagenesis represents a serious adverse effect of gene therapy with integrating vectors. However, although uncontrolled activation of growth-promoting genes in stem cells can predictably lead to oncological processes, this is far less likely if vector transcriptional activity can be restricted to fully differentiated cells. Diseases requiring phenotypic correction only in mature cells offer such an opportunity, provided that lineage/stage-restricted systems can be properly tailored. In this study, we followed this reasoning to design lentiviral vectors for the gene therapy of chronic granulomatous disease (CGD), an immune deficiency due a loss of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase in phagocytes, most often secondary to mutations in gp91(phox). Using self-inactivating HIV1-derived vectors as background, we first expressed enhanced green fluorescent protein (eGFP) from a minimal gp91(phox) promoter, adding various natural or synthetic transcriptional regulatory elements to foster both specificity and potency. The resulting vectors were assessed either by transplantation or by lentiviral transgenesis, searching for combinations conferring strong and specific expression into mature phagocytic cells. The most promising vector was modified to express gp91(phox) and used to treat CGD mice. High-level restoration of NADPH activity was documented in granulocytes from the treated animals. We propose that this lineage-specific lentiviral vector is a suitable candidate for the gene therapy of CGD.
Databáze: OpenAIRE