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Biasco L, Pellin D, Scala S, Dionisio F, Basso-Ricci L, Leonardelli L, Scaramuzza S, Baricordi C, Ferrua F, Cicalese MP, Giannelli S, Neduva V, Dow DJ, Schmidt M, Von Kalle C, Roncarolo MG, Ciceri F, Vicard P, Wit E, Di Serio C, Naldini L, Aiuti A. In Vivo Tracking of Human Hematopoiesis Reveals Patterns of Clonal Dynamics during Early and Steady-State Reconstitution Phases. Cell Stem Cell 2016; 19:107-19. [PMID: 27237736 PMCID: PMC4942697 DOI: 10.1016/j.stem.2016.04.016] [Citation(s) in RCA: 166] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 02/11/2016] [Accepted: 04/28/2016] [Indexed: 12/31/2022]
Abstract
Hematopoietic stem/progenitor cells (HSPCs) are capable of supporting the lifelong production of blood cells exerting a wide spectrum of functions. Lentiviral vector HSPC gene therapy generates a human hematopoietic system stably marked at the clonal level by vector integration sites (ISs). Using IS analysis, we longitudinally tracked >89,000 clones from 15 distinct bone marrow and peripheral blood lineages purified up to 4 years after transplant in four Wiskott-Aldrich syndrome patients treated with HSPC gene therapy. We measured at the clonal level repopulating waves, populations' sizes and dynamics, activity of distinct HSPC subtypes, contribution of various progenitor classes during the early and late post-transplant phases, and hierarchical relationships among lineages. We discovered that in-vitro-manipulated HSPCs retain the ability to return to latency after transplant and can be physiologically reactivated, sustaining a stable hematopoietic output. This study constitutes in vivo comprehensive tracking in humans of hematopoietic clonal dynamics during the early and late post-transplant phases. Hematopoietic reconstitution occurs in two distinct clonal waves A few thousand HSPC clones stably sustain multilineage blood cell production Steady-state hematopoiesis after transplant is maintained by both HSCs and MPPs Natural killer clones have closer relationships to myeloid cells than to lymphoid cells
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Affiliation(s)
- Luca Biasco
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy.
| | | | - Serena Scala
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy
| | - Francesca Dionisio
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy
| | - Luca Basso-Ricci
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy
| | - Lorena Leonardelli
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy
| | - Samantha Scaramuzza
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy
| | - Cristina Baricordi
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy
| | - Francesca Ferrua
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy; Pediatric Immunohematology and Bone Marrow Transplant Unit, San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Maria Pia Cicalese
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy; Pediatric Immunohematology and Bone Marrow Transplant Unit, San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Stefania Giannelli
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy
| | - Victor Neduva
- Target Sciences, GlaxoSmithKline R&D, Stevenage, Herts SG1 2NY, UK
| | - David J Dow
- Target Sciences, GlaxoSmithKline R&D, Stevenage, Herts SG1 2NY, UK
| | - Manfred Schmidt
- National Center for Tumor Diseases (NCT), German Cancer Research Center (DKFZ), 69121 Heidelberg, Germany
| | - Christof Von Kalle
- National Center for Tumor Diseases (NCT), German Cancer Research Center (DKFZ), 69121 Heidelberg, Germany
| | - Maria Grazia Roncarolo
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy; Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Stanford School of Medicine, Stanford, CA 94305, USA
| | - Fabio Ciceri
- Pediatric Immunohematology and Bone Marrow Transplant Unit, San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Paola Vicard
- Department of Economy, University Roma Tre, 00154 Rome, Italy
| | - Ernst Wit
- Johann Bernoulli Institute, University of Groningen, 9700 AB Groningen, the Netherlands
| | - Clelia Di Serio
- CUSSB, Vita-Salute University, 20132 Milan, Italy; Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Luigi Naldini
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy; Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Alessandro Aiuti
- San Raffaele Telethon Institute for Gene Therapy (TIGET), 20132 Milan, Italy; Pediatric Immunohematology and Bone Marrow Transplant Unit, San Raffaele Scientific Institute, 20132 Milan, Italy; Vita-Salute San Raffaele University, 20132 Milan, Italy.
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Aiuti A, Biasco L, Scaramuzza S, Ferrua F, Cicalese MP, Baricordi C, Dionisio F, Calabria A, Giannelli S, Castiello MC, Bosticardo M, Evangelio C, Assanelli A, Casiraghi M, Di Nunzio S, Callegaro L, Benati C, Rizzardi P, Pellin D, Di Serio C, Schmidt M, Von Kalle C, Gardner J, Mehta N, Neduva V, Dow DJ, Galy A, Miniero R, Finocchi A, Metin A, Banerjee PP, Orange JS, Galimberti S, Valsecchi MG, Biffi A, Montini E, Villa A, Ciceri F, Roncarolo MG, Naldini L. Lentiviral hematopoietic stem cell gene therapy in patients with Wiskott-Aldrich syndrome. Science 2013; 341:1233151. [PMID: 23845947 PMCID: PMC4375961 DOI: 10.1126/science.1233151] [Citation(s) in RCA: 777] [Impact Index Per Article: 70.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Wiskott-Aldrich syndrome (WAS) is an inherited immunodeficiency caused by mutations in the gene encoding WASP, a protein regulating the cytoskeleton. Hematopoietic stem/progenitor cell (HSPC) transplants can be curative, but, when matched donors are unavailable, infusion of autologous HSPCs modified ex vivo by gene therapy is an alternative approach. We used a lentiviral vector encoding functional WASP to genetically correct HSPCs from three WAS patients and reinfused the cells after a reduced-intensity conditioning regimen. All three patients showed stable engraftment of WASP-expressing cells and improvements in platelet counts, immune functions, and clinical scores. Vector integration analyses revealed highly polyclonal and multilineage haematopoiesis resulting from the gene-corrected HSPCs. Lentiviral gene therapy did not induce selection of integrations near oncogenes, and no aberrant clonal expansion was observed after 20 to 32 months. Although extended clinical observation is required to establish long-term safety, lentiviral gene therapy represents a promising treatment for WAS.
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Affiliation(s)
- Alessandro Aiuti
- San Raffaele Telethon Institute for Gene Therapy, Division of Regenerative Medicine, Stem Cells, and Gene Therapy, San Raffaele Scientific Institute, 20132 Milan, Italy.
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3
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Osborn MJ, Starker CG, McElroy AN, Webber BR, Riddle MJ, Xia L, DeFeo AP, Gabriel R, Schmidt M, Von Kalle C, Carlson DF, Maeder ML, Joung JK, Wagner JE, Voytas DF, Blazar BR, Tolar J. TALEN-based gene correction for epidermolysis bullosa. Mol Ther 2013; 21:1151-9. [PMID: 23546300 PMCID: PMC3677309 DOI: 10.1038/mt.2013.56] [Citation(s) in RCA: 194] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is characterized by a functional deficit of type VII collagen protein due to gene defects in the type VII collagen gene (COL7A1). Gene augmentation therapies are promising, but run the risk of insertional mutagenesis. To abrogate this risk, we explored the possibility of using engineered transcription activator-like effector nucleases (TALEN) for precise genome editing. We report the ability of TALEN to induce site-specific double-stranded DNA breaks (DSBs) leading to homology-directed repair (HDR) from an exogenous donor template. This process resulted in COL7A1 gene mutation correction in primary fibroblasts that were subsequently reprogrammed into inducible pluripotent stem cells and showed normal protein expression and deposition in a teratoma-based skin model in vivo. Deep sequencing-based genome-wide screening established a safety profile showing on-target activity and three off-target (OT) loci that, importantly, were at least 10 kb from a coding sequence. This study provides proof-of-concept for TALEN-mediated in situ correction of an endogenous patient-specific gene mutation and used an unbiased screen for comprehensive TALEN target mapping that will cooperatively facilitate translational application.
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Affiliation(s)
- Mark J Osborn
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
- Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota, USA
| | - Colby G Starker
- Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Genetics, Cell Biology & Development, University of Minnesota, Minneapolis, Minnesota, USA
| | - Amber N McElroy
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Beau R Webber
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Megan J Riddle
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Lily Xia
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Anthony P DeFeo
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Richard Gabriel
- Department of Translational Oncology, National Center for Tumor Diseases, Heidelberg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Manfred Schmidt
- Department of Translational Oncology, National Center for Tumor Diseases, Heidelberg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Christof Von Kalle
- Department of Translational Oncology, National Center for Tumor Diseases, Heidelberg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Daniel F Carlson
- Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota, USA
| | - Morgan L Maeder
- Molecular Pathology Unit, Center for Computational & Integrative Biology, and Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts, USA
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, Massachusetts, USA
| | - J Keith Joung
- Molecular Pathology Unit, Center for Computational & Integrative Biology, and Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts, USA
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, Massachusetts, USA
- Department of Pathology, Harvard Medical School, Boston, MA, USA
| | - John E Wagner
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Daniel F Voytas
- Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Genetics, Cell Biology & Development, University of Minnesota, Minneapolis, Minnesota, USA
| | - Bruce R Blazar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jakub Tolar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
- Blood and Marrow Transplantation, University of Minnesota Medical School, MMC 366, 420 Delaware Street SE, Minneapolis, Minnesota 55455, USA. E-mail:
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Cartier N, Hacein-Bey-Abina S, Bartholomae CC, Bougnères P, Schmidt M, Kalle CV, Fischer A, Cavazzana-Calvo M, Aubourg P. Lentiviral hematopoietic cell gene therapy for X-linked adrenoleukodystrophy. Methods Enzymol 2012; 507:187-98. [PMID: 22365775 DOI: 10.1016/b978-0-12-386509-0.00010-7] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
X-linked adrenoleukodystrophy (X-ALD) is a severe genetic demyelinating disease caused by a deficiency in ALD protein, an adenosine triphosphate-binding cassette transporter encoded by the ABCD1 gene. When performed at an early stage of the disease, allogeneic hematopoietic stem cell transplantation (HCT) can arrest the progression of cerebral demyelinating lesions. To overcome the limitations of allogeneic HCT, hematopoietic stem cell (HSC) gene therapy strategy aiming to perform autologous transplantation of lentivirally corrected cells was developed. We demonstrated the preclinical feasibility of HSC gene therapy for ALD based on the correction of CD34+ cells from X-ALD patients using an HIV1-derived lentiviral vector. These results prompted us to initiate an HSC gene therapy trial in two X-ALD patients who had developed progressive cerebral demyelination, were candidates for allogeneic HCT, but had no HLA-matched donors or cord blood. Autologous CD34+ cells were purified from the peripheral blood after G-CSF stimulation, genetically corrected ex vivo with a lentiviral vector encoding wild-type ABCD1 cDNA, and then reinfused into the patients after they had received full myeloablative conditioning. Over 3 years of follow-up, the hematopoiesis remained polyclonal in the two patients treated with 7-14% of granulocytes, monocytes, and T and B lymphocytes expressing the lentivirally encoded ALD protein. There was no evidence of clonal dominance or skewing based on the retrieval of lentiviral insertion repertoire in different hematopoietic lineages by deep sequencing. Cerebral demyelination was arrested 14 and 16months, respectively, in the two treated patients, without further progression up to the last follow-up, a clinical outcome that is comparable to that observed after allogeneic HCT. Longer follow-up of these two treated patients and HSC gene therapy performed in additional ALD patients are however needed to evaluate the safety and efficacy of lentiviral HSC gene therapy in cerebral forms of X-ALD.
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Kang HJ, Bartholomae CC, Paruzynski A, Arens A, Kim S, Yu SS, Hong Y, Joo CW, Yoon NK, Rhim JW, Kim JG, Von Kalle C, Schmidt M, Kim S, Ahn HS. Retroviral gene therapy for X-linked chronic granulomatous disease: results from phase I/II trial. Mol Ther 2011; 19:2092-101. [PMID: 21878903 DOI: 10.1038/mt.2011.166] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
X-linked chronic granulomatous disease (CGD) is an inherited immunodeficiency caused by a defect in the gp91(phox) gene. In an effort to treat X-CGD, we investigated the safety and efficacy of gene therapy using a retroviral vector, MT-gp91. Two X-CGD patients received autologous CD34(+) cells transduced with MT-gp91 after a conditioning regimen consisting of fludarabine and busulfan. The level of gene-marked cells was highest at day 21 (8.3 and 11.7% in peripheral blood cells) but decreased to 0.08 and 0.5%, respectively, 3 years after gene transfer. The level of functionally corrected cells, as determined by nicotinamide adenine dinucleotide phosphate (NADPH) oxidase assay, reached a peak at day 17 (6.5% patient 1 (P1) and 14.3% patient 2 (P2) of total granulocytes) and declined to 0.05% (P1) and 0.21% (P2), 3 years later. Some retroviral vectors were found to have integrated within or close to the proto-oncogenes MDS1-EVI1, PRDM16, and CCND2; however, no abnormal cell expansion or related hematological malignancy was observed. Overall, the gene transfer procedure did not produce any serious adverse effects and was able to convert a significant fraction of blood cells to biologically functional cells, albeit for a short period of time.
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Affiliation(s)
- Hyoung Jin Kang
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
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Tolar J, Adair JE, Antoniou M, Bartholomae CC, Becker PS, Blazar BR, Bueren J, Carroll T, Cavazzana-Calvo M, Clapp DW, Dalgleish R, Galy A, Gaspar HB, Hanenberg H, Von Kalle C, Kiem HP, Lindeman D, Naldini L, Navarro S, Renella R, Rio P, Sevilla J, Schmidt M, Verhoeyen E, Wagner JE, Williams DA, Thrasher AJ. Stem cell gene therapy for fanconi anemia: report from the 1st international Fanconi anemia gene therapy working group meeting. Mol Ther 2011; 19:1193-8. [PMID: 21540837 DOI: 10.1038/mt.2011.78] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Survival rates after allogeneic hematopoietic cell transplantation (HCT) for Fanconi anemia (FA) have increased dramatically since 2000. However, the use of autologous stem cell gene therapy, whereby the patient's own blood stem cells are modified to express the wild-type gene product, could potentially avoid the early and late complications of allogeneic HCT. Over the last decades, gene therapy has experienced a high degree of optimism interrupted by periods of diminished expectation. Optimism stems from recent examples of successful gene correction in several congenital immunodeficiencies, whereas diminished expectations come from the realization that gene therapy will not be free of side effects. The goal of the 1st International Fanconi Anemia Gene Therapy Working Group Meeting was to determine the optimal strategy for moving stem cell gene therapy into clinical trials for individuals with FA. To this end, key investigators examined vector design, transduction method, criteria for large-scale clinical-grade vector manufacture, hematopoietic cell preparation, and eligibility criteria for FA patients most likely to benefit. The report summarizes the roadmap for the development of gene therapy for FA.
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Affiliation(s)
- Jakub Tolar
- Division of Blood and Marrow Transplantation, University of Minnesota, Minneapolis, Minnesota 55455, USA.
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Cartier N, Hacein-Bey-Abina S, Von Kalle C, Bougnères P, Fischer A, Cavazzana-Calvo M, Aubourg P. [Gene therapy of x-linked adrenoleukodystrophy using hematopoietic stem cells and a lentiviral vector]. Bull Acad Natl Med 2010; 194:255-268. [PMID: 21166117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
X-linked adrenoleukodystrophy (ALD) is a severe demyelinating disease of the brain caused by a deficiency in ALD protein, an adenosine triphosphate--binding cassette (ABC) transporter encoded by the ABCD1 gene. ALD progression can be halted by allogeneic hematopoietic cell transplantation (HCT). We have developed a gene therapy strategy based on ABCD1 gene transfer to autologous hematopoietic stem cells (CD34+) by a lentiviral vector derived from HIV-1. We initiated a clinical trial involving three ALD patients for whom no matched donor was available. Autologous CD34+ cells were transduced ex vivo with an HIV derived vector the wild-type ABCD1 gene then re-infused after myeloablative treatment. Polyclonal reconstitution was detected up to 24 to 30 months, with between 9% and 14% of granulocytes, monocytes, and T and B lymphocytes expressing the ALD protein, strongly suggesting that the patients' hematopoietic stem cells have been successfully transduced. Cerebral demyelination halted after 14 to 16 months in two first treated patients an outcome similar to that achieved by allogeneic HCT These results suggest that lentiviral vectors are suitable for transferring therapeutic genes to hematopoietic stem cells, and provide the first example of successful gene therapy for a severe neurodegenerative disease.
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Affiliation(s)
- Nathalie Cartier
- Inserm U745, Facult6 de Pharmacie, 4, avenue de l'Observatoire, 75006 Paris.
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Cartier N, Hacein-Bey-Abina S, Bartholomae CC, Veres G, Schmidt M, Kutschera I, Vidaud M, Abel U, Dal-Cortivo L, Caccavelli L, Mahlaoui N, Kiermer V, Mittelstaedt D, Bellesme C, Lahlou N, Lefrère F, Blanche S, Audit M, Payen E, Leboulch P, l'Homme B, Bougnères P, Von Kalle C, Fischer A, Cavazzana-Calvo M, Aubourg P. Hematopoietic stem cell gene therapy with a lentiviral vector in X-linked adrenoleukodystrophy. Science 2009; 326:818-23. [PMID: 19892975 DOI: 10.1126/science.1171242] [Citation(s) in RCA: 1068] [Impact Index Per Article: 71.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
X-linked adrenoleukodystrophy (ALD) is a severe brain demyelinating disease in boys that is caused by a deficiency in ALD protein, an adenosine triphosphate-binding cassette transporter encoded by the ABCD1 gene. ALD progression can be halted by allogeneic hematopoietic cell transplantation (HCT). We initiated a gene therapy trial in two ALD patients for whom there were no matched donors. Autologous CD34+ cells were removed from the patients, genetically corrected ex vivo with a lentiviral vector encoding wild-type ABCD1, and then re-infused into the patients after they had received myeloablative treatment. Over a span of 24 to 30 months of follow-up, we detected polyclonal reconstitution, with 9 to 14% of granulocytes, monocytes, and T and B lymphocytes expressing the ALD protein. These results strongly suggest that hematopoietic stem cells were transduced in the patients. Beginning 14 to 16 months after infusion of the genetically corrected cells, progressive cerebral demyelination in the two patients stopped, a clinical outcome comparable to that achieved by allogeneic HCT. Thus, lentiviral-mediated gene therapy of hematopoietic stem cells can provide clinical benefits in ALD.
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Gaspar HB, Parsley KL, Howe S, King D, Gilmour KC, Sinclair J, Brouns G, Schmidt M, Von Kalle C, Barington T, Jakobsen MA, Christensen HO, Al Ghonaium A, White HN, Smith JL, Levinsky RJ, Ali RR, Kinnon C, Thrasher AJ. Gene therapy of X-linked severe combined immunodeficiency by use of a pseudotyped gammaretroviral vector. Lancet 2004; 364:2181-7. [PMID: 15610804 DOI: 10.1016/s0140-6736(04)17590-9] [Citation(s) in RCA: 540] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND X-linked severe combined immunodeficiency (SCID-X1) is caused by mutations in the common cytokine-receptor gamma chain (gamma(c)), resulting in disruption of development of T lymphocytes and natural-killer cells. B-lymphocyte function is also intrinsically compromised. Allogeneic bone-marrow transplantation is successful if HLA-matched family donors are available, but HLA-mismatched procedures are associated with substantial morbidity and mortality. We investigated the application of somatic gene therapy by use of a gibbon-ape-leukaemia-virus pseudotyped gammaretroviral vector. METHODS Four children with SCID-X1 were enrolled. Autologous CD34-positive haemopoietic bone-marrow stem cells were transduced ex vivo and returned to the patients without preceding cytoreductive chemotherapy. The patients were monitored for integration and expression of the gamma(c) vector and for functional immunological recovery. FINDINGS All patients have shown substantial improvements in clinical and immunological features, and prophylactic medication could be withdrawn in two. No serious adverse events have been recorded. T cells responded normally to mitogenic and antigenic stimuli, and the T-cell-receptor (TCR) repertoire was highly diverse. Where assessable, humoral immunity, in terms of antibody production, was also restored and associated with increasing rates of somatic mutation in immunoglobulin genes. INTERPRETATION Gene therapy for SCID-X1 is a highly effective strategy for restoration of functional cellular and humoral immunity.
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Affiliation(s)
- H Bobby Gaspar
- Molecular Immunology Unit, Institute of Child Health, University College London, London, UK
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Schmidt M, Glimm H, Wissler M, Hoffmann G, Olsson K, Sellers S, Carbonaro D, Tisdale JF, Leurs C, Hanenberg H, Dunbar CE, Kiem HP, Karlsson S, Kohn DB, Williams D, Von Kalle C. Efficient characterization of retro-, lenti-, and foamyvector-transduced cell populations by high-accuracy insertion site sequencing. Ann N Y Acad Sci 2003; 996:112-21. [PMID: 12799289 DOI: 10.1111/j.1749-6632.2003.tb03239.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The identification of unknown genomic flanking DNA sequences can be used for the molecular monitoring of retro-, lenti- and foamyviral integration, transgenes in early embryogenesis, insertional mutagenesis, cell fate, and stem cell plasticity. Most existing methods reflect shortcomings in sensitivity and or specificity, thus limiting genomic sequencing of unknown flanking DNA to clonal preparations. The application of linear amplification-mediated PCR (LAM-PCR), a recently developed direct sequencing technique for flanking DNA, should circumvent current limitations in different research fields. This technique combines preamplification of target DNA with a unique succession of enzymatic reactions on solid-phase. Using LAM-PCR, we show the previously unfeasible in vivo retro-, lenti- and foamyvirus integration site analysis in primate peripheral blood hematopoietic cells and human xenograft hematopoiesis. In light of two severe adverse events that occurred in a clinical SCID-X1 gene therapy trial, in vivo monitoring of the reinfused transduced cell pool by integration site analysis will be an important component of each gene transfer and therapy study aimed at clinical use.
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Affiliation(s)
- Manfred Schmidt
- Department I of Internal Medicine, University of Freiburg, 79106 Freiburg, Germany
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Leurs C, Jansen M, Pollok KE, Heinkelein M, Schmidt M, Wissler M, Lindemann D, Von Kalle C, Rethwilm A, Williams DA, Hanenberg H. Comparison of three retroviral vector systems for transduction of nonobese diabetic/severe combined immunodeficiency mice repopulating human CD34+ cord blood cells. Hum Gene Ther 2003; 14:509-19. [PMID: 12718762 DOI: 10.1089/104303403764539305] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The use of recombinant vectors based on wild-type viruses that are absent in humans and are not associated with any disease in their natural animal hosts or in accidentally infected humans would add an additional level of safety for human somatic gene therapy approaches. These criteria are fulfilled by foamy viruses (FVs), a family of complex retroviruses whose members are widely found among mammals and are apathogenic in all hosts. Here, we show by comparison of identically designed vector constructs that recombinant retroviral vectors based on FVs were as efficient as lentiviral vectors in transducing nonobese diabetic/severe combined immunodeficiency (NOD/SCID) mice repopulating human CD34(+) cord blood (CB) cells. The FV vector was able to achieve gene transfer levels up to 84% of engrafted human cells in a short overnight transduction protocol. In contrast, without prestimulation of the target cells, a human immunodeficiency virus type 1 (HIV-1)-based lentiviral vector pseudotyped with gibbon ape leukemia virus envelope (GALV Env) was nearly as inefficient as murine leukemia virus (MLV)-based oncoretroviral vectors in transducing NOD/SCID repopulating cells. The same HIV vector pseudotyped with the vesicular stomatitis virus glycoprotein G (VSV-G) achieved high marking efficiency. Clonality analysis of bone marrow samples showed oligoclonal hematopoiesis with single to multiple insertions per cell, both for FV and HIV vectors. These data demonstrate that vectors based on FVs warrant further investigation and development for medical use.
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Affiliation(s)
- Cordula Leurs
- Klinik für Pädiatrische Hämatologie und Onkologie, Zentrum für Kinderheilkunde, Heinrich-Heine-Universität, 40225 Düsseldorf, Germany
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Ailles L, Schmidt M, Santoni de Sio FR, Glimm H, Cavalieri S, Bruno S, Piacibello W, Von Kalle C, Naldini L. Molecular evidence of lentiviral vector-mediated gene transfer into human self-renewing, multi-potent, long-term NOD/SCID repopulating hematopoietic cells. Mol Ther 2002; 6:615-26. [PMID: 12409260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
Abstract
A major challenge in gene therapy is to achieve efficient transduction of hematopoietic stem cells (HSC). It has previously been shown that lentiviral vectors (LV) transduce efficiently human cord blood-derived NOD/SCID mouse repopulating cells (SRC). Here we studied the effect of cytokines during the short ex vivo incubation with vector. Although SRC transduction was efficient without stimulation, the presence of cytokines significantly improved it. The treatment did not affect the engraftment level or the SRC frequency, but seemed to enhance SRC susceptibility to LV. SRC transduced in both conditions repopulated primary and secondary recipients, maintaining stable multi-lineage transgene expression. Using linear amplification-mediated PCR, we then analyzed vector integration in the bone marrow and CFC of the engrafted mice to monitor the clonal activity of the transduced SRC in vivo. We showed polyclonal engraftment, multi-lineage differentiation, and propagation to secondary recipients of individual SRC. We observed multiple integrations in most clones. These results provide the first formal demonstration that primitive human HSC with self-renewal and multi-lineage repopulation capacities were transduced by LV. Our findings are relevant for the design of clinical protocols that exploit this system to reach significant engraftment by genetically modified HSC in the absence of in vivo selection or strong conditioning regimens.
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Affiliation(s)
- Laurie Ailles
- Laboratory for Gene Transfer and Therapy, University of Torino Medical School, Candiolo, Italy
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Rommel B, Rogalla P, Jox A, Kalle CV, Kazmierczak B, Wolf J, Bullerdiek J. HMGI-C, a member of the high mobility group family of proteins, is expressed in hematopoietic stem cells and in leukemic cells. Leuk Lymphoma 1997; 26:603-7. [PMID: 9389367 DOI: 10.3109/10428199709050896] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The human HMGI-C gene encoding a member of the high mobility group protein family normally is expressed only during embryonic/fetal development but in none of the adult tissues tested so far. Recently, the HMGI-C gene has attracted a lot of interest since its rearrangements seem to underlie the development of frequent benign mesenchymal tumors. We have therefore checked CD34 positive hematopoietic stem cells and their normal and malignant descendants for HMGI-C expression. CD34 positive stem cells from healthy donors and the leukemia samples tested were positive while all peripheral blood samples from healthy volunteers were negative. We have concluded that the expression of the HMGI-C gene in leukemia seems to be a secondary effect due to abnormal stem cell proliferation and might be a sensitive tumor marker for particular types of leukemia.
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MESH Headings
- Acute Disease
- Adult
- Antigens, CD34/metabolism
- Gene Expression
- Hematopoietic Stem Cells/metabolism
- High Mobility Group Proteins/biosynthesis
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/blood
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myeloid/blood
- Leukemia, Myeloid/metabolism
- Neoplasm Proteins/metabolism
- Polymerase Chain Reaction
- Transcription, Genetic
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Affiliation(s)
- B Rommel
- Center of Human Genetics and Genetic Counseling, University of Bremen, Germany
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