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Canarutto D, Tucci F, Gattillo S, Zambelli M, Calbi V, Gentner B, Ferrua F, Marktel S, Migliavacca M, Barzaghi F, Consiglieri G, Gallo V, Fumagalli F, Massariello P, Parisi C, Viarengo G, Albertazzi E, Silvani P, Milani R, Santoleri L, Ciceri F, Cicalese MP, Bernardo ME, Aiuti A. Peripheral blood stem and progenitor cell collection in pediatric candidates for ex vivo gene therapy: a 10-year series. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2021; 22:76-83. [PMID: 34485596 PMCID: PMC8390560 DOI: 10.1016/j.omtm.2021.05.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 05/26/2021] [Indexed: 01/09/2023]
Abstract
Hematopoietic stem and progenitor cell (HSPC)-based gene therapy (GT) requires the collection of a large number of cells. While bone marrow (BM) is the most common source of HSPCs in pediatric donors, the collection of autologous peripheral blood stem cells (PBSCs) is an attractive alternative for GT. We present safety and efficacy data of a 10-year cohort of 45 pediatric patients who underwent PBSC collection for backup and/or purification of CD34+ cells for ex vivo gene transfer. Median age was 3.7 years and median weight 15.8 kg. After mobilization with lenograstim/plerixafor (n = 41) or lenograstim alone (n = 4) and 1−3 cycles of leukapheresis, median collection was 37 × 106 CD34+ cells/kg. The procedures were well tolerated. Patients who collected ≥7 and ≥13 × 106 CD34+ cells/kg in the first cycle had pre-apheresis circulating counts of at ≥42 and ≥86 CD34+ cells/μL, respectively. Weight-adjusted CD34+ cell yield was positively correlated with peripheral CD34+ cell counts and influenced by female gender, disease, and drug dosage. All patients received a GT product above the minimum target, ranging from 4 to 30.9 × 106 CD34+ cells/kg. Pediatric PBSC collection compares well to BM harvest in terms of CD34+ cell yields for the purpose of GT, with a favorable safety profile.
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Affiliation(s)
- Daniele Canarutto
- Vita-Salute San Raffaele University, Via Olgettina, 58, 20132 Milan, Italy.,San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Francesca Tucci
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Salvatore Gattillo
- Immunohematology and Transfusion Medicine Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Matilde Zambelli
- Immunohematology and Transfusion Medicine Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Valeria Calbi
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Bernhard Gentner
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Francesca Ferrua
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Sarah Marktel
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Maddalena Migliavacca
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Federica Barzaghi
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Giulia Consiglieri
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Vera Gallo
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Francesca Fumagalli
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | | | - Cristina Parisi
- Immunohematology and Transfusion Medicine Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Gianluca Viarengo
- Immunohematology and Transfusion Medicine Service, Fondazione IRCCS Policlinico S. Matteo, Viale Camillo Golgi, 19, 27100 Pavia, Italy
| | - Elena Albertazzi
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Paolo Silvani
- Department of Anesthesia and Critical Care, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Raffaella Milani
- Immunohematology and Transfusion Medicine Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Luca Santoleri
- Immunohematology and Transfusion Medicine Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Fabio Ciceri
- Vita-Salute San Raffaele University, Via Olgettina, 58, 20132 Milan, Italy.,Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Maria Pia Cicalese
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Maria Ester Bernardo
- Vita-Salute San Raffaele University, Via Olgettina, 58, 20132 Milan, Italy.,San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
| | - Alessandro Aiuti
- Vita-Salute San Raffaele University, Via Olgettina, 58, 20132 Milan, Italy.,San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy.,Pediatric Immunohematology Unit and BMT Program, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy
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2
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Panch SR, Reddy OL, Li K, Bikkani T, Rao A, Yarlagadda S, Highfill S, Fowler D, Childs RW, Battiwalla M, Barrett J, Larochelle A, Mackall C, Shah N, Stroncek DF. Robust Selections of Various Hematopoietic Cell Fractions on the CliniMACS Plus Instrument. Clin Hematol Int 2019; 1:161-167. [PMID: 34595426 PMCID: PMC8432366 DOI: 10.2991/chi.d.190529.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 05/26/2019] [Indexed: 11/30/2022] Open
Abstract
Cell separation technologies play a vital role in the graft engineering of hematopoietic cellular fractions, particularly with the rapid expansion of the field of cellular therapeutics. The CliniMACS Plus Instrument (Miltenyi Biotec) utilizes immunomagnetic techniques to isolate hematopoietic progenitor cells (HPCs), T cells, NK cells, and monocytes. These products are ultimately used for HPC transplantation and for the manufacture of adoptive immunotherapies. We evaluated the viable cell recovery and cell purity of selections and depletions performed on the CliniMACS Plus over a 10-year period at our facility, specifically assessing for the isolation of CD34+, CD4+, CD3+/CD56+, CD4+/CD8+, and CD25+ cells. Additionally, patient- and instrument-related factors affecting these parameters were examined. Viable cell recovery ranged from 32.3 ± 10.2% to 65.4 ± 15.4%, and was the highest for CD34+ selections. Cell purity ranged from 86.3 ± 7.2% to 99.0 ± 1.1%, and was the highest for CD4+ selections. Undesired cell fractions demonstrated a range of 1.2 ± 0.45 to 5.1 ± 0.4 log reductions. Red cell depletions averaged 2.12 ± 0.68 logs, while platelets were reduced by an average of 4.01 ± 1.57 logs. Donor characteristics did not impact viable cell recovery or cell purity for CD34+ or CD4+ cell enrichments; however, these were affected by manufacturing variables, including tubing size, bead quantity, and whether preselection platelet washes were performed. Our data demonstrate the efficient recovery of hematopoietic cellular fractions on the CliniMACS Plus that may be optimized by adjusting manufacturing variables.
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Affiliation(s)
- Sandhya R Panch
- Center for Cellular Engineering, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Opal L Reddy
- Center for Cellular Engineering, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Katherine Li
- Center for Cellular Engineering, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Thejaswi Bikkani
- Center for Cellular Engineering, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Anusha Rao
- Center for Cellular Engineering, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Swathi Yarlagadda
- Center for Cellular Engineering, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Steven Highfill
- Center for Cellular Engineering, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Daniel Fowler
- Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Richard W Childs
- Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Minocher Battiwalla
- Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - John Barrett
- Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Andre Larochelle
- Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Crystal Mackall
- Cancer Immunology and Immunotherapy Program, Stanford Cancer Institute, Palo Alto, California, USA
| | - Nirali Shah
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - David F Stroncek
- Center for Cellular Engineering, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
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3
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Bone marrow harvesting from paediatric patients undergoing haematopoietic stem cell gene therapy. Bone Marrow Transplant 2019; 54:1995-2003. [PMID: 31150018 PMCID: PMC6897559 DOI: 10.1038/s41409-019-0573-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 03/15/2019] [Accepted: 04/05/2019] [Indexed: 01/06/2023]
Abstract
Collection of an adequate amount of autologous haematopoietic stem progenitor cells (HSPC) is required for ex vivo manipulation and successful engraftment for certain inherited disorders. Fifty-seven paediatric patients (age 0.5–11.4 years) underwent a bone marrow harvest for the purpose of HSPC gene therapy (GT), including adenosine deaminase-severe combined immunodeficiency (ADA-SCID), Wiskott–Aldrich syndrome (WAS) and metachromatic leukodystrophy (MLD) patients. Total nucleated cells and the percentage and absolute counts of CD34+ cells were calculated at defined steps of the procedure (harvest, CD34+ cell purification, transduction with the gene transfer vector and infusion of the medicinal product). A minimum CD34+ cell dose for infusion was 2 × 106/kg, with an optimal target at 5–10 × 106/kg. Median volume of bone marrow harvested was 34.2 ml/kg (range 14.2–56.6). The number of CD34+ cells collected correlated inversely with weight and age in all patients and particularly in the MLD children group. All patients reached the minimum target dose for infusion: median dose of CD34+ cells/kg infused was 10.3 × 106/kg (3.7–25.9), with no difference among the three groups. Bone marrow harvest of volumes > 30 ml/kg in infants and children with ADA-SCID, WAS and MLD is well tolerated and allows obtaining an adequate dose of a medicinal product for HSPC-GT.
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Rothbauer M, Frauenlob M, Gutkas K, Fischer MB, Sinner EK, Küpcü S, Ertl P. Development of a Multifunctional Nanobiointerface Based on Self-Assembled Fusion-Protein rSbpA/ZZ for Blood Cell Enrichment and Phenotyping. ACS APPLIED MATERIALS & INTERFACES 2017; 9:34423-34434. [PMID: 28920671 DOI: 10.1021/acsami.7b09041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We present a multifunctional nanobiointerface for blood cell capture and phenotyping applications that features both excellent antifouling properties and high antibody activity. Multifunctionality is accomplished by modifying polymeric materials using self-assembled S-layer fusion-protein rSbpA/ZZ to immobilize high density antibodies at the two protein A binding sites of the rSbpA/ZZ nanolattice structure. Controlled orientation and alignment of the antibodies reduced antibody consumption 100-fold and increased cell capture efficiency 4-fold over standard methodologies. Cell analysis in complex samples was made possible by the remarkable antifouling properties of the rSbpA domain, while at the same time reducing unspecific binding and forgoing tedious blocking procedures. An automated microfluidic in situ cell analysis platform for isolation and phenotyping of primary peripheral blood mononuclear cells was developed as practical application. Results obtained using our automated microfluidic cell analysis platform showed that the multifunctional nanobiointerface can discriminate among T helper and cytotoxic T cells, and thymocytes. Additionally, on-chip cell capture under flow conditions using a high affinity CD 3 selective nanobiointerface preferentially isolated cells with strong surface marker expression. This means that our dynamic microfluidic cell purification method allows the enrichment of 773 CD 8 positive cytotoxic T cells out of a total blood cell population of 7728 PBMCs, which is an increase in cell enrichment of 8-fold with a purity of 85%.
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Affiliation(s)
- Mario Rothbauer
- Vienna University of Technology , Faculty of Technical Chemistry, Institute of Applied Synthetic Chemistry & Institute of Chemical Technologies and Analytics, Getreidemarkt 9, 1060 Vienna, Austria
| | - Martin Frauenlob
- University of Natural Resources and Life Sciences , Department of Nanobiotechnology, Institute for Synthetic Bioarchitectures, Muthgasse 11, 1190 Vienna, Austria
| | - Karoline Gutkas
- University of Natural Resources and Life Sciences , Department of Nanobiotechnology, Institute for Synthetic Bioarchitectures, Muthgasse 11, 1190 Vienna, Austria
| | - Michael B Fischer
- Department of Life Science and Biomedicine, Danube University Krems , Dr. Karl Dorrekstrasse 30, 3500 Krems, Austria
- Clinic for Blood Group Serology and Transfusion Medicine, Medical University Vienna , Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Eva-Kathrin Sinner
- University of Natural Resources and Life Sciences , Department of Nanobiotechnology, Institute for Synthetic Bioarchitectures, Muthgasse 11, 1190 Vienna, Austria
| | - Seta Küpcü
- University of Natural Resources and Life Sciences , Department of Nanobiotechnology, Institute for Synthetic Bioarchitectures, Muthgasse 11, 1190 Vienna, Austria
| | - Peter Ertl
- Vienna University of Technology , Faculty of Technical Chemistry, Institute of Applied Synthetic Chemistry & Institute of Chemical Technologies and Analytics, Getreidemarkt 9, 1060 Vienna, Austria
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5
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Hematopoietic Gene Therapies for Metabolic and Neurologic Diseases. Hematol Oncol Clin North Am 2017; 31:869-881. [DOI: 10.1016/j.hoc.2017.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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6
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Kouroupis D, Wang XN, El-Sherbiny Y, McGonagle D, Jones E. The Safety of Non-Expanded Multipotential Stromal Cell Therapies. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/978-3-319-59165-0_4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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7
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TCRαβ CD19 depletion in allogeneic haematopoietic stem cell transplantation performed for Hurler syndrome. Bone Marrow Transplant 2015; 51:438-9. [PMID: 26551775 DOI: 10.1038/bmt.2015.258] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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8
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9
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Schwinger W, Sovinz P, Benesch M, Lackner H, Seidel M, Strenger V, Sperl D, Raicht A, Brunner-Krainz M, Paschke E, Plecko B, Urban C. Unrelated CD3/CD19-depleted peripheral stem cell transplantation for Hurler syndrome. Pediatr Hematol Oncol 2014; 31:723-30. [PMID: 25116402 DOI: 10.3109/08880018.2014.939794] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
For patients with mucopolysaccharidosis type IH (MPS1-H; Hurler syndrome), early allogeneic hematopoietic stem cell transplantation (HSCT) is the treatment of choice. One boy and one girl aged 20.5 and 22 months, respectively, with MPS1-H received a conditioning regimen consisting of thiotepa, fludarabine, treosulfan, and ATG. Grafts were peripheral blood stem cells from unrelated donors (10/12 and 11/11 matched), that were manipulated by CD3/CD19 depletion and contained 20.3 and 28.2 × 10(6) CD34+ cells/kg body weight, respectively. Both patients achieved stable hematopoietic engraftment and stable donor chimerism. Neither acute or chronic graft-versus-host disease (GVHD) nor other severe transplant-related complications occurred. At a follow-up of 48 and 37 months, both patients are alive and well with normal levels of α-L-iduronidase and have made major neurodevelopmental progress. Treosulfan-based conditioning offers the advantage of reduced toxicity; the use of unrelated CD3/CD19-depleted peripheral stem cell grafts allows transfusion of high CD34+ cell numbers together with a "tailored" number of CD3+ cells as well as engraftment facilitating cells in order to achieve rapid hematopoietic engraftment while reducing the risk of graft rejection and GVHD. This regimen might be an additional option when unrelated donor HSCT is considered for a patient with MPS1-H.
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Affiliation(s)
- Wolfgang Schwinger
- 1Division of Pediatric Hematology/Oncology, University Children's Hospital, Graz, Austria
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10
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Batzios SP, Zafeiriou DI. Developing treatment options for metachromatic leukodystrophy. Mol Genet Metab 2012; 105:56-63. [PMID: 22078456 DOI: 10.1016/j.ymgme.2011.10.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Revised: 10/10/2011] [Accepted: 10/10/2011] [Indexed: 12/25/2022]
Abstract
Metachromatic leukodystrophy (MLD) represents a devastating lysosomal storage disease characterized by intralysosomal accumulation of the sphingolipid sulfatide in various tissues. Three types of the disease are currently distinguished: the late-infantile, which is the most commonly observed, the juvenile and the adult type. Demyelination represents the main histopathological feature of the disorder, leading to neurological impairment with no curative treatment currently available. Nevertheless, the increased scientific interest on the disease has led to the experimental use of innovative therapeutic approaches in animal models, aiming to provide an effective therapeutic regimen for human patients, as well. This paper provides an overview of developing treatment options among patients with MLD. Apart from hematopoietic stem cell transplantation, already in use for decades, other recent data discussed includes umbilical cord blood and stem cell transplantation, enzyme replacement therapy, gene therapy and autologous hematopoietic transplantation of genetically modified stem cells. Gene therapy with oligodedroglial, neural progenitor, embryonic and microencapsulated recombinant cells represents add-on treatment options still on experimental level.
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Affiliation(s)
- Spyros P Batzios
- 1st Department of Paediatrics, Aristotle University of Thessaloniki, Thessaloniki, Greece
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11
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Natural killer cell activity influences outcome after T cell depleted stem cell transplantation from matched unrelated and haploidentical donors. Best Pract Res Clin Haematol 2011; 24:403-11. [DOI: 10.1016/j.beha.2011.04.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Smith NJ, Marcus RE, Sahakian BJ, Kapur N, Cox TM. Haematopoietic stem cell transplantation does not retard disease progression in the psycho-cognitive variant of late-onset metachromatic leukodystrophy. J Inherit Metab Dis 2010; 33 Suppl 3:S471-5. [PMID: 21080229 DOI: 10.1007/s10545-010-9240-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 10/19/2010] [Accepted: 10/21/2010] [Indexed: 12/12/2022]
Abstract
Haematopoietic stem cell transplantation has an unproven role in the management of late-onset metachromatic leukodystrophy: theoretically justified through the engraftment of enzyme-replete haematopoietic progenitors and restoration of capacity for sulphatide catabolism in neural tissue through enzyme recapture, the long-term outcome is unknown. The rarity of the psycho-cognitive variant and slow progression of late-onset disease impairs evaluation of treatment. We report detailed clinical and neuropsychological assessments after haematopoietic stem-cell transplantation in a patient with a late-onset psycho-cognitive form of metachromatic leukodystrophy. Cognitive decline, indistinguishable from the natural course of the disease, was serially documented over 11 years despite complete donor chimaerism and correction of leukocyte arylsulphatase A to wild type values; subtle motor deterioration was similarly noted and progressive cerebral volume loss was evident upon magnetic resonance imaging. Sensory nerve conduction deteriorated 17 months post-transplantation with apparent stabilisation at 11-year review. Haematopoietic stem-cell transplantation was ineffective for this rare attenuated variant of metachromatic leukodystrophy. In the few patients identified pre-symptomatically or with early-phase disease, clear recommendations are lacking; when transplantation is considered, umbilical cord blood grafts from enzyme-replete donors with adjunctive mesenchymal stem cell infusions from the same source may be preferable. Improved outcomes will depend on enhanced awareness and early diagnosis of the disease, so that promising interventions such as genetically modified, autologous stem cell transplantation have the best opportunity of success.
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Affiliation(s)
- Nicholas J Smith
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Box 157, Cambridge , CB2 0QQ, UK.
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Gaipa G, Tilenni M, Straino S, Burba I, Zaccagnini G, Belotti D, Biagi E, Valentini M, Perseghin P, Parma M, Campli CD, Biondi A, Capogrossi MC, Pompilio G, Pesce M. GMP-based CD133(+) cells isolation maintains progenitor angiogenic properties and enhances standardization in cardiovascular cell therapy. J Cell Mol Med 2009; 14:1619-34. [PMID: 19627397 PMCID: PMC3829025 DOI: 10.1111/j.1582-4934.2009.00854.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The aim of the present study was to develop and validate a good manufacturing practice (GMP) compliant procedure for the preparation of bone marrow (BM) derived CD133+ cells for cardiovascular repair. Starting from available laboratory protocols to purify CD133+ cells from human cord blood, we implemented these procedures in a GMP facility and applied quality control conditions defining purity, microbiological safety and vitality of CD133+ cells. Validation of CD133+ cells isolation and release process were performed according to a two-step experimental program comprising release quality checking (step 1) as well as ‘proofs of principle’ of their phenotypic integrity and biological function (step 2). This testing program was accomplished using in vitro culture assays and in vivo testing in an immunosuppressed mouse model of hindlimb ischemia. These criteria and procedures were successfully applied to GMP production of CD133+ cells from the BM for an ongoing clinical trial of autologous stem cells administration into patients with ischemic cardiomyopathy. Our results show that GMP implementation of currently available protocols for CD133+ cells selection is feasible and reproducible, and enables the production of cells having a full biological potential according to the most recent quality requirements by European Regulatory Agencies.
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Affiliation(s)
- Giuseppe Gaipa
- Laboratorio Interdipartimentale di Terapia Cellulare Stefano Verri, Azienda Ospedaliera San Gerardo, Monza, Milan, Italy
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15
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Guenechea G, Segovia JC, Bueren JA. Immunomagnetic enrichment of human and mouse hematopoietic stem cells for gene therapy applications. Methods Mol Biol 2009; 506:1-11. [PMID: 19110615 DOI: 10.1007/978-1-59745-409-4_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The hematopoietic stem cells (HSCs) constitute an ideal target for the gene therapy of inherited diseases affecting the hematopoietic system. HSCs, however, constitute a very rare population of progenitor cells, most of which are out of cycle in normal bone marrow. To facilitate their transduction with gammaretro-viral or lentiviral vectors, HSCs are generally enriched using physical or pharmacologic methods. In this chapter we describe efficient procedures which are frequently used to enrich human and mouse HSCs, aiming at the transduction of these cells with adequate gene therapy vectors or the subsequent purification of particular HSCs by fluorescence-activated cell sorting.
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Affiliation(s)
- Guillermo Guenechea
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid, Spain
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16
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Tong X, Xiong Y, Zborowski M, Farag SS, Chalmers JJ. A novel high throughput immunomagnetic cell sorting system for potential clinical scale depletion of T cells for allogeneic stem cell transplantation. Exp Hematol 2007; 35:1613-22. [PMID: 17697744 PMCID: PMC2094009 DOI: 10.1016/j.exphem.2007.06.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2007] [Revised: 06/04/2007] [Accepted: 06/22/2007] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To develop an immunomagnetic cell separation system for allogeneic hematopoietic stem cell (HSC) transplantations, which can achieve a high level of T-cell depletion (at least 4.0 log(10)), high level of recovery of hematopoietic stem cells (>90%), with a high throughput (>10(6) cells/second). METHODS Peripheral blood leukocytes (PBLs) from buffy coats were spiked with CD34-expressing cells (KG1a) to mimic a leukaphoresis product containing stimulated HSCs. T cells were labeled with anti-CD3(+) Dynabeads and separated in a quadrupole magnetic cell sorter (QMS). The performance of the system with respect to T-cell depletion and recovery of non-T cells and spiked KG1a was determined using four-color, flow cytometry analysis, with the aid of Trucount cell-concentration calibration beads. Limiting dilution assays were also performed to quantify the log(10) depletion of clonable T cells. RESULTS While the general performance of the QMS system is governed by proven theoretical principles, significant system variability exist, not all of which can be explained by our current understanding. Consequently, a factorial design was employed, guided by JMP software, to optimize the labeling conditions and operation of the QMS focused on maximizing the depletion of T cell, and recovery of unlabeled cells including KG1a cells. From these studies, an optimized, no wash, immunomagnetic labeling protocol and optimized QMS operating conditions were developed. For an average initial cell concentration of 1.7 x 10(8) total cells, an average 3.96 +/- 0.33 log(10) depletion (range, 3.53-4.34) of CD3(+)CD45(+) cells with a mean 99.43% +/- 4.23% recovery of CD34(+)CD45(+) cells (range, 94.38-104.90%) was achieved at a sorting speed of 10(6) cells/s (n = 6). Limiting dilution assays on the T-cell depleted fractions, which gave a log(10) depletion of 3.51 for the clonable T cells. CONCLUSION We suggest that this system will provide superior performance with respect to T-cell depletion and CD34(+) recovery for clinical allogeneic bone marrow transplants. Ongoing studies, on a clinical scale, are being conducted to demonstrate this claim.
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Affiliation(s)
- Xiaodong Tong
- Department of Chemical and Biomolecular Engineering, The Ohio State University. Columbus OH
| | - Ying Xiong
- Department of Chemical and Biomolecular Engineering, The Ohio State University. Columbus OH
| | - Maciej Zborowski
- Biomedical Engineering Department, The Cleveland Clinic Foundation. Cleveland OH
| | - Sherif S. Farag
- Department of Internal Medicine, Division of Hematology/Oncology, Blood and Bone Marrow Transplantation Program, Indiana University School of Medicine, Indianapolis, OH
| | - Jeffrey J. Chalmers
- Department of Chemical and Biomolecular Engineering, The Ohio State University. Columbus OH
- Director, University Cell Analysis and Sorting Core, Heart and Lung Research Institute, The Ohio State University, Columbus OH
- *To whom correspondence should be addressed. Koffolt Laboratories, 140 W. 19 Avenue, Columbus, OH, 43210, USA; Telephone: (614) 292-2727, Fax: (614) 292-3769, e-mail:
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17
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Iwasaki H, Fukushima K, Kawamoto A, Umetani K, Oyamada A, Hayashi S, Matsumoto T, Ishikawa M, Shibata T, Nishimura H, Hirai H, Mifune Y, Horii M, Sugimura K, Suehiro S, Asahara T. Synchrotron radiation coronary microangiography for morphometric and physiological evaluation of myocardial neovascularization induced by endothelial progenitor cell transplantation. Arterioscler Thromb Vasc Biol 2007; 27:1326-33. [PMID: 17363693 DOI: 10.1161/atvbaha.106.137141] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Therapeutic effect of stem cell transplantation (SCTx) for myocardial neovascularization has been evaluated by histological capillary density in small animals. However, it has been technically difficult to obtain imaging evidence of collateral formation by conventional angiography. METHODS AND RESULTS Peripheral blood CD34+ and CD34- cells were isolated from patients with critical limb ischemia. PBS, CD34- cells, or CD34+ cells were intramyocardially transplanted after ligating LAD of nude rats. Coronary angiography of ex vivo beating hearts 5 and 28 days after the treatment was performed using the third generation synchrotron radiation microangiography (SRM), which has potential to visualize vessels as small as 20 microm in diameter. The SRM was performed pre and post sodium nitroprusside (SNP) to examine vascular physiology at each time point. Diameter of most collateral vessels was 20 to 120 microm, apparently invisible size in conventional angiography. Rentrop scores at day 28 pre and post SNP were significantly greater in CD34+ cell group than other groups (P<0.01). To quantify the extent of collateral formation, angiographic microvessel density (AMVD) in the occluded LAD area was analyzed. AMVD on day 28 post SNP, not pre SNP, was significantly augmented in CD34+ cell group than other groups (P<0.05). AMVD post SNP closely correlated with histological capillary density (R=0.82, P<0.0001). CONCLUSIONS The SRM, capable of visualizing microvessels, may be useful for morphometric and physiological evaluation of coronary collateral formation by SCTx. The novel imaging system may be an essential tool in future preclinical/translational research of stem cell biology.
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Affiliation(s)
- Hiroto Iwasaki
- Stem Cell Translational Research, Kobe Institute of Biomedical Research and Innovation/RIKEN Center for Developmental Biology, 2-2 Minatojima-Minamimachi, Chuo-ku, Kobe 650-0047, Japan
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18
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Preparative applications of magnetic separation in biology and medicine. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/s0075-7535(06)32009-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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19
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Guo Y, Engelhardt M, Wider D, Abdelkarim M, Lübbert M. Effects of 5-aza-2'-deoxycytidine on proliferation, differentiation and p15/INK4b regulation of human hematopoietic progenitor cells. Leukemia 2006; 20:115-21. [PMID: 16307025 DOI: 10.1038/sj.leu.2404019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The demethylating agents 5-azacytidine and 5-aza-2'-deoxycytidine (DAC) have been shown to induce differentiation and inhibit growth of leukemic myeloid cells at low concentrations. However, the effect of DAC in changing the differentiation and proliferation behavior of normal human myeloid progenitors has rarely been investigated. Therefore, we established an in vitro model of normal hematopoietic differentiation, using CD34+ cells from mobilized peripheral blood, to study proliferation and colony formation, expression of several myeloid maturation markers and of the inhibitor of cyclin-dependent kinases p15/INK4b. Upon DAC treatment, cell growth was significantly decreased in a dose-dependent manner, without an increase in cytotoxicity. DAC treatment also resulted in a substantial increase of lysozyme-positive cells, which could be enhanced by G-CSF, a modest increase of myeloperoxidase+ and CD15+ cells, as well as an increase of colony-forming cells (CFU-GM) compared to control cells. p15/INK4b protein expression was strongly upregulated upon myeloid maturation, and additional DAC treatment did not change p15 expression or the methylation status of the p15 promoter at the noncytotoxic concentrations used. Taken together, these data indicate a role of DAC in changing myeloid progenitor cell expansion and differentiation. This model appears suitable also for global analyses of multiple differentially methylated genes.
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Affiliation(s)
- Y Guo
- Department of Hematology/Oncology, University of Freiburg Medical Center, Freiburg, Germany
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20
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Lara O, Tong X, Zborowski M, Farag SS, Chalmers JJ. Comparison of two immunomagnetic separation technologies to deplete T cells from human blood samples. Biotechnol Bioeng 2006; 94:66-80. [PMID: 16518837 DOI: 10.1002/bit.20807] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The objective of this study was to compare the performance of two immunomagnetic separation technologies to deplete T cells from buffy coats of human blood. Specifically, two versions of the commercial MACS(R) Technology: MiniMACS and SuperMACS, and a prototype, flow-through system, the QMS, were evaluated. Peripheral blood mononuclear leukocytes (PBL) were isolated from buffy coats and an immunomagnetic separation of CD3(+) cells was conducted using company and optimized labeling protocols. To mimic peripheral blood containing bone marrow purged hematopoietic stem cells, HSC, CD34 expressing-cells (KG1a) were spiked into PBL prior to T-cell depletion once optimized depletion conditions were determined. Once the labeling protocol was optimized, the MiniMACS system performed well by producing a highly enriched CD3(+) fraction, and a respectable level of depletion of T cells and recovery of KG1a cells in the depleted fraction; an average log(10) depletion of T cells of 2.88 +/- 0.17 and an average recovery of the KG1a cells of 60.8 +/- 5.94% (n = 14). The performance of the SuperMACS system was very similar with an average log(10) depletion of T cells of 2.89 +/- 0.22 and an average recovery of KG1a of 63.1 +/- 8.55% (n = 10). In contrast, the QMS system produced an average log(10) depletion of T cells of 3.98 +/- 0.33 (n = 16) with a corresponding average recovery of 57.9 +/- 16.6% of the spiked CD34+ cells. The aforementioned QMS performance values were obtained using sorting speeds ranging from 2.5 x 10(4) to 1.7 x 10(5) cells per second. It is suggested that the lack of a 100% recovery of the unlabeled KG1a cells is the result of a previously reported "drafting" phenomena which pulls unlabeled cells in the direction of the magnetically labeled cells thereby resulting in loss of the unlabeled cells.
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Affiliation(s)
- Oscar Lara
- Department of Chemical and Biomolecular Engineering, The Ohio State University, 120 Koffolt Laboratories, 140 W. 19th Avenue, Columbus, 43210, USA
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21
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Iwasaki H, Kawamoto A, Ishikawa M, Oyamada A, Nakamori S, Nishimura H, Sadamoto K, Horii M, Matsumoto T, Murasawa S, Shibata T, Suehiro S, Asahara T. Dose-dependent contribution of CD34-positive cell transplantation to concurrent vasculogenesis and cardiomyogenesis for functional regenerative recovery after myocardial infarction. Circulation 2006; 113:1311-25. [PMID: 16534028 DOI: 10.1161/circulationaha.105.541268] [Citation(s) in RCA: 216] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Multilineage developmental capacity of the CD34+ cells, especially into cardiomyocytes and smooth muscle cells (SMCs), is still controversial. In the present study we performed a series of experiments to prove our hypothesis that vasculogenesis and cardiomyogenesis after myocardial infarction (MI) may be dose-dependently enhanced after CD34+ cell transplantation. METHODS AND RESULTS Peripheral blood CD34+ cells were isolated from total mononuclear cells of patients with limb ischemia by apheresis after 5-day administration of granulocyte colony-stimulating factor. PBS and 1x10(3) (low), 1x10(5) (mid), or 5x10(5) (high) CD34+ cells were intramyocardially transplanted after ligation of the left anterior descending coronary artery of nude rats. Functional assessments with the use of echocardiography and a microtip conductance catheter at day 28 revealed dose-dependent preservation of left ventricular function by CD34+ cell transplantation. Necropsy examination disclosed dose-dependent augmentation of capillary density and dose-dependent inhibition of left ventricular fibrosis. Immunohistochemistry for human-specific brain natriuretic peptide demonstrated that human cardiomyocytes were dose-dependently observed in ischemic myocardium at day 28 (high, 2480+/-149; mid, 1860+/-141; low, 423+/-9; PBS, 0+/-0/mm2; P<0.05 for high versus mid and mid versus low). Immunostaining for smooth muscle actin and human leukocyte antigen or Ulex europaeus lectin type 1 also revealed dose-dependent vasculogenesis by endothelial cell and SMC development after CD34+ cell transplantation. Reverse transcriptase-polymerase chain reaction indicated that human-specific gene expression of cardiomyocyte (brain natriuretic peptide, cardiac troponin-I, myosin heavy chain, and Nkx 2.5), SMC (smooth muscle actin and sm22alpha), and endothelial cell (CD31 and KDR) markers were dose-dependently augmented in MI tissue. CONCLUSIONS Human CD34+ cell transplantation may have significant and dose-dependent potential for vasculogenesis and cardiomyogenesis with functional recovery from MI.
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Affiliation(s)
- Hiroto Iwasaki
- Stem Cell Translational Research, Kobe Institute of Biomedical Research and Innovation/RIKEN Center for Developmental Biology, Kobe, Japan
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Grigull L, Beilken A, Lücke T, Sander A, Das A, Schrappe M, Welte K, Burmeister HP, Sykora KW. Blutstammzelltransplantation bei Mukopolysaccharidose Typ 1H (Morbus Hurler). Monatsschr Kinderheilkd 2006. [DOI: 10.1007/s00112-004-0965-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Corti P, Peters C, Balduzzi A, Bertagnolio B, Biondi A, Bugarin C, Dassi M, Furlan F, Gaipa G, Longoni D, Maglia O, Parini R, Perseghin P, Uderzo C, Uziel G, Masera G, Rovelli A. Reconstitution of lymphocyte subpopulations in children with inherited metabolic storage diseases after haematopoietic cell transplantation. Br J Haematol 2005; 130:249-55. [PMID: 16029453 DOI: 10.1111/j.1365-2141.2005.05585.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We prospectively evaluated the reconstitution of lymphocyte subpopulations in nine children with lysosomal diseases who underwent 11 allogeneic haematopoietic cell transplants (HCTs) following CD34(+) immunomagnetic enrichment, limited T-cell addback and in vivo B-cell depletion. Absolute lymphocyte count recovery was slow to cross the 5th percentile, occurring at a median of 10 months after HCT in patients with full chimaerism. Natural killer cells represented up to 90% of the total lymphoid population during the first 3 months. CD4(+) lymphocyte recovery occurred 9-18 months after HCT. In most patients, CD8(+) lymphocyte recovery was slow and comparable with that of CD4(+) lymphocytes. The CD4(+)/CD8(+) ratio normalised by 3-7 months after HCT in 50% of the patients. CD8(+) lymphocyte recovery was enhanced in patients with viral reactivation. Reconstitution of B-lymphocytes was particularly delayed in patients treated with rituximab. Declining chimaerism, rejection and viral reactivation were the most common problems in our series. Because of the unique graft manipulation, the pace of lymphocyte reconstitution was particularly slow, suggesting that these patients are at a significantly increased risk of infections for up to 2 years after HCT.
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Affiliation(s)
- Paola Corti
- Clinica Pediatrica, Università di Milano-Bicocca, Ospedale San Gerardo, Monza, Italy
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25
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Lang P, Bader P, Schumm M, Feuchtinger T, Einsele H, Führer M, Weinstock C, Handgretinger R, Kuci S, Martin D, Niethammer D, Greil J. Transplantation of a combination of CD133+ and CD34+ selected progenitor cells from alternative donors. Br J Haematol 2004; 124:72-9. [PMID: 14675410 DOI: 10.1046/j.1365-2141.2003.04747.x] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Positive selected haematopoietic stem cells are increasingly used for allogeneic transplantation with the CD34 antigen employed in most separation techniques. However, the recently described pentaspan molecule CD133 appears to be a marker of more primitive haematopoietic progenitors. Here we report our experience with a new CD133-based selection method in 10 paediatric patients with matched unrelated (n = 2) or mismatched-related donors (n = 8). These patients received a combination of stem cells (median = 29.3 x 10(6)/kg), selected with either anti-CD34 or anti-CD133 coated microbeads. The proportion of CD133+ selected cells was gradually increased from patient to patient from 10% to 100%. Comparison of CD133+ and CD34+ separation procedures revealed similar purity and recovery of target populations but a lower depletion of T cells by CD133+ selection (3.7 log vs. 4.1 log, P < 0.001). Both separation procedures produced >90% CD34+/CD133+ double positive target cells. Engraftment occurred in all patients (sustained primary, n = 8; after reconditioning, n = 2). No primary acute graft versus host disease (GvHD) >/= grade II or chronic GvHD was observed. The patients showed a rapid platelet recovery (median time to independence from substitution = 13.5 d), whereas T cell regeneration was variable. Five patients are alive with a median follow-up of 10 months. Our data demonstrates the feasibility of CD133+ selection for transplantation from alternative donors and encourages further trials with total CD133+ separated grafts.
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Affiliation(s)
- Peter Lang
- Children's University Hospital, University of Tuebingen, Tuebingen, Germany.
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Shaw PJ, Bleakley M. CD34 selection for bone marrow transplants for children with genetic diseases. Bone Marrow Transplant 2003; 33:351; author reply 353. [PMID: 14676786 DOI: 10.1038/sj.bmt.1704351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Bueren JA, Guenechea G, Casado JA, Lamana ML, Segovia JC. Genetic modification of hematopoietic stem cells: recent advances in the gene therapy of inherited diseases. Arch Med Res 2003; 34:589-99. [PMID: 14734099 DOI: 10.1016/j.arcmed.2003.09.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hematopoietic stem cells constitute a rare population of precursor cells with remarkable properties for being used as targets in gene therapy protocols. The last years have been particularly productive both in the fields of gene therapy and stem cell biology. Results from ongoing clinical trials have shown the first unquestionable clinical benefits of immunodeficient patients transplanted with genetically modified autologous stem cells. On the other hand, severe side effects in a few patients treated with gene therapy have also been reported, indicating the usefulness of further improving the vectors currently used in gene therapy clinical trials. In the field of stem cell biology, evidence showing the plastic potential of adult hematopoietic stem cells and data indicating the multipotency of adult mesenchymal precursor cells have been presented. Also, the generation of embryonic stem cells by means of nuclear transfer techniques has appeared as a new methodology with direct implications in gene therapy.
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Affiliation(s)
- Juan A Bueren
- Hematopoietic Gene Therapy Program, Comisión Interministerial de Ciencia y Tecnología/Fundación Marcelino Botín, Madrid, Spain.
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