1
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Franklin RJM, Bodini B, Goldman SA. Remyelination in the Central Nervous System. Cold Spring Harb Perspect Biol 2024; 16:a041371. [PMID: 38316552 PMCID: PMC10910446 DOI: 10.1101/cshperspect.a041371] [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: 02/07/2024]
Abstract
The inability of the mammalian central nervous system (CNS) to undergo spontaneous regeneration has long been regarded as a central tenet of neurobiology. However, while this is largely true of the neuronal elements of the adult mammalian CNS, save for discrete populations of granule neurons, the same is not true of its glial elements. In particular, the loss of oligodendrocytes, which results in demyelination, triggers a spontaneous and often highly efficient regenerative response, remyelination, in which new oligodendrocytes are generated and myelin sheaths are restored to denuded axons. Yet remyelination in humans is not without limitation, and a variety of demyelinating conditions are associated with sustained and disabling myelin loss. In this work, we will (1) review the biology of remyelination, including the cells and signals involved; (2) describe when remyelination occurs and when and why it fails, including the consequences of its failure; and (3) discuss approaches for therapeutically enhancing remyelination in demyelinating diseases of both children and adults, both by stimulating endogenous oligodendrocyte progenitor cells and by transplanting these cells into demyelinated brain.
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Affiliation(s)
- Robin J M Franklin
- Altos Labs Cambridge Institute of Science, Cambridge CB21 6GH, United Kingdom
| | - Benedetta Bodini
- Sorbonne Université, Paris Brain Institute, CNRS, INSERM, Paris 75013, France
- Saint-Antoine Hospital, APHP, Paris 75012, France
| | - Steven A Goldman
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, New York 14642, USA
- University of Copenhagen Faculty of Medicine, Copenhagen 2200, Denmark
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2
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Andrade da Silva LH, Heuer RA, Roque CB, McGuire TL, Hosoya T, Kimura H, Tamura K, Matsuoka AJ. Enhanced survival of hypoimmunogenic otic progenitors following intracochlear xenotransplantation: repercussions for stem cell therapy in hearing loss models. Stem Cell Res Ther 2023; 14:83. [PMID: 37046329 PMCID: PMC10099643 DOI: 10.1186/s13287-023-03304-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 03/28/2023] [Indexed: 04/14/2023] Open
Abstract
Stem cell replacement holds the potential for sensorineural hearing loss (SNHL) treatment. However, its translation into clinical practice requires strategies for improving stem cell survival following intracochlear transplantation. Considering recent findings showing that the inner ear contains a resident population of immune cells, we hypothesized that immune evasion would improve the survival and residence time of transplanted stem cells in the cochlea, potentially leading to better outcomes. To test this, we leveraged genetic engineering techniques to develop hypoimmunogenic human-induced pluripotent stem cells (hi-iPSC), which lack human leukocyte antigen expression. We found that gene editing does not affect the biological properties of hi-iPSCs, including their capacity to differentiate into otic neural progenitors (ONPs). Compared to wild-type ONPs, more hypoimmunogenic ONPs (derived from hi-iPSCs) were found in the inner ear of immunocompetent mice ten days following cochlear xenotransplantation. This approach may open a new avenue for experimental and clinical SNHL treatments.
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Affiliation(s)
- Luisa H Andrade da Silva
- Department of Otolaryngology and Head and Neck Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Rachel A Heuer
- Department of Otolaryngology and Head and Neck Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Christian B Roque
- Department of Otolaryngology and Head and Neck Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Tammy L McGuire
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | | | | | - Kouichi Tamura
- Kobe Research Institute, HEALIOS K.K., Kobe, Hyogo, Japan
| | - Akihiro J Matsuoka
- Department of Otolaryngology and Head and Neck Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
- Roxelyn and Richard Pepper Department of Communication Sciences and Disorders, School of Communication, Northwestern University, Evanston, IL, USA.
- Hugh Knowles Center for Clinical and Basic Science in Hearing and Its Disorders, Evanston, IL, USA.
- Center for Advanced Regenerative Engineering, Northwestern University, Evanston, IL, USA.
- Department of Otolaryngology and Head and Neck Surgery, University of California San Diego, 9444 Medical Center Drive, MC7895, La Jolla, CA, 92037, USA.
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3
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Rosser AE, Busse ME, Gray WP, Badin RA, Perrier AL, Wheelock V, Cozzi E, Martin UP, Salado-Manzano C, Mills LJ, Drew C, Goldman SA, Canals JM, Thompson LM. Translating cell therapies for neurodegenerative diseases: Huntington's disease as a model disorder. Brain 2022; 145:1584-1597. [PMID: 35262656 PMCID: PMC9166564 DOI: 10.1093/brain/awac086] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/29/2022] [Accepted: 02/06/2022] [Indexed: 11/17/2022] Open
Abstract
There has been substantial progress in the development of regenerative medicine strategies for CNS disorders over the last decade, with progression to early clinical studies for some conditions. However, there are multiple challenges along the translational pipeline, many of which are common across diseases and pertinent to multiple donor cell types. These include defining the point at which the preclinical data are sufficiently compelling to permit progression to the first clinical studies; scaling-up, characterization, quality control and validation of the cell product; design, validation and approval of the surgical device; and operative procedures for safe and effective delivery of cell product to the brain. Furthermore, clinical trials that incorporate principles of efficient design and disease-specific outcomes are urgently needed (particularly for those undertaken in rare diseases, where relatively small cohorts are an additional limiting factor), and all processes must be adaptable in a dynamic regulatory environment. Here we set out the challenges associated with the clinical translation of cell therapy, using Huntington's disease as a specific example, and suggest potential strategies to address these challenges. Huntington's disease presents a clear unmet need, but, importantly, it is an autosomal dominant condition with a readily available gene test, full genetic penetrance and a wide range of associated animal models, which together mean that it is a powerful condition in which to develop principles and test experimental therapeutics. We propose that solving these challenges in Huntington's disease would provide a road map for many other neurological conditions. This white paper represents a consensus opinion emerging from a series of meetings of the international translational platforms Stem Cells for Huntington's Disease and the European Huntington's Disease Network Advanced Therapies Working Group, established to identify the challenges of cell therapy, share experience, develop guidance and highlight future directions, with the aim to expedite progress towards therapies for clinical benefit in Huntington's disease.
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Affiliation(s)
- Anne E Rosser
- Cardiff University Neuroscience and Mental Health Research Institute, Hadyn Ellis Building, Cardiff CF24 4HQ, UK.,Cardiff University Brain Repair Group, School of Biosciences, Life Sciences Building, Cardiff CF10 3AX, UK.,Brain Repair and Intracranial Neurotherapeutics (B.R.A.I.N.) Biomedical Research Unit, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4EP, UK
| | - Monica E Busse
- Cardiff University Centre for Trials Research, College of Biomedical and Life Sciences Cardiff University, 4th Floor Neuadd Meirionnydd, Heath Park, Cardiff CF14 4YS, UK
| | - William P Gray
- Cardiff University Neuroscience and Mental Health Research Institute, Hadyn Ellis Building, Cardiff CF24 4HQ, UK.,Brain Repair and Intracranial Neurotherapeutics (B.R.A.I.N.) Biomedical Research Unit, College of Biomedical and Life Sciences, Cardiff University, Cardiff CF14 4EP, UK.,University Hospital of Wales Healthcare NHS Trust, Department of Neurosurgery, Cardiff CF14 4XW, UK
| | - Romina Aron Badin
- Université Paris-Saclay, CEA, CNRS, Laboratoire des Maladies Neurodégénératives: mécanismes, thérapies, imagerie, 92265 Fontenay-aux-Roses, France.,Université Paris-Saclay, CEA, Molecular Imaging Research Center, 92265 Fontenay-aux-Roses, France
| | - Anselme L Perrier
- Université Paris-Saclay, CEA, CNRS, Laboratoire des Maladies Neurodégénératives: mécanismes, thérapies, imagerie, 92265 Fontenay-aux-Roses, France.,Université Paris-Saclay, CEA, Molecular Imaging Research Center, 92265 Fontenay-aux-Roses, France
| | - Vicki Wheelock
- University of California Davis, Department of Neurology, 95817 Sacramento, CA, USA
| | - Emanuele Cozzi
- Transplant Immunology Unit, Department of Cardiac, Thoracic and Vascular Sciences, Padua University Hospital-Ospedale Giustinianeo, Padova, Italy
| | - Unai Perpiña Martin
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Sciences, and Creatio-Production and Validation Center of Advanced Therapies, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Barcelona, Spain
| | - Cristina Salado-Manzano
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Sciences, and Creatio-Production and Validation Center of Advanced Therapies, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Barcelona, Spain
| | - Laura J Mills
- Cardiff University Centre for Trials Research, College of Biomedical and Life Sciences Cardiff University, 4th Floor Neuadd Meirionnydd, Heath Park, Cardiff CF14 4YS, UK
| | - Cheney Drew
- Cardiff University Centre for Trials Research, College of Biomedical and Life Sciences Cardiff University, 4th Floor Neuadd Meirionnydd, Heath Park, Cardiff CF14 4YS, UK
| | - Steven A Goldman
- Centre for Translational Neuromedicine, University of Rochester, 14642 Rochester, NY, USA.,University of Copenhagen Faculty of Health and Medical Sciences, DK-2200 Kobenhavn, Denmark
| | - Josep M Canals
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Sciences, and Creatio-Production and Validation Center of Advanced Therapies, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Barcelona, Spain
| | - Leslie M Thompson
- University of California Irvine, Department of Psychiatry and Human Behaviour, Department of Neurobiology and Behavior and the Sue and Bill Gross Stem Cell Center, 92697 Irvine, CA, USA
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4
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Cell-based and stem-cell-based treatments for spinal cord injury: evidence from clinical trials. Lancet Neurol 2022; 21:659-670. [DOI: 10.1016/s1474-4422(21)00464-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 11/01/2021] [Accepted: 12/17/2021] [Indexed: 12/22/2022]
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5
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Netsrithong R, Wattanapanitch M. Advances in Adoptive Cell Therapy Using Induced Pluripotent Stem Cell-Derived T Cells. Front Immunol 2021; 12:759558. [PMID: 34650571 PMCID: PMC8505955 DOI: 10.3389/fimmu.2021.759558] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/13/2021] [Indexed: 12/27/2022] Open
Abstract
Adoptive cell therapy (ACT) using chimeric antigen receptor (CAR) T cells holds impressive clinical outcomes especially in patients who are refractory to other kinds of therapy. However, many challenges hinder its clinical applications. For example, patients who undergo chemotherapy usually have an insufficient number of autologous T cells due to lymphopenia. Long-term ex vivo expansion can result in T cell exhaustion, which reduces the effector function. There is also a batch-to-batch variation during the manufacturing process, making it difficult to standardize and validate the cell products. In addition, the process is labor-intensive and costly. Generation of universal off-the-shelf CAR T cells, which can be broadly given to any patient, prepared in advance and ready to use, would be ideal and more cost-effective. Human induced pluripotent stem cells (iPSCs) provide a renewable source of cells that can be genetically engineered and differentiated into immune cells with enhanced anti-tumor cytotoxicity. This review describes basic knowledge of T cell biology, applications in ACT, the use of iPSCs as a new source of T cells and current differentiation strategies used to generate T cells as well as recent advances in genome engineering to produce next-generation off-the-shelf T cells with improved effector functions. We also discuss challenges in the field and future perspectives toward the final universal off-the-shelf immunotherapeutic products.
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Affiliation(s)
- Ratchapong Netsrithong
- Siriraj Center for Regenerative Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Department of Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Methichit Wattanapanitch
- Siriraj Center for Regenerative Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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6
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Goldman SA, Mariani JN, Madsen PM. Glial progenitor cell-based repair of the dysmyelinated brain: Progression to the clinic. Semin Cell Dev Biol 2021; 116:62-70. [PMID: 33414060 DOI: 10.1016/j.semcdb.2020.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 12/09/2020] [Accepted: 12/14/2020] [Indexed: 11/25/2022]
Abstract
Demyelinating disorders of the central white matter are among the most prevalent and disabling conditions in neurology. Since myelin-producing oligodendrocytes comprise the principal cell type deficient or lost in these conditions, their replacement by new cells generated from transplanted bipotential oligodendrocyte-astrocyte progenitor cells has emerged as a therapeutic strategy for a variety of primary dysmyelinating diseases. In this review, we summarize the research and clinical considerations supporting current efforts to bring this treatment approach to patients.
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Affiliation(s)
- Steven A Goldman
- Center for Translational Neuromedicine and the Department of Neurology, University of Rochester Medical Center, Rochester, NY 14642, USA; Center for Translational Neuromedicine, University of Copenhagen Faculty of Health and Medical Science, Denmark; Neuroscience Center, Rigshospitalet, Copenhagen, Denmark.
| | - John N Mariani
- Center for Translational Neuromedicine and the Department of Neurology, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Pernille M Madsen
- Center for Translational Neuromedicine and the Department of Neurology, University of Rochester Medical Center, Rochester, NY 14642, USA; Center for Translational Neuromedicine, University of Copenhagen Faculty of Health and Medical Science, Denmark
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7
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Kuscu C, Kuscu C, Bajwa A, Eason JD, Maluf D, Mas VR. Applications of CRISPR technologies in transplantation. Am J Transplant 2020; 20:3285-3293. [PMID: 32484284 PMCID: PMC8109183 DOI: 10.1111/ajt.16095] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/22/2020] [Accepted: 05/19/2020] [Indexed: 01/25/2023]
Abstract
In transplantation, the ever-increasing number of an organ's demand and long-term graft dysfunction constitute some of the major problems. Therefore, alternative solutions to increase the quantity and quality of the organ supply for transplantation are desired. On this subject, revolutionary Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) technology holds enormous potential for the scientific community with its expanding toolbox. In this minireview, we summarize the history and mechanism of CRISPR/Cas9 systems and explore its potential applications in cellular- and organ-level transplantation. The last part of this review includes future opportunities as well as the challenges in the transplantation field.
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Affiliation(s)
- Cem Kuscu
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Science Center, Memphis, TN
| | - Canan Kuscu
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Science Center, Memphis, TN
| | - Amandeep Bajwa
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Science Center, Memphis, TN
| | - James D. Eason
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Science Center, Memphis, TN
| | - Daniel Maluf
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Science Center, Memphis, TN
| | - Valeria R. Mas
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Science Center, Memphis, TN
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8
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Guzman-Genuino RM, Hayball JD, Diener KR. Regulatory B Cells: Dark Horse in Pregnancy Immunotherapy? J Mol Biol 2020; 433:166596. [PMID: 32693108 DOI: 10.1016/j.jmb.2020.07.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 12/20/2022]
Abstract
There are many unanswered questions surrounding the function of immune cells and how they interact with the reproductive system to support successful pregnancy or contribute to pregnancy pathologies. While the role of immune cells such as uterine natural killer and dendritic cells, and more recently regulatory T cells has been established, the role of another major immune cell population, the B cell, and particularly the regulatory B cells, is relatively poorly understood. This review outlines what is known about B-cell subsets in the context of pregnancy, what constitutes a regulatory B cell and what role they may play, particularly during early pregnancy. Lastly, we discuss why immunotherapies for the treatment of pregnancy disorders is not widely progressed clinically and speculate on the potential of functional regulatory B cells as the basis of novel immunotherapeutic approaches for the treatment of immune-based pregnancy pathologies.
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Affiliation(s)
- Ruth Marian Guzman-Genuino
- Experimental Therapeutics Laboratory, University of South Australia Cancer Research Institute, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - John D Hayball
- Experimental Therapeutics Laboratory, University of South Australia Cancer Research Institute, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia; Robinson Research Institute and Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Kerrilyn R Diener
- Experimental Therapeutics Laboratory, University of South Australia Cancer Research Institute, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia; Robinson Research Institute and Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia.
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9
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Kadyk LC, Okamura RM, Talib S. Enabling allogeneic therapies: CIRM-funded strategies for immune tolerance and immune evasion. Stem Cells Transl Med 2020; 9:959-964. [PMID: 32585084 PMCID: PMC7445020 DOI: 10.1002/sctm.20-0079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/02/2020] [Accepted: 05/18/2020] [Indexed: 12/24/2022] Open
Abstract
A major goal for the field of regenerative medicine is to enable the safe and durable engraftment of allogeneic tissues and organs. In contrast to autologous therapies, allogeneic therapies can be produced for many patients, thus reducing costs and increasing availability. However, the need to overcome strong immune system barriers to engraftment poses a significant biological challenge to widespread adoption of allogeneic therapies. While the use of powerful immunosuppressant drugs has enabled the engraftment of lifesaving organ transplants, these drugs have serious side effects and often the organ is eventually rejected by the recipient immune system. Two conceptually different strategies have emerged to enable durable engraftment of allogeneic therapies in the absence of immune suppression. One strategy is to induce immune tolerance of the transplant, either by creating “mixed chimerism” in the hematopoietic system, or by retraining the immune system using modified thymic epithelial cells. The second strategy is to evade the immune system altogether, either by engineering the donor tissue to be “invisible” to the immune system, or by sequestering the donor tissue in an immune impermeable barrier. We give examples of research funded by the California Institute for Regenerative Medicine (CIRM) in each of these areas, ranging from early discovery‐stage work through clinical trials. The advancements that are being made in this area hold promise that many more patients will be able to benefit from regenerative medicine therapies in the future.
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Affiliation(s)
- Lisa C Kadyk
- California Institute for Regenerative Medicine, Oakland, California, USA
| | - Ross M Okamura
- California Institute for Regenerative Medicine, Oakland, California, USA
| | - Sohel Talib
- California Institute for Regenerative Medicine, Oakland, California, USA
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10
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Shin S, Song EY, Kwon YW, Oh S, Park H, Kim NH, Roh EY. Usefulness of the Hematopoietic Stem Cell Donor Pool as a Source of HLA-Homozygous Induced Pluripotent Stem Cells for Haplobanking: Combined Analysis of the Cord Blood Inventory and Bone Marrow Donor Registry. Biol Blood Marrow Transplant 2020; 26:e202-e208. [PMID: 32439474 DOI: 10.1016/j.bbmt.2020.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/24/2020] [Accepted: 05/10/2020] [Indexed: 12/22/2022]
Abstract
Induced pluripotent stem cells (iPSCs) have opened up unprecedented opportunities for novel therapeutic options for precision medicine. Hematopoietic stem cell (HSC) donor pools with previously determined HLA types may be ideal sources for iPSC production. Based on the HLA distribution of cryopreserved cord blood units (CBUs) and registered bone marrow (BM) donors, we estimated how much of the Korean population could be covered by HLA-homozygous iPSCs. We analyzed a total of 143,866 Korean HSC donors (27,904 CBUs and 115,962 BM donors). Each donor sample was typed for the HLA-A, -B, and -DRB1 alleles at low to intermediate resolution by DNA-based molecular techniques: PCR sequence-specific oligonucleotide (PCR-SSOP), PCR with sequence-specific primers (PCR-SSP) and PCR with sequence-based typing (PCR-SBT). We also identified individuals possessing homozygous HLA haplotypes by direct counting. The matching probabilities for zero-mismatch transplantation were calculated for 143,866 Koreans and 50 million potential Korean patients. Among the HSC donor pool, 17 HLA-A alleles, 41 HLA-B alleles, and 13 HLA-DRB1 alleles, as well as 128 homozygous HLA-A-B-DRB1 haplotypes, were identified at serologic equivalents, and those haplotypes cumulatively matched 93.20% of the 143,866 Korean donors as zero HLA-mismatch iPSC sources. Among the combinations of 2,056 haplotypes with frequencies ≥ 0.001% in a population of 50 million, those 128 homozygous haplotypes can provide 93.65% coverage for potential Korean recipients. Haplobanking of a reasonable number of HLA-A, -B, and -DRB1 homozygous iPSC lines derived from CBUs and cells of registered BM donors may be an efficient option for allogenic iPSC therapy.
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Affiliation(s)
- Sue Shin
- Department of Laboratory Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea; Seoul Metropolitan Government Public Cord Blood Bank-ALLCORD, Seoul, Republic of Korea; Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eun Young Song
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yoo-Wook Kwon
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sohee Oh
- Department of Biostatistics, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Hyunwoong Park
- Department of Laboratory Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea; Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Nam-Hee Kim
- Department of Laboratory Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea; Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eun Youn Roh
- Department of Laboratory Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea; Seoul Metropolitan Government Public Cord Blood Bank-ALLCORD, Seoul, Republic of Korea; Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
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11
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Price-Evans A. Looking back at 2019 in Regenerative Medicine. Regen Med 2020; 15:1155-1159. [PMID: 32157951 DOI: 10.2217/rme-2020-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Adam Price-Evans
- Managing Editor, Future Science Group, Unitec House, 2 Albert Place, London N3 1QB, UK
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