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Tarunina M, Hernandez D, Kronsteiner-Dobramysl B, Pratt P, Watson T, Hua P, Gullo F, van der Garde M, Zhang Y, Hook L, Choo Y, Watt SM. A Novel High-Throughput Screening Platform Reveals an Optimized Cytokine Formulation for Human Hematopoietic Progenitor Cell Expansion. Stem Cells Dev 2016; 25:1709-1720. [PMID: 27554619 DOI: 10.1089/scd.2016.0216] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The main limitations of hematopoietic cord blood (CB) transplantation, viz, low cell dosage and delayed reconstitution, can be overcome by ex vivo expansion. CB expansion under conventional culture causes rapid cell differentiation and depletion of hematopoietic stem and progenitor cells (HSPCs) responsible for engraftment. In this study, we use combinatorial cell culture technology (CombiCult®) to identify medium formulations that promote CD133+ CB HSPC proliferation while maintaining their phenotypic characteristics. We employed second-generation CombiCult screens that use electrospraying technology to encapsulate CB cells in alginate beads. Our results suggest that not only the combination but also the order of addition of individual components has a profound influence on expansion of specific HSPC populations. Top protocols identified by the CombiCult screen were used to culture human CD133+ CB HSPCs on nanofiber scaffolds and validate the expansion of the phenotypically defined CD34+CD38lo/-CD45RA-CD90+CD49f+ population of hematopoietic stem cells and their differentiation into defined progeny.
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Affiliation(s)
- Marina Tarunina
- 1 Plasticell Ltd. , Stevenage Bioscience Catalyst, Stevenage, United Kingdom
| | - Diana Hernandez
- 1 Plasticell Ltd. , Stevenage Bioscience Catalyst, Stevenage, United Kingdom
| | - Barbara Kronsteiner-Dobramysl
- 2 Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford , Oxford, United Kingdom .,3 Stem Cell Research, NHS Blood and Transplant, Radcliffe Department of Medicine, John Radcliffe Hospital , Oxford, United Kingdom
| | - Philip Pratt
- 4 Department of Surgery and Cancer, Faculty of Medicine, Imperial College London , South Kensington, United Kingdom
| | - Thomas Watson
- 1 Plasticell Ltd. , Stevenage Bioscience Catalyst, Stevenage, United Kingdom
| | - Peng Hua
- 2 Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford , Oxford, United Kingdom .,3 Stem Cell Research, NHS Blood and Transplant, Radcliffe Department of Medicine, John Radcliffe Hospital , Oxford, United Kingdom
| | - Francesca Gullo
- 2 Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford , Oxford, United Kingdom .,3 Stem Cell Research, NHS Blood and Transplant, Radcliffe Department of Medicine, John Radcliffe Hospital , Oxford, United Kingdom
| | - Mark van der Garde
- 2 Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford , Oxford, United Kingdom .,3 Stem Cell Research, NHS Blood and Transplant, Radcliffe Department of Medicine, John Radcliffe Hospital , Oxford, United Kingdom
| | - Youyi Zhang
- 2 Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford , Oxford, United Kingdom .,3 Stem Cell Research, NHS Blood and Transplant, Radcliffe Department of Medicine, John Radcliffe Hospital , Oxford, United Kingdom
| | - Lilian Hook
- 1 Plasticell Ltd. , Stevenage Bioscience Catalyst, Stevenage, United Kingdom
| | - Yen Choo
- 1 Plasticell Ltd. , Stevenage Bioscience Catalyst, Stevenage, United Kingdom
| | - Suzanne M Watt
- 2 Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford , Oxford, United Kingdom .,3 Stem Cell Research, NHS Blood and Transplant, Radcliffe Department of Medicine, John Radcliffe Hospital , Oxford, United Kingdom
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Ilic D. Latest developments in the field of stem cell research and regenerative medicine compiled from publicly available information and press releases from nonacademic institutions 1 April 2016– 31 May 2016. Regen Med 2016. [DOI: 10.2217/rme-2016-0083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Dusko Ilic
- Stem Cell Laboratories, Guy's Assisted Conception Unit, Division of Women's Health, Faculty of Science & Medicine, King's College London, UK
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Nityanandam A, Baldwin KK. Advances in reprogramming-based study of neurologic disorders. Stem Cells Dev 2015; 24:1265-83. [PMID: 25749371 DOI: 10.1089/scd.2015.0044] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The technology to convert adult human non-neural cells into neural lineages, through induced pluripotent stem cells (iPSCs), somatic cell nuclear transfer, and direct lineage reprogramming or transdifferentiation has progressed tremendously in recent years. Reprogramming-based approaches aimed at manipulating cellular identity have enormous potential for disease modeling, high-throughput drug screening, cell therapy, and personalized medicine. Human iPSC (hiPSC)-based cellular disease models have provided proof of principle evidence of the validity of this system. However, several challenges remain before patient-specific neurons produced by reprogramming can provide reliable insights into disease mechanisms or be efficiently applied to drug discovery and transplantation therapy. This review will first discuss limitations of currently available reprogramming-based methods in faithfully and reproducibly recapitulating disease pathology. Specifically, we will address issues such as culture heterogeneity, interline and inter-individual variability, and limitations of two-dimensional differentiation paradigms. Second, we will assess recent progress and the future prospects of reprogramming-based neurologic disease modeling. This includes three-dimensional disease modeling, advances in reprogramming technology, prescreening of hiPSCs and creating isogenic disease models using gene editing.
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Affiliation(s)
- Anjana Nityanandam
- Department of Molecular and Cellular Neuroscience, The Scripps Research Institute, La Jolla, California
| | - Kristin K Baldwin
- Department of Molecular and Cellular Neuroscience, The Scripps Research Institute, La Jolla, California
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