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Ye J, Bates N, Soteriou D, Grady L, Edmond C, Ross A, Kerby A, Lewis PA, Adeniyi T, Wright R, Poulton KV, Lowe M, Kimber SJ, Brison DR. High quality clinical grade human embryonic stem cell lines derived from fresh discarded embryos. Stem Cell Res Ther 2017; 8:128. [PMID: 28583200 PMCID: PMC5460457 DOI: 10.1186/s13287-017-0561-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/05/2017] [Accepted: 04/11/2017] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Human embryonic stem cells (hESCs) hold tremendous promise for cell replacement therapies for a range of degenerative diseases. In order to provide cost-effective treatments affordable by public health systems, HLA-matched allogeneic tissue banks of the highest quality clinical-grade hESCs will be required. However only a small number of existing hESC lines are suitable for clinical use; they are limited by moral and ethical concerns and none of them apply Good Manufacturing Practice (GMP) standards to the earliest and critical stages of gamete and embryo procurement. We thus aimed to derive new clinical grade hESC lines of highest quality from fresh surplus GMP grade human embryos. METHODS A comprehensive screen was performed for suitable combinations of culture media with supporting feeder cells or feeder-free matrix, at different stages, to support expansion of the inner cell mass and to establish new hESC lines. RESULTS We developed a novel two-step and sequential media system of clinical-grade hESC derivation and successfully generated seven new hESC lines of widely varying HLA type, carefully screened for genetic health, from human embryos donated under the highest ethical and moral standards under an integrated GMP system which extends from hESC banking all the way back to gamete and embryo procurement. CONCLUSIONS The present study, for the first time, reports the successful derivation of highest-quality clinical-grade hESC lines from fresh poor-quality surplus human embryos generated in a GMP-grade IVF laboratory. The availability of hESC lines of this status represents an important step towards more widespread application of regenerative medicine therapies.
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Affiliation(s)
- Jinpei Ye
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
- North West Embryonic Stem Cell Centre, Central Manchester University Hospitals NHS Foundation Trust and University of Manchester, Oxford Road, Manchester, M13 9WL UK
- Present Address: Institute of Biomedical Sciences, Shanxi University, Taiyuan, China
| | - Nicola Bates
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
- North West Embryonic Stem Cell Centre, Central Manchester University Hospitals NHS Foundation Trust and University of Manchester, Oxford Road, Manchester, M13 9WL UK
| | - Despina Soteriou
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
- North West Embryonic Stem Cell Centre, Central Manchester University Hospitals NHS Foundation Trust and University of Manchester, Oxford Road, Manchester, M13 9WL UK
| | - Lisa Grady
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
- North West Embryonic Stem Cell Centre, Central Manchester University Hospitals NHS Foundation Trust and University of Manchester, Oxford Road, Manchester, M13 9WL UK
| | - Clare Edmond
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
- North West Embryonic Stem Cell Centre, Central Manchester University Hospitals NHS Foundation Trust and University of Manchester, Oxford Road, Manchester, M13 9WL UK
| | - Alex Ross
- Department of Reproductive Medicine, Old St Mary’s Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Oxford Road, Manchester, M13 9PW UK
- North West Embryonic Stem Cell Centre, Central Manchester University Hospitals NHS Foundation Trust and University of Manchester, Oxford Road, Manchester, M13 9WL UK
| | - Alan Kerby
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
| | - Philip A. Lewis
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
| | - Tope Adeniyi
- Department of Reproductive Medicine, Old St Mary’s Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Oxford Road, Manchester, M13 9PW UK
| | - Ronnie Wright
- Genomic Diagnostics Laboratory, Manchester Centre for Genomic Medicine, Saint Mary’s Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Oxford Rd, Manchester, M13 9WL UK
| | - Kay V. Poulton
- Transplantation Laboratory, Manchester Royal Infirmary, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
| | - Marcus Lowe
- Transplantation Laboratory, Manchester Royal Infirmary, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
| | - Susan J. Kimber
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
- North West Embryonic Stem Cell Centre, Central Manchester University Hospitals NHS Foundation Trust and University of Manchester, Oxford Road, Manchester, M13 9WL UK
| | - Daniel R. Brison
- Department of Reproductive Medicine, Old St Mary’s Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Oxford Road, Manchester, M13 9PW UK
- Maternal and Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, 46 Grafton Street, Manchester, M13 9NT UK
- North West Embryonic Stem Cell Centre, Central Manchester University Hospitals NHS Foundation Trust and University of Manchester, Oxford Road, Manchester, M13 9WL UK
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2
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De Sousa P, Downie J, Tye B, Bruce K, Dand P, Dhanjal S, Serhal P, Harper J, Turner M, Bateman M. Development and production of good manufacturing practice grade human embryonic stem cell lines as source material for clinical application. Stem Cell Res 2016; 17:379-390. [DOI: 10.1016/j.scr.2016.08.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 08/19/2016] [Indexed: 01/16/2023] Open
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3
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De Sousa P, Tye B, Sneddon S, Bruce K, Dand P, Russell G, Collins D, Greenshields A, McDonald K, Bradburn H, Gardner J, Downie J, Courtney A, Brison D. Derivation of the human embryonic stem cell line RCM1. Stem Cell Res 2016; 16:476-80. [DOI: 10.1016/j.scr.2015.12.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 12/23/2015] [Indexed: 11/24/2022] Open
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4
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Epsztejn-Litman S, Cohen-Hadad Y, Aharoni S, Altarescu G, Renbaum P, Levy-Lahad E, Schonberger O, Eldar-Geva T, Zeligson S, Eiges R. Establishment of Homozygote Mutant Human Embryonic Stem Cells by Parthenogenesis. PLoS One 2015; 10:e0138893. [PMID: 26473610 PMCID: PMC4608834 DOI: 10.1371/journal.pone.0138893] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 09/04/2015] [Indexed: 01/07/2023] Open
Abstract
We report on the derivation of a diploid 46(XX) human embryonic stem cell (HESC) line that is homozygous for the common deletion associated with Spinal muscular atrophy type 1 (SMA) from a pathenogenetic embryo. By characterizing the methylation status of three different imprinted loci (MEST, SNRPN and H19), monitoring the expression of two parentally imprinted genes (SNRPN and H19) and carrying out genome-wide SNP analysis, we provide evidence that this cell line was established from the activation of a mutant oocyte by diploidization of the entire genome. Therefore, our SMA parthenogenetic HESC (pHESC) line provides a proof-of-principle for the establishment of diseased HESC lines without the need for gene manipulation. As mutant oocytes are easily obtained and readily available during preimplantation genetic diagnosis (PGD) cycles, this approach should provide a powerful tool for disease modelling and is especially advantageous since it can be used to induce large or complex mutations in HESCs, including gross DNA alterations and chromosomal rearrangements, which are otherwise hard to achieve.
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Affiliation(s)
- Silvina Epsztejn-Litman
- Stem Cell Research Laboratory, Shaare Zedek Medical Center affiliated with the Hebrew University School of Medicine, Jerusalem, Israel
| | - Yaara Cohen-Hadad
- Stem Cell Research Laboratory, Shaare Zedek Medical Center affiliated with the Hebrew University School of Medicine, Jerusalem, Israel
| | - Shira Aharoni
- Stem Cell Research Laboratory, Shaare Zedek Medical Center affiliated with the Hebrew University School of Medicine, Jerusalem, Israel
| | - Gheona Altarescu
- Zohar PGD Lab, Medical Genetics Institute, Shaare Zedek Medical Center affiliated with the Hebrew University School of Medicine, Jerusalem, Israel
| | - Paul Renbaum
- Zohar PGD Lab, Medical Genetics Institute, Shaare Zedek Medical Center affiliated with the Hebrew University School of Medicine, Jerusalem, Israel
| | - Ephrat Levy-Lahad
- Zohar PGD Lab, Medical Genetics Institute, Shaare Zedek Medical Center affiliated with the Hebrew University School of Medicine, Jerusalem, Israel
| | - Oshrat Schonberger
- IVF Unit, Shaare Zedek Medical Center affiliated with the Hebrew University School of Medicine, Jerusalem, Israel
| | - Talia Eldar-Geva
- IVF Unit, Shaare Zedek Medical Center affiliated with the Hebrew University School of Medicine, Jerusalem, Israel
| | - Sharon Zeligson
- Zohar PGD Lab, Medical Genetics Institute, Shaare Zedek Medical Center affiliated with the Hebrew University School of Medicine, Jerusalem, Israel
| | - Rachel Eiges
- Stem Cell Research Laboratory, Shaare Zedek Medical Center affiliated with the Hebrew University School of Medicine, Jerusalem, Israel
- * E-mail:
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5
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Pells S, Koutsouraki E, Morfopoulou S, Valencia-Cadavid S, Tomlinson SR, Kalathur R, Futschik ME, De Sousa PA. Novel Human Embryonic Stem Cell Regulators Identified by Conserved and Distinct CpG Island Methylation State. PLoS One 2015; 10:e0131102. [PMID: 26151932 PMCID: PMC4495055 DOI: 10.1371/journal.pone.0131102] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 05/27/2015] [Indexed: 12/21/2022] Open
Abstract
Human embryonic stem cells (hESCs) undergo epigenetic changes in vitro which may compromise function, so an epigenetic pluripotency “signature” would be invaluable for line validation. We assessed Cytosine-phosphate-Guanine Island (CGI) methylation in hESCs by genomic DNA hybridisation to a CGI array, and saw substantial variation in CGI methylation between lines. Comparison of hESC CGI methylation profiles to corresponding somatic tissue data and hESC mRNA expression profiles identified a conserved hESC-specific methylation pattern associated with expressed genes. Transcriptional repressors and activators were over-represented amongst genes whose associated CGIs were methylated or unmethylated specifically in hESCs, respectively. Knockdown of candidate transcriptional regulators (HMGA1, GLIS2, PFDN5) induced differentiation in hESCs, whereas ectopic expression in fibroblasts modulated iPSC colony formation. Chromatin immunoprecipitation confirmed interaction between the candidates and the core pluripotency transcription factor network. We thus identify novel pluripotency genes on the basis of a conserved and distinct epigenetic configuration in human stem cells.
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Affiliation(s)
- Steve Pells
- MRC Centre for Regenerative Medicine, School of Clinical Studies, University of Edinburgh, Edinburgh, EH16 4SB, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, EH16 4SB, United Kingdom
- * E-mail: (PDS); (SP)
| | - Eirini Koutsouraki
- MRC Centre for Regenerative Medicine, School of Clinical Studies, University of Edinburgh, Edinburgh, EH16 4SB, United Kingdom
| | - Sofia Morfopoulou
- MRC Centre for Regenerative Medicine, School of Clinical Studies, University of Edinburgh, Edinburgh, EH16 4SB, United Kingdom
| | - Sara Valencia-Cadavid
- MRC Centre for Regenerative Medicine, School of Clinical Studies, University of Edinburgh, Edinburgh, EH16 4SB, United Kingdom
| | - Simon R. Tomlinson
- MRC Centre for Regenerative Medicine, School of Clinical Studies, University of Edinburgh, Edinburgh, EH16 4SB, United Kingdom
| | - Ravi Kalathur
- Centre for Molecular and Structural Biomedicine, University of Algarve, 8005–139, Faro, Portugal
| | - Matthias E. Futschik
- Centre for Molecular and Structural Biomedicine, University of Algarve, 8005–139, Faro, Portugal
| | - Paul A. De Sousa
- MRC Centre for Regenerative Medicine, School of Clinical Studies, University of Edinburgh, Edinburgh, EH16 4SB, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, EH16 4SB, United Kingdom
- * E-mail: (PDS); (SP)
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Palakkan AA, Drummond R, Anderson RA, Greenhough S, Tv K, Hay DC, Ross JA. Polarisation and functional characterisation of hepatocytes derived from human embryonic and mesenchymal stem cells. Biomed Rep 2015; 3:626-636. [PMID: 26405536 DOI: 10.3892/br.2015.480] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 05/28/2015] [Indexed: 02/06/2023] Open
Abstract
Adult hepatocytes are polarised with their apical and basolateral membranes separated from neighbouring cells by tight junction proteins. Although efficient differentiation of pluripotent stem cells to hepatocytes has been achieved, the formation of proper polarisation in these cells has not been thoroughly investigated. In the present study, human embryonic stem cells (hESCs) and human mesenchymal stem cells (hMSCs) were differentiated to hepatocyte-like cells and the derived hepatocytes were characterised for mature hepatocyte markers. The secretion of hepatic proteins, expression of hepatic genes and the functional hepatic polarisation of stem cell-derived hepatocytes, foetal hepatocytes and the HepG2 hepatic cell line were evaluated and the different lines were compared. The results indicate that hESC-derived hepatocytes are phenotypically more robust and functionally more efficient compared with the hMSC-derived hepatocytes, suggesting their suitability for toxicity studies.
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Affiliation(s)
- Anwar Azad Palakkan
- Tissue Injury and Repair Group, MRC Centre for Regenerative Medicine, The Chancellor's Building, University of Edinburgh, Edinburgh EH16 4SB, Scotland, UK ; Tissue Culture Laboratory, Division of Implant Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala 695012, India
| | - Robert Drummond
- Tissue Injury and Repair Group, MRC Centre for Regenerative Medicine, The Chancellor's Building, University of Edinburgh, Edinburgh EH16 4SB, Scotland, UK
| | - Richard Alexander Anderson
- MRC Centre for Reproductive Health, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, Scotland, UK
| | - Sebastian Greenhough
- MRC Centre for Regenerative Medicine, SCRM Building, Edinburgh BioQuarter, University of Edinburgh, Edinburgh EH16 4UU, Scotland, UK
| | - Kumary Tv
- Tissue Culture Laboratory, Division of Implant Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala 695012, India
| | - David Colin Hay
- MRC Centre for Regenerative Medicine, SCRM Building, Edinburgh BioQuarter, University of Edinburgh, Edinburgh EH16 4UU, Scotland, UK
| | - James Alexander Ross
- Tissue Injury and Repair Group, MRC Centre for Regenerative Medicine, The Chancellor's Building, University of Edinburgh, Edinburgh EH16 4SB, Scotland, UK ; MRC Centre for Regenerative Medicine, SCRM Building, Edinburgh BioQuarter, University of Edinburgh, Edinburgh EH16 4UU, Scotland, UK
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7
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Hansen A, Mjoseng HK, Zhang R, Kalloudis M, Koutsos V, de Sousa PA, Bradley M. High-density polymer microarrays: identifying synthetic polymers that control human embryonic stem cell growth. Adv Healthc Mater 2014; 3:848-53. [PMID: 24353271 DOI: 10.1002/adhm.201300489] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 10/21/2013] [Indexed: 01/22/2023]
Abstract
The fabrication of high-density polymer microarray is described, allowing the simultaneous and efficient evaluation of more than 7000 different polymers in a single-cellular-based screen. These high-density polymer arrays are applied in the search for synthetic substrates for hESCs culture. Up-scaling of the identified hit polymers enables long-term cellular cultivation and promoted successful stem-cell maintenance.
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Affiliation(s)
- Anne Hansen
- School of Chemistry; University of Edinburgh, King's Buildings; West Mains Road Edinburgh EH9 3JJ UK
| | - Heidi K. Mjoseng
- MRC Centre for Regenerative Medicine; SCRM Building, The University of Edinburgh, Edinburgh bioQuarter; 5 Little France Drive Edinburgh EH16 4UU UK
| | - Rong Zhang
- School of Materials Science and Engineering; Changzhou University; Jiangsu Province 213164 China
| | - Michail Kalloudis
- School of Engineering; University of Edinburgh; King's Buildings Edinburgh EH9 3JL UK
| | - Vasileios Koutsos
- School of Engineering; University of Edinburgh; King's Buildings Edinburgh EH9 3JL UK
| | - Paul A. de Sousa
- MRC Centre for Regenerative Medicine; SCRM Building, The University of Edinburgh, Edinburgh bioQuarter; 5 Little France Drive Edinburgh EH16 4UU UK
| | - Mark Bradley
- School of Chemistry; University of Edinburgh, King's Buildings; West Mains Road Edinburgh EH9 3JJ UK
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8
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How should we assess the safety of IVF technologies? Reprod Biomed Online 2013; 27:710-21. [DOI: 10.1016/j.rbmo.2013.09.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 05/03/2013] [Accepted: 09/05/2013] [Indexed: 11/22/2022]
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9
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A thermoresponsive and chemically defined hydrogel for long-term culture of human embryonic stem cells. Nat Commun 2013; 4:1335. [PMID: 23299885 PMCID: PMC3562446 DOI: 10.1038/ncomms2341] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Accepted: 11/28/2012] [Indexed: 01/22/2023] Open
Abstract
Cultures of human embryonic stem cell typically rely on protein matrices or feeder cells to support attachment and growth, while mechanical, enzymatic or chemical cell dissociation methods are used for cellular passaging. However, these methods are ill defined, thus introducing variability into the system, and may damage cells. They also exert selective pressures favouring cell aneuploidy and loss of differentiation potential. Here we report the identification of a family of chemically defined thermoresponsive synthetic hydrogels based on 2-(diethylamino)ethyl acrylate, which support long-term human embryonic stem cell growth and pluripotency over a period of 2–6 months. The hydrogels permitted gentle, reagent-free cell passaging by virtue of transient modulation of the ambient temperature from 37 to 15 °C for 30 min. These chemically defined alternatives to currently used, undefined biological substrates represent a flexible and scalable approach for improving the definition, efficacy and safety of human embryonic stem cell culture systems for research, industrial and clinical applications. To transfer cultured human embryonic stem cells (hESCs) between culture dishes, cells need to be released using mechanical, enzymatic or chemical means, which can damage cells. Zhang et al. describe a thermomodulatable hydrogel that allows gentle, reagent-free cell passaging for the long-term culture of hESCs.
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10
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Shaw L, Sneddon SF, Zeef L, Kimber SJ, Brison DR. Global gene expression profiling of individual human oocytes and embryos demonstrates heterogeneity in early development. PLoS One 2013; 8:e64192. [PMID: 23717564 PMCID: PMC3661520 DOI: 10.1371/journal.pone.0064192] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 04/10/2013] [Indexed: 11/19/2022] Open
Abstract
Early development in humans is characterised by low and variable embryonic viability, reflected in low fecundity and high rates of miscarriage, relative to other mammals. Data from assisted reproduction programmes provides additional evidence that this is largely mediated at the level of embryonic competence and is highly heterogeneous among embryos. Understanding the basis of this heterogeneity has important implications in a number of areas including: the regulation of early human development, disorders of pregnancy, assisted reproduction programmes, the long term health of children which may be programmed in early development, and the molecular basis of pluripotency in human stem cell populations. We have therefore investigated global gene expression profiles using polyAPCR amplification and microarray technology applied to individual human oocytes and 4-cell and blastocyst stage embryos. In order to explore the basis of any variability in detail, each developmental stage is replicated in triplicate. Our data show that although transcript profiles are highly stage-specific, within each stage they are relatively variable. We describe expression of a number of gene families and pathways including apoptosis, cell cycle and amino acid metabolism, which are variably expressed and may be reflective of embryonic developmental competence. Overall, our data suggest that heterogeneity in human embryo developmental competence is reflected in global transcript profiles, and that the vast majority of existing human embryo gene expression data based on pooled oocytes and embryos need to be reinterpreted.
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Affiliation(s)
- Lisa Shaw
- Faculty of Medical and Human Sciences, University of Manchester, Manchester, United Kingdom
- Department of Reproductive Medicine, Old St Mary’s Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
- Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Sharon F. Sneddon
- Faculty of Medical and Human Sciences, University of Manchester, Manchester, United Kingdom
- Department of Reproductive Medicine, Old St Mary’s Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
- Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Leo Zeef
- Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Susan J. Kimber
- Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Daniel R. Brison
- Faculty of Medical and Human Sciences, University of Manchester, Manchester, United Kingdom
- Department of Reproductive Medicine, Old St Mary’s Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
- * E-mail:
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11
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Tobin SC, Kim K. Confirmation of parthenogenetic identity by recombination signature in human embryonic stem cells. Stem Cells Dev 2013. [PMID: 23186300 DOI: 10.1089/scd.2012.0577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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12
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Ermakov A, Pells S, Freile P, Ganeva VV, Wildenhain J, Bradley M, Pawson A, Millar R, De Sousa PA. A role for intracellular calcium downstream of G-protein signaling in undifferentiated human embryonic stem cell culture. Stem Cell Res 2012; 9:171-84. [DOI: 10.1016/j.scr.2012.06.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 06/01/2012] [Accepted: 06/26/2012] [Indexed: 12/28/2022] Open
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13
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Velugotla S, Pells S, Mjoseng HK, Duffy CRE, Smith S, De Sousa P, Pethig R. Dielectrophoresis based discrimination of human embryonic stem cells from differentiating derivatives. BIOMICROFLUIDICS 2012; 6:44113. [PMID: 24339846 PMCID: PMC3555604 DOI: 10.1063/1.4771316] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Accepted: 11/27/2012] [Indexed: 05/04/2023]
Abstract
Assessment of the dielectrophoresis (DEP) cross-over frequency (f xo), cell diameter, and derivative membrane capacitance (C m) values for a group of undifferentiated human embryonic stem cell (hESC) lines (H1, H9, RCM1, RH1), and for a transgenic subclone of H1 (T8) revealed that hESC lines could not be discriminated on their mean f xo and C m values, the latter of which ranged from 14 to 20 mF/m(2). Differentiation of H1 and H9 to a mesenchymal stem cell-like phenotype resulted in similar significant increases in mean C m values to 41-49 mF/m(2) in both lines (p < 0.0001). BMP4-induced differentiation of RCM1 to a trophoblast cell-like phenotype also resulted in a distinct and significant increase in mean C m value to 28 mF/m(2) (p < 0.0001). The progressive transition to a higher membrane capacitance was also evident after each passage of cell culture as H9 cells transitioned to a mesenchymal stem cell-like state induced by growth on a substrate of hyaluronan. These findings confirm the existence of distinctive parameters between undifferentiated and differentiating cells on which future application of dielectrophoresis in the context of hESC manufacturing can be based.
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Affiliation(s)
- Srinivas Velugotla
- Institute for Integrated Micro and Nano Systems, School of Engineering, The University of Edinburgh, Edinburgh EH9 3JF, United Kingdom
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Kiss R, Bock H, Pells S, Canetta E, Adya AK, Moore AJ, De Sousa P, Willoughby NA. Elasticity of Human Embryonic Stem Cells as Determined by Atomic Force Microscopy. J Biomech Eng 2011; 133:101009. [DOI: 10.1115/1.4005286] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The expansive growth and differentiation potential of human embryonic stem cells (hESCs) make them a promising source of cells for regenerative medicine. However, this promise is off set by the propensity for spontaneous or uncontrolled differentiation to result in heterogeneous cell populations. Cell elasticity has recently been shown to characterize particular cell phenotypes, with undifferentiated and differentiated cells sometimes showing significant differences in their elasticities. In this study, we determined the Young’s modulus of hESCs by atomic force microscopy using a pyramidal tip. Using this method we are able to take point measurements of elasticity at multiple locations on a single cell, allowing local variations due to cell structure to be identified. We found considerable differences in the elasticity of the analyzed hESCs, reflected by a broad range of Young’s modulus (0.05-10 kPa). This surprisingly high variation suggests that elasticity could serve as the basis of a simple and efficient large scale purification/separation technique to discriminate subpopulations of hESCs.
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Affiliation(s)
- Robert Kiss
- Chemical Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Henry Bock
- Chemical Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Steve Pells
- MRC Centre for Regenerative Medicine, College of Medicine and Veterinary Medicine, Edinburgh University, Edinburgh EH16 4SB, U.K
| | - Elisabetta Canetta
- BIONTHE (Bio- and Nano-Technologies for Health and Environment) Center, Division of Biotechnology and Forensic Sciences, School of Contemporary Sciences, University of Abertay Dundee, Dundee DD1 1HG, U.K
| | - Ashok K. Adya
- BIONTHE (Bio- and Nano-Technologies for Health and Environment) Center, Division of Biotechnology and Forensic Sciences, School of Contemporary Sciences, University of Abertay Dundee, Dundee DD1 1HG, U.K
| | - Andrew J. Moore
- Mechanical Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Paul De Sousa
- MRC Centre for Regenerative Medicine, College of Medicine and Veterinary Medicine, Edinburgh University, Edinburgh EH16 4SB, U.K
| | - Nicholas A. Willoughby
- Chemical Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
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Ruzov A, Tsenkina Y, Serio A, Dudnakova T, Fletcher J, Bai Y, Chebotareva T, Pells S, Hannoun Z, Sullivan G, Chandran S, Hay DC, Bradley M, Wilmut I, De Sousa P. Lineage-specific distribution of high levels of genomic 5-hydroxymethylcytosine in mammalian development. Cell Res 2011; 21:1332-42. [PMID: 21747414 PMCID: PMC3193467 DOI: 10.1038/cr.2011.113] [Citation(s) in RCA: 160] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Methylation of cytosine is a DNA modification associated with gene repression. Recently, a novel cytosine modification, 5-hydroxymethylcytosine (5-hmC) has been discovered. Here we examine 5-hmC distribution during mammalian development and in cellular systems, and show that the developmental dynamics of 5-hmC are different from those of 5-methylcytosine (5-mC); in particular 5-hmC is enriched in embryonic contexts compared to adult tissues. A detectable 5-hmC signal appears in pre-implantation development starting at the zygote stage, where the paternal genome is subjected to a genome-wide hydroxylation of 5-mC, which precisely coincides with the loss of the 5-mC signal in the paternal pronucleus. Levels of 5-hmC are high in cells of the inner cell mass in blastocysts, and the modification colocalises with nestin-expressing cell populations in mouse post-implantation embryos. Compared to other adult mammalian organs, 5-hmC is strongly enriched in bone marrow and brain, wherein high 5-hmC content is a feature of both neuronal progenitors and post-mitotic neurons. We show that high levels of 5-hmC are not only present in mouse and human embryonic stem cells (ESCs) and lost during differentiation, as has been reported previously, but also reappear during the generation of induced pluripotent stem cells; thus 5-hmC enrichment correlates with a pluripotent cell state. Our findings suggest that apart from the cells of neuronal lineages, high levels of genomic 5-hmC are an epigenetic feature of embryonic cell populations and cellular pluri- and multi-lineage potency. To our knowledge, 5-hmC represents the first epigenetic modification of DNA discovered whose enrichment is so cell-type specific.
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Affiliation(s)
- Alexey Ruzov
- Wolfson Centre for Stem Cells, Tissue Engineering and Modelling, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
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Sneddon SF, DeSousa PA, Arnesen RE, Lieberman BA, Kimber SJ, Brison DR. Gene expression analysis of a new source of human oocytes and embryos for research and human embryonic stem cell derivation. Fertil Steril 2011; 95:1410-5. [DOI: 10.1016/j.fertnstert.2010.08.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2010] [Revised: 07/29/2010] [Accepted: 08/20/2010] [Indexed: 10/19/2022]
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Krejciova Z, Pells S, Cancellotti E, Freile P, Bishop M, Samuel K, Barclay GR, Ironside JW, Manson JC, Turner ML, De Sousa P, Head MW. Human embryonic stem cells rapidly take up and then clear exogenous human and animal prions in vitro. J Pathol 2011; 223:635-45. [PMID: 21341268 DOI: 10.1002/path.2832] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Revised: 11/15/2010] [Accepted: 11/16/2010] [Indexed: 11/07/2022]
Abstract
Susceptibility to prion infection involves interplay between the prion strain and host genetics, but expression of the host-encoded cellular prion protein is a known prerequisite. Here we consider human embryonic stem cell (hESC) susceptibility by characterizing the genetics and expression of the normal cellular prion protein and by examining their response to acute prion exposure. Seven hESC lines were tested for their prion protein gene codon 129 genotype and this was found to broadly reflect that of the normal population. hESCs expressed prion protein mRNA, but only low levels of prion protein accumulated in self-renewing populations. Following undirected differentiation, up-regulation of prion protein expression occurred in each of the major embryonic lineages. Self-renewing populations of hESCs were challenged with infectious human and animal prions. The exposed cells rapidly and extensively took up this material, but when the infectious source was removed the level and extent of intracellular disease-associated prion protein fell rapidly. In the absence of a sufficiently sensitive test for prions to screen therapeutic cells, and given the continued use of poorly characterized human and animal bioproducts during hESC derivation and cultivation, the finding that hESCs rapidly take up and process abnormal prion protein is provocative and merits further investigation.
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Affiliation(s)
- Zuzana Krejciova
- National CJD Surveillance Unit, School of Molecular and Clinical Medicine (Pathology), University of Edinburgh, Western General Hospital, Edinburgh, UK
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Directed differentiation of human embryonic stem cells toward chondrocytes. Nat Biotechnol 2010; 28:1187-94. [PMID: 20967028 DOI: 10.1038/nbt.1683] [Citation(s) in RCA: 202] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Accepted: 08/23/2010] [Indexed: 12/18/2022]
Abstract
We report a chemically defined, efficient, scalable and reproducible protocol for differentiation of human embryonic stem cells (hESCs) toward chondrocytes. HESCs are directed through intermediate developmental stages using substrates of known matrix proteins and chemically defined media supplemented with exogenous growth factors. Gene expression analysis suggests that the hESCs progress through primitive streak or mesendoderm to mesoderm, before differentiating into a chondrocytic culture comprising cell aggregates. At this final stage, 74% (HUES1 cells) and up to 95-97% (HUES7 and HUES8 cells) express the chondrogenic transcription factor SOX9. The cell aggregates also express cell surface CD44 and aggrecan and deposit a sulfated glycosaminoglycan and cartilage-specific collagen II matrix, but show very low or no expression of genes and proteins associated with nontarget cell types. Our protocol should facilitate studies of chondrocyte differentiation and of cell replacement therapies for cartilage repair.
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Derivation of Man-1 and Man-2 research grade human embryonic stem cell lines. In Vitro Cell Dev Biol Anim 2010; 46:386-94. [DOI: 10.1007/s11626-010-9291-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2009] [Accepted: 01/14/2010] [Indexed: 11/25/2022]
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