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Lau HH, Amirruddin NS, Loo LSW, Chan JW, Iich E, Krishnan VG, Hoon S, Teo AKK. FGFR-mediated ERK1/2 signaling contributes to mesendoderm and definitive endoderm formation in vitro. iScience 2023; 26:107265. [PMID: 37502260 PMCID: PMC10368912 DOI: 10.1016/j.isci.2023.107265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/17/2022] [Accepted: 06/28/2023] [Indexed: 07/29/2023] Open
Abstract
The differentiation of human pluripotent stem cells into the SOX17+ definitive endoderm (DE) germ layer is important for generating tissues for regenerative medicine. Multiple developmental and stem cell studies have demonstrated that Activin/Nodal signaling is the primary driver of definitive endoderm formation. Here, we uncover that the FGF2-FGFR-ERK1/2 signaling contributes to mesendoderm and SOX17+ DE formation. Without ERK1/2 signaling, the Activin/Nodal signaling is insufficient to drive mesendoderm and DE formation. Besides FGF2-FGFR-mediated signaling, IGF1R signaling possibly contributes to the ERK1/2 signaling for DE formation. We identified a temporal relationship between Activin/Nodal-SMAD2 and FGF2-FGFR-ERK1/2 signaling in which Activin/Nodal-SMAD2 participates in the initiation of mesendoderm and DE specification that is followed by increasing activity of FGF2-FGFR-ERK1/2 to facilitate and permit the successful generation of SOX17+ DE. Overall, besides the role of Activin/Nodal signaling for DE formation, our findings shed light on the contribution of ERK1/2 signaling for mesendoderm and DE formation.
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Affiliation(s)
- Hwee Hui Lau
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A∗STAR), Proteos, Singapore, Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Nur Shabrina Amirruddin
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A∗STAR), Proteos, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Larry Sai Weng Loo
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A∗STAR), Proteos, Singapore, Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Jun Wei Chan
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A∗STAR), Proteos, Singapore, Singapore
| | - Elhadi Iich
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A∗STAR), Proteos, Singapore, Singapore
| | | | - Shawn Hoon
- Molecular Engineering Lab, IMCB, Proteos, Singapore, Singapore
| | - Adrian Kee Keong Teo
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A∗STAR), Proteos, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Precision Medicine Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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2
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Yoo DH, Im YS, Oh JY, Gil D, Kim YO. DUSP6 is a memory retention feedback regulator of ERK signaling for cellular resilience of human pluripotent stem cells in response to dissociation. Sci Rep 2023; 13:5683. [PMID: 37029196 PMCID: PMC10082014 DOI: 10.1038/s41598-023-32567-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 03/29/2023] [Indexed: 04/09/2023] Open
Abstract
Cultured human pluripotent stem cells (hPSCs) grow as colonies that require breakdown into small clumps for further propagation. Although cell death mechanism by single-cell dissociation of hPSCs has been well defined, how hPSCs respond to the deadly stimulus and recover the original status remains unclear. Here we show that dissociation of hPSCs immediately activates ERK, which subsequently activates RSK and induces DUSP6, an ERK-specific phosphatase. Although the activation is transient, DUSP6 expression persists days after passaging. DUSP6 depletion using the CRISPR/Cas9 system reveals that DUSP6 suppresses the ERK activity over the long term. Elevated ERK activity by DUSP6 depletion increases both viability of hPSCs after single-cell dissociation and differentiation propensity towards mesoderm and endoderm lineages. These findings provide new insights into how hPSCs respond to dissociation in order to maintain pluripotency.
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Affiliation(s)
- Dae Hoon Yoo
- Division of Intractable Disease Research, Korea National Institute of Health, Osong, Cheongju, 28160, Republic of Korea
| | - Young Sam Im
- Division of Intractable Disease Research, Korea National Institute of Health, Osong, Cheongju, 28160, Republic of Korea
| | - Ji Young Oh
- Division of Intractable Disease Research, Korea National Institute of Health, Osong, Cheongju, 28160, Republic of Korea
| | - Dayeon Gil
- Division of Intractable Disease Research, Korea National Institute of Health, Osong, Cheongju, 28160, Republic of Korea
| | - Yong-Ou Kim
- Division of Intractable Disease Research, Korea National Institute of Health, Osong, Cheongju, 28160, Republic of Korea.
- Center for National Stem Cell and Regenerative Medicine 202, Osongsaengmyung 2-Ro, Heundeok-Gu, Cheongju, Chungcheongbuk-Do, 28160, Republic of Korea.
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3
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Mattis KK, Krentz NAJ, Metzendorf C, Abaitua F, Spigelman AF, Sun H, Ikle JM, Thaman S, Rottner AK, Bautista A, Mazzaferro E, Perez-Alcantara M, Manning Fox JE, Torres JM, Wesolowska-Andersen A, Yu GZ, Mahajan A, Larsson A, MacDonald PE, Davies B, den Hoed M, Gloyn AL. Loss of RREB1 in pancreatic beta cells reduces cellular insulin content and affects endocrine cell gene expression. Diabetologia 2023; 66:674-694. [PMID: 36633628 PMCID: PMC9947029 DOI: 10.1007/s00125-022-05856-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/17/2022] [Indexed: 01/13/2023]
Abstract
AIMS/HYPOTHESIS Genome-wide studies have uncovered multiple independent signals at the RREB1 locus associated with altered type 2 diabetes risk and related glycaemic traits. However, little is known about the function of the zinc finger transcription factor Ras-responsive element binding protein 1 (RREB1) in glucose homeostasis or how changes in its expression and/or function influence diabetes risk. METHODS A zebrafish model lacking rreb1a and rreb1b was used to study the effect of RREB1 loss in vivo. Using transcriptomic and cellular phenotyping of a human beta cell model (EndoC-βH1) and human induced pluripotent stem cell (hiPSC)-derived beta-like cells, we investigated how loss of RREB1 expression and activity affects pancreatic endocrine cell development and function. Ex vivo measurements of human islet function were performed in donor islets from carriers of RREB1 type 2 diabetes risk alleles. RESULTS CRISPR/Cas9-mediated loss of rreb1a and rreb1b function in zebrafish supports an in vivo role for the transcription factor in beta cell mass, beta cell insulin expression and glucose levels. Loss of RREB1 also reduced insulin gene expression and cellular insulin content in EndoC-βH1 cells and impaired insulin secretion under prolonged stimulation. Transcriptomic analysis of RREB1 knockdown and knockout EndoC-βH1 cells supports RREB1 as a novel regulator of genes involved in insulin secretion. In vitro differentiation of RREB1KO/KO hiPSCs revealed dysregulation of pro-endocrine cell genes, including RFX family members, suggesting that RREB1 also regulates genes involved in endocrine cell development. Human donor islets from carriers of type 2 diabetes risk alleles in RREB1 have altered glucose-stimulated insulin secretion ex vivo, consistent with a role for RREB1 in regulating islet cell function. CONCLUSIONS/INTERPRETATION Together, our results indicate that RREB1 regulates beta cell function by transcriptionally regulating the expression of genes involved in beta cell development and function.
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Affiliation(s)
- Katia K Mattis
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Nicole A J Krentz
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- Division of Endocrinology, Department of Pediatrics, Stanford School of Medicine, Stanford University, Stanford, CA, USA
| | - Christoph Metzendorf
- Beijer Laboratory and Department of Immunology, Genetics and Pathology, Uppsala University and SciLifeLab, Uppsala, Sweden
| | - Fernando Abaitua
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Aliya F Spigelman
- Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
- Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada
| | - Han Sun
- Division of Endocrinology, Department of Pediatrics, Stanford School of Medicine, Stanford University, Stanford, CA, USA
| | - Jennifer M Ikle
- Division of Endocrinology, Department of Pediatrics, Stanford School of Medicine, Stanford University, Stanford, CA, USA
| | - Swaraj Thaman
- Division of Endocrinology, Department of Pediatrics, Stanford School of Medicine, Stanford University, Stanford, CA, USA
| | - Antje K Rottner
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - Austin Bautista
- Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
- Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada
| | - Eugenia Mazzaferro
- Beijer Laboratory and Department of Immunology, Genetics and Pathology, Uppsala University and SciLifeLab, Uppsala, Sweden
| | | | - Jocelyn E Manning Fox
- Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
- Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada
| | - Jason M Torres
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | | | - Grace Z Yu
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - Anubha Mahajan
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- Genentech, South San Francisco, CA, USA
| | - Anders Larsson
- Department of Medical Sciences, Clinical Chemistry, Uppsala University, Uppsala, Sweden
| | - Patrick E MacDonald
- Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
- Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada
| | - Benjamin Davies
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Marcel den Hoed
- Beijer Laboratory and Department of Immunology, Genetics and Pathology, Uppsala University and SciLifeLab, Uppsala, Sweden
| | - Anna L Gloyn
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK.
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK.
- Division of Endocrinology, Department of Pediatrics, Stanford School of Medicine, Stanford University, Stanford, CA, USA.
- Oxford NIHR Biomedical Research Centre, Churchill Hospital, Oxford, UK.
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4
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Keller A, Krivec N, Markouli C, Spits C. Measuring Early Germ-Layer Specification Bias in Human Pluripotent Stem Cells. Methods Mol Biol 2022; 2429:57-72. [PMID: 35507155 DOI: 10.1007/978-1-0716-1979-7_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Human pluripotent stem cells have a wide variety of potential applications, ranging from clinical translation to in vitro disease modeling. However, there is significant variation in the potential of individual cell lines to differentiate towards each of the three germ layers as a result of (epi)genetic background, culture conditions, and other factors. We describe here in detail a methodology to evaluate this bias using short directed differentiation towards neuroectoderm, mesendoderm, and definitive endoderm in combination with quantification by RT-qPCR and immunofluorescent stains.
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Affiliation(s)
- Alexander Keller
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, Jette, Belgium
| | - Nuša Krivec
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, Jette, Belgium
| | - Christina Markouli
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, Jette, Belgium
| | - Claudia Spits
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, Jette, Belgium.
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5
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Functional Roles of FGF Signaling in Early Development of Vertebrate Embryos. Cells 2021; 10:cells10082148. [PMID: 34440915 PMCID: PMC8391977 DOI: 10.3390/cells10082148] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/10/2021] [Accepted: 08/18/2021] [Indexed: 02/07/2023] Open
Abstract
Fibroblast growth factors (FGFs) comprise a large family of growth factors, regulating diverse biological processes including cell proliferation, migration, and differentiation. Each FGF binds to a set of FGF receptors to initiate certain intracellular signaling molecules. Accumulated evidence suggests that in early development and adult state of vertebrates, FGFs also play exclusive and context dependent roles. Although FGFs have been the focus of research for therapeutic approaches in cancer, cardiovascular disease, and metabolic syndrome, in this review, we mainly focused on their role in germ layer specification and axis patterning during early vertebrate embryogenesis. We discussed the functional roles of FGFs and their interacting partners as part of the gene regulatory network for germ layer specification, dorsal-ventral (DV), and anterior-posterior (AP) patterning. Finally, we briefly reviewed the regulatory molecules and pharmacological agents discovered that may allow modulation of FGF signaling in research.
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6
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Sustained intrinsic WNT and BMP4 activation impairs hESC differentiation to definitive endoderm and drives the cells towards extra-embryonic mesoderm. Sci Rep 2021; 11:8242. [PMID: 33859268 PMCID: PMC8050086 DOI: 10.1038/s41598-021-87547-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 03/31/2021] [Indexed: 12/13/2022] Open
Abstract
We identified a human embryonic stem cell subline that fails to respond to the differentiation cues needed to obtain endoderm derivatives, differentiating instead into extra-embryonic mesoderm. RNA-sequencing analysis showed that the subline has hyperactivation of the WNT and BMP4 signalling. Modulation of these pathways with small molecules confirmed them as the cause of the differentiation impairment. While activation of WNT and BMP4 in control cells resulted in a loss of endoderm differentiation and induction of extra-embryonic mesoderm markers, inhibition of these pathways in the subline restored its ability to differentiate. Karyotyping and exome sequencing analysis did not identify any changes in the genome that could account for the pathway deregulation. These findings add to the increasing evidence that different responses of stem cell lines to differentiation protocols are based on genetic and epigenetic factors, inherent to the line or acquired during cell culture.
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7
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Dziedzicka D, Tewary M, Keller A, Tilleman L, Prochazka L, Östblom J, Couvreu De Deckersberg E, Markouli C, Franck S, Van Nieuwerburgh F, Spits C, Zandstra PW, Sermon K, Geens M. Endogenous suppression of WNT signalling in human embryonic stem cells leads to low differentiation propensity towards definitive endoderm. Sci Rep 2021; 11:6137. [PMID: 33731744 PMCID: PMC7969605 DOI: 10.1038/s41598-021-85447-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/23/2021] [Indexed: 02/06/2023] Open
Abstract
Low differentiation propensity towards a targeted lineage can significantly hamper the utility of individual human pluripotent stem cell (hPSC) lines in biomedical applications. Here, we use monolayer and micropatterned cell cultures, as well as transcriptomic profiling, to investigate how variability in signalling pathway activity between human embryonic stem cell lines affects their differentiation efficiency towards definitive endoderm (DE). We show that endogenous suppression of WNT signalling in hPSCs at the onset of differentiation prevents the switch from self-renewal to DE specification. Gene expression profiling reveals that this inefficient switch is reflected in NANOG expression dynamics. Importantly, we demonstrate that higher WNT stimulation or inhibition of the PI3K/AKT signalling can overcome the DE commitment blockage. Our findings highlight that redirection of the activity of Activin/NODAL pathway by WNT signalling towards mediating DE fate specification is a vulnerable spot, as disruption of this process can result in poor hPSC specification towards DE.
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Affiliation(s)
- Dominika Dziedzicka
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Mukul Tewary
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada ,grid.13097.3c0000 0001 2322 6764Centre for Stem Cells and Regenerative Medicine, King’s College London, Guy’s Hospital, London, SE1 9RT UK
| | - Alexander Keller
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Laurentijn Tilleman
- grid.5342.00000 0001 2069 7798Laboratory of Pharmaceutical Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Laura Prochazka
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada
| | - Joel Östblom
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada
| | - Edouard Couvreu De Deckersberg
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Christina Markouli
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Silvie Franck
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Filip Van Nieuwerburgh
- grid.5342.00000 0001 2069 7798Laboratory of Pharmaceutical Biotechnology, Ghent University, 9000 Ghent, Belgium
| | - Claudia Spits
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Peter W. Zandstra
- grid.17063.330000 0001 2157 2938Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3E1 Canada ,grid.17091.3e0000 0001 2288 9830Michael Smith Laboratories, University of British Columbia, Vancouver, BC V6T 1Z4 Canada ,grid.17091.3e0000 0001 2288 9830School of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3 Canada
| | - Karen Sermon
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Mieke Geens
- grid.8767.e0000 0001 2290 8069Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium
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8
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Markouli C, Couvreu De Deckersberg E, Regin M, Nguyen HT, Zambelli F, Keller A, Dziedzicka D, De Kock J, Tilleman L, Van Nieuwerburgh F, Franceschini L, Sermon K, Geens M, Spits C. Gain of 20q11.21 in Human Pluripotent Stem Cells Impairs TGF-β-Dependent Neuroectodermal Commitment. Stem Cell Reports 2019; 13:163-176. [PMID: 31178415 PMCID: PMC6627003 DOI: 10.1016/j.stemcr.2019.05.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 05/06/2019] [Accepted: 05/06/2019] [Indexed: 02/06/2023] Open
Abstract
Gain of 20q11.21 is one of the most common recurrent genomic aberrations in human pluripotent stem cells. Although it is known that overexpression of the antiapoptotic gene Bcl-xL confers a survival advantage to the abnormal cells, their differentiation capacity has not been fully investigated. RNA sequencing of mutant and control hESC lines, and a line transgenically overexpressing Bcl-xL, shows that overexpression of Bcl-xL is sufficient to cause most transcriptional changes induced by the gain of 20q11.21. Moreover, the differentially expressed genes in mutant and Bcl-xL overexpressing lines are enriched for genes involved in TGF-β- and SMAD-mediated signaling, and neuron differentiation. Finally, we show that this altered signaling has a dramatic negative effect on neuroectodermal differentiation, while the cells maintain their ability to differentiate to mesendoderm derivatives. These findings stress the importance of thorough genetic testing of the lines before their use in research or the clinic. Bcl-xL overexpression drives the transcriptomic profile of 20q11.21 mutant lines 20q11.21 mutant lines downregulate CHCHD2, a known TGF-β pathway modulator Mutant lines differentially express genes involved in TGF-β and SMAD signaling Mutant lines show impaired ectoderm commitment due to TGF-β signaling deregulation
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Affiliation(s)
- C Markouli
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - E Couvreu De Deckersberg
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - M Regin
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - H T Nguyen
- Center for Molecular Biology, Institute of Research and Development, Duy Tan University, K7/25 Quang Trung, Danang 550000, Vietnam
| | - F Zambelli
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium; Clínica EUGIN, Travessera de les Corts 322, 08029 Barcelona, Spain
| | - A Keller
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - D Dziedzicka
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - J De Kock
- Department of In Vitro Toxicology & Dermato-Cosmetology, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - L Tilleman
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - F Van Nieuwerburgh
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - L Franceschini
- Laboratory of Molecular & Cellular Therapy, Department of Immunology - Physiology, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - K Sermon
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - M Geens
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - C Spits
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Laarbeeklaan 103, 1090 Brussels, Belgium.
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9
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Tauran Y, Poulain S, Lereau-Bernier M, Danoy M, Shinohara M, Segard BD, Kato S, Kido T, Miyajima A, Sakai Y, Plessy C, Leclerc E. Analysis of the transcription factors and their regulatory roles during a step-by-step differentiation of induced pluripotent stem cells into hepatocyte-like cells. Mol Omics 2019; 15:383-398. [DOI: 10.1039/c9mo00122k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Human induced pluripotent stem cells have been investigated through a sequential in vitro step-by-step differentiation into hepatocyte-like cells using nanoCAGE, an original method for promoters, transcription factors, and transcriptome analysis.
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10
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Hashemitabar M, Heidari E. Redefining the signaling pathways from pluripotency to pancreas development: In vitro β-cell differentiation. J Cell Physiol 2018; 234:7811-7827. [PMID: 30480819 DOI: 10.1002/jcp.27736] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 10/22/2018] [Indexed: 02/06/2023]
Abstract
Pancreatic β-cells are destroyed by the immune system, in type 1 diabetes (T1D) and are impaired by glucose insensitivity in type 2 diabetes (T2D). Islet-cells transplantation is a promising therapeutic approach based on in vitro differentiation of pluripotent stem cells (PSCs) to insulin-producing cells (IPCs). According to evolutionary stages in β-cell development, there are several distinct checkpoints; each one has a unique characteristic, including definitive endoderm (DE), primitive gut (PG), posterior foregut (PF), pancreatic epithelium (PE), endocrine precursor (EP), and immature β-cells up to functional β-cells. A better understanding of the gene regulatory networks (GRN) and associated transcription factors in each specific developmental stage, guarantees the achievement of the next successful checkpoints and ensures an efficient β-cell differentiation procedure. The new findings in signaling pathways, related to the development of the pancreas are discussed here, including Wnt, Activin/Nodal, FGF, BMP, retinoic acid (RA), sonic hedgehog (Shh), Notch, and downstream regulators, required for β-cell commitment. We also summarized different approaches in the IPCs protocol to conceptually define a standardized system, leading to the creation of a reproducible method for β-cell differentiation. To normalize blood glucose level in diabetic mice, the replacement therapy in the early differentiation stage, such as EP stages was associated with better outcome when compared with the fully differentiated β-cells' graft.
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Affiliation(s)
- Mahmoud Hashemitabar
- Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Anatomy and Embryology, Faculty of Medicine, Joundishapur University of Medical Sciences, Ahvaz, Iran
| | - Elham Heidari
- Department of Anatomy and Embryology, Faculty of Medicine, Joundishapur University of Medical Sciences, Ahvaz, Iran
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11
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Zambelli F, Mertens J, Dziedzicka D, Sterckx J, Markouli C, Keller A, Tropel P, Jung L, Viville S, Van de Velde H, Geens M, Seneca S, Sermon K, Spits C. Random Mutagenesis, Clonal Events, and Embryonic or Somatic Origin Determine the mtDNA Variant Type and Load in Human Pluripotent Stem Cells. Stem Cell Reports 2018; 11:102-114. [PMID: 29910126 PMCID: PMC6117474 DOI: 10.1016/j.stemcr.2018.05.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 05/10/2018] [Accepted: 05/15/2018] [Indexed: 01/13/2023] Open
Abstract
In this study, we deep-sequenced the mtDNA of human embryonic and induced pluripotent stem cells (hESCs and hiPSCs) and their source cells and found that the majority of variants pre-existed in the cells used to establish the lines. Early-passage hESCs carried few and low-load heteroplasmic variants, similar to those identified in oocytes and inner cell masses. The number and heteroplasmic loads of these variants increased with prolonged cell culture. The study of 120 individual cells of early- and late-passage hESCs revealed a significant diversity in mtDNA heteroplasmic variants at the single-cell level and that the variants that increase during time in culture are always passenger to the appearance of chromosomal abnormalities. We found that early-passage hiPSCs carry much higher loads of mtDNA variants than hESCs, which single-fibroblast sequencing proved pre-existed in the source cells. Finally, we show that these variants are stably transmitted during short-term differentiation.
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Affiliation(s)
- Filippo Zambelli
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels 1090, Belgium; S.I.S.Me.R. Reproductive Medicine Unit, Via Mazzini 12, Bologna 40100, Italy
| | - Joke Mertens
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels 1090, Belgium
| | - Dominika Dziedzicka
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels 1090, Belgium
| | - Johan Sterckx
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, Brussels, Belgium
| | - Christina Markouli
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels 1090, Belgium
| | - Alexander Keller
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels 1090, Belgium
| | | | - Laura Jung
- Institut de Parasitologie et Pathologie Tropicale, EA 7292, Fédérationde Médecine Translationelle, Université de Strasbourg, 3 rue Koeberlé, Strasbourg 67000, France
| | - Stephane Viville
- Institut de Parasitologie et Pathologie Tropicale, EA 7292, Fédérationde Médecine Translationelle, Université de Strasbourg, 3 rue Koeberlé, Strasbourg 67000, France; Laboratoire de Diagnostic Génétique, UF3472-génétique de l'infertilité, Hôpitaux Universitaires de Strasbourg, Strasbourg 67000, France
| | - Hilde Van de Velde
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels 1090, Belgium; Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, Brussels, Belgium
| | - Mieke Geens
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels 1090, Belgium
| | - Sara Seneca
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels 1090, Belgium; Centre for Medical Genetics, UZ Brussel, Laarbeeklaan 101, Brussels, Belgium
| | - Karen Sermon
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels 1090, Belgium
| | - Claudia Spits
- Research Group Reproduction and Genetics, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels 1090, Belgium.
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Transcriptome variations among human embryonic stem cell lines are associated with their differentiation propensity. PLoS One 2018; 13:e0192625. [PMID: 29444173 PMCID: PMC5812638 DOI: 10.1371/journal.pone.0192625] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 01/26/2018] [Indexed: 12/20/2022] Open
Abstract
Human embryonic stem cells (hESCs) have the potential to form any cell type in the body, making them attractive cell sources in drug screening, regenerative medicine, disease and developmental processes modeling. However, not all hESC lines have the equal potency to generate desired cell types in vitro. Significant variations have been observed for the differentiation efficiency of various human ESC lines. The precise underpinning molecular mechanisms are still unclear. In this work, we compared transcriptome variations of four hESC lines H7, HUES1, HUES8 and HUES9. We found that hESC lines have different gene expression profiles, and these differentially expressed genes (DEGs) are significantly enriched in developmental processes, such as ectodermal, mesodermal and endodermal development. The enrichment difference between hESC lines was consistent with its lineage bias. Among these DEGs, some pluripotency factors and genes involved in signaling transduction showed great variations as well. The pleiotropic functions of these genes in controlling hESC identity and early lineage specification, implicated that different hESC lines may utilize distinct balance mechanisms to maintain pluripotent state. When the balance is broken in a certain environment, gene expression variation between them could impact on their different lineage specification behavior.
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Qu S, Yan L, Fang B, Ye S, Li P, Ge S, Wu J, Qu D, Song H. Generation of enhanced definitive endoderm from human embryonic stem cells under an albumin/insulin-free and chemically defined condition. Life Sci 2017; 175:37-46. [DOI: 10.1016/j.lfs.2017.03.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 03/12/2017] [Accepted: 03/21/2017] [Indexed: 12/14/2022]
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14
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Jaroonwitchawan T, Muangchan P, Noisa P. Inhibition of FGF signaling accelerates neural crest cell differentiation of human pluripotent stem cells. Biochem Biophys Res Commun 2016; 481:176-181. [PMID: 27816457 DOI: 10.1016/j.bbrc.2016.10.147] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 10/29/2016] [Indexed: 12/21/2022]
Abstract
Neural crest (NC) is a transient population, arising during embryonic development and capable of differentiating into various somatic cells. The defects of neural crest development leads to neurocristopathy. Several signaling pathways were revealed their significance in NC cell specification. Fibroblast growth factor (FGF) is recognized as an important signaling during NC development, for instance Xenopus and avian; however, its contributions in human species are remained elusive. Here we used human pluripotent stem cells (hPSCs) to investigate the consequences of FGF inhibition during NC cell differentiation. The specific-FGF receptor inhibitor, SU5402, was used in this investigation. The inhibition of FGF did not found to affect the proliferation or death of hPSC-derived NC cells, but promoted hPSCs to commit NC cell fate. NC-specific genes, including PAX3, SLUG, and TWIST1, were highly upregulated, while hPSC genes, such as OCT4, and E-CAD, rapidly reduced upon FGF signaling blockage. Noteworthy, TFAP-2α, a marker of migratory NC cells, abundantly presented in SU5402-induced cells. This accelerated NC cell differentiation could be due to the activation of Notch signaling upon the blockage of ERK1/2 phosphorylation, since NICD was increased by SU5402. Altogether, this study proposed the contributions of FGF signaling in controlling human NC cell differentiation from hPSCs, the crosstalk between FGF and Notch, and might imply to the influences of FGF signaling in neurocristophatic diseases.
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Affiliation(s)
- Thiranut Jaroonwitchawan
- School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Pattamon Muangchan
- School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Parinya Noisa
- School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.
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15
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van de Bunt M, Lako M, Barrett A, Gloyn AL, Hansson M, McCarthy MI, Beer NL, Honoré C. Insights into islet development and biology through characterization of a human iPSC-derived endocrine pancreas model. Islets 2016; 8:83-95. [PMID: 27246810 PMCID: PMC4987020 DOI: 10.1080/19382014.2016.1182276] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Directed differentiation of stem cells offers a scalable solution to the need for human cell models recapitulating islet biology and T2D pathogenesis. We profiled mRNA expression at 6 stages of an induced pluripotent stem cell (iPSC) model of endocrine pancreas development from 2 donors, and characterized the distinct transcriptomic profiles associated with each stage. Established regulators of endodermal lineage commitment, such as SOX17 (log2 fold change [FC] compared to iPSCs = 14.2, p-value = 4.9 × 10(-5)) and the pancreatic agenesis gene GATA6 (log2 FC = 12.1, p-value = 8.6 × 10(-5)), showed transcriptional variation consistent with their known developmental roles. However, these analyses highlighted many other genes with stage-specific expression patterns, some of which may be novel drivers or markers of islet development. For example, the leptin receptor gene, LEPR, was most highly expressed in published data from in vivo-matured cells compared to our endocrine pancreas-like cells (log2 FC = 5.5, p-value = 2.0 × 10(-12)), suggesting a role for the leptin pathway in the maturation process. Endocrine pancreas-like cells showed significant stage-selective expression of adult islet genes, including INS, ABCC8, and GLP1R, and enrichment of relevant GO-terms (e.g. "insulin secretion"; odds ratio = 4.2, p-value = 1.9 × 10(-3)): however, principal component analysis indicated that in vitro-differentiated cells were more immature than adult islets. Integration of the stage-specific expression information with genetic data from T2D genome-wide association studies revealed that 46 of 82 T2D-associated loci harbor genes present in at least one developmental stage, facilitating refinement of potential effector transcripts. Together, these data show that expression profiling in an iPSC islet development model can further understanding of islet biology and T2D pathogenesis.
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Affiliation(s)
- Martijn van de Bunt
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
| | - Majlinda Lako
- Institute of Genetic Medicine, Newcastle University, Newcastle, United Kingdom
| | - Amy Barrett
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
| | - Anna L. Gloyn
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
- Oxford NIHR Biomedical Research Center, Churchill Hospital, Oxford, United Kingdom
| | - Mattias Hansson
- Department of Diabetes Research, Novo Nordisk A/S, Maaloev, Denmark
| | - Mark I. McCarthy
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
- Oxford NIHR Biomedical Research Center, Churchill Hospital, Oxford, United Kingdom
| | - Nicola L. Beer
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
- CONTACT Dr Nicola L Beer Oxford Center for Diabetes Endocrinology & Metabolism, Churchill Hospital, Oxford, OX3 7LE, UK
| | - Christian Honoré
- Department of Islet and Stem Cell Biology, Novo Nordisk A/S, Maaloev, Denmark
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16
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Abdelalim EM, Emara MM. Pluripotent Stem Cell-Derived Pancreatic β Cells: From In Vitro Maturation to Clinical Application. RECENT ADVANCES IN STEM CELLS 2016. [DOI: 10.1007/978-3-319-33270-3_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Tasnim F, Phan D, Toh YC, Yu H. Cost-effective differentiation of hepatocyte-like cells from human pluripotent stem cells using small molecules. Biomaterials 2015; 70:115-25. [PMID: 26310107 DOI: 10.1016/j.biomaterials.2015.08.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 08/01/2015] [Indexed: 12/20/2022]
Abstract
Significant efforts have been invested into the differentiation of stem cells into functional hepatocyte-like cells that can be used for cell therapy, disease modeling and drug screening. Most of these efforts have been concentrated on the use of growth factors to recapitulate developmental signals under in vitro conditions. Using small molecules instead of growth factors would provide an attractive alternative since small molecules are cell-permeable and cheaper than growth factors. We have developed a protocol for the differentiation of human embryonic stem cells into hepatocyte-like cells using a predominantly small molecule-based approach (SM-Hep). This 3 step differentiation strategy involves the use of optimized concentrations of LY294002 and bromo-indirubin-3'-oxime (BIO) for the generation of definitive endoderm; sodium butyrate and dimethyl sulfoxide (DMSO) for the generation of hepatoblasts and SB431542 for differentiation into hepatocyte-like cells. Activin A is the only growth factor required in this protocol. Our results showed that SM-Hep were morphologically and functionally similar or better compared to the hepatocytes derived from the growth-factor induced differentiation (GF-Hep) in terms of expression of hepatic markers, urea and albumin production and cytochrome P450 (CYP1A2 and CYP3A4) activities. Cell viability assays following treatment with paradigm hepatotoxicants Acetaminophen, Chlorpromazine, Diclofenac, Digoxin, Quinidine and Troglitazone showed that their sensitivity to these drugs was similar to human primary hepatocytes (PHHs). Using SM-Hep would result in 67% and 81% cost reduction compared to GF-Hep and PHHs respectively. Therefore, SM-Hep can serve as a robust and cost effective replacement for PHHs for drug screening and development.
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Affiliation(s)
- Farah Tasnim
- Institute of Bioengineering and Nanotechnology, #04-01, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Derek Phan
- Institute of Bioengineering and Nanotechnology, #04-01, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Yi-Chin Toh
- Institute of Bioengineering and Nanotechnology, #04-01, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Hanry Yu
- Institute of Bioengineering and Nanotechnology, #04-01, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University Health System, MD9-03-03, 2 Medical Drive, Singapore 117597, Singapore; NUS Graduate School for Integrative Sciences and Engineering, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore 117576, Singapore; Mechanobiology Institute, T-Labs, #05-01, 5A Engineering Drive 1, Singapore 117411, Singapore; Singapore-MIT Alliance for Research and Technology, 3 Science Drive 2, S16-05-08, Singapore 117543, Singapore; Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, USA.
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Krivega M, Essahib W, Van de Velde H. WNT3 and membrane-associated β-catenin regulate trophectoderm lineage differentiation in human blastocysts. Mol Hum Reprod 2015; 21:711-22. [DOI: 10.1093/molehr/gav036] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 06/22/2015] [Indexed: 12/29/2022] Open
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Krivega M, Geens M, Van de Velde H. CAR expression in human embryos and hESC illustrates its role in pluripotency and tight junctions. Reproduction 2014; 148:531-44. [PMID: 25118298 DOI: 10.1530/rep-14-0253] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Coxsackie virus and adenovirus receptor, CXADR (CAR), is present during embryogenesis and is involved in tissue regeneration, cancer and intercellular adhesion. We investigated the expression of CAR in human preimplantation embryos and embryonic stem cells (hESC) to identify its role in early embryogenesis and differentiation. CAR protein was ubiquitously present during preimplantation development. It was localised in the nucleus of uncommitted cells, from the cleavage stage up to the precursor epiblast, and corresponded with the presence of soluble CXADR3/7 splice variant. CAR was displayed on the membrane, involving in the formation of tight junction at compaction and blastocyst stages in both outer and inner cells, and CAR corresponded with the full-length CAR-containing transmembrane domain. In trophectodermal cells of hatched blastocysts, CAR was reduced in the membrane and concentrated in the nucleus, which correlated with the switch in RNA expression to the CXADR4/7 and CXADR2/7 splice variants. The cells in the outer layer of hESC colonies contained CAR on the membrane and all the cells of the colony had CAR in the nucleus, corresponding with the transmembrane CXADR and CXADR4/7. Upon differentiation of hESC into cells representing the three germ layers and trophoblast lineage, the expression of CXADR was downregulated. We concluded that CXADR is differentially expressed during human preimplantation development. We described various CAR expressions: i) soluble CXADR marking undifferentiated blastomeres; ii) transmembrane CAR related with epithelial-like cell types, such as the trophectoderm (TE) and the outer layer of hESC colonies; and iii) soluble CAR present in TE nuclei after hatching. The functions of these distinct forms remain to be elucidated.
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Affiliation(s)
- M Krivega
- Research Group Reproduction and GeneticsFaculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, BelgiumCentre for Reproductive Medicine (CRG)UZ Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium
| | - M Geens
- Research Group Reproduction and GeneticsFaculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, BelgiumCentre for Reproductive Medicine (CRG)UZ Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium
| | - H Van de Velde
- Research Group Reproduction and GeneticsFaculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, BelgiumCentre for Reproductive Medicine (CRG)UZ Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium Research Group Reproduction and GeneticsFaculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, BelgiumCentre for Reproductive Medicine (CRG)UZ Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium
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20
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Role of BMP signaling in pancreatic progenitor differentiation from human embryonic stem cells. Stem Cell Rev Rep 2014; 9:569-77. [PMID: 23468018 DOI: 10.1007/s12015-013-9435-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Transplantation of pancreatic progenitors derived from human embryonic stem cells (hESCs) is a promising way to treat diabetes. Strategies to obtain the required cell mass would rely on the up scaling of current differentiation protocols, or the proliferation of committed progenitors. We aimed at finding conditions that maintain a proliferating pancreatic progenitor pool and we assessed the role of BMP4 signaling in this process. hESCs were differentiated into PDX1 positive pancreatic progenitor stage following our established protocol with few modifications, and then the progenitor cells were passaged in a defined proliferation medium (PM). During passage, the effect of BMP4 signaling on the differentiation and proliferation of pancreatic progenitors was examined by RT-PCR and immunofluorescence analysis. We found that PDX1 positive pancreatic progenitors proliferated and gained NKX6.1 expression in the PM, whereas they failed to express NKX6.1 if BMP signaling was inhibited with Noggin. In this latter condition, part of the progenitors rather generated pro-endocrine cells denoted by NGN3 and synaptophysin expression. On the contrary, addition of BMP4 to the PM promoted the early derivation of PDX1 and NKX6.1 coexpressing pancreatic progenitors. Our findings are in line with mouse pancreas development, and indicate that BMP4 signaling is required for the derivation and maintenance of hESC-derived PDX1+NKX6.1+ pancreatic progenitors. These results are instructive for guiding the development of an efficient pancreas differentiation protocol in view of diabetes cell replacement therapy.
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Guo S, Mao X, He F, Liu H, Ming L. Activin A supplement in the hESCs culture enhances the endoderm differentiation efficiency. Cell Biol Int 2014; 38:849-56. [PMID: 24604611 DOI: 10.1002/cbin.10274] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Accepted: 02/21/2014] [Indexed: 01/25/2023]
Abstract
Activin A is a critical regulator in human embryonic stem cells (hESCs) maintenance and differentiation. Different concentrations of Activin A affect hESC maintenance and differentiation in different ways. A high concentration favors anterior primitive streak and gives rise to DE if the stimulation persists. hESCs were cultured with and without 10 ng/mL Activin A supplement respectively. The two groups of cells were differentiated into endoderm cells with 100 ng/mL Activin A and other reagents. Microarray-based DNA methylation was analyzed with the Infinium Human Methylation450 BeadChip on these two groups. There was a significant difference in endoderm differentiation efficiency (average efficiency: 71 vs. 58.5%, P < 0.05). hESCs cultured with Activin A supplement had an increased propensity to form definitive endoderm cells in response to Activin A and Wnt signal. Differentially Methylated Regions (DMRs) between these two groups were found. DMRs were related to the stem cell maintenance and gene regulation by peroxisome proliferators via PPARα, indicating that hESCs maintained with Activin A supplement had stronger "stemness."
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Affiliation(s)
- Shuren Guo
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450002, P.R. China
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22
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Mfopou JK, Geeraerts M, Dejene R, Van Langenhoven S, Aberkane A, Van Grunsven LA, Bouwens L. Efficient definitive endoderm induction from mouse embryonic stem cell adherent cultures: a rapid screening model for differentiation studies. Stem Cell Res 2013; 12:166-77. [PMID: 24239964 DOI: 10.1016/j.scr.2013.10.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 10/01/2013] [Accepted: 10/14/2013] [Indexed: 01/19/2023] Open
Abstract
Definitive endoderm (DE) differentiation from mouse embryonic stem cell (mESC) monolayer cultures has been limited by poor cell survival or low efficiency. Recently, a combination of TGFβ and Wnt activation with BMP inhibition improved DE induction in embryoid bodies cultured in suspension. Based on these observations we developed a protocol to efficiently induce DE cells in monolayer cultures of mESCs. We obtained a good cell yield with 54.92% DE induction as shown by Foxa2, Sox17, Cxcr4 and E-Cadherin expression. These DE-cells could be further differentiated into posterior foregut and pancreatic phenotypes using a culture protocol initially developed for human embryonic stem cell (hESC) differentiation. In addition, this mESC-derived DE gave rise to hepatocyte-like cells after exposure to BMP and FGF ligands. Our data therefore indicate a substantial improvement of monolayer DE induction from mESCs and support the concept that differentiation conditions for mESC-derived DE are similar to those for hESCs. As mESCs are easier to maintain and manipulate in culture compared to hESCs, and considering the shorter duration of embryonic development in the mouse, this method of efficient DE induction on monolayer will promote the development of new differentiation protocols to obtain DE-derivatives, like pancreatic beta-cells, for future use in cell replacement therapies.
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Affiliation(s)
- Josué Kunjom Mfopou
- Cell Differentiation Unit, Diabetes Research Center, Vrije Universiteit Brussel, Belgium.
| | - Marloes Geeraerts
- Cell Differentiation Unit, Diabetes Research Center, Vrije Universiteit Brussel, Belgium
| | - Roba Dejene
- Cell Differentiation Unit, Diabetes Research Center, Vrije Universiteit Brussel, Belgium
| | - Stijn Van Langenhoven
- Cell Differentiation Unit, Diabetes Research Center, Vrije Universiteit Brussel, Belgium
| | - Asma Aberkane
- Cell Differentiation Unit, Diabetes Research Center, Vrije Universiteit Brussel, Belgium
| | - Leo A Van Grunsven
- Liver Cell Biology, Department of Cell Biology, Vrije Universiteit Brussel, Belgium
| | - Luc Bouwens
- Cell Differentiation Unit, Diabetes Research Center, Vrije Universiteit Brussel, Belgium
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Mfopou JK, Bouwens L. [Differentiation of pluripotent stem cells into pancreatic lineages]. Med Sci (Paris) 2013; 29:736-43. [PMID: 24005628 DOI: 10.1051/medsci/2013298012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Diabetes mellitus is the leading metabolic disease and represents a major public health concern worldwide. Whereas the transplantation of pancreas donor-derived islets significantly improves the quality of life of diabetic patients who become insulin independent for few years, it can unfortunately be provided only to few patients in an advanced stage of the disease. This situation is related to the severe shortage in pancreas donors and has prompted the hunt for alternative sources of islet cells. Beside many other strategies aiming at producing new beta cells in vitro or in vivo, a particular focus has been on the plupiropent stem cells because of their abundant availability and their extreme plasticity. Progress in understanding small vertebrates embryonic development has tremendously contributed to the design of differentiation strategies applied to pluripotent stem cells. Nowadays, definitive endoderm and pancreatic progenitors can be efficiently induced from human embryonic stem cells and from human induced pluripotent stem cells. Although we are still lacking the knowledge required for deriving functional beta cells in vitro, transplantation experiments have demonstrated that stem cell-derived pancreas progenitors further generate this phenotype in vivo. All these findings gathered during the last decade witness the closer clinical application of pluripotent stem cell progenies in diabetes cell therapy.
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Affiliation(s)
- Josué Kunjom Mfopou
- Unité de différenciation cellulaire, Centre de recherche sur le diabète, Vrije Universiteit Brussel, Bruxelles, Belgique.
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