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Pereckova J, Pekarova M, Szamecova N, Hoferova Z, Kamarytova K, Falk M, Perecko T. Nitro-Oleic Acid Inhibits Stemness Maintenance and Enhances Neural Differentiation of Mouse Embryonic Stem Cells via STAT3 Signaling. Int J Mol Sci 2021; 22:ijms22189981. [PMID: 34576143 PMCID: PMC8468660 DOI: 10.3390/ijms22189981] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/19/2021] [Accepted: 09/12/2021] [Indexed: 12/15/2022] Open
Abstract
Nitro-oleic acid (NO2-OA), pluripotent cell-signaling mediator, was recently described as a modulator of the signal transducer and activator of transcription 3 (STAT3) activity. In our study, we discovered new aspects of NO2-OA involvement in the regulation of stem cell pluripotency and differentiation. Murine embryonic stem cells (mESC) or mESC-derived embryoid bodies (EBs) were exposed to NO2-OA or oleic acid (OA) for selected time periods. Our results showed that NO2-OA but not OA caused the loss of pluripotency of mESC cultivated in leukemia inhibitory factor (LIF) rich medium via the decrease of pluripotency markers (NANOG, sex-determining region Y-box 1 transcription factor (SOX2), and octamer-binding transcription factor 4 (OCT4)). The effects of NO2-OA on mESC correlated with reduced phosphorylation of STAT3. Subsequent differentiation led to an increase of the ectodermal marker orthodenticle homolog 2 (Otx2). Similarly, treatment of mESC-derived EBs by NO2-OA resulted in the up-regulation of both neural markers Nestin and β-Tubulin class III (Tubb3). Interestingly, the expression of cardiac-specific genes and beating of EBs were significantly decreased. In conclusion, NO2-OA is able to modulate pluripotency of mESC via the regulation of STAT3 phosphorylation. Further, it attenuates cardiac differentiation on the one hand, and on the other hand, it directs mESC into neural fate.
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Affiliation(s)
- Jana Pereckova
- Institute of Biophysics of the Czech Academy of Sciences, Department of Cell Biology and Radiobiology, Kralovopolska 135, 612 65 Brno, Czech Republic; (M.P.); (N.S.); (Z.H.); (K.K.); (M.F.); (T.P.)
- Correspondence:
| | - Michaela Pekarova
- Institute of Biophysics of the Czech Academy of Sciences, Department of Cell Biology and Radiobiology, Kralovopolska 135, 612 65 Brno, Czech Republic; (M.P.); (N.S.); (Z.H.); (K.K.); (M.F.); (T.P.)
| | - Nikoletta Szamecova
- Institute of Biophysics of the Czech Academy of Sciences, Department of Cell Biology and Radiobiology, Kralovopolska 135, 612 65 Brno, Czech Republic; (M.P.); (N.S.); (Z.H.); (K.K.); (M.F.); (T.P.)
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Zuzana Hoferova
- Institute of Biophysics of the Czech Academy of Sciences, Department of Cell Biology and Radiobiology, Kralovopolska 135, 612 65 Brno, Czech Republic; (M.P.); (N.S.); (Z.H.); (K.K.); (M.F.); (T.P.)
| | - Kristyna Kamarytova
- Institute of Biophysics of the Czech Academy of Sciences, Department of Cell Biology and Radiobiology, Kralovopolska 135, 612 65 Brno, Czech Republic; (M.P.); (N.S.); (Z.H.); (K.K.); (M.F.); (T.P.)
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Martin Falk
- Institute of Biophysics of the Czech Academy of Sciences, Department of Cell Biology and Radiobiology, Kralovopolska 135, 612 65 Brno, Czech Republic; (M.P.); (N.S.); (Z.H.); (K.K.); (M.F.); (T.P.)
| | - Tomas Perecko
- Institute of Biophysics of the Czech Academy of Sciences, Department of Cell Biology and Radiobiology, Kralovopolska 135, 612 65 Brno, Czech Republic; (M.P.); (N.S.); (Z.H.); (K.K.); (M.F.); (T.P.)
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Teino I, Matvere A, Pook M, Varik I, Pajusaar L, Uudeküll K, Vaher H, Trei A, Kristjuhan A, Org T, Maimets T. Impact of AHR Ligand TCDD on Human Embryonic Stem Cells and Early Differentiation. Int J Mol Sci 2020; 21:E9052. [PMID: 33260776 PMCID: PMC7731104 DOI: 10.3390/ijms21239052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/20/2020] [Accepted: 11/26/2020] [Indexed: 12/17/2022] Open
Abstract
Aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor, which mediates the effects of a variety of environmental stimuli in multiple tissues. Recent advances in AHR biology have underlined its importance in cells with high developmental potency, including pluripotent stem cells. Nonetheless, there is little data on AHR expression and its role during the initial stages of stem cell differentiation. The purpose of this study was to investigate the temporal pattern of AHR expression during directed differentiation of human embryonic stem cells (hESC) into neural progenitor, early mesoderm and definitive endoderm cells. Additionally, we investigated the effect of the AHR agonist 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) on the gene expression profile in hESCs and differentiated cells by RNA-seq, accompanied by identification of AHR binding sites by ChIP-seq and epigenetic landscape analysis by ATAC-seq. We showed that AHR is differentially regulated in distinct lineages. We provided evidence that TCDD alters gene expression patterns in hESCs and during early differentiation. Additionally, we identified novel potential AHR target genes, which expand our understanding on the role of this protein in different cell types.
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Affiliation(s)
- Indrek Teino
- Chair of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia; (A.M.); (M.P.); (I.V.); (L.P.); (K.U.); (H.V.); (A.T.); (A.K.); (T.M.)
| | - Antti Matvere
- Chair of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia; (A.M.); (M.P.); (I.V.); (L.P.); (K.U.); (H.V.); (A.T.); (A.K.); (T.M.)
| | - Martin Pook
- Chair of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia; (A.M.); (M.P.); (I.V.); (L.P.); (K.U.); (H.V.); (A.T.); (A.K.); (T.M.)
| | - Inge Varik
- Chair of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia; (A.M.); (M.P.); (I.V.); (L.P.); (K.U.); (H.V.); (A.T.); (A.K.); (T.M.)
| | - Laura Pajusaar
- Chair of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia; (A.M.); (M.P.); (I.V.); (L.P.); (K.U.); (H.V.); (A.T.); (A.K.); (T.M.)
| | - Keyt Uudeküll
- Chair of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia; (A.M.); (M.P.); (I.V.); (L.P.); (K.U.); (H.V.); (A.T.); (A.K.); (T.M.)
| | - Helen Vaher
- Chair of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia; (A.M.); (M.P.); (I.V.); (L.P.); (K.U.); (H.V.); (A.T.); (A.K.); (T.M.)
| | - Annika Trei
- Chair of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia; (A.M.); (M.P.); (I.V.); (L.P.); (K.U.); (H.V.); (A.T.); (A.K.); (T.M.)
| | - Arnold Kristjuhan
- Chair of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia; (A.M.); (M.P.); (I.V.); (L.P.); (K.U.); (H.V.); (A.T.); (A.K.); (T.M.)
| | - Tõnis Org
- Chair of Biotechnology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia;
- Institute of Genomics, University of Tartu, Riia 23b, 51010 Tartu, Estonia
| | - Toivo Maimets
- Chair of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia; (A.M.); (M.P.); (I.V.); (L.P.); (K.U.); (H.V.); (A.T.); (A.K.); (T.M.)
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Fernández M, Pannella M, Baldassarro VA, Flagelli A, Alastra G, Giardino L, Calzà L. Thyroid Hormone Signaling in Embryonic Stem Cells: Crosstalk with the Retinoic Acid Pathway. Int J Mol Sci 2020; 21:E8945. [PMID: 33255695 PMCID: PMC7728128 DOI: 10.3390/ijms21238945] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 12/12/2022] Open
Abstract
While the role of thyroid hormones (THs) during fetal and postnatal life is well-established, their role at preimplantation and during blastocyst development remains unclear. In this study, we used an embryonic stem cell line isolated from rat (RESC) to study the effects of THs and retinoic acid (RA) on early embryonic development during the pre-implantation stage. The results showed that THs play an important role in the differentiation/maturation processes of cells obtained from embryoid bodies (EB), with thyroid hormone nuclear receptors (TR) (TRα and TRβ), metabolic enzymes (deiodinases 1, 2, 3) and membrane transporters (Monocarboxylate transporters -MCT- 8 and 10) being expressed throughout in vitro differentiation until the Embryoid body (EB) stage. Moreover, thyroid hormone receptor antagonist TR (1-850) impaired RA-induced neuroectodermal lineage specification. This effect was significantly higher when cells were treated with retinoic acid (RA) to induce neuroectodermal lineage, studied through the gene and protein expression of nestin, an undifferentiated progenitor marker from the neuroectoderm lineage, as established by nestin mRNA and protein regulation. These results demonstrate the contribution of the two nuclear receptors, TR and RA, to the process of neuroectoderm maturation of the in vitro model embryonic stem cells obtained from rat.
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Affiliation(s)
- Mercedes Fernández
- Department of Veterinary Medical Science, University of Bologna, Via Tolara di Sopra, 50, 40064 Ozzano Emilia, BO, Italy; (M.F.); (L.G.)
| | - Micaela Pannella
- Fondazione IRET, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy;
| | - Vito Antonio Baldassarro
- Interdepartmental Center for Industrial Research in Life Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (V.A.B.); (A.F.); (G.A.)
| | - Alessandra Flagelli
- Interdepartmental Center for Industrial Research in Life Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (V.A.B.); (A.F.); (G.A.)
| | - Giuseppe Alastra
- Interdepartmental Center for Industrial Research in Life Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (V.A.B.); (A.F.); (G.A.)
| | - Luciana Giardino
- Department of Veterinary Medical Science, University of Bologna, Via Tolara di Sopra, 50, 40064 Ozzano Emilia, BO, Italy; (M.F.); (L.G.)
- Fondazione IRET, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy;
| | - Laura Calzà
- Department of Veterinary Medical Science, University of Bologna, Via Tolara di Sopra, 50, 40064 Ozzano Emilia, BO, Italy; (M.F.); (L.G.)
- Fondazione IRET, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy;
- Interdepartmental Center for Industrial Research in Life Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (V.A.B.); (A.F.); (G.A.)
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Lauschke K, Rosenmai AK, Meiser I, Neubauer JC, Schmidt K, Rasmussen MA, Holst B, Taxvig C, Emnéus JK, Vinggaard AM. A novel human pluripotent stem cell-based assay to predict developmental toxicity. Arch Toxicol 2020; 94:3831-3846. [PMID: 32700165 PMCID: PMC7603451 DOI: 10.1007/s00204-020-02856-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/14/2020] [Indexed: 01/12/2023]
Abstract
There is a great need for novel in vitro methods to predict human developmental toxicity to comply with the 3R principles and to improve human safety. Human-induced pluripotent stem cells (hiPSC) are ideal for the development of such methods, because they are easy to retrieve by conversion of adult somatic cells and can differentiate into most cell types of the body. Advanced three-dimensional (3D) cultures of these cells, so-called embryoid bodies (EBs), moreover mimic the early developing embryo. We took advantage of this to develop a novel human toxicity assay to predict chemically induced developmental toxicity, which we termed the PluriBeat assay. We employed three different hiPSC lines from male and female donors and a robust microtiter plate-based method to produce EBs. We differentiated the cells into cardiomyocytes and introduced a scoring system for a quantitative readout of the assay-cardiomyocyte contractions in the EBs observed on day 7. Finally, we tested the three compounds thalidomide (2.3-36 µM), valproic acid (25-300 µM), and epoxiconazole (1.3-20 µM) on beating and size of the EBs. We were able to detect the human-specific teratogenicity of thalidomide and found the rodent toxicant epoxiconazole as more potent than thalidomide in our assay. We conclude that the PluriBeat assay is a novel method for predicting chemicals' adverse effects on embryonic development.
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Affiliation(s)
- Karin Lauschke
- National Food Institute, Technical University of Denmark, Kemitorvet, 2800, Kongens Lyngby, Denmark
- Department for Biotechnology and Biomedicine, Technical University of Denmark, Produktionstorvet, 2800, Kongens Lyngby, Denmark
| | - Anna Kjerstine Rosenmai
- National Food Institute, Technical University of Denmark, Kemitorvet, 2800, Kongens Lyngby, Denmark
| | - Ina Meiser
- Fraunhofer Institute for Biomedical Engineering, Joseph-von-Fraunhofer-Weg 1, 66280, Sulzbach, Germany
| | - Julia Christiane Neubauer
- Fraunhofer Institute for Biomedical Engineering, Joseph-von-Fraunhofer-Weg 1, 66280, Sulzbach, Germany
- Fraunhofer Project Center for Stem Cell Process Engineering, Neunerplatz 2, 97082, Würzburg, Germany
| | - Katharina Schmidt
- Fraunhofer Institute for Biomedical Engineering, Joseph-von-Fraunhofer-Weg 1, 66280, Sulzbach, Germany
| | | | - Bjørn Holst
- Bioneer A/S, Kogle Allé 2, 2970, Hørsholm, Denmark
| | - Camilla Taxvig
- National Food Institute, Technical University of Denmark, Kemitorvet, 2800, Kongens Lyngby, Denmark
| | - Jenny Katarina Emnéus
- Department for Biotechnology and Biomedicine, Technical University of Denmark, Produktionstorvet, 2800, Kongens Lyngby, Denmark
| | - Anne Marie Vinggaard
- National Food Institute, Technical University of Denmark, Kemitorvet, 2800, Kongens Lyngby, Denmark.
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Desai D, Khanna A, Pethe P. PRC1 catalytic unit RING1B regulates early neural differentiation of human pluripotent stem cells. Exp Cell Res 2020; 396:112294. [PMID: 32971117 DOI: 10.1016/j.yexcr.2020.112294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/14/2020] [Accepted: 09/15/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Polycomb group (PcG) proteins are histone modifiers which control gene expression by assembling into large repressive complexes termed - Polycomb repressive complex (PRC); RING1B, core catalytic subunit of PRC1 that performs H2AK119 monoubiquitination leading to gene repression. The role of PRC1 complex during early neural specification in humans is unclear; we have tried to uncover the role of PRC1 in neuronal differentiation using human pluripotent stem cells as an in vitro model. RESULTS We differentiated both human embryonic stem cells (hESCs) and human induced pluripotent stem cells (hiPSCs) towards neural progenitor stage evident from the expression of NESTIN, TUJ1, NCAD, and PAX6. When we checked the total expression of RING1B and BMI1, we saw that they were significantly upregulated in differentiated neural progenitors compared to undifferentiated cells. Further, we used Chromatin Immunoprecipitation coupled with qPCR to determine the localization of RING1B, and the repressive histone modification H2AK119ub1 at the promoters of neuronal specific genes. We observed that RING1B localized to and catalyzed H2AK119ub1 modification at promoters of TUJ1, NCAM, and NESTIN during early differentiation and later RING1B was lost from its promoter leading their expression; while functional RING1B persisted significantly on mature neuronal genes such as IRX3, GSX2, SOX1, NEUROD1 and FOXG1 in neural progenitors. CONCLUSION The results of our study show that PRC1 catalytic component RING1B occupies neuronal gene promoters in human pluripotent stem cells and may prevent their precocious expression. However, when neuronal inductive signals are given, RING1B is not only removed from neuronal gene promoters, but the inhibitory H2AK119ub1 modification is also lost.
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Affiliation(s)
- Divya Desai
- Department of Biological Sciences, NMIMS Sunandan Divatia School of Science, SVKM's NMIMS (deemed to-be University), Mumbai, 56, India
| | - Aparna Khanna
- Department of Biological Sciences, NMIMS Sunandan Divatia School of Science, SVKM's NMIMS (deemed to-be University), Mumbai, 56, India; Centre for Computational Biology & Translational Research, Amity Institute of Biotechnology (AIB), Amity University, Mumbai, India
| | - Prasad Pethe
- Symbiosis Centre for Stem Cell Research (SCSCR), Symbiosis International University (SIU), Lavale, Pune, 15, India.
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Nickolls AR, Lee MM, Zukosky K, Mallon BS, Bönnemann CG. Human embryoid bodies as a 3D tissue model of the extracellular matrix and α-dystroglycanopathies. Dis Model Mech 2020; 13:dmm042986. [PMID: 32423971 PMCID: PMC7328151 DOI: 10.1242/dmm.042986] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 04/30/2020] [Indexed: 12/13/2022] Open
Abstract
The basal lamina is a specialized sheet of dense extracellular matrix (ECM) linked to the plasma membrane of specific cell types in their tissue context, which serves as a structural scaffold for organ genesis and maintenance. Disruption of the basal lamina and its functions is central to many disease processes, including cancer metastasis, kidney disease, eye disease, muscular dystrophies and specific types of brain malformation. The latter three pathologies occur in the α-dystroglycanopathies, which are caused by dysfunction of the ECM receptor α-dystroglycan. However, opportunities to study the basal lamina in various human disease tissues are restricted owing to its limited accessibility. Here, we report the generation of embryoid bodies from human induced pluripotent stem cells that model the basal lamina. Embryoid bodies cultured via this protocol mimic pre-gastrulation embryonic development, consisting of an epithelial core surrounded by a basal lamina and a peripheral layer of ECM-secreting endoderm. In α-dystroglycanopathy patient embryoid bodies, electron and fluorescence microscopy reveal ultrastructural basal lamina defects and reduced ECM accumulation. By starting from patient-derived cells, these results establish a method for the in vitro synthesis of patient-specific basal lamina and recapitulate disease-relevant ECM defects seen in the α-dystroglycanopathies. Finally, we apply this system to evaluate an experimental ribitol supplement therapy on genetically diverse α-dystroglycanopathy patient samples.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Alec R Nickolls
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
- Department of Neuroscience, Brown University, Providence, RI 02912, USA
| | - Michelle M Lee
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Kristen Zukosky
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
- Department of Neuroscience, Brown University, Providence, RI 02912, USA
| | - Barbara S Mallon
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Carsten G Bönnemann
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
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Yoda K, Ohnuki Y, Masui S, Kurosawa H. Optimized conditions for the supplementation of human-induced pluripotent stem cell cultures with a GSK-3 inhibitor during embryoid body formation with the aim of inducing differentiation into mesodermal and cardiac lineage. J Biosci Bioeng 2019; 129:371-378. [PMID: 31615734 DOI: 10.1016/j.jbiosc.2019.09.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/27/2019] [Accepted: 09/21/2019] [Indexed: 01/19/2023]
Abstract
We optimized the conditions for the differentiation of human induced pluripotent stem cells (hiPSCs) into mesoderm lineage-committed cells by supplementing the cultures with CHIR, a selective GSK-3 inhibitor, during embryoid body (EB) formation. In vitro treatment with 4 μM CHIR during the late 2 days of a 4-day suspension culture period was most effective at promoting mesodermal differentiation. The resulting EBs showed a significant increase in the expression levels of mesoderm-associated genes (WNT3A, T, DKK1, GATA4, FOXC1, and MESP1) and a maintenance of OCT3/4 and NANOG expressions. Upon subsequent differentiation into a cardiac cell lineage, these EBs were shown to generate contractile cardiomyocytes. When shortening the CHIR treatment period to 1 day, the resulting EBs showed reduced expression of mesoderm-associated genes in comparison to the 2-day CHIR treatment. In particular, the expression level of FOXC1 in the 1-day CHIR-treated EBs was much lower than that of the 2-day CHIR-treated EBs. When the treatment period with CHIR was extended to 4 days, the resulting EBs presented significantly reduced expression of WNT3A, OCT3/4, and NANOG upon CHIR concentrations above 4 μM. Similarly, when CHIR treatment was conducted after the formation of EBs, the effectiveness of the GSK-3 inhibitor was reduced compared to a treatment performed during EB formation. Our results indicate that spatiotemporal constraints associated with EB formation, i.e., three-dimensional structuration and cell development in EBs, should be taken into account when designing EB formation-based differentiation protocol involving CHIR treatment.
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Affiliation(s)
- Kiyomi Yoda
- Faculty of Life and Environmental Sciences, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
| | - Yoshitsugu Ohnuki
- Faculty of Life and Environmental Sciences, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
| | - Shinji Masui
- Advanced Biotechnology Center, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Hiroshi Kurosawa
- Faculty of Life and Environmental Sciences, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan.
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Liang S, Zhou H, Yin N, Lu Y, Faiola F. Embryoid body-based RNA-seq analyses reveal a potential TBBPA multifaceted developmental toxicity. J Hazard Mater 2019; 376:223-232. [PMID: 31129320 DOI: 10.1016/j.jhazmat.2019.05.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
The frequent detection of tetrabromobisphenol A (TBBPA) in the human body, especially in umbilical cord serum and breast milk, has raised concerns about TBBPA potential effects on embryonic development. The differentiation of embryonic stem cells (ESCs) in vitro can serve as a model for the early stages of embryonic development. In this study, we differentiated mouse ESCs via 3D aggregates called embryoid bodies in presence of environment and human relevant TBPPA concentrations for 28 days. We collected samples at different time points and analyzed TBBPA-dependent global gene expression changes by RNA-seq. Our analyses revealed a potential TBBPA multifaceted developmental toxicity with effects on the nervous and cardiac/skeletal muscle systems. Mechanistically, our findings suggest TBBPA endocrine disrupting activities in part via prolactin signaling.
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Affiliation(s)
- Shaojun Liang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hui Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Nuoya Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuanping Lu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Francesco Faiola
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Wilkinson AC, Ryan DJ, Kucinski I, Wang W, Yang J, Nestorowa S, Diamanti E, Tsang JCH, Wang J, Campos LS, Yang F, Fu B, Wilson N, Liu P, Gottgens B. Expanded potential stem cell media as a tool to study human developmental hematopoiesis in vitro. Exp Hematol 2019; 76:1-12.e5. [PMID: 31326613 PMCID: PMC6859476 DOI: 10.1016/j.exphem.2019.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 07/09/2019] [Accepted: 07/11/2019] [Indexed: 01/05/2023]
Abstract
Pluripotent stem cell (PSC) differentiation in vitro represents a powerful and tractable model to study mammalian development and an unlimited source of cells for regenerative medicine. Within hematology, in vitro PSC hematopoiesis affords novel insights into blood formation and represents an exciting potential approach to generate hematopoietic and immune cell types for transplantation and transfusion. Most studies to date have focused on in vitro hematopoiesis from mouse PSCs and human PSCs. However, differences in mouse and human PSC culture protocols have complicated the translation of discoveries between these systems. We recently developed a novel chemical media formulation, expanded potential stem cell medium (EPSCM), that maintains mouse PSCs in a unique cellular state and extraembryonic differentiation capacity. Herein, we describe how EPSCM can be directly used to stably maintain human PSCs. We further demonstrate that human PSCs maintained in EPSCM can spontaneously form embryoid bodies and undergo in vitro hematopoiesis using a simple differentiation protocol, similar to mouse PSC differentiation. EPSCM-maintained human PSCs generated at least two hematopoietic cell populations, which displayed distinct transcriptional profiles by RNA-sequencing (RNA-seq) analysis. EPSCM also supports gene targeting using homologous recombination, affording generation of an SPI1 (PU.1) reporter PSC line to study and track in vitro hematopoiesis. EPSCM therefore provides a useful tool not only to study pluripotency but also hematopoietic cell specification and developmental-lineage commitment.
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Affiliation(s)
- Adam C Wilkinson
- Department of Haematology, Wellcome & MRC Cambridge Stem Cell Institute, Cambridge, UK
| | - David J Ryan
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - Iwo Kucinski
- Department of Haematology, Wellcome & MRC Cambridge Stem Cell Institute, Cambridge, UK
| | - Wei Wang
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - Jian Yang
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - Sonia Nestorowa
- Department of Haematology, Wellcome & MRC Cambridge Stem Cell Institute, Cambridge, UK
| | - Evangelia Diamanti
- Department of Haematology, Wellcome & MRC Cambridge Stem Cell Institute, Cambridge, UK
| | | | - Juexuan Wang
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - Lia S Campos
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - Fengtang Yang
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - Beiyuan Fu
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - Nicola Wilson
- Department of Haematology, Wellcome & MRC Cambridge Stem Cell Institute, Cambridge, UK
| | - Pentao Liu
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK; School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, Stem Cell and Regenerative Medicine Consortium, University of Hong Kong, Hong Kong, China
| | - Berthold Gottgens
- Department of Haematology, Wellcome & MRC Cambridge Stem Cell Institute, Cambridge, UK.
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10
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Yin N, Liang X, Liang S, Liang S, Yang R, Hu B, Cheng Z, Liu S, Dong H, Liu S, Faiola F. Embryonic stem cell- and transcriptomics-based in vitro analyses reveal that bisphenols A, F and S have similar and very complex potential developmental toxicities. Ecotoxicol Environ Saf 2019; 176:330-338. [PMID: 30951980 DOI: 10.1016/j.ecoenv.2019.03.115] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 03/26/2019] [Accepted: 03/27/2019] [Indexed: 05/25/2023]
Abstract
Bisphenol A (BPA) is a very versatile industrial chemical. Many reports have associated BPA with several health effects. Some bisphenol alternatives have been introduced to replace BPA in its many applications. However, comprehensive toxicological evaluations for these replacements are still lacking. In this study, we examined the potential effects of BPA, bisphenol F (BPF) and bisphenol S (BPS), on embryonic development with an in vitro stem cell toxicology system and transcriptomics analyses. Mouse embryonic stem cells (mESCs) were differentiated via embryoid body formation, either globally towards the three primary germ layers and their lineages, or specifically into neuroectoderm/neural progenitor cells. During the differentiation, cells were treated with BPA, BPF, BPS, or DMSO control. Samples were collected at different time points, for qRT-PCR and RNA-seq analyses. BPA, BPF and BPS disrupted many processes, during mESC global and neural differentiations, in very similar manners. In fact, at each time point the three chemicals differentially regulated analogous gene categories, particularly the ones involved in cell-matrix and cell-cell adhesion, signal transduction pathways, and medical conditions such as cardiovascular diseases and cancer. Our findings demonstrate once more then BPA substitutes may not be very safe. They potentially have a very complex developmental toxicity, similarly to BPA, and seem more toxic than BPA itself. In addition, our results reveal that stem cell-based developmental toxicity assays can be very comprehensive.
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Affiliation(s)
- Nuoya Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoxing Liang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shengxian Liang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shaojun Liang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Renjun Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bowen Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhanwen Cheng
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shuyu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China; Wellcome Trust/CRUK Gurdon Institute, Department of Pathology, University of Cambridge, Cambridge CB2 1QN, UK
| | - Hengzhi Dong
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Francesco Faiola
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
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11
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Lin K, Chen R, Zhang L, Zang D, Geng X, Shen W. Transparent Bioreactors Based on Nanoparticle-Coated Liquid Marbles for in Situ Observation of Suspending Embryonic Body Formation and Differentiation. ACS Appl Mater Interfaces 2019; 11:8789-8796. [PMID: 30511842 DOI: 10.1021/acsami.8b20169] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Transparent liquid marbles coated with hydrophobic silica nanoparticles were used as micro-bioreactors for embryonic stem cell (ESC) culturing. The high transparency of silica liquid marbles enables real-time and in situ monitoring of embryonic body (EB) formation and differentiation. The experimental result shows that ESCs can aggregate with each other close to the bottom of the liquid marble and form EBs, while remaining suspended in the culture media. The differentiation of the suspending EBs into contractile cardiomyocytes has been demonstrated inside the transparent liquid marbles, which enable the in situ microscopic observation. It was also found, through comparison, that ESCs in a bare sessile drop placed on a superhydrophobic substrate tend to anchor onto the substrate and then differentiate following the normal way of cell spreading, i.e., withdrawal from the cell cycle, fusion with nascent myotubes, and final differentiation into cardiomyocytes. In contrast, liquid marble particle shells weaken the adhesion of spherical EBs to the substrate, encouraging them to differentiate in suspension into cardiomyocytes, without anchoring. The results of this study highlight the promising performance of liquid marbles as "one-pot" micro-bioreactors for EB formation and differentiation.
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Affiliation(s)
- Kejun Lin
- Functional Soft Matter & Materials Group, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710129 , China
| | | | - Liyuan Zhang
- National Local Joint Engineering Laboratory for Advanced Textile Processing and Clean Production, Science & Technology Institute , Wuhan Textile University , Jiangxia , Hubei 430200 , China
| | - Duyang Zang
- Functional Soft Matter & Materials Group, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710129 , China
| | - Xingguo Geng
- Functional Soft Matter & Materials Group, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710129 , China
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12
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Warkus ELL, Marikawa Y. Fluoxetine Inhibits Canonical Wnt Signaling to Impair Embryoid Body Morphogenesis: Potential Teratogenic Mechanisms of a Commonly Used Antidepressant. Toxicol Sci 2018; 165:372-388. [PMID: 29893963 PMCID: PMC6154268 DOI: 10.1093/toxsci/kfy143] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Fluoxetine is one of the most commonly prescribed antidepressants in the selective serotonin reuptake inhibitor (SSRI) class. Epidemiologic studies have suggested a link between maternal fluoxetine use during pregnancy and an increased incidence of birth defects. However, the mechanisms by which fluoxetine adversely impacts embryonic developments are unknown. Here, we used the mouse P19C5 embryoid body (EB) as a 3D morphogenesis model to investigate the developmental toxicity of fluoxetine. Morphological and molecular changes in P19C5 EBs replicate the processes of axial elongation and patterning seen in early embryos, and these changes are specifically and sensitively altered by exposure to developmental toxicants. Treatment with fluoxetine, or its major metabolite, norfluoxetine, adversely affected EB morphogenesis at concentrations of 6 µM and above. Treatment with other serotonin reuptake inhibitors or serotonin itself did not impair EB morphogenesis, suggesting that the adverse effects of fluoxetine are independent of serotonin signaling. Gene expression analyses showed that various key developmental regulators were affected by fluoxetine, particularly those involved in mesodermal differentiation. Reporter assays demonstrated that fluoxetine inhibited canonical Wnt signaling, and that the pharmacologic activation of canonical Wnt signaling partially alleviated the morphogenetic effects of fluoxetine. Fluoxetine also exhibited cytostatic effects independently of inhibition of the serotonin transporter or canonical Wnt signaling. These results suggest that the SSRI-independent actions of fluoxetine, namely inhibition of canonical Wnt signaling and reduction of cellular proliferation, are largely responsible for the observed adverse morphogenetic impacts. This study provides mechanistic insight for further investigations on the teratogenicity of fluoxetine.
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Affiliation(s)
- Erica L L Warkus
- Developmental and Reproductive Biology Graduate Program, Institute for Biogenesis Research, University of Hawaii John A. Burns School of Medicine, Honolulu, Hawaii 96813
| | - Yusuke Marikawa
- Developmental and Reproductive Biology Graduate Program, Institute for Biogenesis Research, University of Hawaii John A. Burns School of Medicine, Honolulu, Hawaii 96813
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13
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Arcidiacono OA, Krejčí J, Suchánková J, Bártová E. Deacetylation of Histone H4 Accompanying Cardiomyogenesis is Weakened in HDAC1-Depleted ES Cells. Int J Mol Sci 2018; 19:ijms19082425. [PMID: 30115891 PMCID: PMC6121517 DOI: 10.3390/ijms19082425] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/09/2018] [Accepted: 08/14/2018] [Indexed: 01/13/2023] Open
Abstract
Cell differentiation into cardiomyocytes requires activation of differentiation-specific genes and epigenetic factors that contribute to these physiological processes. This study is focused on the in vitro differentiation of mouse embryonic stem cells (mESCs) induced into cardiomyocytes. The effects of clinically promising inhibitors of histone deacetylases (HDACi) on mESC cardiomyogenesis and on explanted embryonic hearts were also analyzed. HDAC1 depletion caused early beating of cardiomyocytes compared with those of the wild-type (wt) counterpart. Moreover, the adherence of embryonic bodies (EBs) was reduced in HDAC1 double knockout (dn) mESCs. The most important finding was differentiation-specific H4 deacetylation observed during cardiomyocyte differentiation of wt mESCs, while H4 deacetylation was weakened in HDAC1-depleted cells induced to the cardiac pathway. Analysis of the effect of HDACi showed that Trichostatin A (TSA) is a strong hyperacetylating agent, especially in wt mESCs, but only SAHA reduced the size of the beating areas in EBs that originated from HDAC1 dn mESCs. Additionally, explanted embryonic hearts (e15) responded to treatment with HDACi: all of the tested HDACi (TSA, SAHA, VPA) increased the levels of H3K9ac, H4ac, H4K20ac, and pan-acetylated lysines in embryonic hearts. This observation shows that explanted tissue can be maintained in a hyperacetylation state several hours after excision, which appears to be useful information from the view of transplantation strategy and the maintenance of gene upregulation via acetylation in tissue intended for transplantation.
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Affiliation(s)
- Orazio Angelo Arcidiacono
- Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 65, Brno, Czech Republic.
- Faculty of Sciences, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic.
| | - Jana Krejčí
- Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 65, Brno, Czech Republic.
| | - Jana Suchánková
- Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 65, Brno, Czech Republic.
| | - Eva Bártová
- Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 65, Brno, Czech Republic.
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14
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Katayama S, Morii A, Makanga JO, Suzuki T, Miyata N, Inazu T. HDAC8 regulates neural differentiation through embryoid body formation in P19 cells. Biochem Biophys Res Commun 2018; 498:45-51. [PMID: 29499194 DOI: 10.1016/j.bbrc.2018.02.195] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/12/2018] [Accepted: 02/27/2018] [Indexed: 01/26/2023]
Abstract
Histone acetylation and deacetylation correlate with diverse biological phenomena through gene transcription. Histone deacetylases (HDACs) regulate deacetylation of histones and other proteins. However, as a member of the HDAC family, HDAC8 function during neurodevelopment is currently unknown. Therefore, we investigated HDAC8 function during neurodevelopment by examining embryoid body (EB) formation in P19 cells. HDAC8-selective inhibitor (NCC-149) (HDAC8i)-treated cells showed smaller EBs than non-treated cells, as well as reduced expression levels of the neuronal marker, NeuN. Additionally, HDAC8i treatment led to inhibition of cellular proliferation by G2/M phase accumulation and downregulated cyclin A2 and cyclin B1 gene expression. Furthermore, two independent HDAC8 knockout cell lines were established by CRISPR-Cas9, which resulted in smaller EBs, similar to HDAC8i-treated cells. These results suggest that HDAC8 regulates neural differentiation by exerting control of EB formation.
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Affiliation(s)
- Syouichi Katayama
- Department of Pharmacy, College of Pharmaceutical Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Atsushi Morii
- Department of Pharmacy, College of Pharmaceutical Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Juliet O Makanga
- Department of Pharmacy, College of Pharmaceutical Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Takayoshi Suzuki
- Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Sakyo-ku, Kyoto 606-0823, Japan; CREST, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
| | - Naoki Miyata
- Institute of Drug Discovery Science, Nagoya City University, Mizuho-ku, Nagoya 467-8603, Japan
| | - Tetsuya Inazu
- Department of Pharmacy, College of Pharmaceutical Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan.
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15
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Derkach KV, Abraimova OE, Satarova TM. [Not Available]. Tsitol Genet 2017; 51:69-75. [PMID: 30484614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The genotypic features of morphogenesis and regeneration in vitro for five maize inbreds of perspective breeding Lancaster heterotic group compared to representatives of others heterotic groups – PLS61, A188 and Chi31 were studied. It was identified that the ratio of such types of morphogenesis as organogenesis and embryoidogenesis in callus culture was determined by the explant genotype and the concentration of sucrose in the medium for callusogenesis. The frequency of embryoidogenesis as the most effective type of morphogenesis for further regeneration in Lancaster inbreds averaged about 40.0 ± 12.8 %, while for other heterotic groups it was only 14.0 ± 4.0 %. For Lancaster heterotic group sucrose at the concentration of 30 g/l in the medium for callusogenesis provided further regeneration through embryoidogenesis at the level of 26.5 ± 15.4 %, but sucrose at the concentration of 60 g/l provided it at 57.7 ± 19.8 %. For inbreds which represent other heterotic groups sucrose content in the medium for callusogenesis did not affect further regenaration, the level of embryoidogenesis at 30 and 60 g/l sucrose amounted 11.0 ± 7.0 and 15.0 ± 4.8 % correspondingly.
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16
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Abstract
Advances in differentiation of cardiomyocytes from human induced pluripotent stem cell (hiPSC) were emerged as a tool for modeling of cardiovascular disease that recapitulates the phenotype for the purpose of drug screening, biomarker discovery, and testing of single-nucleotide polymorphism (SNP) as a modifier for disease stratification. Here, we describe the (1) retroviral reprogramming strategies in the generation of human iPSC, (2) methodology in characterization of iPSC in order to identify the stem cell clones with the best quality, and (3) protocol of cardiac differentiation by modulation of Wnt signaling and β-catenin pathway.
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Affiliation(s)
- Yee Ki Lee
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - X Ran
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - K W H Lai
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - V Y M Lau
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - D C W Siu
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Research Center of Heart, Brain, Hormone and Healthy Aging, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Shenzhen Institutes of Research and Innovation, University of Hong Kong, Hong Kong, China
- Division of Cardiology, Queen Mary Hospital, Hong Kong, China
| | - H F Tse
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
- Research Center of Heart, Brain, Hormone and Healthy Aging, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
- Shenzhen Institutes of Research and Innovation, University of Hong Kong, Hong Kong, China.
- Hong Kong-Guangdong Joint Laboratory on Stem Cell and Regenerative Medicine, Hong Kong, China.
- Division of Cardiology, Queen Mary Hospital, Hong Kong, China.
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17
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Ahadian S, Zhou Y, Yamada S, Estili M, Liang X, Nakajima K, Shiku H, Matsue T. Graphene induces spontaneous cardiac differentiation in embryoid bodies. Nanoscale 2016; 8:7075-7084. [PMID: 26960413 DOI: 10.1039/c5nr07059g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Graphene was embedded into the structure of mouse embryoid bodies (EBs) using the hanging drop technique. The inclusion of 0.2 mg per mL graphene in the EBs did not affect the viability of the stem cells. However, the graphene decreased the stem cell proliferation, probably by accelerating cell differentiation. The graphene also enhanced the mechanical properties and electrical conductivity of the EBs. Interestingly, the cardiac differentiation of the EB-graphene was significantly greater than that of the EBs at day 5 of culture, as confirmed by high-throughput gene analysis. Electrical stimulation (voltage, 4 V; frequency, 1 Hz; and duration, 10 ms for 2 continuous days) further enhanced the cardiac differentiation of the EBs, as demonstrated by analyses of the cardiac protein and gene expression and the beating activity of the EBs. Taken together, the results demonstrated that graphene played a major role in directing the cardiac differentiation of EBs, which has potential cell therapy and tissue regeneration applications.
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Affiliation(s)
- Samad Ahadian
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada.
| | - Yuanshu Zhou
- WPI-Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - Shukuyo Yamada
- Graduate School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan
| | - Mehdi Estili
- Advanced Ceramics Group, Materials Processing Unit, National Institute for Materials Science (NIMS), Tsukuba 305-0047, Japan
| | - Xiaobin Liang
- WPI-Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - Ken Nakajima
- WPI-Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - Hitoshi Shiku
- Graduate School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan
| | - Tomokazu Matsue
- WPI-Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan. and Graduate School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan
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18
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Vrij EJ, Espinoza S, Heilig M, Kolew A, Schneider M, van Blitterswijk CA, Truckenmüller RK, Rivron NC. 3D high throughput screening and profiling of embryoid bodies in thermoformed microwell plates. Lab Chip 2016; 16:734-742. [PMID: 26775648 DOI: 10.1039/c5lc01499a] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
3D organoids using stem cells to study development and disease are now widespread. These models are powerful to mimic in vivo situations but are currently associated with high variability and low throughput. For biomedical research, platforms are thus necessary to increase reproducibility and allow high-throughput screens (HTS). Here, we introduce a microwell platform, integrated in standard culture plates, for functional HTS. Using micro-thermoforming, we form round-bottom microwell arrays from optically clear cyclic olefin polymer films, and assemble them with bottom-less 96-well plates. We show that embryonic stem cells aggregate faster and more reproducibly (centricity, circularity) as compared to a state-of-the-art microwell array. We then run a screen of a chemical library to direct differentiation into primitive endoderm (PrE) and, using on-chip high content imaging (HCI), we identify molecules, including regulators of the cAMP pathway, regulating tissue size, morphology and PrE gene activity. We propose that this platform will benefit to the systematic study of organogenesis in vitro.
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Affiliation(s)
- E J Vrij
- Merln Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands.
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19
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Abstract
The advent of pluripotent stem cells (PSCs) enabled a multitude of studies for modeling the development of diseases and testing pharmaceutical therapeutic potential in vitro. These PSCs have been differentiated to multiple cell types to demonstrate its pluripotent potential, including cardiomyocytes (CMs). However, the efficiency and efficacy of differentiation vary greatly between different cell lines and methods. Here, we describe two different methods for acquiring CMs from human pluripotent lines. One method involves the generation of embryoid bodies, which emulates the natural developmental process, while the other method chemically activates the canonical Wnt signaling pathway to induce a monolayer of cardiac differentiation.
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Affiliation(s)
| | - Elisa Di Pasquale
- Humanitas Clinical and Research Center, Rozzano, MI, Italy.
- Istituto di Ricerca Genetica e Biomedica, National Research Council of Italy, Milan, Italy.
- C/O Humanitas Clinical and Research Center, Via Manzoni, 56, 20089, Rozzano, MI, Italy.
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20
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Pettinato G, Vanden Berg-Foels WS, Zhang N, Wen X. ROCK inhibitor is not required for embryoid body formation from singularized human embryonic stem cells. PLoS One 2014; 9:e100742. [PMID: 25365581 PMCID: PMC4217711 DOI: 10.1371/journal.pone.0100742] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 05/30/2014] [Indexed: 12/18/2022] Open
Abstract
We report a technology to form human embryoid bodies (hEBs) from singularized human embryonic stem cells (hESCs) without the use of the p160 rho-associated coiled-coil kinase inhibitor (ROCKi) or centrifugation (spin). hEB formation was tested under four conditions: +ROCKi/+spin, +ROCKi/-spin, -ROCKi/+spin, and -ROCKi/-spin. Cell suspensions of BG01V/hOG and H9 hESC lines were pipetted into non-adherent hydrogel substrates containing defined microwell arrays. hEBs of consistent size and spherical geometry can be formed in each of the four conditions, including the -ROCKi/-spin condition. The hEBs formed under the -ROCKi/-spin condition differentiated to develop the three embryonic germ layers and tissues derived from each of the germ layers. This simplified hEB production technique offers homogeneity in hEB size and shape to support synchronous differentiation, elimination of the ROCKi xeno-factor and rate-limiting centrifugation treatment, and low-cost scalability, which will directly support automated, large-scale production of hEBs and hESC-derived cells needed for clinical, research, or therapeutic applications.
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Affiliation(s)
- Giuseppe Pettinato
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia, United States of America
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, United States of America
- Department of Bioengineering, Clemson University, Clemson, South Carolina, United States of America
| | - Wendy S. Vanden Berg-Foels
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia, United States of America
- Department of Bioengineering, Clemson University, Clemson, South Carolina, United States of America
- Department of Craniofacial Biology, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Ning Zhang
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, United States of America
- Department of Bioengineering, Clemson University, Clemson, South Carolina, United States of America
- * E-mail: (NZ); (XW)
| | - Xuejun Wen
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia, United States of America
- Department of Bioengineering, Clemson University, Clemson, South Carolina, United States of America
- Department of Craniofacial Biology, Medical University of South Carolina, Charleston, South Carolina, United States of America
- Institute for Biomedical Engineering and Nano Science (iNANO), Shanghai East Hospital, Tongji Medical School, Tongji University, Shanghai, People's Republic of China
- * E-mail: (NZ); (XW)
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21
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Gao X, Yourick JJ, Sprando RL. Transcriptomic characterization of C57BL/6 mouse embryonic stem cell differentiation and its modulation by developmental toxicants. PLoS One 2014; 9:e108510. [PMID: 25247782 PMCID: PMC4172731 DOI: 10.1371/journal.pone.0108510] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 08/29/2014] [Indexed: 01/05/2023] Open
Abstract
The Tox21 program calls for transforming toxicology testing from traditional in vivo tests to less expensive and higher throughput in vitro methods. In developmental toxicology, a spectrum of alternative methods including cell line based tests has been developed. In particular, embryonic stem cells (ESCs) have received widespread attention as a promising alternative model for developmental toxicity assessment. Here, we characterized gene expression changes during mouse ESC differentiation and their modulation by developmental toxicants. C57BL/6 ESCs were allowed to differentiate spontaneously and RNA of vehicle controls was collected at 0, 24, 48, 72, 96, 120 and 168 h after embryoid body (EB) formation; RNA of compound-exposed EBs were collected at 24 h. Samples were hybridized to Affymetrix Mouse Gene 2.0 ST Array; using stringent cut-off criteria of Bonferroni-adjusted p<0.05 and fold change >2.0, a total of 1996 genes were found differentially expressed among the vehicle controls at different time points. Gene ontology (GO) analysis showed these regulated genes were mostly involved in differentiation-related processes such as development, morphogenesis, metabolism, cell differentiation, cell organization and biogenesis, embryonic development, and reproduction. Biomarkers of all three germ layers or of their derivative early cell types were identified in the gene list. Principal component analysis (PCA) based on these genes showed that the unexposed vehicle controls appeared in chronological order in the PCA plot, and formed a differentiation track when connected. Cultures exposed to thalidomide, monobutyl phthalate, or valproic acid deviated significantly from the differentiation track, manifesting the capacity of the differentiation track to identify the modulating effects of diverse developmental toxicants. The differentiation track defined in this study may be further exploited as a baseline for developmental toxicity testing, with compounds causing significant deviation from the differentiation track being predicted as potential developmental toxicants.
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Affiliation(s)
- Xiugong Gao
- Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, Maryland, United States of America
| | - Jeffrey J. Yourick
- Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, Maryland, United States of America
| | - Robert L. Sprando
- Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, Maryland, United States of America
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22
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Yu S, Yan X, Liu H, Cai X, Cao S, Shen L, Zuo Z, Deng J, Ma X, Wang Y, Ren Z. Improved establishment of embryonic stem (ES) cell lines from the Chinese Kunming mice by hybridization with 129 mice. Int J Mol Sci 2014; 15:3389-402. [PMID: 24573251 PMCID: PMC3975344 DOI: 10.3390/ijms15033389] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 02/10/2014] [Accepted: 02/14/2014] [Indexed: 01/20/2023] Open
Abstract
Chinese Kunming mice (Mus musculus Km), widely used as laboratory animals throughout China, remain very refractory for embryonic stem (ES) cell isolation. The present study was aimed to evaluate the effects of hybridization with 129/Sv mice, and culture media containing fetal bovine serum (FBS) or Knockout serum replacement (KSR) on ES cell isolation from Kunming mice. The results demonstrated that ES cells had been effectively isolated from the hybrid embryos of Kunming and 129/Sv mice using all three media containing 15% FBS, 15% KSR and their mixture of 14% KSR and 1% FBS, individually. These isolated ES cells had maintained in vitro undifferentiated for a long time, exhibiting all features specific for mouse ES cells. In addition, the rates of ES cell isolation in the medium containing 14% KSR and 1% FBS, was 46.67% and significantly higher than those in another two media containing only FBS or KSR (p < 0.05). Contrarily, no ES cell line had been established from Kunming mouse inbred embryos using the same protocols. These results suggested that ES cells with long-term self-renewal ability could be efficiently generated from hybrid embryos of Kunming and 129/Sv mice, and a small volume of FBS was necessary to isolate ES cells in the KSR medium when embryos and early ES cells cultured.
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Affiliation(s)
- Shumin Yu
- College of Veterinary Medicine, Sichuan Agricultural University, Xinkang Road 46#, Yucheng District, Ya'an 625014, Sichuan, China.
| | - Xingrong Yan
- Life Science College, North-West University, Xi'an 710069, Shaanxi, China.
| | - Huanhuan Liu
- College of Veterinary Medicine, Sichuan Agricultural University, Xinkang Road 46#, Yucheng District, Ya'an 625014, Sichuan, China.
| | - Xin Cai
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China.
| | - Suizhong Cao
- College of Veterinary Medicine, Sichuan Agricultural University, Xinkang Road 46#, Yucheng District, Ya'an 625014, Sichuan, China.
| | - Liuhong Shen
- College of Veterinary Medicine, Sichuan Agricultural University, Xinkang Road 46#, Yucheng District, Ya'an 625014, Sichuan, China.
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Xinkang Road 46#, Yucheng District, Ya'an 625014, Sichuan, China.
| | - Junliang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Xinkang Road 46#, Yucheng District, Ya'an 625014, Sichuan, China.
| | - Xiaoping Ma
- College of Veterinary Medicine, Sichuan Agricultural University, Xinkang Road 46#, Yucheng District, Ya'an 625014, Sichuan, China.
| | - Ya Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Xinkang Road 46#, Yucheng District, Ya'an 625014, Sichuan, China.
| | - Zhihua Ren
- College of Veterinary Medicine, Sichuan Agricultural University, Xinkang Road 46#, Yucheng District, Ya'an 625014, Sichuan, China.
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23
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Hazeltine LB, Badur MG, Lian X, Das A, Han W, Palecek SP. Temporal impact of substrate mechanics on differentiation of human embryonic stem cells to cardiomyocytes. Acta Biomater 2014; 10:604-12. [PMID: 24200714 PMCID: PMC3889126 DOI: 10.1016/j.actbio.2013.10.033] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 10/16/2013] [Accepted: 10/28/2013] [Indexed: 12/13/2022]
Abstract
A significant clinical need exists to differentiate human pluripotent stem cells (hPSCs) into cardiomyocytes, enabling tissue modeling for in vitro discovery of new drugs or cell-based therapies for heart repair in vivo. Chemical and mechanical microenvironmental factors are known to impact the efficiency of stem cell differentiation, but cardiac differentiation protocols in hPSCs are typically performed on rigid tissue culture polystyrene (TCPS) surfaces, which do not present a physiological mechanical setting. To investigate the temporal effects of mechanics on cardiac differentiation, we cultured human embryonic stem cells (hESCs) and their derivatives on polyacrylamide hydrogel substrates with a physiologically relevant range of stiffnesses. In directed differentiation and embryoid body culture systems, differentiation of hESCs to cardiac troponin T-expressing (cTnT+) cardiomyocytes peaked on hydrogels of intermediate stiffness. Brachyury expression also peaked on intermediate stiffness hydrogels at day 1 of directed differentiation, suggesting that stiffness impacted the initial differentiation trajectory of hESCs to mesendoderm. To investigate the impact of substrate mechanics during cardiac specification of mesodermal progenitors, we initiated directed cardiomyocyte differentiation on TCPS and transferred cells to hydrogels at the Nkx2.5/Isl1+ cardiac progenitor cell stage. No differences in cardiomyocyte purity with stiffness were observed on day 15. These experiments indicate that differentiation of hESCs is sensitive to substrate mechanics at early stages of mesodermal induction, and proper application of substrate mechanics can increase the propensity of hESCs to differentiate to cardiomyocytes.
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Affiliation(s)
- Laurie B Hazeltine
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Mehmet G Badur
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Xiaojun Lian
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Amritava Das
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Wenqing Han
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Sean P Palecek
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.
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24
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Quang T, Marquez M, Blanco G, Zhao Y. Dosage and cell line dependent inhibitory effect of bFGF supplement in human pluripotent stem cell culture on inactivated human mesenchymal stem cells. PLoS One 2014; 9:e86031. [PMID: 24465853 PMCID: PMC3895015 DOI: 10.1371/journal.pone.0086031] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 12/09/2013] [Indexed: 11/19/2022] Open
Abstract
Many different culture systems have been developed for expanding human pluripotent stem cells (hESCs and hiPSCs). In general, 4–10 ng/ml of bFGF is supplemented in culture media in feeder-dependent systems regardless of feeder cell types, whereas in feeder-free systems, up to 100 ng/ml of bFGF is required for maintaining long-term culture on various substrates. The amount of bFGF required in native hESCs growth niche is unclear. Here we report using inactivated adipose-derived human mesenchymal stem cells as feeder cells to examine long-term parallel cultures of two hESCs lines (H1 and H9) and one hiPSCs line (DF19-9-7T) in media supplemented with 0, 0.4 or 4 ng/ml of bFGF for up to 23 passages, as well as parallel cultures of H9 and DF19 in media supplemented with 4, 20 or 100 ng/ml bFGF for up to 13 passages for comparison. Across all cell lines tested, bFGF supplement demonstrated inhibitory effect over growth expansion, single cell colonization and recovery from freezing in a dosage dependent manner. In addition, bFGF exerted differential effects on different cell lines, inducing H1 and DF19 differentiation at 4 ng/ml or higher, while permitting long-term culture of H9 at the same concentrations with no apparent dosage effect. Pluripotency was confirmed for all cell lines cultured in 0, 0.4 or 4 ng/ml bFGF excluding H1-4 ng, as well as H9 cultured in 4, 20 and 100 ng/ml bFGF. However, DF19 demonstrated similar karyotypic abnormality in both 0 and 4 ng/ml bFGF media while H1 and H9 were karyotypically normal in 0 ng/ml bFGF after long-term culture. Our results indicate that exogenous bFGF exerts dosage and cell line dependent effect on human pluripotent stem cells cultured on mesenchymal stem cells, and implies optimal use of bFGF in hESCs/hiPSCs culture should be based on specific cell line and its culture system.
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Affiliation(s)
- Tara Quang
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, United States of America
| | - Maribel Marquez
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, United States of America
| | - Giselle Blanco
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, United States of America
| | - Yuanxiang Zhao
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, United States of America
- * E-mail:
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25
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Si X, Chen W, Guo X, Chen L, Wang G, Xu Y, Kang J. Activation of GSK3β by Sirt2 is required for early lineage commitment of mouse embryonic stem cell. PLoS One 2013; 8:e76699. [PMID: 24204656 PMCID: PMC3800056 DOI: 10.1371/journal.pone.0076699] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 08/27/2013] [Indexed: 01/09/2023] Open
Abstract
Sirt2, a member of the NAD(+)-dependent protein deacetylase family, is increasingly recognized as a critical regulator of the cell cycle, cellular necrosis and cytoskeleton organization. However, its role in embryonic stem cells (ESCs) remains unclear. Here we demonstrate that Sirt2 is up-regulated during RA (retinoic acid)-induced and embryoid body (EB) differentiation of mouse ESCs. Using lentivirus-mediated shRNA methods, we found that knockdown of Sirt2 compromises the differentiation of mouse ESCs into ectoderm while promoting mesoderm and endoderm differentiation. Knockdown of Sirt2 expression also leads to the activation of GSK3β through decreased phosphorylation of the serine at position 9 (Ser9) but not tyrosine at position 216 (Tyr216). Moreover, the constitutive activation of GSK3β during EB differentiation mimics the effect of Sirt2 knockdown, while down-regulation of GSK3β rescues the effect of Sirt2 knockdown on differentiation. In contrast to the effect on lineage differentiation, Sirt2 knockdown and GSK3β up-regulation do not change the self-renewal state of mouse ESCs. Overall, our report reveals a new function for Sirt2 in regulating the proper lineage commitment of mouse ESCs.
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Affiliation(s)
- Xiaoxing Si
- Clinical and Translational Research Center of Shanghai First Maternity & Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, China
| | - Wen Chen
- Clinical and Translational Research Center of Shanghai First Maternity & Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, China
| | - Xudong Guo
- Clinical and Translational Research Center of Shanghai First Maternity & Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, China
| | - Long Chen
- Clinical and Translational Research Center of Shanghai First Maternity & Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, China
| | - Guiying Wang
- Clinical and Translational Research Center of Shanghai First Maternity & Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, China
| | - Yanxin Xu
- Clinical and Translational Research Center of Shanghai First Maternity & Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, China
| | - Jiuhong Kang
- Clinical and Translational Research Center of Shanghai First Maternity & Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, China
- * E-mail:
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26
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Duggal G, Heindryckx B, Warrier S, O'Leary T, Van der Jeught M, Lierman S, Vossaert L, Deroo T, Deforce D, Chuva de Sousa Lopes SM, De Sutter P. Influence of activin A supplementation during human embryonic stem cell derivation on germ cell differentiation potential. Stem Cells Dev 2013; 22:3141-55. [PMID: 23829223 DOI: 10.1089/scd.2013.0024] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Human embryonic stem cells (hESCs) are more similar to "primed" mouse epiblast stem cells (mEpiSCs). mEpiSCs, which are derived in Activin A, show an increased propensity to form primordial germ cell (PGC)-like cells in response to bone morphogenic protein 4 (BMP4). Hence, we hypothesized that hESCs derived in the presence of Activin A may be more competent in differentiating towards PGC-like cells after supplementation with BMP4 compared to standard hESC lines. We were able to successfully derive two hESC lines in the presence of Activin A, which were pluripotent and showed higher base levels of STELLA and cKIT compared to standard hESC lines derived without Activin A addition. Furthermore, upon differentiation as embryoid bodies in the presence of BMP4, we observed upregulation of VASA at day 7, both at the transcript and protein level compared to standard hESC lines, which appeared to take longer time for PGC specification. Unlike other hESC lines, nuclear pSMAD2/3 presence confirmed that Activin signalling was switched on in Activin A-derived hESC lines. They were also responsive to BMP4 based on nuclear detection of pSMAD1/5/8 and showed endodermal differentiation as a result of GATA-6 expression. Hence, our results provide novel insights into the impact of hESC derivation in the presence of Activin A and its subsequent influence on germ cell differentiation potential in vitro.
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Affiliation(s)
- Galbha Duggal
- 1 Department for Reproductive Medicine, Ghent University Hospital , Ghent, Belgium
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27
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Lim SY, Sivakumaran P, Crombie DE, Dusting GJ, Pébay A, Dilley RJ. Trichostatin A enhances differentiation of human induced pluripotent stem cells to cardiogenic cells for cardiac tissue engineering. Stem Cells Transl Med 2013; 2:715-25. [PMID: 23884641 DOI: 10.5966/sctm.2012-0161] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Human induced pluripotent stem (iPS) cells are a promising source of autologous cardiomyocytes to repair and regenerate myocardium for treatment of heart disease. In this study, we have identified a novel strategy to enhance cardiac differentiation of human iPS cells by treating embryoid bodies (EBs) with a histone deacetylase inhibitor, trichostatin A (TSA), together with activin A and bone morphogenetic protein 4 (BMP4). Over a narrow window of concentrations, TSA (1 ng/ml) directed the differentiation of human iPS cells into a cardiomyocyte lineage. TSA also exerted an additive effect with activin A (100 ng/ml) and BMP4 (20 ng/ml). The resulting cardiomyocytes expressed several cardiac-specific transcription factors and contractile proteins at both gene and protein levels. Functionally, the contractile EBs displayed calcium cycling and were responsive to the chronotropic agents isoprenaline (0.1 μM) and carbachol (1 μM). Implanting microdissected beating areas of iPS cells into tissue engineering chambers in immunocompromised rats produced engineered constructs that supported their survival, and they maintained spontaneous contraction. Human cardiomyocytes were identified as compact patches of muscle tissue incorporated within a host fibrocellular stroma and were vascularized by host neovessels. In conclusion, human iPS cell-derived cardiomyocytes can be used to engineer functional cardiac muscle tissue for studying the pathophysiology of cardiac disease, for drug discovery test beds, and potentially for generation of cardiac grafts to surgically replace damaged myocardium.
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Affiliation(s)
- Shiang Y Lim
- O'Brien Institute, Fitzroy, Victoria, Australia.
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28
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Goh SK, Olsen P, Banerjee I. Extracellular matrix aggregates from differentiating embryoid bodies as a scaffold to support ESC proliferation and differentiation. PLoS One 2013; 8:e61856. [PMID: 23637919 PMCID: PMC3630218 DOI: 10.1371/journal.pone.0061856] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 03/15/2013] [Indexed: 01/15/2023] Open
Abstract
Embryonic stem cells (ESCs) have emerged as potential cell sources for tissue engineering and regeneration owing to its virtually unlimited replicative capacity and the potential to differentiate into a variety of cell types. Current differentiation strategies primarily involve various growth factor/inducer/repressor concoctions with less emphasis on the substrate. Developing biomaterials to promote stem cell proliferation and differentiation could aid in the realization of this goal. Extracellular matrix (ECM) components are important physiological regulators, and can provide cues to direct ESC expansion and differentiation. ECM undergoes constant remodeling with surrounding cells to accommodate specific developmental event. In this study, using ESC derived aggregates called embryoid bodies (EB) as a model, we characterized the biological nature of ECM in EB after exposure to different treatments: spontaneously differentiated and retinoic acid treated (denoted as SPT and RA, respectively). Next, we extracted this treatment-specific ECM by detergent decellularization methods (Triton X-100, DOC and SDS are compared). The resulting EB ECM scaffolds were seeded with undifferentiated ESCs using a novel cell seeding strategy, and the behavior of ESCs was studied. Our results showed that the optimized protocol efficiently removes cells while retaining crucial ECM and biochemical components. Decellularized ECM from SPT EB gave rise to a more favorable microenvironment for promoting ESC attachment, proliferation, and early differentiation, compared to native EB and decellularized ECM from RA EB. These findings suggest that various treatment conditions allow the formulation of unique ESC-ECM derived scaffolds to enhance ESC bioactivities, including proliferation and differentiation for tissue regeneration applications.
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Affiliation(s)
- Saik-Kia Goh
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Phillip Olsen
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Ipsita Banerjee
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- * E-mail:
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29
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Huang FJ, Lan KC, Kang HY, Lin PY, Chan WH, Hsu YC, Liu YC, Huang KE. Retinoic acid influences the embryoid body formation in mouse embryonic stem cells by induction of caspase and p38 MAPK/JNK-mediated apoptosis. Environ Toxicol 2013; 28:190-200. [PMID: 21626648 DOI: 10.1002/tox.20709] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 02/03/2011] [Accepted: 02/04/2011] [Indexed: 05/30/2023]
Abstract
Although all-trans retinoic acid (RA), the oxidative metabolite of vitamin A, is essential for normal development, high levels are teratogenic in many species. RA results in immediate effects on the preimplantation embryo and on blastocyst development in vitro and in vivo. To further elucidate the cellular mechanisms of early postimplantation embryo development induced by RA, we present an embryonic cell line, B5, as a candidate system for the investigation of these processes. We used undifferentiated ES cells as the model, which is from the undifferentiated status to differentiated status [embryoid body (EB) formation] mimicking postimplantation embryo development (egg-cylinder stage of embryo formation) to clarify the cellular mechanism of action of RA in the implanted blastocysts and cell apoptosis following the series of exposures to differing RA concentrations. Using an in vitro model, we identified the impact of RA on undifferentiated embryonic stem (ES) cells, including inhibition of cell proliferation and induction of cell apoptosis. JNK, P-38 and caspase activation were shown in the nature of RA-triggered apoptotic signaling in ES cells. The carry-on influences of RA on the ES cell were shown in the formation of EB from the pretreated ES cells. RA resulted in apparent impact on undifferentiated ES cells in vitro, with increased numbers of apoptotic cells initially and inhibited cell proliferation, which led to decreased size of EB. The process of EB formation (mimicking the early postimplantation embryo development) is regulated by RA-induced apoptosis through the activation of caspase and P38 MAPK/JNK pathway.
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Affiliation(s)
- Fu-Jen Huang
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital, Taiwan.
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30
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Dai Y, Qin J, Zhang X, Zhang X, Chen C, Liao K. [Effect of electrical stimulation on the differentiation of induced pluripotent stem cells into cardiomyocytes induced by vitamin C in vitro]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2013; 29:364-367. [PMID: 23643166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To investigate the effect of electrical stimulation on the differentiation of induced pluripotent stem cells (iPSCs) into cardiomyocytes in vitro. METHODS Classical hanging-drop method was used to induce iPSCs from mice to form embryoid bodies (EBs) and vitamin C was contained in the medium through the induction period. According to whether or not electrical stimulation was used in the whole induction period, iPSCs were divided to electrical stimulation group and non-stimulation group. During the induction, dynamic morphological changes of the EBs were observed and photographed, the time point when beating EBs in each group appeared was recorded and the number of them was counted. The percentage of beating ones in all EBs was calculated as the differentiation rate of cardiomyocytes induced from iPSCs. Furthermore, expression of cardiac troponin T (cTnT) was observed by immunofluorescent staining under a confocal laser scanning microscope (CLSM), and mRNA expression levels of the related genes Oct-4, GATA-4 and α-MHC were analyzed by RT-PCR. RESULTS Compared with the non-stimulation group, beating cells in electrical stimulation group appeared in a shorter time, and the differentiation rate of cardiomyocytes was higher [(68.89 ± 5.09)% vs (52.22 ± 3.85)%, P<0.05]. c-TnT was expressed in the beating area of both groups, but the cells in the electrical stimulation group showed a more clear cytoskeleton. The mRNA level of Oct-4 decreased in a time-dependent manner in the whole period of induction and in the electrical stimulated group it decreased faster than the non-stimulation group (P<0.05). In addition, more GATA4 and α-MHC mRNA in electrical stimulation group were expressed than the non-stimulated group at the same point-in-time (P<0.05). CONCLUSION The electrical stimulation which simulates cardiac electrical microenvironment to some extent improved the differentiation of iPSCs into functional cardiomyocytes induced by vitamin C in vitro.
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Affiliation(s)
- Yanmei Dai
- Department of Cardiology, First Affiliated Hospital, Chongqing Medical University, China.
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31
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Delaspre F, Massumi M, Salido M, Soria B, Ravassard P, Savatier P, Skoudy A. Directed pancreatic acinar differentiation of mouse embryonic stem cells via embryonic signalling molecules and exocrine transcription factors. PLoS One 2013; 8:e54243. [PMID: 23349836 PMCID: PMC3547908 DOI: 10.1371/journal.pone.0054243] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Accepted: 12/10/2012] [Indexed: 11/22/2022] Open
Abstract
Pluripotent embryonic stem cells (ESC) are a promising cellular system for generating an unlimited source of tissue for the treatment of chronic diseases and valuable in vitro differentiation models for drug testing. Our aim was to direct differentiation of mouse ESC into pancreatic acinar cells, which play key roles in pancreatitis and pancreatic cancer. To that end, ESC were first differentiated as embryoid bodies and sequentially incubated with activin A, inhibitors of Sonic hedgehog (Shh) and bone morphogenetic protein (BMP) pathways, fibroblast growth factors (FGF) and retinoic acid (RA) in order to achieve a stepwise increase in the expression of mRNA transcripts encoding for endodermal and pancreatic progenitor markers. Subsequent plating in Matrigel® and concomitant modulation of FGF, glucocorticoid, and folllistatin signalling pathways involved in exocrine differentiation resulted in a significant increase of mRNAs encoding secretory enzymes and in the number of cells co-expressing their protein products. Also, pancreatic endocrine marker expression was down-regulated and accompanied by a significant reduction in the number of hormone-expressing cells with a limited presence of hepatic marker expressing-cells. These findings suggest a selective activation of the acinar differentiation program. The newly differentiated cells were able to release α-amylase and this feature was greatly improved by lentiviral-mediated expression of Rbpjl and Ptf1a, two transcription factors involved in the maximal production of digestive enzymes. This study provides a novel method to produce functional pancreatic exocrine cells from ESC.
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Affiliation(s)
- Fabien Delaspre
- Cancer Research Program, Institut Hospital del Mar d’Investigacions Mèdiques (IMIM), Biomedical Research Park, Barcelona, Spain
| | - Mohammad Massumi
- Cancer Research Program, Institut Hospital del Mar d’Investigacions Mèdiques (IMIM), Biomedical Research Park, Barcelona, Spain
| | - Marta Salido
- Cancer Research Program, Institut Hospital del Mar d’Investigacions Mèdiques (IMIM), Biomedical Research Park, Barcelona, Spain
| | - Bernat Soria
- CABIMER, Sevilla, Spain
- CIBERDEM, Instituto de Salud Carlos III, Madrid, Spain
| | | | - Pierre Savatier
- Stem Cells and Brain Research Institute, Bron, France
- Université de Lyon, Lyon, France
| | - Anouchka Skoudy
- Cancer Research Program, Institut Hospital del Mar d’Investigacions Mèdiques (IMIM), Biomedical Research Park, Barcelona, Spain
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Nguemo F, Fleischmann BK, Gupta MK, Šarić T, Malan D, Liang H, Pfannkuche K, Bloch W, Schunkert H, Hescheler J, Reppel M. The L-type Ca2+ channels blocker nifedipine represses mesodermal fate determination in murine embryonic stem cells. PLoS One 2013; 8:e53407. [PMID: 23320083 PMCID: PMC3539992 DOI: 10.1371/journal.pone.0053407] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2012] [Accepted: 11/28/2012] [Indexed: 01/20/2023] Open
Abstract
Dihydropyridines (DHP), which nifedipine is a member of, preferentially block Ca(2+) channels of different cell types. Moreover, influx of Ca(2+) through L-type Ca(2+) channels (LTCCs) activates Ca(2+) signaling pathways, which in turn contribute to numerous cellular processes. Although LTCCs are expressed in undifferentiated cells, very little is known about its contributions to the transcriptional regulation of mesodermal and cardiac genes. This study aimed to examine the contribution of LTCCs and the effect of nifedipine on the commitment of pluripotent stem cells toward the cardiac lineage in vitro. The murine embryonic stem (ES, cell line D3) and induced pluripotent stem (iPS, cell clone 09) cells were differentiated into enhanced green fluorescence protein (EGFP) expressing spontaneously beating cardiomyocytes (CMs). Early treatment of differentiating cells with 10 µM nifedipine led to a significant inhibition of the cardiac mesoderm formation and cardiac lineage commitment as revealed by gene regulation analysis. This was accompanied by the inhibition of spontaneously occurring Ca(2+) transient and reduction of LTCCs current density (I(CaL)) of differentiated CMs. In addition, nifedipine treatment instigated a pronounced delay of the spontaneous beating embryoid body (EB) and led to a poor surface localization of L-type Ca(2+) channel α(1C) (Ca(V)1.2) subunits. Contrary late incubation of pluripotent stem cells with nifedipine was without any impact on the differentiation process and did not affect the derived CMs function. Our data indicate that nifedipine blocks the determined path of pluripotent stem cells to cardiomyogenesis by inhibition of mesodermal commitment at early stages of differentiation, thus the proper upkeep Ca(2+) concentration and pathways are essentially required for cardiac gene expression, differentiation and function.
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Affiliation(s)
- Filomain Nguemo
- Institute of Neurophysiology, University of Cologne, Cologne, Germany
| | - Bernd K. Fleischmann
- Institute of Physiology I, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Manoj K. Gupta
- Institute of Neurophysiology, University of Cologne, Cologne, Germany
| | - Tomo Šarić
- Institute of Neurophysiology, University of Cologne, Cologne, Germany
| | - Daniela Malan
- Institute of Physiology I, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Huamin Liang
- Department of Physiology, Huazhong University of Science and Technology, Tongji Medical College, Wuhan, China
| | - Kurt Pfannkuche
- Institute of Neurophysiology, University of Cologne, Cologne, Germany
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sport Medicine, German Sport University, Cologne, Germany
| | | | - Jürgen Hescheler
- Institute of Neurophysiology, University of Cologne, Cologne, Germany
| | - Michael Reppel
- Institute of Neurophysiology, University of Cologne, Cologne, Germany
- Department of Cardiology, Medical University of Lübeck, Lübeck, Germany
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Malysheva SV, Budash HV, Bil'ko NM, Heschheller J. [Cardiomyocyte differentiation of individual clones murine induced pluripotent stem cells]. Fiziol Zh (1994) 2013; 59:10-17. [PMID: 23957159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Cardiomyocyte differentiation of certain clones of murine induced pluripotent stem cells (iPS) was estimated. iPS were obtained due to reprogramming of murine embryonic fibroblasts with transposon-based Sleeping beauty plasmids as sene delivery systems. Differentiation was performed in suspension culture and in attached to tissue-culture plates embryoid bodies (EBs). Ascorbic acid was applied as inductor. According to the obtained results, the differentiation was tenfold more effective in attached EBs. Ascorbic acid stimulated the generation of cardiomiocytes.
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Smith AJ, Nelson NG, Oommen S, Hartjes KA, Folmes CD, Terzic A, Nelson TJ. Apoptotic susceptibility to DNA damage of pluripotent stem cells facilitates pharmacologic purging of teratoma risk. Stem Cells Transl Med 2012. [PMID: 23197662 DOI: 10.5966/sctm.2012-0066] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Pluripotent stem cells have been the focus of bioengineering efforts designed to generate regenerative products, yet harnessing therapeutic capacity while minimizing risk of dysregulated growth remains a challenge. The risk of residual undifferentiated stem cells within a differentiated progenitor population requires a targeted approach to eliminate contaminating cells prior to delivery. In this study we aimed to validate a toxicity strategy that could selectively purge pluripotent stem cells in response to DNA damage and avoid risk of uncontrolled cell growth upon transplantation. Compared with somatic cell types, embryonic stem cells and induced pluripotent stem cells displayed hypersensitivity to apoptotic induction by genotoxic agents. Notably, hypersensitivity in pluripotent stem cells was stage-specific and consistently lost upon in vitro differentiation, with the mean half-maximal inhibitory concentration increasing nearly 2 orders of magnitude with tissue specification. Quantitative polymerase chain reaction and Western blotting demonstrated that the innate response was mediated through upregulation of the BH3-only protein Puma in both natural and induced pluripotent stem cells. Pretreatment with genotoxic etoposide purged hypersensitive pluripotent stem cells to yield a progenitor population refractory to teratoma formation upon transplantation. Collectively, this study exploits a hypersensitive apoptotic response to DNA damage within pluripotent stem cells to decrease risk of dysregulated growth and augment the safety profile of transplant-ready, bioengineered progenitor cells.
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Affiliation(s)
- Alyson J Smith
- Department of Medicine and Transplant Center, Mayo Clinic, Rochester, MN 55905, USA
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Liu SP, Harn HJ, Chien YJ, Chang CH, Hsu CY, Fu RH, Huang YC, Chen SY, Shyu WC, Lin SZ. n-Butylidenephthalide (BP) maintains stem cell pluripotency by activating Jak2/Stat3 pathway and increases the efficiency of iPS cells generation. PLoS One 2012; 7:e44024. [PMID: 22970157 PMCID: PMC3436873 DOI: 10.1371/journal.pone.0044024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Accepted: 08/01/2012] [Indexed: 11/24/2022] Open
Abstract
In 2006, induced pluripotent stem (iPS) cells were generated from somatic cells by introducing Oct4, Sox2, c-Myc and Klf4. The original process was inefficient; maintaining the pluripotency of embryonic stem (ES) and iPS cell cultures required an expensive reagent–leukemia induced factor (LIF). Our goal is to find a pure compound that not only maintains ES and iPS cell pluripotency, but also increases iPS cell generation efficiency. From 15 candidate compounds we determined that 10 µg/ml n-Butylidenephthalide (BP), an Angelica sinensis extract, triggers the up-regulation of Oct4 and Sox2 gene expression levels in MEF cells. We used ES and iPS cells treated with different concentrations of BP to test its usefulness for maintaining stem cell pluripotency. Results indicate higher expression levels of several stem cell markers in BP-treated ES and iPS cells compared to controls that did not contain LIF, including alkaline phosphatase, SSEA1, and Nanog. Embryoid body formation and differentiation results confirm that BP containing medium culture was capable of maintaining ES cell pluripotency after six time passage. Microarray analysis data identified PPAR, ECM, and Jak-Stat signaling as the top three deregulated pathways. We subsequently determined that phosphorylated Jak2 and phosphorylated Stat3 protein levels increased following BP treatment and suppressed with the Jak2 inhibitor, AG490. The gene expression levels of cytokines associated with the Jak2-Stat3 pathway were also up-regulated. Last, we used pou5f1-GFP MEF cells to test iPS generation efficiency following BP treatment. Our data demonstrate the ability of BP to maintain stem cell pluripotency via the Jak2-Stat3 pathway by inducing cytokine expression levels, at the same time improving iPS generation efficiency.
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Affiliation(s)
- Shih-Ping Liu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan.
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Mellough CB, Sernagor E, Moreno-Gimeno I, Steel DHW, Lako M. Efficient stage-specific differentiation of human pluripotent stem cells toward retinal photoreceptor cells. Stem Cells 2012; 30:673-86. [PMID: 22267304 DOI: 10.1002/stem.1037] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Recent successes in the stem cell field have identified some of the key chemical and biological cues which drive photoreceptor derivation from human embryonic stem cells (hESC) and human induced pluripotent stem cells (hiPSC); however, the efficiency of this process is variable. We have designed a three-step photoreceptor differentiation protocol combining previously published methods that direct the differentiation of hESC and hiPSC toward a retinal lineage, which we further modified with additional supplements selected on the basis of reports from the eye field and retinal development. We report that hESC and hiPSC differentiating under our regimen over a 60 day period sequentially acquire markers associated with neural, retinal field, retinal pigmented epithelium and photoreceptor cells, including mature photoreceptor markers OPN1SW and RHODOPSIN with a higher efficiency than previously reported. In addition, we report the ability of hESC and hiPSC cultures to generate neural and retinal phenotypes under minimal culture conditions, which may be linked to their ability to endogenously upregulate the expression of a range of factors important for retinal cell type specification. However, cultures that were differentiated with full supplementation under our photoreceptor-induction regimen achieve this within a significantly shorter time frame and show a substantial increase in the expression of photoreceptor-specific markers in comparison to cultures differentiated under minimal conditions. Interestingly, cultures supplemented only with B27 and/or N2 displayed comparable differentiation efficiency to those under full supplementation, indicating a key role for B27 and N2 during the differentiation process. Furthermore, our data highlight an important role for Dkk1 and Noggin in enhancing the differentiation of hESC and hiPSC toward retinal progenitor cells and photoreceptor precursors during the early stages of differentiation, while suggesting that further maturation of these cells into photoreceptors may not require additional factors and can ensue under minimal culture conditions.
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Affiliation(s)
- Carla B Mellough
- Institute of Genetic Medicine, Newcastle University, Newcastle, UK
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Wang INE, Wang X, Ge X, Anderson J, Ho M, Ashley E, Liu J, Butte MJ, Yazawa M, Dolmetsch RE, Quertermous T, Yang PC. Apelin enhances directed cardiac differentiation of mouse and human embryonic stem cells. PLoS One 2012; 7:e38328. [PMID: 22675543 PMCID: PMC3365885 DOI: 10.1371/journal.pone.0038328] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 05/03/2012] [Indexed: 12/12/2022] Open
Abstract
Apelin is a peptide ligand for an orphan G-protein coupled receptor (APJ receptor) and serves as a critical gradient for migration of mesodermal cells fated to contribute to the myocardial lineage. The present study was designed to establish a robust cardiac differentiation protocol, specifically, to evaluate the effect of apelin on directed differentiation of mouse and human embryonic stem cells (mESCs and hESCs) into cardiac lineage. Different concentrations of apelin (50, 100, 500 nM) were evaluated to determine its differentiation potential. The optimized dose of apelin was then combined with mesodermal differentiation factors, including BMP-4, activin-A, and bFGF, in a developmentally specific temporal sequence to examine the synergistic effects on cardiac differentiation. Cellular, molecular, and physiologic characteristics of the apelin-induced contractile embryoid bodies (EBs) were analyzed. It was found that 100 nM apelin resulted in highest percentage of contractile EB for mESCs while 500 nM had the highest effects on hESCs. Functionally, the contractile frequency of mESCs-derived EBs (mEBs) responded appropriately to increasing concentration of isoprenaline and diltiazem. Positive phenotype of cardiac specific markers was confirmed in the apelin-treated groups. The protocol, consisting of apelin and mesodermal differentiation factors, induced contractility in significantly higher percentage of hESC-derived EBs (hEBs), up-regulated cardiac-specific genes and cell surface markers, and increased the contractile force. In conclusion, we have demonstrated that the treatment of apelin enhanced cardiac differentiation of mouse and human ESCs and exhibited synergistic effects with mesodermal differentiation factors.
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Affiliation(s)
- I-Ning E Wang
- Division of Cardiovascular Medicine, Department of Medicine, School of Medicine, Stanford University, Stanford, California, United States of America.
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Piecewicz SM, Pandey A, Roy B, Hua Xiang S, Zetter BR, Sengupta S. Insulin-like growth factors promote vasculogenesis in embryonic stem cells. PLoS One 2012; 7:e32191. [PMID: 22363814 PMCID: PMC3283730 DOI: 10.1371/journal.pone.0032191] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Accepted: 01/24/2012] [Indexed: 01/09/2023] Open
Abstract
The ability of embryonic stem cells to differentiate into endothelium and form functional blood vessels has been well established and can potentially be harnessed for therapeutic angiogenesis. However, after almost two decades of investigation in this field, limited knowledge exists for directing endothelial differentiation. A better understanding of the cellular mechanisms regulating vasculogenesis is required for the development of embryonic stem cell-based models and therapies. In this study, we elucidated the mechanistic role of insulin-like growth factors (IGF1 and 2) and IGF receptors (IGFR1 and 2) in endothelial differentiation using an embryonic stem cell embryoid body model. Both IGF1 or IGF2 predisposed embryonic stem to differentiate towards a mesodermal lineage, the endothelial precursor germ layer, as well as increased the generation of significantly more endothelial cells at later stages. Inhibition of IGFR1 signaling using neutralizing antibody or a pharmacological inhibitor, picropodophyllin, significantly reduced IGF-induced mesoderm and endothelial precursor cell formation. We confirmed that IGF-IGFR1 signaling stabilizes HIF1α and leads to up-regulation of VEGF during vasculogenesis in embryoid bodies. Understanding the mechanisms that are critical for vasculogenesis in various models will bring us one step closer to enabling cell based therapies for neovascularization.
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Affiliation(s)
- Stephanie M. Piecewicz
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts, United States of America
| | - Ambarish Pandey
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Bhaskar Roy
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Medical Science and Technology, Indian Institute of Technology, Kharagpur, India
| | - Soh Hua Xiang
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Bruce R. Zetter
- Vascular Biology Program and Department of Surgery, Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Shiladitya Sengupta
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts, United States of America
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Nagano R, Akanuma H, Qin XY, Imanishi S, Toyoshiba H, Yoshinaga J, Ohsako S, Sone H. Multi-parametric profiling network based on gene expression and phenotype data: a novel approach to developmental neurotoxicity testing. Int J Mol Sci 2011; 13:187-207. [PMID: 22312247 PMCID: PMC3269681 DOI: 10.3390/ijms13010187] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Revised: 11/14/2011] [Accepted: 11/30/2011] [Indexed: 12/31/2022] Open
Abstract
The establishment of more efficient approaches for developmental neurotoxicity testing (DNT) has been an emerging issue for children’s environmental health. Here we describe a systematic approach for DNT using the neuronal differentiation of mouse embryonic stem cells (mESCs) as a model of fetal programming. During embryoid body (EB) formation, mESCs were exposed to 12 chemicals for 24 h and then global gene expression profiling was performed using whole genome microarray analysis. Gene expression signatures for seven kinds of gene sets related to neuronal development and neuronal diseases were selected for further analysis. At the later stages of neuronal cell differentiation from EBs, neuronal phenotypic parameters were determined using a high-content image analyzer. Bayesian network analysis was then performed based on global gene expression and neuronal phenotypic data to generate comprehensive networks with a linkage between early events and later effects. Furthermore, the probability distribution values for the strength of the linkage between parameters in each network was calculated and then used in principal component analysis. The characterization of chemicals according to their neurotoxic potential reveals that the multi-parametric analysis based on phenotype and gene expression profiling during neuronal differentiation of mESCs can provide a useful tool to monitor fetal programming and to predict developmentally neurotoxic compounds.
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Affiliation(s)
- Reiko Nagano
- Health Risk Research Section, Research Center for Environmental Risk, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Japan; E-Mails: (R.N.); (H.A.); (X.-Y.Q.); (H.T.)
| | - Hiromi Akanuma
- Health Risk Research Section, Research Center for Environmental Risk, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Japan; E-Mails: (R.N.); (H.A.); (X.-Y.Q.); (H.T.)
| | - Xian-Yang Qin
- Health Risk Research Section, Research Center for Environmental Risk, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Japan; E-Mails: (R.N.); (H.A.); (X.-Y.Q.); (H.T.)
- Department of Environmental Studies, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 270-8563, Japan; E-Mail:
| | - Satoshi Imanishi
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan; E-Mails: (S.I.); (S.O.)
| | - Hiroyoshi Toyoshiba
- Health Risk Research Section, Research Center for Environmental Risk, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Japan; E-Mails: (R.N.); (H.A.); (X.-Y.Q.); (H.T.)
| | - Jun Yoshinaga
- Department of Environmental Studies, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 270-8563, Japan; E-Mail:
| | - Seiichiroh Ohsako
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan; E-Mails: (S.I.); (S.O.)
| | - Hideko Sone
- Health Risk Research Section, Research Center for Environmental Risk, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Japan; E-Mails: (R.N.); (H.A.); (X.-Y.Q.); (H.T.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +81-29-850-2464; Fax: +81-29-850-2546
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de Azevedo-Pereira RL, Lima APCA, Rodrigues DDC, Rondinelli E, Medei EH, Goldenberg RC, de Carvalho ACCC, Mendez-Otero R. Cysteine proteases in differentiation of embryonic stem cells into neural cells. Stem Cells Dev 2011; 20:1859-72. [PMID: 21417836 DOI: 10.1089/scd.2010.0186] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Glycosylated mouse cystatin C (mCysC), an endogenous inhibitor of cysteine cathepsin proteases (CP), has been suggested as a cofactor of β-FGF to induce the differentiation of mouse embryonic stem cells into neural progenitor cells (NPCs). To investigate the possible role of CP in neural differentiation, we treated embryoid bodies (EBs) with (i) E64, an inhibitor of papain-like CP and of calpains, (ii) an inhibitor of cathepsin L (iCatL), (iii) an inhibitor of calpains (iCalp), or (iv) cystatins, and their ability to differentiate into neural cells was assessed. We show that the inhibition of CP induces a significant increase in Pax6 expression in EBs, leading to an increase in the number of nestin-positive cells after 3 days. Fourteen days after E64 treatment, we observed increased numbers of β-III-tubulin-positive cells, showing greater percentage of immature neurons, and this feature persisted up to 24 days. At this point, we encountered higher numbers of neurons with inward Na(+) current compared with untreated EBs. Further, we show that mCysC and iCatL, but not unglycosylated egg white cystatin or iCalp, increased the numbers of NPCs. In contrast to E64 and iCatL, mCysC did not inhibit CP in EBs and its neural-inducing activity required β-FGF. We propose that the inhibition of CP induces the differentiation of mouse embryonic stem cells into NPCs and neurons through a mechanism that is distinct from CysC-induced neural differentiation.
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Burridge PW, Thompson S, Millrod MA, Weinberg S, Yuan X, Peters A, Mahairaki V, Koliatsos VE, Tung L, Zambidis ET. A universal system for highly efficient cardiac differentiation of human induced pluripotent stem cells that eliminates interline variability. PLoS One 2011; 6:e18293. [PMID: 21494607 PMCID: PMC3072973 DOI: 10.1371/journal.pone.0018293] [Citation(s) in RCA: 330] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Accepted: 02/23/2011] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The production of cardiomyocytes from human induced pluripotent stem cells (hiPSC) holds great promise for patient-specific cardiotoxicity drug testing, disease modeling, and cardiac regeneration. However, existing protocols for the differentiation of hiPSC to the cardiac lineage are inefficient and highly variable. We describe a highly efficient system for differentiation of human embryonic stem cells (hESC) and hiPSC to the cardiac lineage. This system eliminated the variability in cardiac differentiation capacity of a variety of human pluripotent stem cells (hPSC), including hiPSC generated from CD34(+) cord blood using non-viral, non-integrating methods. METHODOLOGY/PRINCIPAL FINDINGS We systematically and rigorously optimized >45 experimental variables to develop a universal cardiac differentiation system that produced contracting human embryoid bodies (hEB) with an improved efficiency of 94.7±2.4% in an accelerated nine days from four hESC and seven hiPSC lines tested, including hiPSC derived from neonatal CD34(+) cord blood and adult fibroblasts using non-integrating episomal plasmids. This cost-effective differentiation method employed forced aggregation hEB formation in a chemically defined medium, along with staged exposure to physiological (5%) oxygen, and optimized concentrations of mesodermal morphogens BMP4 and FGF2, polyvinyl alcohol, serum, and insulin. The contracting hEB derived using these methods were composed of high percentages (64-89%) of cardiac troponin I(+) cells that displayed ultrastructural properties of functional cardiomyocytes and uniform electrophysiological profiles responsive to cardioactive drugs. CONCLUSION/SIGNIFICANCE This efficient and cost-effective universal system for cardiac differentiation of hiPSC allows a potentially unlimited production of functional cardiomyocytes suitable for application to hPSC-based drug development, cardiac disease modeling, and the future generation of clinically-safe nonviral human cardiac cells for regenerative medicine.
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Affiliation(s)
- Paul W. Burridge
- Johns Hopkins Institute for Cell Engineering, The Johns Hopkins
University School of Medicine, Baltimore, Maryland, United States of
America
- * E-mail: (ETZ); (PWB)
| | - Susan Thompson
- Department of Biomedical Engineering, The Johns Hopkins University School
of Medicine, Baltimore, Maryland, United States of America
| | - Michal A. Millrod
- Johns Hopkins Institute for Cell Engineering, The Johns Hopkins
University School of Medicine, Baltimore, Maryland, United States of
America
| | - Seth Weinberg
- Department of Biomedical Engineering, The Johns Hopkins University School
of Medicine, Baltimore, Maryland, United States of America
| | - Xuan Yuan
- Johns Hopkins Institute for Cell Engineering, The Johns Hopkins
University School of Medicine, Baltimore, Maryland, United States of
America
| | - Ann Peters
- Johns Hopkins Institute for Cell Engineering, The Johns Hopkins
University School of Medicine, Baltimore, Maryland, United States of
America
| | - Vasiliki Mahairaki
- Division of Neuropathology, Department of Pathology, The Johns Hopkins
University School of Medicine, Baltimore, Maryland, United States of
America
| | - Vassilis E. Koliatsos
- Division of Neuropathology, Department of Pathology, The Johns Hopkins
University School of Medicine, Baltimore, Maryland, United States of
America
- Department of Neurology, The Johns Hopkins University School of Medicine,
Baltimore, Maryland, United States of America
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins
University School of Medicine, Baltimore, Maryland, United States of
America
| | - Leslie Tung
- Department of Biomedical Engineering, The Johns Hopkins University School
of Medicine, Baltimore, Maryland, United States of America
| | - Elias T. Zambidis
- Johns Hopkins Institute for Cell Engineering, The Johns Hopkins
University School of Medicine, Baltimore, Maryland, United States of
America
- * E-mail: (ETZ); (PWB)
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Kim C, Lee KS, Bang JH, Kim YE, Kim MC, Oh KW, Lee SH, Kang JY. 3-Dimensional cell culture for on-chip differentiation of stem cells in embryoid body. Lab Chip 2011; 11:874-82. [PMID: 21249238 DOI: 10.1039/c0lc00516a] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
This paper proposes a microfluidic device for the on-chip differentiation of an embryoid body (EB) formed in a microwell via 3-dimensional cultures of mouse embryonic carcinoma (EC) cells. The device adjusted the size of the EB by fluid volume, differentiated the EB by chemical treatment, and evaluated its effects in EC cells by on-chip immunostaining. A microfluidic resistance network was designed to control the size of the embryoid body. The duration time and flow rate into each microwell regulated the initial number of trapped cells in order to adjust the size of the EB. The docked cells were aggregated and formed a spherical EB on the non-adherent surface of the culture chip for 3 days. The EC cells in the EB were then differentiated into diverse cell lineages without attachment for an additional 4 days; meanwhile, retinoic acid (RA) was applied without serum to direct the cells into early neuronal lineage. On-chip immunostaining of the EB in the microwell with a neuronal marker was conducted to assess the differentiation-inducing ability of RA. The effect of RA on neuronal differentiation was analyzed with confocal microscopic images of the TuJ1 marker. The RA-treated cells expressed more neuronal markers and appeared as mature neuronal cells with long neurites. The fluorescence intensity of the TuJ1 in the RA-treated EB was twice that observed in the non-treated EB on day 5. It was demonstrated that the pre-screening of inducing chemicals on the early neuronal differentiation of EC cells in a single microfluidic chip was indeed feasible. This chip is expected to constitute a useful tool for assessing the early differentiation of ES cells without attachment, and is also expected to prove useful as an anti-cancer drug test platform for the cytotoxicity assay with cellular spheroids.
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Affiliation(s)
- Choong Kim
- Nano-Bio Research Center, Korea Institute of Science Technology, 136-791 Seoul, Korea
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Tan T, Tang X, Zhang J, Niu Y, Chen H, Li B, Wei Q, Ji W. Generation of trophoblast stem cells from rabbit embryonic stem cells with BMP4. PLoS One 2011; 6:e17124. [PMID: 21359200 PMCID: PMC3040765 DOI: 10.1371/journal.pone.0017124] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Accepted: 01/21/2011] [Indexed: 01/28/2023] Open
Abstract
Trophoblast stem (TS) cells are ideal models to investigate trophectoderm differentiation and placental development. Herein, we describe the derivation of rabbit trophoblast stem cells from embryonic stem (ES) cells. Rabbit ES cells generated in our laboratory were induced to differentiate in the presence of BMP4 and TS-like cell colonies were isolated and expanded. These cells expressed the molecular markers of mouse TS cells, were able to invade, give rise to derivatives of TS cells, and chimerize placental tissues when injected into blastocysts. The rabbit TS-like cells maintained self-renewal in culture medium with serum but without growth factors or feeder cells, whilst their proliferation and identity were compromised by inhibitors of FGFs and TGF-β receptors. Taken together, our study demonstrated the derivation of rabbit TS cells and suggested the essential roles of FGF and TGF-β signalings in maintenance of rabbit TS cell self-renewal.
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Affiliation(s)
- Tao Tan
- Kunming Primate Research Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- Graduate School of Chinese Academy of Sciences, Beijing, China
- Yunnan Key Laboratory of Animal Reproductive Biology, Kunming, Yunnan, China
| | - Xianghui Tang
- Kunming Primate Research Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- Yunnan Key Laboratory of Animal Reproductive Biology, Kunming, Yunnan, China
| | - Jing Zhang
- Kunming Primate Research Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- Graduate School of Chinese Academy of Sciences, Beijing, China
- Yunnan Key Laboratory of Animal Reproductive Biology, Kunming, Yunnan, China
| | - Yuyu Niu
- Kunming Primate Research Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- Yunnan Key Laboratory of Animal Reproductive Biology, Kunming, Yunnan, China
| | - Hongwei Chen
- Kunming Primate Research Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- Graduate School of Chinese Academy of Sciences, Beijing, China
- Yunnan Key Laboratory of Animal Reproductive Biology, Kunming, Yunnan, China
| | - Bin Li
- Kunming Primate Research Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- Graduate School of Chinese Academy of Sciences, Beijing, China
- Yunnan Key Laboratory of Animal Reproductive Biology, Kunming, Yunnan, China
| | - Qiang Wei
- Kunming Primate Research Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- Graduate School of Chinese Academy of Sciences, Beijing, China
- Yunnan Key Laboratory of Animal Reproductive Biology, Kunming, Yunnan, China
| | - Weizhi Ji
- Kunming Primate Research Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
- Yunnan Key Laboratory of Animal Reproductive Biology, Kunming, Yunnan, China
- Kunming Biomed International, Kunming, Yunnan, China
- * E-mail:
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Lim HJ, Han J, Woo DH, Kim SE, Kim SK, Kang HG, Kim JH. Biochemical and morphological effects of hypoxic environment on human embryonic stem cells in long-term culture and differentiating embryoid bodies. Mol Cells 2011; 31:123-32. [PMID: 21347709 PMCID: PMC3932683 DOI: 10.1007/s10059-011-0016-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2010] [Revised: 11/06/2010] [Accepted: 11/17/2010] [Indexed: 12/17/2022] Open
Abstract
The mammalian reproductive tract is known to contain 1.5-5.3% oxygen (O(2)), but human embryonic stem cells (hESCs) derived from preimplantation embryos are typically cultured under 21% O(2) tension. The aim of this study was to investigate the effects of O(2) tension on the long-term culture of hESCs and on cell-fate determination during early differentiation. hESCs and embryoid bodies (EBs) were grown under different O(2) tensions (3, 12, and 21% O(2)). The expression of markers associated with pluripotency, embryonic germ layers, and hypoxia was analyzed using RTPCR, immunostaining, and Western blotting. Proliferation, apoptosis, and chromosomal aberrations were examined using BrdU incorporation, caspase-3 immunostaining, and karyotype analysis, respectively. Structural and morphological changes of EBs under different O(2) tensions were comparatively examined using azan- and hematoxylineosin staining, and scanning and transmission electron microscopy. Mild hypoxia (12% O(2)) increased the number of cells expressing Oct4/Nanog and reduced BrdU incorporation and aneuploidy. The percentage of cells positive for active caspase-3, which was high during normoxia (21% O(2)), gradually decreased when hESCs were continuously cultured under mild hypoxia. EBs subjected to hypoxia (3% O(2)) exhibited well-differentiated microvilli on their surface, secreted high levels of collagen, and showed enhanced differentiation into primitive endoderm. These changes were associated with increased expression of Foxa2, Sox17, AFP, and GATA4 on the EB periphery. Our data suggest that mild hypoxia facilitates the slow mitotic division of hESCs in long-term culture and reduces the frequency of chromosomal abnormalities and apoptosis. In addition, hypoxia promotes the differentiation of EBs into extraembryonic endoderm.
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Affiliation(s)
- Hee-Joung Lim
- Laboratory of Stem Cell Biology, Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Korea
- Biomedical Laboratory, Department of Biomedical Laboratory Science, College of Health Science, Eulji University, Sungnam 461-713, Korea
| | - Jiyou Han
- Laboratory of Stem Cell Biology, Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Korea
| | - Dong-Hun Woo
- Laboratory of Stem Cell Biology, Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Korea
| | - Sung-Eun Kim
- Laboratory of Stem Cell Biology, Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Korea
| | - Suel-Kee Kim
- Laboratory of Stem Cell Biology, Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Korea
| | - Hee-Gyoo Kang
- Biomedical Laboratory, Department of Biomedical Laboratory Science, College of Health Science, Eulji University, Sungnam 461-713, Korea
| | - Jong-Hoon Kim
- Laboratory of Stem Cell Biology, Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Korea
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Paul W, Sharma CP, Deb KD. Nature vs. nurture: gold perpetuates "stemness". J Stem Cells 2011; 6:181-198. [PMID: 23550337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Adult tissues contain quiescent reservoirs of multipotent somatic stem cells and pluripotent embryonic-like stem cells (ELSCs). Credited with regenerative properties gold is used across both -contemporary and -ancient medicines. Here, we show that gold exerted these effects by enhancing the pool of pluripotent ELSC while improving their stemness. We used hESCs as an in-vitro model to understand if gold could enhance self-renewal and pluripotency. Swarna-bhasma (SB), an ancient Indian gold microparticulate (41.1 nm), preparation, reduced spontaneous-differentiation, improved self-renewal, pluripotency and proliferation of hESCs. Colloidal gold-nanoparticles (GNP) (15.59 nm) were tested to confirm that the observations were attributable to nanoparticulate-gold. SB and GNP exposure: maintained -stemness, -karyotypic stability, enhanced pluripotency till day-12, increased average colony-sizes, and reduced the number of autonomously-derived differentiated FGFR1 positive fibroblast-niche-cells/colony. Particulate-gold induced upregulation of FGFR1 and IGF2 expression, and decrease in IGF1 secretion indicates IGF1/2 mediated support for enhanced pluripotency and self-renewal in hESCs.
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Affiliation(s)
- Willi Paul
- Division of Biosurface Technology, Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695012, India
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Abstract
Osteoblasts are the cells that contribute to the formation and function of bone tissue. Knowledge of their biology is important to understanding of the normal processes of bone repair, the development of diseases affecting bone tissue, and to the investigation of approaches to improve bone repair and to treat or prevent bone diseases. Osteoblasts can be readily isolated from bone tissues and grown in culture, and under relatively simple culture conditions, they will recapitulate many aspects of their normal biology. These culture conditions can be also applied to adult stem cells, such as mesenchymal/bone marrow stromal stem cells. More recently, these studies have been extended to include embryonic stem cells. This chapter provides detailed step-by-step protocols to investigate the differentiation of embryonic stem cells into osteoblasts. Several 2D and 3D culture methods are presented and enable comparisons to be made on the efficiency and mechanisms of osteogenic differentiation. Emphasis is also placed on methods to analyse and confirm osteogenic differentiation.
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Affiliation(s)
- Lee Buttery
- School of Pharmacy, Centre for Biomolecular Science, University of Nottingham, Nottingham, UK
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Qi H, Du Y, Wang L, Kaji H, Bae H, Khademhosseini A. Patterned differentiation of individual embryoid bodies in spatially organized 3D hybrid microgels. Adv Mater 2010; 22:5276-81. [PMID: 20941801 PMCID: PMC3013227 DOI: 10.1002/adma.201002873] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Affiliation(s)
- Hao Qi
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115 (USA); Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139 (USA)
| | - Yanan Du
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115 (USA); Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139 (USA); Biomedical Engineering, School of Medicine, Tsinghua University, Beijing (China)
| | - Lianyong Wang
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115 (USA); Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139 (USA); Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin (China)
| | - Hirokazu Kaji
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115 (USA); Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139 (USA); Department of Bioengineering and Robotics, Graduate School of Engineering, Tohoku University, Sendai (Japan)
| | - Hojae Bae
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115 (USA); Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139 (USA)
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Uroić DS, Baudouin G, Ferguson LA, Docherty HM, Vallier L, Docherty K. A factor(s) secreted from MIN-6 beta-cells stimulates differentiation of definitive endoderm enriched embryonic stem cells towards a pancreatic lineage. Mol Cell Endocrinol 2010; 328:80-6. [PMID: 20674663 DOI: 10.1016/j.mce.2010.07.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Revised: 06/03/2010] [Accepted: 07/13/2010] [Indexed: 10/19/2022]
Abstract
In the mouse the developing pancreas is controlled by contact with, and signalling molecules secreted from, surrounding cells. These factors are best studied using explant cultures of embryonic tissue. The present study was undertaken to determine whether embryonic stem (ES) cells could be used as an alternative model in vitro system to investigate the role of cell-cell interactions in the developing pancreas. Transwell culture experiments showed that MIN-6 beta-cells secreted a factor or factors that promoted differentiation of ES cell derived definitive endoderm enriched cells towards a pancreatic fate. Further studies using MIN-6 condition medium showed that the factor(s) involved was restricted to MIN-6 cells, could be concentrated with ammonium sulphate, and was sensitive to heat treatment, suggesting that it was a protein or peptide. Further analyses showed that insulin or proinsulin failed to mimic the effects of the conditioned media. Collectively, these results suggest that beta-cells secrete a factor(s) capable of controlling their own differentiation and maturation. The culture system described here presents unique advantages in the identification and characterisation of these factors.
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Affiliation(s)
- Daniela S Uroić
- School of Medical Sciences, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
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