Name: efficient neural differentiation using single-cell culture of human embryonic stem cells
Uploaded: 2020-01-18T13:00:00
Description: Watch this Scientific Journal Video about Efficient Neural Differentiation using Single-Cell Culture of Human Embryonic Stem Cells at JoVE.com

We thank Dr. Carl D. Bortner (NIEHS) for his assistance with the FACS analysis. This research was supported by the Intramural Research Program of the National Institute of Environmental Health Sciences, the National Institutes of Health, Z01-ES-101585 to AMJ.

1. Preparation of hESC-qualified Basement Membrane Matrix-coated Plates
<ol>
	<li>Slowly thaw the hESC-qualified basement membrane matrix (see Table of Materials) solution at 4 &#176;C for at least 2&#8211;3 h or overnight to avoid formation of a gel.</li>
	<li>To prepare basement membrane matrix-coated plates, dilute matrix in cold DMEM/F12 to a 2% final concentration. Mix well and coat each well of a 6 well plate with 1 mL of the diluted matrix solution.</li>
	<li>Incubate the basement membrane matri...

<ol>
	<li>Thomson, J. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Embryonic+stem+cell+lines+derived+from+human+blastocysts.">Embryonic stem cell lines derived from human blastocysts.</a> Science. 282 (5391), 1145-1147 (1998).</li><li>Rosler, E. S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Long-term+culture+of+human+embryonic+stem+cells+in+feeder-free+conditions.">Long-term culture of human embryonic stem cells in feeder-free conditions.</a> Developmental Dynamics. 229 (2), 259-274 (2004).</li><li>Mallon, B. S., Park, K. Y., Chen, K. G., Hamilton, R. S., McKay, R. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Toward+xeno-free+culture+of+human+embryonic+stem+cells.">Toward xeno-free culture of human embryonic stem cells.</a> The International Journal of Biochemistry &amp; Cell Biology. 38 (7), 1063-1075 (2006).</li><li>Hoffman, L. M., Carpenter, M. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Characterization+and+culture+of+human+embryonic+stem+cells.">Characterization and culture of human embryonic stem cells.</a> Nature Biotechnology. 23 (6), 699-708 (2005).</li><li>Yan, Y., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Efficient+and+rapid+derivation+of+primitive+neural+stem+cells+and+generation+of+brain+subtype+neurons+from+human+pluripotent+stem+cells.">Efficient and rapid derivation of primitive neural stem cells and generation of brain subtype neurons from human pluripotent stem cells.</a> Stem Cells Translational Medicine. 2 (11), 862-870 (2013).</li><li>Goncalves, J. T., Schafer, S. T., Gage, F. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adult+Neurogenesis+in+the+Hippocampus:+From+Stem+Cells+to+Behavior.">Adult Neurogenesis in the Hippocampus: From Stem Cells to Behavior.</a> Cell. 167 (4), 897-914 (2016).</li><li>Watanabe, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+ROCK+inhibitor+permits+survival+of+dissociated+human+embryonic+stem+cells.">A ROCK inhibitor permits survival of dissociated human embryonic stem cells.</a> Nature Biotechnology. 25 (6), 681-686 (2007).</li><li>International Stem Cell Initiative. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Characterization+of+human+embryonic+stem+cell+lines+by+the+International+Stem+Cell+Initiative.">Characterization of human embryonic stem cell lines by the International Stem Cell Initiative.</a> Nature Biotechnology. 25 (7), 803-816 (2007).</li><li>Hartung, O., Huo, H., Daley, G. Q., Schlaeger, T. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Clump+passaging+and+expansion+of+human+embryonic+and+induced+pluripotent+stem+cells+on+mouse+embryonic+fibroblast+feeder+cells.">Clump passaging and expansion of human embryonic and induced pluripotent stem cells on mouse embryonic fibroblast feeder cells.</a> Current Protocols in Stem Cell Biology. 14 (1), 10 (2010).</li><li>Chen, K. G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Non-colony+type+monolayer+culture+of+human+embryonic+stem+cells.">Non-colony type monolayer culture of human embryonic stem cells.</a> Stem Cell Research. 9 (3), 237-248 (2012).</li><li>Chen, G., Hou, Z., Gulbranson, D. R., Thomson, J. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Actin-myosin+contractility+is+responsible+for+the+reduced+viability+of+dissociated+human+embryonic+stem+cells.">Actin-myosin contractility is responsible for the reduced viability of dissociated human embryonic stem cells.</a> Cell Stem Cell. 7 (2), 240-248 (2010).</li><li>Li, X., Krawetz, R., Liu, S., Meng, G., Rancourt, D. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=ROCK+inhibitor+improves+survival+of+cryopreserved+serum/feeder-free+single+human+embryonic+stem+cells.">ROCK inhibitor improves survival of cryopreserved serum/feeder-free single human embryonic stem cells.</a> Human Reproduction. 24 (3), 580-589 (2009).</li><li>Ohgushi, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Molecular+pathway+and+cell+state+responsible+for+dissociation-induced+apoptosis+in+human+pluripotent+stem+cells.">Molecular pathway and cell state responsible for dissociation-induced apoptosis in human pluripotent stem cells.</a> Cell Stem Cell. 7 (2), 225-239 (2010).</li><li>Pakzad, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Presence+of+a+ROCK+inhibitor+in+extracellular+matrix+supports+more+undifferentiated+growth+of+feeder-free+human+embryonic+and+induced+pluripotent+stem+cells+upon+passaging.">Presence of a ROCK inhibitor in extracellular matrix supports more undifferentiated growth of feeder-free human embryonic and induced pluripotent stem cells upon passaging.</a> Stem Cell Reviews and Reports. 6 (1), 96-107 (2010).</li><li>Chambers, S. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Highly+efficient+neural+conversion+of+human+ES+and+iPS+cells+by+dual+inhibition+of+SMAD+signaling.">Highly efficient neural conversion of human ES and iPS cells by dual inhibition of SMAD signaling.</a> Nature Biotechnology. 27 (3), 275-280 (2009).</li><li>Jeon, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=GLIS3+Transcriptionally+Activates+WNT+Genes+to+Promote+Differentiation+of+Human+Embryonic+Stem+Cells+into+Posterior+Neural+Progenitors.">GLIS3 Transcriptionally Activates WNT Genes to Promote Differentiation of Human Embryonic Stem Cells into Posterior Neural Progenitors.</a> Stem Cells. 37 (2), 202-215 (2019).</li><li>Emre, N., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+ROCK+inhibitor+Y-27632+improves+recovery+of+human+embryonic+stem+cells+after+fluorescence-activated+cell+sorting+with+multiple+cell+surface+markers.">The ROCK inhibitor Y-27632 improves recovery of human embryonic stem cells after fluorescence-activated cell sorting with multiple cell surface markers.</a> PLoS ONE. 5 (8), e12148 (2010).</li><li>Hanna, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Human+embryonic+stem+cells+with+biological+and+epigenetic+characteristics+similar+to+those+of+mouse+ESCs.">Human embryonic stem cells with biological and epigenetic characteristics similar to those of mouse ESCs.</a> Proceedings of the National Academy of Sciences of the United States of America. 107 (20), 9222-9227 (2010).</li><li>Saha, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Surface-engineered+substrates+for+improved+human+pluripotent+stem+cell+culture+under+fully+defined+conditions.">Surface-engineered substrates for improved human pluripotent stem cell culture under fully defined conditions.</a> Proceedings of the National Academy of Sciences of the United States of America. 108 (46), 18714-18719 (2011).</li><li>Tsutsui, H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+optimized+small+molecule+inhibitor+cocktail+supports+long-term+maintenance+of+human+embryonic+stem+cells.">An optimized small molecule inhibitor cocktail supports long-term maintenance of human embryonic stem cells.</a> Nature Communications. 2, 167 (2011).</li><li>Xu, Y., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Revealing+a+core+signaling+regulatory+mechanism+for+pluripotent+stem+cell+survival+and+self-renewal+by+small+molecules.">Revealing a core signaling regulatory mechanism for pluripotent stem cell survival and self-renewal by small molecules.</a> Proceedings of the National Academy of Sciences of the United States of America. 107 (18), 8129-8134 (2010).</li><li>Ungrin, M. D., Joshi, C., Nica, A., Bauwens, C., Zandstra, P. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Reproducible,+ultra+high-throughput+formation+of+multicellular+organization+from+single+cell+suspension-derived+human+embryonic+stem+cell+aggregates.">Reproducible, ultra high-throughput formation of multicellular organization from single cell suspension-derived human embryonic stem cell aggregates.</a> PLoS ONE. 3 (2), e1565 (2008).</li><li>Kim, D. S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Highly+pure+and+expandable+PSA-NCAM-positive+neural+precursors+from+human+ESC+and+iPSC-derived+neural+rosettes.">Highly pure and expandable PSA-NCAM-positive neural precursors from human ESC and iPSC-derived neural rosettes.</a> PLoS ONE. 7 (7), e39715 (2012).</li><li>Sun, Y., Hu, J., Zhou, L., Pollard, S. M., Smith, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Interplay+between+FGF2+and+BMP+controls+the+self-renewal,+dormancy+and+differentiation+of+rat+neural+stem+cells.">Interplay between FGF2 and BMP controls the self-renewal, dormancy and differentiation of rat neural stem cells.</a> Journal of Cell Science. 124 (Pt 11), 1867-1877 (2011).</li><li>Zhou, J. M., Chu, J. X., Chen, X. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+improved+protocol+that+induces+human+embryonic+stem+cells+to+differentiate+into+neural+cells+in+vitro.">An improved protocol that induces human embryonic stem cells to differentiate into neural cells in vitro.</a> Cell Biology International. 32 (1), 80-85 (2008).</li><li>Smith, J. R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Inhibition+of+Activin/Nodal+signaling+promotes+specification+of+human+embryonic+stem+cells+into+neuroectoderm.">Inhibition of Activin/Nodal signaling promotes specification of human embryonic stem cells into neuroectoderm.</a> Developmental Biology. 313 (1), 107-117 (2008).</li></ol>

Scalable and efficient methods for the differentiation of hESCs into various lineages and the generation of sufficient numbers of differentiated cells are important criteria for drug screening and stem cell therapy. Various single-cell passing methods have been published, in which cells are cultured in the presence of ROCK inhibitor or other small molecules to improve survival, but the final products of these culture methods are colony type hESCs17,18,...

Human embryonic stem cells (hESCs) have the potential to differentiate into the three primary germ layers, which then differentiate into various multipotent progenitor cell lineages. These lineages subsequently give rise to all cell types in the human body. In vitro hESC culture systems have transformed the ability to study human embryonic development and have served as a valuable tool for obtaining new insights into how these processes are regulated at the biological and molecular levels. Similarly, studies of induced pluripotent stem cells (iPSCs) generated from reprogramming somatic cells isolated from human patients provide novel insights into various diseases. In addition, progenitor and differentiated cells derived from hESCs can be useful for research involving stem cell therapy and drug screening1,2,3,4.
hESCs can be induced to differentiate into neural progenitor cells (NPCs), which are multipotential cells with an extensive self-renewal capacity. Subsequently, these cells can be differentiated into neurons, astrocytes, and oligodendrocytes5,6. NPCs also offer a cellular system for in vitro studies of neurodevelopmental biology and various neurological diseases. However, current colony type culture methods involving hESCs and their differentiation into NPCs are inefficient and often involve coculture as well as embryoid body (EB) and rosette formation5,7,8,9. These protocols exhibit lower survival rates and spontaneous differentiation and are more time-consuming.
Presented here is an improved and robust culture system that is easily scalable and uses high density single-cell type culture of hESCs10. The inclusion of Roh-kinase (ROCK) inhibitor contributed to significantly enhanced survival efficiency during single cell type culture of hESC10,11,12,13,14. In this culture system, hESCs can be easily maintained and expanded. In addition, the protocol presents an efficient method to generate NPCs from single-cell type culture of hESCs, which allows the production of highly pure NPCs. Inhibition of BMP/TGF&#946;/activin signaling pathways with ALK inhibitors efficiently induce differentiation of single-cell type hESCs into NPCs15,16, which then can be induced to differentiate into functional neural lineages, such as dopaminergic neurons and astrocytes.
In summary, the single-cell type culture protocol using hESCs offers an attractive model to study the differentiation of these cells into various lineages, including NPCs. This protocol is easily scalable and therefore suitable for generating cells for research involving regenerative therapy and drug screening.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>35 mm m-dishes</td>
			<td>ibidi</td>
			<td>81156</td>
			<td>Cell culture dish</td>
		</tr>
		<tr>
			<td>6-well plates</td>
			<td>Corning</td>
			<td>3516</td>
			<td></td>
		</tr>
		<tr>
			<td>Accutase</td>
			<td>Innovative Cell Technologies</td>
			<td>AT104-500</td>
			<td>Cell detachment solution</td>
		</tr>
		<tr>
			<td>Activin A</td>
			<td>R&#38;D system</td>
			<td>338-AC-050</td>
			<td></td>
		</tr>
		<tr>
			<td>Ascorbic Acid</td>
			<td>Sigma Aldrich</td>
			<td>A4403</td>
			<td></td>
		</tr>
		<tr>
			<td>B27 supplement</td>
			<td>Thermo Fisher</td>
			<td>17504044</td>
			<td></td>
		</tr>
		<tr>
			<td>B27 supplement (-Vit A)</td>
			<td>Thermo Fisher</td>
			<td>12587010</td>
			<td></td>
		</tr>
		<tr>
			<td>BDNF</td>
			<td>Applied Biological Materials</td>
			<td>Z100065</td>
			<td></td>
		</tr>
		<tr>
			<td>bFGF</td>
			<td>Peprotech</td>
			<td>100-18C</td>
			<td></td>
		</tr>
		<tr>
			<td>Centrifuge</td>
			<td>DAMON/ICE</td>
			<td>428-6759</td>
			<td></td>
		</tr>
		<tr>
			<td>CO2 incubator</td>
			<td>Thermo Fisher</td>
			<td>4110</td>
			<td></td>
		</tr>
		<tr>
			<td>Corning hESC-qulified Matrix (Magrigel)</td>
			<td>Corning</td>
			<td>354277</td>
			<td>Basement membrane matrix (used for most of the protocol here)</td>
		</tr>
		<tr>
			<td>Cryostor CS 10</td>
			<td>Stemcell Technologies</td>
			<td>7930</td>
			<td>Cell freezing solution</td>
		</tr>
		<tr>
			<td>Dispase</td>
			<td>Stemcell Technologies</td>
			<td>7923</td>
			<td></td>
		</tr>
		<tr>
			<td>DMEM</td>
			<td>Thermo Fisher</td>
			<td>10569-010</td>
			<td></td>
		</tr>
		<tr>
			<td>DMEM/F12</td>
			<td>Thermo Fisher</td>
			<td>10565-018</td>
			<td></td>
		</tr>
		<tr>
			<td>Dorsomorphin</td>
			<td>Tocris</td>
			<td>3093</td>
			<td></td>
		</tr>
		<tr>
			<td>EGF</td>
			<td>Peprotech</td>
			<td>AF-100-16A</td>
			<td></td>
		</tr>
		<tr>
			<td>Fetal Bovine Serum</td>
			<td>Fisher Scientific</td>
			<td>SH3007003HI</td>
			<td></td>
		</tr>
		<tr>
			<td>FGF8</td>
			<td>Applied Biological Materials</td>
			<td>Z101705</td>
			<td></td>
		</tr>
		<tr>
			<td>GDNF</td>
			<td>Applied Biological Materials</td>
			<td>Z101057</td>
			<td></td>
		</tr>
		<tr>
			<td>Geltrex matrix</td>
			<td>Thermo Fisher</td>
			<td>A1569601</td>
			<td>Basement membrane matrix</td>
		</tr>
		<tr>
			<td>GlutaMax</td>
			<td>Thermo Fisher</td>
			<td>35050061</td>
			<td>Glutamine supplement, 100X</td>
		</tr>
		<tr>
			<td>H9 (WA09) human embryonic stem cell line</td>
			<td>WiCell</td>
			<td>WA09</td>
			<td></td>
		</tr>
		<tr>
			<td>Heregulin b-1</td>
			<td>Peprotech</td>
			<td>100-3</td>
			<td></td>
		</tr>
		<tr>
			<td>IGF</td>
			<td>Peprotech</td>
			<td>100-11</td>
			<td></td>
		</tr>
		<tr>
			<td>Knockout DMEM</td>
			<td>Thermo Fisher</td>
			<td>10829018</td>
			<td></td>
		</tr>
		<tr>
			<td>Knockout Serum Replacement</td>
			<td>Thermo Fisher</td>
			<td>10828028</td>
			<td></td>
		</tr>
		<tr>
			<td>Laminin</td>
			<td>Sigma Aldrich</td>
			<td>L2020</td>
			<td></td>
		</tr>
		<tr>
			<td>mTeSR1</td>
			<td>Stemcell Technologies</td>
			<td>85850</td>
			<td>hESC culture medium</td>
		</tr>
		<tr>
			<td>N2 supplement</td>
			<td>Thermo Fisher</td>
			<td>17502001</td>
			<td></td>
		</tr>
		<tr>
			<td>NEAA</td>
			<td>Thermo Fisher</td>
			<td>11140050</td>
			<td></td>
		</tr>
		<tr>
			<td>Neurobasal</td>
			<td>Thermo Fisher</td>
			<td>21103049</td>
			<td></td>
		</tr>
		<tr>
			<td>Poly-L-ornithine</td>
			<td>Sigma Aldrich</td>
			<td>P3655</td>
			<td></td>
		</tr>
		<tr>
			<td>ROCK inhibitor</td>
			<td>Tocris</td>
			<td>1254</td>
			<td></td>
		</tr>
		<tr>
			<td>SB431542</td>
			<td>Tocris</td>
			<td>1614</td>
			<td></td>
		</tr>
		<tr>
			<td>SHH</td>
			<td>Applied Biological Materials</td>
			<td>Z200617</td>
			<td></td>
		</tr>
		<tr>
			<td>Stemdiff Neural Progenitor medium</td>
			<td>Stemcell Technologies</td>
			<td>5833</td>
			<td>NPC expansion medium</td>
		</tr>
	</tbody>
</table>

efficient neural differentiation using single-cell culture of human embryonic stem cells

In vitro differentiation of human embryonic stem cells (hESCs) has transformed the ability to study human development on both biological and molecular levels and provided cells for use in regenerative applications. Standard approaches for hESC culture using colony type culture to maintain undifferentiated hESCs and embryoid body (EB) and rosette formation for differentiation into different germ layers are inefficient and time-consuming. Presented here is a single-cell culture method using hESCs instead of a colony-type culture. This method allows maintenance of the characteristic features of undifferentiated hESCs, including expression of hESC markers at levels comparable to colony type hESCs. In addition, the protocol presents an efficient method for neural progenitor cell (NPC) generation from single-cell type hESCs that produces NPCs within 1 week. These cells highly express several NPC marker genes and can differentiate into various neural cell types, including dopaminergic neurons and astrocytes. This single-cell culture system for hESCs will be useful in investigating the molecular mechanisms of these processes, studies of certain diseases, and drug discovery screens.

Presented here is an improved protocol for the maintenance and expansion of single-cell type culture of hESCs and their efficient differentiation into neural progenitor cells, which subsequently differentiates into various downstream neural lineages, including dopaminergic neurons and astrocytes.
Representative phase contrast images show cell morphology at different steps during the adaptation of colony type hESCs to the single-cell type culture (Figure 1A...

Watch this Scientific Journal Video about Efficient Neural Differentiation using Single-Cell Culture of Human Embryonic Stem Cells at JoVE.com

Efficient Neural Differentiation using Single-Cell Culture of Human Embryonic Stem Cells

Presented here is a protocol for the generation of a single-cell culture of human embryonic stem cells and their subsequent differentiation into neural progenitor cells. The protocol is simple, robust, scalable, and suitable for drug screening and regenerative medicine applications.

In vitro differentiation of human embryonic stem cells (hESCs) has transformed the ability to study human development on both biological and molecular ...

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Analysis of Retinoic Acid-induced Neural Differentiation of Mouse Embryonic Stem Cells in Two and Three-dimensional Embryoid Bodies

Mouse embryonic stem cells (ESCs) isolated from the inner mass of the blastocyst (typically at day E3.5), can be used as in vitro model system for ...

Rapid, Directed Differentiation of Retinal Pigment Epithelial Cells from Human Embryonic or Induced Pluripotent Stem Cells

We describe a robust method to direct the differentiation of pluripotent stem cells into retinal pigment epithelial cells (RPE). The purpose of providing ...

Single-cell Photoconversion in Living Intact Zebrafish

Animal and plant tissue is composed of distinct populations of cells. These cells interact over time to build and maintain the tissue and can cause ...

Efficient and Scalable Directed Differentiation of Clinically Compatible Corneal Limbal Epithelial Stem Cells from Human Pluripotent Stem Cells

Corneal limbal epithelial stem cells (LESCs) are responsible for continuously renewing the corneal epithelium, and thus maintaining corneal homeostasis ...