Name: integration free derivation of human induced pluripotent stem cells using laminin 521 matrix
Uploaded: 2017-07-07T15:00:00
Description: Watch this Scientific Journal Video about Integration Free Derivation of Human Induced Pluripotent Stem Cells Using Laminin 521 Matrix at JoVE.com

Este trabajo fue apoyado por los agentes de financiación SSF (B13-0074) y VINNOVA (2016-04134).

La recopilación de material para pacientes y la derivación de las células del hiPS es aprobada por la Junta de Revisión de Ética, Estocolmo, 28 de marzo de 2012, Número de registro: 2012 / 208-31 / 3. Los pasos de cultivo celular deben realizarse en los gabinetes de seguridad de la biotecnología a menos que se indique lo contrario. Siempre practique técnicas de manejo estériles cuando trabaje con células. Deje que los medios, placas y reactivos alcancen la temperatura ambiente antes de comenzar. Incubar las c?...

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J., Muotri, A., Gage, F., Varki, A. <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+express+an+immunogenic+nonhuman+sialic+acid.">Human embryonic stem cells express an immunogenic nonhuman sialic acid.</a> Nat Med. 11 (2), 228-232 (2005).</li><li>Kele, 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=Generation+of+human+iPS+cell+line+CTL07-II+from+human+fibroblasts,+under+defined+and+xeno-free+conditions.">Generation of human iPS cell line CTL07-II from human fibroblasts, under defined and xeno-free conditions.</a> Stem Cell Research. 17 (3), 474-478 (2016).</li><li>Uhlin, E., 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=Derivation+of+human+iPS+cell+lines+from+monozygotic+twins+in+defined+and+xeno+free+conditions.">Derivation of human iPS cell lines from monozygotic twins in defined and xeno free conditions.</a> Stem Cell Research. 18, 22-25 (2017).</li><li>. Biosafety in Microbiological and Biomedical Laboratories Available from: <a target="_blank" href="https://www.cdc.gov/biosafety/publications/bmbl5/bmbl.pdf">https://www.cdc.gov/biosafety/publications/bmbl5/bmbl.pdf</a> (2009)</li><li>Itskovitz-Eldor, 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=Differentiation+of+human+embryonic+stem+cells+into+embryoid+bodies+compromising+the+three+embryonic+germ+layers.">Differentiation of human embryonic stem cells into embryoid bodies compromising the three embryonic germ layers.</a> Mol Med. 6 (2), 88-95 (2000).</li><li>Chen, K. G., Mallon, B. S., McKay, R. D., Robey, P. 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El resultado esperado de este protocolo es la generación exitosa de varias líneas celulares de hiPS derivadas clonalmente. Es importante destacar que el método para el mantenimiento y la expansión de las células hiPS establecidas aquí descritas es fiable y puede realizarse con poca experiencia previa de cultivo de células madre. Se sabe que el paso de células únicas enzimáticas con ROCKi junto con la matriz LN-521 mantiene las células como cariotipicamente normales, pluripotentes y fácilmente capaces de dife...

Desde la primera derivación de las líneas de células HiPS por Takahashi et al. 1 , 2 , HiPS células han proporcionado una herramienta útil para la enfermedad de modelado, descubrimiento de fármacos y como material de origen para la generación de terapias celulares en la medicina regenerativa [ 3] . El cultivo de células hiPS ha dependido durante mucho tiempo del co-cultivo con células alimentadoras de fibroblastos 4 , 5 o en Matrigel 6 y con formulaciones de medios que contienen suero fetal bovino (FBS). Las variaciones de lote a lote son una consecuencia común de la naturaleza indefinida de estas condiciones de cultivo, lo que resulta en variaciones impredecibles, lo que es un contribuyente importante a la falta de fiabilidad de estos protocolos 7 . El desarrollo de un medio definido tal como Essential 8 (E8) 8 y matrices de cultivo celular definidas por ejemplo LN-521 9 , permitenS para el establecimiento de protocolos altamente reproducibles y ayuda en la robusta generación y mantenimiento de células hoPS homogéneas 7 , 8 , 9 , 10 . El desarrollo de técnicas de reprogramación libres de integración ha sido un salto adelante. Originalmente, la reprogramación dependía de los vectores retrovirales que se integraron al azar en el genoma con efectos perjudiciales sobre la integridad genómica [ 11] . Los avances en las metodologías de reprogramación incluyen el desarrollo de vectores basados ​​en ARN. Los vectores de ARN tienen una ventaja sobre el método de reprogramación basado en el ADN como la integración no intencional a través de la recombinación genómica no es posible [ 12] . Los vectores SeV proporcionan una expresión alta y transitoria de factores exógenos a través de ARN monocatenario sin una fase de ADN 11 . Los vectores de reprogramación entregados por el SeVSe diluyen a lo largo de la expansión celular y eventualmente se desprenden del cultivo proporcionando una forma libre de reprogramación. Posteriormente, el mantenimiento de la pluripotencia depende de la expresión endógena de los genes de pluripotencia [ 2] . Como las terapias pioneras basadas en células de HiPS están comenzando a entrar en ensayos clínicos, las demandas de lotes estandarizados, reproducibilidad y seguridad son cuestiones esenciales para abordar. Por lo tanto, deben evitarse los productos de origen animal. Por ejemplo, el uso de productos xenogénicos se ha asociado con el riesgo de contaminación no humana de patógenos. Además, se ha demostrado que las células cultivadas en presencia de componentes de cultivo derivados de animales incorporan ácidos siliacos no humanos en las membranas celulares, lo que amenaza con hacer que las células derivadas sean inmunogénicas 14 . Por lo tanto, la necesidad de eliminar los productos xenogénicos es necesaria para cualquier actividad clínica futura. Este protocolo se aplica xeNo-libre y definido en el mantenimiento de las células HiPS celdas móviles más cerca de cumplimiento clínico. Este protocolo describe un método consistente, altamente reproducible y fácil de usar que genera células hiPS estandarizadas a partir de fibroblastos. También ofrece un sistema de cultivo de fácil manejo para el mantenimiento de las células hiPS establecidas. Este protocolo se ha utilizado para derivar más de 300 líneas celulares hiPS en la instalación nacional sueca de iPS core humano en el Instituto Karolinska, de la cual algunas líneas se han descrito previamente 15 , 16 .

<table border="0" cellpadding="0" cellspacing="0" width="711">
	<tbody>
		<tr height="20">
			<td height="20" style="height:20px;width:216px;">Dispase</td>
			<td style="width:155px;">Life Technologies</td>
			<td style="width:119px;">171105-041</td>
			<td style="width:223px;">Biopsy digestion</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Collagenase</td>
			<td>Sigma</td>
			<td>C0130</td>
			<td>Biopsy digestion</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Gelatin</td>
			<td>Sigma</td>
			<td>G1393</td>
			<td>Fibroblast matrix</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">IMDM</td>
			<td>Life Technologies</td>
			<td>21980002-032</td>
			<td>Fibroblast medium</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">FBS</td>
			<td>Invitrogen</td>
			<td>10270106</td>
			<td>Fibroblast medium</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">PenicillinStreptomycin</td>
			<td>Life Technologies</td>
			<td>15070-063</td>
			<td>Antibiotic</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Essential 8 media</td>
			<td>ThermFisher Scientific</td>
			<td>A1517001</td>
			<td>iPS cell culture media</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">LN-521</td>
			<td>Biolamina</td>
			<td>LN521-03</td>
			<td>iPS cell culture matrix</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">TrypLE select 1X</td>
			<td>ThermoFisher Scientific</td>
			<td>12563011</td>
			<td>Dissociation reagent</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Rho-kinase inhibitor Y27632</td>
			<td>Millipore</td>
			<td>SCM075</td>
			<td>Rho-kinase inhibitor (ROCKi)</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">CytoTune &#8211; iPS 2.0 reprogramming kit</td>
			<td>Life Technologies</td>
			<td>A1377801</td>
			<td>Sendai virus reprogramming vector</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">35 mm tissue culture dish</td>
			<td>Sarstedt</td>
			<td>83.3900.300</td>
			<td>Cell culture</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">60 mm tissue culture dishes</td>
			<td>Sarstedt</td>
			<td>83.3901.300</td>
			<td>Cell culture</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">24 well tissue culture plates</td>
			<td>Sarstedt</td>
			<td>83.3922.300</td>
			<td>Cell culture</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">T25 tissue culture flasks</td>
			<td>VWR</td>
			<td>734-2311</td>
			<td>Cell culture</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">15 ml tubes</td>
			<td>Corning</td>
			<td>430791</td>
			<td>Centrifuge tubes</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">1.5 ml tube</td>
			<td>Eppendorf</td>
			<td>0030123.301</td>
			<td>1.5 ml tube</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">CoolCell cell LX</td>
			<td>Biocision</td>
			<td>BCS-405</td>
			<td>Freezing container</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">DMSO</td>
			<td>Sigma</td>
			<td>D2650-100ml</td>
			<td>Fibroblast freezing</td>
		</tr>
		<tr height="44">
			<td height="44" style="height:44px;">Cryovials 1.8 ml</td>
			<td>VWR</td>
			<td>479-6847</td>
			<td>Cryovials</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">PSC Cryopreservation Kit</td>
			<td>Gibco</td>
			<td>A2644601</td>
			<td>PSC CryomediumRevitaCell supplement</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Trypsin-EDTA (0.05%)</td>
			<td>ThermoFisherScientific</td>
			<td>25300054</td>
			<td>Fibroblast dissociation enzyme</td>
		</tr>
		<tr height="20">
			<td height="40" style="height:40px;">DMEM/F12</td>
			<td>Life Technologies</td>
			<td>31331-028</td>
			<td>Digestive enzymes dilutant</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">DPBS</td>
			<td>Life Technologies</td>
			<td>14190-094</td>
			<td>PBS</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">HBSS</td>
			<td>ThermoFIsher Scientific</td>
			<td>14025-050</td>
			<td>Biopsy preparation</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Haemocytometer</td>
			<td style="width:155px;">Sigma</td>
			<td style="width:119px;">BRAND, 718920</td>
			<td>Cell counting</td>
		</tr>
	</tbody>
</table>

integration free derivation of human induced pluripotent stem cells using laminin 521 matrix

Las condiciones sin Xeno y completamente definidas son parámetros clave para la generación robusta y reproducible de células de vástago pluripotentes inducidas por humanos (HiPS) homogéneas. El mantenimiento de células hiPS en células alimentadoras o matrices indefinidas son susceptibles a variaciones en lotes, contaminación patógena y riesgo de inmunogenicidad. La utilización de la matriz de laminina 521 (LN-521) humana recombinante definida en combinación con formulaciones de medios sin xeno y definidas reduce la variabilidad y permite la generación consistente de células hiPS. El virus Sendai (SeV) vector es un no-integrar RNA-basado en el sistema, evitando así las preocupaciones asociadas con el potencial efecto disruptivo sobre la integridad del genoma integrar vectores pueden tener. Además, estos vectores han demostrado una eficacia relativamente alta en la reprogramación de fibroblastos dérmicos. Además, el paso enzimático de celdas individuales facilita el mantenimiento homogéneo de las células HiPS sin experiencia previaLl cultura. Aquí se describe un protocolo que ha sido ampliamente probado y desarrollado con un enfoque en la reproducibilidad y facilidad de uso, proporcionando una manera robusta y práctica para generar definido y xeno-libre humanos hiPS células de fibroblastos.

De la biopsia a las células HiPS Todo el proceso desde la biopsia hasta las células hiPS establecidas, desprotegido del vector de reprogramación y listo para su caracterización, toma aproximadamente 16 semanas ( Figura 1 ). En la Figura 2A se especifica un cronograma más detallado. Se necesitan aproximadamente 4 semanas para establecer y expandir los cultivos de fib...

Watch this Scientific Journal Video about Integration Free Derivation of Human Induced Pluripotent Stem Cells Using Laminin 521 Matrix at JoVE.com

Integration Free Derivation of Human Induced Pluripotent Stem Cells Using Laminin 521 Matrix

derivación robusta de las células inducido por el hombre pluripotentes madre (HIPS) se logró mediante el uso de no-integración de virus Sendai (SeV) vector reprogramación mediada de fibroblastos dérmicos. el mantenimiento de células caderas y la expansión clonal se realizó utilizando condiciones de cultivo libre de xeno y definidos químicamente con laminina humana recombinante 521 (LN-521) de matriz y esencial E8 (E8) Medium.

Integración Derivación Gratuita de Células Madre Pluripotentes Inducidas Humanas Usando Laminin 521 Matrix

Xeno-free and fully defined conditions are key parameters for robust and reproducible generation of homogenous human induced pluripotent stem (hiPS) ...

The overall goal of this protocol is to derive homogenous human induced pluripotent stem cells. This method can be used to derive human induced pluripotent stem cells for many purposes including disease modeling, drug screening, or to derive cells for preclinical cell therapy trials. The advantage of this protocol is that it's robust and generates homogenous cells that are maintained in a user-friendly, Xeno-free, and fully chemically defined culture system.Since human iPS cells recapitulate the genetic background of the donor tissue and can potentially be differentiated into any disease-relevant cell type, they provide excellent tools for thesis modeling. The biopsy dissection and colony picking are intricate procedures. Seeing them performed with experienced hands assists in the understanding of the procedures and makes it easier to repeat.Demonstrating the procedure today will be Harriet RonnHolm and Kelly Day, two highly experienced laboratory technicians from the iPS Core Facility at Karolinska Institutet. Skin biopsy samples can be stored in PBS plus 1%penicillin streptomycin for up to 48 hours at four degrees Celsius, but should be processed as fast as possible after being obtained. Transfer the biopsy to a 35 millimeter dish.Submerge the skin biopsy in a 35 millimeter dish with two milliliters of 70%ethanol for 30 seconds. Add one milliliter of sterile Hank's Balanced Salt Solution supplemented with 1%penicillin streptomycin to a new 35 millimeter dish and transfer the biopsy to the new dish. Transfer the biopsy to a four 35 millimeter dish filled with one milliliter of freshly-prepared 0.1%dispase solution.Using sterile surgical scalpels and forceps, cut the skin biopsy into one to two cubic millimeter pieces. Transfer the biopsy pieces with the dispase solution into a 15 milliliter tube and add an additional two milliliters of dispase. Rinse the 35 millimeter dish with one milliliter of dispase solution and transfer the rinsed solution to the 15 milliliter tube.Incubate the biopsy at four degrees Celsius overnight. On the following morning, add four milliliters of 0.1%collagenase I to the tube with the biopsy pieces and incubate at 37 degrees Celsius for four hours. Thirty minutes prior to seeding the cells, coat one well in a six-well tissue culture plate with one milliliter of 0.1%gelatin in DPBS.Incubate at room temperature for 30 minutes. After four hours of incubation with collagenase, centrifuge the digested cells at 300 times g for three minutes at room temperature. Aspirate the supernatant and resuspend the digest in two milliliters of fibroblast medium.Remove the gelatin solution from the previously prepared six-well tissue culture plate. Transfer the cell suspension including any remaining tissue pieces to the six-well plate. Incubate the cells at 37 degrees Celsius and 5%carbon dioxide in high humidity.Fibroblasts are ready to be passaged to a T25 tissue culture flask when 80%confluent. Fibroblasts at passage two to four are optimal for reprogramming since reprogramming efficiency is generally higher for lower passage fibroblasts. Aspirate the cell culture medium from the flask and wash the cells with one milliliter of DPBS.Aspirate the DPBS and add one milliliter of 0.5%Trypsin EDTA. Incubate at 37 degrees Celsius for five minutes or until cells are detached. Add two milliliters of fibroblast medium, resuspend the cells, and transfer the cell suspension to a 15 milliliter tube.Centrifuge at 300 times g for three minutes at room temperature. Aspirate the supernatant and resuspend the pellet in two milliliters of fibroblast medium. After counting the fibroblasts using a hemacytometer, seed fives times 10 to the fourth cells in one well of a 24-well tissue culture plate.Incubate cells at 37 degrees Celsius overnight. On the following day, because Sendai virus will be handled, continue the procedure in a designated BSL-2 laboratory while using the appropriate personal protective equipment. Aspirate the cell culture medium and add 250 microliters of Sendai virus solution.Incubate the plate at 37 degrees Celsius. One day before picking the colonies, prepare LN-521 coated 24-well tissue culture plates. Pipette 250 microliters of LN-521 solution into one well of a 24-well plate.Seal the plate using parafilm and incubate at four degrees Celsius overnight. On the following day, aspirate the LN-521 solution from the one well of the 24-well plate and add 500 microliters of E8 into the well. The use of a hairnet and procedure mask is recommended while picking colonies under the stereo microscope.Colonies are ready to be picked when they reach a size of greater than one millimeter in diameter, display sharp edges, and are growing in homogenous monolayers. Do not pick colonies with fuzzy borders and large uncompact heterogeneous cell masses. Cut each colony with a scalpel into smaller pieces in a grid-like pattern.Use a 200 microliter pipette to mechanically scrape the cell sheets from the dish and then transfer the sheet to a well of a 24-well tissue culture plate previously coated with LN-521. Colony selection is critical for the success of this protocol. Picking a few additional colonies will ensure attachment in sufficient numbers.Allow the cells to attach without changing the E8 medium for 48 hours. Enzymatically passage the cells when the colonies have reached a size of greater than five millimeters. Aspirate the cell culture medium from the cells and wash with 250 microliters of DPBS.Aspirate the DPBS and add 250 microliters of dissociation reagent. Incubate at 37 degrees Celsius for three minutes. Observe that the cells have started to round up.Detach cells from the plate by rinsing the cells with dissociation reagent. Add 500 microliters of E8 medium to a 15 milliliter tube and transfer the cells and the dissociation reagent to the tube. Centrifuge at 300 times g for three minutes.Aspirate the supernatant from the 15 milliliter tube and resuspend the cell pellet in 500 microliters of E8 medium. Count the cells using a hemacytometer and seed 2.5 to five times 10 to the fourth cells in another previously prepared LN-521 precoated well containing 500 microliters of room temperature E8 medium. Add ROCK inhibitor to a final concentration of 10 micromolar.Incubate the cells at 37 degrees Celsius. Using this protocol, human induced pluripotent stem cell colonies emerge from transduced fibroblasts at about day 12 post-transduction. Colonies were ready to be picked at about three to four weeks post-transduction.Preferred features include flattened compact cell masses, growth as homogenous monolayers, and sharp edges. These bright field images show an early passage homogenous fully reprogrammed human iPS cell line compared to a highly heterogeneous cell line. The loss of the Sendai virus vector was confirmed by the absence of Sendai virus vector-specific markers in human iPS cells at passage 12 in contrast to human iPS cells at passage three.Immunocytochemistry staining of derived cells for pluripotency markers OCT4, SSEA-4, and NANOG yielded a homogeneously positive result. mRNA expression of endogenous pluripotency genes was shown by reverse transcriptase PCR. Cell cultures containing partially reprogrammed cells that did not express pluripotency factors were discarded.The differentiation potential of human iPS cells was assessed by formation of embryoid bodies. Real-time PCR after 21 days of embryoid body differentiation detected mRNA expression of endoderm, mesoderm, and ectoderm-specific markers which confirmed the derived human iPS cells were capable of differentiation to the three germ layers. Once mastered, this technique can be done with about 22 hours of hands-on time during a time period of approximately 16 weeks.The derived human induced pluripotent stem cells can be differentiated into any cell type of the adult human body to answer any questions relevant to your research field. After watching this video, we hope that you will have a good understanding of how to perform the steps necessary to derive induced pluripotent stem cells from skin biopsies.

Research

JoVE Journal

Developmental Biology

Derivation of Highly Purified Cardiomyocytes from Human Induced Pluripotent Stem Cells Using Small Molecule-modulated Differentiation and Subsequent Glucose Starvation

Derivación de cardiomiocitos altamente purificada de células madre humanas pluripotentes inducidas Uso Pequeño Diferenciación molécula modulada y posterior glucosa inanición

Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) have become an important cell source to address the lack of primary cardiomyocytes ...

Investigación

Biología del Desarrollo

Generation of Integration-free Human Induced Pluripotent Stem Cells Using Hair-derived Keratinocytes

Generación de células madre Integración de libre Humanos pluripotentes inducidas Usando derivada de pelo queratinocitos

Recent advances in reprogramming allow us to turn somatic cells into human induced pluripotent stem cells (hiPSCs). Disease modeling using ...

Three-dimensional Quantification of Dendritic Spines from Pyramidal Neurons Derived from Human Induced Pluripotent Stem Cells

La cuantificación tridimensional de espinas dendríticas de piramidal neuronas derivadas de células madre humanas pluripotentes inducidas

Dendritic spines are small protrusions that correspond to the post-synaptic compartments of excitatory synapses in the central nervous system. They are ...

Generation of Induced Pluripotent Stem Cells from Human Peripheral T Cells Using Sendai Virus in Feeder-free Conditions

Generación de pluripotentes inducidas células madre a partir de células T periféricas Humanos Uso de Sendai virus en Condiciones-Feeder gratuita

Recently, iPSCs have attracted attention as a new source of cells for regenerative therapies. Although the initial method for generating iPSCs relied on ...

Feeder-free Derivation of Melanocytes from Human Pluripotent Stem Cells

Derivación sin alimentador de melanocitos partir de células madre pluripotentes

Human pluripotent stem cells (hPSCs) represent a platform to study human development in vitro under both normal and disease conditions. Researchers can ...

Generation of Integration-free Induced Pluripotent Stem Cells from Human Peripheral Blood Mononuclear Cells Using Episomal Vectors

Generación de Integración libres de células madre pluripotentes inducidas a partir de células mononucleares de sangre periférica humana Utilizando vectores episomales

Induced Pluripotent Stem Cells (iPSCs) hold great promise for disease modeling and regenerative therapies. We previously reported the use of Episomal ...

Differentiating Chondrocytes from Peripheral Blood-derived Human Induced Pluripotent Stem Cells

Diferenciación de los condrocitos de las células madre pluripotentes humanas inducidas por la sangre periféricas derivadas de la sangre

In this study, we used peripheral blood cells (PBCs) as seed cells to produce chondrocytes via induced pluripotent stem cells (iPSCs) in an ...

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

Diferenciación rápida y dirigida de las células epiteliales del pigmento retiniano de humanos embrionarios o inducidas pluripotenciales células

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

Using Human Induced Pluripotent Stem Cell-derived Hepatocyte-like Cells for Drug Discovery

Usando humanos inducida por células de hepatocito-como derivado de células madre pluripotentes de descubrimiento de fármacos

The ability to differentiate human induced pluripotent stem cells (iPSCs) into hepatocyte-like cells (HLCs) provides new opportunities to study inborn ...

A Familial Hypercholesterolemia Human Liver Chimeric Mouse Model Using Induced Pluripotent Stem Cell-derived Hepatocytes

Un modelo de ratón quimérico hígado humano de hipercolesterolemia familiar con hepatocitos derivados de células madre pluripotentes inducidas

Familial hypercholesterolemia (FH) is mostly caused by low-density lipoprotein receptor (LDLR) mutations and results in an increased risk of early-onset ...