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

Ce travail a été soutenu par des agents de financement SSF (B13-0074) et VINNOVA (2016-04134).

La collecte du matériel du patient et la dérivation des cellules HiPS sont approuvées par le Ethics Review Board, Stockholm, le 28 mars 2012, numéro d&#39;enregistrement: 2012 / 208-31 / 3. Les étapes de culture cellulaire doivent être effectuées dans des armoires de sécurité biologique, sauf mention contraire. Toujours pratiquer des techniques de manipulation stérile lorsque vous travaillez avec des cellules. Permet aux médias, les plaques et les réactifs d&#39;atteindre la température ambiante avant de co...

<ol>
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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=Feeder-independent+culture+of+human+embryonic+stem+cells.">Feeder-independent culture of human embryonic stem cells.</a> Nat Methods. 3 (8), 637-646 (2006).</li><li>Rodin, 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+self-renewal+of+human+pluripotent+stem+cells+on+human+recombinant+laminin-511.">Long-term self-renewal of human pluripotent stem cells on human recombinant laminin-511.</a> Nat Biotech. 28 (6), 611-615 (2010).</li><li>Chen, 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=Chemically+defined+conditions+for+human+iPSC+derivation+and+culture.">Chemically defined conditions for human iPSC derivation and culture.</a> Nat Meth. 8 (5), 424-429 (2011).</li><li>Rodin, S., Antonsson, L., Hovatta, O., Tryggvason, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Monolayer+culturing+and+cloning+of+human+pluripotent+stem+cells+on+laminin-521-based+matrices+under+xeno-free+and+chemically+defined+conditions.">Monolayer culturing and cloning of human pluripotent stem cells on laminin-521-based matrices under xeno-free and chemically defined conditions.</a> Nat Protoc. 9 (10), 2354-2368 (2014).</li><li>Rodin, 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=Clonal+culturing+of+human+embryonic+stem+cells+on+laminin-521/E-cadherin+matrix+in+defined+and+xeno-free+environment.">Clonal culturing of human embryonic stem cells on laminin-521/E-cadherin matrix in defined and xeno-free environment.</a> Nat Commun. 5, 3195 (2014).</li><li>Fusaki, N., Ban, H., Nishiyama, A., Saeki, K., Hasegawa, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Efficient+induction+of+transgene-free+human+pluripotent+stem+cells+using+a+vector+based+on+Sendai+virus,+an+RNA+virus+that+does+not+integrate+into+the+host+genome.">Efficient induction of transgene-free human pluripotent stem cells using a vector based on Sendai virus, an RNA virus that does not integrate into the host genome.</a> Proc Jpn Acad Ser B Phys Biol Sci. 85 (8), 348-362 (2009).</li><li>Warren, L., 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+Reprogramming+to+Pluripotency+and+Directed+Differentiation+of+Human+Cells+with+Synthetic+Modified+mRNA.">Highly Efficient Reprogramming to Pluripotency and Directed Differentiation of Human Cells with Synthetic Modified mRNA.</a> Cell Stem Cell. 7 (5), 618-630 (2010).</li><li>Unger, C., Skottman, H., Blomberg, P., Dilber, M. S., Hovatta, O. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Good+manufacturing+practice+and+clinical-grade+human+embryonic+stem+cell+lines.">Good manufacturing practice and clinical-grade human embryonic stem cell lines.</a> Hum Mol Genet. 17 (R1), R48-R53 (2008).</li><li>Martin, M. 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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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=A+comparison+of+non-integrating+reprogramming+methods.">A comparison of non-integrating reprogramming methods.</a> Nat Biotech. 33 (1), 58-63 (2015).</li><li>. Ideal Xeno-Free Culture Conditions For Human Fibroblasts That Facilitate Efficient Reprogramming Available from: <a target="_blank" href="https://tools.thermofisher.com/content/sfs/posters/xeno-free-culture-conditions-fibroblasts-poster.pdf">https://tools.thermofisher.com/content/sfs/posters/xeno-free-culture-conditions-fibroblasts-poster.pdf</a> (2016)</li><li>Trokovic, R., Weltner, J., Noisa, P., Raivio, T., Otonkoski, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Combined+negative+effect+of+donor+age+and+time+in+culture+on+the+reprogramming+efficiency+into+induced+pluripotent+stem+cells.">Combined negative effect of donor age and time in culture on the reprogramming efficiency into induced pluripotent stem cells.</a> Stem Cell Res. 15 (1), 254-262 (2015).</li></ol>

Le résultat attendu de ce protocole est la génération réussie de plusieurs lignées cellulaires hiPS dérivées de manière clonale. Il est important de noter que la méthode pour la maintenance et l&#39;expansion des cellules hiPS établies ici décrit est fiable et peut être effectuée avec peu d&#39;expérience préalable de la culture de cellules souches. Le transfert enzymatique d&#39;une seule cellule avec ROCKi avec la matrice LN-521 est connu pour maintenir les cellules comme caryotypiquement normales, plur...

Depuis la première dérivation des lignées cellulaires hiPS par Takahashi et al. 1 , 2 , les cellules HiPS ont fourni un outil utile pour la modélisation de la maladie, la découverte de médicaments et comme matériau de base pour la génération de thérapies cellulaires dans la médecine régénératrice 3 . La culture cellulaire hiPS a longtemps dépendu de la co-culture avec des cellules nourrissantes de fibroblastes 4 , 5 ou sur Matrigel 6 et avec des formulations de média contenant du sérum bovin fœtal (FBS). Les variances de lot à lot sont une conséquence courante de la nature indéfinie de ces conditions de culture, ce qui entraîne des variations imprévisibles, ce qui contribue grandement à la non fiabilité de ces protocoles 7 . Le développement de moyens définis tels que Essential 8 (E8) 8 et des matrices de culture cellulaire définies, par exemple LN-521 9 , permettentS pour l&#39;établissement de protocoles hautement reproductibles et aide à la génération et à la maintenance robustes des cellules HiPS homogènes 7 , 8 , 9 , 10 . Le développement de techniques de reprogrammation sans intégration a été un bond en avant. À l&#39;origine, la reprogrammation dépendait de vecteurs rétroviraux qui s&#39;établissaient de manière aléatoire dans le génome avec des effets perturbateurs sur l&#39;intégrité génomique 11 . Les progrès dans les méthodologies de reprogrammation comprennent le développement de vecteurs à base d&#39;ARN. Les vecteurs d&#39;ARN ont un avantage par rapport à la méthode de reprogrammation basée sur l&#39;ADN car une intégration involontaire par recombinaison génomique n&#39;est pas possible 12 . Les vecteurs SeV fournissent une expression élevée et transitoire de facteurs exogènes par l&#39;ARN monocaténaire sans phase d&#39;ADN 11 . Les vecteurs de reprogrammation livrés par le SeVSont dilués tout au long de l&#39;expansion de la cellule et finissent par se débarrasser de la culture en fournissant un mode de reprogrammation sans impression imprimée. Par la suite, le maintien de la pluripotence dépend de l&#39;expression endogène des gènes de pluripotence 2 . Au fur et à mesure que les thérapies basées sur les cellules hiPS avancées commencent à se lancer dans des essais cliniques, les demandes de lots, de reproductibilité et de sécurité standardisés sont des problèmes essentiels à résoudre 13 . Par conséquent, les produits d&#39;origine animale devraient être évités. Par exemple, l&#39;utilisation de produits xénogénétiques a été associée au risque de contamination par des agents pathogènes non humains. En outre, les cellules cultivées en présence de composants de culture dérivés d&#39;animaux ont montré qu&#39;ils incorporent des acides siliques non humains dans des membranes cellulaires qui menacent de rendre les cellules dérivées immunogènes 14 . Par conséquent, la nécessité d&#39;éliminer les produits xénogénétiques est nécessaire à toute poursuite clinique future. Ce protocole s&#39;applique xeUne culture non libre et définie dans la maintenance des cellules HiPS se déplace des cellules plus près de la conformité clinique. Ce protocole décrit une méthode cohérente, hautement reproductible et facile à utiliser qui génère des cellules HiPS normalisées à partir de fibroblastes. Il offre également un système de culture convivial pour la maintenance de cellules hiPS établies. Ce protocole a été utilisé pour dériver plus de 300 lignées cellulaires hiPS dans l&#39;installation suédoise nationale iPS Core chez Karolinska Institutet dont certaines lignes ont déjà été décrites 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

Les conditions exemptes de Xeno et totalement définies sont des paramètres clés pour la génération robuste et reproductible de cellules souches pluripotentes induites par l&#39;homme (hiPS) homogènes. La maintenance des cellules HiPS sur les cellules nourricières ou les matrices non définies sont sensibles aux variances discontinues, à la contamination pathogène et au risque d&#39;immunogénicité. L&#39;utilisation de la matrice recombinante de la laminine humaine 521 (LN-521) définie en combinaison avec des formulations de média xénoïdes et définies réduit la variabilité et permet la génération cohérente de cellules HiPS. Le vecteur de virus Sendai (SeV) est un système à base d&#39;ARN non intégrant, contournant ainsi les préoccupations liées à l&#39;effet perturbateur potentiel sur les vecteurs intégrant l&#39;intégrité du génome. En outre, ces vecteurs ont démontré une efficacité relativement élevée dans la reprogrammation des fibroblastes dermiques. En outre, le passage enzymatique à une seule cellule des cellules facilite l&#39;entretien homogène des cellules HiPS sans une expérience préalable substantielle de la tigeLl culture. Ici, nous décrivons un protocole qui a été largement testé et développé en mettant l&#39;accent sur la reproductibilité et la facilité d&#39;utilisation, fournissant un moyen robuste et pratique de générer des cellules hiPS humaines définies et exemptes de xénon à partir de fibroblastes.

De la biopsie aux cellules HiPS L&#39;ensemble du processus, de la biopsie aux cellules hiPS établies, sans vecteur de reprogrammation et prêt à être caractérisé, prend environ 16 semaines ( Figure 1 ). Un calendrier plus détaillé est spécifié dans la figure 2A . Il faut environ 4 semaines pour établir et développer des cultures de fibroblastes. Les première...

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

La dérivation robuste des cellules de la tige pluripotente induite par l&#39;homme (hiPS) a été réalisée en utilisant une reprogrammation médiée par vecteur de virus Sendai non-intégrant (SeV) des fibroblastes dermiques. La maintenance cellulaire de hiPS et l&#39;expansion clonale ont été réalisées en utilisant des conditions de culture sans xénon et chimiquement définies avec une matrice recombinante de la laminine humaine 521 (LN-521) et un milieu E8 (E8) essentiel.

Intégration de la dérivation libre de cellules souches pluripotentes induites par l&#39;homme à l&#39;aide de 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

Dérivation des cardiomyocytes hautement purifiée de anthropiques cellules souches pluripotentes en utilisant de petits différenciation de Molecule-modulé et ultérieur glucose famine

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

Recherche

Biologie du développement

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

Génération de l&#39;intégration sans anthropiques cellules souches pluripotentes utilisant des kératinocytes cheveux dérivés

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

Quantification tridimensionnelle d&#39;épines dendritiques de Pyramidal neurones humains induits Dérivé de cellules souches pluripotentes

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

Génération de cellules souches pluripotentes induites à partir de cellules T périphériques humains à l&#39;aide de virus Sendai dans des conditions libres Feeder-

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

Dérivation libre Feeder-de mélanocytes de pluripotentes humaines Cellules souches

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

Génération d&#39;Intégration-libres induits des cellules souches pluripotentes à partir de cellules mononucléaires sang périphérique humain utilisant épisomique Vecteurs

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

Différenciation des chondrocytes provenant des cellules souches pluripotentes induites par le sang périphérique dérivé du sang

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

Rapide, réalisée la différenciation des cellules épithéliales pigmentaire rétinien de cellules souches pluripotentes humaines embryonnaires ou induit

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

À l’aide de l’homme induit des hépatocytes-comme dérivé de cellules souches pluripotentes for Drug Discovery

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 modèle de souris chimériques du foie humain de l’hypercholestérolémie utilisant des hépatocytes de dérivés de cellules souches pluripotentes induites

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