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

这项工作得到SSF（B13-0074）和VINNOVA（2016-04134）资助者的支持。

患者资料的收集和hiPS细胞的推导得到道德评估委员会，2012年3月28日，斯德哥尔摩，注册号：2012 / 208-31 / 3的批准。细胞培养步骤应在生物安全柜内进行，除非另有说明。在使用细胞时，始终使用无菌处理技术。允许介质，板和试剂在启动前达到室温。在37℃，5％CO 2高湿度条件下孵育细胞。 1.从真皮活检中分离人成纤维细胞<ol><li> 培养基的制备，消化酶，菜肴...

<ol>
	<li>Takahashi, 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=Induction+of+pluripotent+stem+cells+from+adult+human+fibroblasts+by+defined+factors.">Induction of pluripotent stem cells from adult human fibroblasts by defined factors.</a> Cell. 131 (5), 861-872 (2007).</li><li>Jin, Z. B., Okamoto, S., Xiang, P., Takahashi, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Integration-free+induced+pluripotent+stem+cells+derived+from+retinitis+pigmentosa+patient+for+disease+modeling.">Integration-free induced pluripotent stem cells derived from retinitis pigmentosa patient for disease modeling.</a> Stem Cells Transl Med. 1 (6), 503-509 (2012).</li><li>Zhou, H., Ding, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Evolution+of+induced+pluripotent+stem+cell+technology.">Evolution of induced pluripotent stem cell technology.</a> Curr Opin Hematol. 17 (4), 276-280 (2010).</li><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>Hovatta, O., 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+culture+system+using+human+foreskin+fibroblasts+as+feeder+cells+allows+production+of+human+embryonic+stem+cells.">A culture system using human foreskin fibroblasts as feeder cells allows production of human embryonic stem cells.</a> Hum Reprod. 18 (7), 1404-1409 (2003).</li><li>Ludwig, T. 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. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Human+pluripotent+stem+cell+culture:+considerations+for+maintenance,+expansion,+and+therapeutics.">Human pluripotent stem cell culture: considerations for maintenance, expansion, and therapeutics.</a> Cell Stem Cell. 14 (1), 13-26 (2014).</li><li>Jacobs, 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=Higher-Density+Culture+in+Human+Embryonic+Stem+Cells+Results+in+DNA+Damage+and+Genome+Instability.">Higher-Density Culture in Human Embryonic Stem Cells Results in DNA Damage and Genome Instability.</a> Stem Cell Reports. 6 (3), 330-341 (2016).</li><li>Schlaeger, T. 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>

该协议的预期结果是成功生成几个克隆导出的hiPS细胞系。重要的是，这里描述的用于维持和扩增所建立的hiPS细胞的方法是可靠的，并且可以以少量干细胞培养的经验进行。已知使用ROCKi与LN-521基因进行单酶细胞传代，将细胞维持在核型正常，多能性和易于分化，同时避免诱导的异质性，基于集落的传代可刺激10,19,20。在LN-521上培养的hiPS细胞可以作为单细胞传代，而不添加ROCKi 10 ...

由于Takahashi 等人首先推导出hiPS细胞系1,2 ，hiPS细胞为疾病建模，药物发现和用于在再生医学中产生细胞疗法的源材料提供了有用的工具3 。长期以来，HiPS细胞培养依赖于与成纤维细胞饲养细胞4,5或基质胶6和含有胎牛血清（FBS）的培养基配制物的共培养。批次差异是这些文化条件未定义性质的常见后果，导致不可预测的变化，这是这些协议不可靠性的主要原因7 。定义的培养基如基本8（E8） 8和定义的细胞培养基质例如LN-521 9的开发允许s用于建立高度可重复的方案，并有助于稳健的产生和维持均质的hiPS细胞7,8,9,10。 一体化免费重编程技术的发展已经跨越式发展。最初，重编程依赖于随机整合到基因组中的逆转录病毒载体，对基因组完整性具有破坏性影响11 。重编程方法的进展包括开发基于RNA的载体。 RNA载体相对于基于DNA的重编程方法具有优势，因为通过基因组重组的非预期整合是不可能的12 。 SeV载体通过没有DNA相11的单链RNA提供高和短暂的外源因子表达。由SeV交付的重编程载体在整个细胞扩增过程中被稀释，最终从培养物中脱落，提供了免打印方式的重编程。此后，多能性的维持依赖于多能性基因的内源性表达2 。 作为开创性的基于hiPS细胞的疗法正在开始进入临床试验，标准化批次，再现性和安全性的要求是解决13的重要问题。因此，应避免动物产地。例如，异种产品的使用与非人类病原体污染的风险相关。此外，在动物衍生的培养物组分存在下培养的细胞已经显示出将非人类硅酸掺入可能导致衍生细胞免疫原性的细胞膜中14 。因此，消除异种产品的需要对于任何未来的临床追求都是必要的。此协议适用于xe免疫和定义的培养在保持hiPS细胞移动细胞更接近临床依从性。 该协议描述了从成纤维细胞产生标准化的hiPS细胞的一致，高度可重现和易于使用的方法。它还提供了一种用户友好的文化系统，用于维护已建立的hiPS细胞。该协议已被用于在Karolinska机构的瑞典国家人类iPS核心设施中获得超过300个hiPS细胞系，其中一些线路之前已被描述为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

无性和完全定义的条件是稳定和可重复产生均质人诱导多能干细胞（hiPS）细胞的关键参数。饲养细胞或未定义基质上的hiPS细胞的维持易受批次差异，致病性污染和免疫原性风险的影响。使用定义的重组人层粘连蛋白521（LN-521）基质与无异种素和限定的培养基制剂组合减少变异性并允许hiPS细胞的一致产生。仙台病毒（SeV）载体是一种非整合的基于RNA的系统，因此规避了与基因组完整性整合载体可能具有的潜在破坏性影响相关的问题。此外，这些载体在真皮成纤维细胞的重新编程中已经表现出相对较高的效率。此外，细胞的酶促单细胞传代促进了hiPS细胞的均匀维持，而没有实质的茎干经验文化。在这里，我们描述了一个经过广泛测试和开发的方案，重点是重现性和易用性，为从成纤维细胞中产生定义和不含异种的人类hiPS细胞提供了一种可靠和实用的方法。

从活检到hiPS细胞从活检到建立的hiPS细胞，清除重编程载体并准备表征的整个过程大约需要16周（ 图1 ）。 图2A中指定了更详细的时间表。需要大约4周来建立和扩大成纤维细胞培养。第一个hiPS细胞集落开始在仙台载体转导后约三周出现。首先通过机械采集菌落，然后以单细胞酶促传代...

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

通过使用非整合仙台病毒（SeV）载体介导的真皮成纤维细胞的重编程，实现人诱导的多能干细胞（hiPS）细胞的稳健衍生。使用重组人层粘连蛋白521（LN-521）基质和Essential E8（E8）培养基，使用无异种素和化学定义的培养条件进行hiPS细胞维持和克隆扩增。

使用层粘连蛋白521矩阵整合人诱导多能干细胞的自由衍生

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

从人类诱导多能干细胞使用小分子调制分化和随后的葡萄糖饥饿高度纯化心肌推导

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

科研

发育生物学

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

集成的无人类诱导多能干细胞的生成方法头发衍生角质形成细胞

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

树突棘从锥体神经元的三维定量从人类诱导多能干细胞衍生

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

从人外周T细胞无饲养条件下，使用仙台病毒诱导多能干细胞的生成

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

从人多能干细胞的黑素细胞的无饲养推导

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

从人体外周血单个核细胞融合，无诱导多能干细胞的生成方法游离型载体

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

分化软骨细胞与外周血源性人诱导多能干细胞

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

人胚胎或诱导多能干细胞对视网膜色素上皮细胞的快速定向分化

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

人诱导多潜能干细胞衍生肝细胞的药物发现方法

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

诱导多潜能干细胞源性肝细胞的家族性高胆固醇血症人肝嵌合小鼠模型

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