Name: reprogramming primary amniotic fluid and membrane cells to pluripotency in xeno-free conditions
Uploaded: 2017-11-27T13:00:00
Description: Watch this Scientific Journal Video about Reprogramming Primary Amniotic Fluid and Membrane Cells to Pluripotency in Xeno-free Conditions at JoVE.com

Questo lavoro è stato supportato dal Fonds Medizinische Forschung presso l'Università di Zurigo, Forschungskredit dell'Università di Zurigo, The SCIEX NMSCh sotto 10.216 Fellowships e 12.176, The Swiss Society of Cardiology, The Swiss National Science Fondazione sotto Grant [320030-122273] e [310030-143992], il 7 ° programma quadro, la valvola di vita, la Commissione europea sotto Grant [242008], l'Olga Mayenfisch Foundation, la Fondazione EMDO, la concessione di Start-up 2012 dell'ospedale universitario di Zurigo, e finanziamento interno del Mitchell Cancer Institute.

Il protocollo segue le linee guida istituzionali del comitato etico per la ricerca umana. Consenso scritto del paziente è stata ottenuta per l'utilizzo del liquido amniotico per la ricerca.
Questo protocollo segue i criteri del Comitato uso della University of South Alabama e istituzionali Animal Care.
1. isolamento e coltura di cellule staminali amniotiche primario Mesenchymal
<ol><li>
Placcatura di cellule del liquido amniotico
	<ol>
<li>Ottene...

<ol>
	<li>Takahashi, K., Yamanaka, S. <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+mouse+embryonic+and+adult+fibroblast+cultures+by+defined+factors.">Induction of pluripotent stem cells from mouse embryonic and adult fibroblast cultures by defined factors.</a> Cell. 126 (4), 663-676 (2006).</li><li>Yu, 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=Induced+Pluripotent+Stem+Cell+Lines+Derived+from+Human+Somatic+Cells.">Induced Pluripotent Stem Cell Lines Derived from Human Somatic Cells.</a> Science. 318 (5858), 1917-1920 (2007).</li><li>Trounson, A., DeWitt, N. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pluripotent+stem+cells+progressing+to+the+clinic.">Pluripotent stem cells progressing to the clinic.</a> Nat. Rev. Mol. Cell Biol. 17 (3), 194-200 (2016).</li><li>Schmidt, D., 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=Prenatally+fabricated+autologous+human+living+heart+valves+based+on+amniotic+fluid+derived+progenitor+cells+as+single+cell+source.">Prenatally fabricated autologous human living heart valves based on amniotic fluid derived progenitor cells as single cell source.</a> Circulation. 116 (11 Suppl), I64-I70 (2007).</li><li>Weber, B., Zeisberger, S. M., Hoerstrup, S. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Prenatally+harvested+cells+for+cardiovascular+tissue+engineering:+Fabrication+of+autologous+implants+prior+to+birth.">Prenatally harvested cells for cardiovascular tissue engineering: Fabrication of autologous implants prior to birth.</a> Placenta. 32, S316-S319 (2011).</li><li>Weber, B., 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=Prenatally+engineered+autologous+amniotic+fluid+stem+cell-based+heart+valves+in+the+fetal+circulation.">Prenatally engineered autologous amniotic fluid stem cell-based heart valves in the fetal circulation.</a> Biomaterials. 33 (16), 4031-4043 (2012).</li><li>Kehl, D., Weber, B., Hoerstrup, S. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Bioengineered+living+cardiac+and+venous+valve+replacements:+current+status+and+future+prospects.">Bioengineered living cardiac and venous valve replacements: current status and future prospects.</a> Cardiovasc. Pathol. 25 (4), 300-305 (2016).</li><li>Slamecka, 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=Non-integrating+episomal+plasmid-based+reprogramming+of+human+amniotic+fluid+stem+cells+into+induced+pluripotent+stem+cells+in+chemically+defined+conditions.">Non-integrating episomal plasmid-based reprogramming of human amniotic fluid stem cells into induced pluripotent stem cells in chemically defined conditions.</a> Cell Cycle. 15 (2), 234-249 (2016).</li><li>Jiang, 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=Human+Transgene-Free+Amniotic-Fluid-Derived+Induced+Pluripotent+Stem+Cells+for+Autologous+Cell+Therapy.">Human Transgene-Free Amniotic-Fluid-Derived Induced Pluripotent Stem Cells for Autologous Cell Therapy.</a> Stem Cells Dev. 23 (21), 2613-2625 (2014).</li><li>Pipino, C., 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=Trisomy+21+mid-trimester+amniotic+fluid+induced+pluripotent+stem+cells+maintain+genetic+signatures+during+reprogramming:+implications+for+disease+modeling+and+cryobanking.">Trisomy 21 mid-trimester amniotic fluid induced pluripotent stem cells maintain genetic signatures during reprogramming: implications for disease modeling and cryobanking.</a> Cell. Reprogram. 16 (5), 331-344 (2014).</li><li>Cai, 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=Generation+of+human+induced+pluripotent+stem+cells+from+umbilical+cord+matrix+and+amniotic+membrane+mesenchymal+cells.">Generation of human induced pluripotent stem cells from umbilical cord matrix and amniotic membrane mesenchymal cells.</a> J Biol. Chem. 285 (15), 11227-11234 (2010).</li><li>Ge, X., 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+Amniotic+Mesenchymal+Stem+Cell-Derived+Induced+Pluripotent+Stem+Cells+May+Generate+a+Universal+Source+of+Cardiac+Cells.">Human Amniotic Mesenchymal Stem Cell-Derived Induced Pluripotent Stem Cells May Generate a Universal Source of Cardiac Cells.</a> Stem Cells Dev. 21 (15), 2798-2808 (2012).</li><li>Drozd, A. M., Walczak, M. P., Piaskowski, S., Stoczynska-Fidelus, E., Rieske, P., Grzela, D. P. <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+iPSCs+from+cells+of+fibroblastic+and+epithelial+origin+by+means+of+the+oriP/EBNA-1+episomal+reprogramming+system.">Generation of human iPSCs from cells of fibroblastic and epithelial origin by means of the oriP/EBNA-1 episomal reprogramming system.</a> Stem Cell Res. Ther. 6 (1), (2015).</li><li>Kang, N. -. 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=Potential+antitumor+therapeutic+strategies+of+human+amniotic+membrane+and+amniotic+fluid-derived+stem+cells.">Potential antitumor therapeutic strategies of human amniotic membrane and amniotic fluid-derived stem cells.</a> Cancer Gene Ther. 19 (8), 517-522 (2012).</li><li>Moschidou, D., 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=Valproic+Acid+Confers+Functional+Pluripotency+to+Human+Amniotic+Fluid+Stem+Cells+in+a+Transgene-free+Approach.">Valproic Acid Confers Functional Pluripotency to Human Amniotic Fluid Stem Cells in a Transgene-free Approach.</a> Mol. Ther. 20 (10), 1953-1967 (2012).</li><li>Kim, 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=Epigenetic+memory+in+induced+pluripotent+stem+cells.">Epigenetic memory in induced pluripotent stem cells.</a> Nature. 467 (7313), 285-290 (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> Nature Methods. 8 (5), 424-429 (2011).</li><li>Yu, 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+Induced+Pluripotent+Stem+Cells+Free+of+Vector+and+Transgene+Sequences.">Human Induced Pluripotent Stem Cells Free of Vector and Transgene Sequences.</a> Science. 324 (5928), 797-801 (2009).</li><li>Mart&#237;, 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=Characterization+of+pluripotent+stem+cells.">Characterization of pluripotent stem cells.</a> Nat. Protoc. 8 (2), 223-253 (2013).</li><li>Chan, E. 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=Live+cell+imaging+distinguishes+bona+fide+human+iPS+cells+from+partially+reprogrammed+cells.">Live cell imaging distinguishes bona fide human iPS cells from partially reprogrammed cells.</a> Nat. Biotechnol. 27 (11), 1033-1037 (2009).</li><li>Adewumi, 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=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> Nat. Biotechnol. 25 (7), 803-816 (2007).</li><li>M&#252;ller, F. -. 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=A+bioinformatic+assay+for+pluripotency+in+human+cells.">A bioinformatic assay for pluripotency in human cells.</a> Nature Methods. 8 (4), 315-317 (2011).</li><li>Cahan, P., Li, H., Morris, S. A., Lummertz da Rocha, E., Daley, G. Q., Collins, J. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=CellNet:+Network+Biology+Applied+to+Stem+Cell+Engineering.">CellNet: Network Biology Applied to Stem Cell Engineering.</a> Cell. 158 (4), 903-915 (2014).</li><li>Schopperle, W. M., DeWolf, W. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+TRA-1-60+and+TRA-1-81+Human+Pluripotent+Stem+Cell+Markers+Are+Expressed+on+Podocalyxin+in+Embryonal+Carcinoma.">The TRA-1-60 and TRA-1-81 Human Pluripotent Stem Cell Markers Are Expressed on Podocalyxin in Embryonal Carcinoma.</a> STEM CELLS. 25 (3), 723-730 (2007).</li><li>Ohnishi, 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=Premature+Termination+of+Reprogramming+In+Vivo+Leads+to+Cancer+Development+through+Altered+Epigenetic+Regulation.">Premature Termination of Reprogramming In Vivo Leads to Cancer Development through Altered Epigenetic Regulation.</a> Cell. 156 (4), 663-677 (2014).</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> Nature Biotechnology. 33 (1), 58-63 (2014).</li><li>M&#252;ller, F. -. J., Goldmann, J., L&#246;ser, P., Loring, J. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+call+to+standardize+teratoma+assays+used+to+define+human+pluripotent+cell+lines.">A call to standardize teratoma assays used to define human pluripotent cell lines.</a> Cell Stem Cell. 6 (5), 412-414 (2010).</li><li>Beers, 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=Passaging+and+colony+expansion+of+human+pluripotent+stem+cells+by+enzyme-free+dissociation+in+chemically+defined+culture+conditions.">Passaging and colony expansion of human pluripotent stem cells by enzyme-free dissociation in chemically defined culture conditions.</a> Nat. Protoc. 7 (11), 2029-2040 (2012).</li></ol>

La fase iniziale della generazione di iPSC da cellule staminali embrionali comporta l'estrazione di celle di origine da tessuti fetali, loro cultura, espansione e introduzione dei plasmidi riprogrammazione episomal. Questa fase è seguita da un periodo di cultura di circa 14-18 giorni prima che le prime colonie completamente riprogrammate possono essere espansa. La fase finale è la maturazione dei cloni iPSC. L'iniziale estrazione delle cellule staminali della membrana amniotica è realizzata per mezzo di una combinato ...

La tecnologia delle cellule staminali pluripotenti indotte (iPSC) comporta potenziali terapie di sostituzione cellulare, malattia e modellazione inerente allo sviluppo e droga e selezione tossicologica1,2,3. Terapie sostitutive concettualmente può essere ottenute tramite l'iniezione delle cellule, in vitro differenziato l'impianto del tessuto (ad esempio di patch cardiaci), o rigenerazione guidata mediante ingegneria tissutale. Liquido amniotico (AFSC) e cellule staminali di membrana (AMSC) sono un'ottima fonte di cellule per questi interventi sia direttamente4,5,6,7 o come una popolazione cellulare iniziale per la riprogrammazione in pluripotenza8,9,10,11,12.
Primi approcci utilizzati sistemi di coltura non definito o riprogrammazione metodi che richiedono l'integrazione genomica comporta dei costrutti9,10,11,12. Uno studio più recente ha impiegato un mezzo privo di xeno, anche se è stata utilizzata una meno definita matrice di attaccamento della membrana basale (BMM), per generare iPSC da cellule epiteliali del liquido amniotico. Tuttavia, l'analisi di formazione di teratoma non era inclusa nello studio insieme a una ricchezza di dati molecolari e in vitro. Cellule epiteliali del liquido amniotic sono state trovate per avere una più o meno 8 volte maggiore efficienza riprogramma rispetto ai fibroblasti neonatali13. In un altro studio, cellule mesenchimali staminali da liquido amniotico inoltre sono state trovate per essere riprogrammato in iPSC con molta efficienza superiore12.
Cellule staminali pluripotenti possono essere differenziate in rappresentante di tessuti di tutti e 3 strati germinali e quindi hanno il potenziale più ampio. Pazienti pediatrici potrebbero beneficiare la raccolta, riprogrammazione e ingegneria tissutale delle loro cellule staminali di liquido amniotic autologhi prenatally amniotic della membrana cellule staminali e perinatale. Inoltre, il livello relativamente basso di differenziazione delle cellule staminali embrionali (inferiore a cellule staminali adulte14,15) teoricamente potrebbe aiutare nell'affrontare la ritenzione osservata di bias epigenetici dalle celle di origine in iPSC16.
Qui presentiamo un protocollo per la riprogrammazione del liquido amniotico e cellule staminali membrana di pluripotenza in chimicamente definito medium E8 senza xeno su ricombinante vitronectina17 (VTN) utilizzando plasmidi episomal18. Il vantaggio principale delle cellule della membrana e del liquido amniotico come fonte di cellule per la riprogrammazione risiede nella loro disponibilità pre- e perinatale e quindi questo approccio principalmente avrebbe vantaggio della ricerca pediatrica tissutale.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	
	<tbody>
		<tr >
			<td >Tumor Dissociation Kit, human</td>
			<td >Miltenyi Biotec</td>
			<td >130-095-929</td>
			<td >tissue dissociation system, reagent kit, includes tissue dissociation tubes and tissue dissociation enzymes</td>
		</tr>
		<tr >
			<td >gentleMACS Dissociator</td>
			<td >Miltenyi Biotec</td>
			<td >130-093-235</td>
			<td >tissue dissociation system, dissociator</td>
		</tr>
		<tr >
			<td >Thermo Scientific&#8482; Shandon&#8482; Disposable Scalpel No. 10, Sterile, Individually Wrapped, 5.75 (14.6cm)</td>
			<td >Thermo-Fisher</td>
			<td >3120032</td>
			<td ></td>
		</tr>
		<tr >
			<td >70 &#181;m cell strainers</td>
			<td >Corning</td>
			<td >10054-456</td>
			<td ></td>
		</tr>
		<tr >
			<td >RPMI 1640 medium</td>
			<td >Thermo-Fisher</td>
			<td >32404014&#160;</td>
			<td ></td>
		</tr>
		<tr >
			<td >rocking platform</td>
			<td >VWR</td>
			<td >40000-300</td>
			<td ></td>
		</tr>
		<tr >
			<td >50 ml centrifuge tubes</td>
			<td >Thermo-Fisher</td>
			<td >339652</td>
			<td ></td>
		</tr>
		<tr >
			<td >15 ml centrifuge tubes</td>
			<td >Thermo-Fisher</td>
			<td >339650</td>
			<td ></td>
		</tr>
		<tr >
			<td >EBM-2 basal medium</td>
			<td >Lonza</td>
			<td >CC-3156</td>
			<td >basal medium for AFMC medium</td>
		</tr>
		<tr >
			<td >FGF 2 Human (expressed in E. coli, non-glycosylated)</td>
			<td >Prospec Bio</td>
			<td >CYT-218</td>
			<td >bFGF, supplement for AFMC medium</td>
		</tr>
		<tr >
			<td >EGF Human, Pichia</td>
			<td >Prospec Bio</td>
			<td >CYT-332&#160;</td>
			<td >EGF, supplement for AFMC medium</td>
		</tr>
		<tr >
			<td >LR3 Insulin Like Growth Factor-1 Human Recombinant</td>
			<td >Prospec Bio</td>
			<td >CYT-022</td>
			<td >IGF, supplement for AFMC medium</td>
		</tr>
		<tr >
			<td >Fetal Bovine Serum, embryonic stem cell-qualified</td>
			<td >Thermo-Fisher</td>
			<td >10439024</td>
			<td >FBS</td>
		</tr>
		<tr >
			<td >Antibiotic-Antimycotic (100X)</td>
			<td >Thermo-Fisher</td>
			<td >15240062&#160;</td>
			<td >for primary AFSC/AMSC, for routine AFSC/AMSC it should not be necessary, do not use in medium for transfected cells!</td>
		</tr>
		<tr >
			<td >Accutase cell detachment solution</td>
			<td >StemCell Technologies</td>
			<td >07920</td>
			<td >cell detachment enzyme</td>
		</tr>
		<tr >
			<td >CryoStor&#8482; CS10</td>
			<td >StemCell Technologies</td>
			<td >07930</td>
			<td >complete freezing medium</td>
		</tr>
		<tr >
			<td >PBS, pH 7.4</td>
			<td >Thermo-Fisher Scientific</td>
			<td >10010023&#160;</td>
			<td ></td>
		</tr>
		<tr >
			<td >EndoFree Plasmid Maxi Kit (10)</td>
			<td >Qiagen</td>
			<td >12362</td>
			<td >for plasmid isolation</td>
		</tr>
		<tr >
			<td >pEP4 E02S EN2K</td>
			<td >Addgene</td>
			<td >20925</td>
			<td >EN2K, reprogramming factors Oct4+Sox2, Nanog+Klf4</td>
		</tr>
		<tr >
			<td >pEP4 E02S ET2K</td>
			<td >Addgene</td>
			<td >20927</td>
			<td >ET2K, reprogramming factors Oct4+Sox2, SV40LT+Klf4</td>
		</tr>
		<tr >
			<td >pCEP4-M2L</td>
			<td >Addgene</td>
			<td >20926</td>
			<td >M2L, reprogramming factors c-Myc+LIN28</td>
		</tr>
		<tr >
			<td >NanoDrop 2000c UV-Vis Spectrophotometer</td>
			<td >Thermo-Fisher</td>
			<td >ND-2000C</td>
			<td >spectrophotometer</td>
		</tr>
		<tr >
			<td >Neon&#174; Transfection System</td>
			<td >Thermo-Fisher</td>
			<td >MPK5000</td>
			<td >transfection system, components: 
			Neon pipette - transfection pipette 
			Neon device - transfection device</td>
		</tr>
		<tr >
			<td >Neon&#174; Transfection System 10 &#181;L Kit</td>
			<td >Thermo-Fisher</td>
			<td >MPK1025</td>
			<td >consumables kit for the Neon Transfection System, it contains: 
			Neon tip - transfection tip 
			Neon tube - transfection tube 
			buffer R - resuspension buffer 
			buffer E - electrolytic buffer</td>
		</tr>
		<tr >
			<td >Stemolecule&#8482; Sodium Butyrate</td>
			<td >StemGent</td>
			<td >04-0005</td>
			<td >small molecule enhancer of reprogramming</td>
		</tr>
		<tr >
			<td >TeSR-E8</td>
			<td >StemCell Technologies</td>
			<td >05940</td>
			<td >E8 medium</td>
		</tr>
		<tr >
			<td >Vitronectin XF&#8482;</td>
			<td >StemCell Technologies</td>
			<td >07180</td>
			<td >VTN, stock concentration 250 &#181;g/ml, used for coating at 1 &#181;g/cm2 in vitronectin dilution (CellAdhere) buffer</td>
		</tr>
		<tr >
			<td >CellAdhere&#8482; Dilution Buffer</td>
			<td >StemCell Technologies</td>
			<td >07183</td>
			<td >vitronectin dilution buffer</td>
		</tr>
		<tr >
			<td >UltraPure&#8482; 0.5M EDTA, pH 8.0</td>
			<td >Thermo-Fisher</td>
			<td >15575020</td>
			<td >dilute with PBS to 0.5 mM before use</td>
		</tr>
		<tr >
			<td >EVOS&#174; FL Imaging System</td>
			<td >Thermo-Fisher Scientific</td>
			<td >AMF4300</td>
			<td >LCD imaging microscope system</td>
		</tr>
		<tr >
			<td >CKX53 Inverted Microscope</td>
			<td >Olympus</td>
			<td ></td>
			<td >phase contrast cell culture microscope</td>
		</tr>
		<tr >
			<td >Pierce&#8482; 16% Formaldehyde (w/v), Methanol-free</td>
			<td >Thermo-Fisher</td>
			<td >28908</td>
			<td >dilute to 4% with PBS before use, diluted can be stored at 2-8 &#176;C for 1 week</td>
		</tr>
		<tr >
			<td >Perm Buffer III</td>
			<td >BD Biosciences</td>
			<td >558050</td>
			<td >permeabilization buffer, chill to -20 &#176;C before use</td>
		</tr>
		<tr >
			<td >Mouse IgG1, &#954; Isotype Control, Alexa Fluor&#174; 488</td>
			<td >BD Biosciences</td>
			<td >557782</td>
			<td >isotype control for Oct3/4A, Nanog</td>
		</tr>
		<tr >
			<td >Mouse IgG1, &#954; Isotype Control, Alexa Fluor&#174; 647</td>
			<td >BD Biosciences</td>
			<td >557783</td>
			<td >isotype control for Sox2</td>
		</tr>
		<tr >
			<td >Mouse anti-human Oct3/4 (Human Isoform A), Alexa Fluor&#174; 488</td>
			<td >BD Biosciences</td>
			<td >561628</td>
			<td ></td>
		</tr>
		<tr >
			<td >Mouse anti-human Nanog, Alexa Fluor&#174; 488</td>
			<td >BD Biosciences</td>
			<td >560791</td>
			<td ></td>
		</tr>
		<tr >
			<td >Mouse anti-human Sox-2, Alexa Fluor&#174; 647</td>
			<td >BD Biosciences</td>
			<td >562139</td>
			<td ></td>
		</tr>
		<tr >
			<td >Mouse IgGM, &#954; Isotype Control, Alexa Fluor&#174; 488</td>
			<td >BD Biosciences</td>
			<td >401617</td>
			<td >isotype control for TRA-1-60</td>
		</tr>
		<tr >
			<td >Mouse IgGM, &#954; Isotype Control, Alexa Fluor&#174; 647</td>
			<td >BD Biosciences</td>
			<td >401618</td>
			<td >isotype control for TRA-1-81</td>
		</tr>
		<tr >
			<td >Mouse anti-human TRA-1-60, Alexa Fluor&#174; 488</td>
			<td >BD Biosciences</td>
			<td >330613</td>
			<td ></td>
		</tr>
		<tr >
			<td >Mouse anti-human TRA-1-81, Alexa Fluor&#174; 647</td>
			<td >BD Biosciences</td>
			<td >330705</td>
			<td ></td>
		</tr>
		<tr >
			<td >Mouse IgG1, &#954; Isotype Control, Alexa Fluor&#174; 488</td>
			<td >BD Biosciences</td>
			<td >400129</td>
			<td >isotype control for SSEA-1</td>
		</tr>
		<tr >
			<td >Mouse IgG3, &#954; Isotype Control, Alexa Fluor&#174; 647</td>
			<td >BD Biosciences</td>
			<td >401321</td>
			<td >isotype control for SSEA-4</td>
		</tr>
		<tr >
			<td >Mouse anti-human SSEA-1, Alexa Fluor&#174; 488</td>
			<td >BD Biosciences</td>
			<td >323010</td>
			<td ></td>
		</tr>
		<tr >
			<td >Mouse anti-human SSEA-4, Alexa Fluor&#174; 647</td>
			<td >BD Biosciences</td>
			<td >330407</td>
			<td ></td>
		</tr>
		<tr >
			<td >Affinipure F(ab&#39;)2 Fragment Goat Anti-Mouse IgG+IgM, Alexa Fluor&#174; 488</td>
			<td >Jackson Immunoresearch</td>
			<td >115-606-068</td>
			<td >use at a dilution of 1:600 or further optimize</td>
		</tr>
		<tr >
			<td >Affinipure F(ab&#39;)2 Fragment Goat Anti-Mouse IgG+IgM, Alexa Fluor&#174; 647</td>
			<td >Jackson Immunoresearch</td>
			<td >115-546-068</td>
			<td >use at a dilution of 1:600 or further optimize</td>
		</tr>
		<tr >
			<td >DAPI</td>
			<td >Thermo-Fisher Scientific</td>
			<td >D21490</td>
			<td >stock solution 10 mM, further dilute to 1:12.000 for a working solution</td>
		</tr>
		<tr >
			<td >Corning&#174; Matrigel&#174; Growth Factor Reduced, Phenol Red-Free</td>
			<td >Corning</td>
			<td >356231</td>
			<td >basement membrane matrix (BMM)</td>
		</tr>
		<tr >
			<td >scid-beige mice, female</td>
			<td >Taconic</td>
			<td >CBSCBG-F</td>
			<td ></td>
		</tr>
		<tr >
			<td >RNeasy Plus Mini Kit (50)</td>
			<td >Qiagen</td>
			<td >74134</td>
			<td >RNA isolation kit</td>
		</tr>
		<tr >
			<td >T-25 flasks, tissue culture-treated</td>
			<td >Thermo-Fisher</td>
			<td >156367</td>
			<td ></td>
		</tr>
		<tr >
			<td >T-75 flasks, tissue culture-treated</td>
			<td >Thermo-Fisher</td>
			<td >156499</td>
			<td ></td>
		</tr>
		<tr >
			<td >Nunc&#8482; tissue-culture dish</td>
			<td >Thermo-Fisher</td>
			<td >12-567-650&#160;</td>
			<td >10 cm tissue culture dish</td>
		</tr>
		<tr >
			<td >6-well plates, tissue-culture treated</td>
			<td >Thermo-Fisher</td>
			<td >140675</td>
			<td ></td>
		</tr>
		<tr >
			<td >Neubauer counting chamber (hemacytometer)</td>
			<td >VWR</td>
			<td >15170-173</td>
			<td ></td>
		</tr>
		<tr >
			<td >Mr. Frosty&#8482; Freezing Container</td>
			<td >Thermo-Fisher</td>
			<td >5100-0001&#160;</td>
			<td >freezing container</td>
		</tr>
		<tr >
			<td >FACS tubes, Round Bottom Polystyrene Test Tube, 5ml</td>
			<td >Corning</td>
			<td >352058</td>
			<td >5 ml polystyrene tubes</td>
		</tr>
		<tr >
			<td >Eppendorf tubes, 1.5 ml</td>
			<td >Thermo-Fisher</td>
			<td >05-402-96</td>
			<td >1.5 ml microcentrifuge tubes</td>
		</tr>
		<tr >
			<td >PCR tubes, 200 &#181;l</td>
			<td >Thermo-Fisher</td>
			<td >14-222-262</td>
			<td ></td>
		</tr>
		<tr >
			<td >pipette tips, 100 to 1250 &#181;l</td>
			<td >Thermo-Fisher</td>
			<td >02-707-407</td>
			<td >narrow-bore 1 mL tips</td>
		</tr>
		<tr >
			<td >pipette tips, 5 to 300 &#181;l</td>
			<td >Thermo-Fisher</td>
			<td >02-707-410</td>
			<td ></td>
		</tr>
		<tr >
			<td >pipette tips, 0.1 to 10 &#181;l</td>
			<td >Thermo-Fisher</td>
			<td >02-707-437</td>
			<td ></td>
		</tr>
		<tr >
			<td >wide-bore pipette tips, 1000 &#181;l</td>
			<td >VWR</td>
			<td >89049-166</td>
			<td >wide-bore 1 mL tips</td>
		</tr>
		<tr >
			<td >glass Pasteur pipettes</td>
			<td >Thermo-Fisher</td>
			<td >13-678-20A</td>
			<td ></td>
		</tr>
		<tr >
			<td >ethanol, 200 proof</td>
			<td >Thermo-Fisher</td>
			<td >04-355-451</td>
			<td ></td>
		</tr>
		<tr >
			<td >vortex mixer</td>
			<td >VWR</td>
			<td >10153-842</td>
			<td ></td>
		</tr>
		<tr >
			<td >chambered coverglass, 8-well, 1.5mm borosilicate glass</td>
			<td >Thermo-Fisher</td>
			<td >155409</td>
			<td >glass-bottom confocal-grade cultureware</td>
		</tr>
		<tr >
			<td >22G needles</td>
			<td >VWR</td>
			<td >82002-366</td>
			<td ></td>
		</tr>
		<tr >
			<td >insulin syringes</td>
			<td >Thermo-Fisher</td>
			<td >22-253-260</td>
			<td ></td>
		</tr>
		<tr >
			<td >Formalin solution, neutral buffered, 10%</td>
			<td >Sigma-Aldrich</td>
			<td >HT501128-4L</td>
			<td >fixation of explanted teratomas</td>
		</tr>
		<tr >
			<td >Illumina HT-12 v4 Expression BeachChip</td>
			<td >Illumina</td>
			<td >BD-103-0204</td>
			<td >expression microarray, supported by PluriTest, discontinued by manufacturer</td>
		</tr>
		<tr >
			<td >PrimeView Human Genome U219 Array Plate</td>
			<td >Thermo-Fisher</td>
			<td >901605</td>
			<td >expression microarray (formerly Affymetrix brand), soon to be supported by PluriTest</td>
		</tr>
		<tr >
			<td >GeneChip&#8482; Human Genome U133 Plus 2.0 Array</td>
			<td >Thermo-Fisher</td>
			<td >902482</td>
			<td >expression microarray (formerly Affymetrix brand), supported by CellNet, soon to be supported by PluriTest</td>
		</tr>
		<tr >
			<td >PluriTest&#174;</td>
			<td >Coriell Institute</td>
			<td ></td>
			<td >www.pluritest.org, free service for bioinformatic assessment of pluripotency, accepts microarray data - *.idat files from HT-12 v4 platform, soon to support U133, U219 microarray and RNA sequencing data</td>
		</tr>
		<tr >
			<td >CellNet</td>
			<td >Johns Hopkins University</td>
			<td ></td>
			<td >cellnet.hms.harvard.edu, free service for bioinformatic identification of cell type, including plutipotent stem cells, based on U133 microarray data - *.cel files, soon to support RNA sequencing data</td>
		</tr>
	</tbody>
</table>

reprogramming primary amniotic fluid and membrane cells to pluripotency in xeno-free conditions

Terapie basate su cellule autologhe ha un passo più vicino alla realtà con l'introduzione di cellule staminali pluripotenti indotte. Cellule staminali embrionali, come il liquido amniotico e cellule staminali mesenchimali di membrana, rappresentano un tipo unico di cellule non differenziate con promessa in ingegneria tissutale e per riprogrammare in iPSC per futuri interventi pediatrici e bancaggio delle cellule staminali. Il protocollo presentato qui descrive una procedura ottimizzata per l'estrazione e la coltura primaria amniotico liquido e la membrana delle cellule staminali mesenchimali e generando episomal indotta da cellule staminali pluripotenti da queste cellule in cultura completamente chimicamente definita condizioni che utilizzano umano ricombinante vitronectina e il mezzo di E8. Caratterizzazione delle nuove linee applicando metodi rigorosi – flusso cytometry, imaging confocale, la formazione di teratoma e profiling trascrizionale – inoltre è descritto. Le linee appena generate esprimono marcatori di cellule staminali embrionali – Oct3/4A, Nanog, Sox2, TRA-1-60, TRA-1-81, SSEA-4 – pur essendo negativo per il marcatore di SSEA-1. Le linee di cellule staminali formano i teratomas in topi scid-beige in 6-8 settimane e i teratomas contengono tessuti rappresentativi di tutti i tre strati di germe. Profiling trascrizionale delle linee di invio dei dati di microarray di espressione globale a un algoritmo di valutazione pluripotenza bioinformatic ritenute tutte le linee pluripotenti e di conseguenza, questo approccio è un'attraente alternativa alla sperimentazione animale. Le nuove linee di iPSC prontamente possono essere utilizzate in esperimenti a valle che coinvolgono l'ottimizzazione di differenziazione e dell'ingegneria tissutale.

Consenso informato scritto è stato ottenuto dai pazienti prima della raccolta del liquido amniotico per scopi di test genetici e dedicando una piccola aliquota del fluido per la ricerca. Nessun consenso è richiesto per l'uso della membrana amniotica nella ricerca, come la placenta rappresenta rifiuti sanitari. Le cellule staminali della membrana e del liquido amniotico tipico mesenchymal proprietà di visualizzazione, morfologicamente le loro cellule sono fusiformi e fase-brillante. Al ...

Watch this Scientific Journal Video about Reprogramming Primary Amniotic Fluid and Membrane Cells to Pluripotency in Xeno-free Conditions at JoVE.com

Reprogramming Primary Amniotic Fluid and Membrane Cells to Pluripotency in Xeno-free Conditions

Questo protocollo descrive la riprogrammazione di primaria amniotico liquido e membrana di cellule staminali mesenchimali in cellule staminali pluripotenti indotte utilizzando un approccio episomal non-integrazione in condizioni completamente chimicamente definite. Procedure di estrazione, cultura, riprogrammazione e caratterizzazione delle cellule staminali pluripotenti indotte risultanti dai rigorosi metodi sono dettagliate.

Riprogrammazione primario del liquido amniotico e le celle a membrana di pluripotenza in condizioni prive di Xeno

Autologous cell-based therapies got a step closer to reality with the introduction of induced pluripotent stem cells. Fetal stem cells, such as amniotic ...

Research

JoVE Journal

Developmental Biology

Stable and Efficient Genetic Modification of Cells in the Adult Mouse V-SVZ for the Analysis of Neural Stem Cell Autonomous and Non-autonomous Effects

Stabile ed efficiente Modificazione genetica di cellule nel topo adulto V-SVZ per l&#39;analisi di cellule staminali neurali autonoma ed effetti non autonomi

Relatively quiescent somatic stem cells support life-long cell renewal in most adult tissues. Neural stem cells in the adult mammalian brain are ...

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Biologia dello sviluppo

The Production of Pluripotent Stem Cells from Mouse Amniotic Fluid Cells Using a Transposon System

La produzione di cellule staminali pluripotenti da mouse amniotico cellule del liquido Utilizzando un sistema di trasposoni

Induced pluripotent stem (iPS) cells are generated from mouse and human somatic cells by forced expression of defined transcription factors using ...

Production and Administration of Therapeutic Mesenchymal Stem/Stromal Cell (MSC) Spheroids Primed in 3-D Cultures Under Xeno-free Conditions

Production and Administration of Therapeutic Mesenchymal Stem/Stromal Cell MSC Spheroids Primed in 3-D Cultures Under Xeno-free Conditions

Produzione e somministrazione di Therapeutic staminali mesenchimali / stromali cellulare (MSC) Spheroids innescato in Culture 3-D, in condizioni Xeno-free

Mesenchymal stem/stromal cells (MSCs) hold great promise in bioengineering and regenerative medicine. MSCs can be isolated from multiple adult tissues via ...

Conditional Reprogramming of Pediatric Human Esophageal Epithelial Cells for Use in Tissue Engineering and Disease Investigation

La riprogrammazione di cellule condizionale Pediatric umana esofageo epiteliali per l&#39;uso in ingegneria dei tessuti e la malattia Investigation

Identifying and expanding patient-specific cells in culture for use in tissue engineering and disease investigation can be very challenging. Utilizing ...

Computational Analysis of the Caenorhabditis elegans Germline to Study the Distribution of Nuclei, Proteins, and the Cytoskeleton

Computational Analysis of the Caenorhabditis elegans Germline to Study the Distribution of Nuclei, Proteins, and the Cytoskeleton

Analisi computazionale della linea germinale Caenorhabditis elegans di studiare la distribuzione dei Nuclei, le proteine ed il citoscheletro

The Caenorhabditis elegans (C. elegans) germline is used to study several biologically important processes including stem cell development, apoptosis, and ...

Induction and Validation of Cellular Senescence in Primary Human Cells

Induzione e convalida della senescenza cellulare in cellule umane primarie

Cellular senescence is a state of permanent cell cycle arrest activated in response to different damaging stimuli. Activation of cellular senescence is a ...

Defined Xeno-free and Feeder-free Culture Conditions for the Generation of Human iPSC-derived Retinal Cell Models

Condizioni di coltura privo di alimentatore per i modelli di cellula retinica iPSC-derivato generazione umana e definito privo di Xeno

The production of specialized cells from pluripotent stem cells provides a powerful tool to develop new approaches for regenerative medicine. The use of ...

Intravenous and Intra-amniotic In Utero Transplantation in the Murine Model

Intravenous and Intra-amniotic In Utero Transplantation in the Murine Model

Endovenosa e Intra-amniotic nell'Utero trapianto nel modello murino

In utero transplantation (IUT) is a unique and versatile mode of therapy that can be used to introduce stem cells, viral vectors, or any other substances ...

Induction of Endothelial Differentiation in Cardiac Progenitor Cells Under Low Serum Conditions

Induzione di differenziazione endoteliale in cellule progenitrici cardiache in condizioni di basso del siero

Cardiac progenitor cells (CPCs) may have therapeutic potential for cardiac regeneration after injury. In the adult mammalian heart, intrinsic CPCs are ...

Direct Lineage Reprogramming of Adult Mouse Fibroblast to Erythroid Progenitors

Diretto lignaggio riprogrammazione di fibroblasti di topo adulto ai progenitori eritroidi

Erythroid cell commitment and differentiation proceed through activation of a lineage-restricted transcriptional network orchestrated by a group of cell ...