Name: transplantation of induced pluripotent stem cell-derived mesoangioblast-like myogenic progenitors in mouse models of muscle regeneration
Uploaded: 2014-01-20T13:00:00
Description: Watch this Scientific Journal Video about Transplantation of Induced Pluripotent Stem Cell-derived Mesoangioblast-like Myogenic Progenitors in Mouse Models of Muscle Regeneration at JoVE.com

Forfatterne takker Giulio Cossu, Martina Ragazzi og hele laboratoriet for nyttig diskussion og støtte, og Jeff Chamberlain for venligt at give MyoD-ER vektor. Alle forsøg med levende dyr blev gennemført i overensstemmelse med og i overensstemmelse med alle relevante lovgivningsmæssige og institutionelle agenturer, forordninger og retningslinjer. Arbejdet i forfatternes laboratorium støttes af UK Medical Research Council, Det Europæiske Fællesskabs 7. rammeprogram Optistem og Biodesign og det italienske Duchenne Parent Project.

1. Vurdering af myogenisk og engraftment potentiale
<ol><li>
In vitro: MyoD-induceret differentiering<ol>
<li>Generer en stabil cellelinje af IDEM'er, der transduceres med den tamoxifen-uucerbare MyoD-ER lentivirale vektor, der titrerer infektionens mangfoldighed (MOI; f.eks. 1, 5 og 50) ved hjælp af farvningen som beskrevet i 1.1.9 (MyHC) som et resultat af procedurens effektivitet.</li>
		<li>Coat en 3,5 cm skål med 1 ml 1% Matrigel og inkuber i 30 min ved 37 °C.</li>
		<li>Pladen vaskes to gange...

<ol>
	<li>Dellavalle, 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=Pericytes+of+human+skeletal+muscle+are+myogenic+precursors+distinct+from+satellite+cells.">Pericytes of human skeletal muscle are myogenic precursors distinct from satellite cells.</a> Nat. Cell Biol. 9, 255-267 (2007).</li><li>Minasi, M. 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=The+meso-angioblast:+a+multipotent,+self-renewing+cell+that+originates+from+the+dorsal+aorta+and+differentiates+into+most+mesodermal+tissues.">The meso-angioblast: a multipotent, self-renewing cell that originates from the dorsal aorta and differentiates into most mesodermal tissues.</a> Development. 129, 2773-2783 (2002).</li><li>Dellavalle, 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=Pericytes+resident+in+postnatal+skeletal+muscle+differentiate+into+muscle+fibres+and+generate+satellite+cells.">Pericytes resident in postnatal skeletal muscle differentiate into muscle fibres and generate satellite cells.</a> Nat. Commun. 2, 499 (2011).</li><li>Tedesco, F. S., Dellavalle, A., Diaz-Manera, J., Messina, G., Cossu, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Repairing+skeletal+muscle:+regenerative+potential+of+skeletal+muscle+stem+cells.">Repairing skeletal muscle: regenerative potential of skeletal muscle stem cells.</a> J. Clin. Invest. 120, 11-19 (2010).</li><li>Sampaolesi, 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=Cell+therapy+of+alpha-sarcoglycan+null+dystrophic+mice+through+intra-arterial+delivery+of+mesoangioblasts.">Cell therapy of alpha-sarcoglycan null dystrophic mice through intra-arterial delivery of mesoangioblasts.</a> Science. 301, 487-492 (2003).</li><li>Sampaolesi, 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=Mesoangioblast+stem+cells+ameliorate+muscle+function+in+dystrophic+dogs.">Mesoangioblast stem cells ameliorate muscle function in dystrophic dogs.</a> Nature. 444, 574-579 (2006).</li><li>Tedesco, F. 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=Transplantation+of+Genetically+Corrected+Human+iPSC-Derived+Progenitors+in+Mice+with+Limb-Girdle+Muscular+Dystrophy.">Transplantation of Genetically Corrected Human iPSC-Derived Progenitors in Mice with Limb-Girdle Muscular Dystrophy.</a> Sci. Transl. Med. 4, (2012).</li><li>Tedesco, F. 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=Stem+cell-mediated+transfer+of+a+human+artificial+chromosome+ameliorates+muscular+dystrophy.">Stem cell-mediated transfer of a human artificial chromosome ameliorates muscular dystrophy.</a> Sci. Transl. Med. 3, (2011).</li><li>Lattanzi, 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=High+efficiency+myogenic+conversion+of+human+fibroblasts+by+adenoviral+vector-mediated+MyoD+gene+transfer.+An+alternative+strategy+for+ex+vivo+gene+therapy+of+primary+myopathies.">High efficiency myogenic conversion of human fibroblasts by adenoviral vector-mediated MyoD gene transfer. An alternative strategy for ex vivo gene therapy of primary myopathies.</a> J. Clin. Invest. 101, 2119-2128 (1998).</li><li>Chaouch, 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=Immortalized+skin+fibroblasts+expressing+conditional+MyoD+as+a+renewable+and+reliable+source+of+converted+human+muscle+cells+to+assess+therapeutic+strategies+for+muscular+dystrophies:+validation+of+an+exon-skipping+approach+to+restore+dystrophin+in+Duchenne+muscular+dystrophy+cells.">Immortalized skin fibroblasts expressing conditional MyoD as a renewable and reliable source of converted human muscle cells to assess therapeutic strategies for muscular dystrophies: validation of an exon-skipping approach to restore dystrophin in Duchenne muscular dystrophy cells.</a> Hum. Gene Ther. 20, 784-790 (2009).</li><li>Kimura, 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=Cell-lineage+regulated+myogenesis+for+dystrophin+replacement:+a+novel+therapeutic+approach+for+treatment+of+muscular+dystrophy.">Cell-lineage regulated myogenesis for dystrophin replacement: a novel therapeutic approach for treatment of muscular dystrophy.</a> Hum. Mol. Genet. 17, 2507-2517 (2008).</li><li>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=Induced+pluripotent+stem+cells:+past,+present,+and+future.">Induced pluripotent stem cells: past, present, and future.</a> Cell Stem Cell. 10, 678-684 (2012).</li><li>Wu, S. M., Hochedlinger, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Harnessing+the+potential+of+induced+pluripotent+stem+cells+for+regenerative+medicine.">Harnessing the potential of induced pluripotent stem cells for regenerative medicine.</a> Nat. Cell Biol. 13, 497-505 (2011).</li></ol>

IPSC'er kan udvides på ubestemt tid , samtidig med at deres selvfornyelsespotentiale bevares , og dermed rettes mod at differentiere sig til en bred vifte af cellelinjer12. Af denne og andre grunde betragtes iPSC-afledte stamceller/stamceller som en lovende kilde til autologe gen- og celleterapimetoder13. En tidligere offentliggjort arbejde fra forfatterne rapporterede generation af mus og humane myogeniske forfædre fra iPSCs med en fænotype svarende til pericyte-afledte MABs (IDEMs) og deres eff...

Mesoangioblasts (MAB) er kar-associerede muskel forfædre stammer fra en delmængde af pericytes1-3. Den største fordel ved MABs over kanoniske muskel forfædre såsom satellitceller4 ligger i deres evne til at krydse fartøjet væggen, når de leveres intra-arteriel og dermed bidrage til skeletmuskulatur regenerering i celleterapi protokoller. Denne funktion er blevet evalueret og bekræftet i både murin- og hundemodeller af muskeldystrofi1,5,6. Disse prækliniske undersøgelser har bygget grundlaget for et første-i-mand fase I/II klinisk forsøg baseret på intra-arteriel transplantation af donor HLA-identiske MABs hos børn med Duchenne muskeldystrofi (EudraCT nr. 2011-000176-33; i øjeblikket på vej på San Raffaele Hospital i Milano, Italien). En af de største forhindringer for celleterapi tilgange, hvor milliarder af celler er nødvendige for at behandle musklen i en hel krop, er den begrænsede proliferative potentiale "lægemiddel" (cellerne). Desuden er det for nylig blevet påvist, at det ikke er muligt at få maBs fra patienter, der er ramt af visse former for muskeldystrofi, da det forekommer i limb-girdle muskeldystrofi 2D (LGMD2D; OMIM #608099)7.
For at overvinde disse begrænsninger er der for nylig blevet udarbejdet en protokol for afledning af MAB-lignende stamceller/stamceller fra humane og murin-iPSC'er7. Denne procedure genererer let udvides cellepopulationer med en vaskulær gen signatur og immunophenotype meget lig voksne muskel-afledte MABs. Efter udtryk for den myogeniske reguleringsfaktor MyoD gennemgår både murin og menneskelige IDEM'er (henholdsvis MIDEMs og HIDEMs) terminal skeletmuskeldifferentiering. For at nå dette mål IDEMs kan transduceres med vektorer i stand til at køre MyoD udtryk, enten konstituerende eller i en inducible måde8-10. Der anvendes en lentiviral vektor, der indeholder MyoD cDNA, fusioneret med østrogenreceptoren (MyoD-ER), hvilket gør det muligt at overføre den på tamoxifen (en østrogenanalog) administration11. Denne strategi resulterer i dannelsen af hypertrofiske multinukleerede myorør med høj effektivitet7. Især IDEM'er er ikke-kønsopdemærksom, kan engraft og differentiere inde værtsmuskler ved transplantation og kan genetisk korrigeres ved hjælp af forskellige vektorer(f.eks lentivirus eller humane kunstige kromosomer), hvilket baner vejen for fremtidige autologe terapeutiske strategier. Afledning, karakterisering og transplantation af IDEM'er er beskrevet i ovennævntepublikation 7. Denne protokol papir beskriver de assays udført for at evaluere in vitro myogen differentiering af IDEMs og de efterfølgende resultatmålinger for at teste effekten af deres transplantation i musemodeller af muskel regenerering.

<table border="1">
	<tbody>
		<tr>
			<td></td>
			<td></td>
			<td></td>
			<td>REAGENTS</td>
		</tr>
		<tr>
			<td>MegaCell DMEM</td>
			<td>Sigma</td>
			<td>M3942</td>
			<td></td>
		</tr>
		<tr>
			<td>DMEM</td>
			<td>Sigma</td>
			<td>D5671</td>
			<td></td>
		</tr>
		<tr>
			<td>IMDM</td>
			<td>Sigma</td>
			<td>I3390</td>
			<td></td>
		</tr>
		<tr>
			<td>Horse serum</td>
			<td>Euroclone</td>
			<td>ECS0090L</td>
			<td></td>
		</tr>
		<tr>
			<td>Foetal Bovine Serum</td>
			<td>Lonza</td>
			<td>DE14801F</td>
			<td></td>
		</tr>
		<tr>
			<td>PBS Calcium/Magnesium free</td>
			<td>Lonza</td>
			<td>BE17-516F</td>
			<td></td>
		</tr>
		<tr>
			<td>L-Glutammine</td>
			<td>Sigma</td>
			<td>G7513</td>
			<td></td>
		</tr>
		<tr>
			<td>Penicilline/Streptomicin</td>
			<td>Sigma</td>
			<td>P0781</td>
			<td></td>
		</tr>
		<tr>
			<td>2-Mercaptoethanol</td>
			<td>Gibco</td>
			<td>31350-010</td>
			<td></td>
		</tr>
		<tr>
			<td>ITS (Insulin-Transferrin-Selenium)</td>
			<td>Gibco</td>
			<td>51500-056</td>
			<td></td>
		</tr>
		<tr>
			<td>Non-essential amino acid solution</td>
			<td>Sigma</td>
			<td>M7145</td>
			<td></td>
		</tr>
		<tr>
			<td>Fer-In-Sol</td>
			<td>Mead Johnson</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Ferlixit</td>
			<td>Aventis</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Oleic Acid</td>
			<td>Sigma</td>
			<td>01257-10 mg</td>
			<td></td>
		</tr>
		<tr>
			<td>Linoleic Acid</td>
			<td>Sigma</td>
			<td>L5900-10 mg</td>
			<td></td>
		</tr>
		<tr>
			<td>Human bFGF</td>
			<td>Gibco</td>
			<td>AA 10-155</td>
			<td></td>
		</tr>
		<tr>
			<td>Grow factors-reduced Matrigel</td>
			<td>Becton Dickinson</td>
			<td>356230</td>
			<td></td>
		</tr>
		<tr>
			<td>Trypsin</td>
			<td>Sigma</td>
			<td>T3924</td>
			<td></td>
		</tr>
		<tr>
			<td>Sodium heparin</td>
			<td>Mayne Pharma</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Trypan blue solution</td>
			<td>Sigma</td>
			<td>T8154</td>
			<td>HARMFUL</td>
		</tr>
		<tr>
			<td>Patent blue dye</td>
			<td>Sigma</td>
			<td>19, 821-8</td>
			<td></td>
		</tr>
		<tr>
			<td>EDTA</td>
			<td>Sigma</td>
			<td>E-4884</td>
			<td></td>
		</tr>
		<tr>
			<td>Paraformaldehyde</td>
			<td>TAAB</td>
			<td>P001</td>
			<td>HARMFUL</td>
		</tr>
		<tr>
			<td>Tamoxifen</td>
			<td>Sigma</td>
			<td>T5648</td>
			<td></td>
		</tr>
		<tr>
			<td>4-OH Tamoxifen</td>
			<td>Sigma</td>
			<td>H7904</td>
			<td></td>
		</tr>
		<tr>
			<td>pLv-CMV-MyoD-ER(T)</td>
			<td>Addgene</td>
			<td>26809</td>
			<td></td>
		</tr>
		<tr>
			<td>Cardiotoxin</td>
			<td>Sigma</td>
			<td>C9759</td>
			<td>HARMFUL</td>
		</tr>
		<tr>
			<td>Povidone iodine</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Tragachant gum</td>
			<td>MP biomedicals</td>
			<td>104792</td>
			<td></td>
		</tr>
		<tr>
			<td>Isopenthane</td>
			<td>VWR</td>
			<td>24,872,323</td>
			<td></td>
		</tr>
		<tr>
			<td>Tissue-tek OCT</td>
			<td>Sakura</td>
			<td>4583</td>
			<td></td>
		</tr>
		<tr>
			<td>Sucrose</td>
			<td>VWR</td>
			<td>27,480,294</td>
			<td></td>
		</tr>
		<tr>
			<td>Polarized glass slides</td>
			<td>Thermo</td>
			<td>J1800AMNZ</td>
			<td></td>
		</tr>
		<tr>
			<td>Eosin Y</td>
			<td>Sigma</td>
			<td>E4382</td>
			<td></td>
		</tr>
		<tr>
			<td>Hematoxylin</td>
			<td>Sigma</td>
			<td>HHS32</td>
			<td></td>
		</tr>
		<tr>
			<td>Masson&#39;s trichrome</td>
			<td>Bio-Optica</td>
			<td>04-010802</td>
			<td></td>
		</tr>
		<tr>
			<td>Mouse anti Myosin Heavy Chain antibody</td>
			<td>DSHB</td>
			<td>MF20</td>
			<td></td>
		</tr>
		<tr>
			<td>Mouse anti Lamin A/C antibody</td>
			<td>Novocastra</td>
			<td>NLC-LAM-A/C</td>
			<td></td>
		</tr>
		<tr>
			<td>4/11/13</td>
			<td>Cappel</td>
			<td>559762</td>
			<td></td>
		</tr>
		<tr>
			<td>Hoechst 33342</td>
			<td>Sigma fluka</td>
			<td>B2261</td>
			<td></td>
		</tr>
		<tr>
			<td>Rabbit anti Laminin antibody</td>
			<td>Sigma</td>
			<td>L9393</td>
			<td></td>
		</tr>
		<tr>
			<td></td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td></td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td></td>
			<td></td>
			<td></td>
			<td>MATERIALS AND EQUIPMENT</td>
		</tr>
		<tr>
			<td>Adsorbable antibacteric suture 4-0</td>
			<td>Ethicon</td>
			<td>vcp310h</td>
			<td></td>
		</tr>
		<tr>
			<td>30G needle syringe</td>
			<td>BD</td>
			<td>324826</td>
			<td></td>
		</tr>
		<tr>
			<td>Treadmill</td>
			<td>Columbus instrument</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Steromicroscope</td>
			<td>Nikon</td>
			<td>SMZ800</td>
			<td></td>
		</tr>
		<tr>
			<td>Inverted microscope</td>
			<td>Leica</td>
			<td>DMIL LED</td>
			<td></td>
		</tr>
		<tr>
			<td>Isoflurane unit</td>
			<td>Harvad Apparatus</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Fiber optics</td>
			<td>Euromecs (Holland)</td>
			<td>EK1</td>
			<td></td>
		</tr>
		<tr>
			<td>Heating pad</td>
			<td>Vet Tech</td>
			<td>C17A1</td>
			<td></td>
		</tr>
		<tr>
			<td>Scalpels</td>
			<td>Swann-Morton</td>
			<td>11REF050</td>
			<td></td>
		</tr>
		<tr>
			<td>Surgical forceps</td>
			<td>Fine Scientific Tools</td>
			<td></td>
			<td>5/45</td>
		</tr>
		<tr>
			<td>High temperature cauteriser</td>
			<td>Bovie Medical</td>
			<td>AA01</td>
			<td></td>
		</tr>
		<tr>
			<td></td>
			<td></td>
			<td></td>
			<td>MEDIA COMPOSITION</td>
		</tr>
		<tr>
			<td></td>
			<td></td>
			<td></td>
			<td>Media composition is detailed below. 
			HIDEMs growth medium:
			<ul>
				<li>MegaCell Dulbecco&#39;s Modified Eagle Medium (MegaCell DMEM)</li>
				<li>5% fetal bovine serum (FBS)</li>
				<li>2 mM glutamine</li>
				<li>0.1 mM &#946;-mercaptoethanol</li>
				<li>1% non essential amino acids</li>
				<li>5 ng / ml human basic fibroblast growth factor (bFGF)</li>
				<li>100 IU ml penicillin</li>
				<li>100 mg / ml streptomycin</li>
			</ul>
			Alternatively, if some of the above reagents are not available, HIDEMs can be grown in:
			<ul>
				<li>Iscove&#39;s Modified Dulbecco&#39;s Medium (IMDM)</li>
				<li>10 % FBS</li>
				<li>2 mM glutamine</li>
				<li>0.1 mM &#946;-mercaptoethanol</li>
				<li>1% Non essential amino acids (NEAA)</li>
				<li>1% ITS (insulin / transferrin / selenium)</li>
				<li>5 ng / ml human bFGF</li>
				<li>100 IU ml penicillin</li>
				<li>100 mg / ml streptomycin</li>
				<li>0.5 &#956;M oleic and linoleic acids</li>
				<li>1.5 &#956;M Fe2+ (Fer-In-Sol)</li>
				<li>0.12 &#956;M Fe3+ (Ferlixit)</li>
			</ul>
			MIDEMs growth medium:
			<ul>
				<li>DMEM</li>
				<li>20 % FBS</li>
				<li>2 mM glutamine</li>
				<li>5 ng / ml human bFGF</li>
				<li>100 IU ml penicillin</li>
				<li>100 mg / ml streptomycin</li>
			</ul>
			Differentiation medium:
			<ul>
				<li>DMEM</li>
				<li>2 % Horse Serum (HS)</li>
				<li>100 IU ml penicillin</li>
				<li>100 mg / ml streptomycin</li>
				<li>2 mM glutamine</li>
			</ul>
			 
			 
			</td>
		</tr>
		<tr>
			<td></td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
	</tbody>
</table>
Table 1. List of Reagents, Materials, Equipment, and Media.

transplantation of induced pluripotent stem cell-derived mesoangioblast-like myogenic progenitors in mouse models of muscle regeneration

Patient-afledte iPSCs kunne være en uvurderlig kilde til celler til fremtidige autologe celleterapi protokoller. iPSC-afledte myogen stamceller svarende til pericyte-afledte mesoangioblaster (iPSC-afledte mesoangioblastlignende stamceller/stamceller: IDEM'er) kan etableres ud fra iPSC'er, der genereres fra patienter, der er ramt af forskellige former for muskeldystrofi. Patientspecifikke IDEM'er kan genetisk korrigeres med forskellige strategier(f.eks. lentivirale vektorer, humane kunstige kromosomer) og forbedres i deres myogen differentieringspotentiale ved overekspression af myogeneseregulatoren MyoD. Dette myogeniske potentiale vurderes derefter in vitro med specifikke differentieringsanalyser og analyseres ved immunfluorescens. IDEM'ernes regenerative potentiale evalueres yderligere in vivoved intramuskulær og intra-arteriel transplantation i to repræsentative musemodeller, der viser akut og kronisk muskelgendannelse. IDEM'ernes bidrag til værtsmuskulaturen bekræftes derefter af forskellige funktionelle tests i transplanterede mus. Især undersøges forbedringen af dyrenes motorkapacitet med løbebåndstest. Celle engraftment og differentiering vurderes derefter ved en række histologiske og immunfluorescensanalyser på transplanterede muskler. Samlet set beskriver dette papir de analyser og værktøjer, der i øjeblikket anvendes til at evaluere differentieringskapaciteten af IDEM'er, med fokus på transplantationsmetoderne og efterfølgende resultatforanstaltninger til at analysere effekten af celletransplantation.

De rapporterede repræsentative resultater følger de vigtigste in vitro/in vivo-analysepunkter, der er afbildet i arbejdsprocessen i figur 1. 48 timer efter 4OH-tamoxifen administration MyoD-positive kerner kan identificeres inden for MyoD-ER transducerede IDEMs i kultur (Figur 2A). Cellerne smelter derefter sammen og differentieres til multinukleerede myorør (Figur 2B). Ved intramuskulært transplantation til en murinmodel af akut muskelskade bidrager IDEM'er...

Watch this Scientific Journal Video about Transplantation of Induced Pluripotent Stem Cell-derived Mesoangioblast-like Myogenic Progenitors in Mouse Models of Muscle Regeneration at JoVE.com

Transplantation of Induced Pluripotent Stem Cell-derived Mesoangioblast-like Myogenic Progenitors in Mouse Models of Muscle Regeneration

Induceret pluripotente stamceller (iPSC) afledte myogen forfædre er lovende kandidater til celleterapi strategier til behandling af muskeldystrofier. Denne protokol beskriver transplantation og funktionelle målinger, der kræves for at evaluere engraftment og differentiering af iPSC-afledte mesoangioblasts (en type muskel stamfadere) i musemodeller af akut og kronisk muskel regenerering.

Transplantation af induceret pluripotente stamcelle-afledt Mesoangioblast-lignende Myogenic Stamfadere i Mouse Modeller af muskel regenerering

Patient-derived iPSCs could be an invaluable source of cells for future autologous cell therapy protocols. iPSC-derived myogenic stem/progenitor cells ...

Research

JoVE Journal

Bioengineering

Use of Human Perivascular Stem Cells for Bone Regeneration

Brug af menneskelige perivaskulær stamceller til Bone Regeneration

Human perivascular stem cells (PSCs) can be isolated in sufficient numbers from multiple tissues for purposes of skeletal tissue engineering1-3. PSCs are ...

Development, Expansion, and In vivo Monitoring of Human NK Cells from Human Embryonic Stem Cells (hESCs) and Induced Pluripotent Stem Cells (iPSCs)

Development, Expansion, and In vivo Monitoring of Human NK Cells from Human Embryonic Stem Cells hESCs and Induced Pluripotent Stem Cells iPSCs

Udvikling, Expansion, og<em&gt; In vivo</em&gt; Overvågning af menneskerettigheder NK-celler fra humane embryonale stamceller (hESCs), og og induceret pluripotente stamceller (iPSCs)

We present a method for deriving natural killer (NK) cells from undifferentiated hESCs and iPSCs using a feeder-free approach. This method gives rise to ...

Patterning the Geometry of Human Embryonic Stem Cell Colonies on Compliant Substrates to Control Tissue-Level Mechanics

Mønster for geometrien af humane embryonale stamcelle kolonier på kompatible substrater til kontrol af Vævsniveau mekanik

Human embryonic stem cells demonstrate a unique ability to respond to morphogens in vitro by self-organizing patterns of cell fate specification that ...

Isolation of Adult Human Dermal Fibroblasts from Abdominal Skin and Generation of Induced Pluripotent Stem Cells Using a Non-Integrating Method

Isolering af voksne humane Dermal fibroblaster fra abdominal hud og generering af inducerede pluripotente stamceller ved hjælp af en ikke-integrerings metode

Induced pluripotent stem cells (iPSCs) could be considered, to date, a promising source of pluripotent cells for the management of currently untreatable ...

Guided Differentiation of Mature Kidney Podocytes from Human Induced Pluripotent Stem Cells Under Chemically Defined Conditions

Guidet differentiering af modne nyre podocytter fra menneskeskabte pluripotente stamceller under kemisk definerede forhold

Kidney disease affects more than 10% of the global population and costs billions of dollars in federal expenditures. The most severe forms of kidney ...

Single-Cell Optical Action Potential Measurement in Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes

Single-Cell Optisk Action Potentiel måling i human induceret pluripotente stamcelle-afledte kardiomyocytter

Conventional intracellular microelectrode techniques to quantify cardiomyocyte electrophysiology are extremely complex, labor intensive, and typically ...

Developing Drosophila melanogaster Models for Imaging and Optogenetic Control of Cardiac Function

Developing Drosophila melanogaster Models for Imaging and Optogenetic Control of Cardiac Function

Udvikling af Drosophila melanogaster modeller til billeddannelse og optogenetisk kontrol af hjertefunktionen

Using Drosophila melanogaster (fruit fly) as a model organism has ensured significant progress in many areas of biological science, from cellular ...

Isogenic Kidney Glomerulus Chip Engineered from Human Induced Pluripotent Stem Cells

Isogen nyre glomerulus chip konstrueret fra humaninducerede pluripotente stamceller

Chronic kidney disease (CKD) affects 15% of the U.S. adult population, but the establishment of targeted therapies has been limited by the lack of ...

Evaluation of Cardiac Contractility Modulation Therapy in 2D Human Stem Cell-Derived Cardiomyocytes

Evaluering af hjertekontraktilitetsmodulationsterapi i 2D humane stamcelleafledte kardiomyocytter

Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are currently being explored for multiple in vitro applications and have been used ...

Generation of Human Blood Vessel Organoids from Pluripotent Stem Cells

Generering af humane blodkarorganoider fra pluripotente stamceller

An organoid is defined as an engineered multicellular in vitro tissue that mimics its corresponding in vivo organ such that it can be used to study ...