Name: in vivo tracking of human adipose-derived mesenchymal stem cells in a rat knee osteoarthritis model with fluorescent lipophilic membrane dye
Uploaded: 2017-10-08T14:00:00
Description: Watch this Scientific Journal Video about In Vivo Tracking of Human Adipose-derived Mesenchymal Stem Cells in a Rat Knee Osteoarthritis Model with Fluorescent Lipophilic Membrane Dye at JoVE.com

Questo studio è stato supportato da Shanghai finanziamento dell'innovazione (1402H 294300) sponsorizzato dalla scienza e dalla tecnologia Commissione di Shanghai comune (CN) al Dr. Wen Wang. Vorremmo ringraziare il Dr. Guangdong Zhou (nazionale Tissue Engineering Center di Cina) per la sua assistenza tecnica e consulenza scientifica per questo manoscritto. Vorremmo anche ringraziare il signor Huitang Xia (ospedale del popolo di Shanghai nona) per il suo aiuto nel benessere degli animali.

procedure che coinvolgono soggetti animali sono state approvate dal comitato di etica e locali istituzionali Animal Care con uno sforzo per ridurre al minimo la sofferenza animale. Il seguente protocollo è stato approvato dalla istituzionale Animal Care and uso Committee (IACUC) a Shanghai Ninth People &#8217; s ospedale affiliato a Shanghai JiaoTong University School of Medicine con il protocollo numero [2017] 063.
 1. istituzione di un modello di osteoartrite del ginocchio del ratto Surgical...

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L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Osteoarthritis+year+in+review+2016:+clinical.">Osteoarthritis year in review 2016: clinical.</a> Osteoarthritis Cartilage. 25 (2), 209-215 (2017).</li><li>Wang, W., Cao, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Treatment+of+osteoarthritis+with+mesenchymal+stem+cells.">Treatment of osteoarthritis with mesenchymal stem cells.</a> Sci China Life Sci. 57 (6), 586-595 (2014).</li><li>Burke, 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=Therapeutic+potential+of+mesenchymal+stem+cell+based+therapy+for+osteoarthritis.">Therapeutic potential of mesenchymal stem cell based therapy for osteoarthritis.</a> Clin Transl Med. 5 (1), 27 (2016).</li><li>Bendele, A. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Animal+models+of+osteoarthritis.">Animal models of osteoarthritis.</a> J Musculoskelet Neuronal Interact. 1 (4), 363-376 (2001).</li><li>Gerwin, N., Bendele, A. M., Glasson, S., Carlson, C. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+OARSI+histopathology+initiative+-+recommendations+for+histological+assessments+of+osteoarthritis+in+the+rat.">The OARSI histopathology initiative - recommendations for histological assessments of osteoarthritis in the rat.</a> Osteoarthritis Cartilage. 18, S24-S34 (2010).</li><li>Janusz, M. 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=Induction+of+osteoarthritis+in+the+rat+by+surgical+tear+of+the+meniscus:+Inhibition+of+joint+damage+by+a+matrix+metalloproteinase+inhibitor.">Induction of osteoarthritis in the rat by surgical tear of the meniscus: Inhibition of joint damage by a matrix metalloproteinase inhibitor.</a> Osteoarthritis Cartilage. 10 (10), 785-791 (2002).</li><li>Li, 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=In+vivo+human+adipose-derived+mesenchymal+stem+cell+tracking+after+intra-articular+delivery+in+a+rat+osteoarthritis+model.">In vivo human adipose-derived mesenchymal stem cell tracking after intra-articular delivery in a rat osteoarthritis model.</a> Stem Cell Res Ther. 7 (1), 160 (2016).</li><li>Zhou, 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=Administering+human+adipose-derived+mesenchymal+stem+cells+to+prevent+and+treat+experimental+arthritis.">Administering human adipose-derived mesenchymal stem cells to prevent and treat experimental arthritis.</a> Clin Immunol. 141 (3), 328-337 (2011).</li><li>Desando, 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=Intra-articular+delivery+of+adipose+derived+stromal+cells+attenuates+osteoarthritis+progression+in+an+experimental+rabbit+model.">Intra-articular delivery of adipose derived stromal cells attenuates osteoarthritis progression in an experimental rabbit model.</a> Arthritis Res Ther. 15 (1), 22 (2013).</li><li>Riester, S. 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=Safety+Studies+for+Use+of+Adipose+Tissue-Derived+Mesenchymal+Stromal/Stem+Cells+in+a+Rabbit+Model+for+Osteoarthritis+to+Support+a+Phase+I+Clinical+Trial.">Safety Studies for Use of Adipose Tissue-Derived Mesenchymal Stromal/Stem Cells in a Rabbit Model for Osteoarthritis to Support a Phase I Clinical Trial.</a> Stem Cells Transl Med. 6 (3), 910-922 (2017).</li><li>Bai, 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=Tracking+long-term+survival+of+intramyocardially+delivered+human+adipose+tissue-derived+stem+cells+using+bioluminescence+imaging.">Tracking long-term survival of intramyocardially delivered human adipose tissue-derived stem cells using bioluminescence imaging.</a> Mol Imaging Biol. 13 (4), 633-645 (2011).</li><li>Wolbank, 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=Labelling+of+human+adipose-derived+stem+cells+for+non-invasive+in+vivo+cell+tracking.">Labelling of human adipose-derived stem cells for non-invasive in vivo cell tracking.</a> Cell Tissue Bank. 8 (3), 163-177 (2007).</li><li>Heymer, 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=Iron+oxide+labelling+of+human+mesenchymal+stem+cells+in+collagen+hydrogels+for+articular+cartilage+repair.">Iron oxide labelling of human mesenchymal stem cells in collagen hydrogels for articular cartilage repair.</a> Biomaterials. 29 (10), 1473-1483 (2008).</li><li>Hemmrich, K., Meersch, M., von Heimburg, D., Pallua, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Applicability+of+the+dyes+CFSE,+CM-DiI+and+PKH26+for+tracking+of+human+preadipocytes+to+evaluate+adipose+tissue+engineering.">Applicability of the dyes CFSE, CM-DiI and PKH26 for tracking of human preadipocytes to evaluate adipose tissue engineering.</a> Cells Tissues Organs. 184 (3-4), 117-127 (2006).</li><li>Shim, 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=Pharmacokinetics+and+in+vivo+fate+of+intra-articularly+transplanted+human+bone+marrow-derived+clonal+mesenchymal+stem+cells.">Pharmacokinetics and in vivo fate of intra-articularly transplanted human bone marrow-derived clonal mesenchymal stem cells.</a> Stem Cells Dev. 24 (9), 1124-1132 (2015).</li><li>Chen, B. 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=A+safety+study+on+intrathecal+delivery+of+autologous+mesenchymal+stromal+cells+in+rabbits+directly+supporting+Phase+I+human+trials.">A safety study on intrathecal delivery of autologous mesenchymal stromal cells in rabbits directly supporting Phase I human trials.</a> Transfusion. 55 (5), 1013-1020 (2015).</li><li>Chan, M. M., Gray, B. D., Pak, K. Y., Fong, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Non-invasive+in+vivo+imaging+of+arthritis+in+a+collagen-induced+murine+model+with+phosphatidylserine-binding+near-infrared+(NIR)+dye.">Non-invasive in vivo imaging of arthritis in a collagen-induced murine model with phosphatidylserine-binding near-infrared (NIR) dye.</a> Arthritis Res Ther. 17, 50 (2015).</li><li>Texier, I., 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=Cyanine-loaded+lipid+nanoparticles+for+improved+in+vivo+fluorescence+imaging.">Cyanine-loaded lipid nanoparticles for improved in vivo fluorescence imaging.</a> J Biomed Opt. 14 (5), 054005 (2009).</li><li>Honig, M. G., Hume, R. I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Fluorescent+carbocyanine+dyes+allow+living+neurons+of+identified+origin+to+be+studied+in+long-term+cultures.">Fluorescent carbocyanine dyes allow living neurons of identified origin to be studied in long-term cultures.</a> J Cell Biol. 103 (1), 171-187 (1986).</li><li>Rahmati, M., Mobasheri, A., Mozafari, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Inflammatory+mediators+in+osteoarthritis:+A+critical+review+of+the+state-of-the-art,+current+prospects,+and+future+challenges.">Inflammatory mediators in osteoarthritis: A critical review of the state-of-the-art, current prospects, and future challenges.</a> Bone. 85, 81-90 (2016).</li><li>Detante, 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=Intravenous+administration+of+99mTc-HMPAO-labeled+human+mesenchymal+stem+cells+after+stroke:+in+vivo+imaging+and+biodistribution.">Intravenous administration of 99mTc-HMPAO-labeled human mesenchymal stem cells after stroke: in vivo imaging and biodistribution.</a> Cell Transplant. 18 (12), 1369-1379 (2009).</li><li>Hu, S. 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=In+vivo+magnetic+resonance+imaging+tracking+of+SPIO-labeled+human+umbilical+cord+mesenchymal+stem+cells.">In vivo magnetic resonance imaging tracking of SPIO-labeled human umbilical cord mesenchymal stem cells.</a> J Cell Biochem. 113 (3), 1005-1012 (2012).</li><li>Xia, Q., 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=Intra-articular+transplantation+of+atsttrin-transduced+mesenchymal+stem+cells+ameliorate+osteoarthritis+development.">Intra-articular transplantation of atsttrin-transduced mesenchymal stem cells ameliorate osteoarthritis development.</a> Stem Cells Transl Med. 4 (5), 523-531 (2015).</li><li>Jasmin, , 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=Optimized+labeling+of+bone+marrow+mesenchymal+cells+with+superparamagnetic+iron+oxide+nanoparticles+and+in+vivo+visualization+by+magnetic+resonance+imaging.">Optimized labeling of bone marrow mesenchymal cells with superparamagnetic iron oxide nanoparticles and in vivo visualization by magnetic resonance imaging.</a> J Nanobiotechnology. 9, 4 (2011).</li><li>Lehmann, T. P., 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=Coculture+of+human+nucleus+pulposus+cells+with+multipotent+mesenchymal+stromal+cells+from+human+bone+marrow+reveals+formation+of+tunnelling+nanotubes.">Coculture of human nucleus pulposus cells with multipotent mesenchymal stromal cells from human bone marrow reveals formation of tunnelling nanotubes.</a> Mol Med Rep. 9 (2), 574-582 (2014).</li><li>Wang, W., 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+adipose-derived+mesenchymal+progenitor+cells+engraft+into+rabbit+articular+cartilage.">Human adipose-derived mesenchymal progenitor cells engraft into rabbit articular cartilage.</a> Int J Mol Sci. 16 (6), 12076-12091 (2015).</li></ol>

Norme di sicurezza e studi di biodistribuzione di terapia della cellula formativa sono urgentemente necessari prima che possiamo portare il trattamento rigenerativo delle cellule staminali per KOA dalla panchina al capezzale. Tuttavia, l'ambiente patologico della malattia svolge un ruolo importante nella persistenza e biodistribuzione di trapiantati haMSCs10. Recentemente, il nostro gruppo ha dimostrato che iniezione intrarticolare di haMSCs più persistenti in un ambiente di KOA patologico quanto...

Osteoartrite del ginocchio (KOA) è un disordine degenerante derivanti dalla perdita di cartilagine articolare e l'infiammazione progressiva, che è diventata una malattia cronica importante negli anziani intorno al mondo1. Tuttavia, le attuali terapie con farmaci anti-infiammatori, integratori fisici e procedure chirurgiche possono fornire solo un sollievo temporaneo per dolore sintomatico2.
Adiposo-derivate cellule staminali mesenchimali umane (haMSCs) sono diventati un rimedio rigenerativo promettente per l'osteoartrite del ginocchio, a causa della loro differenziazione multipotenti potenziale per la rigenerazione della cartilagine e immunomodulatori proprietà3, 4. Rispetto ai percorsi farmacologici per studiare i meccanismi di azione in vivo, tracking live haMSCs in modelli animali di piccole dimensioni KOA è attualmente istruttivo per stabilire la spiegazione razionale per e la fattibilità della terapia haMSC prima applicazione clinica. Per i test preclinici, meniscectomia mediale (MM) destabilizza il carico meccanico del giunto per indurre KOA in ratti, che fornisce un modello relativamente fattibile con riproducibilità costante5. L'insorgenza di KOA indotta da MM è antecedente il transection del legamento crociato anteriore da solo o combinato con parziale meniscectomia mediale6. Pertanto, le interazioni a lungo termine tra haMSCs iniettato con il microambiente patologico di KOA sono spesso valutate in ratti indotti da MM7,8.
Anche se l'efficacia terapeutica di haMSCs è stato ampiamente riferita, pertinenti conoscenze sulla persistenza in vivo di haMSCs impiantato tramite iniezione intra-articolare (IA) è scarsa9,10. Quindi, sono stati sviluppati vari metodi di etichettatura cellulare, tra cui immunohistology11, luciferasi12, trasfezione13 proteina fluorescente verde, ossido di ferro di etichettatura per imaging a risonanza magnetica (MRI)14 e numerose cellule fluorescenti coloranti8,15,16. Confrontato con analisi di istologia laborioso, in vivo imaging non-invasivo si avvale di dispositivi ottici per rilevare la distribuzione in tempo reale e dinamica delle cellule identificate con segnali fluorescenti10,17. Per l'imaging funzionale di cellule vive, citocompatibili Contrassegno fluorescente è una tecnica di sofisticato monitoraggio radioattivo senza rivelare attività cellulari dopo trapianto di cellule staminali18. Inoltre, multicolore tinture fluorescenti lipofili possiedono vantaggi rispetto ai coloranti idrofiliche ammino-reattivi o proteine fluorescenti, compresi i loro permeabilità cellulare migliorata e rafforzata fluorescenza quantistica rendimenti19.
Così, i protocolli inclusi qui utilizzano un rosso laser per eccitare le cellule identificate con lipofilico carbocyanines fatto (DilC18(5)), che è un da' fluorescente Dil (dialkylcarbocyanines) analogico20. Gli spettri rosso-spostato di eccitazione e di emissione di evita interferenze autofluorescent e permette deep tissue imaging per un lungo periodo di tempo in animali vivi8. Questo metodo di rilevamento delle cellule in vivo etichettato con fatto è valido per il monitoraggio cellule staminali trapiantate, come haMSCs, in modelli animali, che è essenziale per capire e migliorare l'attuale terapia rigenerativa con cellule staminali.

<table>
	<tbody>
		<tr>
			<td>Matrx VMR animal anesthesia system</td>
			<td>Midmark</td>
			<td>VIP3000</td>
			<td></td>
		</tr>
		<tr>
			<td>4-0 suture</td>
			<td>Shanghai Jinhuan</td>
			<td>KC439</td>
			<td></td>
		</tr>
		<tr>
			<td>Razor</td>
			<td>Pritech</td>
			<td>LD-9987</td>
			<td></td>
		</tr>
		<tr>
			<td>Gentamicin</td>
			<td>Zhejiang Jindakang Animal Health Product Co., Ltd.</td>
			<td>None</td>
			<td></td>
		</tr>
		<tr>
			<td>0.9% Sodium chloride solution</td>
			<td>Hunan Kelun Pharmaceutical Co., Ltd.</td>
			<td>H43020455</td>
			<td></td>
		</tr>
		<tr>
			<td>Penicillin</td>
			<td>Shanghai Kangfu chemical pharmaceutical Co., Ltd.</td>
			<td>None</td>
			<td></td>
		</tr>
		<tr>
			<td>Buprenorphine</td>
			<td>Tianjin Pharmaceutical Research Institute Pharmaceutical Co., Ltd.</td>
			<td>None</td>
			<td></td>
		</tr>
		<tr>
			<td>Paraformaldehyde</td>
			<td>Sigma-Aldrich</td>
			<td>16005</td>
			<td>Dilute to final concentration of 10% in PBS</td>
		</tr>
		<tr>
			<td>EDTA</td>
			<td>Sigma-Aldrich</td>
			<td>E9884</td>
			<td>Dilute to final concentration of 20% in PBS</td>
		</tr>
		<tr>
			<td>0.1% Hematoxylin Solution, Mayer&#8217;s</td>
			<td>Sigma-Aldrich</td>
			<td>MHS16</td>
			<td></td>
		</tr>
		<tr>
			<td>0.5% Eosin Y solution, alcoholic</td>
			<td>Sigma-Aldrich</td>
			<td>HT110116</td>
			<td></td>
		</tr>
		<tr>
			<td>Safranin O</td>
			<td>Sigma-Aldrich</td>
			<td>S8884</td>
			<td></td>
		</tr>
		<tr>
			<td>Fast Green</td>
			<td>Sigma-Aldrich</td>
			<td>F7258</td>
			<td></td>
		</tr>
		<tr>
			<td>Shandon Excelsior ESTM Tissue Processor</td>
			<td>Thermo Fisher</td>
			<td>A78400006</td>
			<td></td>
		</tr>
		<tr>
			<td>Shandon Histocentre&#8482; 3 Tissue Embedding Center</td>
			<td>Thermo Fisher</td>
			<td>B64100010</td>
			<td></td>
		</tr>
		<tr>
			<td>Fully Automated Rotary Microtome</td>
			<td>Leica</td>
			<td>RM2255</td>
			<td></td>
		</tr>
		<tr>
			<td>DiD</td>
			<td>Molecular Probes, Life 
			Technologies</td>
			<td>V-22887</td>
			<td></td>
		</tr>
		<tr>
			<td>D-MEM High Glucose</td>
			<td>Sigma-Aldrich</td>
			<td>D5648</td>
			<td></td>
		</tr>
		<tr>
			<td>PBS</td>
			<td>GIBCO, Life Technologies</td>
			<td>14190-144</td>
			<td></td>
		</tr>
		<tr>
			<td>0.25% Trypsin-EDTA</td>
			<td>Invitrogen</td>
			<td>25200-114</td>
			<td></td>
		</tr>
		<tr>
			<td>10 cm Petri Dish</td>
			<td>Corning</td>
			<td>V118877</td>
			<td></td>
		</tr>
		<tr>
			<td>Centrifuge</td>
			<td>Beckman</td>
			<td>Optima MAX-TL</td>
			<td></td>
		</tr>
		<tr>
			<td>Fluorescent microscope</td>
			<td>Olympus</td>
			<td>BX53</td>
			<td></td>
		</tr>
		<tr>
			<td>0.4% Trypan Blue solution</td>
			<td>Sigma-Aldrich</td>
			<td>93595</td>
			<td></td>
		</tr>
		<tr>
			<td>Titetamme</td>
			<td>Virbac (Zoletil 50)</td>
			<td>1000000188</td>
			<td></td>
		</tr>
		<tr>
			<td>Zolazepam</td>
			<td>Virbac (Zoletil 50)</td>
			<td>1000000188</td>
			<td></td>
		</tr>
		<tr>
			<td>Sterile hyposermic syringe for single use 26G</td>
			<td>Shanghai Misawa Medical Industry</td>
			<td>None</td>
			<td></td>
		</tr>
		<tr>
			<td>IVIS Spectrum In Vivo Imaging System</td>
			<td>PerkinElmer</td>
			<td>124262</td>
			<td></td>
		</tr>
		<tr>
			<td>Living Imaging 4.0 software</td>
			<td>PerkinElmer</td>
			<td>None</td>
			<td></td>
		</tr>
	</tbody>
</table>

in vivo tracking of human adipose-derived mesenchymal stem cells in a rat knee osteoarthritis model with fluorescent lipophilic membrane dye

Per supportare l'applicazione clinica della terapia umana adiposo-derivate cellule staminali mesenchimali (haMSC) per l'osteoartrite del ginocchio (KOA), abbiamo esaminato l'efficacia di persistenza delle cellule e biodistribuzione di haMSCs nei modelli animali. Abbiamo dimostrato un metodo per assegnare un'etichetta della membrana cellulare di haMSCs con colorante fluorescente lipofilico. Successivamente, iniezione intra-articolare delle cellule con etichettate in ratti con KOA chirurgicamente indotta è stata monitorata in modo dinamico da un in vivo imaging system. Abbiamo impiegato il lipofilico carbocyanines fatto (DilC18 (5)), un analogo fluorescente da' di Dil (dialkylcarbocyanines), che utilizzato un laser rosso per evitare l'eccitazione del autofluorescence verde naturale dai tessuti circostanti. Inoltre, lo spettro di emissione rosso-spostato di permesso deep tissue imaging negli animali vivi e la procedura di etichettatura non causato nessun effetti citotossici o danno funzionale a haMSCs. Questo approccio ha dimostrato di essere un metodo di verifica efficiente per haMSCs in un modello di ratto KOA. L'applicazione di questo metodo potrebbe essere utilizzato anche per determinare la via di somministrazione ottimale ed il dosaggio delle MSC da altre fonti in studi pre-clinici.

Al fine di indurre modello KOA, MM è stato effettuato nel giunto di ginocchio destro di ratti SD (Figura 3). Otto settimane dopo la chirurgia, i ratti sono stati sacrificati e le sezioni di serie di giunti di ginocchio sono state valutate con entrambi H &#38; E e Safranina O/Fast Green macchiatura (Figura 4). Per H &#38; E colorazione, la superficie della cartilagine articolare ha esibito confini più ruvide al ginocchio chirurg...

Watch this Scientific Journal Video about In Vivo Tracking of Human Adipose-derived Mesenchymal Stem Cells in a Rat Knee Osteoarthritis Model with Fluorescent Lipophilic Membrane Dye at JoVE.com

In Vivo Tracking of Human Adipose-derived Mesenchymal Stem Cells in a Rat Knee Osteoarthritis Model with Fluorescent Lipophilic Membrane Dye

In Vivo Rilevamento di umani cellule staminali mesenchimali adiposo-derivate in un modello di osteoartrite del ginocchio di ratto con colorante fluorescente lipofilico membrana

Questo protocollo descrive un modo efficiente per monitorare la persistenza delle cellule e la biodistribuzione di adiposo-derivate cellule staminali mesenchimali umane (haMSCs) di fluorescenza da' etichettatura in un modello di osteoartrite (KOA) del ginocchio di ratto tramite iniezione intra-articolare (IA).

In order to support the clinical application of human adipose-derived mesenchymal stem cell (haMSC) therapy for knee osteoarthritis (KOA), we examined the ...

Research

JoVE Journal

Developmental Biology

In Vivo Tracking of Human Adipose-derived Mesenchymal Stem Cells in a Rat Knee Osteoarthritis Model with Fluorescent Lipophilic Membrane Dye

Isolation and Enrichment of Human Adipose-derived Stromal Cells for Enhanced Osteogenesis

Isolamento e arricchimento di Human derivate da tessuto adiposo cellule stromali di Osteogenesi avanzata

Bone marrow-derived mesenchymal stromal cells (BM-MSCs) are considered the gold standard for stem cell-based tissue engineering applications. However, the ...

Ricerca

Biologia dello sviluppo

Analysis of Zebrafish Larvae Skeletal Muscle Integrity with Evans Blue Dye

Analisi delle larve Zebrafish muscolo scheletrico Integrità con Blu di Evans Dye

The zebrafish model is an emerging system for the study of neuromuscular disorders.  In the study of neuromuscular diseases, the integrity of the muscle ...

Isolation and Differentiation of Adipose-Derived Stem Cells from Porcine Subcutaneous Adipose Tissues

Isolamento e differenziazione delle cellule staminali derivate da tessuto adiposo sottocutaneo da Suini tessuti adiposi

Obesity is an unconstrained worldwide epidemic. Unraveling molecular controls in adipose tissue development holds promise to treat obesity or diabetes. ...

Immunomagnetic Separation of Fat Depot-specific Sca1high Adipose-derived Stem Cells (ASCs)

Immunomagnetic Separation of Fat Depot-specific Sca1high Adipose-derived Stem Cells ASCs

Separazione immunomagnetica di Sca1 Fat Depot-specifica<sup&gt; alta</sup&gt; derivate da tessuto adiposo cellule staminali (ASC)

The isolation of adipose-derived stem cells (ASCs) is an important method in the field of adipose tissue biology, adipogenesis, and extracellular matrix ...

Isolation and Expansion of Mesenchymal Stem/Stromal Cells Derived from Human Placenta Tissue

Isolamento e l&#39;espansione delle staminali mesenchimali stromali derivate / cellule da placenta umana Tissue

Mesenchymal stem/stromal cells (MSC) are promising candidates for use in cell-based therapies. In most cases, therapeutic response appears to be cell-dose ...

Chondrogenic Differentiation Induction of Adipose-derived Stem Cells by Centrifugal Gravity

Condrogenico Differenziazione induzione di cellule staminali derivate da tessuto adiposo per gravità centrifuga

Impaired cartilage cannot heal naturally. Currently, the most advanced therapy for defects in cartilage is the transplantation of chondrocytes ...

Rapid Isolation of BMPR-IB+ Adipose-Derived Stromal Cells for Use in a Calvarial Defect Healing Model

Isolamento rapido di BMPR-IB + derivate da tessuto adiposo cellule stromali per l&#39;uso in un cranica difetto di guarigione Modello

Invasive cancers, major injuries, and infection can cause bone defects that are too large to be reconstructed with preexisting bone from the patient's own ...

Directed Differentiation of Primitive and Definitive Hematopoietic Progenitors from Human Pluripotent Stem Cells

Regia di differenziazione dei progenitori ematopoietici primitivi e definitivo da cellule staminali pluripotenti umane

One of the major goals for regenerative medicine is the generation and maintenance of hematopoietic stem cells (HSCs) derived from human pluripotent stem ...

In Vitro Differentiation of Human Mesenchymal Stem Cells into Functional Cardiomyocyte-like Cells

In Vitro Differentiation of Human Mesenchymal Stem Cells into Functional Cardiomyocyte-like Cells

In Vitro Differenziazione delle cellule staminali mesenchimali umane in funzionale del Cardiomyocyte-come le cellule

Myocardial infarction and the subsequent ischemic cascade result in the extensive loss of cardiomyocytes, leading to congestive heart failure, the leading ...

Culturing of Retinal Pigment Epithelial Cells on an Ex Vivo Model of Aged Human Bruch's Membrane

Culturing of Retinal Pigment Epithelial Cells on an Ex Vivo Model of Aged Human Bruch's Membrane

Coltura delle cellule epiteliali del pigmento retinico su un modello Ex Vivo della membrana di Bruch umano invecchiato

Aside from vitamins and antioxidants recommended by the Age-Related Eye Disease Study, there is no effective therapy for &#34;dry,&#34;&#160;or atrophic ...