Name: surgical retrieval, isolation and in vitro expansion of human anterior cruciate ligament-derived cells for tissue engineering applications
Uploaded: 2014-04-30T15:00:00
Description: Watch this Scientific Journal Video about Surgical Retrieval, Isolation and In vitro Expansion of Human Anterior Cruciate Ligament-derived Cells for Tissue Engineering Applications at JoVE.com

Gli autori desiderano ringraziare l&#39;avvio del fondo e il reparto di chirurgia assegno di ricerca presso la Southern Illinois University, School of Medicine; e la concessione Memorial Medical Foundation.

1. Recupero chirurgico Nota: L&#39;approvazione IRB è stata ottenuta per raccogliere il moncone del LCA durante l&#39;intervento chirurgico di ricostruzione del LCA. Esenzione IRB è stato dato come il moncone ACL utilizzato erano generalmente scartati come rifiuti chirurgico. 20 pazienti sono stati usati per raccogliere il moncone ACL. <ol><li> Somministrare anestesia generale e antibiotici pre-operatorie come da protocollo dell&#39;ente per il paziente. </li><li> Applicare il laccio emo...

<ol>
	<li>Johnson, R. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+anterior+cruciate+ligament:+A+dilemma+in+sports+medicine.">The anterior cruciate ligament: A dilemma in sports medicine.</a> Int J Sports Med. 3, 71-79 (1982).</li><li>Owings, M. F., Kozak, L. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ambulatory+and+inpatient+procedures+in+the+United+States,+1996.">Ambulatory and inpatient procedures in the United States, 1996.</a> Vital Health Stats. 13, 1-119 (1998).</li><li>Frank, C. B., Jackson, D. 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A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Isolated+tears+of+the+anterior+cruciate+ligament:+over+30+year+follow-up+of+patients+treated+with+arthrotomy+and+primary+repair.">Isolated tears of the anterior cruciate ligament: over 30 year follow-up of patients treated with arthrotomy and primary repair.</a> Am J Sports Med. 37 (1), 65-71 (2009).</li><li>Liljedahl, S. 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H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+natural+history+of+conservatively+treated+partial+anterior+cruciate+ligament+tears.">The natural history of conservatively treated partial anterior cruciate ligament tears.</a> Am J Sports Med. 17 (2), 221-225 (1989).</li><li>Noyes, F. R., Mooar, L. A., Moorman, C. T., McGinnis, H. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Partial+tears+of+the+anterior+cruciate+ligament.+Progression+to+complete+ligament+deficiency.">Partial tears of the anterior cruciate ligament. Progression to complete ligament deficiency.</a> J Bone Joint Surg Br. 71 (5), 825-833 (1989).</li><li>Bak, K., Scavenius, M., Hansen, S., Norring, K., Jensen, K. H., Jorgensen, U. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Isolated+partial+rupture+of+the+anterior+cruciate+ligament.+Long+term+followup+of+56+cases.">Isolated partial rupture of the anterior cruciate ligament. Long term followup of 56 cases.</a> Knee Surg Sports Traumatol Arthrosc. 5 (2), 66-71 (1997).</li><li>Fritschy, D., Panoussopoulos, A., Wallensten, R., Peter, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Can+we+predict+the+outcome+of+a+partial+rupture+of+the+anterior+cruciate+ligament?+A+prospective+study+of+43+cases.">Can we predict the outcome of a partial rupture of the anterior cruciate ligament? A prospective study of 43 cases.</a> Knee Surg Sports Traumatol Arthrosc. 5 (1), 2-5 (1997).</li><li>Sommerlath, K., Odensten, M., Lysholm, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+late+course+of+acute+partial+anterior+cruciate+ligament+tears.+A+nine+to+15+year+follow-up+evaluation.">The late course of acute partial anterior cruciate ligament tears. A nine to 15 year follow-up evaluation.</a> Clin Orthop. , 281-2152 (1992).</li><li>Barrack, R. L., Buckley, S. L., Bruckner, J. D., Kneisl, J. S., Alexander, A. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Partial+versus+complete+acute+anterior+cruciate+ligament+tears:+the+results+of+nonoperative+treatment.">Partial versus complete acute anterior cruciate ligament tears: the results of nonoperative treatment.</a> J Bone Joint Surg Br. 72 (4), 622-624 (1990).</li><li>Murray, M. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Current+status+and+potential+of+primary+ACL+repair.">Current status and potential of primary ACL repair.</a> Clin Sports Med. 28 (1), 51-61 (2009).</li><li>Gupta, 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=Single+walled+carbon+nanotube+composites+for+bone+tissue+engineering.">Single walled carbon nanotube composites for bone tissue engineering.</a> J Orthop Res. 9, 1374-1381 (2013).</li><li>Fruensgaard, S., Johannsen, H. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Incomplete+ruptures+of+the+anterior+cruciate+ligament.">Incomplete ruptures of the anterior cruciate ligament.</a> J Bone Joint Surg Br. 71, 526-530 (1989).</li><li>Sandberg, R., Balkfors, B., Nilsson, B., Westlin, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Operative+versus+non-operative+treatment+of+recent+injuries+to+the+ligaments+of+the+knee.+A+prospective+randomized+study.">Operative versus non-operative treatment of recent injuries to the ligaments of the knee. A prospective randomized study.</a> J Bone Joint Surg Am. 69, 1120-1126 (1987).</li><li>Lamar, D. S., Bartolozzi, A. R., Freedman, K. B., Nagda, S. H., Fawcett, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Thermal+modification+of+partial+tears+of+the+anterior+cruciate+ligament.">Thermal modification of partial tears of the anterior cruciate ligament.</a> Arthroscopy. 21 (7), 809-814 (2005).</li><li>Indelli, P. F., Dillingham, M. F., Fanton, G. S., Schurman, D. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Monopolar+thermal+treatment+of+symptomatic+anterior+cruciate+ligament+instability.">Monopolar thermal treatment of symptomatic anterior cruciate ligament instability.</a> Clin Orthop. 407, 138-147 (2003).</li><li>Smith, D. B., Carter, T. R., Johnson, D. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=High+failure+rate+for+electrothermal+shrinkage+of+the+lax+anterior+cruciate+ligament:+a+multicenter+follow-up+past+2+years.">High failure rate for electrothermal shrinkage of the lax anterior cruciate ligament: a multicenter follow-up past 2 years.</a> Arthroscopy. 24 (6), 637-641 (2008).</li><li>Buda, R., Ferruzzi, A., Vannini, F., Zambelli, L., Di Caprio, F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Augmentation+technique+with+semitendinosus+and+gracilis+tendons+in+chronic+partial+lesions+of+the+ACL:+clinical+and+arthrometric+analysis.">Augmentation technique with semitendinosus and gracilis tendons in chronic partial lesions of the ACL: clinical and arthrometric analysis.</a> Knee Surg Sports Traumatol Arthrosc. 14 (11), 1101-1107 (2006).</li><li>Sekiya, J. K., Golladay, G. J., Wojtys, E. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Autodigestion+of+a+hamstring+anterior+cruciate+ligament+autograft+following+thermal+shrinkage:+a+case+report+and+sentinel+of+concern.">Autodigestion of a hamstring anterior cruciate ligament autograft following thermal shrinkage: a case report and sentinel of concern.</a> J Bone Joint Surg Am. 82 (10), 1454-1457 (2000).</li><li>Farquharson-Roberts, M. A., Osborne, A. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Partial+rupture+of+the+anterior+cruciate+ligament+of+the+knee.">Partial rupture of the anterior cruciate ligament of the knee.</a> J Bone Joint Surg Br. 65, 32-34 (1983).</li><li>Rue, J. P., Ghodadra, N., Bach, B. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Femoral+tunnel+placement+in+single-bundle+anterior+cruciate+ligament+reconstruction:+a+cadaveric+study+relating+transtibial+lateralized+femoral+tunnel+position+to+the+anteromedial+and+posterolateral+bundle+femoral+origins+of+the+anterior+cruciate+ligament.">Femoral tunnel placement in single-bundle anterior cruciate ligament reconstruction: a cadaveric study relating transtibial lateralized femoral tunnel position to the anteromedial and posterolateral bundle femoral origins of the anterior cruciate ligament.</a> Am J Sports Med. 36, 73-79 (2008).</li><li>Carey, J. L., Dunn, W. R., Dahm, D. L., Zege, S. L., Spindler, K. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+systematic+review+of+anterior+cruciate+ligament+reconstruction+with+autograft+compared+with+allograft.">A systematic review of anterior cruciate ligament reconstruction with autograft compared with allograft.</a> J Bone Joint Surg. 91, 2242-2450 (2009).</li><li>Murray, M. M., Martin, S. D., Martin, T. L., Spector, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Histological+changes+in+the+human+anterior+cruciate+ligament+after+rupture.">Histological changes in the human anterior cruciate ligament after rupture.</a> J Bone Joint Surg Am. 82, 1387-1397 (2000).</li><li>Andrish, J., Holmes, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effects+of+synovial+fluid+on+fibroblasts+in+tissue+culture.">Effects of synovial fluid on fibroblasts in tissue culture.</a> Clin Orthop Relat Res. (138), 279-283 (1979).</li><li>Murray, M. M., Spindler, K. P., Ballard, 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=Enhanced+histologic+repair+in+a+central+wound+in+the+anterior+cruciate+ligamentwith+a+collagen-platelet-rich+plasma+scaffold.">Enhanced histologic repair in a central wound in the anterior cruciate ligamentwith a collagen-platelet-rich plasma scaffold.</a> J Orthop Res. 25, 1007-1017 (2007).</li><li>Carter, T. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Anterior+cruciate+ligament+thermal+shrinkage.">Anterior cruciate ligament thermal shrinkage.</a> Clin Sports Med. 21, 693-700 (2002).</li><li>Perry, J. J., Higgins, L. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Anterior+and+posterior+cruciate+ligament+rupture+after+thermal+treatment.">Anterior and posterior cruciate ligament rupture after thermal treatment.</a> Arthroscopy. 16, 732-736 (2000).</li><li>Cheng, M. T., Yang, H. W., Chen, T. H., Lee, O. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Isolation+and+characterization+of+multipotent+stem+cells+from+human+cruciate+ligaments.">Isolation and characterization of multipotent stem cells from human cruciate ligaments.</a> Cell Prolif. 42 (4), 448-460 (2009).</li><li>Matsumoto, T., 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=Isolation+and+characterization+of+human+anterior+cruciate+ligament-derived+vascular+stem+cells.">Isolation and characterization of human anterior cruciate ligament-derived vascular stem cells.</a> Stem Cells Dev. 21 (6), 859-872 (2012).</li></ol>

L&#39;obiettivo primario di questo studio impalcatura hACL/2D stato quello di utilizzare le cellule ottenute in una patch per aumentare la riparazione primaria di lacrime ACL parziali. Gestione incruento di lacrime ACL parziali possono includere un breve periodo di immobilizzazione, tonificante, un programma di riabilitazione progressiva e regolari valutazioni di follow-up 13,16,17. Tuttavia, molti studi dimostrano che il trattamento conservativo negli atleti è stata associata con scarsi risultati e fallimen...

Il legamento crociato anteriore (LCA) è un legamento intra-articolare comunemente feriti del ginocchio. Circa 200.000 (ACL) lesioni sono segnalati ogni anno negli Stati Uniti. Oltre il 75% dei pazienti con lesioni ACL optare per la chirurgia ricostruttiva ortopedica 1,2,3,4. L&#39;intervento chirurgico è spesso indicato a causa di un potenziale di guarigione per sé mediocre 3. Ricostruzione del LCA in genere viene eseguita per mezzo di un innesto di osso autologo o allogenico tendine. Autologo e allogenico rappresentano il gold standard per la ricostruzione come si vantano tassi di successo elevati, e la riparazione sutura primaria, l&#39;altra opzione di trattamento, ha mostrato tassi di fallimento fino al 94% 5,6,7. Rotture parziali della ACL rappresentano il 10% al 28% di tutte le lacrime ACL 8. In uno studio prospettico, Noyes et al. Stima che il 50% dei pazienti con rotture parziali che interessano più della metà del LCA progredito per completare ACL insufficienza dopo la non-trattamento chirurgico 9. Altri studi riportano persistente instabilità e la funzione diminuiti con meno del 30% dei pazienti in grado di tornare alle loro pre-infortunio livello di attività 9,10,11,12,13. Le opzioni di trattamento sono limitate e comprendono le modalità conservative, ritiro termico di rimanere ACL, o ricostruzione del LCA. Recentemente, c&#39;è stato un crescente interesse per la riparazione primaria aumentata. Queste tecniche utilizzano farmaci biologici per migliorare la riparazione di sutura primaria 14. Recenti ricerche hanno tentato di raccogliere mesenchimali come HACL derivato cellule staminali per aggirare le limitazioni innesto, 31,32 ma la validità e l&#39;efficacia di queste cellule è ancora sconosciuta. La fonte cellulare ideale per applicazioni di ingegneria tissutale sembra essere non mesechymal HACL derivato cellule di fibroblasti. La ricerca attuale si concentra sull&#39;identificazione un materiale di matrice adatto e fonte di cellule per il scaffold ingegnerizzati. Si tratta di una procedura standard per un ACL strappato da scartare come surifiuti rgical durante l&#39;intervento chirurgico di ricostruzione, tuttavia, questo legamento danneggiato può essere una fonte di qualità per l&#39;acquisizione di cellule necessarie per sviluppare e valorizzare un tessuto ideale ingegnerizzato sostituzione ACL. Il nostro laboratorio ha sviluppato un protocollo per l&#39;espansione in vitro di queste cellule derivate HACL raccolte. Utilizzando una matrice 2D di ingegneria infuso con celle HACL derivate, abbiamo progettato una patch che potrebbe potenzialmente aumentare la riparazione ACL parziale e rafforzare legamenti strappati.

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	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Name of Material/ Equipment</td>
			<td style="width:139px;">Company</td>
			<td style="width:143px;">Catalog Number</td>
			<td style="width:507px;">Comments/Description</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Petri-dish</td>
			<td style="width:139px;">Fisher Scientific</td>
			<td style="width:143px;">08-757-103C</td>
			<td></td>
		</tr>
		<tr height="23">
			<td height="23" style="height:23px;width:216px;">Phosphate Buffered Saline (PBS)</td>
			<td style="width:139px;">Fisher Scientific</td>
			<td style="width:143px;">BP3994</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;width:216px;">Collagenase</td>
			<td style="width:139px;">Gibco</td>
			<td style="width:143px;">17018-029</td>
			<td>Store at 40C</td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;width:216px;">DMEM/F-12</td>
			<td style="width:139px;">Cellgro</td>
			<td style="width:143px;">10-092-CV</td>
			<td>Store at 40C. Warm in 370C water bath before use.</td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;width:216px;">Fetal Bovine Serum (FBS)</td>
			<td style="width:139px;">Gibco</td>
			<td style="width:143px;">10082</td>
			<td>Store at -800C</td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;width:216px;">Penicillin/Streptomycin</td>
			<td style="width:139px;">Lonza</td>
			<td style="width:143px;">17-602E</td>
			<td>Store at 40C</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Centrifuge Tubes- 15 ml</td>
			<td style="width:139px;">Corning</td>
			<td style="width:143px;">430790</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">T-25 flasks</td>
			<td style="width:139px;">BD Falcon</td>
			<td style="width:143px;">3013</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;width:216px;">Trypsin-Versene mixture</td>
			<td style="width:139px;">Lonza</td>
			<td style="width:143px;">17-161E</td>
			<td>Store at 40C. Warm in 370C water bath before use.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">DMSO</td>
			<td style="width:139px;">Fisher Scientific</td>
			<td style="width:143px;">BP231-100</td>
			<td>Combustible liquid. Can cause skin, eye and respiratory tract irritation.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Cryogenic vials</td>
			<td style="width:139px;">Corning</td>
			<td style="width:143px;">430489</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;width:216px;">PLAGA</td>
			<td style="width:139px;">Purac Biomaterials</td>
			<td style="width:143px;">Purasorb PLG8523</td>
			<td>Store at -800C</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">TCPS disks</td>
			<td style="width:139px;">Fisher Scientific</td>
			<td style="width:143px;">12-545-82</td>
			<td></td>
		</tr>
		<tr height="23">
			<td height="23" style="height:23px;width:216px;">Dichloromethane</td>
			<td style="width:139px;">Fisher Scientific</td>
			<td style="width:143px;">AC36423-0010</td>
			<td>Possible cancer hazard. Store in a dry, cool place.</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:216px;">Bytac paper</td>
			<td style="width:139px;">Saint gobin performance plastics</td>
			<td style="width:143px;">1420652</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Scintillation vial</td>
			<td style="width:139px;">Fisher Scientific</td>
			<td>03-339-21G</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;width:216px;">Bovine Serum Albumin (BSA)</td>
			<td style="width:139px;">Sigma Aldrich</td>
			<td style="width:143px;">A7906</td>
			<td>Store at 40C</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Tween</td>
			<td style="width:139px;">Fisher Scientific</td>
			<td style="width:143px;">BP337-500</td>
			<td></td>
		</tr>
		<tr height="46">
			<td height="46" style="height:46px;width:216px;">mouse Anti-&#946;-actin antibody (10 Ab)</td>
			<td style="width:139px;">Sigma Aldrich</td>
			<td style="width:143px;">A5441</td>
			<td>Store at -200C</td>
		</tr>
		<tr height="46">
			<td height="46" style="height:46px;width:216px;">goat-anti-mouse antibody (20 Ab)</td>
			<td style="width:139px;">Cell Signaling</td>
			<td style="width:143px;">4408</td>
			<td>Store at -200C</td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;width:216px;">Hoechst dye</td>
			<td style="width:139px;">Sigma Aldrich</td>
			<td style="width:143px;">14530</td>
			<td>Store at -200C</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Glycerol</td>
			<td style="width:139px;">Fisher Scientific</td>
			<td style="width:143px;">BP229-1</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Glutaraldehyde</td>
			<td style="width:139px;">Fisher Scientific</td>
			<td style="width:143px;">BP2547-1</td>
			<td>Toxic by inhalation and if swallowed. Causes burns by all exposure routes.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Hexamethyldisilazane</td>
			<td style="width:139px;">Fisher Scientific</td>
			<td style="width:143px;">AC43085-1000</td>
			<td>Flammable liquid and vapor. Causes burns by all exposure routes.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Sterile Scissors</td>
			<td style="width:139px;">McKesson</td>
			<td style="width:143px;">25-716</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Centrifuge</td>
			<td style="width:139px;">Eppendorf</td>
			<td style="width:143px;">5804R</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Light Microscope</td>
			<td style="width:139px;">Olympus</td>
			<td style="width:143px;">CK40</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Water Bath</td>
			<td style="width:139px;">Thermo scientific</td>
			<td style="width:143px;">2845</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Vortex</td>
			<td style="width:139px;">Labnet&#160;</td>
			<td style="width:143px;">VX-200</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Glass Petri plates</td>
			<td style="width:139px;">fisher Scientific</td>
			<td style="width:143px;">S31473</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Acu-Punch</td>
			<td style="width:139px;">Acuderm Inc.</td>
			<td style="width:143px;">P1225</td>
			<td>Acu-Punch was used to cut 12mm disks</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Cacodylate buffer</td>
			<td style="width:139px;">Sigma Aldrich</td>
			<td style="width:143px;">97068</td>
			<td>Flammable liquid, carcinogen and irritant.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Osmium tetraoxide</td>
			<td style="width:139px;">Sigma Aldrich</td>
			<td style="width:143px;">201030</td>
			<td>Highly toxic</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Triton X-100</td>
			<td style="width:139px;">Sigma Aldrich</td>
			<td style="width:143px;">T8787</td>
			<td>Harmful if swallowed</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Ethanol</td>
			<td style="width:139px;">Decon Labs</td>
			<td style="width:143px;">2705</td>
			<td>Keep away from heat, sparks, flame and other form of ignition.</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">General/regional Anesthesia</td>
			<td style="width:139px;">Amphastar pharmaceuticals</td>
			<td style="width:143px;"></td>
			<td>1% Lidocaine, 0.25% Bupivacaine,Anesthetic agents for induction and maintenance</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Antibiotics</td>
			<td style="width:139px;">Hospira</td>
			<td>0409-0805-01</td>
			<td>Ancef 1g i.v.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Arthroscopy trocar</td>
			<td style="width:139px;">Smith and Nephew</td>
			<td style="width:143px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Arthroscopy Camera</td>
			<td style="width:139px;">Smith and Nephew</td>
			<td style="width:143px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Arthroscopic grasper and bitter</td>
			<td style="width:139px;">Arthrex&#160;</td>
			<td style="width:143px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">4.5mm shaver</td>
			<td style="width:139px;">Arthrex&#160;</td>
			<td style="width:143px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Interference Screws</td>
			<td style="width:139px;">Arthrex&#160;</td>
			<td style="width:143px;"></td>
			<td>stainless steel screws</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Sputter Coater</td>
			<td style="width:139px;">Polaron</td>
			<td style="width:143px;">E5400</td>
			<td></td>
		</tr>
	</tbody>
</table>

surgical retrieval, isolation and in vitro expansion of human anterior cruciate ligament-derived cells for tissue engineering applications

Lesioni al LCA è un problema comunemente riscontrato nei soggetti attivi. Anche le lacrime parziali di questa intra-articolare del legamento del ginocchio portare a carenze biomeccanici che compromettono la funzione e la stabilità. Le opzioni correnti per il trattamento delle lacrime ACL parziali vanno da incruento, gestione conservativa a molteplici opzioni chirurgiche, come ad esempio: modifica termica, riparazione singolo fascio, ricostruzione completa, e la ricostruzione della parte danneggiata del legamento nativo. Pochi studi, se del caso, hanno dimostrato un metodo unico per la gestione sia costantemente superiore, e in molti casi i pazienti continuano a dimostrare persistente instabilità e di altre comorbidità. L&#39;obiettivo di questo studio è quello di individuare una fonte cellulare potrebbe ricorrere allo sviluppo di una patch tessutale che potrebbe essere implementata nella riparazione di un ACL parzialmente strappata. Un nuovo protocollo è stato sviluppato per l&#39;espansione di cellule derivate da patienti sottoposti a ricostruzione del LCA. Per isolare le cellule, tessuti HACL macinate ottenute durante la ricostruzione del LCA è stato digerito in una soluzione di collagenasi. Espansione è stata effettuata utilizzando mezzo DMEM/F12 supplementato con 10% di siero bovino fetale (FBS) e 1% di penicillina / streptomicina (P / S). Le cellule sono state poi conservati a -80 ° C o in azoto liquido in un mezzo costituito da congelamento DMSO, FBS e il mezzo di espansione. Dopo lo scongelamento, le cellule derivate HACL sono state poi seminate su un ponteggio ingegneria tessutale, plaga (acido lattico-co-glicolico Poly) e il controllo del tessuto della cultura polistirene (TCPS). Dopo 7 giorni, SEM è stata eseguita per confrontare adesione cellulare alla plaga contro il TCPS controllo. Morfologia cellulare è stata valutata mediante immunofluorescenza. SEM (Scanning Electron Microscope) microscopio hanno dimostrato che le cellule crescevano e rispettati su entrambe le superfici plaga e TCP ed erano confluenti su tutta la superficie di giorno 7. Immunofluorescenza mostrava normale, morfologiche non-ha sottolineatoAL modelli su entrambe le superfici. Questa tecnica è promettente per applicazioni nella rigenerazione e ricostruzione del LCA.

Il modello di lavoro per il recupero chirurgico, la digestione del tessuto e l&#39;isolamento della persona umana legamento crociato anteriore (HACL) cellule derivate è mostrato in Figura 1. Le cellule migrate dai espianti e aderito alle T-25 palloni. Queste cellule sono state coltivate per 3 giorni e poi sono stati visualizzati sotto un microscopio ottico (Figura 2). Un monostrato confluente stato ottenuto giorno 7. La presenza di cellule vitali, sani ha indicato l&#39;operazione rius...

Watch this Scientific Journal Video about Surgical Retrieval, Isolation and In vitro Expansion of Human Anterior Cruciate Ligament-derived Cells for Tissue Engineering Applications at JoVE.com

Surgical Retrieval, Isolation and In vitro Expansion of Human Anterior Cruciate Ligament-derived Cells for Tissue Engineering Applications

Recupero chirurgico, Isolamento e<em&gt; In vitro</em&gt; Ampliamento anteriore umana crociati Cells Legamento di derivazione per applicazioni di ingegneria tissutale

Per le future applicazioni come una patch per riparare rotture parziali del legamento crociato anteriore (LCA), le cellule derivate ACL umane sono state isolate da tessuti ottenuti durante le procedure ricostruttive, espanse in vitro e coltivati ​​in ingegneria tessutale ponteggi. Adesione cellulare e la morfologia è stata poi eseguita per confermare biocompatibilità sulla superficie patibolo.

Injury to the ACL is a commonly encountered problem in active individuals. Even partial tears of this intra-articular knee ligament lead to biomechanical ...

Research

JoVE Journal

Bioengineering

Surgical Retrieval, Isolation and In vitro Expansion of Human Anterior Cruciate Ligament-derived Cells for Tissue Engineering Applications

Tissue Engineering of a Human 3D in vitro Tumor Test System

Tissue Engineering of a Human 3D in vitro Tumor Test System

Ingegneria dei tessuti di un Umano 3D<em&gt; In vitro</em&gt; Sistema Tumore test

Cancer is one of the leading causes of death worldwide.  Current therapeutic strategies are predominantly developed in 2D culture  systems, which ...

Ricerca

Bioingegneria

Athymic Rat Model for Evaluation of Engineered Anterior Cruciate Ligament Grafts

Atimico Rat modello per la valutazione di Engineered legamento crociato anteriore Innesti

Anterior cruciate ligament (ACL) rupture is a common ligamentous injury that often requires surgery because the ACL does not heal well without ...

Eye Irritation Test (EIT) for Hazard Identification of Eye Irritating Chemicals using Reconstructed Human Cornea-like Epithelial (RhCE) Tissue Model

Eye Irritation Test EIT for Hazard Identification of Eye Irritating Chemicals using Reconstructed Human Cornea-like Epithelial RhCE Tissue Model

Oculare Test (EIT) per identificazione del pericolo di sostanze chimiche irritanti oculari utilizzando Ricostruito umana Cornea come epiteliale (RHCE) Tessuto Modello

To comply with the Seventh Amendment to the EU Cosmetics Directive and EU REACH legislation, validated non-animal alternative methods for reliable and ...

Applications of In Vivo Functional Testing of the Rat Tibialis Anterior for Evaluating Tissue Engineered Skeletal Muscle Repair

Applications of In Vivo Functional Testing of the Rat Tibialis Anterior for Evaluating Tissue Engineered Skeletal Muscle Repair

applicazioni di<em&gt; In Vivo</em&gt; Test funzionale del Topo tibiale anteriore per la valutazione di ingegneria tessutale muscolo scheletrico di riparazione

Despite the regenerative capacity of skeletal muscle, permanent functional and/or cosmetic deficits (e.g., volumetric muscle loss (VML) resulting from ...

Melt Electrospinning Writing of Three-dimensional Poly(&#949;-caprolactone) Scaffolds with Controllable Morphologies for Tissue Engineering Applications

Melt Electrospinning Writing of Three-dimensional PolyÃƒÆ’Ã…Â½Ãƒâ€šÃ‚Âµ-caprolactone Scaffolds with Controllable Morphologies for Tissue Engineering Applications

Sciogliere elettrofilatura scrittura di scaffold tridimensionale Poly(ε-caprolactone) con morfologie controllabile per applicazioni di ingegneria del tessuto

This tutorial reflects on the fundamental principles and guidelines for electrospinning writing with polymer melts, an additive manufacturing technology ...

Isolation of Mesenchymal Stem Cells from Human Alveolar Periosteum and Effects of Vitamin D on Osteogenic Activity of Periosteum-derived Cells

Isolamento di cellule staminali mesenchimali da periostio alveolare umano e gli effetti della vitamina D su attività osteogenica delle cellule derivate dal periostio

Mesenchymal stem cells (MSCs) are present in a variety of tissues and can be differentiated into numerous cell types, including osteoblasts. Among the ...

Two Methods for Decellularization of Plant Tissues for Tissue Engineering Applications

Due metodi per decellularizzazione di tessuti vegetali per applicazioni di ingegneria del tessuto

The autologous, synthetic, and animal-derived grafts currently used as scaffolds for tissue replacement have limitations due to low availability, poor ...

Production of Autologous Platelet-Rich Plasma for Boosting In Vitro Human Fibroblast Expansion

Produzione di plasma autologo ricco di piastrine per aumentare l'espansione in vitro dei fibroblasti umani

There is currently great clinical interest in the use of autologous fibroblasts for skin repair. In most cases, culture of skin cells in vitro is ...

Anterior Segment Organ Culture Platform for Tracking Open Globe Injuries and Therapeutic Performance

Piattaforma di coltura d'organo del segmento anteriore per il monitoraggio delle lesioni Open Globe e delle prestazioni terapeutiche

Open globe injuries have poor visual outcomes, often resulting in permanent loss of vision. This is partly due to an extended delay between injury and ...

Fibroblast Derived Human Engineered Connective Tissue for Screening Applications

Tessuto connettivo ingegnerizzato umano derivato da fibroblasti per applicazioni di screening

Fibroblasts are phenotypically highly dynamic cells, which quickly transdifferentiate into myofibroblasts in response to biochemical and biomechanical ...