Name: isolation, culture, and functional characterization of adult mouse cardiomyoctyes
Uploaded: 2013-09-24T18:10:00
Description: Watch this Scientific Journal Video about Isolation, Culture, and Functional Characterization of Adult Mouse Cardiomyoctyes at JoVE.com

1.. Cardiomyocyte Isolation Materialer (Figur 1) Microdissecting pincet Tissue pincet Sarte hæmostatiske pincet Hæmostatiske pincet Microdissecting, savtakkede, buede pincet Operating saks, lige Operating saks, buet 15 ml Falcon-rør (5) 60 mm petriskål Phosphatbufret saltvand (PBS) Nylon Mesh - 400 um porestørrelse Lille tragt Voks overtrukket, flettet silke 4-...

<ol>
	<li>Chlopcikova, S., Psotov&#225;, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Neonatal+rat+cardiomyocytes-a+model+for+the+study+of+morphological,+biochemical+and+electrophysiological+characteristics+of+the+heart.">Neonatal rat cardiomyocytes-a model for the study of morphological, biochemical and electrophysiological characteristics of the heart.</a> Biomedical Papers. , (2001).</li><li>Rosenthal, N., Brown, 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+mouse+ascending:+perspectives+for+human-disease+models.">The mouse ascending: perspectives for human-disease models.</a> Nat. Cell Biol. 9, 993-999 (2007).</li><li>Ballou, L. M., Lin, R. Z. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Rapamycin+and+mTOR+kinase+inhibitors.">Rapamycin and mTOR kinase inhibitors.</a> J. Chem. Biol. 1, 27-36 (2008).</li><li>Brette, F., Orchard, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=T-Tubule+Function+in+Mammalian+Cardiac+Myocytes.">T-Tubule Function in Mammalian Cardiac Myocytes.</a> Circ Res. , (2003).</li><li>Sakata, Y., Hoit, B., Liggett, S., Walsh, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Decompensation+of+pressure-overload+hypertrophy+in+G?q-overexpressing+mice.">Decompensation of pressure-overload hypertrophy in G?q-overexpressing mice.</a> Circulation. , (1998).</li><li>Lieu, D. 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=Absence+of+Transverse+Tubules+Contributes+to+Non-Uniform+Ca+2+Wavefronts+in+Mouse+and+Human+Embryonic+Stem+Cell-Derived+Cardiomyocytes.">Absence of Transverse Tubules Contributes to Non-Uniform Ca 2+Wavefronts in Mouse and Human Embryonic Stem Cell-Derived Cardiomyocytes.</a> Stem Cells and Development. 18, 1493-1500 (2009).</li><li>Lim, H., De Windt, L., Mante, J., Kimball, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Reversal+of+cardiac+hypertrophy+in+transgenic+disease+models+by+calcineurin+inhibition.">Reversal of cardiac hypertrophy in transgenic disease models by calcineurin inhibition.</a> J. Mol. Cell Cardiol. 32 (4), 697-709 (2000).</li><li>Muthuchamy, 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=Mouse+model+of+a+familial+hypertrophic+cardiomyopathy+mutation+in+alpha-tropomyosin+manifests+cardiac+dysfunction.">Mouse model of a familial hypertrophic cardiomyopathy mutation in alpha-tropomyosin manifests cardiac dysfunction.</a> Circ. Res. 85, 47-56 (1999).</li><li>M&#252;ller, J. 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=Differential+regulation+of+the+cardiac+sodium+calcium+exchanger+promoter+in+adult+and+neonatal+cardiomyocytes+by+Nkx2.5+and+serum+response+factor.">Differential regulation of the cardiac sodium calcium exchanger promoter in adult and neonatal cardiomyocytes by Nkx2.5 and serum response factor.</a> J. Mol. Cell. Cardiol. 34, 807-821 (2002).</li><li>Epstein, F., Hunter, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Signaling+pathways+for+cardiac+hypertrophy+and+failure.">Signaling pathways for cardiac hypertrophy and failure.</a> New England Journal of Medicine. 341 (17), 1276-1283 (1999).</li><li>Snopko, R., Aromolaran, A., Karko, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cell+culture+modifies+Ca+2++signaling+during+excitation-contraction+coupling+in+neonate+cardiac+myocytes.">Cell culture modifies Ca 2+ signaling during excitation-contraction coupling in neonate cardiac myocytes.</a> Cell Calcium. , (2007).</li><li>Ranu, H., Terracciano, C., Davia, K. <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+Na+/Ca2+-exchanger+overexpression+on+excitation-contraction+coupling+in+adult+rabbit+ventricular+myocytes.">Effects of Na+/Ca2+-exchanger overexpression on excitation-contraction coupling in adult rabbit ventricular myocytes.</a> J. Mol. Cell Cardiol. 34 (4), 389-400 (2002).</li><li>Kaab, S., Nuss, H. B., Chiamvimonvat, N., O'Rourke, B., Pak, P. H., Kass, D. A., Marban, E., Tomaselli, G. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ionic+mechanism+of+action+potential+prolongation+in+ventricular+myocytes+from+dogs+with+pacing-induced+heart+failure.">Ionic mechanism of action potential prolongation in ventricular myocytes from dogs with pacing-induced heart failure.</a> Circ. Res. 78 (2), (1996).</li><li>Splawski, 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=Variant+of+SCN5A+sodium+channel+implicated+in+risk+of+cardiac+arrhythmia.">Variant of SCN5A sodium channel implicated in risk of cardiac arrhythmia.</a> Science. 297, 1333-1336 (2002).</li><li>Zhou, Y., Wang, S., Zhu, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Culture+and+adenoviral+infection+of+adult+mouse+cardiac+myocytes:+methods+for+cellular+genetic+physiology.">Culture and adenoviral infection of adult mouse cardiac myocytes: methods for cellular genetic physiology.</a> Am. J. Physiol. Heart Circ. Physiol. 279 (1), 429-436 (2000).</li><li>Sussman, M., Lim, H., Gude, N., Taigen, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Prevention+of+cardiac+hypertrophy+in+mice+by+calcineurin+inhibition.">Prevention of cardiac hypertrophy in mice by calcineurin inhibition.</a> Science. , (1998).</li><li>Heinzel, F. R., 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=Impairment+of+diazoxide-induced+formation+of+reactive+oxygen+species+and+loss+of+cardioprotection+in+connexin+43+deficient+mice.">Impairment of diazoxide-induced formation of reactive oxygen species and loss of cardioprotection in connexin 43 deficient mice.</a> Circ. Res. 97, 583-586 (2005).</li><li>Li, X., Heinzel, F. R., Boengler, K., Schulz, R., Heusch, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Role+of+connexin+43+in+ischemic+preconditioning+does+not+involve+intercellular+communication+through+gap+junctions.">Role of connexin 43 in ischemic preconditioning does not involve intercellular communication through gap junctions.</a> J. Mol. Cell. Cardiol. 36, 161-163 (2004).</li><li>Rockman, H. A., Ross, R. S., Harris, A. N., Knowlton, K. U., Steinhelper, M. E., Field, L. J., Ross, J., Chein, K. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Segregation+of+atrial-specific+and+inducible+expression+of+an+atrial+natriuretic+factor+transgene+in+an+in+vivo+murine+model+of+cardiac+hypertrophy.">Segregation of atrial-specific and inducible expression of an atrial natriuretic factor transgene in an in vivo murine model of cardiac hypertrophy.</a> Proc. Natl. Acad. Sci. USA. 88, 8277-8281 (1991).</li><li>Nakamura, A., Rokosh, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=LV+systolic+performance+improves+with+development+of+hypertrophy+after+transverse+aortic+constriction+in+mice.">LV systolic performance improves with development of hypertrophy after transverse aortic constriction in mice.</a> Am. J. Physiol. Heart Circ. Physiol. 281 (3), 1104-1112 (2001).</li><li>Bostr&#246;m, 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=A+PGC1-?-dependent+myokine+that+drives+brown-fat-like+development+of+white+fat+and+thermogenesis.">A PGC1-?-dependent myokine that drives brown-fat-like development of white fat and thermogenesis.</a> Nature. 481, 463-468 (2012).</li><li>Liao, R., Jain, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Isolation,+culture,+and+functional+analysis+of+adult+mouse+cardiomyocytes.">Isolation, culture, and functional analysis of adult mouse cardiomyocytes.</a> Methods Mol. Med. 139, 251-262 (2007).</li><li>Volz, A., Piper, H. M., Siegmund, B., Schwartz, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Longevity+of+adult+ventricular+rat+heart+muscle+cells+in+serum-free+primary+culture.">Longevity of adult ventricular rat heart muscle cells in serum-free primary culture.</a> J. Mol. Cell. Cardiol. 23, 161-173 (1991).</li><li>Guatimosim, S., Guatimosim, C., Song, L. -. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Methods in Molecular Biology. 689, 205-214 (2010).</li><li>Yang, J., Delaloye, K., Lee, U. S., Cui, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Patch+Clamp+and+Perfusion+Techniques+for+Studying+Ion+Channels+Expressed+in+Xenopus+oocytes.">Patch Clamp and Perfusion Techniques for Studying Ion Channels Expressed in Xenopus oocytes.</a> J. Vis. Exp. (47), e2269 (2011).</li><li>Brown, A. L., Johnson, B. E., Goodman, M. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Patch+Clamp+Recording+of+Ion+Channels+Expressed+in+Xenopus+Oocytes.">Patch Clamp Recording of Ion Channels Expressed in Xenopus Oocytes.</a> J. Vis. Exp. (20), e936 (2008).</li><li>Arman, A. C., Sampath, A. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Patch+Clamp+Recordings+from+Mouse+Retinal+Neurons+in+a+Dark-adapted+Slice+Preparation.">Patch Clamp Recordings from Mouse Retinal Neurons in a Dark-adapted Slice Preparation.</a> J. Vis. Exp. (43), e2107 (2010).</li><li>Wen, H., Brehm, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Paired+patch+clamp+recordings+from+motor-neuron+and+target+skeletal+muscle+in+zebrafish.">Paired patch clamp recordings from motor-neuron and target skeletal muscle in zebrafish.</a> J. Vis. Exp. (45), e2351 (2010).</li><li>Maier, S., Westenbroek, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+unexpected+role+for+brain-type+sodium+channels+in+coupling+of+cell+surface+depolarization+to+contraction+in+the+heart.">An unexpected role for brain-type sodium channels in coupling of cell surface depolarization to contraction in the heart.</a> Proc. Natl. Acad. Sci. U.S.A. 99 (6), 4073-4078 (2002).</li><li>Shroff, S. G., Saner, D. R., Lal, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dynamic+micromechanical+properties+of+cultured+rat+atrial+myocytes+measured+by+atomic+force+microscopy.">Dynamic micromechanical properties of cultured rat atrial myocytes measured by atomic force microscopy.</a> Am. J. Physiol. 269, 286-292 (1995).</li><li>Domke, J., Parak, W. J., George, M., Gaub, H. E., Radmacher, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mapping+the+mechanical+pulse+of+single+cardiomyocytes+with+the+atomic+force+microscope.">Mapping the mechanical pulse of single cardiomyocytes with the atomic force microscope.</a> European Biophysics Journal. 28, 179-186 (1999).</li><li>Smith, B. A., Tolloczko, B., Martin, J. G., Gr&#252;tter, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Probing+the+Viscoelastic+Behavior+of+Cultured+Airway+Smooth+Muscle+Cells+with+Atomic+Force+Microscopy:+Stiffening+Induced+by+Contractile+Agonist.">Probing the Viscoelastic Behavior of Cultured Airway Smooth Muscle Cells with Atomic Force Microscopy: Stiffening Induced by Contractile Agonist.</a> Biophysical Journal. 88, 2994-3007 (2005).</li></ol>

I denne rapport har vi beskrevet de teknikker, der er nødvendige for en vellykket isolering og dyrkning af voksne CMS musen hjerte. Vores teknik giver mulighed for efterfølgende undersøgelse af CM funktion og ophidselse hjælp af de metoder, der er beskrevet ovenfor. Den kritiske parameter for at studere funktionalitet voksen CMS sundhed og kvalitet af den isolerede CMS. Som beskrevet ovenfor vores teknikker giver mulighed for et højt udbytte af funktionelle celler, som er modtagelige for manipulation af genekspress...

Murine modeller af hjerte-kar-sygdom har tjent som effektive værktøjer til afdækning grundlæggende sygdomsmekanismer 1,2 samt for at identificere potentielle terapeutiske mål 1,3. Især har brugen af både murine modeller af erhvervet hjertesygdom (såsom tryk-overload) 4,5 og transgene musemodeller avancerede vores forståelse af hjertesygdom 6-8. Anvendelsen af cellekulturteknikker at studere signalleringskaskader 3,9,10 og ændringer i de enkelte proteiner, der ligger til grund for cellulær excitabilitet og excitation-kontraktion kobling i hjertet 11-13 på niveau med enkelt celle har suppleret in vivo musemodeller. Imidlertid har manglen på passende cellelinjer, der afspejler voksen CM struktur og funktion været en betydelig begrænsning. Forskere har forsøgt at løse dette ved at studere individuelle proteiner, såsom ionkanaler i heterologe ekspressionssystemer <sup&gt; 14, og mens disse undersøgelser har givet os med nyttige oplysninger i form af ionkanal-biofysik eller protein menneskehandel, utilstrækkelig repræsentation af indfødte mikromiljø CMS er en væsentlig begrænsning. For det andet, da de fleste af disse heterologe celler ikke har en moden kontraktile apparat, det har ikke været muligt at undersøge kontraktile funktion og den komplekse vekselvirkning mellem cellulær excitabilitet og sammentrækning. Af denne grund har vendte forskerne til primære cardiac cellekulturer til mange af deres in vitro funktionelle studier. Endelig isolerede cardiomyocyte undersøgelser muliggøre vurdering af kontraktile funktion uden forstyrrende faktorer i flercellede forberedelse inklusive effekten af ​​ar eller fibrose og fiber orientering. Primære neonatale rotte ventrikulære cardiomyocytter (NRVMs), er forholdsvis let at kulturen kan være inficeret med adenovirus og lentivirus at manipulere genekspression 15, ennd har derfor været anvendt med succes 1, men har begrænsninger af deres egne. Selv om de giver en fysiologisk mikromiljø 1 og har været arbejdshest af signalsystemet feltet væsentlige forskelle mellem morfologi og subcellulære organisering af NRVMs og voksne cardiomyoctyes gør dem en utilstrækkelig model for undersøgelse af ioniske strømme og excitation-kontraktion kobling i den voksne hjerte . Mest bemærkelsesværdigt NRVMs mangler en endelig t-rørformet delsystem 4. Da Ca 2 + flux og dynamik er kritisk afhængige af moden t-rørformet og sarcoplasmic reticulum (SR) struktur 6, Ca 2 + dynamik og funktionelle studier af hjertets kontraktilitet i NRVMs er ikke en nøjagtig afspejling af disse kritiske processer i voksne cardiomyocytes. Yderligere nogle komponenter i signalveje varierer mellem neonatale og voksne mus 9, hvilket giver en anden begrænsning for at studere sygdomsprocesser og deres iVIRKNING på cellulær ophidselse og kontraktilitet i NRVMs. Endelig fordelingen af ​​kontraktile maskiner fører til flerstrenget og uensartet celle afkortning begrænser nøjagtigheden af ​​kontraktile målinger. Brugen af isolerede voksne cardiomyocytes giver derfor et mere præcist in vitro modellering system. Den ekstraordinære stigning i viden muliggjort af genetisk manipulation af mus understreger betydningen af ​​at opnå funktionelle isolerede kardiomyocytter fra mus. Faktisk har karakterisering af voksne CMS isoleret fra musemodeller kaste lys over mange biologiske og patologiske begivenheder. Isolerede CMS transgene musemodeller har tilladt for undersøgelser af gevinst eller tab af funktion af proteiner på kontraktile egenskaber af enkeltceller 2,16, og levedygtigheden i sygdomsmodeller såsom iskæmi / reperfusion 17,18 og dermed supplere oplysninger fra de i vivo undersøgelser afSE mus. Brug af isolerede voksen CMS fra murine modeller af erhvervet hjertesygdom 3,19,20 (såsom tværgående pulsåresammensnøring-induceret pres overbelastning, der efterligner hypertension eller aortaklappen stenose) eller motion 5,21 (til modellering fysiologisk hypertrofi) giver mulighed for undersøgelse af samspillet mellem signaleringskaskader impliceret i disse processer med cellulær excitabilitet og excitation-kontraktion kobling ved niveauet for den enkelt celle. Endvidere evnen til at manipulere genekspressionen ved hjælp adenoviral drevet genekspression i voksen CMS giver os mulighed for at dissekere komponenterne i komplekse signaleringsveje. Fra et elektrofysiologisk perspektiv har hel-celle spænding og strøm clamp eksperimenter på isolerede voksen CMS været afgørende at belyse karakteren af ​​ioniske flux ved baseline og i forskellige sygdomstilstande. På grund af den komplekse struktur af den cellulære membran og forskellen protei stilladser strukturer mellem voksen CMS og NRVMs eller heterologe cellelinjer, evnen til at lappe voksne celler giver en meget bedre repræsentation af virkningerne af visse membranproteiner, strukturelle proteiner og ionkanal-interagerende partnere på de elektrofysiologiske komponenter af den voksne hjerte. Trods sådanne fremtrædende fordele i at studere voksne murine cardiomyocytes, isolere og dyrkning af voksne mus cardiomyocytes har været en udfordring, opfordrer behovet for en systematisk og præcis beskrivelse af metoden til at isolere levedygtige mus cardiomyocytter og at fastholde dem i kultur at tillade yderligere genetisk manipulation ved hjælp af viral vektorer. Tidligere undersøgelser har brugt enten akut isoleret mus voksen CMS eller kulturperler rotte voksen CMS. Sidstnævnte er lettere at kultur end voksen mus CMS, og de ​​fleste eksperimenter manipulere genekspression in vitro har anvendt rotte voksen CMS. Få studier har med succes ændret og undersøgt functiOnal genekspression i mus voksen CMS, præsentere en stor begrænsning i omfanget af eksperimenter. Derfor, her præsenterer vi i detaljer sådanne metoder, modificeret fra tidligere undersøgelser, til isolering 7,8,22, kultur 3,10,15,23, adenovirusinfektion 11-13,15, og funktionel analyse af voksen mus ventrikulære cardiomyoctyes. Denne isolation protokol resultater i Ca 2 +-tolerante, overgearet cardiomyocytter, som vi har med held dyrkes i op til 72 timer og kortvarigt transficeret med adenovirus. Funktionaliteten af disse isolerede celler kan vurderes ved hjælp af MMSYS imaging system 14,24 og patch clamp, som også vil blive drøftet.

<table border="1">
<tbody>
 <tr>
 <td>Name of 			Reagent/Material</td>
 <td>Company</td>
 <td>Catalog Number</td>
 <td>Comments</td>
 </tr>
 <tr>
 <td>Sodium Chloride</td>
 <td>Sigma</td>
 <td>S7653</td>
 <td></td>
 </tr>
 <tr>
 <td>Potassium Chloride</td>
 <td>Sigma</td>
 <td>P9333</td>
 <td></td>
 </tr>
 <tr>
 <td>Magnesium Chloride</td>
 <td>Sigma</td>
 <td>M8266</td>
 <td></td>
 </tr>
 <tr>
 <td>HEPES</td>
 <td>Sigma</td>
 <td>H3375</td>
 <td></td>
 </tr>
 <tr>
 <td>Sodium Phosphate 			Monobasic</td>
 <td>Sigma</td>
 <td>S8282</td>
 <td></td>
 </tr>
 <tr>
 <td>D-glucose minimum</td>
 <td>Sigma</td>
 <td>G8270</td>
 <td></td>
 </tr>
 <tr>
 <td>Taurine</td>
 <td>Sigma</td>
 <td>T0625</td>
 <td></td>
 </tr>
 <tr>
 <td>2,3-Butanedione 			monoxime</td>
 <td>Sigma</td>
 <td>B0752</td>
 <td></td>
 </tr>
 <tr>
 <td>Collagenase B</td>
 <td>Roche Applied 			Science</td>
 <td>11088807001 </td>
 <td></td>
 </tr>
 <tr>
 <td>Collagenase D</td>
 <td>Roche Applied 			Science</td>
 <td>11088858001 </td>
 <td></td>
 </tr>
 <tr>
 <td>Protease 			XIV from Streptomyces griseus</td>
 <td>Sigma</td>
 <td>P5147</td>
 <td></td>
 </tr>
 <tr>
 <td>Albumin from Bovine 			Serum</td>
 <td>Sigma</td>
 <td>A2153</td>
 <td></td>
 </tr>
 <tr>
 <td>Calcium Chloride</td>
 <td>Sigma</td>
 <td>C8106</td>
 <td></td>
 </tr>
 <tr>
 <td>Minimum Essential 			Media</td>
 <td>Sigma</td>
 <td>51411C</td>
 <td></td>
 </tr>
 <tr>
 <td>Albumin solution 			from bovine serum</td>
 <td>Sigma</td>
 <td>A8412</td>
 <td></td>
 </tr>
 <tr>
 <td>L-glutamine</td>
 <td>Sigma</td>
 <td>G3126</td>
 <td></td>
 </tr>
 <tr>
 <td>Penicillin-Streptomycin</td>
 <td>Sigma</td>
 <td>P4333</td>
 <td></td>
 </tr>
 <tr>
 <td>Insulin-transferrin-sodium 			selenite media supplement</td>
 <td>Sigma</td>
 <td>I1884</td>
 <td></td>
 </tr>
 <tr>
 <td>Cesium Chloride</td>
 <td>Sigma</td>
 <td><a href="http://www.sigmaaldrich.com/catalog/product/sial/289329?lang=en&amp;region=US" target="_blank">289329</a></td>
 <td></td>
 </tr>
 <tr>
 <td>Glutamate</td>
 <td>Sigma</td>
 <td>G3291</td>
 <td></td>
 </tr>
 <tr>
 <td>Adenosine 			5'-triphosphate magnesium salt</td>
 <td>Sigma</td>
 <td>A9187</td>
 <td></td>
 </tr>
 <tr>
 <td>Ethylene 			glycol-bis(2-aminoethylether)-N,N,N',N'-tetraacetic 			acid</td>
 <td>Sigma</td>
 <td>E3889</td>
 <td></td>
 </tr>
 <tr>
 <td>Cesium Hydroxide 			Solution</td>
 <td>Sigma</td>
 <td>232041</td>
 <td></td>
 </tr>
 <tr>
 <td>Tetraethylammonium 			hydroxide solution</td>
 <td>Sigma</td>
 <td>86643</td>
 <td></td>
 </tr>
 <tr>
 <td>OptiVisor optical 			glass binocular 			visor</td>
 <td>Dohegan Optical 			Company Inc.</td>
 <td>N/A</td>
 <td></td>
 </tr>
 <tr>
 <td>Tissue 			forceps, 5.5", 1x2 teeth</td>
 <td>Roboz Scientific</td>
 <td>RS-8164</td>
 <td></td>
 </tr>
 <tr>
 <td>Moloney 			forceps - 4.5" (11.5 cm) long slight curve, serrated </td>
 <td>Roboz Scientific</td>
 <td>RS-8254</td>
 <td></td>
 </tr>
 <tr>
 <td>Dumont 			#3 Forceps, Dumostar, tip size 0.17 x 0.10mm</td>
 <td>Roboz Scientific</td>
 <td>RS-4966</td>
 <td></td>
 </tr>
 <tr>
 <td>Packer 			Mosquito Forceps 5" Straight Flat</td>
 <td>Roboz Scientific</td>
 <td>RS-7114</td>
 <td></td>
 </tr>
 <tr>
 <td>Micro 			Dissecting Scissors 4.5" Curved Sharp/Sharp </td>
 <td>Roboz Scientific</td>
 <td>RS-5917</td>
 <td></td>
 </tr>
 <tr>
 <td>Micro Dissecting Scissors 3.5" Straight Sharp/Sharp20mm</td>
 <td>Roboz Scientific</td>
 <td>RS-5907</td>
 <td></td>
 </tr>
 </tbody>
</table>

isolation, culture, and functional characterization of adult mouse cardiomyoctyes

Brugen af ​​primære cardiomyocytes (CMS) i kultur har givet et stærkt supplement til murine modeller af hjertesygdomme i at fremme vores forståelse af hjertesygdom. Især har evnen til at studere ionhomeostase, ionkanalfunktion, cellulær ophidselse og excitation-kontraktion kobling og deres ændringer i syge forhold og ved sygdomsfremkaldende mutationer ført til betydelige indsigt i hjertesygdomme. Desuden har manglen på en passende udødeliggjort cellelinje til at efterligne voksne CMS og begrænsningerne i neonatal CMS (som mangler mange af de strukturelle og funktionelle biomekanik karakteristisk for voksen CMS) i kultur hæmmet vores forståelse af det komplekse samspil mellem signalveje, ionkanaler og kontraktile egenskaber i den voksne hjerte styrke vigtigheden af ​​at undersøge voksne isolerede cardiomyocytes. Her præsenterer vi metoder til isolering, kultur, manipulation af genekspression ved adenovirus-EXPREssed proteiner og efterfølgende funktionel analyse af kardiomyocytter fra den voksne mus. Brugen af disse teknikker vil bidrage til at udvikle mekanistisk indsigt i signalveje, der regulerer cellulær ophidselse, Ca 2 + dynamik og kontraktilitet og give en langt mere fysiologisk relevant karakterisering af hjertekarsygdomme.

Isoleringen af voksne cardiomyoctyes resulterer i stavformede, riller og hvilende (ikke spontant slående) celler (figur 5A). Døde celler vil se afrundet og ingen riller vil være til stede. Hvilende celler kan dyrkes og transficeres med adenovirus at manipulere genekspression (figurerne 5B og 5C). Efter 24 timer af kultur, er morfologien af levende celler ikke ændres, er de stadig Ca2 +-tolerant, og de ​​kan tempo ved feltstimulering. Med den foreslåe...

Watch this Scientific Journal Video about Isolation, Culture, and Functional Characterization of Adult Mouse Cardiomyoctyes at JoVE.com

Isolation, Culture, and Functional Characterization of Adult Mouse Cardiomyoctyes

Her beskrives isoleringen af ​​voksne mus cardiomyoctyes bruger Langendorff perfusion system. De resulterende celler er Ca2 +-tolerante elektrisk hvilende og kan dyrkes og transficeres med adeno-eller lentivirus at manipulere genekspression. Deres funktionalitet kan også analyseres ved hjælp af MMSYS systemet og patch clamp teknikker.

Isolation, Kultur og funktionel karakterisering af Voksen Mouse Cardiomyoctyes

The use of primary cardiomyocytes (CMs) in culture has provided a powerful complement to murine models of heart disease in advancing our understanding of ...

Research

JoVE Journal

Biology

Dissection of Hippocampal Dentate Gyrus from Adult Mouse

The hippocampus is one of the most widely studied areas in the brain because of its important functional role in memory processing and learning, its ...

Isolation and Culture of Adult Epithelial Stem Cells from Human Skin

The homeostasis of all self-renewing tissues is dependent on adult stem cells. As undifferentiated stem cells undergo asymmetric divisions, they generate ...

Isolation and Culture of Neonatal Mouse Cardiomyocytes

Isolering og dyrkning af Neonatal Mouse cardiomyocytes

Cultured neonatal cardiomyocytes have long been used to study  myofibrillogenesis and myofibrillar functions. Cultured cardiomyocytes allow  for easy ...

Isolation and Culture of Dental Epithelial Stem Cells from the Adult Mouse Incisor

Isolering og dyrkning af Dental Epiteliale stamceller fra voksne mus Fortand

Understanding the cellular and molecular mechanisms that underlie tooth regeneration and renewal has become a topic of great interest1-4, and the mouse ...

Isolation and Culture of Adult Mouse Cardiomyocytes for Cell Signaling and in vitro Cardiac Hypertrophy

Isolation and Culture of Adult Mouse Cardiomyocytes for Cell Signaling and in vitro Cardiac Hypertrophy

Isolering og dyrkning af Voksen Mouse kardiomyocytter for cellesignalering og<em&gt; In vitro</em&gt; Hjertehypertrofi

Technological advances have made genetically modified mice, including transgenic and gene knockout mice, an essential tool in many research fields. Adult ...

Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue

Isolering og funktionel analyse af mitokondrier fra dyrkede celler og mus Tissue

Comparison between two or more distinct groups, such as healthy vs. disease, is necessary to determine cellular status. Mitochondria are at the nexus of ...

Isolation, Culture and Transduction of Adult Mouse Cardiomyocytes

Isolation, Kultur og transduktion af Voksen Mouse cardiomyocytter

Cultured cardiomyocytes can be used to study cardiomyocyte biology using techniques that are complementary to in vivo systems. For example, the purity and ...

Methods for the Isolation, Culture, and Functional Characterization of Sinoatrial Node Myocytes from Adult Mice

Metoder til isolering, Kultur og funktionel karakterisering af sinoatrialt Node Myocytter fra voksne mus

Sinoatrial node myocytes (SAMs) act as the natural pacemakers of the heart, initiating each heart beat by generating spontaneous action potentials (APs). ...

Isolation and Culture of Primary Mouse Keratinocytes from Neonatal and Adult Mouse Skin

Isolering og kultur af primære muskeratinocytter fra neonatal og voksen mus hud

The keratinocyte (KC) is the predominant cell type in the epidermis, the outermost layer of the skin. Epidermal KCs play a critical role in providing skin ...

Isolation, Characterization, and Differentiation of Cardiac Stem Cells from the Adult Mouse Heart

Isolation, karakterisering og differentiering af Cardiac stamceller fra voksne mus hjerte

Myocardial infarction (MI) is a leading cause of morbidity and mortality around the world. A major goal of regenerative medicine is to replenish the dead ...