Name: live cell response to mechanical stimulation studied by integrated optical and atomic force microscopy
Uploaded: 2010-10-04T17:00:00
Description: Watch this Scientific Journal Video about Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy at JoVE.com

Plasmide vinculina-GFP è stato un dono di Kenneth Yamada, National Institutes of Health, National Institute of Dental Research e craniofacciale, Bethesda, Maryland, e actina-MRFP plasmide era un dono di Michael Davidson, Florida State University, Tallahassee, in Florida. Questo lavoro è stato sostenuto dal premio alla carriera NSF # 0747334 e AHA-Nazionale SDG # 0835205N di Andreea Trache.

1. Panoramica del sistema integrato di microscopio Il sistema di microscopio che viene utilizzato per questi studi è stato descritto in dettaglio 1. In breve, una rovesciata Olympus IX-81 con microscopio TIRF attaccamento (Olympus, Center Valley, PA) è combinata con CSU-22 Yokogawa testa di scansione (Yokogawa Electric Inc, Giappone). Un microscopio SZ Bioscope forza atomica (Veeco Instruments Inc, Santa Barbara, CA) è montato sulla parte superiore del microscopio ottico invertit...

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	<li>Trache, A., Lim, S. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Integrated+microscopy+for+real-time+imaging+of+mechanotransduction+studies+in+live+cells.">Integrated microscopy for real-time imaging of mechanotransduction studies in live cells.</a> J Biomed Opt. 14, 034024-03 (2009).</li><li>Trache, A., Meininger, G. A., Coico, R., Kowalik, T., Quarles, J. M., Stevenson, B., Taylor, R. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Atomic+Force+Microscopy.">Atomic Force Microscopy.</a> Current Protocols in Microbiology. , 2.1-2.17 (2008).</li><li>Axelrod, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Selective+imaging+of+surface+fluorescence+with+very+high+aperture+microscope+objectives.">Selective imaging of surface fluorescence with very high aperture microscope objectives.</a> J Biomed Opt. 6, 6-13 (2001).</li><li>Trache, A., Meininger, G. A., Coico, R., Kowalik, T., Quarles, J. M., Stevenson, B., Taylor, R. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Total+Internal+Reflection+Fluorescence+Microscopy.">Total Internal Reflection Fluorescence Microscopy.</a> Current Protocols in Microbiology. , 2.1-2.22 (2008).</li><li>Inoue, S., Inoue, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Direct-view+high-speed+confocal+scanner:+the+CSU-10.">Direct-view high-speed confocal scanner: the CSU-10.</a> Methods Cell Biol. 70, 87-127 (2002).</li><li>Binnig, G., Quate, C. F., Gerber, C. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Atomic+force+microscope.">Atomic force microscope.</a> Phys Rev Lett. 56, 930-933 (1986).</li><li>Stamenovi&#263;, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cytoskeletal+mechanics+in+airway+smooth+muscle+cells.">Cytoskeletal mechanics in airway smooth muscle cells.</a> Respir Physiol Neurobiol. 163, 25-32 (2008).</li><li>Gunst, S. J., Tang, D. D., Opazo Saez, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cytoskeletal+remodeling+of+the+airway+smooth+muscle+cell:+a+mechanism+for+adaptation+to+mechanical+forces+in+the+lung.">Cytoskeletal remodeling of the airway smooth muscle cell: a mechanism for adaptation to mechanical forces in the lung.</a> Respir Physiol Neurobiol. 137, 151-168 (2003).</li><li>Worth, N. F., Rolfe, B. E., Song, J., Campbell, G. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Vascular+smooth+muscle+cell+phenotypic+modulation+in+culture+is+associated+with+reorganization+of+contractile+and+cytoskeletal+proteins.">Vascular smooth muscle cell phenotypic modulation in culture is associated with reorganization of contractile and cytoskeletal proteins.</a> Cell Motility and the Cytoskeleton. 49, 130-145 (2001).</li><li>Romer, H. R., Birukov, K. G., Garcia, J. G. N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Focal+Adhesions:+paradigm+for+a+signaling+nexus.">Focal Adhesions: paradigm for a signaling nexus.</a> Circulation Research. 98, 606-616 (2006).</li><li>Opazo Saez, A., Zhang, W., Wu, Y., Turner, C. E., Tang, D. D., Gunst, S. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tension+development+during+contractile+stimulation+of+smooth+muscle+requires+recruitment+of+paxillin+and+vinculin+to+the+membrane.">Tension development during contractile stimulation of smooth muscle requires recruitment of paxillin and vinculin to the membrane.</a> Am J Physiol Cell Physiol. 286, C433-C447 (2004).</li><li>Alenghat, F. J., Ingber, D. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanotransduction:+all+signals+point+to+cytoskeleton,+matrix+and+integrins.">Mechanotransduction: all signals point to cytoskeleton, matrix and integrins.</a> Sciences STKE. 119, pe6-pe6 (2002).</li><li>Zamir, E., Geiger, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Molecular+complexity+and+dynamics+of+cell-matrix+adhesions.">Molecular complexity and dynamics of cell-matrix adhesions.</a> J Cell Sci. 114, 3583-3590 (2001).</li><li>Geiger, B., Bershdsky, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Assembly+and+mechanosensory+function+of+focal+contacts.">Assembly and mechanosensory function of focal contacts.</a> Curr Opin Cell Biol. 13, 584-592 (2001).</li><li>Sastry, S. K., Burridge, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Focal+Adhesions:+a+nexus+for+intracellular+signaling+and+cytoskeletal+dynamics.">Focal Adhesions: a nexus for intracellular signaling and cytoskeletal dynamics.</a> Exp Cell Res. 261, 25-36 (2000).</li><li>Orr, A. W., Helmke, B. P., Blackman, B. R., Schwartz, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanisms+of+mechanotransduction.">Mechanisms of mechanotransduction.</a> Dev Cell. 10, 11-20 (2006).</li></ol>

Aderenze citoscheletro 7-10 e 11-16 focali sono strutture dinamiche che assemblano, si disperdono e girare come le cellule migrano o rispondere a forza meccanica 17. Essi hanno funzioni importanti nella regolazione della crescita cellulare, la sopravvivenza, e l&#39;espressione genica. Conoscendo la loro distribuzione e le dinamiche specifiche fornisce una migliore comprensione di come le cellule comunicano con la matrice e tra loro. Questo sistema nuovo micr...

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		<th>Material Name</th>
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		<th>Catalogue Number</th>
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<td>AFM tip</td>
<td>&nbsp;</td>
<td>Novascan Technologies</td>
<td>&nbsp;</td>
<td>2 micron Borosilicate bead, 0.01N/m, Biotin Surface</td>
</tr>
<tr>
<td>avidin</td>
<td>&nbsp;</td>
<td>Sigma Aldrich</td>
<td>A9275</td>
<td>1mg/mL in DPBS</td>
</tr>
<tr>
<td>Fibronectin</td>
<td>&nbsp;</td>
<td>Sigma Aldrich</td>
<td>F4759</td>
<td>1 mg/mL</td>
</tr>
<tr>
<td>DPBS</td>
<td>&nbsp;</td>
<td>Invitrogen</td>
<td>21600-051</td>
<td>&nbsp;</td>
<tr>
<td>Amaxa transfection kit for Smooth Muscle Cells</td>
<td>&nbsp;</td>
<td>Lonza</td>
<td>VPI-1004</td>
<td>&nbsp;</td>
<tr>
<td>Mattek glass bottom dishes</td>
<td>&nbsp;</td>
<td>MatTek Corporation</td>
<td>P60G-1.5-30-F</td>
<td>Sterile 60mm Falcon dishes with glass bottom coverslip no. 1.5</td>
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live cell response to mechanical stimulation studied by integrated optical and atomic force microscopy

Per capire il meccanismo con cui le cellule viventi senso forze meccaniche, e come rispondono e si adattano al loro ambiente, una nuova tecnologia in grado di studiare il comportamento delle cellule a livello sub-cellulare di livello ad alta risoluzione spaziale e temporale è stato sviluppato. Così, un microscopio a forza atomica (AFM) è stato integrato con la riflessione interna totale fluorescenza (TIRF) microscopia e in rapida rotazione del disco (FSD) microscopia confocale. Il sistema integrato è ampiamente applicabile per una vasta gamma di studi di dinamica molecolare in alcun cellule aderenti vivere, permettendo diretta imaging ottico delle risposte delle cellule alla stimolazione meccanica in tempo reale. Riorganizzazione significativa dei filamenti di actina e adesioni focali è stato dimostrato a causa di locali stimolazione meccanica sulla superficie cellulare apicale che hanno indotto cambiamenti nella struttura cellulare in tutto il corpo cellulare. Queste tecniche innovative forniranno nuove informazioni per comprendere la ristrutturazione delle cellule vive e dinamiche in risposta alla forza meccanica. Un protocollo dettagliato ed un set di dati rappresentativi che la risposta delle cellule spettacolo dal vivo allo stimolo meccanico sono presentati.

Watch this Scientific Journal Video about Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy at JoVE.com

Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy

Questo lavoro si propone di istruire il lettore al funzionamento di un sistema integrato di forza atomica-microscopio ottico di imaging per la stimolazione meccanica delle cellule vive nella cultura. Un passo-passo il protocollo viene presentato. Un insieme rappresentativo di dati che mostra dal vivo risposta alla stimolazione meccanica delle cellule è presentato.

Risposta cellulare allo stimolo meccanico vivere Studiato da Integrated ottica e microscopia a forza atomica

To understand the mechanism by which living cells sense mechanical forces, and how they respond and adapt to their environment, a new technology able to ...

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