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

Plásmido vinculina-GFP fue un regalo de Kenneth Yamada, Institutos Nacionales de Salud, Instituto Nacional de Investigación Dental y Craneofacial, Bethesda, Maryland, y la actina mRFP plásmido fue un regalo de Michael Davidson, Florida State University, Tallahassee, Florida. Este trabajo fue apoyado por el premio de su carrera NSF # 0747334 y AHA-Nacional SDG # 0835205N a Andreea Trache.

1. Panorámica del sistema de microscopio integrado El sistema de microscopio que se utiliza para estos estudios se ha descrito en detalle 1. En pocas palabras, un invertido Olympus IX-81 con microscopio TIRF adjunto (Olympus, Center Valley, PA) se combina con la CSU-22 Yokogawa cabeza de lectura (Yokogawa Electric Inc, Japón). Un microscopio de fuerza atómica Bioscope SZ (Veeco Instruments Inc, Santa Barbara, CA) está montado en la parte superior del microscopio invertido óptic...

<ol>
	<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. 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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=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. 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Adherencias citoesqueleto 07.10 y focal 11-16 son estructuras dinámicas que reúnen, se dispersan y vuelta como las células migran o responder a la fuerza mecánica 17. Tienen funciones importantes en la regulación del crecimiento celular, la supervivencia, y la expresión génica. Conocer su distribución específica y la dinámica proporciona una mejor comprensión de cómo se comunican las células con la matriz y entre ellos. Este sistema nuevo microsc...

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		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</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

Para entender el mecanismo por el cual las células vivas sentido las fuerzas mecánicas, y cómo responden y se adaptan a su medio ambiente, una nueva tecnología capaz de investigar el comportamiento de las células a nivel subcelular con alta resolución espacial y temporal se ha desarrollado. Por lo tanto, un microscopio de fuerza atómica (AFM) se integró con la reflexión total interna de fluorescencia (TIRF) microscopía y el disco de giro rápido (FSD) microscopía confocal. El sistema integrado es ampliamente aplicable a través de una amplia gama de estudios moleculares dinámicos en cualquier célula viva adherente, permitiendo una imagen óptica directa de las respuestas celulares a la estimulación mecánica en tiempo real. Reorganización significativa de los filamentos de actina y adhesiones focales se demostró debido a la estimulación mecánica local en la superficie celular apical que los cambios inducidos en la estructura celular en todo el cuerpo celular. Estas técnicas innovadoras que proporcionan nueva información para la comprensión de la reestructuración de células vivas y dinámicas, en respuesta a una fuerza mecánica. Un protocolo detallado y un conjunto de datos representativos que muestran la respuesta de células vivas a la estimulación mecánica se presentan.

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

Este documento tiene como objetivo instruir al lector en la operación de una fuerza integrada atómica microscopio óptico de imagen para la estimulación mecánica de las células vivas en la cultura. Un protocolo de paso a paso se presenta. Un conjunto representativo de datos que muestra la respuesta de células vivas a la estimulación mecánica se presenta.

Respuesta de células vivas a la estimulación mecánica estudiados por microscopía óptica integrada la Fuerza Atómica y

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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