Name: preparation of pancreatic acinar cells for the purpose of calcium imaging, cell injury measurements, and adenoviral infection
Uploaded: 2013-07-05T12:00:00
Description: Watch this Scientific Journal Video about Preparation of Pancreatic Acinar Cells for the Purpose of Calcium Imaging, Cell Injury Measurements, and Adenoviral Infection at JoVE.com

Esta labor fue apoyada por los Institutos Nacionales de Salud de subvención DK083327 y DK093491 (a SZH).

1. Preparación de las células acinares pancreáticas de Imagen de calcio <ol><li> Preparar HEPES tampón de incubación que contiene 20 mM de HEPES, 95 mM NaCl, 4,7 mM KCl, 0,6 mM de MgCl 2, 1,3 mM de CaCl2, 10 mM de glucosa, 2 mM de glutamina, y 1 × aminoácidos no esenciales del medio mínimo de Eagle. Ajustar la solución final a pH 7,4 con NaOH. </li><li> Preparar un tampón de incubación de BSA mediante la adición de BSA (1% w / v final) a 25 ml de HEPES el tampón de incubación (descr...

<ol>
	<li>Toescu, E. C., Lawrie, A. M., Petersen, O. H., Gallacher, D. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Spatial+and+temporal+distribution+of+agonist-evoked+cytoplasmic+Ca2++signals+in+exocrine+acinar+cells+analysed+by+digital+image+microscopy.">Spatial and temporal distribution of agonist-evoked cytoplasmic Ca2+ signals in exocrine acinar cells analysed by digital image microscopy.</a> Embo J. 11, 1623-1629 (1992).</li><li>Ito, K., Miyashita, Y., Kasai, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Micromolar+and+submicromolar+Ca2++spikes+regulating+distinct+cellular+functions+in+pancreatic+acinar+cells.">Micromolar and submicromolar Ca2+ spikes regulating distinct cellular functions in pancreatic acinar cells.</a> Embo J. 16, 242-251 (1997).</li><li>Husain, S. Z., 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=The+ryanodine+receptor+mediates+early+zymogen+activation+in+pancreatitis.">The ryanodine receptor mediates early zymogen activation in pancreatitis.</a> Proc. Natl. Acad. Sci. U.S.A. 102, 14386-14391 (2005).</li><li>Raraty, 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=Calcium-dependent+enzyme+activation+and+vacuole+formation+in+the+apical+granular+region+of+pancreatic+acinar+cells.">Calcium-dependent enzyme activation and vacuole formation in the apical granular region of pancreatic acinar cells.</a> Proc. Natl. Acad. Sci. U.S.A. 97, 13126-13131 (2000).</li><li>Orabi, A. 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=Dantrolene+mitigates+caerulein-induced+pancreatitis+in+vivo+in+mice.">Dantrolene mitigates caerulein-induced pancreatitis in vivo in mice.</a> Am. J. Physiol. Gastrointest. Liver Physiol. 299, G196-G204 (2009).</li><li>Shah, A. U., 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=Protease+Activation+during+in+vivo+Pancreatitis+is+Dependent+upon+Calcineurin+Activation.">Protease Activation during in vivo Pancreatitis is Dependent upon Calcineurin Activation.</a> Am. J. Physiol. Gastrointest. Liver Physiol. , (2009).</li><li>Muili, K. 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=Pharmacologic+and+genetic+inhibition+of+calcineurin+protects+against+carbachol-induced+pathologic+zymogen+activation+and+acinar+cell+injury.">Pharmacologic and genetic inhibition of calcineurin protects against carbachol-induced pathologic zymogen activation and acinar cell injury.</a> Am. J. Physiol. Gastrointest. Liver Physiol. , (2012).</li><li>Orabi, A. 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=Ethanol+enhances+carbachol-induced+protease+activation+and+accelerates+Ca2++waves+in+isolated+rat+pancreatic+acini.">Ethanol enhances carbachol-induced protease activation and accelerates Ca2+ waves in isolated rat pancreatic acini.</a> J. Biol. Chem. 286, 14090-14097 (2011).</li><li>Nathanson, M. H., Padfield, P. J., O'Sullivan, A. J., Burgstahler, A. D., Jamieson, J. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanism+of+Ca2++wave+propagation+in+pancreatic+acinar+cells.">Mechanism of Ca2+ wave propagation in pancreatic acinar cells.</a> J. Biol. Chem. 267, 18118-18121 (1992).</li><li>Reed, A. 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=Low+extracellular+pH+induces+damage+in+the+pancreatic+acinar+cell+by+enhancing+calcium+signaling.">Low extracellular pH induces damage in the pancreatic acinar cell by enhancing calcium signaling.</a> J. Biol. Chem. 286, 1919-1926 (2011).</li><li>Amsterdam, A., Jamieson, J. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Structural+and+functional+characterization+of+isolated+pancreatic+exocrine+cells.">Structural and functional characterization of isolated pancreatic exocrine cells.</a> Proc. Natl. Acad. Sci. U.S.A. 69, 3028-3032 (1972).</li><li>Van Acker, G. 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=Tumor+progression+locus-2+is+a+critical+regulator+of+pancreatic+and+lung+inflammation+during+acute+pancreatitis.">Tumor progression locus-2 is a critical regulator of pancreatic and lung inflammation during acute pancreatitis.</a> J. Biol. Chem. 282, 22140-22149 (2007).</li><li>Ito, K., Miyashita, Y., Kasai, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Kinetic+control+of+multiple+forms+of+Ca(2+)+spikes+by+inositol+trisphosphate+in+pancreatic+acinar+cells.">Kinetic control of multiple forms of Ca(2+) spikes by inositol trisphosphate in pancreatic acinar cells.</a> J. Cell Biol. 146, 405-413 (1999).</li><li>Leite, M. F., Burgstahler, A. D., Nathanson, M. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ca2++waves+require+sequential+activation+of+inositol+trisphosphate+receptors+and+ryanodine+receptors+in+pancreatic+acini.">Ca2+ waves require sequential activation of inositol trisphosphate receptors and ryanodine receptors in pancreatic acini.</a> Gastroenterology. 122, 415-427 (2002).</li><li>Paredes, R. M., Etzler, J. C., Watts, L. T., Zheng, W., Lechleiter, J. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Chemical+calcium+indicators.">Chemical calcium indicators.</a> Methods. 46, 143-151 (2008).</li><li>Schild, D., Jung, A., Schultens, H. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Localization+of+calcium+entry+through+calcium+channels+in+olfactory+receptor+neurones+using+a+laser+scanning+microscope+and+the+calcium+indicator+dyes+Fluo-3+and+Fura-Red.">Localization of calcium entry through calcium channels in olfactory receptor neurones using a laser scanning microscope and the calcium indicator dyes Fluo-3 and Fura-Red.</a> Cell Calcium. 15, 341-348 (1994).</li><li>Saluja, A. 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=Secretagogue-induced+digestive+enzyme+activation+and+cell+injury+in+rat+pancreatic+acini.">Secretagogue-induced digestive enzyme activation and cell injury in rat pancreatic acini.</a> Am. J. Physiol. 276, 835-842 (1999).</li><li>Husain, S. Z., 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=Ryanodine+receptors+contribute+to+bile+acid-induced+pathological+calcium+signaling+and+pancreatitis+in+mice.">Ryanodine receptors contribute to bile acid-induced pathological calcium signaling and pancreatitis in mice.</a> Am. J. Physiol. Gastrointest. Liver Physiol. , (2012).</li><li>Gurda, G. T., Guo, L., Lee, S. H., Molkentin, J. D., Williams, J. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cholecystokinin+activates+pancreatic+calcineurin-NFAT+signaling+in+vitro+and+in+vivo.">Cholecystokinin activates pancreatic calcineurin-NFAT signaling in vitro and in vivo.</a> Mol. Biol. Cell. 19, 198-206 (2008).</li></ol>

El método de aislamiento de células y ensayos posteriores representadas aquí representan poderosas herramientas con las que estudian las características fisiológicas y fisiopatológicas del páncreas exocrino. El método para aislar células acinares pancreáticas dispersos fue descrita por primera vez por Amsterdam y Jamieson en 1972 11. Los métodos que aquí se presentan han sido adaptados de los métodos de aislamiento más recientes descritos por Van Acker et al 12. Aunque estas técnicas...

Los cambios dinámicos en el calcio citosólico son necesarios para los eventos de células acinares tanto fisiológicas como patológicas. Estos efectos divergentes de calcio se cree que son el resultado de diferentes patrones espaciales y temporales de calcio de señalización 1. Por ejemplo, la enzima y la secreción de fluidos a partir de las células acinares están vinculados a los picos de calcio a partir de una región restringida del polo apical donde la secreción tiene lugar 2. En contraste, una onda de calcio mundial seguido de intensas señales de calcio no oscilatorios se asocia con eventos patológicos tempranos que conducen a la pancreatitis aguda 3,4. Estos incluyen la activación intra-acinar proteasa, la secreción de enzimas reducida y daño celular acinar. Nuestro laboratorio utiliza acinos pancreáticos aislados para estudiar estos eventos patológicos tempranos que conducen a la enfermedad tanto in vivo como in vitro 5-7. Los métodos detallados siguientes describen el aislamiento de las células acinares primarias para el propósito de medir CYtosolic los niveles de calcio y el daño celular. Un método para la infección adenoviral de estas células también se proporciona.

<table border="1">
 <tbody>
 <tr>
 <td>Name</td>
 <td>Company</td>
 <td>Catalogue Number</td>
 <td>Comments</td>
 </tr>
 <tr>
 <td>Mice</td>
 <td>NCI</td>
 <td>N/A</td>
 <td>Male 20-30 grams; virtually any strain should yield comparable results.</td>
 </tr>
 <tr>
 <td>HEPES</td>
 <td>American Bioanalytical</td>
 <td>AB00892</td>
 <td></td>
 </tr>
 <tr>
 <td>Sodium Chloride</td>
 <td>J.T. Baker</td>
 <td>3624-05</td>
 <td></td>
 </tr>
 <tr>
 <td>Potassium Chloride</td>
 <td>J.T. Baker</td>
 <td>3040-01</td>
 <td></td>
 </tr>
 <tr>
 <td>Magnesium Chloride</td>
 <td>Sigma</td>
 <td>M-8266</td>
 <td></td>
 </tr>
 <tr>
 <td>Calcium Chloride</td>
 <td>Fischer</td>
 <td>C79</td>
 <td></td>
 </tr>
 <tr>
 <td>Dextrose</td>
 <td>J.T. Baker</td>
 <td>1916-01</td>
 <td></td>
 </tr>
 <tr>
 <td>L-Glutamine</td>
 <td>Sigma</td>
 <td>G-8540</td>
 <td></td>
 </tr>
 <tr>
 <td>1X minimum Eagle's medium non-essential amino acid mixture</td>
 <td>Gibco</td>
 <td>11140-050</td>
 <td></td>
 </tr>
 <tr>
 <td>Sodium Hydroxide</td>
 <td>EM</td>
 <td>SX0593</td>
 <td></td>
 </tr>
 <tr>
 <td>Bovine Serum Albumin</td>
 <td>Sigma</td>
 <td>A7906</td>
 <td></td>
 </tr>
 <tr>
 <td>Collagenase</td>
 <td>Worthington</td>
 <td>4188</td>
 <td></td>
 </tr>
 <tr>
 <td>Soybean Trypsin Inhibitor</td>
 <td>Sigma</td>
 <td>T-9003</td>
 <td></td>
 </tr>
 <tr>
 <td>Carbon Dioxide</td>
 <td>Matheson Gas</td>
 <td> 124-38-9 </td>
 <td></td>
 </tr>
 <tr>
 <td>125 ml Erlenmeyer plastic flask</td>
 <td>Crystalgen </td>
 <td>26-0005</td>
 <td></td>
 </tr>
 <tr>
 <td>Dissection kit</td>
 <td>Fine Science Tools</td>
 <td>14161-10</td>
 <td></td>
 </tr>
 <tr>
 <td>70% Ethanol</td>
 <td>LabChem</td>
 <td>LC222102</td>
 <td></td>
 </tr>
 <tr>
 <td>P1000, P100, P10 pipettes</td>
 <td>Gilson</td>
 <td>FA10005P</td>
 <td></td>
 </tr>
 <tr>
 <td>Weighing boat</td>
 <td>Heathrow Scientific</td>
 <td>HS1420A</td>
 <td></td>
 </tr>
 <tr>
 <td>Plastic transfer pipettes</td>
 <td>USA Scientific</td>
 <td>1020-2500</td>
 <td></td>
 </tr>
 <tr>
 <td>15 ml conical tubes</td>
 <td>BD Falcon</td>
 <td>352095</td>
 <td></td>
 </tr>
 <tr>
 <td>50 ml conical tubes</td>
 <td>BD Falcon</td>
 <td>352070</td>
 <td></td>
 </tr>
 <tr>
 <td>1.5 ml micro-centrifuge tube</td>
 <td>Fisher</td>
 <td>05-408-129</td>
 <td></td>
 </tr>
 <tr>
 <td>0.65 ml micro-centrifuge tube</td>
 <td>VWR</td>
 <td>20170-293</td>
 <td></td>
 </tr>
 <tr>
 <td>22 x 22 mm glass coverslips</td>
 <td>Fisher</td>
 <td>032811-9</td>
 <td></td>
 </tr>
 <tr>
 <td>Nitric Acid</td>
 <td>Fischer</td>
 <td>A483-212</td>
 <td></td>
 </tr>
 <tr>
 <td>Hydrochloric Acid</td>
 <td>Fischer</td>
 <td>A142-212</td>
 <td></td>
 </tr>
 <tr>
 <td>Deionized water</td>
 <td>N/A</td>
 <td>N/A</td>
 <td></td>
 </tr>
 <tr>
 <td>18 x 18 mm coverslips</td>
 <td>Fischer</td>
 <td>021510-9</td>
 <td></td>
 </tr>
 <tr>
 <td>Laboratory film</td>
 <td>Parafilm</td>
 <td>PM-996</td>
 <td></td>
 </tr>
 <tr>
 <td>Fluo-4AM</td>
 <td>Invitrogen</td>
 <td>F14201</td>
 <td></td>
 </tr>
 <tr>
 <td>Dimethylsulfoxide</td>
 <td>Sigma</td>
 <td>D2650</td>
 <td></td>
 </tr>
 <tr>
 <td>Luer lock</td>
 <td>Becton Dickinson</td>
 <td>932777</td>
 <td></td>
 </tr>
 <tr>
 <td>60 ml syringe</td>
 <td>BD Bioscience</td>
 <td>DG567805</td>
 <td></td>
 </tr>
 <tr>
 <td>23 &frac34; gauge needle</td>
 <td>BD Bioscience</td>
 <td>9328270</td>
 <td></td>
 </tr>
 <tr>
 <td>PE50 tubing</td>
 <td>Clay Adam</td>
 <td>PE50-427411</td>
 <td></td>
 </tr>
 <tr>
 <td>Flat head screwdriver </td>
 <td>N/A</td>
 <td>N/A</td>
 <td></td>
 </tr>
 <tr>
 <td>DMEM F-12, no Phenol Red</td>
 <td>Gibco</td>
 <td>21041-025 </td>
 <td></td>
 </tr>
 <tr>
 <td>30.5 gauge needle</td>
 <td>BD Bioscience</td>
 <td>305106</td>
 <td></td>
 </tr>
 <tr>
 <td>5 CC syringe</td>
 <td>BD Bioscience</td>
 <td>309603</td>
 <td></td>
 </tr>
 <tr>
 <td>25 ml Erlenmeyer flask</td>
 <td>Fischer</td>
 <td>FB50025</td>
 <td></td>
 </tr>
 <tr>
 <td>Nylon mesh filter </td>
 <td>Nitex</td>
 <td>03-150/38</td>
 <td>150 &mu;m pore size</td>
 </tr>
 <tr>
 <td>48 well tissue culture plate</td>
 <td>Costar</td>
 <td>3548</td>
 <td></td>
 </tr>
 <tr>
 <td>96 well tissue culture plate </td>
 <td>Costar</td>
 <td>3795</td>
 <td></td>
 </tr>
 <tr>
 <td>6 well tissue culture plate</td>
 <td>Costar</td>
 <td>3506</td>
 <td></td>
 </tr>
 <tr>
 <td>Liquid nitrogen</td>
 <td>Matheson Gas</td>
 <td>7727-37-9</td>
 <td></td>
 </tr>
 <tr>
 <td>Cytotoxicity assay kit</td>
 <td>Promega</td>
 <td>G1782</td>
 <td></td>
 </tr>
 <tr>
 <td>Adeno-GFP</td>
 <td>N/A</td>
 <td>N/A</td>
 <td>Gift from J. Williams</td>
 </tr>
 <tr>
 <td></td>
 <td></td>
 <td></td>
 <td>Equipment</td>
 </tr>
 <tr>
 <td>Ring stand with clamps</td>
 <td>United Scientific</td>
 <td>SET462</td>
 <td></td>
 </tr>
 <tr>
 <td>Perifusion chamber</td>
 <td>N/A</td>
 <td>N/A</td>
 <td>Designed by S.Z.H and colleagues at Yale University</td>
 </tr>
 <tr>
 <td>Vacuum line</td>
 <td>Manostat</td>
 <td>72-100-000</td>
 <td></td>
 </tr>
 <tr>
 <td>Water bath with shaker</td>
 <td>Precision Scientific</td>
 <td>51220076</td>
 <td></td>
 </tr>
 <tr>
 <td>Confocal microscope</td>
 <td>Zeiss</td>
 <td>LSM 710</td>
 <td></td>
 </tr>
 <tr>
 <td>BioTek Synergy H1 plate reader</td>
 <td>BioTek</td>
 <td>11-120-534</td>
 <td></td>
 </tr>
 <tr>
 <td>Tissue culture hood</td>
 <td>Nuaire</td>
 <td>NU-425-600</td>
 <td></td>
 </tr>
 <tr>
 <td>Tissue culture Incubator</td>
 <td>Thermo</td>
 <td>3110</td>
 <td></td>
 </tr>
 </tbody>
</table>

preparation of pancreatic acinar cells for the purpose of calcium imaging, cell injury measurements, and adenoviral infection

La célula acinar pancreática es la principal de células de parénquima del páncreas exocrino y desempeña un papel principal en la secreción de enzimas pancreáticas en el conducto pancreático. También es el sitio para la iniciación de la pancreatitis. A continuación se describe cómo se aíslan las células acinares del tejido pancreático conjunto y señales intracelulares de calcio se miden. Además, se describen las técnicas de transfección de estas células con las construcciones adenovirales, y, posteriormente, la medición de la fuga de lactato deshidrogenasa, un marcador de la lesión de las células, en condiciones que inducen la lesión de las células acinares in vitro. Estas técnicas proporcionan una poderosa herramienta para caracterizar la fisiología y la patología de células acinares.

Un ejemplo de las mediciones del calcio de células acinares en respuesta a estímulos fisiológicos se proporciona en la Figura 3. Las células acinares se cargaron con el colorante de calcio Fluo-4 y se perfundieron con el análogo de acetilcolina carbacol (CCh; 1 M)) 8. Las células respondieron en la forma de una onda de calcio que se inicia en la región apical y se propaga a la región basolateral 3,9. Trazados representativos se muestran en la Figura 3B mues...

Watch this Scientific Journal Video about Preparation of Pancreatic Acinar Cells for the Purpose of Calcium Imaging, Cell Injury Measurements, and Adenoviral Infection at JoVE.com

Preparation of Pancreatic Acinar Cells for the Purpose of Calcium Imaging, Cell Injury Measurements, and Adenoviral Infection

Se describe un método reproducible de la preparación de las células acinares pancreáticas de ratón de un ratón con el fin de examinar las señales de calcio de células acinares y el daño celular con estímulos fisiológica y patológicamente relevantes. Un método para la infección adenoviral de estas células también se proporciona.

Preparación de las células acinares pancreáticas para los fines de Imagen de calcio, Lesiones Medidas Celulares e infección viral

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