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

Detta arbete stöddes av en National Institutes of Health Grant DK083327 och DK093491 (till SZH).

Ett. Förbereda bukspottkörtel Acinar för Kalcium Imaging <ol><li> Förbered HEPES inkubationsbuffert innehållande 20 mM HEPES, 95 mM NaCl, 4,7 mM KCl, 0,6 mM MgCl2, 1,3 mM CaCl2, 10 mM glukos, 2 mM glutamin och 1 × minsta Eagles medium icke-essentiella aminosyror. Justera den slutliga lösningen till pH 7,4 med NaOH. </li><li> Förbered en BSA inkubationsbuffert genom tillsats av BSA (1% vikt / volym slutlig) till 25 ml av HEPES inkubationsbufferten (beskriven ovan). </li><li> Förbered en b...

<ol>
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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. 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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>

Den cellisolering metod och efterföljande analyser skildras här utgör kraftfulla verktyg som man kan studera de fysiologiska och patofysiologiska funktioner i exokrina pankreas. Den metod för att isolera dispergerade bukspottkörtel acinar beskrevs först av Amsterdam och Jamieson 1972 11. De metoder som presenteras här har anpassats senare isolering metoder som beskrivs av Van Acker och kollegor 12. Även om dessa tekniker är mycket reproducerbar och lättlärd, finns det flera viktiga funkt...

Dynamiska förändringar i cytosoliskt kalcium är nödvändigt för både fysiologiska och patologiska händelser körtelcell. Dessa divergerande konsekvenser av kalcium tros bero på olika rumsliga och tidsmässiga mönster kalcium signalering 1. Till exempel är enzymet och vätskeutsöndring från körtelcell kopplad till kalcium spikar från en begränsad region av apikala polen där utsöndring äger rum 2. Däremot är en global kalcium våg följs av intensiva icke-oscillerande kalcium signaler i samband med tidiga patologiska händelser som leder till akut pankreatit 3,4. Dessa inkluderar intra-acinar proteasaktivering, reducerad enzym sekretion, och körtelcell skada. Vårt labb använder isolerade pankreaskörtelgång att studera dessa tidiga patologiska händelser som leder till sjukdomen både in vivo och in vitro 5-7. De metoder som beskrivs här beskriver isolering av primära körtelceller i syfte att mäta cytosolic kalciumnivåer och cellskada. En metod för adenoviral infektion av dessa celler finns också.

<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

Den bukspottkörtel körtelcell är den viktigaste parenkymala cellen i exokrina pankreas och spelar en central roll i utsöndringen av pankreasenzymer i bukspottkörtelns kanalen. Det är också platsen för inledandet av pankreatit. Här beskriver vi hur acinar celler isoleras från hela pankreas vävnad och intracellulära signaler kalcium mäts. Dessutom beskriver vi de metoder för transfektering av dessa celler med adenovirala konstruktioner, och därefter mäta läckage av laktatdehydrogenas, en markör för cellskada, under betingelser som inducerar skada acinar cell in vitro. Dessa tekniker ger ett kraftfullt verktyg för att karakterisera körtelcell fysiologi och patologi.

Ett exempel på mätningar acinar cell kalcium som svar på fysiologiska stimuli ges i figur 3. Körtelceller laddades med kalcium färgämnet Fluo-4 och genomströmmas med acetylkolin analog karbakol (CCh, 1 M)) 8. Celler reagerade i form av ett kalcium våg som initierar i apikala regionen och propagerar för basolateral regionen 3,9. Representativa kurvor visas i figur 3b visar den typiska topp-platån mönster vanligen observeras med 1 ^ M karbakol. Omvänt, me...

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

Vi beskriver en reproducerbar metod för framställning av musceller bukspottkörtel acinar från en mus för att undersöka acinar signaler cellkalcium och cellulär skada med fysiologiskt och patologiskt relevanta stimuli. En metod för adenoviral infektion av dessa celler finns också.

Beredning av celler i bukspottkörteln Acinar för att Kalcium Imaging, Cell Mått skada och Adenoviral Infektion

The pancreatic acinar  cell is the main parenchymal cell of the exocrine pancreas and plays a primary  role in the secretion of pancreatic enzymes into ...

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