Name: an immunofluorescent method for characterization of barrett&#8217;s esophagus cells
Uploaded: 2014-07-20T15:00:00
Description: Watch this Scientific Journal Video about An Immunofluorescent Method for Characterization of BarrettÃ¢â‚¬â„¢s Esophagus Cells at JoVE.com

Dette arbejde blev støttet af tilskud fra St Josephs Foundation (AJF, Lji) og American Lung Association, RG-224.607-N (Lji).

1. Cellelinje Vedligeholdelse <ol><li> Immortaliseret human BE high-grade dysplastiske (CP-B, CP-C, CP-D) og metaplastisk (CP-A) cellelinier ved stabil transfektion af den humane telomerase-revers transkriptase (TERT)-protein 11. </li><li> Oprethold BE cellelinjer i keratinocyt medier suppleret med ekstrakt fra bovin hypofyse (BPE), epidermal vækstfaktor (EGF), 5% føtalt bovint serum (FBS), ikke-essentielle aminosyrer (NEAA), penicillin-streptomycin-neomycin (PSN), og standard væv dyrkningsbetingelser (3...

<ol>
	<li>Reid, B. J., Li, X., Galipeau, P. C., Vaughan, T. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Barrett's+oesophagus+and+oesophageal+adenocarcinoma:+time+for+a+new+synthesis.">Barrett's oesophagus and oesophageal adenocarcinoma: time for a new synthesis.</a> Nat. Rev. Cancer. 10, 87-101 (2010).</li><li>Hayeck, T. J., Kong, C. Y., Spechler, S. J., Gazelle, G. S., Hur, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+prevalence+of+Barrett's+esophagus+in+the+US:+estimates+from+a+simulation+model+confirmed+by+SEER+data.">The prevalence of Barrett's esophagus in the US: estimates from a simulation model confirmed by SEER data.</a> Dis. Esophagus. 23, 451-457 (2010).</li><li>Brown, L. M., Devesa, S. S., Chow, W. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Incidence+of+adenocarcinoma+of+the+esophagus+among+white+Americans+by+sex,+stage,+and+age.">Incidence of adenocarcinoma of the esophagus among white Americans by sex, stage, and age.</a> J. Natl. Cancer Inst. 100, 1184-1187 (2008).</li><li>Konturek, P. C., Burnat, G., Hahn, E. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Inhibition+of+Barret's+adenocarcinoma+cell+growth+by+simvastatin:+involvement+of+COX-2+and+apoptosis-related+proteins.">Inhibition of Barret's adenocarcinoma cell growth by simvastatin: involvement of COX-2 and apoptosis-related proteins.</a> J. Physiol. Pharmacol. 58 Suppl 3, 141-148 (2007).</li><li>Peng, D., 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=Glutathione+peroxidase+7+protects+against+oxidative+DNA+damage+in+oesophageal+cells.">Glutathione peroxidase 7 protects against oxidative DNA damage in oesophageal cells.</a> Gut. 61, 1250-1260 (2012).</li><li>Vona-Davis, L., 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=MAPK+and+PI3K+inhibition+reduces+proliferation+of+Barrett's+adenocarcinoma+in+vitro.">MAPK and PI3K inhibition reduces proliferation of Barrett's adenocarcinoma in vitro.</a> Surg. Res. 127, 53-58 (2005).</li><li>Inge, L. 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=a+small+molecule+inhibitor+of+the+Src+kinase,+reduces+the+growth+and+activates+apoptosis+in+pre-neoplastic+Barrett's+esophagus+cell+lines:+evidence+for+a+noninvasive+treatment+of+high-grade+dysplasia.">a small molecule inhibitor of the Src kinase, reduces the growth and activates apoptosis in pre-neoplastic Barrett's esophagus cell lines: evidence for a noninvasive treatment of high-grade dysplasia.</a> Thoracic Cardiovasc. Surg. 145, 531-538 (2013).</li><li>Jovov, B., 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=Ion+transport+and+barrier+function+in+a+telomerase-immortalized+human+nondysplastic,+Barrett's+cell+line+(BAR-T).">Ion transport and barrier function in a telomerase-immortalized human nondysplastic, Barrett's cell line (BAR-T).</a> Dis. Esophagus. 22, 386-395 (2009).</li><li>Merlo, L. M., Kosoff, R. E., Gardiner, K. L., Maley, C. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+in+vitro+co-culture+model+of+esophageal+cells+identifies+ascorbic+acid+as+a+modulator+of+cell+competition.">An in vitro co-culture model of esophageal cells identifies ascorbic acid as a modulator of cell competition.</a> BMC Cancer. 11, 461 (2011).</li><li>Zhang, H. Y., Hormi-Carver, K., Zhang, X., Spechler, S. J., Souza, R. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+benign+Barrett's+epithelial+cells,+acid+exposure+generates+reactive+oxygen+species+that+cause+DNA+double-strand+breaks.">In benign Barrett's epithelial cells, acid exposure generates reactive oxygen species that cause DNA double-strand breaks.</a> Cancer Res. 69, 9083-9089 (2009).</li><li>Palanca-Wessels, M. C. 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=Extended+lifespan+of+Barrett's+esophagus+epithelium+transduced+with+the+human+telomerase+catalytic+subunit:+a+useful+in+vitro+model.">Extended lifespan of Barrett's esophagus epithelium transduced with the human telomerase catalytic subunit: a useful in vitro model.</a> Carcinogenesis. 24, 1183-1190 (2003).</li><li>Kumble, S., Omary, M. B., Cartwright, C. A., Triadafilopoulos, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Src+activation+in+malignant+and+premalignant+epithelia+of+Barrett's+esophagus.">Src activation in malignant and premalignant epithelia of Barrett's esophagus.</a> Gastroenterology. 112, 348-356 (1997).</li><li>Inge, L. 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=alpha-Catenin+overrides+Src-dependent+activation+of+beta-catenin+oncogenic+signaling.">alpha-Catenin overrides Src-dependent activation of beta-catenin oncogenic signaling.</a> Mol. Cancer Ther. 7, 1386-1397 (2008).</li><li>Coluccia, A. M. L., 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=SKI-606+Decreases+Growth+and+Motility+of+Colorectal+Cancer+Cells+by+Preventing+pp60(c-Src)-Dependent+Tyrosine+Phosphorylation+of+&#946;-Catenin+and+Its+Nuclear+Signaling.">SKI-606 Decreases Growth and Motility of Colorectal Cancer Cells by Preventing pp60(c-Src)-Dependent Tyrosine Phosphorylation of &#946;-Catenin and Its Nuclear Signaling.</a> Cancer Res. 66, 2279-2286 (2006).</li><li>Nam, J. -. S., Ino, Y., Sakamoto, M., Hirohashi, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Src+Family+Kinase+Inhibitor+PP2+Restores+the+E-Cadherin/Catenin+Cell+Adhesion+System+in+Human+Cancer+Cells+and+Reduces+Cancer+Metastasis.">Src Family Kinase Inhibitor PP2 Restores the E-Cadherin/Catenin Cell Adhesion System in Human Cancer Cells and Reduces Cancer Metastasis.</a> Clin. Cancer Res. 8, 2430-2436 (2002).</li><li>Chu, 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=p27+phosphorylation+by+Src+regulates+inhibition+of+cyclin+E-Cdk2.">p27 phosphorylation by Src regulates inhibition of cyclin E-Cdk2.</a> Cell. 128, 281-294 (2007).</li><li>Inge, L. 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=Soluble+E-cadherin+promotes+cell+survival+by+activating+epidermal+growth+factor+receptor.">Soluble E-cadherin promotes cell survival by activating epidermal growth factor receptor.</a> Exp. Res. 317, 838-848 (2011).</li><li>Gan, Y., 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+roles+of+ERK+and+Akt+pathways+in+regulation+of+EGFR-mediated+signaling+and+motility+in+prostate+cancer+cells.">Differential roles of ERK and Akt pathways in regulation of EGFR-mediated signaling and motility in prostate cancer cells.</a> Oncogene. 29, 4947-4958 (2010).</li></ol>

Vi har skitseret en metode til anvendelse af IF af BE celler mod at belyse de fysiologiske effekter af målrettede behandlinger på disse celler. Mens vi har beskrevet brugen af disse procedurer i retning BE celler, har vi fundet, at disse metoder gælder også for en række forskellige celletyper 13,17,18. Endvidere kan disse procedurer ændres på flere måder for at optimere farvning for specifikke mål. Vi finder en parameter, der har en direkte virkning på ordentlig IF er va...

Barretts øsofagus (BE) er en metaplastisk ændring i den normale pladeepitel i spiserøret og en konsekvens af kronisk eksponering for maveindholdet følge af gastroøsofageal refluks sygdom (GERD) 1.. BE menes at være en beskyttende mekanisme som svar på GERD, men tilstedeværelsen af BE bibringer en øget risiko for esophageal adenocarcinom (EAC), en sygdom, som medfører signifikant ringe overlevelse 1. Aktuelle skøn tyder på, at op til 5,6% af den amerikanske befolkning har BE, men som BE er ofte asymptomatisk, menes det, at størstedelen af BE forbliver udiagnosticeret 2. Da forekomst af både Gerd og ØK har oplevet fortsat vækst 3, er det blevet vigtigt at forstå de molekylære mekanismer involveret i udviklingen af BE til ØK, især da disse oplysninger kunne potentielt give terapeutiske tilgange til forebyggelse af progression af BE til ØK. 1. Kronisk betændelse, skade, og genotoksisk skade som følge af langvarig udsættelse for maveindhold lægge selektivt pres på BE læsion fremme neoplastisk progression til ØK. En række genetiske ændringer er blevet identificeret i løbet af BE til ØK progression. Men på trods af dette er der en udpræget mangel på forståelse for de præcise ændringer i celle signalering og efterfølgende virkninger på celle struktur og funktion. Udødeliggjort i vitro cellelinjer er nyttige værktøjer til at studere effekterne af celle signalering, især i at undersøge effekten af målrettede terapeutiske forbindelser. Den seneste kommercielle tilgængelighed af udødeliggjorte BE cellelinjer giver mulighed for sådanne undersøgelser. Selv high-throughput assays, såsom de udbredte levedygtighed assays, kan være værdifulde i at vurdere virkningerne af målrettede behandlinger upon celledeling og survival 4-6, disse analyser er ikke nyttigt for afhører virkningerne af cellesignalering upon celle morfologi. Immunfluorescensfarvning (IF) er en nyttig teknik til at undersøge effekten af ​​målrettede behandlinger upon de morfologiske, vækst og overlevelse karakteristika af celler og de proteiner, der er involveret. Vores laboratorium har tilpasset disse metoder mod udødeliggjort BE cellelinjer, ved hjælp af IF at evaluere effekten af en klinisk tilgængelig lægemiddel på BE cellelinjer i håb om at afgrænse en mulig chemopreventative behandling og biomarkør for narkotikabehandling 7. Tilsvarende anvendelse af disse teknikker i ØK, BE og udødeliggjorte esophageal cellelinjer har afgrænset kritiske resultater vedrørende BE til ØK progression 8-10. Vi finder IF analyse af BE celler behandlet med målrettede behandlinger har værdi, der giver mulighed for karakterisering af ændringerne i cellestruktur og protein lokalisering. Her præsenterer vi vores metoder til IF af udødeliggjorte BE celler til characterize medicinsk behandling.

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	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:295px;">Name of the Material/Equipment</td>
			<td style="width:116px;">Company</td>
			<td style="width:108px;">Catalog Number</td>
			<td style="width:224px;">Comments/ Description (optional)</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">CP-A (Metaplastic Cell Line)</td>
			<td>ATCC</td>
			<td>CRL-4027</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">CP-B (High-grade Dysplastic Cell Line)</td>
			<td>ATCC</td>
			<td>CRL-4028</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">CP-C (High-grade Dysplastic Cell Line)</td>
			<td>ATCC</td>
			<td>CRL-4029</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">CP-D (High-grade Dysplastic Cell Line)</td>
			<td>ATCC</td>
			<td>CRL-4030</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Keratinocyte-SFM (1X), Liquid</td>
			<td>Life Technologies</td>
			<td>17005-042</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">0.25% Trypsin-EDTA (1X), Phenol Red&#160;</td>
			<td>Life Technologies</td>
			<td>25200056</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Fetal Bovine Serum, Qualified, HI</td>
			<td>Life Technologies</td>
			<td>10438026</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">PSN ANTIBIOTIC MIXTURE</td>
			<td>Life Technologies</td>
			<td>15640</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">PBS - Phosphate-Buffered Saline</td>
			<td>Life Technologies</td>
			<td>10010049</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Pro-long Gold Antifade Reagent with DAPI&#160;</td>
			<td>Life Technologies</td>
			<td>P36931</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Circular Glass Coverslip 18mm</td>
			<td>Fisher Scientific</td>
			<td>15-183-86</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">&#946;-catenin Primary Antibody (Rabbit)</td>
			<td>Cell Signaling</td>
			<td>9562S</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Alexafluor 488 (Goat Anti-Rabbit)</td>
			<td>Life Technologies</td>
			<td>A11008</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">10cm TC treated PS dish, sterile</td>
			<td>USA Scientific</td>
			<td>CC7682-3394</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">12-well TC treated PS plate, sterile</td>
			<td>USA Scientific</td>
			<td>5666-5180</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">DMSO</td>
			<td>Sigma-Aldrich</td>
			<td>276855</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Paraformaldehyde</td>
			<td>Sigma-Aldrich</td>
			<td>P6148</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Ammonium chloride</td>
			<td>Sigma-Aldrich</td>
			<td>A9434</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Saponin</td>
			<td>Sigma-Aldrich</td>
			<td>47036</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Bovine Serum Albumin - Fraction V</td>
			<td>Sigma-Aldrich</td>
			<td>85040C</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">SKI-606 (Bosutinib)</td>
			<td>Selleck Chemicals</td>
			<td>S1014</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Square Bioassay Dish&#160;</td>
			<td>Thermo Scientific</td>
			<td>240835</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Parafilm&#160;</td>
			<td>VWR</td>
			<td>82024-546</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Disposable Pasteur Pipets, Flint Glass</td>
			<td>VWR</td>
			<td>14672-380</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Nexcelom Mini Cell Counter</td>
			<td>Nexcelom</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Cellometer Counting Chambers</td>
			<td>Nexcelom</td>
			<td>CHT4-SD100-014</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Zeiss Apotome microscope&#160;</td>
			<td>Zeiss</td>
			<td></td>
			<td></td>
		</tr>
	</tbody>
</table>

an immunofluorescent method for characterization of barrett&#8217;s esophagus cells

Esophageal adenokarcinom (EAC) har en samlet overlevelse på mindre end 17%, og forekomsten af ​​ØK er steget dramatisk i løbet af de sidste to årtier. En af de primære risikofaktorer for ØK Barretts øsofagus (BE), en metaplastisk ændring af den normale skællede esophagus reaktion på kronisk halsbrand. På trods af den veletablerede sammenhæng mellem ØK og BE, afhøring af de molekylære begivenheder, især ændrede signalveje der involverer progression af BE til ØK, er dårligt forstået. Meget af dette skyldes manglen på egnede in vitro-modeller til at studere disse sygdomme. For nylig har udødeliggjort BE cellelinjer bliver kommercielt tilgængelige giver mulighed for in vitro-undersøgelser af BE. Her præsenterer vi en metode til immunfluorescensfarvning af udødeliggjort BE cellelinjer, så in vitro karakterisering af cellesignalering og struktur efter udsættelse for terapeutiske forbindelser. Anvendelsen af ​​disse teknikker vil Help udvikle indsigt i de mekanismer, der er involveret i at BE ØK progression og give potentielle muligheder for behandling og forebyggelse af ØK.

Et eksempel på de opnåede resultater fra anvendelsen af de beskrevne procedurer er illustreret i figurerne 1A-D. Dækglas med CP-D og CP-C BE celler blev behandlet i 24 timer med 1 uM af Src familien hæmmer, SKI-606, eller vehikel (DMSO) og farves med ovennævnte procedurer for Adherens Junction og Wnt signalering protein, β -catenin. Visualisering af β-catenin blev opnået ved mærkning med et anti-kanin IgG koblet til en grøn fluorofor, mens mærkning af cellekernen blev opnået ved mærkning me...

Watch this Scientific Journal Video about An Immunofluorescent Method for Characterization of BarrettÃ¢â‚¬â„¢s Esophagus Cells at JoVE.com

An Immunofluorescent Method for Characterization of BarrettÃƒÂ¢Ã¢â€šÂ¬Ã¢â€žÂ¢s Esophagus Cells

Der er en mærkbar behov for bedre information om molekylære førere af Barretts øsofagus. Immunfluorescensfarvning er en nyttig teknik til at forstå virkningerne af cellesignalering på cellemorfologi. Vi præsenterer en enkel, effektiv protokol til anvendelse af immunfluorescensfarvning at vurdere terapeutisk behandling i Barretts øsofagus celler.

En Immunfluorescens Metode til karakterisering af Barretts øsofagus Cells

Esophageal adenocarcinoma (EAC) has an overall survival rate of less than 17% and incidence of EAC has risen dramatically over the past two decades. One ...

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Biology

An Immunofluorescent Method for Characterization of Barrett&#8217;s Esophagus Cells

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Filopodia are dynamic, finger-like cellular protrusions associated with migration and cell-cell communication. In order to better understand the complex ...

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