Name: generation of lymphocytic microparticles and detection of their proapoptotic effect on airway epithelial cells
Uploaded: 2015-02-20T15:00:00
Description: Watch this Scientific Journal Video about Generation of Lymphocytic Microparticles and Detection of their Proapoptotic Effect on Airway Epithelial Cells at JoVE.com

Questo lavoro è sostenuto da sovvenzioni dal Canadian Institutes of Health Research (178.918), Fonds de recherche en santé du Québec - Vision Health Network Research.

NOTA: Maschio C57BL / 6 topi (5-7 settimane) sono da Charles River Laboratories International, Inc. (St-Constant, Quebec, Canada.) E manipolati secondo protocolli approvati dalla Sainte-Justine Comitato Animal Care CHU. Espianti di tessuto bronchiale mouse forniscono una buona fonte di cellule epiteliali bronchiali primarie per lo studio degli effetti proapoptotici di LMPS sulle cellule epiteliali. Questo protocollo descrive la generazione in vitro di LMPS, nonché un metodo per la rilevazione di cellule epitel...

<ol>
	<li>Tushuizen, M. E., Diamant, M., Sturk, A., Nieuwland, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cell-derived+microparticles+in+the+pathogenesis+of+cardiovascular+disease:+friend+or+foe.">Cell-derived microparticles in the pathogenesis of cardiovascular disease: friend or foe.</a> Arterioscler Thromb Vasc Biol. 31 (1), 4-9 (2011).</li><li>Martinez, M. C., Tual-Chalot, S., Leonetti, D., Andriantsitohaina, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microparticles:+targets+and+tools+in+cardiovascular+disease.">Microparticles: targets and tools in cardiovascular disease.</a> Trends Pharmacol Sci. 32 (11), 659-665 (2011).</li><li>Benameur, T., Andriantsitohaina, R., Martinez, M. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Therapeutic+potential+of+plasma+membrane-derived+microparticles.">Therapeutic potential of plasma membrane-derived microparticles.</a> Pharmacol Rep. 61 (1), 49-57 (2009).</li><li>Yang, C., 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=Lymphocytic+microparticles+inhibit+angiogenesis+by+stimulating+oxidative+stress+and+negatively+regulating+VEGF-induced+pathways.">Lymphocytic microparticles inhibit angiogenesis by stimulating oxidative stress and negatively regulating VEGF-induced pathways.</a> Am J Physiol Regul Integr Comp Physiol. 294 (2), 467-476 (2008).</li><li>Yang, C., Gagnon, C., Hou, X., Hardy, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Low+density+lipoprotein+receptor+mediates+anti-VEGF+effect+of+lymphocyte+T-derived+microparticles+in+Lewis+lung+carcinoma+cells.">Low density lipoprotein receptor mediates anti-VEGF effect of lymphocyte T-derived microparticles in Lewis lung carcinoma cells.</a> Cancer Biol Ther. 10 (5), 448-456 (2010).</li><li>Angelillo-Scherrer, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Leukocyte-derived+microparticles+in+vascular+homeostasis.">Leukocyte-derived microparticles in vascular homeostasis.</a> Circ Res. 110 (2), 356-369 (2012).</li><li>Maeno, T., 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=CD8++T+Cells+are+required+for+inflammation+and+destruction+in+cigarette+smoke-induced+emphysema+in+mice.">CD8+ T Cells are required for inflammation and destruction in cigarette smoke-induced emphysema in mice.</a> J Immunol. 178 (12), 8090-8096 (2007).</li><li>Qiu, Q., Xiong, W., Yang, C., Gagnon, C., Hardy, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Lymphocyte-derived+microparticles+induce+bronchial+epithelial+cells'+pro-inflammatory+cytokine+production+and+apoptosis.">Lymphocyte-derived microparticles induce bronchial epithelial cells' pro-inflammatory cytokine production and apoptosis.</a> Mol Immunol. 55 (3-4), 220-230 (2013).</li><li>Martin, S., 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=Shed+membrane+particles+from+T+lymphocytes+impair+endothelial+function+and+regulate+endothelial+protein+expression.">Shed membrane particles from T lymphocytes impair endothelial function and regulate endothelial protein expression.</a> Circulation. 109 (13), 1653-1659 (2004).</li><li>Shet, A. S., 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=Sickle+blood+contains+tissue+factor-positive+microparticles+derived+from+endothelial+cells+and+monocytes.">Sickle blood contains tissue factor-positive microparticles derived from endothelial cells and monocytes.</a> Blood. 102 (7), 2678-2683 (2003).</li><li>Mause, S. F., Weber, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microparticles:+protagonists+of+a+novel+communication+network+for+intercellular+information+exchange.">Microparticles: protagonists of a novel communication network for intercellular information exchange.</a> Circ Res. 107 (9), 1047-1057 (2010).</li><li>Yang, C., 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=Anti-proliferative+and+anti-tumour+effects+of+lymphocyte-derived+microparticles+are+neither+species-+nor+tumour-type+specific.">Anti-proliferative and anti-tumour effects of lymphocyte-derived microparticles are neither species- nor tumour-type specific.</a> J Extracell Vesicles. 3, (2014).</li><li>Soleti, R., 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=Microparticles+harboring+Sonic+Hedgehog+promote+angiogenesis+through+the+upregulation+of+adhesion+proteins+and+proangiogenic+factors.">Microparticles harboring Sonic Hedgehog promote angiogenesis through the upregulation of adhesion proteins and proangiogenic factors.</a> Carcinogenesis. 30 (4), 580-588 (2009).</li></ol>

Parlamentari sono mediatori attivi intercellulare diafonia e il loro studio è promettente in molte aree della scienza. 11 Lo studio ha presentato un protocollo dettagliato per la generazione in vitro su larga scala di LMPS derivato da una linea di cellule T apoptotico. Questi parlamentari esprimono un vasto repertorio di molecole di linfociti e sono biologicamente implicati nella regolazione dell&#39;omeostasi cellulare e tissutale. Tuttavia, LMPS provenienti da fonti diverse può essere biologicame...

Microparticles (MPs) are biologically active submicron membrane vesicles released following cell activation or apoptosis. MPs are derived from both healthy and damaged cells and are implicated in many physiological and pathological processes.1 MPs have been detected not only in human plasma, but also in inflammatory and apoptotic tissue. The biological utility of cell membrane&#8211;derived MPs has been demonstrated in various settings, including cell signalling models and as pharmacological tools.2,3 We previously demonstrated that LMPs derived from T lymphocytes following actinomycin D stimulation (to induce apoptosis) suppress angiogenesis and inhibit endothelial cell survival and proliferation.4,5 The antiangiogenic effects of LMPs may vary significantly depending on the stimuli used to activate T lymphocytes in vitro.6
The airway epithelium functions as a protective physical and functional barrier. Increased numbers of T lymphocytes in the airway can contribute to cell damage and airway inflammation.7 We have shown that LMPs induce apoptosis of human bronchial epithelial cells,8 which indicated LMPs may change barrier function of bronchial epithelium in vivo. Apoptotic cells can be identified using the TUNEL method, which detects in situ DNA fragmentation. 
The overall goal of this protocol is to illustrate the in vitro production of LMPs from a T lymphocyte cell line, and to demonstrate their proapoptotic effect on airway epithelial cells. In situ cell death detection demonstrated that LMPs strongly induce airway bronchial epithelial cell death, suggesting that LMPs-mediated injury to the airway epithelium may impact barrier function of the damaged epithelium.

<table border="0" cellpadding="0" cellspacing="0" width="828">
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">LMPs production and characterization</td>
			<td style="width:231px;"></td>
			<td style="width:124px;"></td>
			<td style="width:171px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">CEM T cells&#160;</td>
			<td style="width:231px;">ATCC&#160;</td>
			<td style="width:124px;">CCL-119</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">X-VIVO 15 medium&#160;</td>
			<td style="width:231px;">Cambrex, Walkersville</td>
			<td>04-744Q</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">Flask T75</td>
			<td style="width:231px;">Sarstedt</td>
			<td style="width:124px;">83.1813.502</td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:303px;">Flask T175</td>
			<td style="width:231px;">Sarstedt</td>
			<td style="width:124px;">83.1812.502</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Actinomycin&#160;D&#160;</td>
			<td style="width:231px;">Sigma Chemical Co.</td>
			<td style="width:124px;">A9415-2mg</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">PBS</td>
			<td style="width:231px;">Lifetechnologies</td>
			<td>14190-144</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">0.22&#181;m filter</td>
			<td style="width:231px;">Sarstedt</td>
			<td style="width:124px;">83.1826.001</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">Annexin-VCy5</td>
			<td style="width:231px;">BD Pharmagen&#160;</td>
			<td>559933</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">FACS flow solution</td>
			<td>BD Bio-sciences</td>
			<td style="width:124px;">342003</td>
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		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">Fluorescent microbeads (1 um)</td>
			<td style="width:231px;">Molecular Probes&#160;</td>
			<td style="width:124px;">T8880</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Polysterene counting beads (7 um)</td>
			<td style="width:231px;">Bangs laboratories</td>
			<td style="width:124px;">PS06N/6994</td>
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		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Polypropylene FACS tubes</td>
			<td>Falcon</td>
			<td style="width:124px;">352058</td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:303px;">1 ml pipet</td>
			<td style="width:231px;">Fisher</td>
			<td style="width:124px;">13-678-11B</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">5 ml pipet</td>
			<td style="width:231px;">Falcon</td>
			<td style="width:124px;">357543</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">25 ml pipet</td>
			<td style="width:231px;">Ultident</td>
			<td style="width:124px;">DL-357551</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">1,5 ml conical polypropylene micro tube</td>
			<td style="width:231px;">Sarstedt</td>
			<td style="width:124px;">72.690</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">15 ml conical polypropylene tube</td>
			<td style="width:231px;">Sarstedt</td>
			<td style="width:124px;">62.554.205</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">50 ml conical polypropylene tube</td>
			<td style="width:231px;">Sarstedt</td>
			<td style="width:124px;">62.547.205</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:303px;">50 ml high speed polypropylene copolymer tube</td>
			<td style="width:231px;">Nalgene</td>
			<td style="width:124px;">3119-0050</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">250 ml high speed polypropylene bottle</td>
			<td style="width:231px;">Beckman</td>
			<td style="width:124px;">356011</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Protein assay (Bradford assay)</td>
			<td>Bio-Rad Laboratories</td>
			<td>500-0006</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Protein assay standard II</td>
			<td>Bio-Rad Laboratories</td>
			<td>500-0007</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Test tube 16x100</td>
			<td>VWR</td>
			<td>47729-576</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Test tube 12x75</td>
			<td>Ultident</td>
			<td>170-14100005B</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Cell incubator&#160;</td>
			<td style="width:231px;">Mandel</td>
			<td style="width:124px;">Heracell 150</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">Low speed centrifuge</td>
			<td style="width:231px;">IEC</td>
			<td style="width:124px;">Centra8R</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">High speed centrifuge</td>
			<td style="width:231px;">Beckman</td>
			<td style="width:124px;">Avanti J8</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">High speed rotor for 250ml bottle</td>
			<td style="width:231px;">Beckman</td>
			<td style="width:124px;">JLA16.250</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">High speed rotor for 50ml tube</td>
			<td style="width:231px;">Beckman</td>
			<td style="width:124px;">JA30.50</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Fow cytometry&#160;</td>
			<td>BD Bio-sciences</td>
			<td style="width:124px;">FACS Calibur</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">Spectrophotometer</td>
			<td style="width:231px;">Beckman</td>
			<td style="width:124px;">Series 600</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;"></td>
			<td style="width:231px;"></td>
			<td style="width:124px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Bronchial tissue explants and sections&#160;</td>
			<td style="width:231px;"></td>
			<td style="width:124px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">C57BL/6 mice (5-7 weeks old)&#160;&#160;</td>
			<td style="width:231px;">Charles River Laboratories, Inc.&#160;</td>
			<td style="width:124px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Mouse Airway PrimaCell&#8482; System:</td>
			<td style="width:231px;">CHI Scientific, Inc.</td>
			<td style="width:124px;">2-82001</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">&#160;Rib-Back Carbon Steel Scalpel Blades</td>
			<td style="width:231px;">Becton Dickinson AcuteCare</td>
			<td style="width:124px;">371310</td>
			<td>#10</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Scalpel Handle</td>
			<td style="width:231px;">Fine Science Tools Inc.&#160;</td>
			<td style="width:124px;">10003-12</td>
			<td>#7</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">phase-contrast inverted microscope</td>
			<td style="width:231px;">Olympus Optical CO., LTD.&#160;&#160;&#160;</td>
			<td style="width:124px;">CK2</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">high O2 gas mixture&#160;</td>
			<td>VitalAire Canada Inc.</td>
			<td style="width:124px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">modular incubator chamber</td>
			<td style="width:231px;">Billups-Rothenberg Inc.</td>
			<td style="width:124px;">MIC-101</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">MaxQ 4000 incubated orbital shaker</td>
			<td style="width:231px;">Barnstead Lab-Line,&#160;</td>
			<td style="width:124px;">SHKA4000-7</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">12-well tissue culture plate</td>
			<td style="width:231px;">Becton Dickinson and Company</td>
			<td style="width:124px;">353043</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">Plastic tissue culture dishes (100 mm)</td>
			<td style="width:231px;">Sarstedt, Inc.</td>
			<td style="width:124px;">83.1802</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:303px;">Surgical scissors</td>
			<td style="width:231px;">Fine Science Tools Inc.&#160;</td>
			<td style="width:124px;">14060-09</td>
			<td style="width:171px;">Straight, sharp, 9cm longth</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">Half-curved Graefe forceps</td>
			<td style="width:231px;">Fine Science Tools Inc.&#160;</td>
			<td style="width:124px;">11052-10</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">humidified CO2 incubator</td>
			<td style="width:231px;">Mandel Scientific Company Inc.&#160;</td>
			<td style="width:124px;">SVH-51023421</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;"></td>
			<td style="width:231px;"></td>
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			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">&#160;Histopathological examination&#160;</td>
			<td style="width:231px;"></td>
			<td style="width:124px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">formalin formaldehyde</td>
			<td style="width:231px;">Sigma-Aldrich, Inc.&#160;</td>
			<td style="width:124px;">HT5011</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">paraffin</td>
			<td style="width:231px;">Fisher scientific&#160; International, Inc.</td>
			<td style="width:124px;">T555</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">ethyl alcohol</td>
			<td style="width:231px;">Merck KGaA, Darmstadt</td>
			<td style="width:124px;">EX0278-1</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">&#160;glutaraldehyde&#160;</td>
			<td style="width:231px;">Sigma-Aldrich, Inc.&#160;</td>
			<td style="width:124px;">G6403</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Cacodylate</td>
			<td style="width:231px;">Sigma-Aldrich, Inc.&#160;</td>
			<td style="width:124px;">31533</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">microscope slides</td>
			<td style="width:231px;">VWR Scientific Inc.&#160;</td>
			<td style="width:124px;">48300-025</td>
			<td>25x75mm</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Xylene</td>
			<td style="width:231px;">Fisher scientific&#160; International, Inc.</td>
			<td style="width:124px;">X5-4</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Mayer&#39;s hematoxylin</td>
			<td style="width:231px;">Sigma-Aldrich, Inc.&#160;</td>
			<td style="width:124px;">MHS16</td>
			<td>Funnel with filter paper&#160;&#160;</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">HCl&#160;</td>
			<td style="width:231px;">Fisher scientific&#160; International, Inc.&#160;&#160;</td>
			<td style="width:124px;">A144s-500</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">eosin&#160;</td>
			<td style="width:231px;">Sigma-Aldrich, Inc.&#160;</td>
			<td style="width:124px;">HT110116</td>
			<td>Funnel with filter paper&#160;&#160;</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Permount&#8482; Mounting Medium</td>
			<td style="width:231px;">Thermo Fisher Scientific Inc.&#160;</td>
			<td>SP15-100</td>
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		<tr height="21">
			<td height="21" style="height:21px;">glass coverslip</td>
			<td style="width:231px;">surgipath medical industries, Inc.</td>
			<td style="width:124px;">84503</td>
			<td>24&#215;24&#160;#1&#160;</td>
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		<tr height="21">
			<td height="21" style="height:21px;">TUNEL detection kit</td>
			<td style="width:231px;">In Situ Cell Death Detection, POD</td>
			<td style="width:124px;">11 684 817 910</td>
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		<tr height="21">
			<td height="21" style="height:21px;">oven</td>
			<td style="width:231px;">Despatch Industries Inc.</td>
			<td style="width:124px;">LEB-1-20</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">rotary Microtome</td>
			<td style="width:231px;">Leica Microsystems Inc.</td>
			<td style="width:124px;">RM2145</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">filter paper</td>
			<td style="width:231px;">Whatman International Ltd.</td>
			<td style="width:124px;">1003150</td>
			<td>#3</td>
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			<td height="21" style="height:21px;">Microscope</td>
			<td style="width:231px;">Nikon Imaging Japan Inc.</td>
			<td style="width:124px;">E800</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">staining dish complete</td>
			<td style="width:231px;">Wheaton Industries, Inc.</td>
			<td>900200</td>
			<td>including dish, rack, cover</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:303px;">1.5 ml eppendorf tube</td>
			<td style="width:231px;">Sarstedt Inc.&#160;</td>
			<td style="width:124px;">72.69</td>
			<td>39x10mm</td>
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			<td style="width:231px;">ExpotechUSA</td>
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			<td height="21" style="height:21px;">phosphate buffered saline&#160;&#160;</td>
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			<td style="width:124px;">14190-144</td>
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			<td height="21" style="height:21px;">fume hood</td>
			<td>Nicram RD Service</td>
			<td>3707E</td>
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	</tbody>
</table>

generation of lymphocytic microparticles and detection of their proapoptotic effect on airway epithelial cells

L&#39;interesse per i ruoli biologici delle cellule vescicole membrana derivata nella comunicazione cellula-cellula è aumentato negli ultimi anni. Microparticelle (MPS) sono un tale tipo di vescicole, che vanno a diametro da 0,1 micron a 1 micron, e tipicamente capannone dalla membrana plasmatica delle cellule eucariotiche in fase di attivazione o apoptosi. Qui si descrive la generazione di linfociti T di derivazione microparticelle (LMPS) da apoptosi delle cellule T CEM stimolate con actinomicina D. LMPS sono isolati attraverso un processo di centrifugazione differenziale più gradi e caratterizzate con citometria a flusso. Questo protocollo presenta anche un metodo di rilevamento morte cellulare in situ per dimostrare l&#39;effetto della proapoptotico LMPS sulle cellule epiteliali bronchiali derivate da topi primari espianti tissutali bronchiali respiratorie. Metodi qui descritti forniscono una procedura riproducibile per isolare quantità abbondanti di LMPS da linfociti apoptotici in vitro. LMPS derivatoin questo modo può essere utilizzato per valutare le caratteristiche dei vari modelli di malattia, e farmacologia e test tossicologici. Dato che l&#39;epitelio delle vie aeree offre una barriera fisica e funzionale protettivo tra l&#39;ambiente esterno e del tessuto sottostante, uso di espianti tissutali bronchiali piuttosto che linee cellulari epiteliali immortalizzate fornisce un modello efficace per le indagini richiedono tessuti delle vie aeree.

LMPS sono stati caratterizzati con annessina V colorazione 10 da cellule fluorescenza attivate (FACS) analisi e recintato con 1 micron perle in cui il 97% dei parlamentari (≤1 micron) erano annessina-V-Cy5 positivi (Figura 1A e 1B). In genere, circa 2,5 mg di LMPS stati ottenuti seguendo questo protocollo. Espianti tessuto bronchiale da topi C57BL / 6 sono stati sottoposti a trattamento veicolo e LMPS. Analisi istopatologica delle sezioni bronchiali rivelato l&#39;effetto LMPS sulla integri...

Watch this Scientific Journal Video about Generation of Lymphocytic Microparticles and Detection of their Proapoptotic Effect on Airway Epithelial Cells at JoVE.com

Generation of Lymphocytic Microparticles and Detection of their Proapoptotic Effect on Airway Epithelial Cells

Microparticelle di membrana-capannone cellule (MPS) sono vescicole biologici attivi che possono essere isolate e loro effetti fisiopatologici esaminato in vari modelli. Qui si descrive un metodo per la generazione di parlamentari provenienti dai linfociti T (LMPS) e per dimostrare il loro effetto pro-apoptotico sulle cellule epiteliali delle vie aeree.

Generazione di linfocitica microparticelle e rilevamento del loro effetto pro-apoptotico su cellule delle vie aeree epiteliali

Interest in the biological roles of cell membrane&#8211;derived vesicles in cell&#8211;cell communication has increased in recent years. Microparticles ...

Research

JoVE Journal

Immunology and Infection

Co-culture Models of Pseudomonas aeruginosa Biofilms Grown on Live Human Airway Cells

Co-culture Models of Pseudomonas aeruginosa Biofilms Grown on Live Human Airway Cells

Co-coltura Modelli di Pseudomonas aeruginosa Biofilm Cresciuto in diretta cellule delle vie aeree umane

Bacterial biofilms have been associated with a number of different human diseases, but biofilm development has generally been studied on non-living ...

Ricerca

Immunologia e infezioni

Combination of Adhesive-tape-based Sampling and Fluorescence in situ Hybridization for Rapid Detection of Salmonella on Fresh Produce

Combination of Adhesive-tape-based Sampling and Fluorescence in situ Hybridization for Rapid Detection of Salmonella on Fresh Produce

Combinazione di nastro adesivo a base di campionamento e di fluorescenza In situ</emIbridazione> per il rilevamento rapido di Salmonella Su prodotti freschi

This protocol describes a simple approach for adhesive-tape-based sampling of tomato and other fresh produce surfaces, followed by on-tape fluorescence in ...

Application of a Mouse Ligated Peyer&#x2019;s Patch Intestinal Loop Assay to Evaluate Bacterial Uptake by M cells

Application of a Mouse Ligated PeyerÃƒÂ¢Ã¢â€šÂ¬Ã¢â€žÂ¢s Patch Intestinal Loop Assay to Evaluate Bacterial Uptake by M cells

Applicazione di un mouse legatura Patch Peyer Assay intestinale Loop per valutare assorbimento da parte delle cellule batteriche M

The inside of our gut is inhabited with enormous number of commensal bacteria. The mucosal surface of the gastrointestinal tract is continuously exposed ...

The Synergistic Effect of Visible Light and Gentamycin on Pseudomona aeruginosa Microorganisms

The Synergistic Effect of Visible Light and Gentamycin on Pseudomona aeruginosa Microorganisms

L&#39;effetto sinergico di luce visibile e Gentamicina su<em&gt; Pseudomonas aeruginosa</em&gt; Microrganismi

Recently there were several publications on the  bactericidal effect of visible light, most of them claiming that blue part of  the spectrum (400 nm-500 ...

Establishing a Liquid-covered Culture of Polarized Human Airway Epithelial Calu-3 Cells to Study Host Cell Response to Respiratory Pathogens In vitro

Establishing a Liquid-covered Culture of Polarized Human Airway Epithelial Calu-3 Cells to Study Host Cell Response to Respiratory Pathogens In vitro

Creazione di un liquido coperto Cultura polarizzata Airway epiteliali umane Calu-3 celle per studio cellulare risposta dell&#39;ospite agli agenti patogeni delle vie respiratorie<em&gt; In vitro</em

The  apical and basolateral surfaces of airway epithelial cells demonstrate  directional responses to pathogen exposure in  vivo. Thus, ideal in vitro ...

Isolation of Myeloid Dendritic Cells and Epithelial Cells from Human Thymus

Isolamento di cellule dendritiche mieloidi e cellule epiteliali di timo umano

In this protocol we provide a method to isolate dendritic cells (DC) and epithelial cells (TEC) from the human thymus. DC and TEC are the major antigen ...

Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells

Metodi per quantitativa individuazione di anticorpi indotta da attivazione del complemento sui globuli rossi

Antibodies against red blood cells (RBCs) can lead to complement activation resulting in an accelerated clearance via complement receptors in the liver ...

Phenotypic and Functional Analysis of Activated Regulatory T Cells Isolated from Chronic Lymphocytic Choriomeningitis Virus-infected Mice

Fenotipica e analisi funzionale di cellule T regolatorie attivati ​​Isolato dal linfocitica cronica coriomeningite topi infettati da virus

Regulatory T (Treg) cells, which express Foxp3 as a transcription factor, are subsets of CD4+ T cells. Treg cells play crucial roles in immune tolerance ...

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels

Campionamento non invasivo del rivestimento mucoso fluido per la quantificazione dei livelli di Immune-mediatore In Vivo delle vie respiratorie superiore

This protocol describes noninvasive sampling of undisturbed upper airway mucosal lining fluid. It also details the extraction procedure used prior to the ...

Isolation and Characterization of Neutrophil-derived Microparticles for Functional Studies

Isolamento e caratterizzazione delle microparticelle neutrofilo per studi funzionali

Polymorphonuclear neutrophil-derived microparticles (PMN)-MPs) are lipid bilayer, spherical microvesicles with sizes ranging from 50&#8211;1,000 nm in ...