Name: real-time imaging of heterotypic platelet-neutrophil interactions on the activated endothelium during vascular inflammation and thrombus formation in live mice
Uploaded: 2013-04-02T13:00:00
Description: Watch this Scientific Journal Video about Real-time Imaging of Heterotypic Platelet-neutrophil Interactions on the Activated Endothelium During Vascular Inflammation and Thrombus Formation in Live Mic

Detta arbete stöddes delvis av anslag från National Institutes of Health (P30 HL101302 och RO1 HL109439 till JC) och American Heart Association (SDG 5.270.005 till JC). A. Barazia stöddes av en T32HL007829 NIH utbildningsstipendium.

1. Framställning av intravital mikroskop (Figur 1A) <ol><li> Förbered superfusion buffert (125 mM NaCl, 4,5 mM KCl, 2,5 mM CaCla 2, 1 mM MgClj 2, och 17 mM NaHCOs 3, pH 7,4). </li><li> Slå på en cirkulatorisk vattenbad för att bibehålla temperaturen hos buffert och en termo-styrd filt vid 37 ° C. Lufta buffert med kvävgas (5% CO 2 balanseras med kväve). </li><li> Slå på mikroskopet systemet (Sutter Lambda GD-4 hög hastighet våglängd växlare, arbetsstation dato...

<ol>
	<li>Wagner, D. D., Frenette, P. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+vessel+wall+and+its+interactions.">The vessel wall and its interactions.</a> Blood. 111, 5271-5281 (2008).</li><li>Nieswandt, B., Kleinschnitz, C., Stoll, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ischaemic+stroke:+a+thrombo-inflammatory+disease.">Ischaemic stroke: a thrombo-inflammatory disease.</a> J. Physiol. 589, 4115-4123 (2011).</li><li>Yang, J., Furie, B. C., Furie, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+biology+of+P-selectin+glycoprotein+ligand-1:+its+role+as+a+selectin+counterreceptor+in+leukocyte-endothelial+and+leukocyte-platelet+interaction.">The biology of P-selectin glycoprotein ligand-1: its role as a selectin counterreceptor in leukocyte-endothelial and leukocyte-platelet interaction.</a> Thromb. Haemost. 81, 1-7 (1999).</li><li>Zarbock, A., Polanowska-Grabowska, R. K., Ley, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Platelet-neutrophil-interactions:+linking+hemostasis+and+inflammation.">Platelet-neutrophil-interactions: linking hemostasis and inflammation.</a> Blood Rev. 21, 99-111 (2007).</li><li>Chen, J., Lopez, 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=Interactions+of+platelets+with+subendothelium+and+endothelium.">Interactions of platelets with subendothelium and endothelium.</a> Microcirculation. 12, 235-246 (2005).</li><li>Konstantopoulos, 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=Venous+levels+of+shear+support+neutrophil-platelet+adhesion+and+neutrophil+aggregation+in+blood+via+P-selectin+and+beta2-integrin.">Venous levels of shear support neutrophil-platelet adhesion and neutrophil aggregation in blood via P-selectin and beta2-integrin.</a> Circulation. 98, 873-882 (1998).</li><li>Maugeri, N., de Gaetano, G., Barbanti, M., Donati, M. B., Cerletti, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Prevention+of+platelet-polymorphonuclear+leukocyte+interactions:+new+clues+to+the+antithrombotic+properties+of+parnaparin,+a+low+molecular+weight+heparin.">Prevention of platelet-polymorphonuclear leukocyte interactions: new clues to the antithrombotic properties of parnaparin, a low molecular weight heparin.</a> Haematologica. 90, 833-839 (2005).</li><li>Hidalgo, 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=Heterotypic+interactions+enabled+by+polarized+neutrophil+microdomains+mediate+thromboinflammatory+injury.">Heterotypic interactions enabled by polarized neutrophil microdomains mediate thromboinflammatory injury.</a> Nat. Med. 15, 384-391 (2009).</li><li>Cho, J., Furie, B. C., Coughlin, S. R., Furie, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+critical+role+for+extracellular+protein+disulfide+isomerase+during+thrombus+formation+in+mice.">A critical role for extracellular protein disulfide isomerase during thrombus formation in mice.</a> J. Clin. Invest. 118, 1123-1131 (2008).</li><li>Cho, 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=Protein+disulfide+isomerase+capture+during+thrombus+formation+in+vivo+depends+on+the+presence+of+beta3+integrins.">Protein disulfide isomerase capture during thrombus formation in vivo depends on the presence of beta3 integrins.</a> Blood. 120, 647-655 (2012).</li><li>Gross, P. L., Furie, B. C., Merrill-Skoloff, G., Chou, J., Furie, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Leukocyte-versus+microparticle-mediated+tissue+factor+transfer+during+arteriolar+thrombus+development.">Leukocyte-versus microparticle-mediated tissue factor transfer during arteriolar thrombus development.</a> Journal of Leukocyte Biology. 78, 1318-1326 (2005).</li><li>Falati, S., Gross, P., Merrill-Skoloff, G., Furie, B. C., Furie, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Real-time+in+vivo+imaging+of+platelets,+tissue+factor+and+fibrin+during+arterial+thrombus+formation+in+the+mouse.">Real-time in vivo imaging of platelets, tissue factor and fibrin during arterial thrombus formation in the mouse.</a> Nat. Med. 8, 1175-1181 (2002).</li><li>Barthel, S. 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=Alpha+1,3+fucosyltransferases+are+master+regulators+of+prostate+cancer+cell+trafficking.">Alpha 1,3 fucosyltransferases are master regulators of prostate cancer cell trafficking.</a> Proceedings of the National Academy of Sciences of the United States of America. 106, 19491-19496 (2009).</li><li>Trzpis, M., McLaughlin, P. M., de Leij, L. M., Harmsen, 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=Epithelial+cell+adhesion+molecule:+more+than+a+carcinoma+marker+and+adhesion+molecule.">Epithelial cell adhesion molecule: more than a carcinoma marker and adhesion molecule.</a> The American Journal of Pathology. 171, 386-395 (2007).</li><li>Junt, 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=Dynamic+visualization+of+thrombopoiesis+within+bone+marrow.">Dynamic visualization of thrombopoiesis within bone marrow.</a> Science. 317, 1767-1770 (2007).</li><li>Egan, C. E., Sukhumavasi, W., Bierly, A. L., Denkers, E. Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Understanding+the+multiple+functions+of+Gr-1(+)+cell+subpopulations+during+microbial+infection.">Understanding the multiple functions of Gr-1(+) cell subpopulations during microbial infection.</a> Immunologic Research. 40, 35-48 (2008).</li></ol>

Här beskriver vi ett detaljerat protokoll i realtid fluorescens intravital mikroskopi för att visualisera heterotypiska trombocyt-neutrofila interaktioner på aktiverat endotel vid vaskulär inflammation och trombos. Tidigare har liknande fluorescens mikroskopiska metoder rapporterades att studera molekylära mekanismen för trombbildning och vaskulär inflammation. Sedan heterotypisk cell-cell interaktion kan vara viktigt för vaso-ocklusion vid skada plats 8,12, kommer denna teknik att vara ett värdefull...

<table border="1">
	<tbody>
		<tr>
			<td>Name of Reagent/Material</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td>NaCl</td>
			<td>Fisher Scientific</td>
			<td>7647-14-5</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>KCl</td>
			<td>Sigma-Aldrich</td>
			<td>7447-40-7</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>CaCl2 2H2O</td>
			<td>Sigma-Aldrich</td>
			<td>10035-04-8</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>MgCl2 6H2O</td>
			<td>Fisher Scientific</td>
			<td>7791-18-6</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>NaHCO3</td>
			<td>Fisher Scientific</td>
			<td>144-55-8</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>0.9% NaCl Saline</td>
			<td>Hospira</td>
			<td>0409-4888-10</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Ketamine</td>
			<td>Hospira</td>
			<td>0409-2051-05</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Xylazine</td>
			<td>Lloyd</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Intramedic Tubing (PE 90)</td>
			<td>BD Diagnostics</td>
			<td>427421</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Intramedic Tubing (PE 10)</td>
			<td>BD Diagnostics</td>
			<td>427401</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Murine TNF-&alpha;</td>
			<td>R&amp;D Systems</td>
			<td>410-MT</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Dylight 488- labeled rat anti-mouse CD42b antibody</td>
			<td>Emfret Analytics</td>
			<td>X488</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Alexa Fluor 647-conjugated anti-mouse Ly-6G/Ly-6C (Gr-1) Antibody</td>
			<td>BioLegend</td>
			<td>108418</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>NESLAB EX water bath/circulator</td>
			<td>Thermo-Scientific</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Olympus BX61W microscope</td>
			<td>Olympus</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>TH4-100 Power</td>
			<td>Olympus</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Lambda DG-4</td>
			<td>Sutter</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>MPC-200 multi-manipulator</td>
			<td>Sutter</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>ROE-200 stage controller</td>
			<td>Sutter</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>C9300 high-speed camera</td>
			<td>Hamamatsu</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Intensifier</td>
			<td>Video Scope International</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Ablation Laser</td>
			<td>Photonic Instruments, Inc.</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>SlideBook 5.0</td>
			<td>Intelligent Imaging Innovations</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
	</tbody>
</table>

real-time imaging of heterotypic platelet-neutrophil interactions on the activated endothelium during vascular inflammation and thrombus formation in live mice

Interaktion av aktiverade blodplättar och leukocyter (huvudsakligen neutrofiler) på den aktiverade endotelet förmedlar trombos och vaskulär inflammation. 1,2 Under trombbildning vid stället för arteriolära skada, trombocyter vidhäftande till aktiverat endotel och subendoteliala matrisproteiner stöder neutrofil rullning och vidhäftning. 3 Omvänt, under venular inflammatoriska tillstånd, kan neutrofiler vidhäftande till aktiverat endotel stödja vidhäftning och ansamling av cirkulerande trombocyter. Heterotypisk trombocyt-neutrofil aggregering kräver sekventiella processer av de specifika receptor-motreceptor interaktioner mellan celler. 4 Det är känt att aktiverade endotelceller frigör adhesionsmolekyler såsom von Willebrand faktor, vilket initierar trombocytadhesion och ackumulering under höga skjuvningsbetingelser. 5 Dessutom, aktiverade endotelceller stödjer neutrofil rullning och vidhäftning genom att uttrycka selektiner end. intercellulär adhesionsmolekyl-1 (ICAM-1), respektive, under låga skjuvningsförhållanden. trombocyter 4 P-selektin interagerar med neutrofiler till P-selektin-ligand glykoprotein-1 (PSGL-1), och därigenom inducera aktivering av neutrofila β2 integriner och fasta vidhäftning mellan två celltyper. Trots framsteg inom in vitro experiment där heterotypiska trombocyt-neutrofila interaktioner bestäms i helblod eller isolerade celler, 6,7 Dessa studier kan inte manipulera villkor oxidant stress under kärlsjukdom. I denna rapport använder fluorescensmärkta, specifika antikroppar mot en mus trombocyter och neutrofiler markör, beskriver vi en detaljerad intravital mikroskopisk protokoll för att övervaka heterotypiska interaktioner mellan trombocyter och neutrofiler på det aktiverade endotelet under TNF-α-inducerad inflammation eller efter laserinducerad skada i cremaster muskel mikrokärl av levande möss.

Med hjälp av en detaljerad intravital mikroskopi analys var heterotypiska trombocyt-neutrofila interaktioner på den aktiverade endotelet visualiseras genom infusion av fluorescensmärkta antikroppar mot en plätt (CD42c) eller neutrofil markör (Gr-1) till levande möss. I en modell av TNF-α-inducerad venular inflammation, var de flesta rullande neutrofiler stabilt vidhäftad till endotelet förmodligen genom interaktion av aktiverade β2 integriner med ICAM-1 under registreringsperioden ...

Watch this Scientific Journal Video about Real-time Imaging of Heterotypic Platelet-neutrophil Interactions on the Activated Endothelium During Vascular Inflammation and Thrombus Formation in Live Mic

Real-time Imaging of Heterotypic Platelet-neutrophil Interactions on the Activated Endothelium During Vascular Inflammation and Thrombus Formation in Live Mice

Här rapporterar vi en experimentell teknik för fluorescens intravital mikroskopi för att visualisera heterotypiska trombocyt-neutrofila interaktioner på aktiverat endotel vid vaskulär inflammation och blodproppsbildning i levande möss. Denna mikroskopiska tekniken kommer att vara värdefullt att studera den molekylära mekanismen för kärlsjukdom och testa farmakologiska medel enligt patofysiologiska förhållanden.

Realtid avbildning av heterotypisk blodplättar-neutrofila interaktioner på aktiverat endotel Under vaskulär inflammation och blodproppsbildning i levande möss

Interaction of activated platelets and leukocytes (mainly neutrophils) on the activated endothelium mediates thrombosis and vascular inflammation.1,2 ...

Research

JoVE Journal

Immunology and Infection

Real-time Imaging of Leukotriene B4 Mediated Cell Migration and BLT1 Interactions with &beta;-arrestin

Real-time Imaging of Leukotriene B4 Mediated Cell Migration and BLT1 Interactions with ÃƒÅ½Ã‚Â²-arrestin

Realtid avbildning av Leukotriene B 4 Medierad Cell Migration och BLT1 Interaktioner med β-arrestin

G-protein coupled receptors (GPCRs) belong to the seven transmembrane protein family and mediate the transduction of extracellular signals to ...

Imaging Leukocyte Adhesion to the Vascular Endothelium at High Intraluminal Pressure

Imaging Leukocyte Vidhäftning till det vaskulära endotelet på High intraluminal Pressure

Worldwide, hypertension is reported to be in approximately a quarter of the population and is the leading biomedical risk factor for mortality worldwide. ...

Detection of MicroRNAs in Microglia by Real-time PCR in Normal CNS and During Neuroinflammation

Detektering av MikroRNA i Mikroglia av Real-time PCR i normala CNS och under Neuroinflammation

Microglia are cells of the myeloid lineage that reside in the central nervous system (CNS)1. These cells play an important role in pathologies of many ...

Real-time Live Imaging of T-cell Signaling Complex Formation

Real-time Live avbildning av T-cellsignalering Complex Formation

Protection against infectious diseases is mediated by the immune system 1,2. T lymphocytes are the master coordinators of the immune system, regulating ...

Real-time Imaging of Endothelial Cell-cell Junctions During Neutrophil Transmigration Under Physiological Flow

Realtid avbildning av endotelceller-cells Junctions Under neutrofila Trans under fysiologiska Flow

During inflammation, leukocytes leave the circulation and cross the endothelium to fight invading pathogens in underlying tissues. This process is known ...

Deciphering and Imaging Pathogenesis and Cording of Mycobacterium abscessus in Zebrafish Embryos

Deciphering and Imaging Pathogenesis and Cording of Mycobacterium abscessus in Zebrafish Embryos

Dechiffrera och Imaging patogenes och Cording av<em&gt; Mycobacterium abscessus</em&gt; I zebrafiskembryon

Zebrafish (Danio rerio) embryos are increasingly used as an infection model to study the function of the vertebrate innate immune system in host-pathogen ...

Imaging Neutrophils and Monocytes in Mesenteric Veins by Intravital Microscopy on Anaesthetized Mice in Real Time

Imaging Neutrofiler och Monocyter i Mesenteric Veins av Intravital Mikroskopi på sövda möss i realtid

Efficient immune response is dependent on rapid mobilization of blood leukocytes to the site of infection or injury. Investigating leukocyte migration in ...

Metabolic Characterization of Polarized M1 and M2 Bone Marrow-derived Macrophages Using Real-time Extracellular Flux Analysis

Metabolic karakterisering av polariserat M1 och M2 Benmärgs-härledda makrofager Användning av realtids Extracellulärt Flux Analys

Specific metabolic pathways are increasingly being recognized as critical hallmarks of macrophage subsets. While LPS-induced classically activated M1 or ...

In Vitro Microfluidic Disease Model to Study Whole Blood-Endothelial Interactions and Blood Clot Dynamics in Real-Time

In Vitro Microfluidic Sjukdom Modell för att studera helblod-endothelial interaktioner och dynamiken blodpropp i realtid

The formation of blood clots involves complex interactions between endothelial cells, their underlying matrix, various blood cells, and proteins. The ...

Blocking Lymph Flow by Suturing Afferent Lymphatic Vessels in Mice

Blockering Lymfflödet genom suturering afferenta lymfkärl hos möss

Lymphatic vessels are critical in maintaining tissue fluid balance and optimizing immune protection by transporting antigens, cytokines, and cells to ...