Umbilical cords were collected with the assistance of the Birmingham Women's Health Care NHS Trust. HMM was supported by an Arthritis Research UK Career Development Fellowship (19899) and Systems Science for Health, University of Birmingham (5212).

<ol>
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B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Influence+of+stromal+cells+on+lymphocyte+adhesion+and+migration+on+endothelial+cells.">Influence of stromal cells on lymphocyte adhesion and migration on endothelial cells.</a> Methods in molecular biology. 616, 49-68 (2010).</li><li>Butler, L. M., McGettrick, H. M., Nash, G. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Static+and+dynamic+assays+of+cell+adhesion+relevant+to+the+vasculature.">Static and dynamic assays of cell adhesion relevant to the vasculature.</a> Methods in molecular biology. 467, 211-228 (2009).</li><li>Jeffery, H. C., Buckley, C. D., Moss, P., Rainger, G. E., Nash, G. B., McGettrick, H. 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The authors declare that they have no conflicts of interest.

Burada iltihaplı endoteli tarafından nötrofillerin dolaşımdaki işe okuyan iki in vitro &quot;vasküler&quot; modelleri açıklar. Bu modellerin önemli bir avantajı, in vivo olarak meydana gelen gibi, sırayla lökosit yapışma kademeli olarak her adımda analiz yeteneğidir. Daha önce TNFa ile uyarılan EC 9,29 ile doza bağlı, nötrofil adhezyonunun artış ve transmigrasyonun gözlemledik. Biz de hem modeller lökosit işe üzerindeki stromal hücrelerin etkilerini incelemek iç...

Enflamasyon çözünürlüğü 1,2 izin vermek için, iltihaplı doku sıkı lökosit girişi düzenleme ve çıkış gerektiren mikrobik enfeksiyon veya doku yaralanmasına karşı koruyucu bir cevaptır. Endotel hücreleri (EC), bu hat, kan damarları, dolaşımdaki lökositlerin doku yerleşik stromal hücreler arasındaki çapraz konuşma Bu işlemi 3 koordine için gereklidir. Ancak, lökositlerin kontrolsüz alımı ve etkisiz boşluk kronik inflamatuar hastalıkların 4 gelişimini destekleyen. Sağlıkta ve hastalıkta lökosit işe Mevcut anlayış eksik ve daha sağlam modeller bu süreci analiz etmek gereklidir. sonrası kılcal venüllerin vasküler EC kanın lökosit işe destek mekanizmaları iyi 1,2,5 tarif edilmiştir. Dolaşım halindeki lökositler, özel bir reseptör (örneğin, VCAM-1, E-selektin, P-selektin) tarafından çekildiğiiltihaplı endotel üzerinde yukarı-regüle edilir. Bu geçici etkileşimler lökosit yüzey bağlı kemokin ve lökositler 6- 11 tarafından ifade integrinler aktive lipit kaynaklı mediatörler (kökenli endotel veya stromal ya) ile etkileşim sağlar. Bu da endotel genelinde ve doku 12- 15 içine yapışma ve sürücüler göç dengeler. Doku içinde, lökositler kendi motilite, fonksiyon ve yaşam 16,17 etkileyen stroma türevli ajanlara maruz işe. Büyüyen kanıtlar güçlü sinyaller gelecek için işe alım süreci şartları lökositlerin her aşamasında alınan düşündürmektedir. Ancak, lökosit işe anlayışımız eksik kalır ve çok az doku içindeki bileşenler şekillendirme lökosit hareketi hakkında bilinmektedir. Birmingham biz lökositlerin işe incelemek için in vitro &quot;vasküler&quot; modelleri birkaç geliştirdik9,18,19 akar. Biz şimdi lökosit işe vasküler AK hareket olarak acil regülatörleri kendi yerel mikroçevresinin değişikliklere yanıt anlıyoruz. Özellikle, doku yerleşik stromal hücreler aktif işe 3 rollerini etkilemek için komşu vasküler AT ile söyleşmek kısmen, inflamatuvar yanıtı düzenler. Daha önce çeşitli stromal hücreler, bir doku-spesifik bir şekilde yapışmasını ve lökositlerin geçişini desteklemek için AT yeteneğini modüle göstermiştir, ve bu etkiler, kronik hastalıkların 13,16,20,21 değişmiş da yol açabilir. Böylece, stromal hücreler her inflamatuar yanıt 22 bağlamı tanımlamanızı doku &#39;adres kodları&#39; kurmak. Daha yakın bir zamanda, kemik iliği türevli MSC (BMMSC) potansiyel olarak her iki nötrofillerin alımına bir azalmaya yol açan, sitokinlere EC tepkisini aşağı regüle ve 23 lenfosit olduğunu göstermiştir. mekanizmalar governing işe aydınlatmıştır in vitro ölçüde izole bir tek hücre tipi (örn, AK) veya protein içeren deneyleri kullandık. Ancak bu çalışmalar dikkate almayın lokal doku çevrenin etkileri (örneğin, stromal hücrelerin varlığı) lökositlerin ve doku içine onların sonraki göç. Burada, stromal hücreleri, spesifik olarak mezenkimal kök hücreler içinde iki akış tabanlı yöntemler (MSC) tarif EC 23 ile birlikte kültürlenmiştir. Bu modeller bize akışından lökosit işe desteklemek için özellikle kendi yeteneği endotel tepkiler üzerine stromal hücre etkisini incelemek için izin verir.

<table border="0" cellpadding="0" cellspacing="0" >
	<tbody>
		<tr >
			<td >Collagenase Type Ia</td>
			<td >Sigma</td>
			<td>C2674</td>
			<td>Dilute in 10ml PBS to get a final concentration of 10mg/ml. Store at -20&#176;C in 1ml aliquots.</td>
		</tr>
		<tr >
			<td >Dulbecco&#39;s PBS</td>
			<td >Sigma</td>
			<td >D8662</td>
			<td>With calcium and magnesium chloride. Keep sterile and store at room temperature.</td>
		</tr>
		<tr >
			<td >1X Medium M199</td>
			<td >Gibco</td>
			<td >31150-022</td>
			<td>Warm in 37 &#176;C water bath before use.</td>
		</tr>
		<tr >
			<td >Gentamicin sulphate</td>
			<td >Sigma</td>
			<td >G1397</td>
			<td>Store at 4&#176;C. Add to M199 500ml bottle.</td>
		</tr>
		<tr >
			<td >Human epidermal growth factor</td>
			<td >Sigma</td>
			<td >E9644</td>
			<td>Store at -20&#176;C in 10&#181;l aliquots.</td>
		</tr>
		<tr >
			<td >Fetal calf serum (FCS)</td>
			<td >Sigma</td>
			<td >F9665</td>
			<td >FCS must be batch tested to ensure the growth and viability of isolated EC. Heat inactivate at 56&#176;C. Store in 10ml aliquots at -20&#176;C.</td>
		</tr>
		<tr >
			<td >Amphotericin B</td>
			<td >Gibco</td>
			<td >15290-026</td>
			<td >Potent and becomes toxic within a week so fresh complete HUVEC medium must be made up every week. Store at -20&#176;C in 1ml aliquots.</td>
		</tr>
		<tr >
			<td >Hydrocortisone</td>
			<td >Sigma</td>
			<td >H0135</td>
			<td>Stock is in ethanol. Store at -20&#176;C in 10&#181;l aliquots.</td>
		</tr>
		<tr >
			<td >Collagenase Type II</td>
			<td >Sigma</td>
			<td >C6885</td>
			<td>Dilute stock in PBS to a final concentration of 100mg/ml. Store at -20&#176;C in 100&#181;l aliquots.</td>
		</tr>
		<tr >
			<td >Hyaluronidase</td>
			<td >Sigma</td>
			<td >H3631</td>
			<td>Dilute stock in PBS to a final concentration of 20,000U/ml. Store at -20&#176;C in 100&#181;l aliquots.</td>
		</tr>
		<tr >
			<td >100&#181;m cell strainer for 50ml centifuge tube</td>
			<td >Scientific Lab Supplies (SLS)</td>
			<td >352360</td>
			<td >Other commercially available cell strainers (e.g. Greiner bio-one) can also be used.</td>
		</tr>
		<tr >
			<td >DMEM low glucose</td>
			<td >Biosera</td>
			<td >LM-D1102/500</td>
			<td>Warm in 37 &#176;C water bath before use.</td>
		</tr>
		<tr >
			<td >Penicillin/Streptomycin mix</td>
			<td >Sigma</td>
			<td >P4333</td>
			<td>Store at -20&#176;C in 1ml aliquots.</td>
		</tr>
		<tr >
			<td >25cm2 tissue culture flask</td>
			<td >SLS</td>
			<td >353109</td>
			<td></td>
		</tr>
		<tr >
			<td >75cm2 tissue culture flask</td>
			<td >SLS</td>
			<td >353136</td>
			<td></td>
		</tr>
		<tr >
			<td >Bone marrow mesenchymal stem cells vial</td>
			<td >Lonza</td>
			<td >PT-2501</td>
			<td >Store in liquid nitrogen upon arrival. Cells are at passage 2 upon arrival but are designated passage 0. Exapand to passage 3 and store in liquid nitrogen for later use.</td>
		</tr>
		<tr >
			<td >Mesenchymal stem cell growth medium (MSCGM)</td>
			<td >Lonza</td>
			<td >PT-3001</td>
			<td>Warm in 37 &#176;C water bath before use. For Cell Tracker Green staining use medium without FCS.</td>
		</tr>
		<tr >
			<td >EDTA (0.02%) solution</td>
			<td >Sigma</td>
			<td >E8008</td>
			<td>Store at 4&#176;C. Warm in 37&#176;C water bath before use.</td>
		</tr>
		<tr >
			<td >Trypsin solution</td>
			<td >Sigma</td>
			<td >T4424</td>
			<td>Store at -20&#176;C in 2ml aliquots. Thaw at room temperature and use immediately.</td>
		</tr>
		<tr >
			<td >Cryovials</td>
			<td >Greiner bio-one</td>
			<td>2019-02</td>
			<td>Keep on ice before adding before adding cell suspension.</td>
		</tr>
		<tr >
			<td >Mr. Frosty Freezing Container</td>
			<td >Nalgene</td>
			<td >5100-0001</td>
			<td >Store at room temperature. When adding cryovials with cells store at -80&#176;C for 24h before transfrring cells to liquid nitrogen.</td>
		</tr>
		<tr >
			<td >Ibidi u-Slide VI (0.4), T/C treated, sterile</td>
			<td >Ibidi</td>
			<td >IB-80606</td>
			<td >Alternative models include glass capillaries, Cellix Biochips (www.cellixltd.com), BioFlux Plates (www.fluxionbio.com/bioflux/) and GlycoTech parallel plate flow chambers (http://www.glycotech.com/apparatus/parallel.html).</td>
		</tr>
		<tr >
			<td >Cell tracker green dye</td>
			<td >Life technologies</td>
			<td >C2925</td>
			<td>Store in 5&#181;l aliquots at -20&#176;C. Dilute in 5ml prewarmed (at 37&#176;C) MSCGM.</td>
		</tr>
		<tr >
			<td >Cell counting chambers</td>
			<td >Nexcelom</td>
			<td >SD-100</td>
			<td>Alternatively a haemocytometer can be used.</td>
		</tr>
		<tr >
			<td >Cellometer auto T4 cell counter</td>
			<td >Nexcelom</td>
			<td >Auto T4-203-0238</td>
			<td></td>
		</tr>
		<tr >
			<td >Tumor necrosis factor &#945; (TNF&#945;)</td>
			<td >R&#38;D Systems</td>
			<td >210-TA-100</td>
			<td>Dilute stock in PBS to a final concentration of 100,000U/ml. Store at -80&#176;C in 10&#181;l aliquots.</td>
		</tr>
		<tr >
			<td >6-well, 0.4&#181;m PET Transwell filters</td>
			<td >SLS</td>
			<td >353090</td>
			<td></td>
		</tr>
		<tr >
			<td >K2-EDTA in 10ml tubes</td>
			<td >Sarstedt</td>
			<td ></td>
			<td>Store at room temperature.</td>
		</tr>
		<tr >
			<td >Histopaque 1119</td>
			<td >Sigma</td>
			<td >11191</td>
			<td>Store at 4&#176;C. Warm to room temperature before use.</td>
		</tr>
		<tr >
			<td >Histopaque 1077</td>
			<td >Sigma</td>
			<td >10771</td>
			<td>Store at 4&#176;C. Warm to room temperature before use.</td>
		</tr>
		<tr >
			<td >10ml round bottomed tube</td>
			<td >Appleton Woods</td>
			<td >SC211 142 AS</td>
			<td></td>
		</tr>
		<tr >
			<td >7.5% BSA Fraction V solution</td>
			<td >Life technologies</td>
			<td >15260-037</td>
			<td>Store at 4&#176;C.</td>
		</tr>
		<tr >
			<td >20ml Plastipak syringes</td>
			<td >BD falcon</td>
			<td >300613</td>
			<td></td>
		</tr>
		<tr >
			<td >5ml Plastipak syringes</td>
			<td >BD falcon</td>
			<td >302187</td>
			<td></td>
		</tr>
		<tr >
			<td >2ml Plastipak syringes</td>
			<td >BD falcon</td>
			<td >300185</td>
			<td></td>
		</tr>
		<tr >
			<td >3M hypo-allergenic surgical tape 9m x 2.5cm</td>
			<td >Micropore</td>
			<td >1530-1</td>
			<td>Use to secure the syringe tap onto the wall of the perspex chamber.</td>
		</tr>
		<tr >
			<td >Silicon rubber tubing, internal diameter/external diameter (ID/OD) of 1/3mm (thin tubing)</td>
			<td >Fisher Scientific</td>
			<td >FB68854</td>
			<td >Cut silicon tubing to the appropriate size. All tubing leading directly to the electronic microvalve must be thin.</td>
		</tr>
		<tr >
			<td >Silicon rubber tubing ID/OD of 2/4mm (thick tubing)</td>
			<td >Fisher Scientific</td>
			<td >FB68855</td>
			<td></td>
		</tr>
		<tr >
			<td >Portex Blue Line Manometer tubing</td>
			<td>Smiths</td>
			<td >200/495/200</td>
			<td>Tubing leading to the syringe pump.</td>
		</tr>
		<tr >
			<td >3-way stopcock</td>
			<td >BOC Ohmeda AB</td>
			<td ></td>
			<td></td>
		</tr>
		<tr >
			<td >Glass 50ml syringe for pump</td>
			<td >Popper Micromate</td>
			<td >550962</td>
			<td>Must be primed prior to use by removing any air bubbles.</td>
		</tr>
		<tr >
			<td >Glass coverslip</td>
			<td >Raymond A Lamb</td>
			<td ></td>
			<td>26x76mm coverslips made to order. Lot number 2440980.</td>
		</tr>
		<tr >
			<td >Parafilm gasket</td>
			<td >American National Can Company</td>
			<td ></td>
			<td >Cut a 26x76mm piece of parafilm using an aluminium template and cut a 20x4mm slot into it using a scalpel 10a. Gasket thickness is approximately 133&#181;m.</td>
		</tr>
		<tr >
			<td >Two perspex parallel plates</td>
			<td >Wolfson Applied Technology Laboratory</td>
			<td ></td>
			<td >Specially designed chamber consisting of parallel plates held together by 8 screws. The lower plate has a viewing slot cut out in the middle and a shallow recess milled to allow space for the coverslip, filter and gasket. The upper perspex plate has an inlet and outlet hole positioned over the flow channel.</td>
		</tr>
		<tr >
			<td >Electronic 3-way microvalve with min. dead space</td>
			<td >Lee Products Ltd.</td>
			<td >LFYA1226032H</td>
			<td>Electronically connected to a 12 volt DC power supply.</td>
		</tr>
		<tr >
			<td >Syringe pump for infusion/withdrawal (PHD2000)</td>
			<td >Harvard Apparatus</td>
			<td >70-2001</td>
			<td>Set the diameter to 29mm and refill (flow) rate.</td>
		</tr>
		<tr >
			<td >L-shaped connector</td>
			<td >Labhut</td>
			<td >LE876</td>
			<td>To attach to the inlet and outlet ports onto the Ibidi microslide channel.</td>
		</tr>
		<tr >
			<td >Video camera</td>
			<td >Qimaging</td>
			<td >01-QIC-F-M-12-C</td>
			<td>Connected to a computer which enables digitall videos to be recorded.</td>
		</tr>
		<tr >
			<td >Image-Pro Plus 7.0</td>
			<td >Media Cybernetics</td>
			<td >41N70000-61592</td>
			<td >For data analysis. Manually tag cells displaying the different behaviors. Track cells for analysis of rolling and migration velocities.</td>
		</tr>
		<tr >
			<td ></td>
			<td ></td>
			<td ></td>
			<td>Refer to product datasheets for details on hazards of using the reagents described here.</td>
		</tr>
	</tbody>
</table>

analyzing the effects of stromal cells on the recruitment of leukocytes from flow

Stromal hücreler, komşu endotel hücreleri ile çapraz konuşma ile inflamasyon sırasında, dolaşımdaki lökositlerin işe düzenler. Burada iltihaplı endotel hücreleri tarafından akışından nötrofillerin dolaşımdaki işe okuyan iki in vitro &quot;vasküler&quot; modelleri açıklar. Bu modellerin önemli bir avantajı, in vivo olarak meydana gelen gibi, sırayla lökosit yapışma kademeli olarak her adımda analiz yeteneğidir. Biz de hem modeller lökosit düzenleyen, bu durumda mezenkimal kök hücrelerin (MSC) stromal hücrelerin rolü, çalışma adapte edilebilir açıklanmıştır. Primer endotelyal hücreleri, Ibidi lamlara veya 24 saat süre ile bir Transwell filtrenin ters tarafta doğrudan temas eden insan MSC ile tek başına veya birlikte kültürlenmiştir. Kültürler, 4 saat süre ile, tümör nekroz faktörü alfa (TNFa) ile uyarılır ve bir akım bazlı yapışma deneyinde dahil edilmiştir. Nötrofil bolus serpildi4 dakika için endotel üzerinde. nötrofil ve endotel ile etkileşimlerini akan yakalama faz-kontrast mikroskobu ile görüntülendi. Her iki modelde de, sitokin uyarım, doza bağımlı bir şekilde akan nötrofil endotel işe artmıştır. Işe nötrofillerin davranış analizi haddeleme doza bağımlı azalma, endotelyum içinden geçişe doza bağımlı bir artış göstermiştir. Ko-kültür olarak, MSC TNFa-uyarılmış endotele nötrofil yapışma bastırdı. Bizim akış tabanlı-yapışma modelleri dolaşımdan lökosit işe başlangıç ​​aşamalarını taklit. Lökosit ek olarak, bu tür terapötik olarak uygulandığı, MSC veya dolaşımdaki tümör hücreleri gibi diğer hücre türleri, işe incelemek için kullanılabilir. Çok katmanlı ko-kültür modelleri MSC pro-enflamatuar sitokinlerin tepkilerini değiştirmek için endotel ile iletişim göstermiştir, alterinötrofil işe ng. Bu tür modeller kullanılarak daha fazla araştırma tamamen farklı doku ve koşullar (inflamatuar bozukluklar veya kanser) için nasıl stromal hücreler anlamak enflamasyon sırasında lökositlerin etkilemek için gereklidir.

Başlangıçta, biz Ibidi mikroslayd modeli (- 9 Bölüm 7) kullanılarak akışından nötrofillerin istihdamı TNFa ile AK uyarıcı etkisi analiz. TNFa, herhangi bir nötrofiller endotel tek tabaka yapıştırılır eğer biraz (Şekil 2A) yokluğunda. Bu 25,26 bağlayıcı desteklemek için gerekli yapışma molekülleri (selektinler) veya kemokinleri ifade etmeyen AK dinlenme / işlenmemiş olarak, bekleniyordu. Bunun aksine, sitokin uyarım önemli bir doza bağlı bir ...

Watch this Scientific Journal Video about Analyzing the Effects of Stromal Cells on the Recruitment of Leukocytes from Flow at JoVE.com

Analyzing the Effects of Stromal Cells on the Recruitment of Leukocytes from Flow

akışından lökositleri için iltihaplı endotel kabiliyeti mezenkimal stromal hücreler tarafından düzenlenir. Biz akışından nötrofil işe değerlendirmek ve mezenkimal stromal hücreler bu süreci düzenleyen oynadığı rolü incelemek için kullanılabilir birincil insan hücreleri içeren iki in vitro model tarif.

Akış adlı lökositlerin üzerine Stromal hücreler Etkilerinin İncelenmesi

Stromal cells regulate the recruitment of circulating leukocytes during inflammation through cross-talk with neighboring endothelial cells. Here we ...

analyzing-effects-stromal-cells-on-recruitment-leukocytes-from

Research

JoVE Journal

Immunology and Infection

10.1K Görüntüleme.  University of Birmingham.  akışından lökositleri için iltihaplı endotel kabiliyeti mezenkimal stromal hücreler tarafından düzenlenir. Biz akışından nötrofil işe değerlendirmek ve mezenkimal stromal hücreler bu süreci düzenleyen oynadığı rolü incelemek için kullanılabilir birincil insan hücreleri içeren iki in vitro model tarif. 