Name: real-time imaging of leukotriene b4 mediated cell migration and blt1 interactions with &beta;-arrestin
Uploaded: 2010-12-23T15:00:00
Description: Watch this Scientific Journal Video about Real-time Imaging of Leukotriene B4 Mediated Cell Migration and BLT1 Interactions with ÃŽÂ²-arrestin at JoVE.com

研究は、健康補助AI - 52381、CA138623とケンタッキー肺癌研究会とジェームズグラハムブラウンがんセンターの施設支援の国立研究所によってサポートされています。

方法顕微鏡の説明ライブセルイメージング実験では、Eclipse TE300ニコン倒立顕微鏡に接続されたTE - FM落射蛍光システムを使用して実行。顕微鏡は、加熱ステージを装備。クールなスナップHQデジタルB / W CCD（ローパーサイエンティフィック）カメラとLAMDA 10月2日光学フィルターチェンジャー（サター機器の会社）は、顕微鏡に接続されている。励起および...

<ol>
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D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=BLT1+and+BLT2:+the+leukotriene+B(4)+receptors.">BLT1 and BLT2: the leukotriene B(4) receptors.</a> Prostaglandins Leukot Essent Fatty Acids. 69, 123-134 (2003).</li><li>Toda, A., Yokomizo, T., Shimizu, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Leukotriene+B4+receptors.">Leukotriene B4 receptors.</a> Prostaglandins Other Lipid Mediat. 68-69, 575-585 (2002).</li><li>Haribabu, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Targeted+disruption+of+the+leukotriene+B(4)+receptor+in+mice+reveals+its+role+in+inflammation+and+platelet-activating+factor-induced+anaphylaxis.">Targeted disruption of the leukotriene B(4) receptor in mice reveals its role in inflammation and platelet-activating factor-induced anaphylaxis.</a> J Exp Med. 192, 433-438 (2000).</li><li>Subbarao, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Role+of+leukotriene+B4+receptors+in+the+development+of+atherosclerosis:+potential+mechanisms.">Role of leukotriene B4 receptors in the development of atherosclerosis: potential mechanisms.</a> Arterioscler Thromb Vasc Biol. 24, 369-375 (2004).</li><li>Jala, V. R., Haribabu, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Leukotrienes+and+atherosclerosis:+new+roles+for+old+mediators.">Leukotrienes and atherosclerosis: new roles for old mediators.</a> Trends Immunol. 25, 315-322 (2004).</li><li>Heller, E. A. <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+atherogenesis+in+BLT1-deficient+mice+reveals+a+role+for+LTB4+and+BLT1+in+smooth+muscle+cell+recruitment.">Inhibition of atherogenesis in BLT1-deficient mice reveals a role for LTB4 and BLT1 in smooth muscle cell recruitment.</a> Circulation. 112, 578-586 (2005).</li><li>Miyahara, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Requirement+for+leukotriene+B4+receptor+1+in+allergen-induced+airway+hyperresponsiveness.">Requirement for leukotriene B4 receptor 1 in allergen-induced airway hyperresponsiveness.</a> Am J Respir Crit Care Med. 172, 161-167 (2005).</li><li>Terawaki, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Absence+of+leukotriene+B4+receptor+1+confers+resistance+to+airway+hyperresponsiveness+and+Th2-type+immune+responses.">Absence of leukotriene B4 receptor 1 confers resistance to airway hyperresponsiveness and Th2-type immune responses.</a> J Immunol. 175, 4217-4225 (2005).</li><li>Shao, W. H., Del Prete, A., Bock, C. B., Haribabu, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Targeted+disruption+of+leukotriene+B4+receptors+BLT1+and+BLT2:+a+critical+role+for+BLT1+in+collagen-induced+arthritis+in+mice.">Targeted disruption of leukotriene B4 receptors BLT1 and BLT2: a critical role for BLT1 in collagen-induced arthritis in mice.</a> J Immunol. 176, 6254-6261 (2006).</li><li>Kim, N. D., Chou, R. C., Seung, E., Tager, A. M., Luster, A. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+unique+requirement+for+the+leukotriene+B4+receptor+BLT1+for+neutrophil+recruitment+in+inflammatory+arthritis.">A unique requirement for the leukotriene B4 receptor BLT1 for neutrophil recruitment in inflammatory arthritis.</a> J Exp Med. 203, 829-835 (2006).</li><li>Jala, V. R., Shao, W. H., Haribabu, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Phosphorylation-independent+beta-arrestin+translocation+and+internalization+of+leukotriene+B4+receptors.">Phosphorylation-independent beta-arrestin translocation and internalization of leukotriene B4 receptors.</a> J Biol Chem. 280, 4880-4887 (2005).</li><li>Jala, V. R., Haribabu, 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+analysis+of+G+protein-coupled+receptor+signaling+in+live+cells.">Real-time analysis of G protein-coupled receptor signaling in live cells.</a> Methods Mol Biol. 332, 159-165 (2006).</li><li>Del Prete, A., A, . <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Regulation+of+dendritic+cell+migration+and+adaptive+immune+response+by+leukotriene+B4+receptors:+a+role+for+LTB4+in+up-regulation+of+CCR7+expression+and+function.">Regulation of dendritic cell migration and adaptive immune response by leukotriene B4 receptors: a role for LTB4 in up-regulation of CCR7 expression and function.</a> Blood. 109, 626-631 (2007).</li><li>Salogni, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Activin+A+induces+dendritic+cell+migration+through+the+polarized+release+of+CXC+chemokine+ligands+12+and+14.">Activin A induces dendritic cell migration through the polarized release of CXC chemokine ligands 12 and 14.</a> Blood. 113, 5848-5856 (2009).</li><li>Boudreau, J., Koshy, S., Cummings, D., Wan, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Culture+of+myeloid+dendritic+cells+from+bone+marrow+precursors.">Culture of myeloid dendritic cells from bone marrow precursors.</a> J Vis Exp. , (2008).</li></ol>

ライブセルイメージングが発生したときに、リアルタイムで特定のタンパク質の機能と相互作用を実証するために強力なツールです。この原稿で説明する方法は明らかにLTB 4は、樹状細胞の迅速な移行を誘導できることを示している。これらのメソッドは、唯一の多様な細胞型にLTB 4の機能の側面を展開していない、彼らは同じような方法が他のケモカインの様々に適用する?...

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		<div>
		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<tr>
<td>Cell lines:</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Rat Basophilic Leukomia Cell line (RBL-2H3) or HEK293 cells.</td>
<td>&nbsp;</td>
<td>ATCC</td>
<td>CRL-2256</td>
<td>&nbsp;</td>
<tr>
<td>Media:</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Delbecco's modified Eagle&#x2019;s Medium (DMEM)</td>
<td>&nbsp;</td>
<td>Invitrogen</td>
<td>11995</td>
<td>&nbsp;</td>
<tr>
<td>Phenol red free RPMI or DMEM</td>
<td>&nbsp;</td>
<td>Invitrogen</td>
<td>11835-030</td>
<td>&nbsp;</td>
<tr>
<td>Fetal Bovine Serum</td>
<td>&nbsp;</td>
<td>Invitrogen</td>
<td>16000-044</td>
<td>&nbsp;</td>
<tr>
<td>L-Glutamine (200 mM)</td>
<td>&nbsp;</td>
<td>Invitrogen</td>
<td>25030</td>
<td>&nbsp;</td>
<tr>
<td>Penicillin-streptomycin (10000 U/mL)</td>
<td>&nbsp;</td>
<td>Invitrogen</td>
<td>15140</td>
<td>&nbsp;</td>
<tr>
<td>Trypsin, 0.05% (1X) with EDTA 4Na, liquid</td>
<td>&nbsp;</td>
<td>Invitrogen</td>
<td>25300</td>
<td>&nbsp;</td>
<tr>
<td>HEPES (1M)</td>
<td>&nbsp;</td>
<td>Invitrogen</td>
<td>15630</td>
<td>&nbsp;</td>
<tr>
<td>Others:</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>35 mm sterile glass coverslip-bottomed Fluoro dishes (0.17 mm thick) (WillCo-dish)</td>
<td>&nbsp;</td>
<td>WPI</td>
<td>FD35-100</td>
<td>&nbsp;</td>
<tr>
<td>Sterile Gene Pulser Cuvette (0.4 cm electrode gap) (Bio-Rad)</td>
<td>&nbsp;</td>
<td>Bio-Rad</td>
<td>16552088</td>
<td>&nbsp;</td>
<tr>
<td>Instruments/software:</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Gene Pulser II electroporater </td>
<td>&nbsp;</td>
<td>Bio-Rad</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>TE-FM Epi-Fluorescence system attached to Nikon Inverted Microscope Eclipse TE300</td>
<td>&nbsp;</td>
<td>Nikon</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Metamorph Software</td>
<td>&nbsp;</td>
<td>Universal Imaging</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Vertical Micro-pipette puller</td>
<td>&nbsp;</td>
<td>Narishige International </td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Micro-Forge M-900</td>
<td>&nbsp;</td>
<td>Narishige International </td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Hadraulic Micromanipulator MO-188NE</td>
<td>&nbsp;</td>
<td>Narishige International </td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Coarse Manual Manipulator, MN-188NE</td>
<td>&nbsp;</td>
<td>Narishige International </td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>cDNA constructs:</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>cDNA of G-Protein coupled receptor tagged with red fluorescence protein at C-terminus (hBLT1-RFP)</td>
<td>&nbsp;</td>
<td>Jala et al 2005</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td> cDNA of cytosolic protein tagged with GFP (&beta;-arrestin1-GFP in present study).</td>
<td>&nbsp;</td>
<td>Jala et al 2005</td>
<td>&nbsp;</td>
<td>&nbsp;</td>		</tbody>
		</table>
		</div>

real-time imaging of leukotriene b4 mediated cell migration and blt1 interactions with &beta;-arrestin

G -タンパク質共役受容体（GPCR）は7回膜貫通型タンパク質ファミリーに属し、細胞内応答する細胞外シグナルの伝達を媒介する。 GPCRの制御などの走化性、細胞内カルシウムの放出、ヘテロ三量体G -タンパク質1から2を介してリガンド依存的に遺伝子の調節など、多様な生物学的機能。リガンドの結合は、そのようなサイクリックアデノシン一リン酸（cAMP）、イノシトール三リン酸（IP3）とジアシルグリセロール（DG）などのセカンドメッセンジャーのレベルを調節するヘテロ三量体G -タンパク質の活性化につながる立体構造変化のシリーズを誘導する。受容体のリガンド結合の活性化との併用はまた脱感作、隔離および/または内在化を介したシグナル受容体を減衰させる一連のイベントを開始します。 GPCRの脱感作のプロセスは、G -タンパク質の受容体キナーゼ（GRKs）とβ-アレスチン3のその後の結合による受容体のリン酸化を介して行われます。 β-アレスチンは、細胞質タンパク質であり、受容体の内在化4-6容易にすることで、そこに（ほとんどの場合）リン酸化受容体に結合し、GPCRの活性化によって細胞膜に転位する。 とLTB 4受容体2（BLT2、低親和性受容体、ロイコトリエンB 4（LTB 4）GPCRの、LTB 4受容体1（高親和性受容体BLT1）を介してアラキドン酸経路と媒介する、その行動から派生した炎症誘発性脂質分子である）7-9。 LTB 4 - BLT1経路は、喘息、関節炎、アテローム性動脈硬化症10-17日 、など、いくつかの炎症性疾患において重要であることが示されている。現在の紙は、LTB 4誘発性白血球遊走およびβ-アレスチンと、顕微鏡イメージング技術の18から19を用いて生細胞における受容体の転座を持つBLT1の相互作用を監視するために開発した方法論を説明します。 C57BL / 6マウスから樹状細胞を骨髄由来は、前述の20〜21として単離し、培養した。これらの細胞は、LTB 4による細胞遊走を示すために、生細胞イメージング法で試験した。人間のBLT1は、C -末端に赤色蛍光タンパク質（BLT1 - RFP）を付けられ、β- arrestin1は、緑色蛍光タンパク質（β- ARR - GFP）で標識し、ラット好塩基球Leukomia（RBL - 2H3）細胞株に両方のプラスミドをトランスフェクトした18-19これらのタンパク質とローカリゼーション間の相互作用のカイネティクスは、ライブセルビデオ顕微鏡を用いてモニターした。現在の論文の方法論は、生細胞におけるGタンパク質共役型受容体の機能的応答を調べるために顕微鏡技術の使用を説明しています。現在の紙はまた、受容体の動態と細胞質蛋白質の相互作用を決定するために蛍光強度を定量化するMetamorphソフトウェアの使用を説明します。

Watch this Scientific Journal Video about Real-time Imaging of Leukotriene B4 Mediated Cell Migration and BLT1 Interactions with ÃŽÂ²-arrestin at JoVE.com

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

本論文では、特定のリガンドへの白血球の走化性応答を決定し、生細胞イメージング技術を用いて細胞表面の受容体と細胞質のタンパク質間の相互作用を識別するための方法論を説明します。

ロイコトリエンBのリアルタイムイメージング 4介在細胞の移行とβ-アレスチンとBLT1の相互作用

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

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Immunology and Infection

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

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

複合体形成シグナリングT細胞のリアルタイムのライブイメージング

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

Monitoring Dendritic Cell Migration using 19F / 1H Magnetic Resonance Imaging

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使用して樹状細胞の移行の監視<sup&gt; 19</sup&gt; F /<sup&gt; 1</sup&gt; H磁気共鳴イメージング

Continuous  advancements in noninvasive imaging modalities such as magnetic resonance  imaging (MRI) have greatly improved our ability to study ...

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

Real-time Imaging of Myeloid Cells Dynamics in ApcMin/+ Intestinal Tumors by Spinning Disk Confocal Microscopy

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における骨髄細胞ダイナミクスのリアルタイムイメージング<em&gt;のApc<sup&gt;最小/ +</sup</em&gt;腸腫瘍ディスク共焦点顕微鏡スピニングすることにより

Myeloid cells are the most abundant immune cells within tumors and have been shown to promote tumor progression. Modern intravital imaging techniques ...

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炎症真皮における撮像CD4 T細胞間質への移行

The ability of CD4 T cells to carry out effector functions is dependent upon the rapid and efficient migration of these cells in inflamed peripheral ...

High Throughput, Real-time, Dual-readout Testing of Intracellular Antimicrobial Activity and Eukaryotic Cell Cytotoxicity

高スループット、リアルタイム、細胞内抗菌活性のデュアル読み出しテストおよび真核細胞の細胞毒性

Traditional measures of intracellular antimicrobial activity and eukaryotic cell cytotoxicity rely on endpoint assays. Such endpoint assays require ...

Real-time Imaging and Quantification of Fungal Biofilm Development Using a Two-Phase Recirculating Flow System

リアルタイム イメージングと二相循環フロー システムを用いた菌バイオ フィルム開発の定量

In oropharyngeal candidiasis, members of the genus Candida must adhere to and grow on the oral mucosal surface while under the effects of salivary flow. ...

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

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リアルタイム細胞解析を用いた宿主外でのインフルエンザウイルスの生存率のモニタリング

Methods for virus particle quantification represent a critical aspect of many virology studies. Although several reliable techniques exist, they are ...