Name: measuring near plasma membrane and global intracellular calcium dynamics in astrocytes
Uploaded: 2009-04-26T23:27:00
Description: Watch this Scientific Journal Video about Measuring Near Plasma Membrane and Global Intracellular Calcium Dynamics in Astrocytes at JoVE.com

この作品は、日本の財団法人上原記念生命科学財団（ESの）だけでなく、ホワイトホール財団、神経疾患や脳卒中の国立研究所とスタインハイマー基金賞（BSKまで）によってサポートされていました。

実験手順実験手順は以下のステップ賢明な方法で説明されている2つのキーの部分で構成されています。 パート1：はPREPARING海馬アストロサイトの培養簡単に言えば、混合海馬アストロサイトニューロン培養物を、十分に確立されたプロトコル1,2,3を用いて調製した。我々は、健全な培養アストロサイトを生成する手順を最適?...

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それは、アストロサイトは細胞内カルシウムの上昇を表示することが十分に確立されている。これらは自発的に発生する、アストロサイト表面11上の受容体を活性化するニューロンの活動によって、またはアゴニストのアプリケーションによってトリガーすることができます。一つの重要なと論争はアストロサイト細胞内カルシウムの上昇が神経細胞11、12に受容体を活性化するシグナル伝達...

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		<th>Catalogue Number</th>
		<th>Comment</th>
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<td>VWR&#174; Micro Cover Slips, Round, No. 1</td>
<td>Tool</td>
<td>VWR</td>
<td>48380-068</td>
<td>&nbsp;</td>
<tr>
<td>Poly-D-lysine hydrobromide</td>
<td>Reagent</td>
<td>Sigma</td>
<td>P0899</td>
<td>&nbsp;</td>
<tr>
<td>Laminin from Engelbreth-Holm-Swarm murine sarcoma basement membrane</td>
<td>Reagent</td>
<td>Sigma</td>
<td>L2020</td>
<td>&nbsp;</td>
<tr>
<td>Earle&#x2019;s Balanced Salt Solution (EBSS) (1X), liquid</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>14155-063</td>
<td>&nbsp;</td>
<tr>
<td>Minimum Essential Medium (MEM) (1X), liquid Contains Earle's salts, but no L-glutamine or phenol red</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>51200-038</td>
<td>&nbsp;</td>
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<td>Penicillin-Streptomycin liquid</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>15140-122</td>
<td>&nbsp;</td>
<tr>
<td>Sodium pyruvate solution</td>
<td>Reagent</td>
<td>Sigma</td>
<td>S8636</td>
<td>&nbsp;</td>
<tr>
<td>HEPES solution 1 M</td>
<td>Reagent</td>
<td>Sigma</td>
<td>H0887</td>
<td>&nbsp;</td>
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<td>N-2 Supplement (100X), liquid</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>17502-048</td>
<td>&nbsp;</td>
<tr>
<td>Horse Serum, Heat-Inactivated</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>26050-088</td>
<td>&nbsp;</td>
<tr>
<td>PAPAIN-022</td>
<td>Reagent</td>
<td>Worthington</td>
<td>LK003178</td>
<td>&nbsp;</td>
<tr>
<td>Neurobasal&#x2122; Medium (1X) Liquid without Phenol Red</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>12348-017</td>
<td>&nbsp;</td>
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<td>B-27 Serum-Free Supplement (50X), liquid</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>17504-044</td>
<td>&nbsp;</td>
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<td>L-Glutamine-200 mM (100X), liquid</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>25030-149</td>
<td>&nbsp;</td>
<tr>
<td>Cell Strainers</td>
<td>Tool</td>
<td>BD Biosciences</td>
<td>352350</td>
<td>&nbsp;</td>
<tr>
<td>BD Falcon Multiwell Flat-Bottom Plates with Lids, Sterile</td>
<td>Tool</td>
<td>BD Biosciences</td>
<td>353046</td>
<td>&nbsp;</td>
<tr>
<td>NaCl</td>
<td>Reagent</td>
<td>Sigma</td>
<td>S7653</td>
<td>&nbsp;</td>
<tr>
<td>KCl</td>
<td>Reagent</td>
<td>Sigma</td>
<td>P3911</td>
<td>&nbsp;</td>
<tr>
<td>CaCl2 hexahydrate</td>
<td>Reagent</td>
<td>Sigma</td>
<td>21108</td>
<td>&nbsp;</td>
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<td>MgCl2 hexahydrate</td>
<td>Reagent</td>
<td>Sigma</td>
<td>M2670</td>
<td>&nbsp;</td>
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<td>HEPES free acid</td>
<td>Reagent</td>
<td>Sigma</td>
<td>H3375</td>
<td>&nbsp;</td>
<tr>
<td>D-(+)-glucose</td>
<td>Reagent</td>
<td>Sigma</td>
<td>G7528</td>
<td>&nbsp;</td>
<tr>
<td>Fluo-4, AM 1 mM solution in DMSO</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>F-14217</td>
<td>&nbsp;</td>
<tr>
<td>Pluronic&#174; F-127 20% solution in DMSO</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>P-3000MP</td>
<td>&nbsp;</td>
<tr>
<td>Immersion Oil TYPE DF</td>
<td>Microscope</td>
<td>Cargille</td>
<td>16242</td>
<td>&nbsp;</td>
<tr>
<td>Open chamber for 25 mm round coverslips, 100 &mu;l volume</td>
<td>Tool</td>
<td>WARNER Instruments</td>
<td>64-0362 (RC-21BDW)</td>
<td>&nbsp;</td>
<tr>
<td>P-2 platform for Series 20 chambers, non-heater</td>
<td>Tool</td>
<td>WARNER Instruments</td>
<td>64-0278 (P-2)</td>
<td>&nbsp;</td>
<tr>
<td>FluoSpheres carboxylate-modified microspheres, 0.1 &mu;m, yellow-green fluorescent (505/515) 2% solids</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>F8803</td>
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measuring near plasma membrane and global intracellular calcium dynamics in astrocytes

脳は、グリア細胞が含まれています。アストロサイト、グリア細胞の種類は、神経細胞に受動的な支援する役割を提供するために長い間知られている。しかし、増加する証拠は、アストロサイトはまた、積極的に神経細胞との機能的な相互作用を介して脳機能に関与する可能性を示唆している。しかし、アストロサイト生物学の多くの基本的な側面は、議論の不明確及び/または実験的に未踏のまま。重要な問題の1つは、アストロサイトにおける細胞内カルシウムトランジェントのダイナミクスである。カルシウムが十分に重要なセカンドメッセンジャーとして確立されているため、それがアストロサイトのカルシウムの上昇は、アストロサイトからの伝達物質の遊離を引き起こすことができることが提案されているので、これは関連しています。しかし、アストロサイトのシグナル伝達の近くに、細胞膜のカルシウムの任意の詳細や満足な説明がされていません。全内部反射蛍光（全反射）顕微鏡は、生きた細胞の原形質膜の約100nm内で生理学的に関連するシグナル伝達事象を分析するための強力なツールです。ここでは、全反射顕微鏡を使用し、ほぼ同時に形質膜とグローバルな細胞内カルシウム動態の近くに監視する方法について説明します。このアプローチのさらなる改良と体系的なアプリケーションは、アストロサイトのカルシウムシグナル伝達の正確な詳細をお知らせする可能性があります。アストロサイトのカルシウム動態の詳細な理解は、次の場合に、どのように、いつ、なぜアストロサイトとニューロンはカルシウム依存性の機能的相互作用を受ける理解する基礎を提供することがあります。

Watch this Scientific Journal Video about Measuring Near Plasma Membrane and Global Intracellular Calcium Dynamics in Astrocytes at JoVE.com

Measuring Near Plasma Membrane and Global Intracellular Calcium Dynamics in Astrocytes

我々は内部全反射し、落射蛍光顕微鏡を用いて培養アストロサイトにおける膜とグローバルな細胞内カルシウム動態の近くで測定する方法について説明します。

アストロサイトの細胞膜とグローバル細胞内カルシウム動態の近くの測定

The brain contains glial cells.  Astrocytes, a type of glial cell, have long been known to provide a passive supportive role to neurons. However, ...

Research

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Biology

Measuring Plasma Membrane Protein Endocytic Rates by Reversible Biotinylation

リバーシブルビオチン化によって原形質膜タンパク質エンドサイトーシス率を測定

Plasma membrane proteins are a large, diverse group of proteins comprised of receptors, ion channels, transporters and pumps.  Activity of these proteins ...

Measuring Fast Calcium Fluxes in Cardiomyocytes

心筋細胞における高速カルシウムフラックスの測定

Cardiomyocytes have multiple Ca2+ fluxes of varying duration that work together to optimize function 1,2. Changes in Ca2+ activity in response to ...

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing (MTT)

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing MTT

複数のターゲットトレース（MTT）による原形質膜中の分子拡散のマッピング

Our goal is to obtain a comprehensive description of molecular processes occurring at cellular membranes in different biological functions. We aim at ...

Intravital Microscopy for Imaging Subcellular Structures in Live Mice Expressing Fluorescent Proteins

蛍光タンパク質を発現する生きたマウスでのイメージング細胞内の構造物の生体顕微鏡

Here we describe a procedure to image subcellular structures in live rodents that is based on the use of confocal intravital microscopy. As a model organ, ...

Imaging Plasma Membrane Deformations With pTIRFM

pTIRFMによる画像形成細胞膜変形は

To gain novel insights into the dynamics of exocytosis, our group focuses on the changes in lipid bilayer shape that must be precisely regulated during ...

Functional Characterization of Na+/H+ Exchangers of Intracellular Compartments Using Proton-killing Selection to Express Them at the Plasma Membrane

Functional Characterization of Na+/H+ Exchangers of Intracellular Compartments Using Proton-killing Selection to Express Them at the Plasma Membrane

ナの機能的特徴<sup&gt; +</sup&gt; / H<sup&gt; +</sup細胞膜でそれらを表現するためにプロトン殺す選択を使用した細胞内区画の&gt;交換器

Endosomal acidification is critical for a wide range of processes, such as protein recycling and degradation, receptor desensitization, and ...

Determination of Plasma Membrane Partitioning for Peripherally-associated Proteins

細胞膜の末梢関連タンパク質の分割の決定

This method provides a fast approach for the determination of plasma membrane partitioning of any fluorescently-tagged peripherally-associated protein ...

Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis

ネクロトーシス MLKL を介した細胞膜破壊の解析

Necroptosis is a programmed cell death pathway triggered by activation of receptor interacting protein kinase 3 (RIPK3), which phosphorylates and ...

Simultaneous Measurements of Intracellular Calcium and Membrane Potential in Freshly Isolated and Intact Mouse Cerebral Endothelium

細胞内カルシウムと新鮮な分離とそのままマウス脳血管内皮細胞の膜電位の同時計測

Cerebral arteries and their respective microcirculation deliver oxygen and nutrients to the brain via blood flow regulation. Endothelial cells line the ...

Imaging Calcium Dynamics in Subpopulations of Mouse Pancreatic Islet Cells

マウス膵島細胞の亜集団におけるカルシウムダイナミクスのイメージング

Pancreatic islet hormones regulate blood glucose homeostasis. Changes in blood glucose induce oscillations of cytosolic calcium in pancreatic islet cells ...