Name: the indirect neuron-astrocyte coculture assay: an in vitro set-up for the detailed investigation of neuron-glia interactions
Uploaded: 2016-11-14T14:00:00
Description: Watch this Scientific Journal Video about The Indirect Neuron-astrocyte Coculture Assay: An In Vitro Set-up for the Detailed Investigation of Neuron-glia Interactions at JoVE.com

The present work was supported by the German research foundation (Deutsche Forschungsgemeinschaft DFG: GRK 736, Fa 159/22-1; the research school of the Ruhr University Bochum (GSC98/1) and the priority program SSP 1172 "Glia and Synapse", Fa 159/11-1,2,3).

Gli esperimenti con i topi erano in conformità con la legge tedesca e la Società tedesca per le linee guida Neuroscience di allevamento. La cura degli animali e di utilizzo comitati del Università della Ruhr a Bochum hanno concesso i permessi appropriati. 1. Preparazione e coltivazione di corticale astrociti Nota: Completate queste fasi del protocollo almeno 7 d prima di procedere alle fasi successive, come le colture di astrociti dovrebbero svilupparsi in monos...

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L&#39;obiettivo principale del protocollo attuale è quello di colture neuronali e astrociti completamente separati, mentre li mantenendo in mezzo condiviso. Per questo motivo, la purezza delle colture ottenute vanno verificate all&#39;inizio del procedimento. Si consiglia l&#39;uso di tubulina specifica dei neuroni, neurofilamenti o proteine ​​NeuN come marcatori neuronali, GFAP come marcatore astrociti, O4 antigene come marcatore degli oligodendrociti precursore e proteine ​​Iba1 per identificare microglia. </...

Nel corso degli ultimi decenni, l&#39;interpretazione generale della funzione nevroglia si è evoluta da l&#39;attribuzione di un solo supporto verso un ruolo regolatore attivo per quanto riguarda la funzione neuronale 1. A causa del loro impatto di rilievo sulla omeostasi del cervello in salute e malattia 2, astrociti sono di particolare interesse per la comunità scientifica. Negli ultimi anni, una diversità di studi si sono concentrati sulle interazioni neuroni-glia in vivo e in vitro 3. Tuttavia, la maggior parte dei sistemi di coltura non consentono per l&#39;analisi separata delle due tipi cellulari e dei rispettivi secretomes. Diversi approcci sfruttano la co-coltivazione diretta dei neuroni e glia per raggiungere la sopravvivenza di lunga durata e fisiologicamente rilevanti di sviluppo della rete neuronale 4-6. Il presente protocollo raggiunge gli stessi obiettivi, mantenendo entrambi i tipi di cellule separate fisicamente 7. Rispetto al conditioned media si avvicina a 8,9, il nostro sistema permette di studiare la comunicazione bidirezionale tra neuroni e astrociti. L&#39;espressione di molecole di segnalazione secrete può essere monitorato mentre le cellule maturare nel mezzo condiviso. Questa opportunità è particolarmente rilevante, come astrociti rilasciano fattori solubili, come le citochine, fattori di crescita e molecole della matrice extracellulare 10,11, regolando così la crescita neuronale e funzionano 7,12. Pertanto, è stato dimostrato che l&#39;aggiunta di trombospondina alle cellule gangliari retiniche in vitro induce la formazione di sinapsi 13. Tuttavia, sono necessari per rendere sinapsi funzionali 13 altri fattori ancora sconosciuti. Inoltre, molecole rilasciate dagli astrociti devono essere identificati al fine di comprendere la base delle interazioni neuroni-glia. La coltivazione di neuroni primari e astrociti di topo e ratto è stato descritto in precedenza 14-16. Qui noipresentare uno strumento elegante e versatile per combinare entrambi i tipi cellulari in un approccio co-coltura indiretta. Poiché le due culture sono fisicamente separati ancora condividere lo stesso mezzo, l&#39;impatto di neuroni, astrociti e molecole solubili, possono essere analizzate separatamente, creando così un potente strumento per studi di interazione neuroni-glia.

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			<td height="41" style="height:41px;width:115px;">Reagents</td>
			<td style="width:152px;"></td>
			<td style="width:151px;"></td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:115px;">B27</td>
			<td style="width:152px;">Gibco (Life Technologies)</td>
			<td style="width:151px;">17504-044</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="84">
			<td height="84" style="height:84px;width:115px;">Cell culture grade water</td>
			<td style="width:152px;">MilliQ</td>
			<td style="width:151px;"></td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="84">
			<td height="84" style="height:84px;width:115px;">Cell culture grade water</td>
			<td style="width:152px;">MilliQ</td>
			<td style="width:151px;"></td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="105">
			<td height="105" style="height:105px;width:115px;">Cytosine-&#223;-D arabinofuranoside (AraC)</td>
			<td style="width:152px;">Sigma-Aldrich</td>
			<td style="width:151px;">C1768</td>
			<td style="width:191px;">CAUTION: H317, H361</td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:115px;">DMEM</td>
			<td style="width:152px;">Gibco (Life Technologies)&#160;</td>
			<td style="width:151px;">41966-029</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">DNAse</td>
			<td style="width:152px;">Worthington</td>
			<td style="width:151px;">LS002007</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Gentamycin</td>
			<td style="width:152px;">Sigma-Aldrich</td>
			<td style="width:151px;">G1397</td>
			<td style="width:191px;">CAUTION: H317-334</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">Glucose</td>
			<td style="width:152px;">Serva</td>
			<td style="width:151px;">22700</td>
			<td style="width:191px;"></td>
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		<tr height="63">
			<td height="63" style="height:63px;width:115px;">HBSS</td>
			<td style="width:152px;">Gibco (Life Technologies)</td>
			<td style="width:151px;">14170-088</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:115px;">HEPES</td>
			<td style="width:152px;">Gibco (Life Technologies)</td>
			<td style="width:151px;">15630-056</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Horse serum</td>
			<td style="width:152px;">Biochrom AG</td>
			<td style="width:151px;">S9135</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">L-Cysteine</td>
			<td style="width:152px;">Sigma-Aldrich</td>
			<td style="width:151px;">C-2529</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:115px;">MEM</td>
			<td style="width:152px;">Gibco (Life Technologies)</td>
			<td style="width:151px;">31095-029</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Ovalbumin</td>
			<td style="width:152px;">Sigma-Aldrich</td>
			<td style="width:151px;">A7641</td>
			<td style="width:191px;">CAUTION: H334</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Papain</td>
			<td style="width:152px;">Worthington</td>
			<td style="width:151px;">3126</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">PBS</td>
			<td style="width:152px;">self-made&#160;</td>
			<td style="width:151px;"></td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Poly-D-lysine</td>
			<td style="width:152px;">Sigma-Aldrich</td>
			<td style="width:151px;">P0899</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Poly-L-ornithine</td>
			<td style="width:152px;">Sigma-Aldrich</td>
			<td style="width:151px;">P3655</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Sodium pyruvate</td>
			<td style="width:152px;">Sigma-Aldrich</td>
			<td style="width:151px;">S8636</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:115px;">Trypsin-EDTA</td>
			<td style="width:152px;">Gibco (Life Technologies)</td>
			<td style="width:151px;">25300054</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">Equipment</td>
			<td style="width:152px;"></td>
			<td style="width:151px;"></td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">24 well plates</td>
			<td style="width:152px;">Thermoscientific/Nunc</td>
			<td style="width:151px;">142475</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:115px;">24-wells plate (for the&#160; indirect co-culture)</td>
			<td style="width:152px;">BD Falcon</td>
			<td style="width:151px;">353504</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Binocular</td>
			<td style="width:152px;">Leica</td>
			<td style="width:151px;">MZ6</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Cell-culture inserts</td>
			<td style="width:152px;">BD Falcon</td>
			<td style="width:151px;">353095</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">Centrifuge</td>
			<td style="width:152px;">Heraeus</td>
			<td style="width:151px;">Multifuge 3S-R</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Counting Chamber</td>
			<td style="width:152px;">Marienfeld</td>
			<td style="width:151px;">650010</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">Forceps</td>
			<td style="width:152px;">FST Dumont (#5)</td>
			<td style="width:151px;">11254-20</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">glass cover slips (12 mm)</td>
			<td style="width:152px;">Carl Roth (Menzel- Gl&#228;ser)</td>
			<td style="width:151px;">P231.1</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Incubator</td>
			<td style="width:152px;">Thermo Scientific</td>
			<td style="width:151px;">Heracell 240i</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Micro tube (2 ml)</td>
			<td style="width:152px;">Sarstedt</td>
			<td style="width:151px;">72,691</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">Microscope</td>
			<td style="width:152px;">Leica</td>
			<td style="width:151px;">DMIL</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Millex Syringe-driven filter unit</td>
			<td style="width:152px;">Millipore</td>
			<td style="width:151px;">SLGV013SL</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Orbital shaker</td>
			<td style="width:152px;">New Brunswick Scientific</td>
			<td style="width:151px;">Innova 4000</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">Parafilm</td>
			<td style="width:152px;">Bemis</td>
			<td style="width:151px;">PM-996</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Petri dishes (10 cm)</td>
			<td style="width:152px;">Sarstedt</td>
			<td style="width:151px;">833,902</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">pipette (1 ml)</td>
			<td style="width:152px;">Gilson</td>
			<td style="width:151px;">Pipetman 1000</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Sterile work bench</td>
			<td style="width:152px;">The Baker Company</td>
			<td style="width:151px;">Laminar Flow SterilGARD III</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Surgical scissors</td>
			<td style="width:152px;">FST Dumont</td>
			<td style="width:151px;">14094-11</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">Syringe</td>
			<td style="width:152px;">Henry Schein</td>
			<td style="width:151px;">9003016</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">T75 flask</td>
			<td style="width:152px;">Sarstedt</td>
			<td style="width:151px;">833,911,002</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:115px;">tube (15 ml)</td>
			<td style="width:152px;">Sarstedt</td>
			<td style="width:151px;">64,554,502</td>
			<td style="width:191px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:115px;">Water bath</td>
			<td style="width:152px;">GFL</td>
			<td style="width:151px;">Water bath type 1004</td>
			<td style="width:191px;"></td>
		</tr>
	</tbody>
</table>

the indirect neuron-astrocyte coculture assay: an in vitro set-up for the detailed investigation of neuron-glia interactions

Corretto sviluppo e la funzione neuronale è il presupposto di sviluppo e il cervello adulto. Tuttavia, i meccanismi alla base della formazione altamente controllato e manutenzione di reti neuronali complesse sono state comprese finora. Le questioni aperte in materia di neuroni nella salute e nella malattia sono diversi e si estende da comprendere lo sviluppo di base per indagare le patologie legate umani, per esempio, il morbo di Alzheimer e la schizofrenia. L&#39;analisi più dettagliata dei neuroni può essere eseguita in vitro. Tuttavia, i neuroni sono esigenti cellule e hanno bisogno del sostegno supplementare degli astrociti per la loro sopravvivenza a lungo termine. Questa eterogeneità cellulare è in conflitto con l&#39;obiettivo di analizzare l&#39;analisi di neuroni e astrociti. Presentiamo qui un test di coltura cellulare che consente la co-coltivazione a lungo termine di neuroni primari puri e astrociti, che condividono lo stesso mezzo chimicamente definito, pur essendo fisicamenteseparato. In questa configurazione, le culture sopravvivono per un massimo di quattro settimane e il test è adatto per una varietà di indagini riguardanti l&#39;interazione neuroni-glia.

L&#39;analisi delle colture neuronali tramite il sistema di co-coltura indiretta è multiforme e può essere eseguita in diverse fasi della cultura stagionatura. A causa del fatto che le cellule possono essere mantenute fino a 4 settimane, indagini a lungo termine delle culture sono possibili. Lo schema del pannello centrale sinistro della figura 1 mostra la configurazione co-coltivazione. Con l&#39;uso di que...

Watch this Scientific Journal Video about The Indirect Neuron-astrocyte Coculture Assay: An In Vitro Set-up for the Detailed Investigation of Neuron-glia Interactions at JoVE.com

The Indirect Neuron-astrocyte Coculture Assay: An In Vitro Set-up for the Detailed Investigation of Neuron-glia Interactions

Questo protocollo descrive l&#39;indiretta co-coltura di neuroni-astrociti per l&#39;analisi compartimenti stagni delle interazioni neuroni-glia.

La indiretto Neuron-astrociti co-coltura saggio: An<em&gt; In Vitro</em&gt; Set-up per l&#39;indagine dettagliata delle Interazioni neuroni-glia

Proper neuronal development and function is the prerequisite of the developing and the adult brain. However, the mechanisms underlying the highly ...

Research

JoVE Journal

Neuroscience

The Indirect Neuron-astrocyte Coculture Assay: An In Vitro Set-up for the Detailed Investigation of Neuron-glia Interactions

Brain Imaging Investigation of the Neural Correlates of Observing Virtual Social Interactions

Indagine del cervello Imaging i correlati neurali di osservazione virtuale interazioni sociali

The ability to gauge social interactions is crucial in the assessment of others&#x2019; intentions. Factors such as facial expressions and body language ...

Ricerca

Neuroscienze

Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion

Indagine Imaging cerebrale della memoria effetto di intensificazione delle emozioni

Emotional events tend to be better remembered than non-emotional events1,2. One goal of cognitive and affective neuroscientists is 
to understand the ...

Visualization of Proprioceptors in Drosophila Larvae and Pupae

Visualization of Proprioceptors in Drosophila Larvae and Pupae

Visualizzazione dei Propriorecettori in<em&gt; Drosophila</em&gt; Larve e pupe

Proprioception is the ability to sense the motion, or position, of body parts by responding to stimuli arising within the body. In fruitflies and other ...

An Assay for Permeability of the Zebrafish Embryonic Neuroepithelium

Un saggio per permeabilità del neuroepitelio Zebrafish embrionali

The brain ventricular system is conserved among vertebrates and is composed of a series of interconnected cavities called brain ventricles, which form ...

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Astrocytes form together with neurons tripartite synapses, where they integrate and modulate neuronal activity. Indeed, astrocytes sense neuronal inputs ...

An In Vitro Model for the Study of Cellular Pathophysiology in Globoid Cell Leukodystrophy

An In Vitro Model for the Study of Cellular Pathophysiology in Globoid Cell Leukodystrophy

Un<em&gt; In Vitro</em&gt; Modello per lo Studio della Fisiopatologia Cellulare in Globoid Leucodistrofia cellulare

The precise function of multi-nucleated microglia, called globoid cells, that are uniquely abundant in the central nervous system of globoid cell ...

Electrophysiological Method for Recording Intracellular Voltage Responses of Drosophila Photoreceptors and Interneurons to Light Stimuli In Vivo

Electrophysiological Method for Recording Intracellular Voltage Responses of Drosophila Photoreceptors and Interneurons to Light Stimuli In Vivo

Metodo elettrofisiologiche per la registrazione intracellulare di tensione Risposte di<em&gt; Drosophila</em&gt; Fotorecettori e Interneuroni a luce stimoli<em&gt; In Vivo</em

Voltage responses of insect photoreceptors and visual interneurons can be accurately recorded with conventional sharp microelectrodes. The method ...

Assay to Measure Nucleocytoplasmic Transport in Real Time within Motor Neuron-like NSC-34 Cells

Analisi per misurare il trasporto nucleocitoplasmatico in tempo reale all&#39;interno di motori neuronici come le cellule NSC-34

Nucleocytoplasmic transport refers to the import and export of large molecules from the cell nucleus. Recently, a number of studies have shown a ...

In Vitro Assay for Studying the Aggregation of Tau Protein and Drug Screening

In Vitro Assay for Studying the Aggregation of Tau Protein and Drug Screening

In Vitro Test per studiare l'aggregazione della proteina Tau e lo Screening di stupefacenti

Aggregation of tau protein and formation of paired helical filaments is a hallmark of Alzheimer&#39;s disease and other tauopathies. Compared to other ...

A Cell Culture Model for Studying the Role of Neuron-Glia Interactions in Ischemia

Un modello di coltura cellulare per studiare il ruolo delle interazioni Neuron-Glia in Ischemia

Ischemic stroke is a clinical condition characterized by hypoperfusion of brain tissue, leading to oxygen and glucose deprivation, and the consequent ...