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).

Os experimentos com camundongos estavam em conformidade com a Lei alemã e da Sociedade Alemã de diretrizes neurociência da criação de animais. As comissões de cuidados de animais e utilização do Bochum Ruhr-University concederam as licenças apropriadas. 1. Preparação e Cultivo de Cortical astrócitos Nota: Conclua estas etapas do protocolo, pelo menos, 7 d antes de prosseguir para as próximas etapas, como as culturas de astrócitos devem desenvolver em ...

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O principal objetivo do protocolo atual é a de culturas neuronais e astrócitos completamente separadas, mantendo-os em meio compartilhado. Por esta razão, a pureza das culturas obtidas deverá ser verificada no início do procedimento. Recomendamos o uso de neurônio-específica tubulina, neurofilaments ou proteína NeuN como marcadores neuronais, GFAP como marcador de astrócitos, o antígeno O4 como marcador precursor oligodendrócitos e proteína Iba1 para identificar microglia. Preste...

Ao longo das últimas décadas, a interpretação geral da função neuroglia evoluiu a partir da atribuição de um apoio meramente no sentido de um papel regulador activa a respeito da função neuronal 1. Por causa de seu impacto importante na homeostase cerebral na saúde e na doença 2, os astrócitos são de especial interesse para a comunidade científica. Nos últimos anos, uma diversidade de estudos concentraram-se em interacções neurónio-glia in vivo e in vitro 3. No entanto, a maioria dos sistemas de cultura não permitem a análise em separado de ambos os tipos de células e de seus respectivos secretomes. Várias abordagens explorar o co-cultivo direta dos neurônios e da glia para alcançar a sobrevivência duradoura e de desenvolvimento da rede neuronal fisiologicamente relevante 4-6. O presente protocolo atinge os mesmos objetivos, mantendo ambos os tipos de células separadas fisicamente 7. Em comparação com conditioned média se aproxima de 8,9, o nosso sistema permite estudar a comunicação bidirecional entre neurónios e astrócitos. A expressão de moléculas de sinalização segregadas pode ser monitorizada, enquanto as células maturam no meio compartilhado. Esta possibilidade é especialmente relevante, tal como astrócitos libertam factores solúveis, tais como citoquinas, factores de crescimento e moléculas da matriz extracelular 10,11, regulando desse modo o crescimento neuronal e função 7,12. Assim, foi demonstrado que a adição de trombospondina de células do gânglio retinal in vitro, induz a formação de sinapses 13. No entanto, outros fatores ainda desconhecidos são necessárias para tornar as sinapses funcionais 13. Além disso, as moléculas liberadas por astrócitos têm de ser identificados, a fim de compreender a base de interações neurônio-glia. A cultura de neurónios e astrócitos primários de ratinho e rato foi previamente descrito 14-16. Aqui nósapresentar uma ferramenta elegante e versátil para combinar ambos os tipos de células em uma abordagem co-cultura indirecta. Uma vez que as duas culturas são fisicamente separadas mas que partilham a mesma forma, o impacto de neurónios, astrócitos e as moléculas solúveis, podem ser analisados ​​separadamente, criando assim uma ferramenta poderosa para estudos de interacção Neuron-glia.

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		<tr height="41">
			<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>
		</tr>
		<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

desenvolvimento neuronal adequada e função é o pré-requisito do desenvolvimento e do cérebro adulto. No entanto, os mecanismos subjacentes à formação altamente controlada e manutenção de redes neuronais complexas não estão completamente compreendidos, até agora. As questões em aberto sobre neurônios na saúde e na doença são diversas e alcance da compreensão do desenvolvimento básico para investigar patologias relacionadas com humanos, por exemplo, doença de Alzheimer e esquizofrenia. A análise mais detalhada dos neurónios pode ser realizado in vitro. No entanto, os neurônios estão exigindo células e precisam do apoio adicional dos astrócitos para a sua sobrevivência a longo prazo. Esta heterogeneidade celular está em conflito com o objectivo de dissecar a análise de neurónios e astrócitos. Apresentamos aqui um ensaio de cultura de células que permite a co-cultura a longo prazo de neurónios e astrócitos primários puros, que partilham o mesmo meio definido quimicamente, sendo fisicamenteseparados. Nesta configuração, as culturas sobreviver por até quatro semanas e o ensaio é adequado para uma diversidade de investigações relativas a interação neurônio-glia.

A análise das culturas neuronais através do sistema de co-cultura indirecta é heterogénea e pode ser realizada em diferentes estágios de maturação da cultura. Devido ao facto de que as células podem ser mantidas durante até 4 semanas, as investigações a longo prazo das culturas são possíveis. O esquema no painel central esquerdo da Figura 1 demonstra a configuração de co-cultura. Com a utilizaç...

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

Este protocolo descreve a co-cultura neurônio-astrócito indireta para análise compartimentada das interações neurônio-glia.

A indireta Neuron-astrócitos Coculture Ensaio: An<em&gt; In Vitro</em&gt; Set-up para a investigação detalhada da Relação Neuron-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

Investigação por imagem do cérebro os correlatos neurais da Observando Virtual Interações Sociais

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

Neurociência

Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion

Investigação de imagens do cérebro do Efeito Memória de aumento da Emoção

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

Visualização de Propriocepção em<em&gt; Drosophila</em&gt; As larvas e pupas

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

Um ensaio para a permeabilidade do neuroepitélio Zebrafish Embryonic

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

Dual Electrophysiological Recordings of Synaptically-evoked Astroglial and Neuronal Responses in Acute Hippocampal Slices

Dois registros eletrofisiológicos de sinapticamente evocadas Respostas astroglial e neuronal em fatias hipocampais agudas

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

Um<em&gt; In Vitro</em&gt; Modelo para o Estudo da Cellular Fisiopatologia em Globóides Leucodistrofia celular

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

Método eletrofisiológico para respostas gravação intracelular de tensão<em&gt; Drosophila</em&gt; Fotorreceptores e Interneurônios à luz Estímulos<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

Ensaio para Medir o Transporte Nucleocitoplasmático em Tempo Real dentro de Células NSC-34 do tipo Motor-Neuron

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 Ensaio para estudar a agregação da proteína Tau e rastreio de drogas

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

Um modelo de cultura celular para estudar o papel das interações neurônio-glia na isquemia

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