Name: inducing dendritic growth in cultured sympathetic neurons
Uploaded: 2012-03-21T12:00:00
Description: Watch this Scientific Journal Video about Inducing Dendritic Growth in Cultured Sympathetic Neurons at JoVE.com

Este trabalho foi suportado pelo financiamento do National Institutes of Health (R21 NS45037 subsídios e R01 ES014901).

1. Preparação de meio de cultura (meio de C2) <ol><li> Adicionar o seguinte, na ordem listada, para um estéril, 500 ml descartável Erlenmeyer: <table border="1"><tbody><tr><td> Quantidade </td><td> Componente </td><td> Concentração Final </td></tr><tr><td> 190 ml </td><td> DMEM (glicose baixa) </td><td> N / A </td></tr><tr><td> 10 ml </td><td> de ácido gordo livre de BSA (20mg/ml em DMEM) </td><td> 50 ug / ml </td></tr><tr><td> 2,8 ml </td><td> L-Glutamina </td...

<ol>
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I., Banker, G., Goslin, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Culturing Nerve Cells. , 177-295 (1991).</li><li>Beck, H. N., Drahushuk, K., Jacoby, D. B., Higgins, D., Lein, P. 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As vantagens deste modelo incluem: (a) as culturas são compostos de uma população homogénea de neurónios simpáticos desprovidas de outros tipos de células 17,23; (b) os requisitos do factor de crescimento de neurónios simpáticos estão bem estabelecidos, o que permite o uso de meio definido, e uma variedade de meios definidos, e substratos funcionar bem para crescimento e manutenção de neurónios simpáticos 23, (c) neurónios nestas culturas responder uniformemente para a actividade pro...

<table border="1"><tbody><tr><td> Nome do reagente </td><td> Companhia </td><td> Número de catálogo </td><td> Comentários </td></tr><tr><td> Lamínulas </td><td> Bélico </td><td> 1943-10012 </td><td> 12 Coverslip Rodada mm # Espessura 1, vidro alemão </td></tr><tr><td> Bent ponta pipetas </td><td> Bélico </td><td> 1273-50003 </td><td></td></tr><tr><td> Poli-D-lisina </td><td> Sigma </td><td> P0899-100mg </td><td> Banco de solução a 1 mg / ml </td></tr><tr><td> Água destilada </td><td> Gibco </td><td> 15230 </td><td></td></tr><tr><td> Multa fórceps Dumont n. 4 e 5 </td><td> Belas Ferramentas Ciência (FST) </td><td> 11252-30 11241-30 </td><td></td></tr><tr><td> Calibre 20 agulhas </td><td> Becton Dickinson </td><td> 305176 </td><td></td></tr><tr><td> L-15 de Leibovitz médio </td><td> Invitrogen </td&gt; <td> 11415 </td><td></td></tr><tr><td> Colagenase </td><td> Worthington </td><td> 4176 </td><td> 1 mg / ml </td></tr><tr><td> Dispase </td><td> Roche </td><td> 04942078001 </td><td> 5 mg / ml </td></tr><tr><td> Solução salina equilibrada de Hank (-Ca,-Mg) </td><td> Invitrogen </td><td> 14185-052 </td><td></td></tr><tr><td> DMEM baixa glicose </td><td> Invitrogen </td><td> 11885 </td><td></td></tr><tr><td> L-Glutamina </td><td> Invitrogen </td><td> 25030 </td><td> 20 mM </td></tr><tr><td> Insulina / Transferrina / Selenium </td><td> Invitrogen </td><td> 51500-056 </td><td> 100X </td></tr><tr><td> De ácidos gordos livre de BSA </td><td> Calbiochem </td><td> 126609 </td><td></td></tr><tr><td> NGF </td><td> Bioproducts Harlan </td><td> 5017 </td><td></td></tr><tr><td> Ham meio nutriente F-12 (F-12) </td><td> Invitrogen </td><td> 11765 </td><td&gt; </td></tr><tr><td> Citosina arabinósido </td><td> Sigma </td><td> C1768 </td><td></td></tr><tr><td> Matrigel </td><td> BD Biosciences </td><td> 356234 </td><td> Evite a repetição de ciclos de congelamento e descongelamento </td></tr><tr><td> BMP-7 </td><td> R &amp; D Systems Curis, Inc. </td><td> 345-BP BMP7-07h </td><td> BMPs 4, 5 e 6 funcionam igualmente bem como BMP-7 e por vezes são mais fáceis de obter comercialmente </td></tr><tr><td> Paraformaldeído </td><td> Sigma </td><td> P6148 </td><td></td></tr><tr><td> Triton X-100 </td><td> Pescador </td><td> BP151-500 </td><td></td></tr><tr><td> Rato anti-rato MAP2 anticorpo </td><td> Sternberg monoclonais Inc. </td><td> SMI52 </td><td> 1/5000 </td></tr><tr><td> Alexa Fluor 546 cabra anti-rato </td><td> Invitrogen </td><td> A11003 </td><td> 1/10000 </td></tr><tr><td> Meios de montagem </td><td> Prolongar Sondas kit Antifade Molecular </td> &lt;td&gt; P7481 </td><td></td></tr></tbody></table>

inducing dendritic growth in cultured sympathetic neurons

A forma do mandril dendrítica determina a entrada total sináptica um neurónio pode receber 1-3, e influencia os tipos e distribuição destes 4-6 entradas. Padrões alterados de crescimento dendrítica e plasticidade estão associados com a função neurocomportamental prejudicada em modelos experimentais 7, e são pensados ​​para contribuir para os sintomas clínicos observados em ambas as 8-10 neurodesenvolvimento distúrbios e doenças neurodegenerativas 11-13. Tais observações ressaltam a importância funcional da regulação precisamente morfologia dendrítica, e sugerem que a identificação de mecanismos que controlam o crescimento dendrítico não só avançar na compreensão de como a conectividade neuronal é regulado durante o desenvolvimento normal, mas também pode fornecer informações sobre novas estratégias terapêuticas para diversas doenças neurológicas. Estudos sobre os mecanismos de crescimento dendrítico seria grandemente facilitada pela disponibilidade ofa sistema modelo que permite que os neurónios a ser experimentalmente comutada a partir de um estado em que não se estendem para uma dendritos em que elaborar um mandril dendrítica comparável à do seu em homólogos in vivo. Culturas primárias de neurônios simpáticos dissociados do gânglio cervical superior (GCS) de roedores perinatais fornecer tal modelo. Quando cultivados em meio definido na ausência de soro e ganglionar células gliais, neurónios simpáticos estender um único processo que é axonal, e este estado unipolar persiste durante semanas a meses em cultura 14,15. No entanto, a adição de qualquer proteína morfogenética óssea-7 (BMP-7) ou 16,17 Matrigel 18 ao meio de cultura desencadeia estes neurónios para estender vários processos que satisfaçam os critérios morfológicos e bioquímicos e funcional para dendrites. Neurônios simpáticos dissociadas do SCG de roedores perinatais e cultivadas sob condições definidas são uma população homogênea de neurônios 19que respondem de forma uniforme para a actividade promotora de dendrite-Matrigel, BMP-7 e BMPs outros do decapentaplegic (DPP) e subfamílias 60A 17,18,20,21. Importante, Matrigel e BMP-induzida dendrite formação ocorre na ausência de alterações na sobrevivência das células ou do crescimento axonal 17,18. Aqui, nós descrevemos como configurar culturas dissociadas de neurónios simpáticos SCG derivados da de ratos perinatais de modo que eles são responsivos à actividade dendrite-promoção selectiva de Matrigel ou BMPs.

Watch this Scientific Journal Video about Inducing Dendritic Growth in Cultured Sympathetic Neurons at JoVE.com

Inducing Dendritic Growth in Cultured Sympathetic Neurons

Nós descrevemos um protocolo para a utilização de proteína morfogenética óssea-7 (BMP-7) ou Matrigel para selectivamente induzir o crescimento dendrítica em primárias neurónios simpáticos dissociadas do gânglio cervical superior (SCG) de ratos neonatais.

Induzir o crescimento dendrítico no cultivadas neurônios simpáticos

The shape of the dendritic arbor determines the total synaptic input a neuron can receive 1-3, and influences the types and distribution of these inputs ...

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Neuroscience

Fluorescence Recovery After Photobleaching (FRAP) of Fluorescence Tagged Proteins in Dendritic Spines of Cultured Hippocampal Neurons

Fluorescence Recovery After Photobleaching FRAP of Fluorescence Tagged Proteins in Dendritic Spines of Cultured Hippocampal Neurons

Recuperação de fluorescência Após Fotodegradação (FRAP) de fluorescência Proteínas Tagged em espinhas dendríticas dos neurônios do hipocampo Cultivadas

FRAP has been used to quantify the mobility of GFP-tagged proteins. Using a strong excitation laser, the fluorescence of a GFP-tagged protein is bleached ...

Neurociência

Analysis of Dendritic Spine Morphology in Cultured CNS Neurons

Análise de Morfologia Spine dendríticas em neurônios cultivados CNS

Dendritic spines are the sites of the majority of excitatory connections within the brain, and form the post-synaptic 
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Quantitative Analysis of Synaptic Vesicle Pool Replenishment in Cultured Cerebellar Granule Neurons using FM Dyes

Análise quantitativa de Reposição da vesícula sináptica Piscina em Cultured neurônios granulares do cerebelo usando Dyes FM

After neurotransmitter release in central nerve terminals, SVs are rapidly retrieved by endocytosis.  Retrieved SVs are then refilled with ...

Genetic Study of Axon Regeneration with Cultured Adult Dorsal Root Ganglion Neurons

Estudo genético da regeneração do axônio com cultivadas Adulto neurônios do gânglio da raiz dorsal

It is well known that mature neurons in the central nervous system (CNS) cannot regenerate their axons after injuries due to diminished intrinsic ability ...

Voltage-sensitive Dye Recording from Axons, Dendrites and Dendritic Spines of Individual Neurons in Brain Slices

Tensão sensível Gravação Dye de axônios, dendritos e espinhas dendríticas de neurônios individuais em fatias de cérebro

Understanding the biophysical properties and functional organization of single neurons and how they process information is fundamental for understanding ...

Imaging pHluorin-tagged Receptor Insertion to the Plasma Membrane in Primary Cultured Mouse Neurons

Imagiologia pHluorin-tagged Inserção receptor para a membrana plasmática em primários de rato cultivadas Neurons

A better understanding of the mechanisms governing receptor trafficking between the plasma membrane (PM) and intracellular compartments requires an ...

Fast Micro-iontophoresis of Glutamate and GABA: A Useful Tool to Investigate Synaptic Integration

Rápido Micro-iontoforese de glutamato e GABA: uma ferramenta útil para investigar Integração Synaptic

One of the fundamental interests in neuroscience is to understand the integration of excitatory and inhibitory inputs along the very complex structure of ...

Imaging Dendritic Spines of Rat Primary Hippocampal Neurons using Structured Illumination Microscopy

Imagiologia espinhas dendríticas dos neurônios do hipocampo de rato primária usando Structured Illumination Microscopy

Dendritic spines are protrusions emerging from the dendrite of a neuron and represent the primary postsynaptic targets of excitatory inputs in the brain. ...

Quantification of Endosome and Lysosome Motilities in Cultured Neurons Using Fluorescent Probes

Quantificação de Endosome e Moosidades de Lisosoma em Neurônios Cultivados Usando Sondas Fluorescentes

In the brain, membrane trafficking systems play important roles in regulating neuronal functions, such as neuronal morphology, synaptic plasticity, ...

Measuring Synaptic Vesicle Endocytosis in Cultured Hippocampal Neurons

Medindo a endocitose da vesícula sináptica nos neurônios Hippocampal culturas

During endocytosis, fused synaptic vesicles are retrieved at nerve terminals, allowing for vesicle recycling and thus the maintenance of synaptic ...