Name: generation of single-cell suspensions from mouse neural tissue
Uploaded: 2009-07-07T19:00:00.000+00:00
Duration: 11 min 17 s
Description: Watch this Scientific Journal Video about Generation of Single-Cell Suspensions from Mouse Neural Tissue at JoVE.com

Para trabalhar em condições estéreis, é recomendada a realização de todas as etapas em uma capela de fluxo laminar. 1. Materiais <ul><li> Neurais Tissue dissociação Kit (P) (Componentes: Solução 1,2, 3 e 4, buffer de armazenamento) </li><li> Separação pré-filtros </li><li> (Opcional) Remoção Beads Mielina </li><li> Beta-mercaptoetanol </li><li> gentleMACS Dissociator </li><li> C Tubes </li><li> MACSmix Rotator Tubo </li><li> HBSS (w / o) </li><li> HBSS (w) </li></ul><ol><li> Preparar as soluções seguintes antes de começar o protocolo: <ol><li> Solução Hanks &#39;Salt Buffered sem cátions divalentes Ca 2 + ou Mg 2 + (HBSS (w / o) </li><li> HBSS, standard, ou seja, com Ca 2 + e Mg 2 + (HBSS (w) </li></ol></li><li> Dependendo do epítopo do antígeno de interesse em aplicações subseqüentes, use o papaína baseado Neural Tissue dissociação Kit (P) ou o Tripsina baseado Neural Tissue dissociação Kit (T). </li><li> Prepare as seguintes soluções a partir da dissociação Neural Tissue Kit: <ol><li> Solução 2: adicionar beta-mercaptoetanol para 0,067 mM </li><li> Solução 4: dissolver o pó em 0,7 ml de buffer de armazenamento (fornecido no kit), misture delicadamente (não vortex) </li><li> Mix de enzimas 1: Pipetar 1,9 mL da solução 2 e 50 mL da solução 1 (ambos do kit) em um tubo C e incubar por 10-15 min a 37 ° C. Isto é suficiente para dissociar 400 mg do tecido cerebral. </li></ol></li></ol> 2. Dissociar o tecido neural <ol><li> Pesar tecido cerebral em um tubo contendo 1 ml HBSS (w / o) </li><li> Transferência do cérebro do rato no tubo C contendo 1950 mL da mistura de enzimas pré-aquecido 1. (NOTA: este protocolo é escrito para ≤ 400 mg, mas os volumes solução pode ser dimensionada para acomodar até 1.600 mg de tecido cerebral por metro C) </li><li> Coloque o tubo C para a Dissociator gentleMACS e executar o programa &quot;m_brain_01&quot;. </li><li> Incube com a rotação (4 rpm usando um tubo Rotator MACSmix) por 15 min a 37 ° C. </li><li> Coloque o tubo C para a Dissociator gentleMACS e executar o programa &quot;m_brain_02&quot;. </li><li> Durante a etapa de dissociação preparar 30 mL da mistura de 2 por Enzyme 400 mg de tecido por gentilmente mistura de 20 ml de solução-3 e 10 ml de solução 4. </li><li> Adicionar Mix Enzyme 2 para o tubo C através do septo, selada tampa e misture delicadamente sem vórtex. </li><li> Incubar o tubo C com rotação de 10 min a 37 ° C em uma incubadora. </li><li> Coloque o tubo C para a Dissociator gentleMACS e executar o programa &quot;m_brain_03&quot;. </li><li> Incubar o tubo C com rotação de 10 min a 37 ° C em uma incubadora. </li><li> Centrifugar brevemente para coletar a amostra no fundo do tubo. </li></ol> 3. Filtração <ol><li> Selecione um filtro grande o suficiente para permitir a passagem para as células de interesse. Por exemplo, células de Purkinje são demasiado grandes para passar através de um filtro M 30, mas Prominin-1 + células vontade. </li><li> Use uma pipeta suitable1000 mL para remover as células formam o tubo C através do septo, selada tampa e aplicá-lo para o Filtro de pré-separação em um tubo de coleta de 15 ml. (NOTA: para tamanhos de amostra maior uso de um tubo de coleta de 50 ml). </li><li> Lavar o filtro com 10 ml de HBSS (w). </li><li> Centrifugar as células filtradas a 300 xg por 10 min em temperatura ambiente. </li><li> Ressuspender o sobrenadante em seu meio ou tampão de escolha para aplicações subseqüentes. </li><li> Para remover os restos de mielina, use Beads Remoção de mielina. </li></ol> 4. Resultado representante: Por favor Veja as Figuras 1-3 <img src="/files/ftp_upload/1267/Fig_1.png" alt="fig 1" /> Figura. Uma dissociação O cérebro com o Dissociator gentleMACS resultou em 97% de células viáveis, como mostra a análise por citometria de fluxo. <img src="/files/ftp_upload/1267/1267fig2.png" alt="fig 2" /> Figura. 2 imagem do microscópio de luz de formação neurosphere após separação de células magnéticas usando Anti-Prominin-1 microesferas após 7 dias de cultivo em MACS ® NeuroMedium suplementado com MACS suplemento B27 PLUS. Células foram preparados a partir de cérebro de camundongos CD1 (P3), utilizando o Neural Tissue dissociação Kit (P). <img src="/files/ftp_upload/1267/1267fig4.jpg" alt="fig 3,5" /> Figura. Três fragmentos de mielina em uma única célula suspensões prejudica consideravelmente o isolamento de células e remoção de detritos de mielina por Beads Remoção de mielina aumenta a eficiência das células separações. Para MACS Separações usando Anti-Prominin-1 micro, P22 cérebro do rato era dissociado usando o Neural Tissue dissociação Kit (P). Células da suspensão de uma única célula foram diretamente usados ​​para a separação, ou foram submetidos a mielina esgotamento usando Beads Remoção de mielina. Comparando-se a separação de amostras sem e com a remoção de mielina, demonstra que a pureza é maior para as amostras com a remoção de mielina anterior.

<ol>
	<li>Hardt, O., Scholz, C., K&#252;sters, D., Yanagawa, Y., Pennartz, S., Cremer, H., Bosio, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gene+expression+analysis+defines+differences+between+region-specific+GABAergic+neurons.">Gene expression analysis defines differences between region-specific GABAergic neurons.</a> Mol Cell Neurosci. 39, 418-428 (2008).</li><li>Lee, J. K., McCoy, M. K., Harms, A. S., Ruhn, K. A., Gold, S. J., Tansey, M. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Regulator+of+G-protein+signaling+10+promotes+dopaminergic+neuron+survival+via+regulation+of+the+microglial+inflammatory+response.">Regulator of G-protein signaling 10 promotes dopaminergic neuron survival via regulation of the microglial inflammatory response.</a> J Neurosci. 28, 8517-8528 (2008).</li><li>K&#246;rnyei, Z., G&#243;cza, E., R&#252;hl, R., Orsolits, B., V&#246;r&#246;s, E., Szab&#243;, B., V&#225;govits, B., Madar&#225;sz, E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Astroglia-derived+retinoic+acid+is+a+key+factor+in+glia-induced+neurogenesis.">Astroglia-derived retinoic acid is a key factor in glia-induced neurogenesis.</a> FASEB J. 21, 2496-2509 (2007).</li><li>Meylan, F., Davidson, T. S., Kahle, E., Kinder, M., Acharya, K., Jankovic, D., Bundoc, V., Hodges, M., Shevach, E. M., Keane-Myers, A., Wang, E. C., Siegel, R. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+TNF-family+receptor+DR3+is+essential+for+diverse+T+cell-mediated+inflammatory+diseases.">The TNF-family receptor DR3 is essential for diverse T cell-mediated inflammatory diseases.</a> Immunity. 29, 79-89 (2008).</li><li>Skog, J., W&#252;rdinger, T., van Rijn, S., Meijer, D. H., Gainche, L., Sena-Esteves, M., Curry, W. T., Carter, B. S., Krichevsky, A. M., Breakefield, X. O. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Glioblastoma+microvesicles+transport+RNA+and+proteins+that+promote+tumour+growth+and+provide+diagnostic+biomarkers.">Glioblastoma microvesicles transport RNA and proteins that promote tumour growth and provide diagnostic biomarkers.</a> Nat Cell Biol. 10, 1470-1476 (2008).</li></ol>

Os autores são funcionários da Miltenyi Biotec GmbH, Alemanha.

O Dissociator gentleMACS facilita a preparação padronizada de uma única célula suspensões de tecidos neurais em um sistema fechado. Kits tecido neural dissociação são otimizados para preservar epítopos de antígeno necessária para outras aplicações como reações imunoistoquímicas e separação de células imunomagnética 1-5. Neste protocolo, mostramos a dissociação gentil enzimática de cérebro de camundongo usando o Dissociator gentleMACS eo Neural Tissue dissociação Kit (P), resultando em 97% de células viáveis. 100 mg de rendimentos tecido neural entre 5x10 6 e 1x10 7 células, dependendo da idade do tecido hospedeiro. O alvo células Prominin-1 + foram isoladas usando Anti-Prominin-1 micro e posteriormente levados em cultura. O protocolo é mostrado para ser ainda mais eficaz com o uso adicional de Contas Remoção de mielina quando se trabalha com tecido neural derivado de ratos P7&gt;.

<table><tbody><tr><td>C Tubes</td><td>Miltenyi Biotec</td><td>Order no. 130-093-237</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_709_763_gentleMACS_Dissociator.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_709_763_gentleMACS_Dissociator.aspx&lt;/a&gt;</td></tr><tr><td>gentleMACS&amp;#8482; Starting Kit</td><td>Miltenyi Biotec</td><td>Order no. 130-093-235</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_709_763_gentleMACS_Dissociator.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_709_763_gentleMACS_Dissociator.aspx&lt;/a&gt;</td></tr><tr><td>MACSmix&amp;#8482; Tube Rotator</td><td>Miltenyi Biotec</td><td>Order no. 130-090-753</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_34_251_MACSmix_Tube_Rotator.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_34_251_MACSmix_Tube_Rotator.aspx&lt;/a&gt;</td></tr><tr><td>Neural Tissue Dissociation Kit (P)</td><td>Miltenyi Biotec</td><td>Order no. 130-092-628</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_712_656_Neural_Tissue_Dissociation_Kits.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_712_656_Neural_Tissue_Dissociation_Kits.aspx&lt;/a&gt;</td></tr><tr><td>Pre-Separation Filters</td><td>Miltenyi Biotec</td><td>Order no. 130-041-407</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_34_247_Pre_Separation_Filters.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_34_247_Pre_Separation_Filters.aspx&lt;/a&gt;</td></tr><tr><td>Anti-Prominin-1 MicroBeads</td><td>Miltenyi Biotec</td><td>Order no. 130-092-333</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_654_524_Anti_Prominin_1_MicroBeads.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_654_524_Anti_Prominin_1_MicroBeads.aspx&lt;/a&gt;</td></tr><tr><td>Anti-Prominin-1-APC</td><td>Miltenyi Biotec</td><td>Order no. 130-092-335</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_599_525_Anti_Prominin_1.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_599_525_Anti_Prominin_1.aspx&lt;/a&gt;</td></tr><tr><td>Myelin Removal Beads</td><td>Miltenyi Biotec</td><td>Order no. 130-094-544</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_712_688_Myelin_Removal_Beads.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_712_688_Myelin_Removal_Beads.aspx&lt;/a&gt;</td></tr><tr><td>Art 1000 Reach Pipet Tips </td><td>Molecular BioProducts</td><td>Order no. 2079</td><td>&lt;a href=&quot;http://www.mbpinc.com/ASP/products.aspx?query_TipID=61&quot;&gt;http://www.mbpinc.com/ASP/products.aspx?query_TipID=61&lt;/a&gt;&lt;br/&gt;&lt;a href=&quot;http://www.mbpinc.com/html/products/art/display.html&quot;&gt;http://www.mbpinc.com/html/products/art/display.html&lt;/a&gt;</td></tr><tr><td>Neural Tissue Dissociation Kit (T)</td><td>Miltenyi Biotec</td><td>Order no. 130-093-231</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_712_656_Neural_Tissue_Dissociation_Kits.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_712_656_Neural_Tissue_Dissociation_Kits.aspx&lt;/a&gt;</td></tr><tr><td>Propidium Iodide Solution</td><td>Miltenyi Biotec</td><td>Order no. 130-093-233</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_337_744_Propidium_Iodide_Solution.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_337_744_Propidium_Iodide_Solution.aspx&lt;/a&gt;</td></tr></tbody></table>

generation of single-cell suspensions from mouse neural tissue

Dentro do sistema nervoso, centenas de tipos de células neuronais e gliais têm sido descritas. Cada tipo específico de célula no cérebro ou na medula espinhal tem um repertório de moléculas da superfície celular, ou determinantes moleculares, através do qual podem ser identificados e caracterizados. Atualmente, a identificação de células robustas e tecnologias de separação exige uma única célula preparações a serem gerados ao mesmo tempo, limitar a morte celular e destruição de proteínas de superfície característicos. O Dissociator gentleMACS, quando usado em combinação com tripsina ou kits papaína baseado dissociação, pode efetivamente e gentilmente dissociar o tecido cerebral, preservando epítopos do antígeno e limitar a perda de células. Preparação padronizada de uma única célula suspensões é conseguido usando Tubos C e otimizado, programas predefinidos gentleMACS. Uma vez gerados, de uma única célula suspensões podem ser tratados com conjugados monoclonais como Anti-Prominin-1 microesferas, que identificam progenitores neurais, ou purificado ainda mais usando Beads Remoção de mielina.

Watch this Scientific Journal Video about Generation of Single-Cell Suspensions from Mouse Neural Tissue at JoVE.com

Generation of Single-Cell Suspensions from Mouse Neural Tissue

Dissociar as células de tipos de tecido específico requer parâmetros específicos para aggitation tecido para obter um volume elevado de viáveis, as células cultiváveis. A Miltenyi gentleMACS Dissociator otimiza essa tarefa com um protocolo simples e prática. Nesta publicação o uso deste aparelho no tecido nerual é explicado.

Geração de Single-Cell Tissue Suspensões de rato Neural

Within the nervous system, hundreds of neuronal and glial cell types have been described. Each specific cell type in the brain or spinal cord has a ...

generation-of-single-cell-suspensions-from-mouse-neural-tissue

Research

JoVE Journal

Biology

22.4K visualizações.  Miltenyi Biotec,GmbH.  中文 日本語 

Vídeo: Generation of Single-Cell Suspensions from Mouse Neural Tissue

Culture of Mouse Neural Stem Cell Precursors

Primary neural stem cell cultures are useful for studying the mechanisms underlying central nervous system development. Stem cell research will increase our understanding of the nervous system and may allow us to develop treatments for currently incurable brain diseases and injuries. In addition, stem cells should be used for stem cell research aimed at the detailed study of mechanisms of neural differentiation and transdifferentiation and the genetic and environmental signals that direct the specialization of the cells into particular cell types.  This video demonstrates a technique used to disaggregate cells from the embryonic day 12.5 mouse dorsal forebrain. The dissection procedure includes harvesting E12.5 mouse embryos from the uterus, removing the "skin" with fine dissecting forceps and finally isolating pieces of cerebral cortex. Following the dissection, the tissue is digested and mechanically dissociated. The resuspended dissociated cells are then cultured in "stem cell" media that favors growth of neural stem cells.

This video describes the method used for isolation of neuroprecursors from the developing cortex of embryonic mice. The procedure for removing embryos from the uterus, dissecting the cortical tissue, and digesting the isolated cerebral cortex is shown.

Cultura de rato precursores das células-tronco neurais

Primary neural stem cell cultures are useful for studying the mechanisms underlying central nervous system development. Stem cell research will increase ...

Biologia

Establishing Embryonic Mouse Neural Stem Cell Culture Using the Neurosphere Assay

In mammalians, stem cells acts as a source of undifferentiated cells to maintain cell genesis and renewal in different tissues and organs during the life span of the animal. They can potentially replace cells that are lost in the aging process or in the process of injury and disease. The existence of neural stem cells (NSCs) was first described by Reynolds and Weiss (1992) in the adult mammalian central nervous system (CNS) using a novel serum&#8208;free culture system, the neurosphere assay (NSA). Using this assay, it is also feasible to isolate and expand NSCs from different regions of the embryonic CNS. These in vitro expanded NSCs are multipotent and can give rise to the three major cell types of the CNS. While the NSA seems relatively simple to perform, attention to the procedures demonstrated here is required in order to achieve reliable and consistent results. This video practically demonstrates NSA to generate and expand NSCs from embryonic day 14-mouse brain tissue and provides technical details so one can achieve reproducible neurosphere cultures. The procedure includes harvesting E14 mouse embryos, brain microdissection to harvest the ganglionic eminences, dissociation of the harvested tissue in NSC medium to gain a single cell suspension, and finally plating cells in NSA culture. After 5-7 days in culture, the resulting primary neurospheres are passaged to further expand the number of the NSCs for future experiments.

This video protocol demonstrates the application of the neurosphere assay for the isolation and expansion of neural stem cells from the ganglionic eminences of embryonic day 14-mouse brain.

Estabelecer embrionárias de rato Cultura de Células-tronco neurais utilizando o ensaio Neurosphere

In mammalians, stem cells acts as a source of undifferentiated cells to maintain cell genesis and renewal in different tissues and organs during the life ...

Neurociência

Generation of Neural Stem Cells from Discarded Human Fetal Cortical Tissue

Neural stem cells (NSCs) reside along the ventricular zone neuroepithelium during the development of the cortical plate. These early progenitors ultimately give rise to intermediate progenitors and later, the various neuronal and glial cell subtypes that form the cerebral cortex. The capacity to generate and expand human NSCs (so called neurospheres) from discarded normal fetal tissue provides a means with which to directly study the functional aspects of normal human NSC development 1-5. This approach can also be directed toward the generation of NSCs from known neurological disorders, thereby affording the opportunity to identify disease processes that alter progenitor proliferation, migration and differentiation 6-9. We have focused on identifying pathological mechanisms in human Down syndrome NSCs that might contribute to the accelerated Alzheimer's disease phenotype 10,11. Neither in vivo nor in vitro mouse models can replicate the identical repertoire of genes located on human chromosome 21. 
Here we use a simple and reliable method to isolate Down syndrome NSCs from aborted human fetal cortices and grow them in culture. The methodology provides specific aspects of harvesting the tissue, dissection with limited anatomical landmarks, cell sorting, plating and passaging of human NSCs. We also provide some basic protocols for inducing differentiation of human NSCs into more selective cell subtypes.

A simple and reliable method on isolation and culture of neural stem cells from discarded human fetal cortical tissue is described. Cultures derived from known human neurological disorders can be used for characterization of pathological cellular and molecular processes, as well as provide a platform to assess pharmacological efficacy.

Geração de células-tronco neurais de Discarded tecido fetal humano Cortical

Neural stem cells (NSCs) reside along the ventricular zone neuroepithelium during the development of the cortical plate. These early progenitors ...

One Mouse, Two Cultures: Isolation and Culture of Adult Neural Stem Cells from the Two Neurogenic Zones of Individual Mice

The neurosphere assay and the adherent monolayer culture system are valuable tools to determine the potential (proliferation or differentiation) of adult neural stem cells in vitro. These assays can be used to compare the precursor potential of cells isolated from genetically different or differentially treated animals&#160;to determine the effects of exogenous factors on neural precursor cell proliferation and differentiation and to generate neural precursor cell lines that can be assayed over continuous passages. The neurosphere assay is traditionally used for the post-hoc identification of stem cells, primarily due to the lack of definitive markers with which they can be isolated from primary tissue&#160;and has the major advantage of giving a quick estimate of precursor cell numbers in brain tissue derived from individual animals. Adherent monolayer cultures, in contrast, are not traditionally used to compare proliferation between individual animals, as each culture is generally initiated from the combined tissue of between 5-8 animals. However, they have the major advantage that, unlike neurospheres, they consist of a mostly homogeneous population of precursor cells and are useful for following the differentiation process in single cells. Here, we describe, in detail, the generation of neurosphere cultures and, for the first time, adherent cultures from individual animals. This has many important implications including paired analysis of proliferation and/or differentiation potential in both the subventricular zone (SVZ) and dentate gyrus (DG) of treated or genetically different mouse lines, as well as a significant reduction in animal usage.

Here we describe a detailed protocol for the simultaneous generation of neural precursor cell cultures, as either adherent monolayers or neurospheres, from the subventricular zone and dentate gyrus of individual adult mice.

Um rato, duas culturas: isolamento e cultivo de células-tronco neurais Adulto de as duas zonas neurogênica Individual Ratos

The neurosphere assay and the adherent monolayer culture system are valuable tools to determine the potential (proliferation or differentiation) of adult ...

Isolation and Culture of Adult Neural Stem Cells from the Mouse Subcallosal Zone

Adult neural stem cells (aNSCs) can be used for the regeneration of damaged brain tissue. NSCs have the potential for differentiation and proliferation into three types of cells: neurons, astrocytes, and oligodendrocytes. Identifying aNSC-derived regions and characterizing the aNSC properties are critical for the potential use of aNSCs and for the elucidation of their role in neural regeneration. The subcallosal zone (SCZ), located between white matter and the hippocampus, has recently been reported to contain aNSCs and continuously give rise to neuroblasts. A low percentage of aNSCs from the SCZ is differentiated into neurons; most cells are differentiated into glial cells, such as oligodendrocytes and astrocytes. These cells are suggested to have a therapeutic potential for traumatic cortical injury. This protocol describes in detail the process to generate SCZ-aNSCs from an adult mouse brain. A brain matrix with intervals of 1 mm is used to obtain the SCZ-containing coronal slices and to precisely dissect the SCZ from the whole brain. The SCZ sections are initially subjected to a neurosphere culture. A well-developed culture system allows for the verification of their characteristics and can increase research on NSCs. A neurosphere culture system provides a useful tool for determining proliferation and collecting the genuine NSCs. A monolayer culture is also an in vitro system to assay proliferation and differentiation. Significantly, this culture system provides a more homogenous environment for NSCs than the neurosphere culture system. Thus, using a discrete brain region, these culture systems will be helpful for expanding our knowledge about aNSCs and their applications for therapeutic uses.

Establishing culture systems for the expansion of adult neural stem cells (aNSCs) allows for the examination and application of aNSCs for therapy. The subcallosal zone (SCZ) has recently been recognized as a novel neuroblast-forming region in adult mice. Here, methods for the isolation, expansion, and differentiation of SCZ-aNSCs are described.

Isolamento e Cultura de células estaminais adultas neurais do Subcallosal Zona Rato

Adult neural stem cells (aNSCs) can be used for the regeneration of damaged brain tissue. NSCs have the potential for differentiation and proliferation ...

Isolation and Culture of Embryonic Mouse Neural Stem Cells

Neural stem cells (NSCs) are multipotent and can give rise to the three major cell types of the central nervous system (CNS). In vitro culture and expansion of NSCs provide a suitable source of cells for neuroscientists to study the function of neurons and glial cells along with their interactions. There are several reported techniques for the isolation of neural stem cells from adult or embryo mammalian brains. During the microsurgical operation to isolate NSCs from different regions of the embryonic CNS, it is very important to reduce the damage to the brain cells to obtain the highest ratio of live and expandable stem cells. A possible technique for stress reduction during isolation of these cells from the mouse embryo brain is the reduction of surgical time. Here, we demonstrate a developed technique for rapid isolation of these cells from the E13 mouse embryo ganglionic eminence. Surgical procedures include harvesting E13 mouse embryos from the uterus, cutting the frontal fontanelle of the embryo with a bent needle tip, extracting the brain from the skull, microdissection of the isolated brain to harvest the ganglionic eminence, dissociation of the harvested tissue in NSC medium to gain a single cell suspension, and finally plating cells in suspension culture to generate neurospheres.

Here, we introduce a novel microsurgical technique for the isolation of neural stem cells from the E13 mouse embryo ganglionic eminence.

Isolamento e cultura de células-tronco neurais embrionárias de rato

Neural stem cells (NSCs) are multipotent and can give rise to the three major cell types of the central nervous system (CNS). In vitro culture and ...

<meta charset="utf8"></head><body>Nucleofecção eficiente de NSCs isoladas da zona subventricular murina

Isolation, Expansion, and Nucleofection of Neural Stem Cells from Adult Murine Subventricular Zone

Isolation and expansion of neural stem cells (NSCs) from the subventricular zone (SVZ) of the adult mouse brain can be achieved in a medium supplemented with basic fibroblast growth factor (bFGF) and epidermal growth factor (EGF) as mitogens, producing clonal aggregates known as neurospheres. This in vitro system is a valuable tool for studying NSC potential. Transfection of siRNAs or genes carried in plasmids can be used to induce perturbations to gene expression and study NSC biology. However, the exogenous nucleic acid delivery to NSC cultures is challenging due to the low efficiency of central nervous system (CNS) cells transfection. Here, we present an improved nucleofection system that achieves high efficiency of gene delivery in expanded NSCs from adult murine SVZ. We demonstrate that this relatively simple method enhances gene perturbation in adult NSCs, surpassing traditional transfection protocols with survival rates exceeding 80%. Moreover, this method can also be applied in primary isolated NSCs, providing a crucial advancement in gene function studies through gene expression manipulation via knockdown or overexpression in neurosphere cultures.

<meta charset="utf8"></head><body>Autor em destaque: Nucleofecção aprimorada para entrega de genes de alta eficiência em culturas de células-tronco neurais derivadas da zona subventricular murina</

Here, we describe a nucleofection system designed to enhance gene delivery efficiency in expanded neural stem cells (NSCs) isolated from the adult murine subventricular zone. The findings demonstrate that this method significantly improves gene perturbation in NSCs, surpassing the effectiveness of traditional transfection protocols and enhancing cell survival rate.

Isolamento, expansão e nucleofecção de células-tronco neurais da zona subventricular murina adulta

Isolation and expansion of neural stem cells (NSCs) from the subventricular zone (SVZ) of the adult mouse brain can be achieved in a medium supplemented ...

Obtenção de suspensões unicelulares do cérebro murino e da medula óssea do crânio

Isolating Immune Cells from Mouse Brain and Skull

Mounting evidence indicates that the immune response triggered by brain disorders (e.g., brain ischemia and autoimmune encephalomyelitis) occurs not only in the brain, but also in the skull. A key step toward analyzing changes in immune cell populations in both the brain and skull bone marrow after brain damage (e.g., stroke) is to obtain sufficient numbers of high-quality immune cells for downstream analyses. Here, two optimized protocols are provided for isolating immune cells from the brain and skull bone marrow. The advantages of both protocols are reflected in their simplicity, speed, and efficacy in yielding a large quantity of viable immune cells. These cells may be suitable for a range of downstream applications, such as cell sorting, flow cytometry, and transcriptomic analysis. To demonstrate the effectiveness of the protocols, immunophenotyping experiments were performed on stroke brains and normal brain skull bone marrow using flow cytometry analysis, and the results aligned with findings from published studies.

Autor em destaque: Investigando a complexa resposta imune após isquemia cerebral

To investigate the immune response to brain disorders, one common approach is to analyze changes in immune cells. Here, two simple and effective protocols are provided for isolating immune cells from murine brain tissue and skull bone marrow.

Isolando células imunes do cérebro e crânio de camundongos

Mounting evidence indicates that the immune response triggered by brain disorders (e.g., brain ischemia and autoimmune encephalomyelitis) occurs not only ...

Geração de Single-Cell Tissue Suspensões de rato Neural

Transcrição

Resumo

Explore mais vídeos

Capítulos neste vídeo

Cultura de rato precursores das células-tronco neurais

Estabelecer embrionárias de rato Cultura de Células-tronco neurais utilizando o ensaio Neurosphere

Geração de células-tronco neurais de Discarded tecido fetal humano Cortical

Um rato, duas culturas: isolamento e cultivo de células-tronco neurais Adulto de as duas zonas neurogênica Individual Ratos

Isolamento e Cultura de células estaminais adultas neurais do Subcallosal Zona Rato

Isolamento e cultura de células-tronco neurais embrionárias de rato

Isolamento, expansão e nucleofecção de células-tronco neurais da zona subventricular murina adulta

Isolamento, expansão e nucleofecção de células-tronco neurais da zona subventricular murina adulta

Isolamento, expansão e nucleofecção de células-tronco neurais da zona subventricular murina adulta

Isolando células imunes do cérebro e crânio de camundongos