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

Um Arbeit unter sterilen Bedingungen, ist es empfehlenswert, alle Schritte in einer Sterilbank durchgeführt. 1. Materialien <ul><li> Neural Gewebedissoziation Kit (P) (Komponenten: Lösung 1,2, 3 und 4, Storage Buffer) </li><li> Pre-Separation-Filter </li><li> (Optional) Myelin Removal Beads </li><li> Beta-Mercaptoethanol </li><li> gentleMACS Dissociator </li><li> C Tubes </li><li> MACSmix Tube Rotator </li><li> HBSS (w / o) </li><li> HBSS (w) </li></ul><ol><li> Stellen Sie folgende Lösungen vor Beginn des Protokolls: <ol><li> Hanks &#39;Salzlösung ohne zweiwertige Kationen Ca 2 + oder Mg 2 + (HBSS (w / o) </li><li> HBSS, Standard, dh mit Ca 2 + und Mg 2 + (HBSS (w) </li></ol></li><li> Abhängig von der Antigen-Epitop von Interesse in den folgenden Anwendungen verwenden entweder die Papain-basierte Neural Gewebedissoziation Kit (P) oder Trypsin-basierte Neural Gewebedissoziation Kit (T). </li><li> Bereiten Sie die folgenden Lösungen aus dem Nervengewebe Dissoziation Kit: <ol><li> Lösung 2: add beta-Mercaptoethanol bis 0,067 mM </li><li> Lösung 4: Das Pulver in 0,7 ml Lagerpuffer (sofern im Kit enthalten), vorsichtig mischen (nicht vortexen) </li><li> Enzyme Mix 1: Pipette 1,9 ml Lösung 2 und 50 ul Lösung 1 (beide aus Kit) in eine C Tube und Inkubation für 10-15 min bei 37 ° C. Das genügt, um 400 mg des Gehirngewebes zu distanzieren. </li></ol></li></ol> 2. Dissoziation der Nervengewebe <ol><li> Wiegen Hirngewebe in ein Röhrchen mit 1 ml HBSS (w / o) </li><li> Transfer-Maus Gehirn in der C Rohr mit 1950 ul vorgewärmtes Enzyme Mix 1. (Hinweis: Dieses Protokoll ist für ≤ 400 mg geschrieben, aber Lösung Volumes können skaliert auf bis zu 1600 mg Hirngewebe pro C Rohr sein) </li><li> Legen Sie die C Tube auf die gentleMACS Dissociator und Run-Programm &quot;m_brain_01&quot;. </li><li> Inkubieren mit Rotation (4 min mit einem MACSmix Tube Rotator) für 15 min bei 37 ° C. </li><li> Legen Sie die C Tube auf die gentleMACS Dissociator und Run-Programm &quot;m_brain_02&quot;. </li><li> Während der Dissoziation Schritt vorzubereiten 30 ul Enzym Mix 2 pro 400 mg Gewebe durch vorsichtiges Mischen von 20 ul der Lösung 3 und 10 ul Lösung 4. </li><li> Add Enzyme Mix 2 der C Rohr über das Septum-Dichtkappe und vorsichtig mischen, ohne Verwirbelungen. </li><li> Inkubieren Sie die C Tube mit Rotation für 10 min bei 37 ° C im Brutschrank. </li><li> Legen Sie die C Tube auf die gentleMACS Dissociator und Run-Programm &quot;m_brain_03&quot;. </li><li> Inkubieren Sie die C Tube mit Rotation für 10 min bei 37 ° C im Brutschrank. </li><li> Kurz zentrifugieren, um die Probe am Boden des Röhrchens zu sammeln. </li></ol> 3. Filtration <ol><li> Wählen Sie einen Filter groß genug, um den Durchgang zu den Zellen von Interesse erlauben. Zum Beispiel sind Purkinjezellen zu groß, um durch eine 30 pm Filter passieren, aber Prominin-1 + Zellen. </li><li> Verwenden Sie einen suitable1000 ul Pipette auf die Zellen zu entfernen bilden die C Rohr durch das Septum verschlossenen Deckel und es auf die Pre-Separation-Filter auf einem 15 ml-Collection-Tube. (Hinweis: Bei größeren Stichproben mit einem 50 ml-Collection-Tube). </li><li> Waschen Sie den Filter mit 10 ml HBSS (w). </li><li> Centrifuge die gefilterten Zellen bei 300 xg für 10 min bei RT. </li><li> Resuspendieren der Überstand in Ihrem Medium oder Puffer der Wahl für spätere Anwendungen. </li><li> So entfernen Sie Myelin Trümmer, verwenden Myelin Removal Perlen. </li></ol> 4. Repräsentatives Ergebnis: siehe Abbildungen 1-3 <img src="/files/ftp_upload/1267/Fig_1.png" alt="Abb. 1" /> Abbildung. 1 Das Gehirn Dissoziation mit der gentleMACS Dissociator führte in 97% lebensfähige Zellen, wie die durchflusszytometrische Analyse zeigt. <img src="/files/ftp_upload/1267/1267fig2.png" alt="Abb. 2" /> Abbildung. 2 Light-Aufnahme von Neurosphäre Bildung nach magnetischer Zellsortierung mit Anti-Prominin-1 MicroBeads nach 7 Tagen Kultivierung in MACS ® NeuroMedium mit MACS Supplement B27 PLUS ergänzt. Die Zellen wurden aus CD1 Gehirn der Maus (P3) mit dem Neural Gewebedissoziation Kit (P) vorbereitet. <img src="/files/ftp_upload/1267/1267fig4.jpg" alt="Abb. 3.5" /> Abbildung. 3 Myelin Trümmer in Einzel-Zellsuspensionen erheblich beeinträchtigt Zellisolation und das Entfernen von Myelin Trümmer von Myelin Removal Perlen steigert die Effizienz Zelle Trennungen. Für MACS Separations mit Anti-Prominin-1 MicroBeads wurde P22 Maushirn dissoziiert mit dem Neural Gewebedissoziation Kit (P). Zellen aus der Einzel-Zell-Suspension wurden entweder direkt für die Trennung verwendet werden, oder wurden eingereicht, um einer Verarmung Myelin mit Myelin Removal Perlen. Vergleicht man die Trennung von Proben ohne und mit Myelin Entfernung, zeigt, dass die Reinheit höher ist für Proben mit früheren Myelin Entfernung.

<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>

Die Autoren sind Mitarbeiter von Miltenyi Biotec GmbH, Deutschland.

Die gentleMACS Dissociator erleichtert die standardisierte Erstellung von Einzel-Zellsuspensionen von Nervengewebe in einem geschlossenen System. Neural Gewebedissoziation Kits sind optimiert, um Antigen-Epitope für weitere Anwendungen wie Immunofärbungen und immunomagnetische Zellseparation 1-5 benötigt bewahren. In diesem Protokoll zeigen wir die schonende enzymatische Spaltung von Gehirn der Maus mit dem gentleMACS Dissociator und der Neural Gewebedissoziation Kit (P), was in 97% lebensfähige Zellen. 100 mg Nervengewebe Ausbeuten zwischen 5x10 6 und 1x10 7 Zellen, je nach dem Alter der Wirtsgewebe. Die gezielte Prominin-1 + Zellen wurden isoliert mit Anti-Prominin-1 MicroBeads und anschließend in Kultur genommen. Das Protokoll wird gezeigt werden, noch effektiver mit den zusätzlichen Einsatz von Myelin Removal Beads bei der Arbeit mit neuronalen Gewebe von Mäusen&gt; P7 abgeleitet.

<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

Innerhalb des Nervensystems, haben Hunderte von neuronalen und glialen Zelltypen beschrieben worden. Jeder Zelltyp im Gehirn oder Rückenmark hat ein Repertoire von Zelloberflächen-Moleküle oder molekulare Determinanten, durch die sie identifiziert und charakterisiert werden können. Derzeit erfordern robuste Zelle Identifikation und Trenntechnik Single-Cell-Präparate zu erzeugen und gleichzeitig die Begrenzung Zelltod und die Zerstörung der charakteristischen Oberfläche Protein sein. Die gentleMACS Dissociator, wenn es in Kombination mit Trypsin oder Papain-basierte Dissoziation Kits verwendet wird, kann effektiv und schonend distanzieren Hirngewebe unter Beibehaltung Antigen-Epitope und die Begrenzung der Zellverlust. Standardisierte Erstellung von Einzel-Zell-Suspensionen erfolgt über C Rohre und optimiert, Preset gentleMACS Programme. Einmal erzeugt, Einzel-Zellsuspensionen mit monoklonalen Konjugate wie Anti-Prominin-1 MicroBeads, die neuralen Vorläuferzellen zu identifizieren, oder weiter gereinigt mit Myelin Removal Beads behandelt werden.

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

Distanziert Zellen aus bestimmten Gewebearten erfordert spezifische Parameter für Gewebe aggitation zu einem hohen Volumen von lebensfähigen, kultivierbaren Zellen zu erhalten. Die Miltenyi gentleMACS Dissociator optimiert diese Aufgabe mit einem einfachen, praktischen Protokoll. In dieser Veröffentlichung wird die Verwendung dieser Vorrichtung auf nerual Gewebe erklärt.

Generierung von Einzel-Zellsuspensionen aus Maus Nervengewebe

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

Universidad San Sebastian

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JoVE Journal

Biology

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Serie: 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.

Kultur der Maus 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 ...

Forschung

Biologie

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.

Gründung Embryonale Maus Neural Stem Cell Culture Mit dem Neurosphäre 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 ...

Neurowissenschaften

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.

Generierung von neuralen Stammzellen aus menschlichen Föten Ausrangierte Rindengewebe

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.

Eine Maus, zwei Kulturen: Isolierung und Kultur von adulten neuralen Stammzellen aus dem Zwei Neurogene Zonen der einzelnen Mäuse

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.

Isolierung und Kultur von adulten neuralen Stammzellen aus der Maus subcallosa Zone

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.

Isolation und Kultur der embryonalen Maus neurale Stammzellen

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>Effiziente Nukleofektion von NSCs, die aus der subventrikulären Zone der Maus isoliert wurden

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 im Rampenlicht: Verbesserte Nukleofektion für einen hocheffizienten Gentransfer in murinen subventrikulären Zonen abgeleiteten neuralen Stammzellkulturen

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.

Isolierung, Expansion und Nukleofektion von neuralen Stammzellen aus der adulten subventrikulären Zone der Maus

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 ...

Gewinnung von Einzelzellsuspensionen aus dem Gehirn und dem Knochenmark von Mäusen

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 im Rampenlicht: Untersuchung der komplexen Immunantwort nach Hirnischämie

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.

Isolierung von Immunzellen aus dem Gehirn und dem Schädel von Mäusen

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

Generierung von Einzel-Zellsuspensionen aus Maus Nervengewebe

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Isolierung von Immunzellen aus dem Gehirn und dem Schädel von Mäusen