Name: low-density primary hippocampal neuron culture
Uploaded: 2017-04-18T12:30:00.000+00:00
Duration: 17 min 46 s
Description: Watch this Scientific Journal Video about Low-Density Primary Hippocampal Neuron Culture at JoVE.com

この作品は、TJSにCIHRのMOP-142209によってサポートされていました。

<ol>
	<li>Banker, G. A., Cowan, W. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Rat+hippocampal+neurons+in+dispersed+cell+culture.">Rat hippocampal neurons in dispersed cell culture.</a> Brain Res. 126, 397-425 (1977).</li><li>Kaech, S., Banker, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Culturing+hippocampal+neurons.">Culturing hippocampal neurons.</a> Nat Protoc. 1, 2406-2415 (2006).</li><li>Adamantidis, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Optogenetics:+10+years+after+ChR2+in+neurons--views+from+the+community.">Optogenetics: 10 years after ChR2 in neurons--views from the community.</a> Nat Neurosci. 18, 1202-1212 (2015).</li><li>Ho, V. M., Lee, J. A., Martin, K. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+cell+biology+of+synaptic+plasticity.">The cell biology of synaptic plasticity.</a> Science. 334, 623-628 (2011).</li><li>Huganir, R. L., Nicoll, R. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=AMPARs+and+synaptic+plasticity:+the+last+25+years.">AMPARs and synaptic plasticity: the last 25 years.</a> Neuron. 80, 704-717 (2013).</li><li>Luscher, C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Role+of+AMPA+receptor+cycling+in+synaptic+transmission+and+plasticity.">Role of AMPA receptor cycling in synaptic transmission and plasticity.</a> Neuron. 24, 649-658 (1999).</li><li>Varoqueaux, F., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Neuroligins+determine+synapse+maturation+and+function.">Neuroligins determine synapse maturation and function.</a> Neuron. 51, 741-754 (2006).</li><li>Huettner, J. E., Baughman, R. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Primary+culture+of+identified+neurons+from+the+visual+cortex+of+postnatal+rats.">Primary culture of identified neurons from the visual cortex of postnatal rats.</a> J Neurosci. 6, 3044-3060 (1986).</li><li>Lester, R. A., Quarum, M. L., Parker, J. D., Weber, E., Jahr, C. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Interaction+of+6-cyano-7-nitroquinoxaline-2,3-dione+with+the+N-methyl-D-aspartate+receptor-associated+glycine+binding+site.">Interaction of 6-cyano-7-nitroquinoxaline-2,3-dione with the N-methyl-D-aspartate receptor-associated glycine binding site.</a> Mol Pharmacol. 35, 565-570 (1989).</li><li>Brewer, G. J., Torricelli, J. R., Evege, E. K., Price, P. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Optimized+survival+of+hippocampal+neurons+in+B27-supplemented+Neurobasal,+a+new+serum-free+medium+combination.">Optimized survival of hippocampal neurons in B27-supplemented Neurobasal, a new serum-free medium combination.</a> J Neurosci Res. 35, 567-576 (1993).</li><li>Goslin, K., Asmussen, H., Banker, G., 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=Rat+hippocampal+neurons+in+low-density+culture.">Rat hippocampal neurons in low-density culture.</a> Culturing nerve cells. 2, 339-370 (1998).</li><li>Hanisch, U. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microglia+as+a+source+and+target+of+cytokines.">Microglia as a source and target of cytokines.</a> Glia. 40, 140-155 (2002).</li></ol>

著者は、開示することは何もありません。

神経細胞を培養する「サンドイッチ」法は他の場所2、11、よく説明してきたが、それを採用したい研究者のための欲求不満につながることができ、テキストだけで説明するのは非常に困難なプロトコルを通して、いくつかのステップがあります。 グリア培養、カバースリップ調製ニューロン培養および維持：この方法は、3つ?...

脳は、神経細胞の複雑なネットワークに編成されます。ネットワークアクティビティと脳機能への個々のニューロンの寄与は、それらの分子組成およびそれらの生理学的特性の摂動を選択的に変更することによって研究することができます。個々の神経細胞の遺伝的および化学的操作は、後者の細胞の不均一性と複雑さによって邪魔されない、完全な脳組織よりも培養ニューロンで間違いなく簡単です。培養中のニューロンは、明確に定義された軸索及び樹状アーバを開発し、互いに広範囲シナプス結合を形成します。 成体動物から、または神経系の他の領域からニューロン培養は可能であるが、胚海馬培養物は、しばしば、それらの定義された錐体細胞集団と比較的低いグリア密度1,2に好ましいです。培養物中の低密度で成長させた海馬神経細胞は、特にAMEあります細胞内局在、タンパク質輸送、神経細胞の極性とシナプスの開発の研究にNABLE。培養中のニューロンはまた、広範囲シナプス可塑3、4、5、6分子プロセスを研究に使用されてきました。出生後生存しないグローバルな遺伝的欠失を有するマウスからの神経細胞培養物は、特定の遺伝子7の細胞とシナプスの役割を研究する際に特に有用でした。 脳のように、培養海馬神経細胞はグリア細胞からの栄養支持に依存しています。これは、彼らの文化を複雑にし、このサポートが供給されることにより、いくつかの異なる方法の開発につながっています。 1つの一般的に使用される方法は、グリア細胞8の単層上に直接ニューロンをメッキ、又は取得したヒップから汚染グリア細胞を許すことを含みますocampal組織が増殖し、ニューロン9の下の単層を形成します。この方法はある程度の成功を発見したが、得られた神経細胞培養物の不純物は、画像化実験のために不利です。ニューロン培養物の別の一般的に使用される方法は、完全グリアフィーダー層を、除外し、代わりに定義された成長媒体10の形態の栄養サポートを提供することです。 ここでは、「サンドイッチ」またはニューロン文化2、11の「バンカー」の方法について説明します。この方法は、次いで、パラフィンワックスビーズにより分離グリア細胞の単層上に懸架されたガラスカバースリップ上の海馬ニューロンをめっきすることを含みます。これは、基礎となるグリア単層からの栄養支持を可能にしながらグリアを汚染することなく、ニューロンの均一な集団の長期培養を容易にします。ニューロンは十分な年齢や成熟度レベルである場合には、ニューロンカバースリップは、グリア皿のアウト反転及びイメージング又は機能的アッセイに使用することができます。

<table><tbody><tr><td>&lt;strong&gt;Dissection Instruments&lt;/strong&gt;</td><td></td><td></td><td></td></tr><tr><td>Micro Dissecting Scissors</td><td>Roboz</td><td>RS-5910</td><td></td></tr><tr><td>Micro Dissecting Spring Scissors</td><td>Roboz</td><td>RS-5650</td><td></td></tr><tr><td>Micro Dissecting Spring Scissors</td><td>Roboz</td><td>RS-5605</td><td></td></tr><tr><td>Dumont Forceps (#5)</td><td>Roboz</td><td>RS-5045</td><td></td></tr><tr><td>Dumont Forceps (#PP)</td><td>Roboz</td><td>RS-4950</td><td></td></tr><tr><td>&lt;strong&gt;Name&lt;/strong&gt;</td><td>&lt;strong&gt;Company&lt;/strong&gt;</td><td>&lt;strong&gt;Catalog Number&lt;/strong&gt;</td><td>&lt;strong&gt;Comments&lt;/strong&gt;</td></tr><tr><td>&lt;strong&gt;Tissue Preparation&lt;/strong&gt;</td><td></td><td></td><td></td></tr><tr><td>Trypsin (2.5%)</td><td>Gibco</td><td>15-090-046</td><td></td></tr><tr><td>Trypsin-EDTA (0.25%)</td><td>Gibco</td><td>25-200-072</td><td></td></tr><tr><td>Swinnex Filter Holder, 25&amp;nbsp;mm</td><td>EMD Millipore</td><td>SX0002500</td><td>Used as cell strainer. Assemble first with filter and autoclave</td></tr><tr><td>Isoflorane</td><td>Pharmaceutical Partners of Canada Inc.</td><td>CP0406V2</td><td></td></tr><tr><td>Hemocytometer</td><td>Hausser Scientific</td><td>1492</td><td></td></tr><tr><td>Grade 105 Lens Cleaning Tissue</td><td>GE Healthcare</td><td>2105-841</td><td>Used as cell strainer. Assemble first in filter holder and autoclave</td></tr><tr><td>Glass Pasteur pipettes with cotton filter</td><td>VWR</td><td>14672-412</td><td></td></tr><tr><td>HEPES (1 M)</td><td>Gibco</td><td>15-630-080</td><td></td></tr><tr><td>Hank&#039;s Balanced Salt Solution without Calcium, Magnesium, Phenol Red (HBSS, 10x)</td><td>Gibco</td><td>14-185-052</td><td></td></tr><tr><td>Glass Pasteur pipettes</td><td>VWR</td><td>14672-380</td><td></td></tr><tr><td>Deoxyribonuclease I from bovine pancreas (Dnase)</td><td>Sigma-Aldrich</td><td>DN25-100mg</td><td></td></tr><tr><td>Butane bunsen burner</td><td>Wall-Lenk Mfg. Co.</td><td>Model 65</td><td></td></tr><tr><td>Centrifuge</td><td>Eppendorf</td><td>5810R</td><td></td></tr><tr><td>&lt;strong&gt;Name&lt;/strong&gt;</td><td>&lt;strong&gt;Company&lt;/strong&gt;</td><td>&lt;strong&gt;Catalog Number&lt;/strong&gt;</td><td>&lt;strong&gt;Comments&lt;/strong&gt;</td></tr><tr><td>&lt;strong&gt;Tissue Culture&lt;/strong&gt;</td><td></td><td></td><td></td></tr><tr><td>Penicillin-Streptomycin (10,000 U/mL)</td><td>Gibco</td><td>15-140-122</td><td></td></tr><tr><td>Petri Dish (100 mm)</td><td>Fisher</td><td>FB0875712</td><td></td></tr><tr><td>Petri Dish (60 mm)</td><td>Fisher</td><td>FB0875713A</td><td></td></tr><tr><td>Horse Serum</td><td>Gibco</td><td>16050-122</td><td>Can be used in place of BGS, but each lot must be tested due to inter-lot variation. Heat-inactivation of serum is recommended.</td></tr><tr><td>Sodium Hydroxide</td><td>Fisher Scientific</td><td>S318-1</td><td></td></tr><tr><td>Sodium Pyruvate</td><td>Sigma-Aldrich</td><td>P2256</td><td></td></tr><tr><td>Minimum Essential Medium (MEM)</td><td>Gibco</td><td>11-095-080</td><td></td></tr><tr><td>Neurobasal Medium</td><td>Gibco</td><td>21-103-049</td><td></td></tr><tr><td>L-Glutamine (200 mM)</td><td>Gibco</td><td>25-030-081</td><td></td></tr><tr><td>GlutaMAX Supplement</td><td>Gibco</td><td>35050061</td><td>Can be used in place of L-Glutamine in the NBG medium</td></tr><tr><td>Culture Dish (60 mm)</td><td>Corning, Inc</td><td>353002</td><td></td></tr><tr><td>Culture Flasks (75 cm^2)</td><td>Greiner Bio-One</td><td>658170</td><td></td></tr><tr><td>Cytarabine (Ara-C)</td><td>Sigma-Aldrich</td><td>C3350000</td><td></td></tr><tr><td>D-(+)-Glucose</td><td>Sigma-Aldrich</td><td>G8270</td><td></td></tr><tr><td>Bovine Growth Serum (BGS)</td><td>HyClone</td><td>SH3054103</td><td>Heat-inactivation is recommended before use.</td></tr><tr><td>B27 Supplement (50x)</td><td>Gibco</td><td>17-504-044</td><td></td></tr><tr><td>Dimethyl Sulfoxide (DMSO)</td><td>Sigma-Aldrich</td><td>D8418-100ml</td><td></td></tr><tr><td>Cryogenic Vials</td><td>VWR</td><td>89094-806</td><td></td></tr><tr><td>DL-2-Amino-5-phosphonopentanoic acid (APV)</td><td>Sigma-Aldrich</td><td>A5282</td><td></td></tr><tr><td>&lt;strong&gt;Name&lt;/strong&gt;</td><td>&lt;strong&gt;Company&lt;/strong&gt;</td><td>&lt;strong&gt;Catalog Number&lt;/strong&gt;</td><td>&lt;strong&gt;Comments&lt;/strong&gt;</td></tr><tr><td>&lt;strong&gt;Coverslip Preparation&lt;/strong&gt;</td><td></td><td></td><td></td></tr><tr><td>Sodium tetraborate decahydrate (borax)</td><td>Sigma-Aldrich</td><td>B9876-1KG</td><td></td></tr><tr><td>Poly-L-Lysine Hydrobromide</td><td>Sigma-Aldrich</td><td>P2636</td><td></td></tr><tr><td>Histoplast Paraffin Wax</td><td>Fisher</td><td>22-900-700</td><td></td></tr><tr><td>Gravity Convection Oven</td><td>VWR</td><td>89511-404</td><td>Used for alternative coverslip cleaning method discussed in protocol</td></tr><tr><td>Ultrasonic Bath (Sonicator)</td><td>Fisher Scientific</td><td>15337400</td><td></td></tr><tr><td>Nitric Acid</td><td>Anachemia</td><td>62786-460</td><td></td></tr><tr><td>Ceramic Staining Racks</td><td>Thomas Scientific</td><td>8542E40</td><td>Used for alternative coverslip cleaning method discussed in protocol</td></tr><tr><td>Coverslips</td><td>Glaswarenfabrik Karl Hecht&amp;nbsp;GmbH</td><td>1001/18</td><td>Manufacturer is very important, as neurons do not adhere well to lower quality glass&amp;nbsp;</td></tr><tr><td>Boric Acid</td><td>Sigma-Aldrich</td><td>B0252</td><td></td></tr><tr><td>&lt;strong&gt;Name&lt;/strong&gt;</td><td>&lt;strong&gt;Company&lt;/strong&gt;</td><td>&lt;strong&gt;Catalog Number&lt;/strong&gt;</td><td>&lt;strong&gt;Comments&lt;/strong&gt;</td></tr><tr><td>&lt;strong&gt;Miscellaneous&lt;/strong&gt;</td><td></td><td></td><td></td></tr><tr><td>Sterile Syringe Filters</td><td>VWR</td><td>28145-477</td><td>Used with BD syringe for filter-sterilization</td></tr><tr><td>Syringe&amp;nbsp;</td><td>BD</td><td>302832</td><td>Used with VWR sterile syringe filters for fliter-sterilization</td></tr><tr><td>Water Bath</td><td>Fisher Scientific</td><td>15-460-16Q</td><td></td></tr><tr><td>Inverted Microscope</td><td>Olympus</td><td>CKX41</td><td></td></tr><tr><td>15 mL Conical Sterile Centrifuge Tubes</td><td>ThermoScientific</td><td>339650</td><td></td></tr><tr><td>50 mL Conical Sterile Centrifuge Tubes</td><td>ThermoScientific</td><td>339652</td><td></td></tr></tbody></table>

low-density primary hippocampal neuron culture

文化の中で、個々の神経細胞の構造と生理をプローブする能力は、神経生物学の研究に不可欠である、そして個々のセルまたは定義されたネットワークの遺伝的および化学的操作の柔軟性が可能になります。無傷の脳組織と比較した場合、操作のような容易さは減少培養系で簡単です。これらの一次ニューロンの単離および増殖のための多くの方法が存在するが、それぞれが独自の制限を有します。このプロトコルは、次に、グリア細胞の単層上に懸架されたガラスカバースリップ上に低密度および高純度齧歯類胚の海馬ニューロンを培養するための方法を記載しています。根底にあるグリア単層からの栄養支持を可能にしながらこの「サンドイッチ文化は」ニューロンの人口の排他的な長期的成長が可能になります。ニューロンは十分な年齢や成熟度レベルである場合、ニューロンカバースリップは、グリア皿のアウト反転及びイメージング又は機能的アッセイに使用することができます。ニューロングラムこの方法によるrownは、典型的には、数週間のために生き残るためには、大規模なアーバー、シナプス結合、およびネットワークプロパティを開発しています。

初代神経細胞培養物のこの「サンドイッチ」法では、海馬ニューロン（ 図3）は、パラフィンビーズ（ 図2）により分離グリア細胞（ 図1）のベッドの上で成長します。これは、ニューロンが選択的に最小限のグリア細胞の汚染をカバーガラス上で増殖するが、組織培養皿上で成長しているグリア細胞から十分な栄養サポートを受?...

Watch this Scientific Journal Video about Low-Density Primary Hippocampal Neuron Culture at JoVE.com

Low-Density Primary Hippocampal Neuron Culture

この記事では、グリア単層の上に反転したカバーガラス上で成長する低密度初代海馬神経細胞を培養するためのプロトコルを記述しています。ニューロンとグリアの層は、パラフィンワックスビーズで分離されています。この方法によって成長させた神経細胞は、高分解能光学イメージングおよび機能アッセイに適しています。

低密度初代海馬ニューロンの文化

The ability to probe the structure and physiology of individual nerve cells in culture is crucial to the study of neurobiology, and allows for flexibility ...

low-density-primary-hippocampal-neuron-culture

Universidad de Cartagena UDEC

Research

JoVE Journal

Neuroscience

20.5K ビュー.  University of Manitoba. この記事では、グリア単層の上に反転したカバーガラス上で成長する低密度初代海馬神経細胞を培養するためのプロトコルを記述しています。ニューロンとグリアの層は、パラフィンワックスビーズで分離されています。この方法によって成長させた神経細胞は、高分解能光学イメージングおよび機能アッセイに適しています。 

ビデオ: Low-Density Primary Hippocampal Neuron Culture

Nucleofection and Primary Culture of Embryonic Mouse Hippocampal and Cortical Neurons

Hippocampal and cortical neurons have been used extensively to study central nervous system (CNS) neuronal polarization, axon/dendrite outgrowth, and synapse formation and function. An advantage of culturing these neurons is that they readily polarize, forming distinctive axons and dendrites, on a two dimensional substrate at very low densities. This property has made them extremely useful for determining many aspects of neuronal development. Furthermore, by providing glial conditioning for these neurons they will continue to develop, forming functional synaptic connections and surviving for several months in culture. In this protocol we outline a technique to dissect, culture and transfect embryonic mouse hippocampal and cortical neurons. Transfection is accomplished by electroporating DNA into the neurons before plating via nucleofection. This protocol has the advantage of expressing fluorescently-tagged fusion proteins early in development (~4-8hrs after plating) to study the dynamics and function of proteins during polarization, axon outgrowth and branching. We have also discovered that this single transfection before plating maintains fluorescently-tagged fusion protein expression at levels appropriate for imaging throughout the lifetime of the neuron (&gt; 2 months in culture). Thus, this methodology is useful for studying protein localization and function throughout CNS development with little or no disruption of neuronal function.

This protocol outlines the steps required to dissect, transfect via electroporation and culture mouse hippocampal and cortical neurons. Short-term cultures may be used for studies of axon outgrowth and guidance, while long-term cultures can be used for studies of synaptogenesis and dendritic spine analysis.

Nucleofectionとマウス胎児海馬および皮質ニューロンの初代培養

Hippocampal and cortical neurons have been used extensively to study central nervous system (CNS) neuronal polarization, axon/dendrite outgrowth, and ...

神経科学

Primary Culture of Hippocampal Neurons from P0 Newborn Rats

The physiological properties of hippocampal neurons are commonly investigated, especially because of the involvement of the hippocampus in learning and memory. Primary hippocampal cell culturing allows neuroscientists to examine the activity and properties of neurons at the individual cell and single synapse level. In this video, we will demonstrate how to isolate and grow primary hippocampal cells from newborn rats. The hippocampus may be isolated from each newborn animal in as short as 2 to 3 minutes, and the cultures can be maintained for up to two weeks. We will also briefly demonstrate how to use these hippocampal neurons for ratiometric calcium imaging. While this protocol describes the process for the hippocampus, with little to no modification, it can be applied to other regions of the brain.

The dissection and growth of cells from an individual brain area facilitates investigation of cellular and physiological parameters. We describe a method for primary cell culturing that produces neuron-enriched cultures in a serum-free environment.

P0新生児ラットからの海馬ニューロンの初代培養

The physiological properties of hippocampal neurons are commonly investigated, especially because of the involvement of the hippocampus in learning and ...

生物学

Isolation and Culture of Hippocampal Neurons from Prenatal Mice

Primary cultures of rat and murine hippocampal neurons are widely used to reveal cellular mechanisms in neurobiology. By isolating and growing individual neurons, researchers are able to analyze properties related to cellular trafficking, cellular structure and individual protein localization using a variety of biochemical techniques. Results from such experiments are critical for testing theories addressing the neural basis of memory and learning. However, unambiguous results from these forms of experiments are predicated on the ability to grow neuronal cultures with minimum contamination by other brain cell types. In this protocol, we use specific media designed for neuron growth and careful dissection of embryonic hippocampal tissue to optimize growth of healthy neurons while minimizing contaminating cell types (i.e. astrocytes). Embryonic mouse hippocampal tissue can be more difficult to isolate than similar rodent tissue due to the size of the sample for dissection. We show detailed dissection techniques of hippocampus from embryonic day 19 (E19) mouse pups. Once hippocampal tissue is isolated, gentle dissociation of neuronal cells is achieved with a dilute concentration of trypsin and mechanical disruption designed to separate cells from connective tissue while providing minimum damage to individual cells. A detailed description of how to prepare pipettes to be used in the disruption is included. Optimal plating densities are provided for immuno-fluorescence protocols to maximize successful cell culture. The protocol provides a fast (approximately 2 hr) and efficient technique for the culture of neuronal cells from mouse hippocampal tissue.

We provide a protocol for the culture of highly purified hippocampal neurons from prenatal mouse brains without the use of a feeder glial cell layer.

胎児マウスから海馬ニューロンの単離および培養

Primary cultures of rat and murine hippocampal neurons are widely used to reveal cellular mechanisms in neurobiology. By isolating and growing individual ...

Sex Stratified Neuronal Cultures to Study Ischemic Cell Death Pathways

Sex differences in neuronal susceptibility to ischemic injury and neurodegenerative disease have long been observed, but the signaling mechanisms responsible for those differences remain unclear. Primary disassociated embryonic neuronal culture provides a simplified experimental model with which to investigate the neuronal cell signaling involved in cell death as a result of ischemia or disease; however, most neuronal cultures used in research today are mixed sex. Researchers can and do test the effects of sex steroid treatment in mixed sex neuronal cultures in models of neuronal injury and disease, but accumulating evidence suggests that the female brain responds to androgens, estrogens, and progesterone differently than the male brain. Furthermore, neonate male and female rodents respond differently to ischemic injury, with males experiencing greater injury following cerebral ischemia than females. Thus, mixed sex neuronal cultures might obscure and confound the experimental results; important information might be missed. For this reason, the Herson Lab at the University of Colorado School of Medicine routinely prepares sex-stratified primary disassociated embryonic neuronal cultures from both hippocampus and cortex. Embryos are sexed before harvesting of brain tissue and male and female tissue are disassociated separately, plated separately, and maintained separately. Using this method, the Herson Lab has demonstrated a male-specific role for the ion channel TRPM2 in ischemic cell death. In this manuscript, we share and discuss our protocol for sexing embryonic mice and preparing sex-stratified hippocampal primary disassociated neuron cultures. This method can be adapted to prepare sex-stratified cortical cultures and the method for embryo sexing can be used in conjunction with other protocols for any study in which sex is thought to be an important determinant of outcome.

Primary disassociated embryonic hippocampal neuronal cultures are useful for investigating the signaling mechanisms involved in neuron death. Sexing the embryos before the isolation and dissociation of the hippocampus allows the preparation of separate male and female cultures, which enables the researcher to identify and investigate sex-specific cell signaling.

Sex differences in neuronal susceptibility to ischemic injury and neurodegenerative disease have long been observed, but the signaling mechanisms ...

Rapid Genotyping of Animals Followed by Establishing Primary Cultures of Brain Neurons

High-resolution analysis of the morphology and function of mammalian neurons often requires the genotyping of individual animals followed by the analysis of primary cultures of neurons. We describe a set of procedures for: labeling newborn mice to be genotyped, rapid genotyping, and establishing low-density cultures of brain neurons from these mice. Individual mice are labeled by tattooing, which allows for long-term identification lasting into adulthood. Genotyping by the described protocol is fast and efficient, and allows for automated extraction of nucleic acid with good reliability. This is useful under circumstances where sufficient time for conventional genotyping is not available, e.g., in mice that suffer from neonatal lethality. Primary neuronal cultures are generated at low density, which enables imaging experiments at high spatial resolution. This culture method requires the preparation of glial feeder layers prior to neuronal plating. The protocol is applied in its entirety to a mouse model of the movement disorder DYT1 dystonia (&#916;E-torsinA knock-in mice), and neuronal cultures are prepared from the hippocampus, cerebral cortex and striatum of these mice. This protocol can be applied to mice with other genetic mutations, as well as to animals of other species. Furthermore, individual components of the protocol can be used for isolated sub-projects. Thus this protocol will have wide applications, not only in neuroscience but also in other fields of biological and medical sciences.

We describe procedures for labeling and genotyping newborn mice and generating primary neuronal cultures from them. The genotyping is rapid, efficient and reliable, and allows for automated nucleic-acid extraction. This is especially useful for neonatally lethal mice and their cultures that require prior completion of genotyping.

脳神経細胞の初代培養の確立が続く動物の急速なジェノタイピング

High-resolution analysis of the morphology and function of mammalian neurons often requires the genotyping of individual animals followed by the analysis ...

A Simplified Method for Ultra-Low Density, Long-Term Primary Hippocampal Neuron Culture

Culturing primary hippocampal neurons in vitro facilitates mechanistic interrogation of many aspects of neuronal development. Dissociated embryonic hippocampal neurons can often grow successfully on glass coverslips at high density under serum-free conditions, but low density cultures typically require a supply of trophic factors by co-culturing them with a glia feeder layer, preparation of which can be time-consuming and laborious. In addition, the presence of glia may confound interpretation of results and preclude studies on neuron-specific mechanisms. Here, a simplified method is presented for ultra-low density (~2,000 neurons/cm2), long-term (&#62;3 months) primary hippocampal neuron culture that is under serum free conditions and without glia cell support. Low density neurons are grown on poly-D-lysine coated coverslips, and flipped on high density neurons grown in a 24-well plate. Instead of using paraffin dots to create a space between the two neuronal layers, the experimenters can simply etch the plastic bottom of the well, on which the high density neurons reside, to create a microspace conducive to low density neuron growth. The co-culture can be easily maintained for &#62;3 months without significant loss of low density neurons, thus facilitating the morphological and physiological study of these neurons. To illustrate this successful culture condition, data are provided to show profuse synapse formation in low density cells after prolonged culture. This co-culture system also facilitates the survival of sparse individual neurons grown in islands of poly-D-lysine substrates and thus the formation of autaptic connections.

Low density cultures of primary hippocampal neurons usually require glia feeder layer to supply neurotrophic factors and sustain longevity. We describe here a simplified method to culture ultra-low density neurons on glass coverslips in the presence of a high density neuronal feeder layer, which facilitates investigation of specific neuronal-autonomous mechanisms.

超低密度のために簡略化された方法、長期初代海馬ニューロンの文化

Culturing primary hippocampal neurons in vitro facilitates mechanistic interrogation of many aspects of neuronal development. Dissociated embryonic ...

Super-Resolution Imaging to Study Co-Localization of Proteins and Synaptic Markers in Primary Neurons

Synapses are the functional elements of neurons and their defects or losses are at the basis of several neurodegenerative and neurological disorders. Imaging studies are widely used to investigate their function and plasticity in physiological and pathological conditions. Because of their size and structure, localization studies of proteins require high-resolution imaging techniques. In this protocol, we describe a procedure to study in primary neurons the co-localization of target proteins with synaptic markers at a super-resolution level using structured illumination microscopy (SIM). SIM is a patterned-light illumination technique that doubles the spatial resolution of wide-field microscopy, reaching a detail of around 100 nm. The protocol indicates the required controls and settings for robust co-localization studies and an overview of the statistical methods to analyze the imaging data properly.

This protocol shows how to employ super-resolution microscopy to study protein co-localization in primary neuronal cultures.

一次ニューロンにおけるタンパク質とシナプスマーカーの共局在化を研究する超分解能イメージング

Synapses are the functional elements of neurons and their defects or losses are at the basis of several neurodegenerative and neurological disorders. ...

Easy and Reproducible Low-Density Primary Culture using Frozen Stock of Embryonic Hippocampal Neurons

Neuronal culture is a valuable system for evaluating synaptic functions and drug screenings. In particular, a low-density culture of primary hippocampal neurons allows the study of individual neurons or subcellular components. We have shown subcellular protein localization within a neuron by immunocytochemistry, neuronal polarity, synaptic morphology, and its developmental change using a low-density primary hippocampal culture. Recently, ready-to-use frozen stocks of neurons have become commercially available. These frozen stocks of neurons reduce the time needed to prepare animal experiments and also contribute to the reduction of the number of animals used. Here, we introduce a reproducible low-density primary culture method using a 96-well plate. We used a commercially available frozen stock of neurons from the rat embryonic hippocampus. The neurons can be stably cultured long-term without media changes by reducing the growth of glial cells at particular timepoints. This high-throughput assay using low-density culture allows reproducible imaging-based evaluations of synaptic plasticity.

A ready-to-use frozen stock of neurons is a powerful tool for evaluating synaptic functions. Here, we introduce an easy low-density primary culture from frozen stock using a 96-well plate.

胚性海馬ニューロンの凍結ストックを用いた容易で再現性の高い低密度初代培養

Neuronal culture is a valuable system for evaluating synaptic functions and drug screenings. In particular, a low-density culture of primary hippocampal ...

A Technique to Culture Mouse Hippocampal Neurons

Source: Yang, R., et al. <a href="https://appjove.unicartagenaproxy.elogim.com/v/61411">Use of Primary Cultured Hippocampal Neurons to Study the Assembly of Axon Initial Segments.</a> J. Vis. Exp. (2021)
The video demonstrates a method for culturing neurons from murine hippocampi. Initially, the hippocampi undergo enzymatic digestion to break down the extracellular tissue matrix. Subsequently, the digested tissue is mechanically disrupted to isolate individual neurons. Finally, these neurons are cultured on glial feeder cells.

マウス海馬ニューロンの培養技術

All procedures involving sample collection have been performed in accordance with the institute&#39;s IRB guidelines.
1. Preparing glia cell feeder dishes ...

JoVE Encyclopedia of Experiments

神経細胞培養技術

一次神経細胞培養

Generating a Low-Density Primary Neuron Culture From Frozen Embryonic Neurons

Source: Koganezawa, N. et al., <a href="https://appjove.unicartagenaproxy.elogim.com/v/64872">Easy and Reproducible Low-Density Primary Culture using Frozen Stock of Embryonic Hippocampal Neurons.</a>&#160;J. Vis. Exp. (2023)
This video demonstrates the method of culturing cryopreserved embryonic neurons, involving controlled thawing, dilution with a neurobasal medium, and seeding onto a poly-L-lysine-coated plate. Subsequent incubation supports the growth and maintenance of neuronal connections.

凍結胚性ニューロンからの低密度初代ニューロン培養物の生成

All procedures involving sample collection have been performed in accordance with the institute&#39;s IRB guidelines.
1. Plate coating

	Coat a 96-well ...