Name: primary culture of mouse dopaminergic neurons
Uploaded: 2014-09-08T15:00:00.000+00:00
Duration: 11 min 58 s
Description: Watch this Scientific Journal Video about Primary Culture of Mouse Dopaminergic Neurons at JoVE.com

Supported by grants from CNRS and INSERM. PM acknowledges support from the Fondation pour la Recherche M&#233;dicale en France (Equipe FRM 2009). SC acknowledges support from the Fondation de France.

Die in dieser Arbeit verwendeten Mäuse wurden gepflegt und in Übereinstimmung mit den Richtlinien des Rates der Europäischen Union (86/609 / EU) für den Einsatz von Labortieren behandelt. 1. Herstellung der erforderlichen Lösungen <ol><li> Stammlösungen <ol><li> 10x Poly-L-Ornithin (PLO) Lösung: wiegen 10 mg PLO Hydrobromid (Molekulargewicht = 30,000-70,000) und in 70 ml sterilem Wasser auflösen. Die Lösung wird mit 0,2 um Spritzenfilter, aliquoten, und bei -20 ° C. </li><li> 30% Glucose-Lösung: wiegen 30 g D (+) - Glucose und Auflösen in sterilem Wasser auf ein Gesamtvolumen von 100 ml. Filter, aliquoten, und bei 4 ° C. </li><li> 5x Dulbecco-modifiziertes Eagle-Medium (DMEM) / Nährstoff-Mischung F-12 Ham: abwiegen 6 g DMEM / F-12 Ham Pulver und lösen sich in sterilem Wasser auf ein Gesamtvolumen von 100 ml. Filter, aliquoten, und bei 4 ° C. </li><li> 7,5% Natriumbicarbonat (NaHCO 3) Solutiauf: wiegen 7,5 g NaHCO 3 und lösen sich in sterilem Wasser auf ein Gesamtvolumen von 100 ml. Filter, aliquoten, und bei 4 ° C. </li><li> 1 M HEPES-Lösung: Man wiegt 23,8 g HEPES und Auflösen in sterilem Wasser auf ein Gesamtvolumen von 100 ml. Filter, aliquoten, und bei 4 ° C. </li><li> 70% (v / v) Ethanol: Verdünnen mit 70 ml absolutem Ethanol mit 30 ml sterilem Wasser. </li></ol></li><li> Phosphatgepufferte Kochsalzlösung mit Glucose und Antibiotika (PBS-GAB): 10 ml 30% ige Glucoselösung und 5 ml Penicillin-Streptomycin-Lösung zu 500 ml Dulbeccos phosphatgepufferter Kochsalzlösung. Lagerung bei 4 ° C. </li><li> Inaktiviertes fötales Rinderserum (IFB) auftauen Rinderserum über Nacht bei 4 ° C inaktiviert bei 56 ° C für 30 min. Aliquot in 50 ml und bei -20 ° C. </li><li> Kulturmedium: in sterilem Wasser, Mischung nacheinander mit 40 ml 5x DMEM / F12-Ham, 1 ml 1 M HEPES, 2 ml von 200 mM L-Glutamin, 2 ml Penicillin-Streptomycin, 4 ml 30% Glucose einnd 3 ml 7,5% iger NaHCO 3 auf ein Endvolumen von 180 ml. Zu filtern und verwenden am selben Tag. </li><li> Hormon-Mix <ol><li> Planen 180 ml Kulturmedium. Man löst 200 mg des apo-Transferrin in diesem Medium. </li><li> Man wiegt 50 mg Insulin und in 2 ml 0,1 M HCl zu lösen. Fügen Sie langsam 8 ml sterilem Wasser unter Mischen sanft. Verdünne die Lösung in dem Kulturmedium. </li><li> Wiegen 19,3 mg Putrescin-dihydrochlorid und in 10 ml sterilem Wasser auflösen. Fügen Sie die 10 ml-Lösung auf das Hormon-Mix. </li><li> Bereiten Sie eine 3 mM Natriumselenit-Lösung in sterilem Wasser und 2 mM Progesteron-Lösung in absolutem Ethanol. Mit 20 ul jeder Lösung auf das Hormon-Mix. </li><li> Filtern Sie die Hormon-Mix, Aliquot in 10 ml und bei -20 ° C. </li></ol></li></ol> 2. Herstellung von Kulturplatten und Instrumente <ol><li> FBS Beschichtung der Kulturplatten: Der Tag vor der Dissektion, bereiten 180 ml Kulturmedium. 10 mlIFB auf 90 ml Kulturmedium. Geben Sie 300 ul / Kulturmedium / 10% IFBS in Poly-D-Lysin-Fertig 24-Well-Platten. Inkubieren über Nacht bei 37 ° C aufweist. Bewahren Sie die übrigen Medien (mit und ohne IFBS) bei 4 ° C. </li><li> Sterilisieren die Instrumente und Pasteur-Pipetten. Sammeln Sie die in der Materialliste aufgeführt als Class II Laminarströmungshaube und einem CO 2-Inkubator Ausrüstung. </li></ol> 3. Präparation der Maus Mesencephalon <ol><li> Opfern eine E13.5 schwangere Maus (gemäß gültiger Richtlinien). Reinigen Sie den Bauch der Maus mit 70% Ethanol und öffnen Sie die Bauchdecke. Sammeln Sie die Gebärmutterhörner, öffnen Sie sie mit zarten Schere, sezieren jedem Embryo von der Gebärmutterhörner, und entfernen Sie das Frucht Membranen. Legen Sie die Embryonen in einer 100 mm Petrischale mit sterilem PBS-GAB und waschen Sie sie durch Übertragung in 3 aufeinanderfolgenden gleichen Bäder mit einer Pinzette. Für die Präparation, legen Sie die Embryonen von 3 in einer 60 mm sterilen Petrischale. </li><li> Move die letzten Petrischale unter dem Stereomikroskop. Enthaupten nicht die Embryonen. Verwendung Vannas Schere, die Gehirne herauszuschneiden. <ol><li> Entfernen und entsorgen den Vordergrund und Hinterhirn Regionen. Um rostralen Seite, schneiden in der Nähe des Thalamus-Region, an der Schwanzseite Schnitt an der Landenge Region, entfernen Sie den Colliculus superior. </li><li> Sobald der ventralen Mittelhirn isoliert ist, sorgfältig Hirnhäute mit ultra feinen Pinzette entfernen. Sammeln Sie die Segmente zerlegt, ohne die Hirnhäute, in einer sterilen 13-ml-Tube mit PBS-GAB gefüllt. </li></ol></li><li> Reinigen Sie das Rohr mit dem mesencephala gründlich mit 70% Ethanol und bringen sie unter der Haube. </li></ol> 4. Zelldissoziation <ol><li> Wasch mesencephala mit sterilem PBS-GAB 3x. Erlauben Gehirn Fragmente zwischen jedem Wasch absetzen und vermeiden das Gewebe zu beeinträchtigen. Nach dem letzten Wasch, entfernen Sie sorgfältig, wie viel Lösung wie möglich und Inkubation Gehirn Segmente in 3 ml Trypsin / EDTA für 15 min bei 37 ° C in eineCO 2-Inkubator. </li><li> Feuer-Politur die Pasteur-Pipetten, um das Überleben der Neuronen als das Ende eines nicht-polierten Glaspipette zu maximieren ist scharf und kann die Zellen während der Dissoziation Schritte beschädigen. Reduzieren Sie die Extremität Durchmesser (bis 0,5 mm) des Pasteur-Pipette, während Feuer-polieren. </li><li> So viel Trypsin / EDTA-Lösung entfernen Sie vorsichtig wie möglich und mit 10 ml Kulturmedium / 10% IFBS. Wasch Gehirn Segmente 3x mit Kulturmedium / 10% IFBS. </li><li> Verwendung der feuerpolierten Pasteurpipette beginnen Dissoziation mesencephala in 6 ml Kulturmedium / 10% IFBS. Man reibt 10x (Luftblasen vermeiden), lassen die Stücke zu regeln, dann sammeln das Medium in ein neues steriles 13-ml-Tube. </li><li> 6 ml Kulturmedium, wiederholen Sie den vorherigen Schritt einmal zu sammeln und das Medium mit dissoziierten Zellen in der gleichen 13-ml-Tube. </li><li> Zentrifuge Zellen bei 160 g für 5 min. Überstand verwerfen und Resuspendieren der Zellen in Kulturmedium, ergänzt mit10% Hormon-Mix. </li></ol> 5. Handy-Überzug <ol><li> Zählen von Zellen in Suspension in einem Malassez Zelle und die Lautstärke von mittleren bis zu einer Konzentration von 600.000 Zellen / ml. Rund 1.700.000 Zellen können aus einer Maus Hirn gewonnen werden. </li><li> Entfernen FBS-haltigen Beschichtungsmedium von 24-Well-Platten und fügen Sie in jede Vertiefung 1 ml Zellsuspension (600.000 Zellen / Well, 2-4% der TH + Zellen). </li><li> Inkubieren der Platte bei 37 ° C und 5% CO 2/95% Luft. Kein Medium Veränderung ist notwendig. Dopaminergen Neuronen sind ausgereift nach etwa 5-7 Tagen in vitro (in Übereinstimmung Ausdruck der Dopamin-Transporter). Zellen in Kultur zu halten bis zu 15 Tage ohne Mediumwechsel. </li></ol> 6. Immunfluoreszenz-Protokoll <ol><li> Reinigung der Deckgläser <ol><li> Am Tag vor der Präparation, 10 ml 1 M HCl in eine Petrischale. Lag an der Oberfläche der Flüssigkeit 12-15 Deckgläser und warten Sie 15 min. </li><li> Sinken die Abdeckungschlüpfen in die Flüssigkeit und warten Sie 15 min. </li><li> HCl zu entfernen und waschen 3x mit Wasser. </li><li> Schnell waschen Sie die Deckgläser mit reinem Ethanol einmal, dann fügen reinem Ethanol in die Schale und warten Sie 30 min. </li><li> Unter der Haube entfernen gereinigt Deckgläser aus Ethanol und fügen Sie ein Deckglas pro Vertiefung einer 12-Well-Zellkulturplatte mit sterilisierten Pinzette. </li><li> Waschdeckgläser zweimal mit sterilem Wasser (1 ml / Vertiefung). Dann waschen Sie einmal mit sterilem PBS. </li></ol></li><li> Beschichtung der Deckgläser <ol><li> PBS zu entfernen und fügen Sie 500 ul / 2x PLO (verdünnt in PBS). Inkubation für 4 Stunden bei 37 ° C im CO 2-Inkubator. </li><li> Entfernen Sie die PLO-Lösung und waschen 3x mit sterilem PBS. </li><li> PBS zu entfernen und fügen Sie 500 ul / 20% IFBS / 1 g / ml Laminin. Inkubieren über Nacht bei 37 ° C im CO 2-Inkubator. </li></ol></li><li> Ausplattieren der Zellen für Immunfluoreszenz <ol><li> Entfernen Beschichtungsmedium von 12-Well-Platten. </li><li> Fügen 900,000 Zellen / Vertiefung in 2 ml Volumen und Wachstum der Zellen bei 37 ° C im Brutschrank. Zellen können in Kultur bis zu 15 Tage ohne Mediumwechsel gehalten werden. </li></ol></li><li> Immunfärbung <ol><li> Entfernen Medium von 12-Well-Platten und Waschen mit 500 ul / well DMEM vorgewärmt auf 37 ° C. </li><li> Gib 500 ul / Vertiefung DMEM vorgewärmt auf 37 ° C, dann fügen vorsichtig 160 ul / Vertiefung von 8% Paraformaldehyd (PFA, 2% Endkonzentration) und Inkubation für 10 min bei 37 ° C aufweist. </li><li> PFA entfernen und waschen 3x mit PBS / 0,1 M Glycin für 10 min. </li><li> PBS zu entfernen, fügen Sie 300 ul / PBS / 0,05% Triton X-100/20% Ziegenserum und Inkubation für 30 Minuten bei Raumtemperatur. </li><li> Medium entfernen, werden 300 ul / Vertiefung von primärem Antikörper, verdünnt in PBS / 0,05% Triton X-100/1% Ziegenserum und Inkubation für 2 Stunden bei Raumtemperatur. Primäre Antikörper, die zum Nachweis von dopaminergen Neuronen und Charakterisierung der Kultur verwendet werden können, sind in der Tabelle angegebenen Materialien. Halten1 auch ohne primären Antikörper für Hintergrund der verschiedenen Sekundärantikörper zu bewerten. </li><li> Medium entfernen und waschen 3x mit PBS / 0,2% Gelatine für 10 min. </li><li> Medium entfernen, werden 300 ul / Vertiefung des sekundären Antikörpers, verdünnt in PBS / 0,05% Triton X-100/1% Ziegenserum und Inkubation für 1 h bei Raumtemperatur im Dunkeln. Sekundärantikörper verwendet werden, in der Tabelle angegebenen Materialien. </li><li> Medium entfernen und waschen 3x mit PBS / 0,2% Gelatine für 10 min. </li><li> Medium entfernen und waschen 3x mit PBS. </li><li> Montieren Sie die Deckgläser auf Glasobjektträgern Zellseite nach unten in einem Tropfen Vectashield. Halten Sie die Folien bei Raumtemperatur über Nacht, um die Montage Medium trocknen lassen, dann speichern Sie sie bei 4 ° C. </li><li> Erwerben Sie Bilder mit einem konfokalen Mikroskop oder einem Phasenkontrast Epifluoreszenz ausgestattet. Repräsentative Bilder wurden mit einem Leica SP2 UV konfokalen Mikroskop erfasst. </li></ol></li></ol>

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L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Birth+dating+of+midbrain+dopamine+neurons+identifies+A9+enriched+tissue+for+transplantation+into+parkinsonian+mice.">Birth dating of midbrain dopamine neurons identifies A9 enriched tissue for transplantation into parkinsonian mice.</a> Exp Neurol. 236, 58-68 (2012).</li><li>Ramonet, D., 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=Dopaminergic+neuronal+loss,+reduced+neurite+complexity+and+autophagic+abnormalities+in+transgenic+mice+expressing+G2019S+mutant+LRRK2.">Dopaminergic neuronal loss, reduced neurite complexity and autophagic abnormalities in transgenic mice expressing G2019S mutant LRRK2.</a> PLoS One. 6 (e18568), (2011).</li><li>Prestoz, L., Jaber, M., Gaillard, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dopaminergic+axon+guidance:+which+makes+what.">Dopaminergic axon guidance: which makes what.</a> Front Cell Neurosci. 6, (2012).</li><li>Nunes, I., Tovmasian, L. T., Silva, R. M., Burke, R. E., Goff, S. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pitx3+is+required+for+development+of+substantia+nigra+dopaminergic+neurons.">Pitx3 is required for development of substantia nigra dopaminergic neurons.</a> Proc Natl Acad Sci U S A. 100, 4245-4250 (1073).</li><li>Ferri, A. L., 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=Foxa1+and+Foxa2+regulate+multiple+phases+of+midbrain+dopaminergic+neuron+development+in+a+dosage-dependent+manner.">Foxa1 and Foxa2 regulate multiple phases of midbrain dopaminergic neuron development in a dosage-dependent manner.</a> Development. 134, 2761-2769 (2007).</li><li>Rayport, S., 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=Identified+postnatal+mesolimbic+dopamine+neurons+in+culture:+morphology+and+electrophysiology.">Identified postnatal mesolimbic dopamine neurons in culture: morphology and electrophysiology.</a> J Neurosci. 12, 4264-4280 (1992).</li><li>Kim, K. M., Nakajima, S., Nakajima, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dopamine+and+GABA+receptors+in+cultured+substantia+nigra+neurons:+correlation+of+electrophysiology+and+immunocytochemistry.">Dopamine and GABA receptors in cultured substantia nigra neurons: correlation of electrophysiology and immunocytochemistry.</a> Neuroscience. 78, 759-769 (1997).</li><li>Nefzger, C. M., 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=Lmx1a+allows+context-specific+isolation+of+progenitors+of+GABAergic+or+dopaminergic+neurons+during+neural+differentiation+of+embryonic+stem+cells.">Lmx1a allows context-specific isolation of progenitors of GABAergic or dopaminergic neurons during neural differentiation of embryonic stem cells.</a> Stem Cells. 30, 1349-1361 (2012).</li><li>Su, H., 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=Immediate+expression+of+Cdh2+is+essential+for+efficient+neural+differentiation+of+mouse+induced+pluripotent+stem+cells.">Immediate expression of Cdh2 is essential for efficient neural differentiation of mouse induced pluripotent stem cells.</a> Stem Cell Res. 10, 338-348 (2013).</li></ol>

The authors have nothing to disclose.

Dieses Protokoll stellt die Verfahren und Reagenzien notwendig, eine Primärkultur von Mittelhirnneuronen von der embryonalen Maus und der Immunfluoreszenz-Verfahren zu dopaminergen Neuronen zu erkennen vorzubereiten. Kritische Schritte des Verfahrens sind die Dissektion der Embryonen und die mechanische Dissoziation der Fragmente gesammelt Gehirn. Hochwertige Dissektionsinstrumente hilft, die Technik zu beherrschen Dissektion. DA-Neuronen bilden einen kleinen Teil des Mittelhirns. Dementsprechend sammelt den rechten Te...

Dopamin, eine der wesentlichen Neurotransmitter im Gehirn 1,2, wird hauptsächlich von dopaminergen Mittelhirn (DA) Neuronen freigesetzt. Die Mehrheit der DA Neuronen befinden sich in der ventralen Teil des Mittelhirns 2-6. Mesostriatal, mesolimbischen und mesocorticalen Wege 2,5: schematisch, Mittelhirn-Neuronen DA kann in drei anatomisch und funktionell verschiedene Projektionssysteme aufgeteilt werden. Der Weg wird in nigrostriatale Motorik beteiligt, die mesolimbischen Bahnen spielen eine wichtige Rolle in der Verstärkung, Motivation und Lernen, während die dopaminergen Bahnen zum präfrontalen Kortex vorstehen, sind in Erkenntnis 2 beteiligt. DA-Neuronen in mehreren neurologischen Störungen menschlichen wie Schizophrenie, Aufmerksamkeitsdefizit, Hyperaktivität Erkrankung und Parkinson-Krankheit (PD) 2,4 beteiligt. PD wird durch eine progressive Degeneration der selektiven und DA Neuronen verbinden Substantia nigra gekennzeichnetpars compacta (SNC) zum Striatum. Der Verlust der nigrostriatalen DA Neuronen führt zu einer starken Verarmung Dopamin im Striatum, die verantwortlich für die motorischen Symptome der PD (Bradykinesie, Ruhetremor, und Steifigkeit) 7. Die ursprüngliche Ursache der idiopathischen PD ist nicht nachgewiesen und die aktuellen Behandlungen sind nur symptomatisch, mit dem Ziel der Wiederherstellung Dopaminspiegel im Striatum. Das verschriebene Medikament ist L-Dopa (Levodopa), das natürliche Vorläufer von Dopamin. Obwohl Verabreichung von Levodopa kompensiert den Verlust von Dopamin zu einer bestimmten Zeit auftreten Motor Komplikationen nach einer Langzeitbehandlung (Dyskinesie und / AUS-Zustände) 8,9. Forschung auf dopaminerge Neuronen und PD ist in ständiger Progression und intensive Anstrengungen unternommen werden, um Behandlungen auf Zelltransplantation, Gentherapie, oder neuroprotektive Mittel 10,11 zu entwickeln. Allerdings bleibt ein wichtiges Thema nicht geklärt: Was ist die Ursache für die extreme vulnerability von DA Neuronen? Ein Teil der Antwort kann in der Aktivität von Neuronen DA gefunden werden. Eine Reduktion der elektrischen Aktivität und der Erregbarkeit von DA-Neuronen scheint die Neigung zu degenerieren 12 zu erhöhen. Dennoch ist die Komplexität der PD Pathogenese erfordert weitere Studien, um die Mechanismen in DA Neuronen beteiligt Degeneration 13-15 identifizieren. Primärkulturen sind besonders relevant für die DA Neuron Eigenschaften 16-19 studieren und diese Neuronen auf verschiedene Belastungen für die Bewertung der neuroprotektive Mittel 20-24 herauszufordern. Ratte Kulturmodelle werden häufig verwendet, da die Präparation der Rattenembryohirn ist einfacher, verglichen mit der Maus, und höhere Mengen von Neuronen bei Ratten erhalten werden. Allerdings hat von transgenen Mausmodellen der Krankheit 25 deutlich erhöht das Interesse der Neurowissenschaftler Community für Primärkulturen von der Maus 26-29. Obwohl Kulturen prvon neugeborenen Tieren epared verwendet werden kann, ist es besser, sie von Embryonen im post-mitotischen Stadium (E13.5 für Mesencephalon-Neuronen) herzustellen, wenn Neuronen haben ihre Fähigkeit zur Differenzierung beibehalten. Das folgende Protokoll stellt isoliert Hirn-Neuronen in Primärkultur von Maus-Embryonen (E13.5), die am schwierigsten zu vorzubereiten. Insbesondere stellen wir ein Protokoll mit serumfreiem Kulturmedium für eine bessere Reproduzierbarkeit. Die beiden wichtigsten Schritte in der Kultur-Präparat (Dissektion und mechanische Dissoziation) wird vorsichtig in den zugehörigen Video detailliert werden.

<table><tbody><tr><td>Fetal Bovine Serum</td><td>Lonza</td><td>14-801F</td><td></td></tr><tr><td>DMEM 4.5 g/L glucose with L-glutamine</td><td>Lonza</td><td>BE12-604F</td><td></td></tr><tr><td>0.05% Trypsin-EDTA (1x), phenol red</td><td>Life Technologies</td><td>25300-054</td><td></td></tr><tr><td>Penicillin-Streptomycin (10,000 U/ml)</td><td>Life Technologies</td><td>15140122</td><td></td></tr><tr><td>L-Glutamine, 200 mM solution</td><td>Life Technologies</td><td>25030123</td><td></td></tr><tr><td>Dulbecco&amp;rsquo;s Phosphate Buffered Saline</td><td>Sigma-Aldrich&amp;nbsp;</td><td>D8537</td><td></td></tr><tr><td>Dulbecco&amp;rsquo;s Modified Eagle&amp;rsquo;s Medium/Nutrient Mixture F-12 Ham</td><td>Sigma-Aldrich&amp;nbsp;</td><td>D0547</td><td>Powder</td></tr><tr><td>Laminin - 1 mg/ml in Tris buffered NaCl</td><td>Sigma-Aldrich&amp;nbsp;</td><td>L2020</td><td></td></tr><tr><td>Poly-L-Ornithine hydrobromide</td><td>Sigma-Aldrich&amp;nbsp;</td><td>P3655</td><td></td></tr><tr><td>Insulin from porcine pancreas</td><td>Sigma-Aldrich&amp;nbsp;</td><td>I5523</td><td></td></tr><tr><td>apo-Transferrin human</td><td>Sigma-Aldrich&amp;nbsp;</td><td>T1147</td><td></td></tr><tr><td>Putrescine dihydrochloride</td><td>Sigma-Aldrich&amp;nbsp;</td><td>P5780</td><td></td></tr><tr><td>Progesterone</td><td>Sigma-Aldrich&amp;nbsp;</td><td>P8783</td><td></td></tr><tr><td>Sodium selenite</td><td>Sigma-Aldrich&amp;nbsp;</td><td>S5261</td><td></td></tr><tr><td>HEPES</td><td>Sigma-Aldrich&amp;nbsp;</td><td>H4034&amp;nbsp;</td><td></td></tr><tr><td>Glycine</td><td>Sigma-Aldrich&amp;nbsp;</td><td>G7126</td><td>Stock solution 1 M in water</td></tr><tr><td>Gelatin</td><td>Sigma-Aldrich&amp;nbsp;</td><td>G9391</td><td>Stock solution 2% (w/v) in water</td></tr><tr><td>Triton X-100</td><td>Sigma-Aldrich&amp;nbsp;</td><td>T8532</td><td></td></tr><tr><td>Paraformaldehyde 16% in water</td><td>Electron Microscopy Sciences</td><td>RT 15710-S</td><td></td></tr><tr><td>Sodium bicarbonate (NaHCO&lt;sub&gt;3&lt;/sub&gt;)</td><td>Merck Millipore</td><td>106329</td><td></td></tr><tr><td>D(+)-Glucose, Monohydrate</td><td>Merck Millipore</td><td>4074-2</td><td></td></tr><tr><td>Hydrochloric acid - c(HCl) = 1 mol/L (1 N) Titripur</td><td>Merck Millipore</td><td>109057</td><td></td></tr><tr><td>Sterile water - Aqua B. Braun</td><td>Braun</td><td></td><td></td></tr><tr><td>Ethanol absolute NORMAPUR analytical reagent</td><td>VWR</td><td>20821.321</td><td></td></tr><tr><td>Sterile Petri dishes</td><td>VWR</td><td>82050-566</td><td></td></tr><tr><td>Pasteur pipettes plain glass - Wilhem Ulbrich GdbR.</td><td>VWR</td><td>612-2297</td><td></td></tr><tr><td>Counting chamber Malassez</td><td>VWR</td><td>631-0975</td><td></td></tr><tr><td>Serum Acrodisc Syringe Filter with Supor Membrane, Sterile, GF/0.2 &amp;micro;m, 37 mm</td><td>PALL Life science</td><td>4525</td><td></td></tr><tr><td>Surgical Scissors - Straight, sharp-sharp, 14.5 cm long</td><td>Fine Science Tools</td><td>14002-14</td><td>To open the abdominal wall</td></tr><tr><td>Scissors - Straight, pointed, delicate, 10 cm long</td><td>MORIA</td><td>4877A</td><td>To open the uterine wall</td></tr><tr><td>Forceps - Curved, usual, serrated jaws 1 mm</td><td>MORIA</td><td>2183</td><td>To manipulate embryos</td></tr><tr><td>Vannas Scissors - Curved, pointed, 7 mm blades</td><td>MORIA</td><td>MC50</td><td>To take out the mesencephalon</td></tr><tr><td>Ultra Fine Forceps - Curved, delicate, 13 cm long</td><td>MORIA</td><td>9987</td><td>To remove meninges</td></tr><tr><td>BD BioCoat Poly-D-Lysine 24-well Multiwell Plates</td><td>BD Bioscience</td><td>356414</td><td></td></tr><tr><td>BD Falcon 12-well Cell Culture Plate, flat-bottom with lid</td><td>BD Bioscience</td><td>353043</td><td></td></tr><tr><td>SuperFrost Microscope Slides, Ground edges 90&amp;ordm;</td><td>MENZEL-GL&amp;Auml;SER</td><td>AG00008032E</td><td></td></tr><tr><td>Precision cover glasses thickness No. 1.5H circular 18 mm &amp;Oslash;</td><td>MARIENFELD</td><td>117580</td><td></td></tr><tr><td>Polyclonal Rabbit Anti-Microtubule-Associated Protein 2 (MAP2) Antibody</td><td>Chemicon Millipore</td><td>AB5622</td><td>1/200</td></tr><tr><td>Monoclonal Mouse Anti-Glutamate Decarboxylase (GAD67) Antibody, clone 1G10.2</td><td>Chemicon Millipore</td><td>MAB5406</td><td>1/400</td></tr><tr><td>Monoclonal Rat Anti-Dopamine Transporter (DAT) Antibody, clone DAT-Nt&amp;nbsp;</td><td>Chemicon Millipore</td><td>MAB369</td><td>1/500</td></tr><tr><td>Monoclonal Mouse Anti-5-HT Antibody</td><td></td><td></td><td>1/8,000 - Generous gift from Yves Charnay (Swizerland, Yves.Charnay@hcuge.ch)</td></tr><tr><td>Goat Serum, New Zealand Origin</td><td>Life Technologies</td><td>16210-064</td><td></td></tr><tr><td>Alexa Fluor 405 Goat Anti-Rabbit IgG (H+L) Antibody</td><td>Life Technologies</td><td>A-31556</td><td>1/200</td></tr><tr><td>Alexa Fluor 488 Goat Anti-Mouse IgG (H+L) Antibody</td><td>Life Technologies</td><td>A-11001</td><td>1/1,000</td></tr><tr><td>Alexa Fluor 594 Goat Anti-Rat IgG (H+L) Antibody</td><td>Life Technologies</td><td>A-11007</td><td>1/1,000</td></tr><tr><td>VECTASHIELD HardSet Mounting Medium</td><td>Vector Laboratories</td><td>H-1400</td><td></td></tr><tr><td>Stereomicroscope</td><td>Carl Zeiss microscopy</td><td>Stemi-2000C</td><td></td></tr><tr><td>Bunsen Burner FIREBOY</td><td>VWR</td><td>451-0136</td><td></td></tr></tbody></table>

primary culture of mouse dopaminergic neurons

Dopaminergen Neuronen weniger als 1% der gesamten Anzahl von Neuronen im Gehirn. Diese geringe Menge an Neuronen regelt wichtige Hirnfunktionen wie Motorsteuerung, Motivation und Arbeitsgedächtnis. Nigrostriatalen dopaminergen Neuronen selektiv degenerieren bei Parkinson-Krankheit (PD). Diese fortschreitende Verlust von Nervenzellen ist eindeutig mit den Motoren Symptome der Pathologie (Bradykinesie, Ruhetremor und Muskelstarre) assoziiert. Die wichtigsten Vertreter der dopaminergen Neuronen verantwortlich Degeneration ist noch unbekannt. Allerdings scheinen diese Neuronen extrem anfällig in unterschiedlichen Bedingungen zu sein. Primärkulturen stellen eine der wichtigsten Modelle Eigenschaften und Merkmale von dopaminergen Neuronen zu untersuchen. Diese Kulturen können auf verschiedene Stressmittel, die PD Pathologie imitieren und zu neuroprotektiven Verbindungen, um zu stoppen oder zu verlangsamen neuronale Degeneration vorgelegt werden. Die zahlreichen transgenen Mausmodellen der PD, die Gener habenergaben sich im letzten Jahrzehnt weiter erhöht das Interesse der Forscher für dopaminerge Neuronenkulturen. Hier konzentriert sich das Video-Protokoll auf den empfindlichen Dissektion der embryonalen Gehirn der Maus. Präzise Exzision der ventralen Mittelhirn ist entscheidend für die neuronalen Kulturen ausreichend reich an dopaminergen Zellen zu erhalten, um nachfolgende Studien zu ermöglichen. Dieses Protokoll kann mit embryonalen transgenen Mäusen realisiert werden und ist für die Immunfluoreszenzfärbung, quantitative PCR, second messenger Quantifizierung oder zum neuronalen Tod / Überleben Beurteilung.

Eine illustrierte Flussdiagramm der Mittelhirn-Kultur Schritte ist in Abbildung 1 dargestellt. Kurz gesagt, nach dem Sammeln von E13.5 Embryonen von einer schwangeren Schweizer Maus, Ventralmesenzephalons von der gesamten Embryo seziert. Die isolierten Gehirnfragmente werden nacheinander auf die enzymatische Verdauung und mechanische Dissoziation eingereicht. Dissoziierten Zellen werden durch Zentrifugation pelletiert, in Kulturmedium resuspendiert und in vorbeschichteten 12 oder 24-Well-Platten ausplat...

Watch this Scientific Journal Video about Primary Culture of Mouse Dopaminergic Neurons at JoVE.com

Primary Culture of Mouse Dopaminergic Neurons

Dopaminergic neurons play a vital regulatory role in the brain. Their loss is associated with Parkinson's disease. In this video, we show how to generate primary cultures of central dopaminergic neurons from embryonic mouse mesencephalon. Such cultures are useful to study the extreme vulnerability of these neurons to various stresses.

Primärkultur von Maus dopaminergen Neuronen

Dopaminergic neurons represent less than 1% of the total number of neurons in the brain. This low amount of neurons regulates important brain functions ...

primary-culture-of-mouse-dopaminergic-neurons

Research

JoVE Journal

Neuroscience

37.7K Aufrufe.  Institut de Génomique Fonctionnelle, Montpellier. Dopaminergic neurons play a vital regulatory role in the brain. Their loss is associated with Parkinson's disease. In this video, we show how to generate primary cultures of central dopaminergic neurons from embryonic mouse mesencephalon. Such cultures are useful to study the extreme vulnerability of these neurons to various stresses.

Serie: Primary Culture of Mouse Dopaminergic Neurons

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 und Primärkultur von embryonalen Maus-Hippocampus und kortikalen Neuronen

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

Forschung

Neurowissenschaften

Primary Dissociated Midbrain Dopamine Cell Cultures from Rodent Neonates

The ability to create primary cell cultures of dopamine neurons allows for the study of the presynaptic characteristics of dopamine neurons in isolation from systemic input from elsewhere in the brain. In our lab, we use these neurons to assess dopamine release kinetics using carbon fiber amperometry, as well as expression levels of dopamine related genes and proteins using quantitative PCR and immunocytochemistry. In this video, we show you how we generate these cultures from rodent neonates.
The process involves several steps, including the plating of cortical glial astrocytes, the conditioning of neuronal cell culture media by the glial substrate, the dissection of the midbrain in neonates, the digestion, extraction and plating of dopamine neurons and the addition of neurotrophic factors to ensure cell survival.
The applications suitable for such a preparation include electrophysiology, immunocytochemistry, quantitative PCR, video microscopy (i.e., of real-time vesicular fusion with the plasma membrane), cell viability assays and other toxicological screens.

Primary dissociated midbrain dopamine cell cultures allow for the study of presynaptic characteristics of dopamine neurons. They can be used to monitor real-time dopamine release kinetics and protein/mRNA levels of regulators of dopamine exocytosis. Here, we show you how to generate these cultures from rodent neonates.

Primäre Dissoziierte Mittelhirn Dopamin Zellkulturen aus Nager Neugeborene

The ability to create primary cell cultures of dopamine neurons allows for the study of the presynaptic characteristics of dopamine neurons in isolation ...

Biologie

Derivation of Enriched Oligodendrocyte Cultures and Oligodendrocyte/Neuron Myelinating Co-cultures from Post-natal Murine Tissues

Identifying the molecular mechanisms underlying OL development is not only critical to furthering our knowledge of OL biology, but also has implications for understanding the pathogenesis of demyelinating diseases such as Multiple Sclerosis (MS). Cellular development is commonly studied with primary cell culture models. Primary cell culture facilitates the evaluation of a given cell type by providing a controlled environment, free of the extraneous variables that are present in vivo. While OL cultures derived from rats have provided a vast amount of insight into OL biology, similar efforts at establishing OL cultures from mice has been met with major obstacles. Developing methods to culture murine primary OLs is imperative in order to take advantage of the available transgenic mouse lines. 
Multiple methods for extraction of OPCs from rodent tissue have been described, ranging from neurosphere derivation, differential adhesion purification and immunopurification 1-3. While many methods offer success, most require extensive culture times and/or costly equipment/reagents. To circumvent this, purifying OPCs from murine tissue with an adaptation of the method originally described by McCarthy &amp; 
de Vellis 2 is preferred. This method involves physically separating OPCs from a mixed glial culture derived from neonatal rodent cortices. The result is a purified OPC population that can be differentiated into an OL-enriched culture. This approach is appealing due to its relatively short culture time and the unnecessary requirement for growth factors or immunopanning antibodies. 
While exploring the mechanisms of OL development in a purified culture is informative, it does not provide the most physiologically relevant environment for assessing myelin sheath formation. Co-culturing OLs with neurons would lend insight into the molecular underpinnings regulating OL-mediated myelination of axons. For many OL/neuron co-culture studies, dorsal root ganglion neurons (DRGNs) have proven to be the neuron type of choice. They are ideal for co-culture with OLs due to their ease of extraction, minimal amount of contaminating cells, and formation of dense neurite beds. While studies using rat/mouse myelinating xenocultures have been published 4-6, a method for the derivation of such OL/DRGN myelinating co-cultures from post-natal murine tissue has not been described. Here we present detailed methods on how to effectively produce such cultures, along with examples of expected results. These methods are useful for addressing questions relevant to OL development/myelinating function, and are useful tools in the field of neuroscience.

This article describes methods to derive enriched populations of murine oligodendrocyte precursor cells (OPCs) in primary culture, which differentiate to produce mature oligodendrocytes (OLs). In addition, this report describes techniques to produce murine myelinating co-cultures by seeding mouse OPCs onto a neurite bed of mouse dorsal root ganglion neurons (DRGNs).

Ableitung von Enriched Oligodendrozyten Kulturen und Oligodendrozyten / Neuron myelinisierenden Co-Kulturen von Post-Natal Mausgeweben

Identifying the molecular mechanisms underlying OL development is not only critical to furthering our knowledge of OL biology, but also has implications ...

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, Culture and Long-Term Maintenance of Primary Mesencephalic Dopaminergic Neurons From Embryonic Rodent Brains

Degeneration of mesencephalic dopaminergic (mesDA) neurons is the pathological hallmark of Parkinson&#8217;s diseae. Study of the biological processes involved in physiological functions and vulnerability and death of these neurons is imparative to understanding the underlying causes and unraveling the cure for this common neurodegenerative disorder. Primary cultures of mesDA neurons provide a tool for investigation of the molecular, biochemical and electrophysiological properties, in order to understand the development, long-term survival and degeneration of these neurons during the course of disease. Here we present a detailed method for the isolation, culturing and maintenance of midbrain dopaminergic neurons from E12.5 mouse (or E14.5 rat) embryos. Optimized cell culture conditions in this protocol result in presence of axonal and dendritic projections, synaptic connections and other neuronal morphological properties, which make the cultures suitable for study of the physiological, cell biological and molecular characteristics of this neuronal population.

The causes of degeneration of midbrain dopaminergic neurons during Parkinson&#8217;s disease are not fully understood. Cellular culture systems provide an essential tool for study of the neurophysiological properties of these neurons. Here we present an optimized protocol, which can be utilized for in vitro modeling of neurodegeneration.

Isolation, Kultur und langfristige Wartung von Primär mesencephalen dopaminergen Neuronen aus embryonalen Nagetier Brains

Degeneration of mesencephalic dopaminergic (mesDA) neurons is the pathological hallmark of Parkinson&#8217;s diseae. Study of the biological processes ...

Reliable Identification of Living Dopaminergic Neurons in Midbrain Cultures Using RNA Sequencing and TH-promoter-driven eGFP Expression

In Parkinson&#39;s Disease (PD) there is widespread neuronal loss throughout the brain with pronounced degeneration of dopaminergic neurons in the SNc, leading to bradykinesia, rigidity, and tremor. The identification of living dopaminergic neurons in primary Ventral Mesencephalic (VM) cultures using a fluorescent marker provides an alternative way to study the selective vulnerability of these neurons without relying on the immunostaining of fixed cells. Here, we isolate, dissociate, and culture mouse VM neurons for 3 weeks. We then identify dopaminergic neurons in the cultures using eGFP fluorescence (driven by a Tyrosine Hydroxylase (TH) promoter). Individual neurons are harvested into microcentrifuge tubes using glass micropipettes. Next, we lyse the harvested cells, and conduct cDNA synthesis and transposon-mediated &#34;tagmentation&#34; to produce single cell RNA-Seq libraries1,2,3,4,5. After passing a quality-control check, single-cell libraries are sequenced and subsequent analysis is carried out to measure gene expression. We report transcriptome results for individual dopaminergic and GABAergic neurons isolated from midbrain cultures. We report that 100% of the live TH-eGFP cells that were harvested and sequenced were dopaminergic neurons. These techniques will have widespread applications in neuroscience and molecular biology.

In Parkinson&#39;s Disease (PD), Substantia Nigra (SNc) dopaminergic neurons degenerate, leading to motor dysfunction. Here we report a protocol for culturing ventral midbrain neurons from a mouse expressing eGFP driven by a Tyrosine Hydroxylase (TH) promoter sequence, harvesting individual fluorescent neurons from the cultures, and measuring their transcriptome using RNA-seq.

Zuverlässige Identifikation von Wohn dopaminerge Neurone in Mittelhirns Kulturen unter Verwendung von RNA-Sequenzierung und TH-Promotor getriebene eGFP Expression

In Parkinson&#39;s Disease (PD) there is widespread neuronal loss throughout the brain with pronounced degeneration of dopaminergic neurons in the SNc, ...

Primary Culture of Neurons Isolated from Embryonic Mouse Cerebellum

The use of primary cell cultures has become one of the major tools to study the nervous system in vitro. The ultimate goal of using this simplified model system is to provide a controlled microenvironment and maintain the high survival rate and the natural features of dissociated neuronal and nonneuronal cells as much as possible under in vitro conditions. In this article, we demonstrate a method of isolating primary neurons from the developing mouse cerebellum, placing them in an in vitro environment, establishing their growth, and monitoring their viability and differentiation for several weeks. This method is applicable to embryonic neurons dissociated from cerebellum between embryonic days 12&ndash;18.

Conducting in vitro experiments to reflect in vivo conditions as adequately as possible is not an easy task. The use of primary cell cultures is an important step toward understanding cell biology in a whole organism. The provided protocol outlines how to successfully grow and culture embryonic mouse cerebellar neurons.

Primäre Kultur der Neuronen isoliert von Embryonal Mouse Cerebellum

The use of primary cell cultures has become one of the major tools to study the nervous system in vitro. The ultimate goal of using this simplified model ...

Studying Pre-formed Fibril Induced &#945;-Synuclein Accumulation in Primary Embryonic Mouse Midbrain Dopamine Neurons

The goal of this protocol is to establish a robust and reproducible model of &#945;-synuclein accumulation in primary dopamine neurons. Combined with immunostaining and unbiased automated image analysis, this model allows for the analysis of the effects of drugs and genetic manipulations on &#945;-synuclein aggregation in neuronal cultures. Primary midbrain cultures provide a reliable source of bona fide embryonic dopamine neurons. In this protocol, the hallmark histopathology of Parkinson&#8217;s disease, Lewy bodies (LB), is mimicked by the addition of &#945;-synuclein pre-formed fibrils (PFFs) directly to neuronal culture media. Accumulation of endogenous phosphorylated &#945;-synuclein in the soma of dopamine neurons is detected by immunostaining already at 7 days after the PFF addition. In vitro cell culture conditions are also suitable for the application and evaluation of treatments preventing &#945;-synuclein accumulation, such as small molecule drugs and neurotrophic factors, as well as lentivirus vectors for genetic manipulation (e.g., with CRISPR/Cas9). Culturing the neurons in 96 well plates increases the robustness and power of the experimental setups. At the end of the experiment, the cells are fixed with paraformaldehyde for immunocytochemistry and fluorescence microscopy imaging. Multispectral fluorescence images are obtained via automated microscopy of 96 well plates. These data are quantified (e.g., counting the number of phospho-&#945;-synuclein-containing dopamine neurons per well) with the use of free software that provides a platform for unbiased high-content phenotype analysis. PFF-induced modeling of phosphorylated &#945;-synuclein accumulation in primary dopamine neurons provides a reliable tool to study the underlying mechanisms mediating formation and elimination of &#945;-synuclein inclusions, with the opportunity for high-throughput drug screening and cellular phenotype analysis.

Here, we present a detailed protocol to study neuronal &#945;-synuclein accumulation in primary mouse dopamine neurons. Phosphorylated &#945;-synuclein aggregates in neurons are induced with pre-formed &#945;-synuclein fibrils. Automated imaging of immunofluorescently labeled cells and unbiased image analysis make this robust protocol suitable for medium-to-high throughput screening of drugs that inhibit &#945;-synuclein accumulation.

Studium der vorgeformten Fibril-induzierten Synuclein-Akkumulation in primären embryonalen Maus-Midbrain-Neuronen

The goal of this protocol is to establish a robust and reproducible model of &#945;-synuclein accumulation in primary dopamine neurons. Combined with ...

Culturing and Maintaining Dopaminergic Neurons from Mouse Embryonic Brain Tissue

Source: Weinert, M. et al., <a href="https://app.jove.com/v/52475">Isolation, Culture and Long-Term Maintenance of Primary Mesencephalic Dopaminergic Neurons From Embryonic Rodent Brains.</a> J. Vis. Exp. (2015)
This video outlines a method for cultivating dopaminergic neurons from mouse embryonic brain tissue. The process includes treating the midbrain with a proteolytic enzyme, detaching the cells, and culturing them on polymer-coated coverslips in a nutrient-rich medium with antibiotics for their growth and long-term viability.

Kultivierung und Erhaltung dopaminerger Neuronen aus embryonalem Hirngewebe der Maus

All procedures involving animal models have been reviewed by the local institutional animal care committee and the JoVE veterinary review board.
1. ...

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Neuronal Culture Techniques

Primary Neuronal Culture

Studying Alpha-Synuclein Accumulation in Primary Embryonic Mouse Dopamine Neurons

Source: Er, S. et al., <a href="https://app.jove.com/v/61118">Studying Pre-formed Fibril Induced &#945;-Synuclein Accumulation in Primary Embryonic Mouse Midbrain Dopamine Neurons.</a>&#160;J. Vis. Exp. (2020).
This video demonstrates the process of quantifying alpha-synuclein accumulation in embryonic mouse dopamine neurons pre-treated with alpha-synuclein pre-formed fibrils. It outlines the steps for fixing, staining, and quantifying the dopamine neurons containing alpha-synuclein aggregates using immunofluorescence.

Untersuchung der Alpha-Synuclein-Akkumulation in primären embryonalen Dopamin-Neuronen der Maus

All procedures involving animal samples have been reviewed and approved by the appropriate animal ethical review committee.
1.&#160;Preparation

	Prepare ...