Name: double whole mount in situ hybridization of early chick embryos
Uploaded: 2008-10-27T00:00:00
Description: Watch this Scientific Journal Video about Double Whole Mount in situ Hybridization of Early Chick Embryos at JoVE.com

Diese Arbeit wurde von der Margaret M. Alkek Stiftung RHF unterstützt.

Teil 1: Befestigung des Embryos <ol><li> Füllen Sie Dissektion Schüssel mit eiskaltem DEPC-PBS. Keep on ice. Öffnen Sie das Ei, indem Sie die Schale mit einer Pinzette entfernen und Shell Stücke. </li><li> Entfernen Sie dicke Albumin mit einer Pinzette. Tilt Dottersack mit groben Pinzette so, dass Embryos nach oben zeigt. </li><li> Mit Schere, schnitt ein Quadrat der Dottersack rund um den Embryo. </li><li> Mit Löffel entfernen Embryo aus Eigelb und auf Eis kalt DEPC-PBS. </li><li> Unter dem Mikros...

<ol>
	<li>Streit, A., Berliner, A. J., Papanayotou, C., Sirulnik, A., Stern, C. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Initiation+of+neural+induction+by+FGF+signaling+before+gastrulation.">Initiation of neural induction by FGF signaling before gastrulation.</a> Nature. 406, 74-78 (2000).</li><li>Rodr&#237;guez Esteban, C., Capdevila, J., Economides, A. N., Pascual, J., Ortiz, A., Izpis&#250;a Belmonte, J. 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+novel+Cer-like+protein+Caronte+mediates+the+establishment+of+embryonic+left-right+asymmetry.">The novel Cer-like protein Caronte mediates the establishment of embryonic left-right asymmetry.</a> Nature. 401, 243-251 (1999).</li><li>Psychoyos, D., Stern, C. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Restoration+of+the+organizer+after+radical+ablation+of+Hensen's+node+and+the+anterior+primitive+streak+in+the+chick+embryo.">Restoration of the organizer after radical ablation of Hensen's node and the anterior primitive streak in the chick embryo.</a> Development. 122, 3263-3273 (1996).</li><li>Kawakami, M., Nakanishi, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+role+of+an+endogenous+PKA+inhibitor,+PKIalpha,+in+organizing+left-right+axis+formation.">The role of an endogenous PKA inhibitor, PKIalpha, in organizing left-right axis formation.</a> Development. 128, 2509-2515 (2001).</li><li>Basch, M. L., Bronner-Fraser, M., Garcia-Castro, M. I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Specification+of+the+neural+crest+occurs+during+gastrulation+and+requires+Pax7.">Specification of the neural crest occurs during gastrulation and requires Pax7.</a> Nature. 441, 218-222 (2006).</li></ol>

Die 2-Farben-whole mount in situ Hybridisierung Methode wird verwendet, um sowohl die räumliche und zeitliche Muster der Genexpression zu bestimmen, mit ein oder zwei Gene von Interesse. Zu den Anwendungen gehören Beurteilung der Genexpressionsmuster von neuen Genen (zB 1,2, sowie Veränderungen in der Genexpression nach Beleidigung (embryonale Manipulationen 3, Perlen 4 und Elektroporation von RNA oder DNA-Konstrukte, 5).

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		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<tr>
<td>Eggs</td>
<td>Animal</td>
<td>Charles River </td>
<td>Premium Fertile</td>
<td>&nbsp;</td>
<tr>
<td>Stereomicroscope</td>
<td>Microscope</td>
<td>Leica Microsystems</td>
<td>MZ9.5</td>
<td>&nbsp;</td>
<tr>
<td>Marsh Automatic Incubator</td>
<td>Tool</td>
<td>Lyon</td>
<td>RX</td>
<td>&nbsp;</td>
<tr>
<td>Hybridization Incubator</td>
<td>Tool</td>
<td>Hybaid</td>
<td>Micro-4</td>
<td>&nbsp;</td>
<tr>
<td>Adams Nutator orbital mixer</td>
<td>Tool</td>
<td>Fisher</td>
<td>14-062</td>
<td>&nbsp;</td>
<tr>
<td>Curved Forceps (1)</td>
<td>Tool</td>
<td>Electron Microscopy Sciences</td>
<td>72991-4C</td>
<td>&nbsp;</td>
<tr>
<td>Fine scissors</td>
<td>Tool</td>
<td>Fine Science Tools</td>
<td>14161-10</td>
<td>&nbsp;</td>
<tr>
<td>Spoon</td>
<td>Tool</td>
<td>Fine Science Tools</td>
<td>10370-18</td>
<td>&nbsp;</td>
<tr>
<td>Pasteur Capillary Pipette</td>
<td>&nbsp;</td>
<td>Electron Microscopy Sciences</td>
<td>70950-12</td>
<td>&nbsp;</td>
<tr>
<td>Microcapillary tube</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>P1049-1PAK</td>
<td>Pull using vertical micropipette puller; blunt end with fine forceps</td>
</tr>
<tr>
<td>Microdissecting knife</td>
<td>&nbsp;</td>
<td>Fine Science Tools</td>
<td>10056-12</td>
<td>Use to puncture cavities prior to in situ hybridization</td>
</tr>
<tr>
<td>Minuten pins 0.2mm diam</td>
<td>&nbsp;</td>
<td>Fine Science Tools</td>
<td>26002-20</td>
<td>Keep pins together using a magnetic stirrer;</td>
</tr>
<tr>
<td>Sylgard 184 Silicon Elastomer Curing Agent and Base</td>
<td>Reagent</td>
<td>Dow Corning</td>
<td>0001986475</td>
<td>Mix 1 part Curing Agent, 9 parts Base; set O/N at 37C</td>
</tr>
<tr>
<td>Diethylpyrocarbonate (depc)</td>
<td>Reagent</td>
<td>Acros Organics</td>
<td>10025025</td>
<td>Add 1ml depc to 1l PBS; shake; autoclave</td>
</tr>
<tr>
<td>16% PFA</td>
<td>Reagent</td>
<td>Electron Microscopy Sciences</td>
<td>15710</td>
<td>&nbsp;</td>
<tr>
<td>Tween-20</td>
<td>Reagent</td>
<td>Sigma</td>
<td>P1379-100ML</td>
<td>&nbsp;</td>
<tr>
<td>Proteinase K</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>P2308-5MG</td>
<td>Stock at 10 mg/ml in depc-H2O in 10ul aliquots. Store at -20C.</td>
</tr>
<tr>
<td>Formamide, deionized</td>
<td>Reagent</td>
<td>Ambion</td>
<td>9342</td>
<td>&nbsp;</td>
<tr>
<td>Yeast tRNA-25 mg</td>
<td>Reagent</td>
<td>Invitrogen</td>
<td>15401-011</td>
<td>Stock at 20 mg/ml in depc-H2O in 125ul aliquots. Store at -20C</td>
</tr>
<tr>
<td>Heparin Sodium salt</td>
<td>Reagent</td>
<td>Sigma</td>
<td>H4784-250MG</td>
<td>Stock at 50 mg/ml in depc-H2O in 100ul aliquots. Store at -20C.</td>
</tr>
<tr>
<td>SSC x20 pH5.5</td>
<td>Reagent</td>
<td>Fisher</td>
<td>PR-V4261</td>
<td>&nbsp;</td>
<tr>
<td>EDTA (0.5M)</td>
<td>PR-V4231</td>
<td>Fisher</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>SDS</td>
<td>Reagent</td>
<td>Fisher</td>
<td>BP166-100</td>
<td>&nbsp;</td>
<tr>
<td>Maleic acid</td>
<td>Reagent</td>
<td>Fluka</td>
<td>63189</td>
<td>&nbsp;</td>
<tr>
<td>Boehringer Blocking Reagent</td>
<td>Reagent</td>
<td>Roche Applied Sciences</td>
<td>11096176001</td>
<td>Use at 2% in MABT. To make, heat with MABT for 20 mn at 60C. Can make a stock and store in 1-5 ml aliquots at 20C.</td>
</tr>
<tr>
<td>Heat inactivated sheep serum</td>
<td>Reagent</td>
<td>Jackson Immuno</td>
<td>013-000-121</td>
<td>Dissolve in 10 ml H2O; heat 550C, 30 mn. Aliquot at 1ml, -20C.</td>
</tr>
<tr>
<td>Anti-Digoxigenin-AP, Fab fragments</td>
<td>Reagent</td>
<td>Roche Applied Sciences</td>
<td>11093274910</td>
<td>&nbsp;</td>
<tr>
<td>NBT/BCIP stock solution</td>
<td>Reagent</td>
<td>Roche Applied Sciences</td>
<td>11681451001</td>
<td>&nbsp;</td>
<tr>
<td>Anti-Fluorescein-AP, Fab fragments</td>
<td>Reagent</td>
<td>Roche Applied Sciences</td>
<td>11426338910</td>
<td>&nbsp;</td>
<tr>
<td>2M Tris</td>
<td>BP1759-500</td>
<td>Fisher</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Vector Red Alkaline Phosphatase Substrate Kit</td>
<td>Reagent</td>
<td>Vector Laboratories</td>
<td>SK-5100</td>
<td>&nbsp;</td>
<tr>
<td>1,2,3,4-tetrahydronaphthalene</td>
<td>Reagent</td>
<td>Sigma</td>
<td>429325-100ML</td>
<td>Under hood</td>
</tr>		
</tbody>
</table>
</div>

double whole mount in situ hybridization of early chick embryos

Der Hühnerembryo ist ein wertvolles Werkzeug in der Studie der frühen Embryonalentwicklung. Seine Transparenz, Zugänglichkeit und einfache Handhabung machen ihn zu einem idealen Werkzeug zur Untersuchung der Genexpression im Gehirn, Neuralrohr, Somiten und Herz Primordien Bildung. Dieses Video zeigt die verschiedenen Schritte in 2-Farben-whole mount in situ Hybridisierung; Erste, der Embryo aus dem Ei präpariert und fixiert in Paraformaldehyd. Zweitens ist der Embryo für Prähybridisierung verarbeitet. Der Embryo wird dann mit zwei verschiedenen Sonden, einer gekoppelten DIG, und man gekoppelt an FITC hybridisiert. Nach einer Hybridisierung über Nacht wird der Embryo mit DIG-gekoppelten Antikörper inkubiert. Farbreaktion für DIG Substrat durchgeführt wird, und die Region von Interesse blau erscheint. Der Embryo wird dann mit FITC gekoppelten Antikörper inkubiert. Der Embryo ist für Farbreaktion mit FITC verarbeitet, und die Region von Interesse erscheint rot. Schließlich ist der Embryo fixiert und phtograph verarbeitet und Schneiden. Ein Leitfaden für die Fehlersuche wird ebenfalls vorgestellt.

Watch this Scientific Journal Video about Double Whole Mount in situ Hybridization of Early Chick Embryos at JoVE.com

Double Whole Mount in situ Hybridization of Early Chick Embryos

Dieses Video zeigt 2-Farben-whole mount in situ Hybridisierung, eine Methode, durch die die räumliche und zeitliche Expressionsmuster von 2 unterschiedlichen Genen visualisiert werden bei jungen Hühnerembryonen kann. Diese Methode wurde ursprünglich von David Wilkinson, Domingos Henrique, Phil Ingham und David Ish-Horowicz eingeführt.

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The Fluorescence in situ Hybridization (FISH) method allows one to detect nucleic acids in the native cellular environment. Here we provide a protocol for ...