المعهد الوطني للصحة منح DA024009، DK046367 وT32DA007027.

<ol>
	<li>Furness, J. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+enteric+nervous+system+and+neurogastroenterology.">The enteric nervous system and neurogastroenterology.</a> Nat. Rev. Gastroenterol. Hepatol. 9 (5), 286-294 (2012).</li><li>Gershon, M. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+enteric+nervous+system:+A+second+brain.">The enteric nervous system: A second brain.</a> Hosp. Pract. (Minneap). 34 (7), 31-32 (1999).</li><li>Gershon, A. A., Chen, J., Gershon, M. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+model+of+lytic,+latent,+and+reactivating+varicella-zoster+virus+infections+in+isolated+enteric+neurons.">A model of lytic, latent, and reactivating varicella-zoster virus infections in isolated enteric neurons.</a> J. Infect. Dis. 197, 61-65 (2008).</li><li>Wakabayashi, K., Mori, F., Tanji, K., Orimo, S., Takahashi, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Involvement+of+the+peripheral+nervous+system+in+synucleinopathies,+tauopathies+and+other+neurodegenerative+proteinopathies+of+the+brain.">Involvement of the peripheral nervous system in synucleinopathies, tauopathies and other neurodegenerative proteinopathies of the brain.</a> Acta. Neuropathol. 120 (1), 1-12 (2010).</li><li>Hirst, G. D., Holman, M. E., Spence, I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Two+types+of+neurones+in+the+myenteric+plexus+of+duodenum+in+the+guinea-pig.">Two types of neurones in the myenteric plexus of duodenum in the guinea-pig.</a> J. Physiol. 236 (2), 303-326 (1974).</li><li>Clerc, N., Furness, J. B., Bornstein, J. C., Kunze, W. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Correlation+of+electrophysiological+and+morphological+characteristics+of+myenteric+neurons+of+the+duodenum+in+the+guinea-pig.">Correlation of electrophysiological and morphological characteristics of myenteric neurons of the duodenum in the guinea-pig.</a> Neuroscience. 82 (3), 899-914 (1998).</li><li>Rugiero, 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=Analysis+of+whole-cell+currents+by+patch+clamp+of+guinea-pig+myenteric+neurones+in+intact+ganglia.">Analysis of whole-cell currents by patch clamp of guinea-pig myenteric neurones in intact ganglia.</a> J. Physiol. 538 (Pt. 2), 447-463 (2002).</li><li>Jessen, K. R., Saffrey, M. J., Baluk, P., Hanani, M., Burnstock, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+enteric+nervous+system+in+tissue+culture.+III.+studies+on+neuronal+survival+and+the+retention+of+biochemical+and+morphological+differentiation.">The enteric nervous system in tissue culture. III. studies on neuronal survival and the retention of biochemical and morphological differentiation.</a> Brain Res. 262 (1), 49-62 (1983).</li><li>Smith, T. H., Grider, J. R., Dewey, W. L., Akbarali, H. I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Morphine+decreases+enteric+neuron+excitability+via+inhibition+of+sodium+channels.">Morphine decreases enteric neuron excitability via inhibition of sodium channels.</a> PLoS One. 7 (9), e45251 (2012).</li><li>Abdo, 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=Enteric+glial+cells+protect+neurons+from+oxidative+stress+in+part+via+reduced+glutathione.">Enteric glial cells protect neurons from oxidative stress in part via reduced glutathione.</a> FASEB J. 24 (4), 1082-1094 (2010).</li><li>Aube, A. 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=Changes+in+enteric+neurone+phenotype+and+intestinal+functions+in+a+transgenic+mouse+model+of+enteric+glia+disruption.">Changes in enteric neurone phenotype and intestinal functions in a transgenic mouse model of enteric glia disruption.</a> Gut. 55 (5), 630-637 (2006).</li><li>Bassotti, G., 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=Enteric+glial+cells+and+their+role+in+gastrointestinal+motor+abnormalities:+Introducing+the+neuro-gliopathies.">Enteric glial cells and their role in gastrointestinal motor abnormalities: Introducing the neuro-gliopathies.</a> World J. Gastroenterol. 13 (30), 4035-4041 (2007).</li><li>Neal, K. B., Parry, L. J., Bornstein, 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=Strain-specific+genetics,+anatomy+and+function+of+enteric+neural+serotonergic+pathways+in+inbred+mice.">Strain-specific genetics, anatomy and function of enteric neural serotonergic pathways in inbred mice.</a> J. Physiol. 587 (Pt. 3), 567-586 (2009).</li><li>Phillips, R. J., Walter, G. C., Powley, T. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Age-related+changes+in+vagal+afferents+innervating+the+gastrointestinal+tract.">Age-related changes in vagal afferents innervating the gastrointestinal tract.</a> Auton. Neurosci. 153 (1-2), 90-98 (2010).</li><li>Furness, J. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Types+of+neurons+in+the+enteric+nervous+system.">Types of neurons in the enteric nervous system.</a> J. Auton. Nerv. Syst. 81 (1-3), 87-96 (2000).</li><li>Gulbransen, B. D., Sharkey, K. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Novel+functional+roles+for+enteric+glia+in+the+gastrointestinal+tract.">Novel functional roles for enteric glia in the gastrointestinal tract.</a> Nat. Rev. Gastroenterol. Hepatol. 9 (11), 625-632 (2012).</li><li>Pomeranz, H. D., Rothman, T. P., Chalazonitis, A., Tennyson, V. M., Gershon, M. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Neural+crest-derived+cells+isolated+from+the+gut+by+immunoselection+develop+neuronal+and+glial+phenotypes+when+cultured+on+laminin.">Neural crest-derived cells isolated from the gut by immunoselection develop neuronal and glial phenotypes when cultured on laminin.</a> Dev. Biol. 156 (2), 341-361 (1993).</li></ol>

يعلن الكتاب أنه لا توجد المصالح المتنافسة الرئيسية.

الحيوانات المستخدمة وقد تم تحسين هذا البروتوكول بالنسبة السويسري الفئران ويبستر. ومع ذلك، وهذه الطريقة غير قابلة للتكيف بسهولة إلى غيرها من الثدييات الصغيرة مثل الفئران وغيرها من سلالات من الفئران. لقد أجرينا بنجاح العزلة الأولي...

الجهاز العصبي المعوي (ENS) هي شبكة واسعة من الأعصاب والخلايا الدبقية التي تمتد على طول كامل من الجهاز الهضمي (GI) المسالك. وENS تسيطر وظيفيا جميع جوانب الهضم، بما في ذلك التمعج، وامتصاص السوائل / إفراز، والإحساس من المحفزات، الخ (للمراجعة انظر 1). أنه يحتوي على أكثر من 500 مليون خلية عصبية، أكثر من الموجودة في الحبل الشوكي، ويحتوي على كل فئة الناقلات العصبية الموجودة في الدماغ. علاوة على ذلك، ENS هي فريدة من نوعها من حيث أنها يمكن أن تعمل بالغريزة دون مدخلات من الجهاز العصبي المركزي 2. فهم ENS أمر بالغ الأهمية، ليس فقط لفهم دورها فسيولوجية طبيعية، ولكن لفهم مشاركتها في مجموعة متنوعة من اعتلال الأعصاب الذي يمكن أن يكون خلقي (مرض هيرشسبرونغ)، المكتسب (داء شاغاس)، الثانوية لمرض دول (خزل المعدة السكري)، ومكافحة المخدرات التي يسببها (متلازمة الأمعاء الأفيونية)، أو بسبب الاصابة (العلوص بعد الجراحة) 1. وبالإضافة إلى ذلك، يمكن أن الخلايا العصبية المعوية تكون إعادةservoir لعدوى فيروسية (الحماق النطاقي) 3. بسبب التشابه إلى الدماغ ومستويات مرتفعة من السيروتونين في الأمعاء، والأدوية التي تهدف إلى علاج عيوب الجهاز العصبي المركزي غالبا ما يكون لها آثار جانبية غير مرغوب فيها على ENS 2. ومن الجدير بالذكر أيضا أن العديد من اعتلالات الأعصاب مثل مرض الزهايمر ومرض باركنسون تظهر التغيرات الخلوية مماثلة في الخلايا العصبية المعوية طويلة قبل ظهورها في الخلايا العصبية المركزية، مما يجعل ENS نموذج الوصول إليها لدراسة المرضية لهذه الأمراض 4. لذلك، فهم شامل للENS هو ضرورة في فهم الحالات المرضية ومنع / توقع الآثار الجانبية الدوائية. وقد تم دراسة الخلايا العصبية في ENS تقليديا في خنزير غينيا استخدام مستحضرات wholemount 5-7 أو الخلايا العصبية مثقف 8. وعلى الرغم من سهولة في والتي يمكن دراستها الخلايا العصبية في هذه الحيوانات الكبيرة، وهذا النموذج لديه الكثير من القيود بما في ذلكعدم وجود سلالات معدلة وراثيا، والافتقار إلى الكواشف محددة لهذا النوع، والتكلفة العالية المرتبطة اشتري هذه المواضيع والإسكان. تطوير نموذج الجهاز العصبي المعوي الفئران لديه ميزة فريدة من طرق مختلفة من أنظمة، مجموعة واسعة من المنهجيات الأخرى المنشأة التي يمكن استخدامها جنبا إلى جنب مع تقنية زراعة الخلايا، والقدرة على توفير التحقق من صحة لنموذج خنزير غينيا . ويتألف من ثلاثة ENS بلكسى التي تعمل على طول القناة الهضمية: والعضلية المعوية الضفيرة الخارجي (بين العضلات الطولية والدائرية) التي هي المسؤولة أساسا عن تصرفات تحوي من الأمعاء، وكذلك بلكسى تحت المخاطية والمخاطية، ( وجدت تحت وداخل الغشاء المخاطي، على التوالي) التي تسيطر إلى حد كبير امتصاص السوائل / إفراز والكشف عن المنبهات 1. يبدأ هذا الأسلوب مع العزلة من الضفيرة إعداد العضلات / العضلية المعوية طولية (LMMP) عن طريق تقشيرقبالة طبقة العضلات الخارجي من الجهاز الهضمي. هذا يخفض بشكل كبير بانخفاض بشأن قضايا التلوث التي تنشأ عندما تشارك الطبقة المخاطية في عزلة. ونتيجة لذلك، وهذه العملية هي مثالية لدراسة السيطرة العصبية في القدرة على الحركة بدلا من الإجراءات إفرازية من ENS. الطريقة المعروضة هنا النتائج في ثقافة مختلطة من الخلايا العصبية المعوية والخلايا الدبقية. واثنين على الأقل من أنواع مختلفة من الخلايا العصبية موجودة على أساس الملاحظات الكهربية وimmunocytochemical السابقة 9. وجود الخلايا الدبقية هو مفيد للغاية، لأنها ليست سوى نوع من الخلايا الهامة للدراسة في حد ذاتها، ولكن لأنها تسهم في بقاء الخلايا العصبية المعوية 10 والحفاظ على التعبير مستقبلات الأم على سطح الخلية العصبية 11. وعلاوة على ذلك، قد نقص من الدبقية المعوي يؤدي إلى غير طبيعي الجهاز الهضمي الحالات المرضية حركية، صاغ 12 &#39;-gliopathies العصبية&#39;. ولذلك، فإن ثقافة ENS المقدمة هنا Results في العديد من أنواع الخلايا التي أصبحت جاهزة للتحقيق فيها. مزايا لهذه المنهجية هي سهولة العزلة، ومتطلبات أداة غير مكلفة، وفترة زمنية قصيرة لإتقان هذه التقنية من قبل موظفي المختبر ذوي الخبرة. القيود المفروضة على منهجية تشمل انخفاض العائد خلية الإجمالي من وحدات تخزين الأنسجة عالية واستبعاد الخلايا العصبية ENS من بلكسى المخاطية وتحت المخاطية. وسوف يكون هذا الإجراء مفيدا للغاية للعلماء المتخصصين في الكهربية، المناعية، وحيدة الخلية PCR، والمنهجيات الأخرى.

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		<tr height="22">
			<td height="22" style="height:22px;width:291px;"></td>
			<td style="width:171px;"></td>
			<td style="width:137px;"></td>
			<td style="width:79px;">Reagents</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">Fisherbrand Coverglass for Growth Cover Glasses (12 mm diameter)</td>
			<td style="width:171px;">Fisher Scientific</td>
			<td style="width:137px;">12-545-82</td>
			<td style="width:79px;"> </td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:291px;">Poly-D-lysine</td>
			<td style="width:171px;">Sigma</td>
			<td style="width:137px;">P6407- 5 mg</td>
			<td style="width:79px;"> </td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">24-well cell culture plate</td>
			<td style="width:171px;">CELLTREAT</td>
			<td style="width:137px;">229124</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:291px;">Laminin</td>
			<td style="width:171px;">BD Biosciences</td>
			<td style="width:137px;">354 232</td>
			<td style="width:79px;"> </td>
		</tr>
		<tr height="64">
			<td height="64" style="height:64px;width:291px;">ddH2O</td>
			<td style="width:171px;"> </td>
			<td style="width:137px;"> </td>
			<td style="width:79px;">Can prepare in lab </td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">15 ml Sterile Centrifuge Tube</td>
			<td style="width:171px;">Greiner Bio-one</td>
			<td style="width:137px;">188261</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">50 ml Sterile Centrifuge Tube</td>
			<td style="width:171px;">Greiner Bio-one</td>
			<td style="width:137px;">227261</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:291px;">NaCl</td>
			<td style="width:171px;">Fisher BioReagents</td>
			<td style="width:137px;">BP358-212</td>
			<td style="width:79px;">MW 58.44</td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:291px;">KCl</td>
			<td style="width:171px;">Fisher BioReagents</td>
			<td style="width:137px;">BP366-500</td>
			<td style="width:79px;">MW 74.55</td>
		</tr>
		<tr height="26">
			<td height="26" style="height:26px;width:291px;">NaH2PO4 .2H2O</td>
			<td style="width:171px;">Fisher Chemicals</td>
			<td style="width:137px;">S369-3</td>
			<td style="width:79px;">MW137.99</td>
		</tr>
		<tr height="26">
			<td height="26" style="height:26px;width:291px;">MgSO4</td>
			<td style="width:171px;">Sigma Aldrich</td>
			<td style="width:137px;">M7506-500G</td>
			<td style="width:79px;">MW 120.4</td>
		</tr>
		<tr height="26">
			<td height="26" style="height:26px;width:291px;">NaHCO3</td>
			<td style="width:171px;">Sigma Aldrich</td>
			<td style="width:137px;">S6014-5KG</td>
			<td style="width:79px;">MW 84.01</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">glucose</td>
			<td style="width:171px;">Fisher Chemicals</td>
			<td style="width:137px;">D16-1</td>
			<td style="width:79px;">MW 180.16</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">CaCl22H2O</td>
			<td style="width:171px;">Sigma Aldrich</td>
			<td style="width:137px;">C5080-500G</td>
			<td style="width:79px;">MW 147.02</td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:291px;">F12 media</td>
			<td style="width:171px;">Gibco</td>
			<td style="width:137px;">11330</td>
			<td style="width:79px;"> </td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">Fetal Bovine Serum</td>
			<td style="width:171px;">Quality Biological Inc.</td>
			<td style="width:137px;">110-001-101HI</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:291px;">Antibiotic/antimycotic 100x liquid</td>
			<td style="width:171px;">Gibco</td>
			<td style="width:137px;">15240-062</td>
			<td style="width:79px;"> </td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:291px;">Neurobasal A media</td>
			<td style="width:171px;">Gibco</td>
			<td style="width:137px;">10888</td>
			<td style="width:79px;"> </td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:291px;">200 mM L-glutamine</td>
			<td style="width:171px;">Gibco</td>
			<td style="width:137px;">25030164</td>
			<td style="width:79px;"> </td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:291px;">Glial Derived Neurotrophic Factor (GDNF)</td>
			<td style="width:171px;">Neuromics</td>
			<td style="width:137px;">PR27022</td>
			<td style="width:79px;"> </td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">Sharp-Pointed Dissecting Scissors</td>
			<td style="width:171px;">Fisher Scientific</td>
			<td style="width:137px;">8940</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">Dissecting Tissue Forceps</td>
			<td style="width:171px;">Fisher Scientific</td>
			<td style="width:137px;">13-812-41</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">Cotton-Tipped Applicators</td>
			<td style="width:171px;">Fisher Scientific</td>
			<td style="width:137px;">23-400-101</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">250 ml Graduated Glass Beaker</td>
			<td style="width:171px;">Fisher Scientific</td>
			<td style="width:137px;">FB-100-250</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">2 L Glass Erlenmyer flask</td>
			<td style="width:171px;">Fisher Scientific</td>
			<td style="width:137px;">FB-500-2000</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">Plastic rod (child&#39;s paint brush)</td>
			<td style="width:171px;">Crayola</td>
			<td style="width:137px;">05 3516</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="26">
			<td height="26" style="height:26px;width:291px;">Carbogen</td>
			<td style="width:171px;">Airgas</td>
			<td style="width:137px;">UN 3156</td>
			<td style="width:79px;">5% CO2</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">10 ml Leur-lock Syringe</td>
			<td style="width:171px;">Becton Dickinson</td>
			<td style="width:137px;">309604</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">21 G x 1 1/2 in. Hypodermic Needle</td>
			<td style="width:171px;">Becton Dickinson</td>
			<td style="width:137px;">305167</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:291px;">Collagenase type 2</td>
			<td style="width:171px;">Worthington</td>
			<td style="width:137px;">LS004174</td>
			<td style="width:79px;"> </td>
		</tr>
		<tr height="63">
			<td height="84" rowspan="2" style="height:84px;width:291px;">Bovine Serum Albumin</td>
			<td rowspan="2" style="width:171px;">American Bioanalytical</td>
			<td rowspan="2" style="width:137px;">AB00440</td>
			<td rowspan="2" style="width:79px;"> </td>
		</tr>
		<tr height="21">
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">2 ml Microcentrifuge Eppendorf tubes</td>
			<td style="width:171px;">Fisher Scientific</td>
			<td style="width:137px;">13-864-252</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">Nitrex Mesh 500 &#181;M</td>
			<td style="width:171px;">Elko Filtering Co</td>
			<td style="width:137px;">100560</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">Pipette Set</td>
			<td style="width:171px;">Fisher Scientific</td>
			<td style="width:137px;">21-377-328</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:291px;">Sharpeining Stone</td>
			<td style="width:171px;">Fisher Scientific</td>
			<td style="width:137px;">NC9681212</td>
			<td style="width:79px;">May use any brand</td>
		</tr>
	</tbody>
</table>
<table border="0" cellpadding="0" cellspacing="0" width="722">
	<colgroup>
		<col />
		<col />
		<col />
		<col />
	</colgroup>
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:283px;"></td>
			<td style="width:108px;"></td>
			<td style="width:137px;"></td>
			<td style="width:195px;">Equipment</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:283px;">LabGard ES 425 Biological Safety Cabinet (cell culture hood)</td>
			<td style="width:108px;">Nuaire</td>
			<td style="width:137px;">NU-425-400</td>
			<td style="width:195px;">May use any brand</td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:283px;">10 L Shaking Waterbath</td>
			<td style="width:108px;">Edvotek</td>
			<td style="width:137px;">5027</td>
			<td style="width:195px;">May use any brand</td>
		</tr>
		<tr height="64">
			<td height="64" style="height:64px;width:283px;">Microcentrifuge 5417R</td>
			<td style="width:108px;">Eppendorf</td>
			<td style="width:137px;">5417R</td>
			<td style="width:195px;">May use a single larger centrifuge with size adapters</td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:283px;">Allegra 6 Series Centrifuge</td>
			<td style="width:108px;">Beckman Coulter</td>
			<td style="width:137px;">366816</td>
			<td style="width:195px;">May use any brand</td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:283px;">HuluMixer Sample Mixer</td>
			<td style="width:108px;">Invitrogen</td>
			<td style="width:137px;">15920D</td>
			<td style="width:195px;"> </td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:283px;">AutoFlow Water Jacket CO2 Incubator</td>
			<td style="width:108px;">Nuiare</td>
			<td style="width:137px;">NU-4750</td>
			<td style="width:195px;">May use any brand</td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:283px;">Analytical Balance Scale</td>
			<td style="width:108px;">Mettler Toledo</td>
			<td style="width:137px;">XS104</td>
			<td style="width:195px;">May use any brand</td>
		</tr>
	</tbody>
</table>

an in-vitro preparation of isolated enteric neurons and glia from the myenteric plexus of the adult mouse

الجهاز العصبي المعوي هو عبارة عن شبكة واسعة من الخلايا العصبية والدبقية يمتد على طول القناة الهضمية التي تتحكم ظيفيا حركية الجهاز الهضمي. ووصف الإجراء لعزل وثقافة يسكنها خليط من الخلايا العصبية والدبقية من الضفيرة العضلية المعوية. يمكن الحفاظ على الثقافات الأولية لأكثر من 7 أيام، مع وصلات بين الخلايا العصبية النامية والدبقية. يتم تجريد قطاع العضلات الطولية مع المرفقة العضلية المعوية الضفيرة من العضلات الدائرية الكامنة وراء الدقاق الماوس أو القولون وتعرض لعملية الهضم الأنزيمية. في ظروف معقمة، والحفاظ على الخلايا العصبية والدبقية معزولة السكان داخل الكرية التالية الطرد المركزي ومطلي coverslips على. في غضون 24-48 ساعة، يحدث محوار ثمرة ويمكن التعرف على الخلايا العصبية بواسطة علامات عموم العصبية. بعد يومين في الثقافة، والخلايا العصبية معزولة إمكانات العمل النار كما لوحظ من الدراسات المشبك التصحيح. وعلاوة على ذلك، يمكن أيضا أن يكون الدبقية المعوية identifالعبوات الناسفة من قبل GFAP تلطيخ. وهناك شبكة من الخلايا العصبية والدبقية في بدل وثيقة تشكل في غضون 5-7 أيام. يمكن أن الخلايا العصبية المعوية يكون بشكل فردي ودرس مباشرة باستخدام أساليب مثل المناعية، الكهربية، والتصوير الكالسيوم، وحيدة الخلية PCR. وعلاوة على ذلك، هذا الإجراء لا يمكن أن يؤديها في الحيوانات المعدلة وراثيا. هذه المنهجية هي بسيطة وغير مكلفة لأداء. وعموما، هذا البروتوكول إلى الكشف عن مكونات الجهاز العصبي المعوي بطريقة التلاعب بها بسهولة حتى نتمكن من اكتشاف أفضل وظيفة في الولايات ENS العادي والمرض.

<html> سوف العزلة التالية مباشرة من الخلايا المشتقة من LMMP، الخلايا العصبية وأنواع الخلايا الأخرى لا يكون واضحا بسهولة. المعيشة، ويمكن رؤية خلايا جولة من النمط الظاهري غير واضحة وكذلك المخلفات الأنسجة من شظايا الأنسجة هضمها بشكل غير كامل والنسيج الضام. هذا هو حطام سفينة...

Watch this Scientific Journal Video about An In-vitro Preparation of Isolated Enteric Neurons and Glia from the Myenteric Plexus of the Adult Mouse at JoVE.com

An In-vitro Preparation of Isolated Enteric Neurons and Glia from the Myenteric Plexus of the Adult Mouse

نحن يبرهن على وجود بروتوكول زراعة الخلايا لدراسة مباشرة لمكونات الخلايا العصبية والدبقية في الجهاز العصبي المعوي. ويتم إعداد الخلايا العصبية / الدبقية ثقافة مختلطة coverslips على من الضفيرة العضلية المعوية من فأر بالغ توفير القدرة على فحص الخلايا العصبية الفردية وظيفة الخلايا الدبقية التي كتبها الكهربية، المناعى،<em&gt; الخ</em&gt;.

على<em&gt; في المختبر</em&gt; إعداد الخلايا العصبية المعوية المعزولة والدبقية من الضفيرة العضلية المعوية من الماوس الكبار

The enteric nervous system is a vast network of neurons and glia running the length of the gastrointestinal tract that functionally controls ...

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Research

JoVE Journal

Neuroscience

An In-vitro Preparation of Isolated Enteric Neurons and Glia from the Myenteric Plexus of the Adult Mouse

26.5K Views.  Virginia Commonwealth University. نحن يبرهن على وجود بروتوكول زراعة الخلايا لدراسة مباشرة لمكونات الخلايا العصبية والدبقية في الجهاز العصبي المعوي. ويتم إعداد الخلايا العصبية / الدبقية ثقافة مختلطة coverslips على من الضفيرة العضلية المعوية من فأر بالغ توفير القدرة على فحص الخلايا العصبية الفردية و?...

Video: An In-vitro Preparation of Isolated Enteric Neurons and Glia from the Myenteric Plexus of the Adult Mouse

Studying the Integration of Adult-born Neurons

Neurogenesis occurs in adult mammalian brains in the sub-ventricular zone (SVZ) of the lateral ventricle and in the sub-granular zone (SGZ) of the hippocampal dentate gyrus throughout life. Previous reports have shown that adult hippocampal neurogenesis is associated with diverse brain disorders, including epilepsy, schizophrenia, depression and anxiety (1). Deciphering the process of normal and aberrant adult-born neuron integration may shed light on the etiology of these diseases and inform the development of new therapies.
SGZ adult neurogenesis mirrors embryonic and post-natal neuronal development, including stages of fate specification, migration, synaptic integration, and maturation. However, full integration occurs over a prolonged, 6-week period. Initial synaptic input to adult-born SGZ dentate granule cells (DGCs) is GABAergic, followed by glutamatergic input at 14 days (2). The specific factors which regulate circuit formation of adult-born neurons in the dentate gyrus are currently unknown.
Our laboratory uses a replication-deficient retroviral vector based on the Moloney murine leukemia virus to deliver fluorescent proteins and hypothesized regulatory genes to these proliferating cells. This viral technique provides high specificity and resolution for analysis of cell birth date, lineage, morphology, and synaptogenesis.
A typical experiment often employs two or three viruses containing unique label, transgene, and promoter elements for single-cell analysis of a desired developmental process in vivo. The following protocol describes a method for analyzing functional newborn neuron integration using a single green (GFP) or red (dTomato) fluorescent protein retrovirus and patch-clamp electrophysiology.

A way to study the integration of newborn dentate granule cells in adult animals is described. This technique uses an engineered retrovirus to label newborn neurons, followed by electrophysiological recordings to determine in vivo functional integration.

دراسة دمج الكبار المولد الخلايا العصبية

Neurogenesis occurs in adult mammalian brains in the sub-ventricular zone (SVZ) of the lateral ventricle and in the sub-granular zone (SGZ) of the ...

A Visual Description of the Dissection of the Cerebral Surface Vasculature and Associated Meninges and the Choroid Plexus from Rat Brain

This video presentation was created to show a method of harvesting the two most important highly vascular structures, not residing within the brain proper, that support forebrain function. They are the cerebral surface (superficial) vasculature along with associated meninges (MAV) and the choroid plexus which are necessary for cerebral blood flow and cerebrospinal fluid (CSF) homeostasis. The tissue harvested is suitable for biochemical and physiological analysis, and the MAV has been shown to be sensitive to damage produced by amphetamine and hyperthermia 1,2. As well, the major and minor cerebral vasculatures harvested in MAV are of potentially high interest when investigating concussive types of head trauma. The MAV dissected in this presentation consists of the pial and some of the arachnoid membrane (less dura) of the meninges and the major and minor cerebral surface vasculature. The choroid plexus dissected is the structure that resides in the lateral ventricles as described by Oldfield and McKinley3,4,5,6. The methods used for harvesting these two tissues also facilitate the harvesting of regional cortical tissue devoid of meninges and larger cerebral surface vasculature, and is compatible with harvesting other brain tissues such as striatum, hypothalamus, hippocampus, etc. The dissection of the two tissues takes from 5 to 10 min total. The gene expression levels for the dissected MAV and choroid plexus, as shown and described in this presentation can be found at GSE23093 (MAV) and GSE29733 (choroid plexus) at the NCBI GEO repository. This data has been, and is being, used to help further understand the functioning of the MAV and choroid plexus and how neurotoxic events such as severe hyperthermia and AMPH adversely affect their function.

This video presentation shows a method of harvesting the two most important highly vascular structures that support forebrain function. They are the cerebral surface (superficial) vasculature along with associated meninges (MAV) and the choroid plexus which are necessary for cerebral blood flow and cerebrospinal fluid (CSF) homeostasis.

A وصف البصرية في تشريح الأوعية الدموية السطحية والسحايا الدماغي المقترن والضفيرة المشيمية من دماغ الفئران

This video presentation was created to show a method of harvesting the two most important highly vascular structures, not residing within the brain ...

An Isolated Semi-intact Preparation of the Mouse Vestibular Sensory Epithelium for Electrophysiology and High-resolution Two-photon Microscopy

Understanding vestibular hair cells function under normal conditions, or how trauma, disease, and aging disrupt this function is a vital step in the development of preventative approaches and/or novel therapeutic strategies. However, the majority of studies looking at abnormal vestibular function have not been at the cellular level but focused primarily on behavioral assays of vestibular dysfunction such as gait analyses and vestibulo-ocular reflex performance. While this work has yielded valuable data about what happens when things go wrong, little information is gleaned regarding the underlying causes of dysfunction. Of the studies that focus on the cellular and subcellular processes that underlie vestibular function, most have relied on acutely isolated hair cells, devoid of their synaptic connections and supporting cell environment. Therefore, a major technical challenge has been access to the exquisitely sensitive vestibular hair cells in a preparation that is least disrupted, physiologically. Here we demonstrate a semi-intact preparation of the mouse vestibular sensory epithelium that retains the local micro-environment including hair cell/primary afferent complexes.

Analysis of vestibular hair cell function is complicated by their location deep within the hardest part of the skull, the petrous temporal bone. Most functional hair cell studies have used acutely isolated hair cells. Here we describe a semi-intact preparation of mouse vestibular epithelium for electrophysiological and two-photon microscopy studies.

استعدادا شبه سليمة المعزولة من الفأر الدهليزي الظهارة الحسية للالكهربية وعالية الدقة الميكروسكوب ثنائي الفوتون

Understanding vestibular hair cells function  under normal conditions, or how trauma, disease, and aging disrupt this  function is a vital step in the ...

An In Vitro Adult Mouse Muscle-nerve Preparation for Studying the Firing Properties of Muscle Afferents

Muscle sensory neurons innervating muscle spindles and Golgi tendon organs encode length and force changes essential to proprioception. Additional afferent fibers monitor other characteristics of the muscle environment, including metabolite buildup, temperature, and nociceptive stimuli. Overall, abnormal activation of sensory neurons can lead to movement disorders or chronic pain syndromes. We describe the isolation of the extensor digitorum longus (EDL) muscle and nerve for in vitro study of stretch-evoked afferent responses in the adult mouse. Sensory activity is recorded from the nerve with a suction electrode and individual afferents can be analyzed using spike sorting software. In vitro preparations allow for well controlled studies on sensory afferents without the potential confounds of anesthesia or altered muscle perfusion. Here we describe a protocol to identify and test the response of muscle spindle afferents to stretch. Importantly, this preparation also supports the study of other subtypes of muscle afferents, response properties following drug application and the incorporation of powerful genetic approaches and disease models in mice.

An In Vitro Adult Mouse Muscle-nerve Preparation for Studying the Firing Properties of Muscle Afferents

Muscle sensory neurons are involved in proprioceptor signaling and also report on metabolic state and injury related events. We describe an adult mouse in vitro muscle-nerve preparation for studies on stretch-activated muscle afferents.

و<em&gt; في المختبر</em&gt; ماوس الكبار إعداد العضلات العصبية لدراسة خصائص اطلاق Afferents العضلات

Muscle sensory neurons innervating muscle spindles and Golgi tendon organs encode length and force changes essential to proprioception. Additional ...

Environmental Modulations of the Number of Midbrain Dopamine Neurons in Adult Mice

Long-lasting changes in the brain or &#8216;brain plasticity&#8217; underlie adaptive behavior and brain repair following disease or injury. Furthermore, interactions with our environment can induce brain plasticity. Increasingly, research is trying to identify which environments stimulate brain plasticity beneficial for treating brain and behavioral disorders. Two environmental manipulations are described which increase or decrease the number of tyrosine hydroxylase immunopositive (TH+, the rate-limiting enzyme in dopamine (DA) synthesis) neurons in the adult mouse midbrain. The first comprises pairing male and female mice together continuously for 1 week, which increases midbrain TH+ neurons by approximately 12% in males, but decreases midbrain TH+ neurons by approximately 12% in females. The second comprises housing mice continuously for 2 weeks in &#8216;enriched environments&#8217; (EE) containing running wheels, toys, ropes, nesting material, etc., which increases midbrain TH+ neurons by approximately 14% in males. Additionally, a protocol is described for concurrently infusing drugs directly into the midbrain during these environmental manipulations to help identify mechanisms underlying environmentally-induced brain plasticity. For example, EE-induction of more midbrain TH+ neurons is abolished by concurrent blockade of synaptic input onto midbrain neurons. Together, these data indicate that information about the environment is relayed via synaptic input to midbrain neurons to switch on or off expression of &#8216;DA&#8217; genes. Thus, appropriate environmental stimulation, or drug targeting of the underlying mechanisms, might be helpful for treating brain and behavioral disorders associated with imbalances in midbrain DA (e.g. Parkinson&#8217;s disease, attention deficit and hyperactivity disorder, schizophrenia, and drug addiction).

This protocol describes two different environmental manipulations and a concurrent brain infusion protocol to study environmentally-induced brain changes underlying adaptive behavior and brain repair in adult mice.

التحويرات البيئية لعدد من الدماغ المتوسط ​​الدوبامين العصبية في الفئران الكبار

Long-lasting changes in the brain or &#8216;brain plasticity&#8217; underlie adaptive behavior and brain repair following disease or injury. Furthermore, ...

The Indirect Neuron-astrocyte Coculture Assay: An In Vitro Set-up for the Detailed Investigation of Neuron-glia Interactions

Proper neuronal development and function is the prerequisite of the developing and the adult brain. However, the mechanisms underlying the highly controlled formation and maintenance of complex neuronal networks are not completely understood thus far. The open questions concerning neurons in health and disease are diverse and reaching from understanding the basic development to investigating human related pathologies, e.g.,&#160;Alzheimer&#39;s disease and&#160;Schizophrenia. The most detailed analysis of neurons can be performed in vitro. However, neurons are demanding cells and need the additional support of astrocytes for their long-term survival. This cellular heterogeneity is in conflict with the aim to dissect the analysis of neurons and astrocytes. We present here a cell-culture assay that allows for the long-term cocultivation of pure primary neurons and astrocytes, which share the same chemically defined medium, while being physically separated. In this setup, the cultures survive for up to four weeks and the assay is suitable for a diversity of investigations concerning neuron-glia interaction.

The Indirect Neuron-astrocyte Coculture Assay: An In Vitro Set-up for the Detailed Investigation of Neuron-glia Interactions

This protocol describes the indirect neuron-astrocyte coculture for compartmentalized analysis of neuron-glia interactions.

وغير المباشرة العصبية نجمية Coculture الفحص: هناك<em&gt; في المختبر</em&gt; مجموعة المتابعة للتحقيق مفصل من التفاعلات العصبية، الدبقية

Proper neuronal development and function is the prerequisite of the developing and the adult brain. However, the mechanisms underlying the highly ...

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.

العزلة والثقافة من الخلايا الجذعية البالغة العصبية من المنطقة تحت الثفني ماوس

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

Tuning in the Hippocampal Theta Band In Vitro: Methodologies for Recording from the Isolated Rodent Septohippocampal Circuit

This protocol outlines the procedures for preparing and recording from the isolated whole hippocampus, of WT and transgenic mice, along with recent improvements in methodologies and applications for the study of theta oscillations. A simple characterization of the isolated hippocampal preparation is presented whereby the relationship between internal hippocampal theta oscillators is examined together with the activity of pyramidal cells, and GABAergic interneurons, of the cornu ammonis-1 (CA1) and subiculum (SUB) areas. Overall, we show that the isolated hippocampus is capable of generating intrinsic theta oscillations in vitro and that rhythmicity generated within the hippocampus can be precisely manipulated by optogenetic stimulation of parvalbumin-positive (PV) interneurons. The in vitro isolated hippocampal preparation offers a unique opportunity to use simultaneous field and intracellular patch-clamp recordings from visually-identified neurons to better understand the mechanisms underlying theta rhythm generation.

Tuning in the Hippocampal Theta Band In Vitro: Methodologies for Recording from the Isolated Rodent Septohippocampal Circuit

Here, we present a protocol for recording rhythmic neuronal network theta and gamma oscillations from an isolated whole hippocampal preparation. We describe the experimental steps from extraction of the hippocampus to details of field, unitary and whole-cell patch clamp recordings as well as optogenetic pacing of the theta rhythm.

ضبط في الحصين ثيتا الفرقة<em&gt; في المختبر</em&gt;: منهجيات لتسجيل من القوارض معزولة سيبوهيبوكامبال الدائرة

This protocol outlines the procedures for preparing and recording from the isolated whole hippocampus, of WT and transgenic mice, along with recent ...

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.

الثقافة الاساسيه للخلايا العصبية معزولة عن المخيخ الفئران الجنينية

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 ...

Cochlear Surface Preparation in the Adult Mouse

Auditory processing in the cochlea depends on the integrity of the mechanosensory hair cells. Over a lifetime, hearing loss can be acquired from numerous etiologies such as exposure to excessive noise, the use of ototoxic medications, bacterial or viral ear infections, head injuries, and the aging process. Loss of sensory hair cells is a common pathological feature of the varieties of acquired hearing loss. Additionally, the inner hair cell synapse can be damaged by mild insults. Therefore, surface preparations of cochlear epithelia, in combination with immunolabeling techniques and confocal imagery, are a very useful tool for the investigation of cochlear pathologies, including losses of ribbon synapses and sensory hair cells, changes in protein levels in hair cells and supporting cells, hair cell regeneration, and determination of report gene expression (i.e., GFP) for verification of successful transduction and identification of transduced cell types. The cochlea, a bony spiral-shaped structure in the inner ear, holds the auditory sensory end organ, the organ of Corti (OC). Sensory hair cells and surrounding supporting cells in the OC are contained in the cochlear duct and rest on the basilar membrane, organized in a tonotopic fashion with high-frequency detection occurring in the base and low-frequency in the apex. With the availability of molecular and genetic information and the ability to manipulate genes by knockout and knock-in techniques, mice have been widely used in biological research, including in hearing science. However, the adult mouse cochlea is miniscule, and the cochlear epithelium is encapsulated in a bony labyrinth, making microdissection difficult. Although dissection techniques have been developed and used in many laboratories, this modified microdissection method using cell and tissue adhesive is easier and more convenient. It can be used in all types of adult mouse cochleae following decalcification.

This article presents a modified cochlear surface preparation method that requires decalcification and use of a cell and tissue adhesive to adhere the pieces of cochlear epithelia to 10 mm round cover slips for immunohistochemistry in adult mouse cochleae.

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Auditory processing in the cochlea depends on the integrity of the mechanosensory hair cells. Over a lifetime, hearing loss can be acquired from numerous ...