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

עבודה זו נתמכה על ידי MOP-142,209 CIHR כדי TJS.

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

החוקרים אין לחשוף.

בעוד השיטה &quot;כריך&quot; של נוירונים culturing כבר היטב תיאר במקום 2, 11, ישנם מספר צעדים בכל פרוטוקול כי הם די קשה לתאר בצורה של טקסט בלבד, מה שעלול להוביל לתסכול עבור חוקרים המבקשים לאמץ אותו. השיטה ניתן לח...

המוח מאורגן רשתות מורכבות של נוירונים. תרומתו של נוירונים בודדים לפעילות הרשת תפקוד המוח יכול להיחקר על ידי שינוי סלקטיבית של ההרכב המולקולרי שלהם perturbance של המאפיינים הפיזיולוגיים שלהם. מניפולציה גנטית וכימית של נוירונים בודדים היא ללא ספק קל יותר ב נוירונים בתרבית מאשר רקמת מוח שלמה, משוחרר על ידי ההטרוגניות המורכבות הסלולר של האחרונים. נוירונים בתרבית לפתח אקסונלית מוגדרת היטב סוכות דנדריטים וליצור קשרים סינפטיים נרחבים עם שני. בעוד נוירון תרבות מחיות מבוגרות או מאזורים אחרים של מערכת העצבים אפשרית, תרבויות בהיפוקמפוס עובריות הם העדיפו לעתים קרובות בשל אוכלוסיית תאי פירמידליים המוגדרת שלהם וצפיפות גליה נמוכה יחסית 1, 2. נוירונים בהיפוקמפוס גדל בצפיפות נמוכה בתרבות במיוחד AMENable ללימוד לוקליזציה subcellular, סחר חלבון, קוטביות עצבית ופיתוח סינפסה. נוירונים בתרבית גם הועסק נרחב בלימוד תהליכים מולקולריים הפלסטיות הסינפטית 3, 4, 5, 6. הכנות תרבות Neuron מעכברים עם מחיקות גנטיות עולמיות כי אינו שורד לאחר לידה כבר שימושיות במיוחד בלימוד התפקידים הסלולר סינפטיים של גנים מסוימים 7. כמו במוח, נוירונים בהיפוקמפוס תרבותיים תלויים תמיכה טרופית מתא גליה. זה מסבך את התרבות שלהם, והוא הוביל את הפיתוח של מספר שיטות שונות שבאמצעותם תמיכה זו מסופקת. אחת שיטות נפוצות כרוכות ציפוי נוירונים ישירות על בשכבה של תאי גליה 8, או המאפשר ותאי גלייה מזהמים מן Hipp רכשהרקמת ocampal להתרבות וליצור בשכבה מתחת נוירונים 9. אמנם שיטה זו מצאה כמה הצלחה, הטומאה של התרבות העצבית וכתוצאה היא נחה עבור ניסויי הדמיה. שיטה נפוצה נוספת של תרבות נוירון היא לעזוב-אאוט המזין גליה שכבה לגמרי, ובמקום לספק תמיכה טרופית בצורת מדיום גידול מוגדר 10. כאן, אנו מתארים את &quot;כריך&quot; או &quot;בנקר&quot; השיטה של נוירון תרבות 2, 11. שיטה זו כרוכה ציפוי נוירונים בהיפוקמפוס על coverslips זכוכית, אשר מושעים אז מעל בשכבה של תאי גליה מופרדים חרוזי פראפין. זה מקל על תרבות ארוכת טווח של אוכלוסייה הומוגנית של נוירונים מבלי לזהם גליה ובה בעת לאפשר תמיכה טרופית מן בשכבת גליה הבסיסית. כאשר הנוירונים הם גילו מספיק או רמת בגרות,ניתן והדפוק את coverslips נוירון של מנת גליה ו המשמש להדמיה או מבחנים תפקודיים.

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

low-density primary hippocampal neuron culture

היכולת לחקור את המבנה והפיזיולוגיה של תאי עצב בודדים בתרבות חיונית לחקר בנוירוביולוגיה, מקנה גמישות מניפולציה גנטית וכימי של תאים בודדים או רשתות מוגדרות. הקלות של מניפולציה כזו היא פשוטה במערכת התרבות המופחתת בהשוואת רקמת המוח השלמה. בעוד שיטות רבות עבור הבידוד והצמיחה של הנוירונים העיקריים האלה קיימות, לכל אחד מהם יש מגבלות משלה. פרוטוקול זה מתאר שיטה culturing נוירונים בהיפוקמפוס עובריים בצפיפות נמוכה גבוהה טוהר מכרסם על coverslips זכוכית, אשר מושעים אז מעל בשכבה של תאי גליה. זו &quot;תרבות הכריך&quot; מאפשרת לצמיחה ארוך טווח בלעדי של אוכלוסייה של נוירונים ובה בעת לאפשר תמיכה טרופית מן בשכבת גליה הבסיסית. כאשר הנוירונים הם גילו מספיק או לרמת בשלות, את coverslips נוירון ניתן ודפוק של מנת גליה ו המשמש להדמיה או מבחנים תפקודיים. נוירונים grown בשיטה זו בדרך כלל לשרוד במשך כמה שבועות ולפתח סוכות נרחבות, קשרים סינפטיים, ואת מאפייני רשת.

בשיטת &quot;כריך&quot; זו תרבות תא העצב העיקרית, נוירונים בהיפוקמפוס (איור 3) לגדול על מצע של תאי גליה (איור 1) מופרדות חרוזי פרפין (איור 2). הדבר מבטיח כי נוירונים לגדול באופן סלקטיבי על coverslips זכוכית עם זיהום תא גלייה מינימאלי אבל ...

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

Low-Density Primary Hippocampal Neuron Culture

מאמר זה מתאר את הפרוטוקול עבור culturing נוירונים בהיפוקמפוס העיקריים בצפיפות נמוכה גדלו על coverslips הזכוכית הפוך מעל בשכבת גליה. שכבות הנוירון גליה מופרדות חרוזי פראפין. הנוירונים גדלו על ידי שיטה זו מתאימים הדמיה אופטית מבחנים תפקודיים ברזולוציה גבוהה.

בהיפוקמפוס ראשי בצפיפות נמוכה תרבות Neuron

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

low-density-primary-hippocampal-neuron-culture

Research

JoVE Journal

Neuroscience

20.5K Views.  University of Manitoba.  מאמר זה מתאר את הפרוטוקול עבור culturing נוירונים בהיפוקמפוס העיקריים בצפיפות נמוכה גדלו על coverslips הזכוכית הפוך מעל בשכבת גליה. שכבות הנוירון גליה מופרדות חרוזי פראפין. הנוירונים גדלו על ידי שיטה זו מתאימים הדמיה אופטית מבחנים תפקודיים ברזולו?...

Video: Low-Density Primary Hippocampal Neuron Culture

Nucleofection and Primary Culture of Embryonic Mouse Hippocampal and Cortical Neurons

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

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

Nucleofection ותרבות ראשונית של נוירונים בהיפוקמפוס עכבר עובריים קליפתיים

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

Primary Culture of Hippocampal Neurons from P0 Newborn Rats

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

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

תרבות ראשונית של נוירונים בהיפוקמפוס של חולדות P0 יילוד

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

Biology

Isolation and Culture of Hippocampal Neurons from Prenatal Mice

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

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

בידוד והתרבות של נוירונים בהיפוקמפוס מעכברים טרום לידתי

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

Sex Stratified Neuronal Cultures to Study Ischemic Cell Death Pathways

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

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

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

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

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

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

המהיר Genotyping של בעלי חיים ואחרי הקמת תרבויות עיקריות של נוירונים במוח

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

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

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

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

שיטה פשוטה עבור צפיפות Ultra-Low, לטווח ארוך ראשית בהיפוקמפוס Neuron תרבות

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

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

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

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

הדמיה סופר-רזולוציה ללמוד התאמה ית-מקומית של חלבונים וסמנים סינפטיים בנוירונים ראשוניים

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

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

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

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

תרבית ראשונית קלה וניתנת לשחזור בצפיפות נמוכה באמצעות מלאי קפוא של נוירונים עובריים בהיפוקמפוס

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

A Technique to Culture Mouse Hippocampal Neurons

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

טכניקה לתרבית תאי עצב בהיפוקמפוס עכבר

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

JoVE Encyclopedia of Experiments

Neuronal Culture Techniques

Primary Neuronal Culture

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

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

יצירת תרבית נוירונים ראשונית בצפיפות נמוכה מתאי עצב עובריים קפואים

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

	Coat a 96-well ...