Name: Isolatie en opname van patch-clamp met hele cellen van hippocampale microglia van volwassen muizen (Video) | JoVE Journal
Uploaded: 2024-09-27T14:47:00.000+00:00
Duration: 8 min 34 s
Description: Leer de isolatie en patch-clamp opname van hippocampale microglia uit volwassen muizen. Deze methode onderzoekt ionkanaalactiviteit en fysiologische functies van microglia in hun natuurlijke omgeving.

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<meta charset="utf8"></head><body>Elektrofysiologische registratie van hippocampale microglia van volwassen muizen

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<table><tbody><tr><td>100 mm Petri dish</td><td>Corning</td><td>353003</td><td></td></tr><tr><td>15 mL Falcon tubes</td><td>BD</td><td>352096</td><td></td></tr><tr><td>24-well plates</td><td>BD</td><td>353047</td><td></td></tr><tr><td>35 mm Petri dish</td><td>Corning</td><td>353001</td><td>-</td></tr><tr><td>50 mL Falcon tubes</td><td>BD</td><td>352070</td><td></td></tr><tr><td>70 &mu;m cell screening</td><td>Miltenyi</td><td>130-095-823</td><td>Om celklompjes te verwijderen voordat cellen worden gesorteerd</td></tr><tr><td>Adult Mouse Brain Dissociation Kit</td><td>Miltenyi</td><td>130- 107-677</td><td></td></tr><tr><td>Anti-CD11b Antibody</td><td>Bio-Rad</td><td>MCA74</td><td>Geiten-Anti-muis IgG ook beschikbaar. Voor het blokkeren van endogene immunoglobulinen.</td></tr><tr><td>Anti-Iba 1 Antibody</td><td>SYSY</td><td>234308</td><td>Geiten-Anti-guinea pig IgG) ook beschikbaar. Voor het blokkeren van endogene immunoglobulinen.</td></tr><tr><td>Axon Digidata 1440A</td><td>USA</td><td></td><td></td></tr><tr><td>Axon MultiClamp 700B Amplifier</td><td>USA</td><td></td><td></td></tr><tr><td>BSA Albumin Fraction V</td><td>BioFrox</td><td>4240GR500</td><td>Serum</td></tr><tr><td>C57BL/6 mice&nbsp;</td><td>Guangdong Medical Laboratory Animal Center</td><td></td><td></td></tr><tr><td>CD11 b/c MicroBeads</td><td>Miltenyi</td><td>130-105-634</td><td></td></tr><tr><td>Chloral hydrate</td><td>Absin</td><td>abs47051394</td><td>Widspread gebruikt als anesthesie bij muizen</td></tr><tr><td>Clampfit 10.6</td><td>USA</td><td></td><td></td></tr><tr><td>Confocal Microscope</td><td>Zeiss</td><td>&nbsp;LSM 800</td><td></td></tr><tr><td>Culture medium</td><td>Fisher Scientific</td><td>C11995500BT</td><td>-</td></tr><tr><td>DAPI dye</td><td>Beyotime</td><td>C1002</td><td></td></tr><tr><td>Electrode puller</td><td>Narishige</td><td>PC-10</td><td></td></tr><tr><td>HBSS</td><td>Servicebio</td><td>G4203</td><td></td></tr><tr><td>Horizontal shaker</td><td>SCILOGEX</td><td>SLK-O3000-S</td><td></td></tr><tr><td>Image analysis software</td><td>Fiji</td><td></td><td></td></tr><tr><td>MACS Columns</td><td>Miltenyi</td><td>130-042-201</td><td></td></tr><tr><td>MACS Separators</td><td>Miltenyi</td><td>130-042-102</td><td></td></tr><tr><td>Paraformaldehyde</td><td>Fisher Scientific</td><td>T353-500</td><td>Gebruik verse 4% oplossing in 1X PBS, pH 7.2-7.4.&nbsp;</td></tr><tr><td>Poly-L-lysine</td><td>Beyotime</td><td>&nbsp;C0313</td><td>Coverslip coating</td></tr><tr><td>Triton X-100</td><td>Sigma</td><td>X100</td><td></td></tr></tbody></table>

isolatie en opname van patch-clamp met hele cellen van hippocampale microglia van volwassen muizen

Isolation and Whole-Cell Patch-Clamp Recording of Hippocampal Microglia from Adult Mice

Isolatie en opname van patch-clamp met hele cellen van hippocampale microglia van volwassen muizen

Microglia are resident immune cells in the brain that interact with neurons to maintain the homeostasis of the central nervous system (CNS). Studies show ...

isolation-whole-cell-patch-clamp-recording-hippocampal-microglia-from

Research

JoVE Journal

Biology

Biologie

De bereiding van acute hersenplakjes van hippocampi geïsoleerd, evenals de gelijktijdige elektrofysiologische opnames van astrocyten en neuronen...

Dubbele Elektrofysiologische Opnames van synaptisch-opgeroepen astrogliale en Neuronale responsen bij acute hippocampus Slices

The video demonstrates a technique for isolating microglia from the cortex of an adult mouse brain. First, the cortex undergoes segmentation and homogenization to remove neurons and other glial cells, preserving microglia. Following that, the cell suspension is exposed to anti-myelin magnetic microbeads and a magnetic field, effectively separating microglia and myeloid cells from myelin debris and cells containing myelin.

Isolation of Microglia from the Cortex of an Adult Mouse Brain

The video demonstrates a protocol to study synaptic interactions and neuronal responses in a transfected mouse hippocampal brain slice. It involves illuminating long-range sensory neurons to trigger action potentials and recording the resulting excitatory post-synaptic potentials in the recorded neuron using the whole-cell patch-clamp technique.

Photostimulation and Whole-Cell Patch Clamp Recordings of Neurons in Mouse Hippocampal Slices

This video demonstrates the recording of rhythmic neuronal network activity, also known as theta oscillations, in an isolated hippocampus. Electrodes are inserted into various layers and spatial positions to detect and analyze theta oscillations. This shows the unique neuronal compositions and the connectivity of the neuronal network across different layers of the hippocampus.

In Vitro Recording of Theta Oscillations in the Mouse Hippocampus

Een sleutel tot succesvolle onderzoek van microglia biologie is het behoud van microglia immunofunction ex vivo tijdens isolatie van CZS-weefsel. Isoleren microglia via roterende schudden resulteert in zeer zuivere en immunofunctional celculturen zoals beoordeeld door fluorescerende beeldvorming, immunocytochemie, en ELISA na microglia-activatie met de pro-inflammatoire stimuli lipopolysaccharide (LPS) en Pam 3 CSK 4 (Pam).

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Corticale netwerken worden gecontroleerd door een kleine, maar gevarieerde set van remmende interneuronen. Functioneel onderzoek van interneuronen vereist daarom gerichte opname en strenge identificatie. Hier beschreven is een gecombineerde aanpak met whole-cell opnames van enkele of synaptically gekoppelde paren van neuronen met intracellulaire etikettering, post-hoc-morfologische en immunocytochemische analyse.

Whole-cell patch-clamp opnamen van Morphologically- en neurochemisch-geïdentificeerde hippocampus Interneurons

Hier presenteren wij een protocol voor het opnemen van ritmische neuronale netwerk theta en gamma oscillaties vanuit een geïsoleerde hele hippocampale voorbereiding. We beschrijven de experimentele stappen van extractie van de hippocampus naar details van veld-, eenheids- en hele-cel patch-klemopnamen, evenals optogenetische stimulatie van het theta ritme.

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We bieden een protocol voor isolatie van Microglia uit verschillende ontleed gebieden van een volwassen muis hersen halfrond, gevolgd door semi-geautomatiseerde bibliotheek voorbereiding voor diepe eencellige RNA-sequencing van volledige lengte transcriptomes. Deze methode zal helpen om functionele heterogeniteit van Microglia in gezondheid en ziekte te verhelmaken.

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We presenteren een protocol om acute plakjes te bereiden van de dorsaal-intermediaire hippocampus van muizen. We vergelijken dit transversale preparaat met coronale snijden in termen van kwaliteit van opnames en behoud van morfologische kenmerken van opgenomen neuronen.

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In Vivo Chronische twee-foton beeldvorming van microglia in de hippocampus van de muis

We beschrijven een protocol voor het isoleren van microgliacellen uit de hypothalamus van de muis (of gelijkwaardige kleine hersenstructuren) met behulp van magnetisch geactiveerde celsortering (MACS), in een relatief korte tijd. De MACS-gesorteerde hypothalamische microglia kunnen worden gebruikt voor ex vivo-analyse en kunnen worden geplateerd om in vitro-assays uit te voeren.

Isolatie van hypothalamische microglia uit vers doorbloede volwassen muizenhersenen door magnetisch geactiveerde celsortering  

Leer de isolatie en patch-clamp opname van hippocampale microglia uit volwassen muizen. Deze methode onderzoekt ionkanaalactiviteit en fysiologische functies van microglia in hun natuurlijke omgeving.

Isolatie en opname van patch-clamp met hele cellen van hippocampale microglia van volwassen muizen

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