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Method Article

Astrocyte Isolation: A Method to Obtain Pure Preparation of Mouse Cortical Astrocytes

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April 30th, 2023

In This Article

Abstract

Source: Schildge, S. et al. Isolation and Culture of Mouse Cortical Astrocytes. J. Vis. Exp. (2013)

In this video, we describe the method to obtain a pure preparation of astrocytes from newly born mice.

Protocol

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

1. Isolation and Plating of Mixed Cortical Cells

Mixed cortical cell isolation for astrocyte cultures can be performed using P1 to P4 mouse pups. In order to achieve proper astrocyte density it is necessary to use 4 mouse pup cortices per T75 tissue culture flask. Therefore, volumes in the following protocol are calculated for a cell preparation using 4 mouse pups.

  1. Before starting the dissection procedure, prewarm 30 mL of astrocyte culture m....

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Results

Brain injury assessment; series of rodent brain images; post-trauma analysis; histological study.
Figure 1. Dissection of postnatal (P3) mouse cortex. A) Whole brain. B) Brain after removal of olfactory bulbs and cerebellum. C) Isolation of cortices by peeling off the plate-like structure of the cortex from the brain. D, D') Cortex from ventral and dorsal.......

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Disclosures

No conflicts of interest declared.

Materials

List of materials used in this article
NameCompanyCatalog NumberComments
<strong>Astrocyte culture media</strong>
DMEM high glucose&nbsp;Life Technologies&nbsp;31966-021
FBS heat-inactivated&nbsp;Life Technologies&nbsp;10082-147&nbsp;Final Concentration: 10%
Penicillin-Streptomycin&nbsp;Life Technologies&nbsp;15140-122&nbsp;Final Concentration: 1%
<strong>Solution for brain tissue digestion</strong>
HBSS&nbsp;Life Technologies&nbsp;14170-088
2.5% Trypsin&nbsp;Life Technologies&nbsp;15090-046&nbsp;Final Concentration: 0.25%
<strong>Other</strong>
70% (vol/vol) ethanol&nbsp;Roth&nbsp;9065.2
Poly-D-Lysine&nbsp;Millipor A-003&nbsp;A-003-E
Water&nbsp;PAA&nbsp;S15-012&nbsp;Cell culture grade
PBS&nbsp;PAA&nbsp;H15-002&nbsp;Cell culture grade
0.05% Trypsin-EDTA&nbsp;Life Technologies&nbsp;25300-062
0.45 &micro;m Sterile filter&nbsp;Sartorius&nbsp;16555
3.5 cm petri dish&nbsp;BD Falcon&nbsp;353001
15 ml Falcon tube&nbsp;BD Falcon&nbsp;352096
50 ml Falcon tube&nbsp;BD Falcon&nbsp;352070
75 cm2 Tissue culture flask&nbsp;BD Falcon&nbsp;353136
Forceps fine&nbsp;Dumont&nbsp;2-1032; 2-1033&nbsp;#3c; #5
Forceps flat tip&nbsp;KLS Martin&nbsp;12-120-11
13 cm surgical scissors&nbsp;Aesculap&nbsp;BC-140-R
Stereomicroscope&nbsp;Leica&nbsp;MZ7.5
Stereomicroscope + Camera&nbsp;Leica&nbsp;MZ16F; DFC320
Microscope + Camera&nbsp;Zeiss; Canon&nbsp;Primo Vert; PowerShot A650 IS
Centrifuge&nbsp;Eppendorf&nbsp;5805000.017&nbsp;Centrifuge5804R
Orbital Shaker&nbsp;Thermo Scientific&nbsp;SHKE 4450-1CE&nbsp;MaxQ 4450
Water bath&nbsp;Julabo&nbsp;SW20; 37 &deg;C

Tags

Tissue DissectionTrypsin DigestionCell SeparationPoly-lysine CoatingMicroglia RemovalOligodendrocyte Precursor CellsImmunostaining PurityCell Culture Passaging