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Updated: May 10, 2026
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Isolation of Mouse Primary Microglia by Magnetic-Activated Cell Sorting in Animal Models of Demyelination
Published on: April 5, 2022
Isolation of murine postnatal brain microglia for phenotypic characterization using magnetic cell separation
Ashley S Harms1, Malú G Tansey
1Emory University School of Medicine, Atlanta, GA, USA.
Methods in Molecular Biology (Clifton, N.J.)
|July 2, 2013
Summary
This study presents a rapid method for isolating pure brain microglia using magnetic bead technology. This technique significantly reduces processing time, enabling timely cellular and molecular analyses.
Area of Science:
- Neuroscience
- Immunology
- Cell Biology
Background:
- Microglia isolation is crucial for studying neuroinflammation and brain disorders.
- Conventional methods for microglia isolation are time-consuming, delaying downstream analyses.
- Rapid and efficient isolation protocols are needed for timely research.
Purpose of the Study:
- To develop and validate a fast protocol for isolating pure primary microglia from mouse brains.
- To enable prompt in vitro characterization of microglia for molecular and cellular analyses.
Main Methods:
- Utilized MACS neural dissociation kit and OctoMACS CD11b magnetic bead isolation.
- Positively selected CD11b+ microglia, a pan-microglial marker.
- Isolated microglia from C57Bl/6 mouse brains.
Main Results:
- Achieved high purity (>95%) and yield (~500,000 cells per pup) of viable microglia.
- Isolation and characterization possible within hours or days of brain harvesting.
- Enabled next-day analysis of morphology, cellular markers, and gene expression.
Conclusions:
- The described protocol significantly shortens the microglia isolation timeline compared to conventional methods.
- This rapid isolation method facilitates timely in vitro studies of microglia.
- The protocol provides a pure and viable microglial population for diverse research applications.
