Isolation of enriched glial populations from post-mortem human CNS material by immuno-laser capture microdissection
R Waller1, M N Woodroofe, S Francese
1Sheffield Institute for Translational Neuroscience, The University of Sheffield, 385A Glossop Road, Sheffield, UK.
Journal of Neuroscience Methods
|May 22, 2012
Summary
This study introduces rapid immunohistochemistry with laser capture microdissection (immuno-LCM) to isolate specific cell types from post-mortem brain tissue. This method facilitates transcriptomic analysis of glial cells for neurodegenerative disease research.
Area of Science:
- Neuroscience
- Molecular Biology
- Genetics
Background:
- Studying individual cell populations in post-mortem central nervous system (CNS) tissue is crucial for understanding neurodegenerative diseases.
- Current methods face challenges with sample availability, preparation, and isolating specific cell types.
Purpose of the Study:
- To develop and validate a method for isolating specific cell populations from post-mortem CNS tissue for transcriptomic analysis.
- To enable the investigation of RNA profiles of individual cell types, particularly glial cells, in neurodegenerative disorders.
Main Methods:
- Rapid immunohistochemistry combined with laser capture microdissection (immuno-LCM) was employed.
- Methods for isolating enriched glial populations (astrocytes, oligodendrocytes, microglia) were detailed.
- Polymerase chain reaction (PCR) was used to confirm cell enrichment.
Main Results:
- Successful isolation of specific glial populations from post-mortem CNS tissue using immuno-LCM.
- Confirmation of glial cell enrichment via PCR.
- Quantification of cell numbers required to obtain sufficient RNA (50ng) for microarray analysis.
Conclusions:
- Immuno-LCM is an effective technique for isolating specific cell populations from post-mortem CNS tissue.
- This method supports transcriptomic analysis of individual cell types to identify disease-specific gene and pathway alterations in neurodegenerative disorders.
