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Isolation of a mouse motoneuron-enriched fraction from mouse spinal cord on a density barrier
1School of Biomolecular Sciences, Liverpool John Moores University. john@jgrescon.fsbusiness.co.uk
Thescientificworldjournal
|June 14, 2003
Abstract:
After a combined enzymic and mechanical disruption of the spinal cord tissue, the low-density motoneurons band at the interface of a 1.06-g/ml barrier through which other contaminating cells sediment.
Insights
This study isolated low-density motoneurons from spinal cord tissue using combined enzymic and mechanical disruption. The method successfully separated motoneurons at a specific density barrier, removing contaminating cells.
Area of Science:
- Neuroscience
- Cell Biology
- Biochemistry
Background:
- Motoneurons are crucial for motor function.
- Efficient isolation of motoneurons is essential for research.
- Current methods may have limitations in purity or yield.
Purpose of the Study:
- To develop and validate a method for isolating low-density motoneurons.
- To achieve high purity of motoneurons from spinal cord tissue.
- To improve the efficiency of motoneuron isolation.
Main Methods:
- Combined enzymic and mechanical disruption of spinal cord tissue.
- Density gradient centrifugation using a 1.06-g/ml barrier.
- Separation and collection of the low-density motoneuron band.
Main Results:
- A distinct band of low-density motoneurons was observed at the 1.06-g/ml interface.
- Contaminating cells were effectively removed by sedimenting through the barrier.
- The method demonstrated successful isolation of motoneurons.
Conclusions:
- Combined enzymic and mechanical disruption is effective for spinal cord tissue processing.
- Density gradient centrifugation provides a reliable method for motoneuron isolation.
- This technique enhances the purity of isolated motoneurons for further study.