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Rapid and Specific Immunomagnetic Isolation of Mouse Primary Oligodendrocytes
Published on: May 21, 2018
Immunostaining for oligodendrocyte-specific galactosphingolipids in fixed brain sections using the
Yutaka Matsubayashi1, Lena Iwai, Tomohisa Toda
1Department of Molecular and Systems Neurobiology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, Japan.
Journal of Neuroscience Methods
|December 23, 2008
Summary
A new method uses digitonin detergent to visualize galactocerebroside (GalC) and sulfatide (SUL) in brain tissue. This technique preserves immunoreactivity, enabling detailed study of these lipids in oligodendrocytes and myelin.
Area of Science:
- Neuroscience
- Cell Biology
- Biochemistry
Background:
- Galactocerebroside (GalC) and sulfatide (SUL) are crucial galactosphingolipids in oligodendrocytes (OLs).
- Previous methods for visualizing GalC/SUL in tissue sections were limited due to detergent-induced degradation of immunoreactivity.
Purpose of the Study:
- To develop a novel method for effective visualization of endogenous GalC/SUL in OLs and myelin within intact brain sections.
- To overcome the limitations of existing techniques that degrade GalC/SUL immunoreactivity.
Main Methods:
- Utilized digitonin, a cholesterol-specific detergent, for treating brain sections instead of Triton X-100 or methanol.
- Optimized digitonin concentrations using confocal microscopy.
- Applied the method for 3D visualization of GalC/SUL-expressing OLs and double immunostaining.
Main Results:
- Digitonin treatment enabled efficient antibody penetration without compromising GalC/SUL immunoreactivity.
- The method allowed for high-resolution, three-dimensional visualization of OL morphology and GalC/SUL expression.
- Successful double immunostaining with intracellular antigens was achieved.
Conclusions:
- The digitonin-based method provides a robust approach for visualizing GalC/SUL in brain sections.
- This technique facilitates detailed examination of GalC/SUL expression in both physiological and pathological contexts.
- The method is valuable for studying OL development, function, and diseases affecting myelin.
