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Isolation of Lipid Droplets from Cells by Density Gradient Centrifugation
Dawn L Brasaemle1, Nathan E Wolins2
1Rutgers, The State University of New Jersey, New Brunswick, New Jersey.
Current Protocols in Cell Biology
|September 2, 2016
Summary
This study details methods for isolating lipid droplets, which are essential cellular organelles, from mammalian cells. These lipid-rich structures are crucial for cellular lipid metabolism and storage.
Area of Science:
- Cell Biology
- Biochemistry
- Molecular Biology
Background:
- Lipid droplets are ubiquitous cellular organelles composed of neutral lipids enclosed by a phospholipid monolayer.
- These organelles play critical roles in cellular lipid metabolism, storage, and signaling.
- Understanding lipid droplet biogenesis and function requires efficient isolation methods.
Purpose of the Study:
- To provide a detailed protocol for the isolation of lipid droplets from mammalian cells.
- To enable researchers to study the composition and function of lipid droplets.
Main Methods:
- Isolation of lipid droplets using discontinuous density gradient centrifugation.
- Application to mammalian cell cultures.
Main Results:
- Successful isolation of intact lipid droplets from mammalian cells.
- The protocol allows for subsequent biochemical and molecular analysis of isolated droplets.
Conclusions:
- Discontinuous density gradient centrifugation is an effective method for isolating lipid droplets.
- This protocol facilitates further research into the biological roles of lipid droplets.
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