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Electrolyte induced vesiculation of MA782 mice mammary adenocarcinoma ascites cells
FEBS Letters
|April 9, 1991
Abstract:
MA782 ascites cells were found to vesiculate when incubated in electrolyte solutions and release giant plasma membrane vesicles with diameters ranging from 5 microns to 15 microns. The vesicles, generated from the plasma membrane and free of cellular organelles, as visualized by microscopy and marker-enzyme analysis, could be proposed as a useful model membrane system.
Insights
MA782 ascites cells release giant plasma membrane vesicles when incubated in electrolyte solutions. These cell-free vesicles, ranging from 5-15 microns, offer a useful model membrane system for research.
Area of Science:
- Cell Biology
- Biophysics
- Membrane Science
Background:
- Cellular vesiculation is a process where cells release membrane-bound vesicles.
- Plasma membrane-derived vesicles can serve as valuable tools in biological research.
Purpose of the Study:
- To investigate the vesiculation of MA782 ascites cells in electrolyte solutions.
- To characterize the properties of the released vesicles.
- To evaluate their potential as a model membrane system.
Main Methods:
- Incubation of MA782 ascites cells in electrolyte solutions.
- Microscopic analysis to determine vesicle size and morphology.
- Marker-enzyme analysis to confirm plasma membrane origin and absence of organelles.
Main Results:
- MA782 ascites cells successfully vesiculate upon incubation in electrolyte solutions.
- Giant plasma membrane vesicles (GPMVs) with diameters of 5-15 microns were released.
- Vesicles were confirmed to originate from the plasma membrane and were devoid of cellular organelles.
Conclusions:
- The vesiculation of MA782 ascites cells provides a method for generating cell-free model membranes.
- The characterized GPMVs are suitable for use as a model membrane system in various biological and biophysical studies.