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Isolation of synaptic vesicles.

Branch Craige1, Gloria Salazar, Victor Faundez

  • 1Emory University, Atlanta, Georgia, USA.

Current Protocols in Cell Biology
|January 30, 2008
PubMed
Summary
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This study details methods for isolating synaptic vesicles, crucial for neural cell communication. These procedures yield highly purified synaptic vesicle fractions, aiding neuroscience research.

Area of Science:

  • Neuroscience
  • Cell Biology
  • Biochemistry

Background:

  • Synaptic vesicles are key secretory organelles in neural cells.
  • They possess unique physical properties: small size (~40 nm), spherical shape, and low density.
  • These characteristics are leveraged for their isolation.

Purpose of the Study:

  • To describe established and effective synaptic vesicle isolation protocols.
  • To provide researchers with reliable methods for obtaining purified synaptic vesicles.

Main Methods:

  • Utilizing isopycnic/velocity sedimentation for purification.
  • Employing size-based fractionation techniques.
  • Describing variations in tissue homogenization and vesicle fractionation.

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Main Results:

  • Two well-characterized synaptic vesicle isolation procedures are presented.
  • These methods achieve 20- to 30-fold enrichment of synaptic vesicles in membrane fractions.

Conclusions:

  • The described protocols enable efficient isolation of synaptic vesicles.
  • High purity fractions facilitate further study of synaptic vesicle function and composition.