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Related Experiment Video

Updated: May 18, 2026

Preparation of Synaptoneurosomes from Mouse Cortex using a Discontinuous Percoll-Sucrose Density Gradient
08:30

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Published on: September 17, 2011

Preparing synaptoneurosomes from adult mouse forebrain.

Giovanni Lugli1, Neil R Smalheiser

  • 1Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, USA.

Methods in Molecular Biology (Clifton, N.J.)
|September 26, 2012
PubMed
Summary

This study details a lab protocol for preparing synaptoneurosomes, which are enriched in dendritic spines. This method provides a standardized approach for neuroscience research involving RNA and protein analysis.

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Cell Biology

Background:

  • Subcellular fractionation is crucial for neuroscience research, yielding isolated synaptic fractions.
  • Synaptosomes are commonly prepared via flotation, but synaptoneurosomes lack standardized protocols.
  • Synaptoneurosomes offer a fraction enriched in pinched-off dendritic spines.

Purpose of the Study:

  • To provide a detailed laboratory protocol for the preparation of synaptoneurosomes.
  • To establish a reproducible method for obtaining synaptoneurosomes suitable for molecular analysis.
  • To address the gap in standardized protocols for synaptoneurosome preparation.

Main Methods:

  • Filtration of brain tissue homogenate through a series of filters.
  • Isolation of a fraction enriched in pinched-off dendritic spines (synaptoneurosomes).
  • Protocol optimization for studying RNA and protein content.

Main Results:

  • A detailed, reproducible protocol for synaptoneurosome preparation is presented.
  • The prepared synaptoneurosomes are suitable for downstream analysis of RNA and proteins.
  • This method facilitates the study of synaptic components.

Conclusions:

  • The presented protocol offers a standardized method for synaptoneurosome isolation.
  • This advancement supports detailed molecular investigations of synaptic structures.
  • The protocol is valuable for neuroscience research focusing on synaptic function and composition.