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Related Experiment Video

Updated: Apr 12, 2026

Investigation of Spatial Interaction Between Astrocytes and Neurons in Cleared Brains
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A versatile clearing agent for multi-modal brain imaging.

Irene Costantini1, Jean-Pierre Ghobril2, Antonino Paolo Di Giovanna1

  • 1European Laboratory for Non-linear Spectroscopy, University of Florence, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy.

Scientific Reports
|May 8, 2015
PubMed
Summary
This summary is machine-generated.

A new, versatile brain clearing agent (2,2'-thiodiethanol; TDE) enables high-throughput neuroanatomical exploration. This cost-efficient, water-soluble agent preserves fluorescence and is compatible with multiple imaging techniques for detailed neuronal mapping.

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Area of Science:

  • Neuroscience
  • Biotechnology
  • Optical Imaging

Background:

  • Mapping neuronal connections in the central nervous system requires high-throughput imaging of large volumes.
  • Existing methods for overcoming light scattering in tissues often improve specific imaging modalities, limiting multi-modal approaches.
  • A need exists for versatile clearing agents compatible with diverse imaging techniques for comprehensive neuroanatomical studies.

Purpose of the Study:

  • To introduce a versatile and cost-efficient brain clearing agent, 2,2 -thiodiethanol (TDE).
  • To demonstrate TDE's compatibility with various imaging modalities and applications, including immunostaining and multi-modal techniques.
  • To facilitate high-throughput, sub-cellular resolution imaging of large neural circuits.

Main Methods:

  • Development and characterization of 2,2 -thiodiethanol (TDE) as a brain clearing agent.
  • Application of TDE in fixed samples for serial two-photon tomography of a whole mouse hippocampus.
  • Integration of TDE with CLARITY for light sheet microscopy reconstruction of an entire mouse brain.
  • Utilizing TDE for imaging immunostained human dysplastic brain tissue in translational research.

Main Results:

  • TDE is cost-efficient, water-soluble, and low-viscous.
  • TDE effectively preserves fluorescence and is compatible with immunostaining.
  • TDE does not induce sub-cellular deformations.
  • Successful demonstration of TDE in diverse applications including whole-brain and human tissue imaging.

Conclusions:

  • 2,2 -thiodiethanol (TDE) is a versatile clearing agent for advanced neuroimaging.
  • TDE supports multi-modal optical techniques, enabling comprehensive neuroanatomical exploration.
  • This agent facilitates high-throughput imaging and translational research in neuroscience.