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Detection and Quantification of Tunneling Nanotubes Using 3D Volume View Images
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Tunneling nanotubes: Reshaping connectivity.

Chiara Zurzolo1

  • 1Membrane Traffic and Pathogenesis, Institut Pasteur, UMR3691 CNRS, 75015, Paris, France.

Current Opinion in Cell Biology
|April 18, 2021
PubMed
Summary

Tunneling nanotubes (TNTs) are cell conduits for material transfer, crucial for communication. This review clarifies TNT structure-function and their role in disease and neural development.

Area of Science:

  • Cell Biology
  • Neuroscience
  • Pathology

Background:

  • Tunneling nanotubes (TNTs) are cell-to-cell channels facilitating material exchange.
  • Their discovery impacts understanding of physiological and pathological processes.
  • Varied descriptions and low-resolution imaging cause confusion regarding TNT structure-function.

Purpose of the Study:

  • To review the fundamental properties of TNTs.
  • To clarify the structure-function relationship of different TNT-like protrusions.
  • To explore TNTs' role in intercellular communication and disease.

Main Methods:

  • Literature review of existing studies on TNTs.
  • Analysis of imaging methods used to study TNTs.
  • Comparative analysis of TNT formation and synaptic spine development.

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Main Results:

  • TNTs enable direct diffusion of diverse cellular materials between distant cells.
  • TNTs are stimulated by disease, stress, and inflammation in adult tissues.
  • Evidence suggests TNTs in the brain may precede synaptic transmission in neural circuit orchestration.

Conclusions:

  • Clarifying TNT structure-function is essential for understanding cellular communication.
  • TNTs play a significant role in intercellular transport and disease processes.
  • TNTs are implicated in early neural development and circuit formation.