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Related Experiment Video

Updated: May 9, 2026

In Vivo Two-Photon Microscopy of Single Nerve Endings in Skin
07:31

In Vivo Two-Photon Microscopy of Single Nerve Endings in Skin

Published on: August 24, 2014

Local gene expression in nerve endings.

Marianna Crispino1, Jong Tai Chun, Carolina Cefaliello

  • 1Department of Biology, University of Naples Federico II, Naples, Italy.

Developmental Neurobiology
|July 16, 2013
PubMed
Summary
This summary is machine-generated.

Neurons can synthesize proteins locally at distant sites, overcoming challenges in gene expression. This local protein synthesis, potentially supported by glial cells, is crucial for neuronal function.

Keywords:
glia-neuron unitgrowth conesmitochondrianerve endingspresynaptic protein synthesis

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Cell Biology

Background:

  • The neuron doctrine established neuronal connectivity but raised questions about gene expression reach.
  • The central dogma of molecular biology outlines genetic information flow.
  • Neurons face challenges in extending gene expression effects to remote cellular locations.

Purpose of the Study:

  • To review evidence for local protein synthesis in axon terminals.
  • To examine the regulation of local protein synthesis in neurons.
  • To explore the role of glia-neuron interactions in supporting local protein synthesis.

Main Methods:

  • Review of existing scientific literature and evidence.
  • Analysis of experimental data from various model systems.
  • Examination of molecular mechanisms regulating local protein synthesis.

Main Results:

  • Evidence supports a local protein synthesis system in neuronal dendrites, axons, and presynaptic terminals.
  • Local protein synthesis can be sustained by RNA supplied from surrounding glial cells.
  • Regulation of local protein synthesis in axon terminals is complex and varies across model systems.

Conclusions:

  • Local protein synthesis is a vital mechanism for neurons to achieve specific protein distribution.
  • Intercellular trafficking of molecules, particularly RNAs from glia, plays a role in neuronal local protein synthesis.
  • Further research is needed to fully understand the regulation and implications of local protein synthesis in neuronal function.