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Related Concept Videos

Nervous Tissue: Glial Cells01:31

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Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
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The Peripheral Nervous System (PNS) is a crucial component of the body's neural network, extending beyond the central nervous system (CNS) to bridge the gap between the CNS and the external environment. It encompasses nerves, ganglia, and sensory receptors.
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In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
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Related Experiment Video

Updated: Apr 15, 2026

Isolation of Enteric Glial Cells from the Submucosa and Lamina Propria of the Adult Mouse
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Perineurial glia.

Sarah Kucenas1

  • 1Department of Biology, University of Virginia, Charlottesville, Virginia 22904.

Cold Spring Harbor Perspectives in Biology
|March 31, 2015
PubMed
Summary
This summary is machine-generated.

The perineurium, a peripheral nerve component, was previously thought to be solely structural. New research reveals its crucial role in nerve development and regeneration.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Glial Cell Biology

Background:

  • Peripheral nerve ultrastructure is known, but component origins and functions remain unclear.
  • The perineurium, part of the blood-nerve barrier, was believed to be mesoderm-derived and purely structural.
  • Its role in nerve development, maintenance, and regeneration was largely unstudied.

Purpose of the Study:

  • To investigate the developmental origins of the perineurium.
  • To elucidate the functional roles of the perineurium beyond its barrier function.
  • To re-evaluate the perineurium's contribution to peripheral nerve development and regeneration.

Main Methods:

  • Utilized zebrafish as a model organism for in vivo studies.
  • Employed time-lapse imaging to observe dynamic developmental processes.
  • Applied genetic manipulation and laser axotomy to probe cellular functions and nerve injury responses.

Main Results:

  • Identified novel developmental origins for the perineurium.
  • Demonstrated previously unrecognized roles for the perineurium in nerve development.
  • Provided evidence for the perineurium's influence on nerve maintenance and regeneration.

Conclusions:

  • The perineurium is a more dynamic and functionally significant glial component than previously understood.
  • Rethinking the perineurium's origins and roles is essential for understanding nervous system development.
  • This research opens new avenues for studying peripheral nerve biology and therapeutic strategies.