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Glial Cells

Glial Cells

Nervous Tissue: Glial Cells

Nervous Tissue: Glial Cells

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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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: Jun 10, 2026

Rapid and Refined CD11b Magnetic Isolation of Primary Microglia with Enhanced Purity and Versatility

Rapid and Refined CD11b Magnetic Isolation of Primary Microglia with Enhanced Purity and Versatility

Published on: April 13, 2017

Microglia dynamics and function in the CNS.

Christopher N Parkhurst¹, Wen-Biao Gan

¹Molecular Neurobiology Program, Skirball Institute, Department of Physiology and Neuroscience, New York University School of Medicine, 540 First Avenue, New York, NY 10016, USA.

Current Opinion in Neurobiology

|August 14, 2010

Summary

This summary is machine-generated.

Microglia, the brain's immune cells, are highly dynamic, constantly moving their processes. This mobility is crucial for responding to brain injury and disease.

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Isolation of Cortical Microglia with Preserved Immunophenotype and Functionality From Murine Neonates

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Published on: January 30, 2014

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Last Updated: Jun 10, 2026

Rapid and Refined CD11b Magnetic Isolation of Primary Microglia with Enhanced Purity and Versatility

Rapid and Refined CD11b Magnetic Isolation of Primary Microglia with Enhanced Purity and Versatility

Published on: April 13, 2017

Isolation of Cortical Microglia with Preserved Immunophenotype and Functionality From Murine Neonates

Isolation of Cortical Microglia with Preserved Immunophenotype and Functionality From Murine Neonates

Published on: January 30, 2014

Area of Science:

Neuroscience
Immunology
Cell Biology

Background:

Microglial cells are the primary immune cells residing in the central nervous system.
These cells exhibit remarkable dynamic behavior, essential for brain health and disease.
Their functions are influenced by various signaling pathways, including purinergic and Toll-like receptors.

Purpose of the Study:

To explore the dynamic nature of microglial cells.
To understand the mechanisms driving microglial cell movement and activation.
To elucidate the functional significance of microglial dynamics in the brain.

Main Methods:

Investigated microglial cell behavior in both normal and pathological brain conditions.
Examined the role of purinergic and Toll-like receptor signaling in microglial activation.
Utilized advanced imaging techniques to observe microglial process dynamics.

Main Results:

Demonstrated constitutive mobility of resting microglial processes.
Observed rapid, directional migration of microglia towards sites of tissue damage.
Identified key signaling pathways that convert microglia to a chronically activated state.

Conclusions:

Microglial cell dynamics are a fundamental characteristic of these immune cells.
Understanding microglial mobility and activation mechanisms is vital for neurological research.
Recent findings illuminate the functional importance of microglia in the central nervous system.