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Location, Dissection, and Analysis of the Murine Stellate Ganglion
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Astrogliosis.

Michael V Sofroniew1

  • 1Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, California 90095.

Cold Spring Harbor Perspectives in Biology
|November 9, 2014
PubMed
Summary
This summary is machine-generated.

Astrogliosis, a response to central nervous system (CNS) damage, is a complex spectrum of astrocyte changes. Understanding this context-specific process is key to deciphering CNS disorders and potential astrocytopathies.

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Area of Science:

  • Neuroscience
  • Cellular Biology
  • Pathology

Background:

  • Astrocytes perform vital functions in the healthy central nervous system (CNS).
  • Astrocytes respond to CNS damage and disease via astrogliosis, a process historically understudied.
  • Recent research reframes astrogliosis as a dynamic, context-specific response.

Purpose of the Study:

  • To define astrogliosis as a heterogeneous spectrum of astrocyte changes.
  • To explore the context-specific nature of astrogliosis driven by signaling events.
  • To present a framework for understanding normal and dysfunctional astrogliosis in CNS disorders.

Main Methods:

  • Review of recent scientific evidence and literature.
  • Analysis of signaling events determining astrocyte responses to CNS insults.
  • Conceptual framework development for astrogliosis and astrocytopathies.

Main Results:

  • Astrogliosis is a spectrum of heterogeneous astrocyte changes, not a uniform response.
  • The nature and severity of CNS insults dictate context-specific astrogliosis.
  • Astrogliosis has both beneficial and potentially harmful effects.
  • Dysfunctional astrogliosis can contribute to or cause CNS disorders (astrocytopathies).

Conclusions:

  • Astrogliosis is a complex, context-dependent phenomenon with diverse outcomes.
  • A new conceptual framework aids in understanding astrogliosis roles in CNS health and disease.
  • Identification of astrocytopathies highlights the importance of astrocyte function in neurological disorders.