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Neuroinflammation: The Abused Concept.

Elena Galea1,2, Manuel B Graeber3

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Summary
This summary is machine-generated.

The term "neuroinflammation" is misused, causing confusion in central nervous system (CNS) research and failed clinical trials. This article proposes redefining CNS immunity and introducing "gliopathies" to improve scientific clarity and progress.

Keywords:
inflammationmicroglianeuroinflammatory disorders

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Area of Science:

  • Neuroscience
  • Immunology
  • Cell Biology

Background:

  • The term "neuroinflammation" has evolved from its original meaning of classical central nervous system (CNS) inflammation to primarily denote microglia activation.
  • This terminological shift has led to significant confusion and is detrimental to scientific progress and patient care, evidenced by numerous failed clinical trials of "anti-inflammatory" drugs in CNS diseases.

Purpose of the Study:

  • To review the historical origins and evolution of the term "neuroinflammation."
  • To discuss the unique defense and repair mechanisms within the CNS.
  • To propose a redefinition of CNS immunity and introduce the concept of "gliopathies" to address the ambiguity surrounding "neuroinflammation."

Main Methods:

  • Historical literature review on the term "neuroinflammation."
  • Analysis of CNS-specific immune responses and tissue repair strategies.
  • Conceptual framework development for CNS immunity and gliopathies.

Main Results:

  • The term "neuroinflammation" has been inconsistently applied, leading to a divergence from its original meaning and causing widespread confusion.
  • Current understanding and application of "neuroinflammation" hinder scientific clarity and effective therapeutic development for CNS disorders.
  • The proposed framework of CNS immunity and gliopathies offers a more precise terminology for understanding and researching CNS conditions.

Conclusions:

  • The ambiguous and evolving use of "neuroinflammation" impedes scientific progress and necessitates a re-evaluation of CNS terminology.
  • Redefining CNS immunity and adopting the concept of "gliopathies" will enhance clarity in research and clinical applications.
  • Adopting precise terminology is crucial for advancing scientific understanding and improving patient outcomes in central nervous system diseases.