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Microglia as a Surrogate Biosensor to Determine Nanoparticle Neurotoxicity
08:37

Microglia as a Surrogate Biosensor to Determine Nanoparticle Neurotoxicity

Published on: October 25, 2016

Microglial response to viral challenges: every silver lining comes with a cloud

Deepak Kumar Kaushik1, Malvika Gupta, Anirban Basu

  • 1National Brain Research Centre, Manesar, Haryana-122050, India.

Frontiers in Bioscience (Landmark Edition)
|May 31, 2011
PubMed

Insights

Microglia, the brain's immune cells, detect viral infections within the Central Nervous System (CNS). They identify pathogens using Pattern Recognition Receptors (PRRs) and release cytokines to manage the infection.

Area of Science:

  • Neuroimmunology
  • Infectious Diseases

Background:

  • Microglia are the primary immune cells of the Central Nervous System (CNS).
  • The Blood Brain Barrier (BBB) protects the CNS but can be breached by pathogens.
  • Viral encephalitis is a common CNS infection with diverse causative agents.

Purpose of the Study:

  • To review viral infections of the brain.
  • To discuss microglia's role in detecting these infections.
  • To explore microglia's immune response strategies.

Main Methods:

  • Review of scientific literature on viral encephalitis and microglial responses.
  • Analysis of Pattern Recognition Receptors (PRRs) and Pathogen Associated Molecular Patterns (PAMPs).
  • Examination of cytokine signaling pathways (e.g., MCP1, IL-1beta, IFN, TNF-alpha).

Main Results:

  • Microglia utilize PRRs to recognize viral PAMPs.
  • Microglia initiate innate immune responses by releasing pro- and anti-inflammatory cytokines.
  • Various viruses, including JEV, WNV, HSV, and HIV, can cause CNS infections.

Conclusions:

  • Microglia play a crucial role in defending the CNS against viral pathogens.
  • Understanding microglial detection strategies is key to combating viral brain infections.
  • This review highlights the complex interplay between microglia and CNS viruses.

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