Related Experiment Video

Updated: Feb 24, 2026

Isolation of Cortical Microglia with Preserved Immunophenotype and Functionality From Murine Neonates
09:12

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

Published on: January 30, 2014

16.8K

The role of the immunoproteasome in interferon-γ-mediated microglial activation

Kasey E Moritz1, Nikki M McCormack1, Mahlet B Abera2

  • 1Neuroscience Program, Uniformed Services University of the Health Sciences, F. Edward Hébert School of Medicine, Bethesda, MD, USA.

Scientific Reports
|August 26, 2017
PubMed

Insights

Targeting the immunoproteasome in microglia may reduce neuroinflammation. Inhibiting this protein complex lessens pro-inflammatory cytokine expression and microglial activation, potentially benefiting neurodegenerative conditions and neurotrauma.

Area of Science:

  • Neuroscience
  • Immunology
  • Cell Biology

Background:

  • Microglia are key regulators of the central nervous system (CNS) microenvironment.
  • Microglial activation, a response to CNS injury, involves morphological changes and cytokine production.
  • The immunoproteasome's role in neuropathology is not fully understood, despite elevated levels in activated microglia.

Purpose of the Study:

  • To characterize the expression and assembly of the immunoproteasome in microglia.
  • To investigate the immunoproteasome's role in microglial activation.
  • To evaluate the therapeutic potential of targeting the immunoproteasome in CNS injury models.

Main Methods:

  • Gene expression analysis.
  • Native gel electrophoresis.
  • Interferon-gamma exposure of microglia.

Main Results:

  • Immunoproteasome expression and assembly were characterized in microglia.
  • Transcriptome analysis indicated immunoproteasome regulation of nitric oxide production and phagocytosis.
  • Immunoproteasome inhibition reduced pro-inflammatory cytokine expression and suppressed interferon-gamma-dependent microglial priming.

Conclusions:

  • The immunoproteasome plays a significant role in microglial activation.
  • Inhibiting the immunoproteasome attenuates key inflammatory pathways in microglia.
  • Targeting immunoproteasome function may offer a therapeutic strategy for neurodegenerative diseases and neurotrauma.

More Related Videos

Rapid and Refined CD11b Magnetic Isolation of Primary Microglia with Enhanced Purity and Versatility07:54

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

Published on: April 13, 2017

10.4K
Characterization and Isolation of Mouse Primary Microglia by Density Gradient Centrifugation10:21

Characterization and Isolation of Mouse Primary Microglia by Density Gradient Centrifugation

Published on: February 16, 2018

20.4K

Related Concept Videos

Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
2.2K
T Cell Types and Functions01:24

T Cell Types and Functions

When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
2.8K
Immune Surveillance by NK Cells and Phagocytes01:25

Immune Surveillance by NK Cells and Phagocytes

Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
9.0K