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An Engulfment Assay: A Protocol to Assess Interactions Between CNS Phagocytes and Neurons
Published on: June 8, 2014
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Microglia C-lectin/selectin' neurons to eat
Yike Jiang1, Mari L Shinohara2
1Department of Immunology, Duke University School of Medicine, Durham, NC, USA; Division of Pediatric Rheumatology, Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA.
Immunity
|February 15, 2023
Summary
Gaucher disease involves beta-glucosylceramide buildup. This study shows Mincle-activated microglia phagocytose neurons, causing neuroinflammation and neurological symptoms.
Area of Science:
- Neuroscience
- Immunology
- Metabolic Disorders
Background:
- Beta-glucosylceramide (β-GlcCer) accumulation is a hallmark of Gaucher disease.
- The mechanisms linking β-GlcCer to neuroinflammation and neuronopathy remain unclear.
- Beta-glucosylceramide is a known ligand for the Mincle receptor.
Purpose of the Study:
- To elucidate the role of β-GlcCer in Gaucher disease-associated neuroinflammation.
- To investigate the involvement of the Mincle receptor in the pathogenesis of neurodegeneration.
Main Methods:
- Utilized mouse models of Gaucher disease.
- Investigated microglial activation pathways.
- Assessed neuronal phagocytosis and neurological outcomes.
Main Results:
- Mincle receptor activation on microglia was observed in response to β-GlcCer.
- Mincle-dependent microglial activation led to the phagocytosis of neurons.
- This process correlated with the development of neurological symptoms.
Conclusions:
- Mincle-mediated microglial activation is a key driver of neuroinflammation and neuron loss in Gaucher disease.
- Targeting the Mincle pathway may offer therapeutic strategies for Gaucher disease.
- Understanding β-GlcCer's role in Mincle activation is crucial for neuroprotection.
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