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Updated: Feb 16, 2026

Fabrication of Amyloid-β-Secreting Alginate Microbeads for Use in Modelling Alzheimer's Disease
Published on: July 6, 2019
TREM2 enables amyloid β clearance by microglia.
1Neuroscience Laboratory, CHU de Québec Research Center, Department of Molecular Medicine, Faculty of Medicine, Laval University, 2705 Laurier Blvd., Québec, Canada.
Deficiency in triggering receptor expressed on myeloid cells 2 (TREM2) worsens Alzheimer's disease pathology. This receptor is crucial for microglia's natural clearance of toxic amyloid beta protein.
Area of Science:
- Neuroscience
- Immunology
- Cell Biology
Background:
- Alzheimer's disease is characterized by amyloid beta (Aβ) plaques and neuronal loss.
- Microglia, the brain's immune cells, are involved in clearing Aβ.
- Triggering receptor expressed on myeloid cells 2 (TREM2) is a microglial receptor implicated in innate immunity.
Purpose of the Study:
- To investigate the role of TREM2 in Alzheimer's disease pathogenesis.
- To determine the effect of TREM2 deficiency on Aβ accumulation and neuronal damage.
Main Methods:
- Utilized a mouse model of Alzheimer's disease.
- Examined the impact of TREM2 deficiency on amyloid pathology.
- Assessed neuronal loss in the context of TREM2 function.
Main Results:
- TREM2 deficiency significantly augmented amyloid beta accumulation in the brain.
- Loss of TREM2 function led to increased neuronal loss.
- TREM2 plays a critical role in the microglial clearance of amyloid beta.
Conclusions:
- TREM2 is essential for mitigating Alzheimer's disease pathology.
- Targeting TREM2 may offer therapeutic strategies for Alzheimer's disease.
- TREM2's function in microglial innate immunity is vital for neuroprotection.
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