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Targeting amyloid-β pathology by chimeric antigen receptor astrocyte (CAR-A) therapy

2 months 1 week ago
Alzheimer's disease (AD) is the leading cause of dementia and is characterized by progressive amyloid accumulation followed by tau-mediated neurodegeneration. Despite advances in anti-amyloid immunotherapies, important limitations remain, highlighting the need for new therapeutic strategies. Here, we introduce anti-amyloid chimeric antigen receptors expressed in astrocytes (CAR-A) and validate their function in vitro. We show that two CAR-A designs reduce amyloid and associated pathology after...
Yun Chen

MS4A4A and MS4A6A: New targets to enhance microglia protective function in Alzheimer's disease

2 months 1 week ago
MS4A4A and MS4A6A are microglia-expressed genes linked to Alzheimer's disease risk. In this issue of Neuron, Rosner et al.¹ show that these proteins cooperatively restrain TREM2 signaling, dampening protective microglial responses and highlighting MS4A inhibition as a potential strategy to rejuvenate the brain's innate immune system in Alzheimer's disease.
David V Hansen

Genetically encoded fluorescent reporters to visualize α-synuclein pathology in live brain

2 months 1 week ago
Lewy bodies, a pathological hallmark of Parkinson's disease, are α-synuclein-enriched cytoplasmic inclusions that drive progressive neurodegeneration. A long-standing yet unmet goal has been the visualization of α-synuclein (α-Syn) inclusions in live brain and measurements of their pathological effects on individual neurons. Here, we developed genetically encoded reporters and knock-in mouse lines to achieve this goal. The reporters exhibited a 5-fold increase in fluorescence upon incorporation...
Li Zhang