Researchers at Scripps Research have made a significant discovery in understanding Alzheimer’s disease pathology, identifying a critical molecular switch that perpetuates chronic brain inflammation. The STING protein, which undergoes specific chemical modifications in Alzheimer’s patients, becomes trapped in a state that continuously activates brain immune cells called microglia. This persistent activation leads to progressive damage of synaptic connections essential for memory and cognitive function. The findings represent a paradigm shift in Alzheimer’s research, suggesting that therapeutic interventions targeting STING protein modifications could offer new treatment strategies beyond traditional amyloid-focused approaches. By understanding how this molecular switch maintains destructive inflammation throughout disease progression, scientists may develop more effective interventions to slow neurodegeneration and preserve cognitive function in Alzheimer’s patients.
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