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Modulation of neuronal α1-adrenergic receptor reduces tauopathy and neuroinflammation by inhibiting the STING/NF-κB/NLRP3 signaling pathway in Alzheimer’s disease mice
Reducing Alzheimer's-related brain cell damage and inflammation by targeting specific nerve cell receptors to block a key inflammation pathway in mice
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Abstract
Hippocampal α1-adrenergic receptor (ADRA1) expression was significantly elevated in 10-month-old 3xTg-AD mice.
- Neuronal knockdown of ADRA1 suppressed the activation of the STING/NF-κB/NLRP3 signaling pathway.
- This knockdown ameliorated and , restored neuronal structure and function, and improved cognitive deficits.
- Conversely, overexpression of ADRA1 in C57/BL6 mice led to increased tauopathy, neuroinflammation, and cognitive impairment.
- ADRA1 may interact with CXCR4 to form heterodimers, which could trigger cytoplasmic calcium overload and activate the STING/NF-κB/NLRP3 pathway.
- ADRA1 is associated with critical processes in tauopathy and neuroinflammation, suggesting its potential as a therapeutic target for Alzheimer's disease.
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Key numbers
10 months
Increase in ADRA1 Expression
Elevated ADRA1 levels observed in 10-month-old 3xTg-AD mice.
4 weeks
Improvement in Cognitive Function
Cognitive assessments conducted 4 weeks post ADRA1 knockdown in 3xTg-AD mice.
6
Reduction
Western blot analysis of STING and NF-κB components across experimental groups.