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Rationale <p>Tau protein hyperphosphorylation and neuroinflammation playimportant roles in the onset and progression of Alzheimer's disease (AD). SIRT1has been implicated in the regulation of synaptic plasticity, cognitive function, andmemory, and is associated with the modulation of autophagy-and inflammation-related signaling pathways, including AMPK/mTOR/ULK1 and NF-κB. Resveratrol(RSV) has been reported to ameliorate cognitive impairment in AD models,primarily in the context of Aβ–related pathology; however, its potential effects andunderlying mechanisms in Tau-driven pathology remain incompletely understood.</p> Objectives <p>To investigate the effect of RSV on cognitive impairment in mice withTau mutation-induced Alzheimer's disease, and to explore its effects on autophagyand neuroinflammation.</p> Methods <p>Tauopathy models were established using AAV-P301L-Tau. Cognitivefunction was assessed via behavioral tests; Hippocampal injury was evaluatedAccepted manuscriptACCEPTED MANUSCRIPTusing HE and Nissl staining, while autophagy was assessed byimmunofluorescence staining. Mechanisms were examined using Western blot,qRT-PCR, and CCK-8 assays.</p> Results <p>RSV treatment was associated with attenuation of neuronal damage,reduction of p-Tau accumulation, and improvement of cognitive impairment in ADmice. Consistent trends were observed in vitro, where RSV treatment wasassociated with increased cell viability and modulation of autophagy-relatedmarkers in AAV-P301L-Tau-induced BV2 cells. In addition, RSV administration wasaccompanied by coordinated changes in signaling components related to SIRT1,AMPK/mTOR/ULK1, and NF-κB pathways, along with reduced expression ofinflammatory mediators.</p> Conclusions <p>RSV treatment was associated with coordinated modulation ofsignaling components related to the AMPK/mTOR/ULK1 and NF-κB pathways,together with improvements in cognitive performance in AD mice. These findingssupport the potential therapeutic relevance of RSV in Tau-drivenneurodegenerative pathology, while further studies are required to clarify theunderlying mechanisms.</p>

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Study on the improvement effect and mechanism of resveratrol on cognitive impairment in tau mutant adenovirus-induced alzheimer’s disease model mice

  • 期刊论文

  • 发表日期：

    2026年5月6日

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  • Shuting Chen,
  • Kexuan Zhao,
  • Zhidan Shi,
  • Chu Zhang,
  • Hao Wu,
  • Meng Tian,
  • Yi Sun,
  • Ling He

摘要

Rationale

Tau protein hyperphosphorylation and neuroinflammation playimportant roles in the onset and progression of Alzheimer's disease (AD). SIRT1has been implicated in the regulation of synaptic plasticity, cognitive function, andmemory, and is associated with the modulation of autophagy-and inflammation-related signaling pathways, including AMPK/mTOR/ULK1 and NF-κB. Resveratrol(RSV) has been reported to ameliorate cognitive impairment in AD models,primarily in the context of Aβ–related pathology; however, its potential effects andunderlying mechanisms in Tau-driven pathology remain incompletely understood.

Objectives

To investigate the effect of RSV on cognitive impairment in mice withTau mutation-induced Alzheimer's disease, and to explore its effects on autophagyand neuroinflammation.

Methods

Tauopathy models were established using AAV-P301L-Tau. Cognitivefunction was assessed via behavioral tests; Hippocampal injury was evaluatedAccepted manuscriptACCEPTED MANUSCRIPTusing HE and Nissl staining, while autophagy was assessed byimmunofluorescence staining. Mechanisms were examined using Western blot,qRT-PCR, and CCK-8 assays.

Results

RSV treatment was associated with attenuation of neuronal damage,reduction of p-Tau accumulation, and improvement of cognitive impairment in ADmice. Consistent trends were observed in vitro, where RSV treatment wasassociated with increased cell viability and modulation of autophagy-relatedmarkers in AAV-P301L-Tau-induced BV2 cells. In addition, RSV administration wasaccompanied by coordinated changes in signaling components related to SIRT1,AMPK/mTOR/ULK1, and NF-κB pathways, along with reduced expression ofinflammatory mediators.

Conclusions

RSV treatment was associated with coordinated modulation ofsignaling components related to the AMPK/mTOR/ULK1 and NF-κB pathways,together with improvements in cognitive performance in AD mice. These findingssupport the potential therapeutic relevance of RSV in Tau-drivenneurodegenerative pathology, while further studies are required to clarify theunderlying mechanisms.