國家衛生研究院 NHRI:Item 3990099045/15757
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    题名: Reducing brain Abeta burden ameliorates high-fat diet-induced fatty liver disease in APP/PS1 mice
    其它题名: Reducing brain Aβ burden ameliorates high-fat diet-induced fatty liver disease in APP/PS1 mice
    作者: Tsay, HJ;Gan, YL;Su, YH;Sun, YY;Yao, HH;Chen, HW;Hsu, YT;Hsu, JTA;Wang, HD;Shie, FS
    贡献者: Center for Neuropsychiatric Research;Institute of Biotechnology and Pharmaceutical Research
    摘要: High-fat diet (HFD)-induced fatty liver disease is a deteriorating risk factor for Alzheimer's disease (AD). Mitigating fatty liver disease has been shown to attenuate AD-like pathology in animal models. However, it remains unclear whether enhancing Aβ clearance through immunotherapy would in turn attenuate HFD-induced fatty liver or whether its efficacy would be compromised by long-term exposure to HFD. Here, the therapeutic potentials of an anti-Aβ antibody, NP106, was investigated in APP/PS1 mice by HFD feeding for 44 weeks. The data demonstrate that NP106 treatment effectively reduced Aβ burden and pro-inflammatory cytokines in HFD-fed APP/PS1 mice and ameliorated HFD-aggravated cognitive impairments during the final 18 weeks of the study. The rejuvenating characteristics of microglia were evident in APP/PS1 mice with NP106 treatment, namely enhanced microglial Aβ phagocytosis and attenuated microglial lipid accumulation, which may explain the benefits of NP106. Surprisingly, NP106 also reduced HFD-induced hyperglycemia, fatty liver, liver fibrosis, and hepatic lipids, concomitant with modifications in the expressions of genes involved in hepatic lipogenesis and fatty acid oxidation. The data further reveal that brain Aβ burden and behavioral deficits were positively correlated with the severity of fatty liver disease and fasting serum glucose levels. In conclusion, our study shows for the first time that anti-Aβ immunotherapy using NP106, which alleviates AD-like disorders in APP/PS1 mice, ameliorates fatty liver disease. Minimizing AD-related pathology and symptoms may reduce the vicious interplay between central AD and peripheral fatty liver disease, thereby highlighting the importance of developing AD therapies from a systemic disease perspective.
    日期: 2024-04
    關聯: Biomedicine and Pharmacotherapy. 2024 Apr;173:Article number 116404.
    Link to: http://dx.doi.org/10.1016/j.biopha.2024.116404
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85187500049
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