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公开(公告)号:US08802638B1
公开(公告)日:2014-08-12
申请号:US12421342
申请日:2009-04-09
申请人: Jun Tan , Doug Shytle , Kavon Rezai-Zadeh
发明人: Jun Tan , Doug Shytle , Kavon Rezai-Zadeh
CPC分类号: C07D311/30 , A61K31/7048
摘要: The flavonoid luteolin reduces amyloid-β peptide (Aβ) generation. Luteolin is also a selective GSK-3 inhibitor that 1) decreases amyloidogenic γ-secretase APP processing, and 2) promotes presenilin 1 (PS1) carboxyl-terminal fragment (CTF) phosphorylation. GSK-3α activity is essential for both PS1 CTF phosphorylation states and PS1-APP interaction. These findings were validated in vivo, using a Tg2576 Alzheimer's Disease model system. Luteolin treatment decreased soluble Aβ levels, reduced GSK-3 activity, and disrupted PS1-APP association. In addition, Tg2576 mice treated with diosmin, a glycoside of a flavone structurally and functionally similar to luteolin (diosmetin), displayed significantly reduced Aβ pathology as well.
摘要翻译: 类黄酮木犀草素减少淀粉样蛋白 肽(A&bgr))产生。 木犀草素也是选择性GSK-3抑制剂,1)降低淀粉样蛋白原γ分泌酶APP处理,2)促进早老素1(PS1)羧基末端片段(CTF)磷酸化。 GSK-3α活性对于PS1 CTF磷酸化状态和PS1-APP相互作用都是至关重要的。 使用Tg2576阿尔茨海默病模型系统在体内证实了这些发现。 木犀草素处理降低了可溶性A&bgr; 水平,降低GSK-3活性,并破坏PS1-APP关联。 此外,用diosmin(在结构上和功能上类似于木犀草素(diosmetin)的黄酮的糖苷)处理的Tg2576小鼠显示出显着降低的A&bgr; 病理学以及。
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公开(公告)号:US08778986B1
公开(公告)日:2014-07-15
申请号:US12020214
申请日:2008-01-25
申请人: Jun Tan , Doug Shytle , Kavon Rezai-Zadeh
发明人: Jun Tan , Doug Shytle , Kavon Rezai-Zadeh
IPC分类号: C07D311/30 , A61K31/352
CPC分类号: C07D311/30 , A61K31/352 , A61K31/713
摘要: The bioflavonoid luteolin reduces amyloid-β peptide (Aβ) generation. Luteolin is also a selective GSK-3 inhibitor that 1) decreases amyloidogenic γ-secretase APP processing, and 2) promotes presenilin-1 (PS1) carboxyl-terminal fragment (CTF) phosphorylation. GSK-3α activity is essential for both PS1 CTF phosphorylation states and PS1-APP interaction. To validate The findings were validated in vivo, using a Tg2576 Alzheimer's Disease model system. Luteolin treatment decreased soluble Aβ levels, reduced GSK-3 activity, and disrupted PS1-APP association.
摘要翻译: 生物类黄酮木犀草素减少淀粉样蛋白 肽(A&bgr))产生。 木犀草素也是选择性GSK-3抑制剂,1)降低淀粉样蛋白形成的γ-分泌酶APP处理,2)促进早老蛋白-1(PS1)羧基末端片段(CTF)磷酸化。 GSK-3α活性对于PS1 CTF磷酸化状态和PS1-APP相互作用都是至关重要的。 验证结果在体内验证,使用Tg2576阿尔茨海默病模型系统。 木犀草素处理降低了可溶性A&bgr; 水平,降低GSK-3活性,并破坏PS1-APP关联。
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