淀粉样前体蛋白APP与AD有着密切的联系,其分解产生的B-淀粉样蛋AB在脑中的堆积是导致阿尔茨海默病的重要因素。南模生物通过ES细胞打靶技术,将小鼠App基因部分替换为人源APPNL-G-F,从而表达人鼠嵌合APPNL-G-F蛋白,该纯合子小鼠随着年龄增长,大脑会逐渐出现明显的斑块累积症状。
Fig1. Detection of APP expression in brain by RT-PCR.
Fig2. (A) β-Amyloid (6E10) staining of WT and hAPPNL-G-F mice at 1, 3 and 6 months (magnification, 40x and 100x). (B) Statistics of 6E10 positive plaque area.
Fig3. (A) Thioflavine S staining of WT and hAPPNL-G-F mice at 1, 3 and 6 months (magnification, 40x and 100x). (B) Statistics of ThiS positive plaque area.
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