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- W2784234930 abstract "Deposition of amyloid-β (Aβ) as senile plaques is one of the pathological hallmarks in the brains of Alzheimer's disease (AD) patients. In addition, glial activation has been found in AD brains, although the precise pathological role of astrocytes remains unclear. Here, we identified kallikrein-related peptidase 7 (KLK7) as an astrocyte-derived Aβ degrading enzyme. Expression of KLK7 mRNA was significantly decreased in the brains of AD patients. Ablation of Klk7 exacerbated the thioflavin S-positive Aβ pathology in AD model mice. The expression of Klk7 was upregulated by Aβ treatment in the primary astrocyte, suggesting that Klk7 is homeostatically modulated by Aβ-induced responses. Finally, we found that the Food and Drug Administration-approved anti-dementia drug memantine can increase the expression of Klk7 and Aβ degradation activity specifically in the astrocytes. These data suggest that KLK7 is an important enzyme in the degradation and clearance of deposited Aβ species by astrocytes involved in the pathogenesis of AD." @default.
- W2784234930 created "2018-01-26" @default.
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- W2784234930 date "2018-01-08" @default.
- W2784234930 modified "2023-10-17" @default.
- W2784234930 title "Loss of kallikrein‐related peptidase 7 exacerbates amyloid pathology in Alzheimer's disease model mice" @default.
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- W2784234930 doi "https://doi.org/10.15252/emmm.201708184" @default.
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