Inhibition of Abeta42 aggregation using peptides selected from combinatorial libraries.

Inhibition of Abeta42 aggregation using peptides selected from combinatorial libraries.
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DOI:
10.1002/psc.1150
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发表时间:
2009-08
影响因子:
2.1
通讯作者:
Moffet, David A.
Moffet, David A.
中科院分区:
生物学4区
文献类型:
--
作者:
Baine, Michael;Georgie, Daniel S.;Shiferraw, Elelta Z.;Nguyen, Theresa P. T.;Nogaj, Luiza A.;Moffet, David A.

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越来越多的证据表明,小肽Aβ42的聚集在阿尔茨海默病的发展中起着重要作用。抑制a - β42的初始聚集可能是预防或减缓疾病发作的有效治疗方法。利用基于EGFP酶的体内筛选,我们搜索了两个组合多样的肽库,以确定能够抑制a - β42聚集的肽。从这个初始筛选中,选择了三个候选肽并对其进行了表征。这些研究表明,所选择的肽能够抑制淀粉样蛋白聚集。另外的ThT研究表明,其中一种选择的肽能够分解预制的Aβ42纤维。
Increasing evidence suggests that the aggregation of the small peptide Aβ42 plays an important role in the development of Alzheimer’s disease. Inhibiting the initial aggregation of Aβ42 may be an effective treatment for preventing, or slowing, the onset of the disease. Using an in vivo screen based on the enzyme EGFP, we have searched through two combinatorially diverse peptide libraries to identify peptides capable of inhibiting Aβ42 aggregation. From this initial screen, three candidate peptides were selected and characterized. ThT studies indicated that the selected peptides were capable of inhibiting amyloid aggregation. Additional ThT studies showed that one of the selected peptides was capable of disaggregating preformed Aβ42 fibers.
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