Abstract Title:

A pectin from fruits of Lycium barbarum L. decreasesβ-amyloid peptide production through modulating APP processing.

Abstract Source:

Carbohydr Polym. 2018 Dec 1 ;201:65-74. Epub 2018 Aug 15. PMID: 30241864

Abstract Author(s):

Lishuang Zhou, Wenfeng Liao, Hui Zeng, Yanli Yao, Xia Chen, Kan Ding

Article Affiliation:

Lishuang Zhou


Here, a pectin LBP1C-2 with the molecular weight of 99.8 kDa was purified from fruits of Lycium barbarum L. Its structure was elucidated as a backbone of alternate 1, 2-linked α-Rhap and 1, 4-linked α-GalpA, with branches of terminal (T) -, 1, 3-, 1, 6- and 1, 3, 6-linked β-Galp, T-, 1, 5- and 1, 3, 5-linked α-Araf and T-linked β-Rhap substitutedat C-4 of 1, 2, 4-linked α-Rhap. The cell-based experiments indicated that LBP1C-2 suppressed Aβproduction in a dose-dependent manner with no cytotoxicity. Further study showed that expression ofβ-site APP cleaving enzyme 1 (BACE1) was attenuated by LBP1C-2, while expression of ADAM10 was up-regulated by LBP1C-2. Moreover, LBP1C-2 promoted the expression of insulin-degradation enzyme (IDE). These results suggested that LBP1C-2 might be a leading compound for anti-Alzheimer's disease therapy by decreasing Aβproduction through mediating BACE1 and ADAM10 as well as IDE expression.

Study Type : In Vitro Study

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