Identification of aplysinopsin as a blood-brain barrier permeable scaffold for anti-cholinesterase and anti-BACE-1 activity
作者:Vijay K. Nuthakki、Rammohan R. Yadav Bheemanaboina、Sandip B. Bharate
DOI:10.1016/j.bioorg.2020.104568
日期:2021.2
To optimize its sub-micromolar activity, the first-generation analogs were prepared and screened. Two most active analogs 5b and (Z)-8g were found to effectively permeate the BBB (Pe > 5 × 10−6 cm/s). The N-sulphonamide derivative 5b display better cholinesterase inhibition, whereas the other analog (Z)-8g strongly inhibits BACE-1 (IC50 0.78 µM) activity. The analog 5b interacts primarily with PAS
Aplysinopsins 是一组海洋衍生的吲哚生物碱,具有多种药理作用。然而,尚未报道它们对抗阿尔茨海默病靶点的影响。在此,我们报告了 aplysinopsin ( 1 )的合成及其对胆碱酯酶和 β 位点淀粉样前体蛋白裂解酶 1 (BACE-1) 的影响。它抑制电鳗乙酰胆碱酯酶 (AChE)、马血清丁酰胆碱酯酶 (BChE) 和人 BACE-1,IC 50值分别为 33.9、30.3 和 33.7 µM,具有出色的 BBB 渗透性 ( P e 8.92 × 10 -6 cm/ s)。为了优化其亚微摩尔活性,制备并筛选了第一代类似物。两个最活跃的类似物5b和 (Z)-发现8g有效渗透 BBB(P e > 5 × 10 -6 cm/s)。所述Ñ磺酰胺衍生物5b中显示更好的胆碱酯酶抑制,而其它类似物(Z) - 8克强烈抑制BACE-1(IC 50 0.78μM)活性。类似物5b主要与 AChE