Chemical Constituents from the Aerial Parts of Elsholtzia ciliata and Their Protective Activities on Glutamate-Induced HT22 Cell Death
- Authors
- Seo, Y.H.; Trinh, T.A.; Ryu, S.M.; Kim, H.S.; Choi, G.; Moon, B.C.; Shim, S.H.; Jang, D.S.; Lee, D.; Kang, K.S.; Lee, J.
- Issue Date
- Oct-2020
- Publisher
- AMER CHEMICAL SOC
- Citation
- Journal of natural products, v.83, no.10, pp.3149 - 3155
- Journal Title
- Journal of natural products
- Volume
- 83
- Number
- 10
- Start Page
- 3149
- End Page
- 3155
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/79390
- DOI
- 10.1021/acs.jnatprod.0c00756
- ISSN
- 0163-3864
- Abstract
- A new phenolic glucoside, (7E,9E)-3-hydroxyavenalumic acid-3-O-[6'-O-(E)-caffeoyl]-β-d-glucopyranoside (1), and three new acetylated flavone glycosides, acacetin-7-O-[β-d-glucopyranosyl(1″″→2″)-4‴-O-acetyl-α-l-rhamnopyranosyl(1‴→6″)]-β-d-glucopyranoside (3), acacetin-7-O-[6″″-O-acetyl-β-d-glucopyranosyl(1″″→2″)-3‴-O-acetyl-α-l-rhamnopyranosyl(1‴→6″)]-β-d-glucopyranoside (5), and acacetin-7-O-[3″″,6″″-di-O-acetyl-β-d-glucopyranosyl(1″″→2″)-4‴-O-acetyl-α-l-rhamnopyranosyl(1‴→6″)]-β-d-glucopyranoside (7), as well as 34 known compounds (2, 4, 6, and 8-38) were isolated from the aerial parts of Elsholtzia ciliata. The chemical structures of the new compounds were determined by spectroscopic/spectrometric data interpretation using NMR and HRESIMS. The neuroprotective effect of the isolated compounds was evaluated by a cell viability assay on HT22 murine hippocampal neuronal cells. Among them, 23 compounds, including new substances 1 and 3, exhibited neuroprotective effects against glutamate-induced HT22 cell death. In particular, compounds 2, 16, 17, 20, 22, 28, 29, and 31 presented potent neuroprotective effects with EC50 values of 1.5-8.3 μM.
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