Antineurodegenerative Labdane Diterpenoid Glycosides from the Twigs of Pinus koraiensis.

Journal of Natural Products
Kyoung Jin ParkKang Ro Lee

Abstract

Eleven new labdane-type diterpenoid glycosides, koraiensides A-K (1-11), together with two known analogues were isolated from the twigs of Pinus koraiensis. Their structures were elucidated via NMR, HRMS, and ECD data, DP4+ statistical analysis, and hydrolysis. The metabolites were tested for induction of nerve growth factor in C6 glioma cells to evaluate their potential neuroprotective activity. The compounds were measured for production of nitric oxide levels in lipopolysaccharide (LPS)-activated murine microglia BV2 cells to assess their antineuroinflammatory activity. Compounds 10 and 13 showed NGF secretion inducing effects from C6 glioma cells (162.3 ± 13.9% and 162.7 ± 6.9%, respectively). Compound 6 showed an IC50 value of 24.1 μM, implying significant inhibition of NO production.

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May 15, 2019·Journal of Natural Products·Kyoung Jin ParkKang Ro Lee

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Citations

Dec 9, 2020·Natural Product Research·Huiling WenYonghui Zhang
May 6, 2021·International Journal of Molecular Sciences·Lalita SubediSun-Yeou Kim
Nov 7, 2021·Chemistry & Biodiversity·Di LiuJian Lin Li

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