Coumarin-monoterpenes from Gerbera anandria (Linn.) Sch.-Bip and their neuroprotective activity.
Coumarin-monoterpenes
Gerbera anandria (Linn.) Sch.-Bip
Neuroprotective activity
Journal
Bioorganic chemistry
ISSN: 1090-2120
Titre abrégé: Bioorg Chem
Pays: United States
ID NLM: 1303703
Informations de publication
Date de publication:
07 2022
07 2022
Historique:
received:
15
03
2022
revised:
12
04
2022
accepted:
19
04
2022
pubmed:
30
4
2022
medline:
7
6
2022
entrez:
29
4
2022
Statut:
ppublish
Résumé
Thirty-two undescribed coumarin-monoterpenes, including the first report of six pairs of enantiomeric and twenty congeners, were isolated from the petroleum ether extract of the stems of Gerbera anandria (Linn.) Sch.-Bip. Structurally, these compounds represented C3-substituted 5-methyl-4-hydroxycoumarin-monoterpenes. Among them, 1-7 and 10-24 were rare 5-methylcoumarin-monoterpenes formed through a furan ring. Their chemical structures and absolute configurations were determined by comprehensive analysis of spectroscopic data, including HRESIMS, 1D and 2D NMR spectroscopic data, Mosher's method, ECD calculations and single crystal X-ray diffraction. Furthermore, biological studies revealed that compounds 1-3, 3a, 5, 5a, 11-12, 21-22 and 26 had the neuroprotective effects on scopolamine-induced injury in PC12 cells. Notably, 3 exhibited the strongest neuroprotective activity with the cell viability values of 77.24%. Meanwhile, pretreatment with 3 significantly downregulate apoptosis and reactive oxygen species (ROS) production, as well as strengthen antioxidant enzyme activities (MDA and SOD). Moreover, pretreatment with 3 also could attenuate the down-regulation of HO-1 and Nrf2 induced by scopolamine. In conclusion, these results demonstrated that these compounds possessed the protective effects on scopolamine-injured PC12 cells through anti-apoptotic and anti-oxidant activities.
Identifiants
pubmed: 35487072
pii: S0045-2068(22)00231-0
doi: 10.1016/j.bioorg.2022.105826
pii:
doi:
Substances chimiques
Antioxidants
0
Coumarins
0
Monoterpenes
0
Neuroprotective Agents
0
Scopolamine Derivatives
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
105826Informations de copyright
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