Neotricitrinols A-C, unprecedented citrinin trimers with anti-osteoporosis activity from the deep-sea-derived Penicillium citrinum W23.
Bioorg Chem
; 139: 106756, 2023 10.
Article
in En
| MEDLINE
| ID: mdl-37544271
ABSTRACT
Marine fungi are prolific source for the discovery of structurally diverse and bioactive molecules. In our search for new anti-osteoporosis compounds from deep-sea-derived fungi, we prioritized a fungus whose extract exhibited moderate activity and rich chemical diversity. The investigation of this strain afforded a class of citrinins, including three new citrinin trimers, neotricitrinols A-C (1-3), and three known dimeric/monomeric precursors (4-6). Neotricitrinols A-C (1-3) feature a unique octacyclic carbon scaffold among the few reported citrinin trimers with their absolute configurations established by spectroscopic analysis, theoretical-statistical approaches (GIAO-NMR, TDDFT-ECD/ORD calculations), DP4+ probability analysis as well as biogenetic consideration. A plausible biosynthetic pathway linking 1-3 from the common intermediate metabolite penicitrinol A (4) was proposed. Biologically, neotricitrinol B (2) showed potential anti-osteoporosis activity by promoting osteoblastogenesis and inhibiting adipogenic differentiation on primary bone mesenchymal stem cells, while displaying no cytotoxicity.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Penicillium
/
Citrinin
Language:
En
Journal:
Bioorg Chem
Year:
2023
Type:
Article
Affiliation country:
China