Abstract

Four new lactones, including hypomonacid A (1) and hypomonone A–C (4–6), as well as nine known polyketide analogues (2–3 and 7–13) were obtained from endophytic fungus Hypomontagnella sp. TX-09 derived from Santalum album. Their planar structures were extensively established by analysing HRESIMS and NMR spectroscopic data. Stereochemistry of new compounds was determined by X-ray diffraction analysis and modified Mosher’s method in combination with quantum-chemical ECD calculation. In addition, compounds 1 and 2 showed anti-inflammatory activity by inhibition of lipopolysaccharide (LPS)-induced NO production in RAW264.7 cells at 50 μmol/L without cytotoxicity. Among them, compound 1 inhibited the production of LPS-stimulated inflammation in mouse macrophage RAW264.7 cells by suppressing the expression of iNOS, TNF-α, IL-1β, and IL-6.

Details

Title
Anti-inflammatory polyketides from Santalum album derived endophytic fungus Hypomontagnella sp. TX-09
Author
Ouyang, Xin 1 ; Chen, Senhua 2 ; Chen, Qiling 1 ; Guo, Heng 2 ; Liu, Lan 2 ; Liu, Hongju 1 ; Chong, Yan 1 

 School of Pharmacy, Guangdong Medical University, Dongguan, China 
 School of Marine Sciences, Sun Yat-sen University, Zhuhai, China 
Pages
918-928
Publication year
2025
Publication date
Jun 2025
Publisher
Taylor & Francis Ltd.
ISSN
21501203
e-ISSN
21501211
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3206357802
Copyright
© 2024 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This work is licensed under the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.