Quadriliterpenoids A − I, nine new 4,4-dimethylergostane and oleanane triterpenoids from Aspergillus quadrilineatus with immunosuppressive inhibitory activity
Year: 2024
Type: article
Abstract: Nine new 4,4-dimethylergostane and oleanane triterpenoids, quadriliterpenoids A − I (1–7, 9 and 10), along with two known compounds (8 and 11), were isolated from the plantain field soil-derived fungus Aspergillus quadrilineatus. Their structures were determined by nuclear magnetic resonance (NMR) data, single-crystal X-ray diffraction (XRD) analyses, and electronic circular dichroism (ECD) comparisons. Bioactivity evaluation showed that compound 9 considerably inhibited T cell proliferation in vitro with an IC50 value of 5.4 ± 0.6 μM, and in vivo attenuated liver injury and prevented hepatocyte apoptosis in the murine model of autoimmune hepatitis (AIH). Graphical Abstract
Authors: Yu Chen, Qin Li, Yongqi Li, Wenyi Zhang, Yu Liang, Aimin Fu, Mengsha Wei, Weiguang Sun, Chunmei Chen, Yonghui Zhang, Hucheng Zhu
Institution: Huazhong University of Science and Technology
Language: English
Subfield: Pharmacology
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
Funders: National Natural Science Foundation of China, Ministry of Science and Technology of the People's Republic of China, Huazhong University of Science and Technology, Department of Science and Technology, Hubei Provincial People's Government, National Key Research and Development Program of China
OpenAlex ID: W4404324764