Diisoprenyl Cyclohexene-Type Meroterpenoids with Cytotoxic Activity from a Mangrove Endophytic Fungus Aspergillus sp. GXNU-Y85

Author:

Qin Feng12,Song Zi-Shuo1,Luo Li1,Bo Xiang-Long1,Wu Fu-Rong1,Tan Mei-Jing1,Wang Fan-Fan2,Huang Xi-Shan1,Wang Heng-Shan1

Affiliation:

1. State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China

2. Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China

Abstract

Five new diisoprenyl cyclohexene-type meroterpenoids, aspergienynes J–N (1–5), along with three known analogues (6–8), were obtained from the mangrove endophytic fungal strain Aspergillus sp. GXNU-Y85. The chemical structures, including their absolute configurations, were established via spectroscopic data and comparison of experimental and calculated ECD spectra. Cytotoxicity assay results indicated that compound 8 had strong cytotoxicity against HeLa cancer cells, and its IC50 value was 11.8 μM. In addition, flow cytometry analysis revealed that the cytotoxicity of 8 was due to the induction of G1 cell cycle arrest and apoptosis in HeLa cells.

Funder

National Natural Science Foundation of China

Guangxi Science and Technology Base Special Talents

Natural Science Foundation of Guangxi Province

Basic Ability Improvement Project of Young and Middle-Aged Teachers in Guangxi Colleges

Guangxi Funds for Distinguished Experts

PhD Start-up Fund of Yulin Normal University

Publisher

MDPI AG

Subject

Drug Discovery,Pharmacology, Toxicology and Pharmaceutics (miscellaneous),Pharmaceutical Science

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