Chia-Hao Chang, George Hsiao, Shih-Wei Wang, Juei-Yu Yen, Shu-Jung Huang, Wei-Chiung Chi, Tzong-Huei Lee
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Chemical constituents from the medicinal herb-derived fungus Chaetomium globosum Km1226.
Background: Endophytic fungi have proven to be a rich source of novel natural products with a wide-array of biological activities and higher levels of structural diversity.
Results: Chemical investigation on the liquid- and solid-state fermented products of Chaetomium globosum Km1226 isolated from the littoral medicinal herb Atriplex maximowicziana Makino resulted in the isolation of compounds 1-14. Their structures were determined by spectroscopic analysis as three previously undescribed C13-polyketides, namely aureonitol C (1), mollipilins G (2), and H (3), along with eleven known compounds 4-14. Among these, mollipilin A (5) exhibited significant nitric oxide production inhibitory activity in LPS-induced BV-2 microglial cells with an IC50 value of 0.7 ± 0.1 µM, and chaetoglobosin D (10) displayed potent anti-angiogenesis property in human endothelial progenitor cells (EPCs) with an IC50 value of 0.8 ± 0.3 µM.
Conclusions: Three previously unreported compounds 1-3 were isolated and identified. Mollipilin A (5) and chaetoglobosin D (10) could possibly be developed as anti-inflammatory and anti-angiogenic lead drugs, respectively.
期刊介绍:
Botanical Studies is an open access journal that encompasses all aspects of botany, including but not limited to taxonomy, morphology, development, genetics, evolution, reproduction, systematics, and biodiversity of all plant groups, algae, and fungi. The journal is affiliated with the Institute of Plant and Microbial Biology, Academia Sinica, Taiwan.