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Identification and Cytotoxic Activities of Two New Trichothecenes and a New Cuparane-Type Sesquiterpenoid from the Cultures of the Mushroom Engleromyces goetzii. | LitMetric
Engleromyces goetzii is a traditional medicinal mushroom that is widely used to treat infection, inflammation and cancer in Tibet, Sichuan and Yunnan provinces of China. Two new trichothecenes, engleromycones A and B (1 and 2), one new cuparane-type sesquiterpenoid named infuscol F (11), eight known trichothecene analogs, sambucinol (3), 3-deoxysambucinol (4), trichothecolone (5), trichodermol (6), 8-deoxytrichothecin (7), trichothecin (8), trichothecinol B (9) and trichothecinol A (10), and one known cyclopentanoid sesquiterpene cyclonerodiol (12) were isolated from the cultures of E. goetzii. The new compounds were elucidated through spectroscopic analyses. The anticancer effects of trichothecenes 1-10 were examined in the HL-60, SMMC-7721, A549, MCF-7, and SW-480 human cancer cell lines using an MTT assay. Trichothecinol A (10) significantly inhibited the growth of MCF-7 cells, with an IC value of 0.006 µM, which was comparable to the cytotoxic activity of the positive control, paclitaxel, indicating that trichothecinol A (10) represents a potential anticancer agent.
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