Cytotoxic and Antifungal Constituents Isolated from the Metabolites of Endophytic Fungus DO14 from Dendrobium officinale
作者:Ling-Shang Wu、Min Jia、Ling Chen、Bo Zhu、Hong-Xiu Dong、Jin-Ping Si、Wei Peng、Ting Han
DOI:10.3390/molecules21010014
日期:——
Two novel cytotoxic and antifungal constituents, (4S,6S)-6-[(1S,2R)-1, 2-dihydroxybutyl]-4-hydroxy-4-methoxytetrahydro-2H-pyran-2-one (1), (6S,2E)-6-hydroxy-3-methoxy-5-oxodec-2-enoic acid (2), together with three known compounds, LL-P880γ (3), LL-P880α (4), and Ergosta-5,7,22-trien-3b-ol (5) were isolated from the metabolites of endophytic fungi from Dendrobium officinale. The chemical structures were determined based on spectroscopic methods. All the isolated compounds 1–5 were evaluated by cytotoxicity and antifungal effects. Our present results indicated that compounds 1–4 showed notable anti-fungal activities (minimal inhibitory concentration (MIC) ≤ 50 μg/mL) for all the tested pathogens including Candida albicans, Cryptococcus neoformans, Trichophyton rubrum, Aspergillus fumigatus. In addition, compounds 1–4 possessed notable cytotoxcities against human cancer cell lines of HL-60 cells with the IC50 values of below 100 μM. Besides, compounds 1, 2, 4 and 5 showed strong cytotoxities on the LOVO cell line with the IC50 values were lower than 100 μM. In conclusion, our study suggested that endophytic fungi of D. officinale are great potential resources to discover novel agents for preventing or treating pathogens and tumors.
两种新型细胞毒性和抗真菌成分,(4S,6S)-6-[(1S,2R)-1,2-二羟基丁基]-4-羟基-4-甲氧基四氢-2H-吡喃-2-酮(1),(6S,2E)-6-羟基-3-甲氧基-5-氧代-2-烯酸(2)、以及三种已知化合物 LL-P880γ (3)、LL-P880α (4) 和 Ergosta-5,7,22-三烯-3b-醇 (5)。其化学结构是根据光谱方法确定的。对所有分离出的化合物 1-5 进行了细胞毒性和抗真菌效果评估。我们目前的研究结果表明,化合物 1-4 对所有测试的病原体(包括白色念珠菌、新型隐球菌、红色毛癣菌和烟曲霉)都具有显著的抗真菌活性(最小抑菌浓度 (MIC) ≤ 50 μg/mL)。此外,化合物 1-4 对人类癌症细胞株 HL-60 细胞具有显著的细胞毒性,其 IC50 值低于 100 μM。此外,化合物 1、2、4 和 5 对 LOVO 细胞系也有很强的细胞毒性,其 IC50 值低于 100 μM。总之,我们的研究表明,D. officinale 的内生真菌是发现预防或治疗病原体和肿瘤的新型药物的巨大潜在资源。