海绵附生真菌Penicillium sp. G5A-11的次级代谢产物研究
梁学诚(1997—), 男, 湖南省郴州市人, 硕士研究生。email: 835923919@qq.com |
Copy editor: 殷波 , YIN Bo
收稿日期: 2024-04-03
修回日期: 2024-05-21
网络出版日期: 2024-05-27
基金资助
国家自然科学基金项目(41776093)
农业农村部财政专项(NFZX2021)
湖南省研究生教学平台项目(Xiang Jiao Tong [2019]370)
Secondary metabolites from the sponge-derived fungus Penicillium sp. G5A-11
Copy editor: YIN Bo
Received date: 2024-04-03
Revised date: 2024-05-21
Online published: 2024-05-27
Supported by
National Natural Science Foundation of China(41776093)
Financial Fund of the Ministry of Agriculture and Rural Affairs, P. R. of China(NFZX2021)
Project of Postgraduate Teaching Platform in Hunan Province(Xiang Jiao Tong [2019]370)
文章对南海海绵共附生真菌Penicillium sp. G5A-11的化学成分及其细胞毒活性进行了研究。综合运用薄层色谱、硅胶柱色谱、凝胶柱色谱以及半制备型高效液相色谱等多种分离技术对海绵共附生真菌Penicillium sp. G5A-11的大米发酵产物进行分离纯化, 依据波谱数据和理化常数分析并结合相关的文献数据比对, 确定所分离化合物的结构, 并用四唑盐比色(methylthiazolyldiphenyl-tetrazolium bromide, MTT)法对所鉴定的化合物进行了细胞毒活性测定。结果显示: 从海绵共附生真菌Penicillium sp. G5A-11中共分离鉴定了17个化合物, 其结构分别鉴定为: N-乙酰酪胺 (1)、methyl 2-(6-hydroxybenzothiazol-4-yl) acetate (2)、R-甲羟内酯 (3)、烟酸 (4)、altechromone A (5)、2, 5-dimethy-7-hydroxychromone (6)、methyl 7-hydroxy-2-methylchromone-5-carboxylate (7)、stagonoculiepine [(2S, 5R)-1-formyl-1, 2, 3, 4-tetrahydro-5H-2, 5-epiminobenzo[b]azepin-5-yl acetates] (8)、(4R, 5S)-5-(hydroxymethyl)-5-methyl-4-(3-oxobutyl)dihydrofuran-2(3H)-one (9)、9α-hydroxy-1, 2, 3, 4, 5, 10, 19-heptanorergosta-7, 22-diene-6, 9-lact (10)、3β, 5α, 9α-trihydroxy-(22E, 24R)-ergosta-7, 22-dien-6-one (11)、过氧化麦角甾醇 (12)、(22E, 24R)-24-methylcholesta-2, 22-diene-3β, 5α, 6β-triol (13)、麦角甾醇(14)、豆甾醇/β-谷甾醇 (15)、3β, 5α-dihydroxy-(22E, 24R)-ergosta-7, 22-dien-6-one (16)和3β, 5α-dihydroxy-6β-methoxyergosta-7, 22-diene (17)。其中, 化合物7和9为新天然产物。肿瘤细胞毒活性测试结果表明, 化合物10对肿瘤细胞K562 (人慢性髓原白血病细胞)和SGC-7901 (人胃癌细胞)显示出细胞毒活性, 其半数最大抑制浓度值分别为(12.07 ± 0.12)μmol·L-1和(13.17 ± 0.02)μmol·L-1。
关键词: 海洋真菌; Penicillium sp.; 化学成分; 细胞毒活性
梁学诚 , 畅文军 , 戴好富 , 周丽华 , 曾艳波 . 海绵附生真菌Penicillium sp. G5A-11的次级代谢产物研究[J]. 热带海洋学报, 2025 , 44(2) : 73 -83 . DOI: 10.11978/2024075
This paper investigated the chemical constituents of Penicillium sp. G5A-11, which was isolated from a sponge in the South China Sea, and their cytotoxicity. Various separation methods, including thin layer chromatography, silica gel column chromatography, gel column chromatography, and semi-preparative high-performance liquid chromatography, were used to isolate compounds from solid-rice culture of this marine derived fungus. Spectroscopic data, along with physical and chemical properties, were utilized to identify the structures of the isolated compounds, and compared with literature data. Their cytotoxic activities were tested by the MTT (methylthiazolyldiphenyl-tetrazolium bromide) method. Seventeen compounds were identified from the marine fungus Penicillium jiangxiense, including N-acetyltryptamine (1), methyl 2-(6-hydroxybenzothiazol-4-yl) acetate (2), R-mevalonolactone (3), nicotinic acid (4), altechromone A (5), 2, 5-dimethy-7-hydroxychromone (6), methyl 7-hydroxy-2-methylchromone-5-carboxylate (7), stagonoculiepine [(2S, 5R)-1-formyl-1, 2, 3, 4-tetrahydro-5H-2, 5-epiminobenzo[b]azepin-5-yl acetates] (8), (4R, 5S)-5-(hydroxymethyl)-5-methyl-4-(3-oxobutyl) dihydrofuran-2(3H)-one (9), 9α-hydroxy-1, 2, 3, 4, 5, 10, 19-heptanorergosta-7, 22-diene-6, 9-lact (10), 3β, 5α, 9α-trihydroxy-(22E, 24R)-ergosta-7, 22-dien-6-one (11), ergosterol peroxide (5α, 8α-epidioxy-24(R)-methylcholesta-6, 22-dien-3β-ol) (12), (22E, 24R)-24-methylcholesta-2, 22-diene-3β, 5α, 6β-triol (13), ergosterol (14), stigmasterol/β-sitosterol (15), 3β, 5α-dihydroxy-(22E, 24R)-ergosta-7, 22-dien-6-one (16), and 3β, 5α-dihydroxy-6β-methoxyergosta-7, 22-diene (17). Among them, compounds 7 and 9 were new natural products. Cytotoxic activity tests showed that compound 10 was moderately cytotoxic to human chronic myeloid leukemia cells (K562) and human gastric cancer cells (SGC-7901) with IC50 values of (12.07 ± 0.12) μmol·L-1 and (13.17 ± 0.02) μmol·L-1, respectively. However, the results of the anti-inflammatory activity test revealed that none of the compounds exhibited anti-inflammatory activity.
Key words: marine fungus; Penicillium sp.; chemical constituent; cytotoxicity
表1 化合物10和14对于5种肿瘤细胞的细胞毒活性测试结果Tab. 1 The cytotoxic activities of compounds 10 and 14 on five tumor cells |
化合物 | (IC50 ± SD)/(μmol·L-1)a | ||||
---|---|---|---|---|---|
K562 | BEL-7402 | SGC-7901 | A549 | Hela | |
10 | 12.07 ± 0.12 | 15.81 ± 0.26 | 13.17 ± 0.02 | 14.59 ± 0.03 | 20.92 ± 0.06 |
14 | 23.77 ± 0.22 | 23.20 ± 0.16 | 22.71 ± 0.11 | 44.01 ± 0.18 | 42.72 ± 0.52 |
顺铂b | 3.08 ± 0.05 | 4.02 ± 0.06 | 4.11 ± 0.02 | 1.93 ± 0.02 | 11.29 ± 0.15 |
注: a: 3次平行试验的平均值; b: 阳性对照 |
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