Antibacterial and cytotoxic new napyradiomycins from the marine-derived Streptomyces sp. SCSIO 10428.

Antibacterial and cytotoxic new napyradiomycins from the marine-derived Streptomyces sp. SCSIO 10428.
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来自海洋来源的链霉菌的抗菌和细胞毒性新型萘吡霉素。

DOI:
10.3390/md11062113
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发表时间:
2013-06-14
期刊:
影响因子:
5.4
通讯作者:
Zhang C
Zhang C
中科院分区:
医学2区
文献类型:
--
作者:
Wu Z;Li S;Li J;Chen Y;Saurav K;Zhang Q;Zhang H;Zhang W;Zhang W;Zhang S;Zhang C

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从海洋放线菌SCSIO 10428的发酵液中分离得到3个新的萘放射霉素(1-3),以及6个已知的类似物萘放射霉素A1(4)、18-氧萘放射霉素A1(5)、萘放射霉素B1(6)、萘放射霉素B3(7)、萘甲羟萘(8)和萘放射霉素SR(9)。经16 S rRNA基因序列分析,确定菌株SCSIO 10428为链霉菌属。新化合物1-3分别命名为4-脱氯-4 α-脱氯吡放射霉素A1(1)、3-脱氯-3-溴吡放射霉素A1(2)和3-氯-6,8-二羟基-8-α-拉帕酮(3)。napyradiamycins 1-9均未显示出抗氧化活性。萘放射霉素1-8显示出对三种革兰氏阳性细菌葡萄球菌和芽孢杆菌菌株的抗菌活性,MIC值范围为0.25至32 μg mL-1,除了化合物3对金黄色葡萄球菌ATCC 29213的MIC值高于128 μg mL-1。萘放射霉素2、4、6和7对4种人癌细胞系SF-268、MCF-7、NCI-H460和HepG-2表现出中等的细胞毒性,IC 50值低于20 μM,而其他5种萘放射霉素1、3、5、8和9的IC 50值高于20 μM。
Three new napyradiomycins (1–3) were isolated from the culture broth of a marine-derived actinomycete strain SCSIO 10428, together with six known related analogues napyradiomycin A1 (4), 18-oxonapyradiomycin A1 (5), napyradiomycin B1 (6), napyradiomycin B3 (7), naphthomevalin (8), and napyradiomycin SR (9). The strain SCSIO 10428 was identified as a Streptomyces species by the sequence analysis of its 16S rRNA gene. The structures of new compounds 1–3, designated 4-dehydro-4a-dechloronapyradiomycin A1 (1), 3-dechloro-3-bromonapyradiomycin A1 (2), and 3-chloro-6,8-dihydroxy-8-α-lapachone (3), respectively, were elucidated by comparing their 1D and 2D NMR spectroscopic data with known congeners. None of the napyradiomycins 1–9 showed antioxidative activities. Napyradiomycins 1–8 displayed antibacterial activities against three Gram-positive bacteria Staphylococcus and Bacillus strains with MIC values ranging from 0.25 to 32 μg mL−1, with the exception that compound 3 had a MIC value of above 128 μg mL−1 against Staphylococcus aureus ATCC 29213. Napyradiomycins 2, 4, 6, and 7 exhibited moderate cytotoxicities against four human cancer cell lines SF-268, MCF-7, NCI-H460, and HepG-2 with IC50 values below 20 μM, while the IC50 values for other five napyradiomycins 1, 3, 5, 8 and 9 were above 20 μM.
DOI: 10.3390/md8030498
发表时间: 2010-03-05
期刊: Marine drugs
影响因子: 5.4
作者:
Rahman H;Austin B;Mitchell WJ;Morris PC;Jamieson DJ;Adams DR;Spragg AM;Schweizer M
通讯作者: Schweizer M
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发表时间: 1991-04-01
影响因子: 4.4
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影响因子: 15
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