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Bioactive steroidal alkaloids from the fruits of Solanum nigrum.

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机构: [1]School of Pharmacy and Bioengineering, Chengdu University, Chengdu, 610106, China [2]Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China [3]Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), Department of Paediatrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
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关键词: Solanum nigrum Linn Steroidal alkaloids Anti-inflammatory activity Cytotoxic activity

摘要:
The investigation of the fruits of Solanum nigrum led to the isolation of four previously undescribed steroidal alkaloids, named solanine A, 7α-OH khasianine, 7α-OH solamargine and 7α-OH solasonine, together with six known ones. The structures of the isolated compounds were elucidated unambiguously by spectroscopic data analyses and chemical methods. Solanine A represents an unusual steroidal alkaloid with an unprecedented 6/5/6/5/5/6 hexacyclic ring system, and its structure was confirmed by X-ray single crystal diffraction analysis. Compounds 2-4 were rare naturally occurring steroidal alkaloid glycosides bearing a hydroxyl group at C-7 position. Solanine A showed the most potent inhibitory activity against the LPS-induced NO production in murine RAW264.7 macrophages with an IC50 value of 3.85 ± 0.71 μM and significant cytotoxicity against MGC803, HepG2 and SW480 cancer cell lines with IC50 values of 6.00 ± 0.52 μM, 9.25 ± 0.49 μM and 6.23 ± 0.26 μM, respectively. Copyright © 2018 Elsevier Ltd. All rights reserved.

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出版当年[2018]版:
大类 | 3 区 生物
小类 | 2 区 植物科学 3 区 生化与分子生物学
最新[2023]版:
大类 | 2 区 生物学
小类 | 2 区 生化与分子生物学 2 区 植物科学
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第一作者机构: [1]School of Pharmacy and Bioengineering, Chengdu University, Chengdu, 610106, China [2]Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
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通讯机构: [1]School of Pharmacy and Bioengineering, Chengdu University, Chengdu, 610106, China [2]Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China [*1]School of Pharmacy and Bioengineering, Chengdu University, Chengdu, 610106, China
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