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题名: Microfractionation bioactivity-based ultra performance liquid chromatography/quadrupole time-of-flight mass spectrometry for the identification of nuclear factor-kappa B inhibitors and beta(2) adrenergic receptor agonists in an alkaloidal extract of the folk herb Alstonia scholaris
作者: Hou, Yuanyuan1, 2; Cao, Xuelin3; Wang, Liqiang1, 2; Cheng, Binfeng1, 2; Dong, Linyi3; null(罗晓东)4; Bai, Gang1, 2; Gao, Wenyuan3
刊名: JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
关键词: Dual-bioactivity-integrated fingerprinting ; Constituent identification ; Nuclear factor-kappa B inhibitor ; beta(2) Adrenergic receptor agonist ; Ultra performance liquid chromatography/quadrupole time-of-flight mass spectrometry
英文摘要: Traditional Chinese medicines (TCMs) are generally considered complementary or alternative remedies in most Western countries. The constituents of TCMs are hard to define, and their efficacy is difficult to appraise. Thus, the development of suitable methods for evaluating the relationship between bioactivity and the chemical makeup of complex TCM mixtures remains a great challenge. In the present work, the bioactivity-integrated fingerprints of alkaloidal leaf extracts of Alstonia scholaris, a folk medicinal herb for chronic respiratory diseases, were established by ultra performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UPLC-Q/TOF). This method was coupled with two dual-luciferase reporter assay systems to show nuclear factor-kappa B (NF-kappa B) inhibition and beta(2) adrenergic receptor (beta(2)AR) activation. Using UPLC-Q/TOF, 18 potential candidates were identified according to unique mass spectrometric fragmentation. After in vitro biological evaluation, several indole alkaloids with anti-inflammatory and anti-asthmatic properties were found, including akuammidine, (E)-alstoscholarine, and (Z)-alstoscholarine. Compared with conventional fingerprints, the microfractionation based bioactivity-integrated fingerprints that contain both chemical and bioactivity details offer a more comprehensive understanding of the chemical makeup of plant materials. This strategy clearly demonstrated that dual bioactivity-integrated fingerprinting is a powerful tool for the improved screening and identification of potential dual-target lead compounds in complex herbal medicines. (C) 2012 Elsevier B.V. All rights reserved.
出版日期: 2012-11-01
卷号: 908, 页码:98-104
DOI标识: 10.1016/j.jchromb.2012.10.004
语种: 英语
收录类别: SCI
学科分类: Biochemical Research Methods; Chemistry, Analytical
ISSN号: 1570-0232
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/15922
Appears in Collections:植物化学与西部植物资源持续利用国家重点实验室_期刊论文

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作者单位: 1.Nankai Univ, Coll Pharm, State Key Lab Med Chem Biol, Tianjin 300071, Peoples R China
2.Nankai Univ, Tianjin Key Lab Mol Drug Res, Tianjin 300071, Peoples R China
3.Tianjin Univ, Sch Pharmaceut Sci & Technol, Tianjin 300072, Peoples R China
4.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Kunming 650204, Yunnan Province, Peoples R China

Recommended Citation:
Hou, Yuanyuan; Cao, Xuelin; Wang, Liqiang; Cheng, Binfeng; Dong, Linyi; Luo, Xiaodong; Bai, Gang; Gao, Wenyuan.Microfractionation bioactivity-based ultra performance liquid chromatography/quadrupole time-of-flight mass spectrometry for the identification of nuclear factor-kappa B inhibitors and beta(2) adrenergic receptor agonists in an alkaloidal extract of the folk herb Alstonia scholaris,JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES,2012,908():98-104
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