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  1. Article ; Online: Anti-microtubule activity of the traditional Chinese medicine herb Northern Ban Lan (Isatis tinctoria) leads to glucobrassicin.

    Guan, Pingyin / Zhou, Jianning / Girel, Sergey / Zhu, Xin / Schwab, Marian / Zhang, Kunxi / Wang-Müller, Qiyan / Bigler, Laurent / Nick, Peter

    Journal of integrative plant biology

    2021  Volume 63, Issue 12, Page(s) 2058–2074

    Abstract: Traditional Chinese medicine (TCM) belongs to the most elaborate and extensive systems of plant-based healing. The herb Northern Ban Lan (Isatis tinctoria) is famous for its antiviral and anti-inflammatory activity. Although numerous components isolated ... ...

    Abstract Traditional Chinese medicine (TCM) belongs to the most elaborate and extensive systems of plant-based healing. The herb Northern Ban Lan (Isatis tinctoria) is famous for its antiviral and anti-inflammatory activity. Although numerous components isolated from I. tinctoria have been characterized so far, their modes of action have remained unclear. Here, we show that extracts from I. tinctoria exert anti-microtubular activity. Using time-lapse microscopy in living tobacco BY-2 (Nicotiana tabacum L. cv Bright Yellow 2) cells expressing green fluorescent protein-tubulin, we use activity-guided fractionation to screen out the biologically active compounds of I. tinctoria. Among 54 fractions obtained from either leaves or roots of I. tinctoria by methanol (MeOH/H
    MeSH term(s) Glucosinolates ; HeLa Cells ; Humans ; Indoles ; Isatis/chemistry ; Medicine, Chinese Traditional ; Microtubules
    Chemical Substances Glucosinolates ; Indoles ; glucobrassicin (EA6EH0IU89)
    Language English
    Publishing date 2021-11-10
    Publishing country China (Republic : 1949- )
    Document type Journal Article
    ZDB-ID 2130095-1
    ISSN 1744-7909 ; 1672-9072
    ISSN (online) 1744-7909
    ISSN 1672-9072
    DOI 10.1111/jipb.13177
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Anti‐microtubule activity of the traditional Chinese medicine herb Northern Ban Lan (Isatis tinctoria) leads to glucobrassicin

    Guan, Pingyin / Zhou, Jianning / Girel, Sergey / Zhu, Xin / Schwab, Marian / Zhang, Kunxi / Wang‐Müller, Qiyan / Bigler, Laurent / Nick, Peter

    Journal of integrative plant biology. 2021 Dec., v. 63, no. 12

    2021  

    Abstract: Traditional Chinese medicine (TCM) belongs to the most elaborate and extensive systems of plant‐based healing. The herb Northern Ban Lan (Isatis tinctoria) is famous for its antiviral and anti‐inflammatory activity. Although numerous components isolated ... ...

    Abstract Traditional Chinese medicine (TCM) belongs to the most elaborate and extensive systems of plant‐based healing. The herb Northern Ban Lan (Isatis tinctoria) is famous for its antiviral and anti‐inflammatory activity. Although numerous components isolated from I. tinctoria have been characterized so far, their modes of action have remained unclear. Here, we show that extracts from I. tinctoria exert anti‐microtubular activity. Using time‐lapse microscopy in living tobacco BY‐2 (Nicotiana tabacum L. cv Bright Yellow 2) cells expressing green fluorescent protein‐tubulin, we use activity‐guided fractionation to screen out the biologically active compounds of I. tinctoria. Among 54 fractions obtained from either leaves or roots of I. tinctoria by methanol (MeOH/H₂O 8:2), or ethyl acetate extraction, one specific methanolic root fraction was selected, because it efficiently and rapidly eliminated microtubules. By combination of further purification with ultra‐high‐performance liquid chromatography and high‐resolution tandem mass spectrometry most of the bioactivity could be assigned to the glucosinolate compound glucobrassicin. Glucobrassicin can also affect microtubules and induce apoptosis in HeLa cells. In the light of these findings, the antiviral activity of Northern Ban Lan is discussed in the context of microtubules being hijacked by many viral pathogens for cell‐to‐cell spread.
    Keywords Isatis tinctoria ; Nicotiana tabacum ; Oriental traditional medicine ; anti-inflammatory activity ; antiviral properties ; apoptosis ; ethyl acetate ; fluorescence ; fractionation ; glucobrassicin ; medicinal plants ; methanol ; microscopy ; microtubules ; tandem mass spectrometry ; tobacco ; ultra-performance liquid chromatography
    Language English
    Dates of publication 2021-12
    Size p. 2058-2074.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 2130095-1
    ISSN 1744-7909 ; 1672-9072
    ISSN (online) 1744-7909
    ISSN 1672-9072
    DOI 10.1111/jipb.13177
    Database NAL-Catalogue (AGRICOLA)

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