My NCBISign In

Display Settings:

Format

Send to:

Choose Destination
    J Agric Food Chem. 2010 Sep 22;58(18):10016-9.

    Anticancer and anti-inflammatory effects of cysteine metabolites of the green tea polyphenol, (-)-epigallocatechin-3-gallate.

    Lambert JD, Sang S, Hong J, Yang CS.

    Source

    Department of Food Science, The Pennsylvania State University, 332 Food Science Building, University Park, Pennsylvania 16802, USA. jdl134@psu.edu

    Abstract

    (-)-Epigallocatechin-3-gallate (EGCG) has been shown to have cancer preventive activity in vitro and in vivo. We have previously shown that EGCG can undergo conjugation to cysteine to form 2'-cysteinyl-EGCG and 2''-cysteinyl-EGCG. Studies of thiol-conjugated metabolites of methamphetamine indicate that such metabolites are not detoxified but retain biological activity. Here, we examined the growth inhibitory, pro-oxidant, and anti-inflammatory activities of the cysteine metabolites of EGCG. Both compounds dose-dependently inhibited the growth of colon cancer and intestinal cell lines. Both metabolites prevented aberrant arachidonic acid release and nitric oxide production by lipopolysaccharide-stimulated RAW264.7 cells. Under cell culture conditions, 2''-cysteinyl-EGCG produced H2O2 at a faster rate than EGCG. The results of the present study show that cysteine conjugates of EGCG retain the growth inhibitory, anti-inflammatory, and pro-oxidant activities of EGCG in vitro and may play a role in disease prevention in vivo. These results remain to be confirmed in vivo.

    PMID:
    20718469
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC3045820
    Free PMC Article

    Images from this publication.See all images (4) Free text

    Figure 1
    Figure 3
    Figure 2
    Figure 4

    Publication Types, MeSH Terms, Substances, Grant Support

    Publication Types

    MeSH Terms

    Substances

    Grant Support

    LinkOut - more resources

    Full Text Sources

    Other Literature Sources

    Medical

    Molecular Biology Databases

      Supplemental Content

      Click here to read Click here to read

      Related citations

      See reviews... See all...

      Related information

      • Related Citations
        Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.
      • Compound (MeSH Keyword)
        PubChem chemical compound records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.
      • References for this PMC Article
        Citation referenced in PubMed article. Only valid for PubMed citations that are also in PMC.
      • Substance (MeSH Keyword)
        PubChem chemical substance (submitted) records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.
      • Free in PMC
        Free full text articles in PMC

      Recent activity

      Clear Turn Off Turn On

      Your browsing activity is empty.

      Activity recording is turned off.

      Turn recording back on

      See more...
      You are here: NCBI > Literature > PubMed
      Write to the Help Desk