title: Extract from Rhus verniciflua Stokes is capable of inhibiting the growth of human lymphoma cells.
abstract: Rhus verniciflua Stokes (RVS), used as a food additive and a traditional herbal medicine, has both antioxidant and antitumor activities which are known to be closely associated with the polyphenolic compounds that it contains. In the present study, we purified a fraction from a crude acetone extract of RVS, named RCMF (RVS chloroform-methanol fraction), and evaluated its ability to scavenge free radicals and inhibit cell growth. In addition, the active compounds responsible for the activities were identified. Results showed that RCMF contained an antioxidant potential and strongly suppressed the proliferative capability of B lymphoma cells. RCMF-mediated suppression of cell growth was verified to be apoptotic, based on the increased DNA fragmentation and low fluorescence intensity in the nuclei after propidium iodide staining, and also on the appearance of DNA laddering. Finally, EI-MS, 1H-NMR, and 13C-NMR spectra confirmed that RCMF contained flavonoid derivatives, including protocatechuic acid, fustin, fisetin, sulfuretin, and butein, suggesting that these flavonoid derivatives are the main active compounds responsible for the antioxidant and antiproliferative activities of RCMF.
authors.affiliation: Division of Biological Sciences and Research Center of Bioactive Materials, Chonbuk National University, Chonju 561-756, South Korea.
authors.forename: J-C
authors.initials: JC
authors.lastname: Lee
authors.forename: K-Y
authors.initials: KY
authors.lastname: Lee
authors.forename: J
authors.initials: J
authors.lastname: Kim
authors.forename: C-S
authors.initials: CS
authors.lastname: Na
authors.forename: N-C
authors.initials: NC
authors.lastname: Jung
authors.forename: G-H
authors.initials: GH
authors.lastname: Chung
authors.forename: Y-S
authors.initials: YS
authors.lastname: Jang
mesh_terms: D000970:Antineoplastic Agents / Q000494:pharmacology*; D000975:Antioxidants / Q000494:pharmacology; D017209:Apoptosis / Q000187:drug effects; D002455:Cell Division / Q000187:drug effects; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D004247:DNA / Q000096:biosynthesis; D053938:DNA Fragmentation; D004273:DNA, Neoplasm / Q000032:analysis; D004305:Dose-Response Relationship, Drug; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D016393:Lymphoma, B-Cell / Q000188:drug therapy* / Q000473:pathology; D024301:Plant Bark / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D029045:Rhus / Q000737:chemistry*
chemical_list: D000970:Antineoplastic Agents; D000975:Antioxidants; D004273:DNA, Neoplasm; D010936:Plant Extracts; D004247:DNA