title: Induction of cyclooxygenase-2 expression by interleukin-1beta in human glioma cell line, U87MG.
abstract: Cyclooxygenase-2 (COX-2) is up-regulated in most high-grade gliomas, and high COX-2 expression is associated with aggressive character and poor prognosis. However, the effect of COX-2 in human glioma cell lines is not well known. This study examined the effect of several stimuli, including interleukin-1beta (IL-1beta) and carcinogens, on COX-2 induction in normal astrocyte cells and human glioma cell lines U87MG, A172, and T98G. IL-1beta-induced COX-2 expression strongly at both protein and messenger ribonucleic acid levels in only the U87MG cells of the glioma cell lines. Furthermore, carcinogen induced COX-2 expression. Similar findings were also observed in normal human astrocyte cells. The U87MG glioma cell line is a good model for COX-2 induction in glioma cell lines.
authors.affiliation: Department of Neurosurgery, Institute of Neurological Sciences, Faculty of Medicine, Tottori University, Yonago, Japan. taniura@sanmedia.or.jp
authors.forename: Seijiro
authors.initials: S
authors.lastname: Taniura
authors.forename: Hideki
authors.initials: H
authors.lastname: Kamitani
authors.forename: Takashi
authors.initials: T
authors.lastname: Watanabe
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Eling
mesh_terms: D001253:Astrocytes / Q000187:drug effects* / Q000201:enzymology; D001564:Benzo(a)pyrene / Q000494:pharmacology; D002273:Carcinogens / Q000494:pharmacology*; D045744:Cell Line, Tumor / Q000187:drug effects / Q000201:enzymology; D002478:Cells, Cultured / Q000187:drug effects / Q000201:enzymology; D051545:Cyclooxygenase 1 / Q000096:biosynthesis / Q000235:genetics; D051546:Cyclooxygenase 2 / Q000096:biosynthesis* / Q000235:genetics; D004790:Enzyme Induction / Q000187:drug effects; D015972:Gene Expression Regulation, Neoplastic / Q000187:drug effects*; D005910:Glioma / Q000201:enzymology / Q000235:genetics / Q000473:pathology*; D006801:Humans; D007371:Interferon-gamma / Q000494:pharmacology; D053583:Interleukin-1beta / Q000494:pharmacology*; D009363:Neoplasm Proteins / Q000096:biosynthesis* / Q000235:genetics; D012333:RNA, Messenger / Q000096:biosynthesis; D012334:RNA, Neoplasm / Q000096:biosynthesis; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology; D014409:Tumor Necrosis Factor-alpha / Q000494:pharmacology
chemical_list: D002273:Carcinogens; D053583:Interleukin-1beta; D009363:Neoplasm Proteins; D012333:RNA, Messenger; D012334:RNA, Neoplasm; D014409:Tumor Necrosis Factor-alpha; D001564:Benzo(a)pyrene; D007371:Interferon-gamma; D051545:Cyclooxygenase 1; D051546:Cyclooxygenase 2; C496511:PTGS1 protein, human; C496540:PTGS2 protein, human; D013755:Tetradecanoylphorbol Acetate