title: Aspirin and indomethacin exhibit antiproliferative effects and induce apoptosis in T98G human glioblastoma cells.
abstract: The in vitro antiproliferative and apoptosis inducing properties of the nonsteroidal anti-inflammatory drugs (NSAIDs) like acetyl salicylic acid (aspirin) and indomethacin were investigated in T98G human glioblastoma cells to explore their potential role in the chemoprevention of human glioma. The biological effects induced by aspirin and indomethacin on T98G cells, in which the expression of cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2) were confirmed by RT-PCR and immunostaining, were investigated by studying cell proliferation and apoptosis assays. The antiproliferative effects occurred in a dose- and time-dependent manner on T98G cells by the treatment with 0.1 -2 mM aspirin and 25-100 microM indomethacin. Moreover, aspirin displayed the greatest growth inhibition within 24 h. Approximately 90% growth inhibition occurred following treatment either with 2 mM aspirin or 100 microM indomethacin by 72 h and induction of apoptosis was confirmed by DNA laddering and TUNEL assay. Our in vitro findings indicate that aspirin and indomethacin have an antiproliferative effect on T98G human glioblastoma cells at toxic concentrations.
authors.affiliation: Department of Neurosurgery, Institute of Neurological Sciences, Faculty of Medicine, Tottori University School of Medicine, 36-1 Nishi-cho, Yonago, Tottori 683-8504, Japan.
authors.forename: Ruhul
authors.initials: R
authors.lastname: Amin
authors.forename: Hideki
authors.initials: H
authors.lastname: Kamitani
authors.forename: Habiba
authors.initials: H
authors.lastname: Sultana
authors.forename: Seijiro
authors.initials: S
authors.lastname: Taniura
authors.forename: Azharul
authors.initials: A
authors.lastname: Islam
authors.forename: Atsuko
authors.initials: A
authors.lastname: Sho
authors.forename: Minako
authors.initials: M
authors.lastname: Ishibashi
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Eling
authors.forename: Takashi
authors.initials: T
authors.lastname: Watanabe
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects*; D001241:Aspirin / Q000494:pharmacology*; D002455:Cell Division / Q000187:drug effects; D051545:Cyclooxygenase 1; D051546:Cyclooxygenase 2; D015971:Gene Expression Regulation, Enzymologic; D005909:Glioblastoma; D006801:Humans; D020287:In Situ Nick-End Labeling; D007213:Indomethacin / Q000494:pharmacology*; D007527:Isoenzymes / Q000235:genetics; D008565:Membrane Proteins; D011451:Prostaglandin-Endoperoxide Synthases / Q000235:genetics; D012333:RNA, Messenger / Q000032:analysis; D014407:Tumor Cells, Cultured / Q000166:cytology / Q000187:drug effects
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D007527:Isoenzymes; D008565:Membrane Proteins; D012333:RNA, Messenger; D051545:Cyclooxygenase 1; D051546:Cyclooxygenase 2; C496511:PTGS1 protein, human; C496540:PTGS2 protein, human; D011451:Prostaglandin-Endoperoxide Synthases; D001241:Aspirin; D007213:Indomethacin