ABSTRACT
BACKGROUND/AIM: The present study investigated the effect of eicosapentaenoic acid (EPA) on nuclear factor-kappa B (NF-κB) activation, inflammatory interleukin-6 (IL-6) production, and cell proliferation in a human oesophageal carcinoma cell line (TE-1). MATERIALS AND METHODS: Lipopolysaccharide (LPS)-induced IL-6 production in TE-1 cells in the presence or absence of EPA was determined using enzyme-linked immunosorbent assay (ELISA). The proliferation of TE-1 cells was determined by the WST-1 assay. TE-1 cells were stained with Hoechst 33342 and propidium iodide to observe apoptosis. Immunohistochemical staining of NF-κB in TE-1 cells was performed. RESULTS: LPS increased IL-6 production in TE-1 cells, and EPA treatment prevented this effect. EPA treatment inhibited NF-κB activation and induced apoptosis of TE-1 cells. CONCLUSION: EPA inhibits NF-κB activation and IL-6 production in oesophageal cancer cells, their inducing apoptosis. These effects of EPA may be of benefit in improving the outcome of cancer surgery.
Subject(s)
Anti-Inflammatory Agents/pharmacology , Cell Proliferation/drug effects , Eicosapentaenoic Acid/pharmacology , Interleukin-6/metabolism , Antineoplastic Agents/pharmacology , Apoptosis/drug effects , Apoptosis/immunology , Cell Line, Tumor , Cell Nucleus/metabolism , Cell Shape/drug effects , Esophageal Neoplasms , Humans , Lipopolysaccharides/pharmacology , NF-kappa B/metabolism , Protein TransportABSTRACT
The objective of this study was to know the effects of pelvic lymph node dissection on the survival of the patients who received radical cystectomy without neoadjuvant chemotherapy or radiotherapy. Between 1984 and 2000, 104 patients underwent operation at our institution for tumors clinically diagnosed as locally invasive bladder cancer (T2-4NxM0). Survival rates and 8 prognostic factors (age, sex, size, multiplicity, type, pT, N, pv) were analyzed by uni- and multivariate analysis. The significant factors were size, type, pT, N, pv by univariate analysis. Of these 5 factors, N factor was the most significant by multivariate analysis. Patients (N-) who had more than 20 lymph nodes retrieved showed better survival than the others.
