PMID- 12133311 OWN - NLM STAT- MEDLINE DCOM- 20020808 LR - 20131121 IS - 0366-6999 (Print) IS - 0366-6999 (Linking) VI - 115 IP - 4 DP - 2002 Apr TI - Effect of polysaccharide sulfate 916 on the production of nitric oxide in ECV304 cells induced by cytokines and H(2)O(2). PG - 614-6 AB - OBJECTIVE: To investigate the effect of polysaccharide sulfate 916 (PS916) on the production of nitric oxide (NO) in ECV304 cells induced by tumor necrosis factor-alpha (TNF alpha), interleukin-1 beta (IL-1 beta) and H(2)O(2) in vitro. METHODS: Production of NO in ECV304 cells was measured by the Griess method and the proliferation of cells was tested by the MTT method. The activity of NO synthase was detected spectrophotometrically. RESULTS: Production of NO in ECV304 cells decreased after treatment with 40 ng/ml IL-1 beta and 40 ng/ml TNF alpha, but increased in the presence of H(2)O(2) 0.1 mmol/L. PS916 significantly enhanced NO production in ECV304 cells in a dose-dependent manner in the TNF alpha and IL-1 beta treated groups and decreased it in the H(2)O(2) treated group. Proliferation of ECV304 cells was inhibited by TNFalpha and H(2)O(2) and no effect was found in the IL-1 beta treated group. PS916 increased the proliferation of cells treated with TNFalpha and H(2)O(2) dose-dependently. In vitro, PS916 has no effect on the activity of NO synthase. CONCLUSION: PS916 has a protective effect on ECV304 cells exposed to IL-1 beta, TNF alpha and H(2)O(2). FAU - Ren, Decheng AU - Ren D AD - Institute of Material Medica, Chinese Academy of Medical Sciences, Beijing 100050, China. dugh@imm.ac.cn FAU - Geng, Meiyu AU - Geng M FAU - Du, Guanhua AU - Du G LA - eng PT - Journal Article PL - China TA - Chin Med J (Engl) JT - Chinese medical journal JID - 7513795 RN - 0 (Cytokines) RN - 0 (Interleukin-1) RN - 0 (Polysaccharides) RN - 0 (Sulfuric Acids) RN - 0 (Tumor Necrosis Factor-alpha) RN - 31C4KY9ESH (Nitric Oxide) RN - BBX060AN9V (Hydrogen Peroxide) RN - EC 1.14.13.39 (Nitric Oxide Synthase) SB - IM MH - Cell Division/drug effects MH - Cell Line MH - Cytokines/*pharmacology MH - Dose-Response Relationship, Drug MH - Endothelium, Vascular/cytology/*drug effects/metabolism MH - Humans MH - Hydrogen Peroxide/*pharmacology MH - Interleukin-1/pharmacology MH - Nitric Oxide/*biosynthesis MH - Nitric Oxide Synthase/drug effects/metabolism MH - Polysaccharides/metabolism/*pharmacology MH - Sulfuric Acids/metabolism MH - Tumor Necrosis Factor-alpha/pharmacology EDAT- 2002/07/23 10:00 MHDA- 2002/08/09 10:01 CRDT- 2002/07/23 10:00 PHST- 2002/07/23 10:00 [pubmed] PHST- 2002/08/09 10:01 [medline] PHST- 2002/07/23 10:00 [entrez] PST - ppublish SO - Chin Med J (Engl). 2002 Apr;115(4):614-6.