Japanese encephalitis virus stimulates superoxide dismutase activity in rat glial cultures.
Japanese encephalitis virus (JEV) infection is commonly associated with inflammatory reaction and neurological disease that occurs in the infected animals. Reactive oxygen species have been implicated as a critical mediator for inflammation and diseases. The present study investigated the change of redox potential in glial cells following JEV infection. JEV infection induced the generation of superoxide anion and nitric oxide in rat cortical glial cells. Manganese superoxide dismutase, but not copper/zinc superoxide dismutase was activated by JEV infection, and this activation was blocked by pyrrolidine dithiocarbamate. In addition, the increased superoxide dismutase activity was also apparent in JEV acutely, or persistently infected continuous cell lines. These results suggest that cellular factors regulating oxidative pathway might play roles in responding to JEV infection.
Liao
Su-Lan
SL
Department of Education and Research, Taichung Veterans General Hospital, No. 160, Section 3, Taichung-Gang Road, Taichung 40705, Taiwan.
Raung
Shue-Ling
SL
Chen
Chun-Jung
CJ
D000818:Animals; D000831:Animals, Newborn; D001921:Brain / Q000201:enzymology* / Q000276:immunology / Q000821:virology; D002478:Cells, Cultured; D004664:Encephalitis Virus, Japanese / Q000472:pathogenicity*; D004672:Encephalitis, Japanese / Q000201:enzymology* / Q000503:physiopathology; D009457:Neuroglia / Q000201:enzymology* / Q000276:immunology / Q000821:virology; D009569:Nitric Oxide / Q000276:immunology / Q000378:metabolism; D018384:Oxidative Stress / Q000276:immunology*; D051381:Rats; D017382:Reactive Oxygen Species / Q000276:immunology / Q000378:metabolism*; D013482:Superoxide Dismutase / Q000276:immunology / Q000378:metabolism*; D013481:Superoxides / Q000276:immunology / Q000378:metabolism; D015854:Up-Regulation / Q000276:immunology*
D017382:Reactive Oxygen Species; D013481:Superoxides; D009569:Nitric Oxide; D013482:Superoxide Dismutase