Journal
GYNECOLOGIC AND OBSTETRIC INVESTIGATION
Volume 49, Issue 2, Pages 93-97Publisher
KARGER
DOI: 10.1159/000010222
Keywords
amnion cells; cytokines; interleukins; prostaglandin E-2; tumor necrosis factor-alpha
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The effects of five inflammatory cytokines, i,e. interleukin(IL)-1 alpha, IL-1 beta, IL-6, IL-8 and tumor necrosis factor-alpha (TNF-alpha) on prostaglandin E-2 (PGE(2)) production from amnion cells cultured in a serum-free condition was evaluated. After human amnion cells obtained from term placenta were incubated with the inflammatory cytokines at various concentrations, PGE(2) production in the culture supernatant was determined using an enzyme immunoassay method, Under a serum-free culture condition, an increase in PGE(2) production by IL-1 alpha and IL-1 beta was observed at concentrations of 10 and 100 ng/ml compared to control cultures. However, the increases in PGE(2) production by IL-6 and IL-8 were found at relatively high concentrations, i,e. at 100 and 200 ng/ml, TNF-alpha induced a significant increase in PGE(2) production at 50 and 100 ng/ml, but not at 200 ng/ml. These data suggest that these inflammatory cytokines directly stimulate PGE(2) production from amnion cells and may initiate premature labor if amniotic inflammatory cytokines are elevated, e.g. following intrauterine infection. Copyright (C) 2000 S. Karger AG, Basel.
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