کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2019770 | 1542224 | 2012 | 6 صفحه PDF | دانلود رایگان |
PGE2 is a potent modulator of the T helper (Th)17 immune response that plays a critical role in the host defense against bacterial, fungal and viral infections. We recently showed high serum levels of interleukin (IL)-17 in patients with gonococcal infection and we hypothesized that Neisseria gonorrhoeae could exploit a PGE2 mediated mechanism to promote IL-17 production.Here we show that N. gonorrhoeae induces human dendritic cell (DC) maturation, secretion of prostaglandin E2 and proinflammatory cytokines, including the pro-Th17 cytokine IL-23. Blocking PGE2 endogenous synthesis selectively reduces IL-23 production by DC in response to gonococcal stimulation, confirming recent data on PGE2/IL-23 crosstalk. N. gonorrhoeae stimulated DC induce a robust IL-17 production by memory CD4+ T cells and this function correlates with PGE2 production.Our findings delineate a previously unknown role for PGE2 in the immune response to N. gonorrhoeae, suggesting its contribute via Th17 cell expansion.
► Neisseria gonorrhoeae induces PGE2 and IL-23 production by human dendritic cells.
► PGE2 favors IL-17 production by memory T cells.
► We highlight the immunomodulatory role for PGE2 in the Th17 response to bacteria.
Journal: Prostaglandins & Other Lipid Mediators - Volume 99, Issues 1–2, October 2012, Pages 24–29