Increasing evidence suggests that a complex net-work of fever induction pathways in mammalian exists. In this article,the overview of recent studies on the mechanism of fever induced by different pyrogens using IL-1, ...Increasing evidence suggests that a complex net-work of fever induction pathways in mammalian exists. In this article,the overview of recent studies on the mechanism of fever induced by different pyrogens using IL-1, IL-1R, ICE, IL-1ra, IL-1RacP, IL-6,IL-10,TNFR,cPLA 2,COX,EP,AT 2,iNOS and D 2/3 knockout mice is presented. Hyperthermia respond to localized infection/inflammation(e.g.,sc injection of turpentine) is mediated by IL-1β and IL-6 in turn.While fever induced by systemic infection/inflammation(e.g.,treatment with LPS intraperitoneally) varies with the different doses of pyrogens administered .Fever caused by a low dose of LPS administered ip is IL-6 dependent ,but the IL-6 independent pathway is crucial for the fever evoked by a high dose of LPS.Febrile responses during both local and systemic infection/inflammation develop totally through central PGE 2 dependent mechanism, but some stress induced hyperthermia otherwise.展开更多
To observe the effects of phenylallyl compounds on prostaglandin E2（PGE2）release in mouse cerebral microvascular endothelial cells （bEnd.3） stimulated by IL-1β, and to analyze their structure-activity relationshi...To observe the effects of phenylallyl compounds on prostaglandin E2（PGE2）release in mouse cerebral microvascular endothelial cells （bEnd.3） stimulated by IL-1β, and to analyze their structure-activity relationship. Different concentrations of phenylallyl compounds were added separately, and the content of PGE2 induced by IL-1β in the culture media was measured by ELISA assay. The 50% inhibitory concentration （IC 50 ） of PGE2 was calculated. Studies showed that phenylallyl compounds could affect the PGE2 release differently in bEnd.3 cells induced by IL-1β. Close relationships were shown between the inhibitory activities and the location and number of the substituent groups. In conclusion, phenylallyl compounds exhibited inhibitory activities at different extent on PGE2 release in bEnd.3 cells stimulated by IL-1β and presented certain structure-activity relationship.展开更多
文摘Increasing evidence suggests that a complex net-work of fever induction pathways in mammalian exists. In this article,the overview of recent studies on the mechanism of fever induced by different pyrogens using IL-1, IL-1R, ICE, IL-1ra, IL-1RacP, IL-6,IL-10,TNFR,cPLA 2,COX,EP,AT 2,iNOS and D 2/3 knockout mice is presented. Hyperthermia respond to localized infection/inflammation(e.g.,sc injection of turpentine) is mediated by IL-1β and IL-6 in turn.While fever induced by systemic infection/inflammation(e.g.,treatment with LPS intraperitoneally) varies with the different doses of pyrogens administered .Fever caused by a low dose of LPS administered ip is IL-6 dependent ,but the IL-6 independent pathway is crucial for the fever evoked by a high dose of LPS.Febrile responses during both local and systemic infection/inflammation develop totally through central PGE 2 dependent mechanism, but some stress induced hyperthermia otherwise.
文摘To observe the effects of phenylallyl compounds on prostaglandin E2（PGE2）release in mouse cerebral microvascular endothelial cells （bEnd.3） stimulated by IL-1β, and to analyze their structure-activity relationship. Different concentrations of phenylallyl compounds were added separately, and the content of PGE2 induced by IL-1β in the culture media was measured by ELISA assay. The 50% inhibitory concentration （IC 50 ） of PGE2 was calculated. Studies showed that phenylallyl compounds could affect the PGE2 release differently in bEnd.3 cells induced by IL-1β. Close relationships were shown between the inhibitory activities and the location and number of the substituent groups. In conclusion, phenylallyl compounds exhibited inhibitory activities at different extent on PGE2 release in bEnd.3 cells stimulated by IL-1β and presented certain structure-activity relationship.
