dc.creator | Moreira V. | |
dc.creator | Lomonte B. | |
dc.creator | Vinolo M.A.R. | |
dc.creator | Curi R. | |
dc.creator | Gutierrez J.M. | |
dc.creator | Teixeira C. | |
dc.date | 2014 | |
dc.date | 2015-06-25T17:50:31Z | |
dc.date | 2015-11-26T15:33:46Z | |
dc.date | 2015-06-25T17:50:31Z | |
dc.date | 2015-11-26T15:33:46Z | |
dc.date.accessioned | 2018-03-28T22:42:21Z | |
dc.date.available | 2018-03-28T22:42:21Z | |
dc.identifier | | |
dc.identifier | Mediators Of Inflammation. Hindawi Publishing Corporation, v. 2014, n. , p. - , 2014. | |
dc.identifier | 9629351 | |
dc.identifier | 10.1155/2014/105879 | |
dc.identifier | http://www.scopus.com/inward/record.url?eid=2-s2.0-84899949347&partnerID=40&md5=73d83cc9bc0e19e0fcbadfe06baed313 | |
dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/85852 | |
dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/85852 | |
dc.identifier | 2-s2.0-84899949347 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1262829 | |
dc.description | Phospholipases A2 (PLA2) are key enzymes for production of lipid mediators. We previously demonstrated that a snake venom sPLA2 named MT-III leads to prostaglandin (PG)E2 biosynthesis in macrophages by inducing the expression of cyclooxygenase-2 (COX-2). Herein, we explored the molecular mechanisms and signaling pathways leading to these MT-III-induced effects. Results demonstrated that MT-III induced activation of the transcription factor NF-κB in isolated macrophages. By using NF-κB selective inhibitors, the involvement of this factor in MT-III-induced COX-2 expression and PGE2 production was demonstrated. Moreover, MT-III-induced COX-2 protein expression and PGE 2 release were attenuated by pretreatment of macrophages with SB202190, and Ly294002, and H-7-dihydro compounds, indicating the involvement of p38MAPK, PI3K, and PKC pathways, respectively. Consistent with this, MT-III triggered early phosphorylation of p38MAPK, PI3K, and PKC. Furthermore, SB202190, H-7-dihydro, but not Ly294002 treatment, abrogated activation of NF-κB induced by MT-III. Altogether, these results show for the first time that the induction of COX-2 protein expression and PGE2 release, which occur via NF-κB activation induced by the sPLA2-MT-III in macrophages, are modulated by p38MAPK and PKC, but not by PI3K signaling proteins. © 2014 Vanessa Moreira et al. | |
dc.description | 2014 | |
dc.description | | |
dc.description | | |
dc.description | | |
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dc.language | en | |
dc.publisher | Hindawi Publishing Corporation | |
dc.relation | Mediators of Inflammation | |
dc.rights | aberto | |
dc.source | Scopus | |
dc.title | An Asp49 Phospholipase A2 From Snake Venom Induces Cyclooxygenase-2 Expression And Prostaglandin E2 Production Via Activation Of Nf- κ B, P38mapk, And Pkc In Macrophages | |
dc.type | Artículos de revistas | |