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dc.contributor.authorDe Ramon, L.-
dc.contributor.authorRipoll, E.-
dc.contributor.authorMerino, A.-
dc.contributor.authorLúcia, M.-
dc.contributor.authorAran, J.M.-
dc.contributor.authorPérez-Rentero, Sonia-
dc.contributor.authorLloberas, N.-
dc.contributor.authorCruzado, J.M.-
dc.contributor.authorGrinyó, J.M.-
dc.contributor.authorTorras, J.-
dc.identifierdoi: 10.1038/ki.2015.146-
dc.identifierissn: 1523-1755-
dc.identifier.citationKidney International 88: 538- 549 (2015)-
dc.description.abstract© 2015 International Society of Nephrology. Ischemia-reperfusion occurs in a great many clinical settings and contributes to organ failure or dysfunction. CD154-CD40 signaling in leukocyte-endothelial cell interactions or T-cell activation facilitates tissue inflammation and injury. Here we tested a siRNA anti-CD40 in rodent warm and cold ischemia models to check the therapeutic efficacy and anti-inflammatory outcome of in vivo gene silencing. In the warm ischemia model different doses were used, resulting in clear renal function improvement and a structural renoprotective effect. Renal ischemia activated the CD40 gene and protein expression, which was inhibited by intravenous siRNA administration. CD40 gene silencing improved renal inflammatory status, as seen by the reduction of CD68 and CD3 T-cell infiltrates, attenuated pro-inflammatory, and enhanced anti-inflammatory mediators. Furthermore, siRNA administration decreased a spleen pro-inflammatory monocyte subset and reduced TNFα secretion by splenic T cells. In the cold ischemia model with syngeneic and allogeneic renal transplantation, the most effective dose induced similar functional and structural renoprotective effects. Our data show the efficacy of our siRNA in modulating both the local and the systemic inflammatory milieu after an ischemic insult. Thus, CD40 silencing could emerge as a novel therapeutic strategy in solid organ transplantation.-
dc.publisherBlackwell Publishing-
dc.relation.isversionofPublisher's version-
dc.titleCD154-CD40 T-cell co-stimulation pathway is a key mechanism in kidney ischemia-reperfusion injury-
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