Oxidative, multistep activation of the noncanonical NF-kappaB pathway via disulfide Bcl-3/p50 complex. (Articolo in rivista)

Type
Label
  • Oxidative, multistep activation of the noncanonical NF-kappaB pathway via disulfide Bcl-3/p50 complex. (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1096/fj.07-104109 (literal)
Alternative label
  • Cristofanon S; Morceau F; Scovassi AI; Dicato M; Ghibelli L; Diederich M. (2009)
    Oxidative, multistep activation of the noncanonical NF-kappaB pathway via disulfide Bcl-3/p50 complex.
    in The FASEB journal
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Cristofanon S; Morceau F; Scovassi AI; Dicato M; Ghibelli L; Diederich M. (literal)
Pagina inizio
  • 45 (literal)
Pagina fine
  • 57 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.fasebj.org/content/23/1/45.long (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 23 (literal)
Rivista
Note
  • PubMe (literal)
  • ISI Web of Science (WOS) (literal)
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Cristofanon S; Morceau F; Dicato M; Diederich M: Hopital Kirchberg, Luxembourg Ghibelli L: Università Tor Vergata, Roma Scovassi AI: IGM-CNR (literal)
Titolo
  • Oxidative, multistep activation of the noncanonical NF-kappaB pathway via disulfide Bcl-3/p50 complex. (literal)
Abstract
  • Buthionine sulfoximine (BSO) is a well-known inhibitor of glutathione synthesis, producing slow glutathione (GSH) depletion and oxidative stress; some \"responder\" cells avoid BSO-induced death by trans-activating the prosurvival protein Bcl-2. Here we show that BSO activates a noncanonical, inhibitory NF-kappaB- and p65-independent NF-kappaB pathway via a multistep process leading to the up-regulation of Bcl-2. The slow BSO-induced GSH depletion allows separation of two redox-related phases, namely, early thiol disequilibrium and late frank oxidative stress; each phase contributes to the progressive activation of a p50-p50 homodimer. The early phase, coinciding with substantial thiol depletion, produces a cytosolic preparative complex, consisting of p50 and its interactor Bcl-3 linked by interprotein disulfide bridges. The late phase, coinciding with reactive oxygen species production, is responsible, probably via p38 activation, for nuclear targeting of the complex and trans-activation of Bcl-2. (literal)
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