Activation of the cAMP cascade in human fibroblast cultures rescues the activity of oxidatively damaged complex I

Abstract

A study of the relationship between cAMP/PKA-dependent phosphorylation and oxidative damage of subunits of complex I of the mitochondrial respiratory chain is presented. It is shown that, in fibroblast cultures, PKA-mediated phosphorylation of the NDUFS4 subunit of complex I rescues the activity of the oxidatively damaged complex. Evidence is presented showing that this effect is mediated by phosphorylation-dependent exchange of carbonylated NDUFS4 subunit in the assembled complex with the de novo synthesized subunit. These results indicate a potential use for β-adrenoceptor agonists in preventing/reversing the detrimental effects of oxidative stress in the mitochondrial respiratory system.


Tutti gli autori

  • SIGNORILE A.;COCCO T.M.

Titolo volume/Rivista

Non Disponibile


Anno di pubblicazione

2012

ISSN

0891-5849

ISBN

Non Disponibile


Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile


Numero di citazioni Scopus

24

Ultimo Aggiornamento Citazioni

Non Disponibile


Settori ERC

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Codici ASJC

Non Disponibile