par Allagnat, Florent ;Christulia, Foteini ;Ortis, Fernanda ;Pirot, Pierre ;Lortz, Stephan;Lenzen, Sigurd;Eizirik, Decio L. ;Cardozo, Alessandra K
Référence Diabetologia, 53, 6, page (1120-1130)
Publication Publié, 2010
Référence Diabetologia, 53, 6, page (1120-1130)
Publication Publié, 2010
Article révisé par les pairs
Résumé : | Pro-inflammatory cytokines involved in the pathogenesis of type 1 diabetes deplete endoplasmic reticulum (ER) Ca2+ stores, leading to ER-stress and beta cell apoptosis. However, the cytokine-induced ER-stress response in beta cells is atypical and characterised by induction of the pro-apoptotic PKR-like ER kinase (PERK)-C/EBP homologous protein (CHOP) branch of the unfolded protein response, but defective X-box binding protein 1 (XBP1) splicing and activating transcription factor 6 activation. The purpose of this study was to overexpress spliced/active Xbp1 (XBP1s) to increase beta cell resistance to cytokine-induced ER-stress and apoptosis. |