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Type: Artigo de periódico
Title: Is Are/poly(u)-binding Factor 1 (auf1) A New Player In Cytokine-mediated Beta Cell Apoptosis?
Author: Vanzela E.C.
Cardozo A.K.
Abstract: Type 1 diabetes is a chronic autoimmune disease involving the progressive loss of beta cell mass. Cytokines released by immune cells are early contributors to beta cell apoptosis. Thus, an understanding of the signal transduction mechanisms induced by cytokines in beta cells is necessary for the rational design of novel therapies to prevent or to cure this disease. Cytokine-mediated beta cell apoptosis is a complex phenomenon that includes activation of the transcription factors signal transducer and activator of transcription 1 and nuclear factor êB (NFêB), c-Jun N-terminal kinase, endoplasmic reticulum (ER) stress and the intrinsic mitochondrial apoptotic pathway. NFêB has both a proinflammatory and a pro-apoptotic role in beta cells. One of the mechanisms by which NFêB contributes to beta cell apoptosis is via activation of ER stress. The role for ER stress in beta cell apoptosis is not completely clarified but involves production of C/EBP homologous protein and activation of the intrinsic mitochondrial apoptotic pathway. In this issue of Diabetologia, Roggli et al (DOI 10.1007/s00125-011- 2399-7) report on a new player in this elaborate response, the RNA-binding protein ARE/poly(U)-binding factor 1. This commentary discusses these findings and their relevance to the field. © Springer-Verlag 2012.
Rights: fechado
Identifier DOI: 10.1007/s00125-012-2552-y
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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