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- W2332218478 abstract "The inability of pancreatic b-cells to make sufficient insulin to control blood sugar is a central feature of the aetiology of most forms of diabetes. In this review we focus on the deleterious effects of oxidative stress and endoplasmic reticulum (ER) stress on b-cell insulin biosynthesis and secretion and on inflammatory signalling and apoptosis with a particular emphasis on type 2 diabetes (T2D). We argue that oxidative stress and ER stress are closely entwined phenomena fundamentally involved in b-cell dysfunction by direct effects on insulin biosynthesis and due to consequences of the ER stress-induced unfolded protein response. We summarise evidence that, although these phenomenon can be driven by intrinsic b-cell defects in rare forms of diabetes, in T2D b-cell stress is driven by a range of local environmental factors including increased drivers of insulin biosynthesis, glucolipotoxicity and inflammatory cytokines. We describe our recent findings that a range of inflammatory cytokines contribute to b-cell stress in diabetes and our discovery that interleukin 22 protects b-cells from oxidative stress regardless of the environmental triggers and can correct much of diabetes pathophysiology in animal models. Finally we summarise evidence that b-cell dysfunction is reversible in T2D and discuss therapeutic opportunities for relieving oxidative and ER stress and restoring glycaemic control." @default.
- W2332218478 created "2016-06-24" @default.
- W2332218478 creator A5008274757 @default.
- W2332218478 creator A5046338402 @default.
- W2332218478 creator A5068100769 @default.
- W2332218478 date "2016-01-01" @default.
- W2332218478 modified "2023-09-23" @default.
- W2332218478 title "Oxidative and endoplasmic reticulum stress in b-cell dysfunction in diabetes" @default.
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