How β cells can smell insulin fragments.

Ardestani, Amin; Maedler, Kathrin · Cell Metab · 2022

Level V

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Abstract

In this issue of Cell Metabolism, Cheng et al. identify olfactory receptor Olfr109 in β cells with increased expression in islets from mouse models of obesity and type 1 and type 2 diabetes. Binding of a small insulin fragment to Olfr109 fosters islet inflammation, β cell failure, and diabetes progression.

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