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- W4381378010 abstract "Glucose-stimulated pancreatic islets show α cell mass dependent fast and slow Ca2+ oscillations. It implicates structure-function relationship is a fundamental principle of pancreatic islets. Despite the low percentage within the islet, the δ cells entangle with α cells and occupy the islet periphery, to envelop the β cells in the core. However, the contribution of the extensive δ-α paracrine organization to the origin of the variability in Ca2+ activation, remains unclear. Here we found that somatostatin’s perturbation on Ca2+ oscillation critically depended on α cell mass. Furthermore, pharmacological and opto-geneticalperturbation on δ-α cell interaction cause islets to repeatably show fast and slow Ca2+ oscillations. Our study highlights the importance of δ-α cell interactions as the origin of the variability in oscillation pattern. Studying islets in their intact pancreas morphology in tissue slice revealed that glucose recruited the δ cells to control the α and β cell activity. Disclosure H.Ren: None." @default.
- W4381378010 created "2023-06-21" @default.
- W4381378010 creator A5089253950 @default.
- W4381378010 date "2023-06-20" @default.
- W4381378010 modified "2023-09-24" @default.
- W4381378010 title "1757-P: δ-α Cell-to-Cell Interaction Modulates Pancreatic Islet Ca2+ Oscillation Modes" @default.
- W4381378010 doi "https://doi.org/10.2337/db23-1757-p" @default.
- W4381378010 hasPublicationYear "2023" @default.
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