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The transcription factor Rfx3 regulates beta-cell differentiation, function, and glucokinase expression

Related publications (40)

Type 2 diabetes disrupts circadian orchestration of lipid metabolism and membrane fluidity in human pancreatic islets

Recent evidence suggests that circadian clocks ensure temporal orchestration of lipid homeostasis and play a role in pathophysiology of metabolic diseases in humans, including type 2 diabetes (T2D). Nevertheless, circadian regulation of lipid metabolism in ...

PUBLIC LIBRARY SCIENCE2022

Multipotent mesenchymal stromal cells derived from porcine exocrine pancreas improve insulin secretion from juvenile porcine islet cell clusters.

Sandrine Gerber, Luca Szabó, Léo Bühler

Neonatal and juvenile porcine islet cell clusters (ICC) present an unlimited source for islet xenotransplantation to treat type 1 diabetes patients. We isolated ICC from pancreata of 14 days old juvenile piglets and characterized their maturation by immuno ...

2021

In pancreatic islets from type 2 diabetes patients, the dampened circadian oscillators lead to reduced insulin and glucagon exocytosis

Daniel Sage

Circadian clocks operative in pancreatic islets participate in the regulation of insulin secretion in humans and, if compromised, in the development of type 2 diabetes (T2D) in rodents. Here we demonstrate that human islet alpha- and beta-cells that bear a ...

NATL ACAD SCIENCES2020

Targeting Mitochondrial Calcium Uptake with the Natural Flavonol Kaempferol, to Promote Metabolism/Secretion Coupling in Pancreatic beta-cells

Umberto De Marchi, Guillaume Jacot

Pancreatic beta-cells secrete insulin to lower blood glucose, following a meal. Maintenance of beta-cell function is essential to preventing type 2 diabetes. In pancreatic beta-cells, mitochondrial matrix calcium is an activating signal for insulin secreti ...

2020

Augmented mitochondrial energy metabolism is an early response to chronic glucose stress in human pancreatic beta cells

Loïc Dayon, Andreas Wiederkehr, Sofia Moco, Isabelle Chareyron

Aims/hypothesis In islets from individuals with type 2 diabetes and in islets exposed to chronic elevated glucose, mitochondrial energy metabolism is impaired. Here, we studied early metabolic changes and mitochondrial adaptations in human beta cells durin ...

2020

Role of metabolism and mitochondria during glucose sensing and glucose-induced dysfunction in human pancreatic beta-cells

Isabelle Chareyron

Glucose sensing and regulation of insulin secretion are the two main functions performed by the pancreatic beta-cell. Together these processes contribute to the tight control of blood glucose in our body. Compromising the ability of the beta-cells to prope ...

EPFL2019

Bioengineering strategies for inducing tolerance in autoimmune diabetes

Jeffrey Alan Hubbell, Steinunn Baekkeskov Hanahan, Edward Allen Phelps

Type 1 diabetes is an autoimmune disease marked by the destruction of insulin-producing beta cells in the pancreatic islets. Strategies to delay onset or prevent the autoimmune recognition of beta cell antigens or T cell-mediated killing of beta cells have ...

Elsevier Science Bv2017

Investigating the Biological Mechanisms underlying the Initiation of Autoimmunity against Beta Cell Antigens in Type 1 Diabetes

Chiara Cianciaruso

Type 1 diabetes (T1D) is an autoimmune disease characterized by circulating autoantibodies, lymphocytic infiltration of pancreatic islets of Langerhans, and cell-specific destruction of beta cells, leading to insulin deficiency and symptomatic hyperglycemi ...

EPFL2017

Multipotent mesenchymal stromal cells enhance insulin secretion from human islets via N-Cadherin interaction and prolong function of transplanted encapsulated islets in mice

Sandrine Gerber, Jutta Christine Wandrey, Redouan Mahou

Background: Multipotent mesenchymal stromal cells (MSC) enhance viability and function of islets of Langerhans. We aimed to examine the interactions between human MSC and human islets of Langerhans that influence the function of islets. Methods: Human MSC ...

Biomed Central Ltd2017

Encapsulation of Insulin-Secreting Cells Expressing a Genetically Encoded Fluorescent Calcium Indicator for Cell-Based Sensing In Vivo

Andreas Wiederkehr, Umberto De Marchi, Nicolas Bouche, Christophe Boss, Federico Sizzano, Mouna Conrad

The development of cell-based biosensors that give insight into cell and tissue function in vivo is an attractive technology for biomedical research. Here, the development of a cell line expressing a fluorescent calcium sensor for the study of beta-cell fu ...

Wiley2017

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