Nutrient metabolism, subcellular redox state, and oxidative stress in pancreatic islets and β-cells

LP Roma, JC Jonas - Journal of molecular biology, 2020 - Elsevier
Insulin-secreting pancreatic β-cells play a critical role in blood glucose homeostasis and the
development of type 2 diabetes (T2D) in the context of insulin resistance. Based on data …

[HTML][HTML] From isles of Königsberg to islets of Langerhans: examining the function of the endocrine pancreas through network science

A Stožer, M Šterk, E Paradiž Leitgeb… - Frontiers in …, 2022 - frontiersin.org
Islets of Langerhans are multicellular microorgans located in the pancreas that play a central
role in whole-body energy homeostasis. Through secretion of insulin and other hormones …

[HTML][HTML] A role and mechanism for redox sensing by SENP1 in β-cell responses to high fat feeding

H Lin, K Suzuki, N Smith, X Li, L Nalbach… - Nature …, 2024 - nature.com
Pancreatic β-cells respond to metabolic stress by upregulating insulin secretion, however
the underlying mechanisms remain unclear. Here we show, in β-cells from overweight …

Mitochondrial Superoxide Production Decreases on Glucose-Stimulated Insulin Secretion in Pancreatic β Cells Due to Decreasing Mitochondrial Matrix NADH/NAD+ …

L Plecitá-Hlavatá, H Engstová… - Antioxidants & redox …, 2020 - liebertpub.com
Aims: Glucose-stimulated insulin secretion (GSIS) in pancreatic β cells was expected to
enhance mitochondrial superoxide formation. Hence, we elucidated relevant redox …

Nrf2 activation protects mouse beta cells from glucolipotoxicity by restoring mitochondrial function and physiological redox balance

J Schultheis, D Beckmann, D Mulac… - Oxidative medicine …, 2019 - Wiley Online Library
Influencing the redox balance of pancreatic beta cells could be a promising strategy for the
treatment of diabetes. Nuclear factor erythroid 2p45‐related factor 2 (Nrf2) is present in beta …

Transient NADPH oxidase 2-dependent H2O2 production drives early palmitate-induced lipotoxicity in pancreatic islets

EA Vilas-Boas, L Nalbach, E Ampofo… - Free Radical Biology …, 2021 - Elsevier
Modern lifestyles, including lack of physical activity and poor nutritional habits, are driving
the rapidly increasing prevalence of obesity and type 2 diabetes. Increased levels of free …

Endothelial Notch signaling controls insulin transport in muscle

SS Hasan, M Jabs, J Taylor, L Wiedmann… - EMBO molecular …, 2020 - embopress.org
The role of the endothelium is not just limited to acting as an inert barrier for facilitating blood
transport. Endothelial cells (EC s), through expression of a repertoire of angiocrine …

[HTML][HTML] Oxidative stress in pancreatic alpha and beta cells as a selection criterion for biocompatible biomaterials

MM Sthijns, MJ Jetten, SG Mohammed, SMH Claessen… - Biomaterials, 2021 - Elsevier
The clinical success rate of islet transplantation, namely independence from insulin
injections, is limited by factors that lead to graft failure, including inflammation, acute …

[HTML][HTML] Genetically Encoded Biosensors to Monitor Intracellular Reactive Oxygen and Nitrogen Species and Glutathione Redox Potential in Skeletal Muscle Cells

E Fernández-Puente, J Palomero - International Journal of Molecular …, 2021 - mdpi.com
Reactive oxygen and nitrogen species (RONS) play an important role in the
pathophysiology of skeletal muscle and are involved in the regulation of intracellular …

[HTML][HTML] Emerging roles of metallothioneins in beta cell pathophysiology: beyond and above metal homeostasis and antioxidant response

M Bensellam, DR Laybutt, JC Jonas - Biology, 2021 - mdpi.com
Simple Summary Defective insulin secretion by pancreatic beta cells is key for the
development of type 2 diabetes but the precise mechanisms involved are poorly understood …