Searchable abstracts of presentations at key conferences in endocrinology

ea0086p216 | Metabolism, Obesity and Diabetes | SFEBES2022

Simvastatin regulates Il10 gene expression in male and female murine macrophages

Sheridan Alanah , Wheeler-Jones Caroline , Gage Matthew C.

Statins are among the most widely prescribed medications worldwide, decreasing the risk of cardiovascular diseases by reducing cholesterol levels. However, statins also increase the risk of incident type 2 diabetes (T2D), disproportionately affecting women compared to men. Inflammation has emerged as a central factor underpinning T2D pathology, with macrophages playing a significant role. Statins have been found to influence macrophage inflammatory responses, and this has been...

ea0054oc3 | (1) | NuclearReceptors2018

Beyond ligand activation: Disrupting LXRα phosphorylation to reprogram diet induced transcriptomes and modulate progression of metabolic diseases

Gage† M , Becares† N , Louie R , Waddington K , Pineda-Torr I

The importance of the Liver X receptors (LXRs) as a critical modulators of metabolic homeostasis and immunity in health and disease has been mainly gleaned from studies evaluating the consequences of their pharmacological or genetic manipulation. We previously showed LXRα is phosphorylated upon cholesterol loading. It is however unknown whether post-translational modifications of the receptor modulate diet-induced responses and affect metabolic diseases with an important ...

ea0086p56 | Metabolism, Obesity and Diabetes | SFEBES2022

Macrophage-specific SHIP2 knockdown mice display sex-dependent liver steatosis

Chabrier Gwladys , Pineda-Torra Ines , Yuldasheva Nadira , Kearney Mark , Gage Matthew

Background: Non-alcoholic fatty liver disease (NAFLD) is a spectrum of progressive liver diseases driven in part by macrophages, occurring in the absence of excessive alcohol consumption that ranges from simple steatosis to non-alcoholic steato-hepatitis (NASH), ultimately progressing to fibrosis/cirrhosis and hepatocellular carcinoma. NAFLD is associated with insulin resistance and confers an increased risk of cardiovascular disease. Pre-menopausal women are protected against...

ea0094op2.1 | Metabolism, Obesity and Diabetes | SFEBES2023

Insulin resistance in macrophages impacts cholesterol biosynthesis and interferon gene expression and reduces foam cell formation capacity

Chabrier Gwladys , Pineda-Torra Ines , Hobson Sam , Yuldasheva Nadira , Kearney Mark , Schurmans Stephane , Gage Matthew

Background: Insulin resistance and ageing are risk factors for the development of type 2 diabetes and atherosclerosis. Insulin signalling in macrophages affects their inflammatory responses and foam cell formation capacity, yet the mechanisms linking these remain unclear. Recent evidence has emerged linking macrophage lipid metabolism and inflammatory response such as an interferon-cholesterol pathway flux axis. Insulin has been shown to directly regulate chol...

ea0086p213 | Metabolism, Obesity and Diabetes | SFEBES2022

Differentially expressed genes in insulin resistant macrophages are shared across multiple diabetes associated morbidities

Goodhew Katie , Grammatopoulos Kyriakos , Jackson Amy , Makahamadze Ayanteh , Pineda-Torra Ines , Yuldasheva Nadira , Kearney Mark , Gage Matthew

Authors 1-4 contributed equally to this work.Background: Insulin resistance is the central defining feature of type 2 diabetes and increases with age. People with type 2 diabetes are at an increased risk of cardiovascular disease, non-alcoholic fatty liver disease (NAFLD), Alzheimer’s disease and arthritis. Macrophages are phagocytotic leukocytes which play a central role in the development of type 2 diabetes and the chronic inflammatory di...

ea0019p140 | Diabetes, Metabolism and Cardiovascular | SFEBES2009

Heterozygous knockout of the insulin-like growth factor 1 receptor in mice leads to impaired glucose tolerance, enhanced insulin sensitivity and increased endothelial basal nitric oxide production

Abbas A , Imrie H , Viswambharan H , Rajwani A , Kahn M , Cubbon R , Gage M , Wheatcroft S , Grant P , Kearney M

Introduction: Insulin-like growth factor 1 (IGF-1), acting via similar signalling pathways to insulin, enhances glucose uptake and nitric oxide (NO) production. Observational studies suggest a role for (IGF-1) in insulin resistance and cardiovascular disease. To investigate this further we used a murine model with heterozygous knockout of the IGF-1 receptor.Methods: Metabolic tolerance tests were performed in vivo on unanaesthetised mice, heterozy...