Searchable abstracts of presentations at key conferences in endocrinology

ea0063oc6.3 | Obesity | ECE2019

Role of hypothalamic bile acid-TGR5 signaling in the regulation of energy balance

Castellanos Ashley , Quevedo Omar Guzman , Fenelon Valerie , Zizzari Philippe , Clark Samantha , Dupuy Nathalie , Bellocchio Luigi , Marsicano Giovanni , Cota Daniela

Bile acids (BA) are cholesterol-derived molecules that are mostly known for their involvement in lipid digestion and absorption. Recent evidence recognizes them as metabolic integrators able to reduce body weight (BW), increase energy expenditure (EE) and improve glycemic control by activating their specific receptor, the Takeda G protein-coupled receptor 5 (TGR5) in peripheral organs. These outcomes have increased importance in the context of diet-induced obesity and associat...

ea0081oc10.3 | Oral Communications 10: Diabetes, Obesity, Metabolism and Nutrition 3 | ECE2022

Glucose-dependent insulin secretion is regulated by mitochondrial-associated cannabinoid receptor type 1 (mtCB1)

Allard Camille , Zizzari Philippe , Clark Samantha , Dupuy Nathalie , Bermudez-Silva Francisco-Javier , Delgado Concepcion Lillo , Bellocchio Luigi , Marsicano Giovanni , Quarta Carmelo , Cota Daniela

Type 2 diabetes is among the most prevalent chronic diseases worldwide. Further research is needed to identify new mechanisms that may help preserve the function of insulin-secreting pancreatic β-cells. The cannabinoid receptors type 1 (CB1) and their endogenous ligands, endocannabinoids, exert a key role in regulating of glucose homeostasis, β-cells function, and insulin secretion. Intriguingly, CB1 is not only located at the plasma membrane (pmCB1), but also at the...

ea0081p671 | Pituitary and Neuroendocrinology | ECE2022

Targeting invasive pituitary adenomas: in vitro studies and in vivo investigations in a murine model of invasive pituitary tumors obtained by orthotopic pituitary GC cells injection

Chasseloup Fanny , Lefevre Etienne , Dormoy Alexandre , Ladurelle Nataly , Mignot Tiphaine , Janot Clement , Hage Mirella , Viengchareun Say , Zizzari Philippe , Chanson Philippe , Buchfelder Michael , Kamenicky Peter

Context: Surgical removal is the primary treatment option for pituitary adenomas. However, pituitary surgery is frequently incomplete because of invasion of extrasellar cerebral structures, notably, of the cavernous sinus. Our objective was to study the molecular basis of the cavernous sinus invasion by pituitary adenomas.Methods: We analyzed a tissue collection of 19 invasive pituitary adenomas with a sample from the intrasellar portion and a sample fro...

ea0070ep169 | Diabetes, Obesity, Metabolism and Nutrition | ECE2020

Peripheral cannabinoid–1 receptor blockade potentiates the anti–obesity and anti–diabetic effects of GLP–1 mimetics

Zizzari Philippe , He Rongjun , Bellocchio Luigi , Allard Camille , Clark Samantha , Thierry Leste–lasserre , Marsicano Giovanni , Perez–Tilve Diego , Finan Brian , Cota Daniela , Quarta Carmelo

Obesity and type–2 diabetes (T2D) represent a global health crisis. However, only a few, and often sub–effective pharmacological tools are available to treat these disorders. Though beneficial for glycemic control, GLP–1 receptor (GLP–1R) agonists show scarce weight–lowering and insulin–sensitizing efficacy.New molecules able to selectively block the activity of the cannabinoid receptor type–1 (CB1R) in periphera...