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Finding new target to modulate food intake

"Obesity is a major burden to public health as it increases the risk of several chronic diseases, like diabetes, cardiovascular diseases, musculoskeletal disorders or some cancers. Energy homeostasis is centrally regulated by the... ver más

30/09/2025

ULIEGE

176K€

Presupuesto del proyecto: 176K€

Líder del proyecto

UNIVERSITE DE LIEGE No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2023-03-31

HORIZON-MSCA-2022-PF-01-01: MSCA Postdoctoral Fellowships 2022 ExpectedOutcome:

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ULIEGE

175.92K€ | Lider

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Duración del proyecto: 29 meses Fecha Inicio: 2023-03-31
Fecha Fin: 2025-09-30

Líder del proyecto

UNIVERSITE DE LIEGE No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 176K€

Descripción del proyecto "Obesity is a major burden to public health as it increases the risk of several chronic diseases, like diabetes, cardiovascular diseases, musculoskeletal disorders or some cancers. Energy homeostasis is centrally regulated by the hypothalamus where the arcuate nucleus (ARC) orchestrates feeding behaviors and energy balance. Two neuronal populations of the ARC are considered as the first-order neurons mediating the effects of various signals such as leptin and insulin, the orexigenic neuropeptide (NP)Y/Agouti-related peptide (AgRP) neurons and the anorexigenic pro-opiomelanocortin (POMC)/Amphetamine-regulated transcript (CART) neurons. Leptin is an adipocyte-secreted peptidic hormone that inhibits food intake and regulates body weight. Nearly in all forms of obesity, circulating levels of leptin increase but fail to suppress food intake and body weight. This condition has been identified as ""leptin resistance"". G protein-coupled receptors (GPCRs) are the largest family of membrane proteins and a notoriously successful source of drug targets. However, many GPCRs are understudied or even orphans meaning they have no known ligands. Despite our knowledge of the principal circuits regulating feeding, satiety, hunger and energy expenditure, we have been unable to deliver effective drugs targeting these systems. The failure in targeting the melanocortin pathways comes out partly from an incomplete understanding of leptin action, especially leptin resistance, at the central level. Here, we propose to investigate the interplay between the signaling of orphan GPCR and leptin receptor in leptin sensitive cells of the arcuate nucleus. To do so, we will use conditional knockout animals and pharmacological modulators. We will measure various metabolic parameters including weight and food intake with the Comprehensive Laboratory Animal Monitoring System (CLAMS). We will also establish hypothalamic cell cultures in which we will address the impact of G protein signaling on leptin."

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