Title :

Tanycytic networks mediate energy balance by feeding lactate to glucose-insensitive POMC neurons.

Author(s) :

Lhomme, Tori [Auteur]
Lille Neurosciences & Cognition - U 1172 [LilNCog]
Clasadonte, Jerome [Auteur]
Lille Neurosciences & Cognition - U 1172 [LilNCog]
Imbernon, Monica [Auteur]
Lille Neurosciences & Cognition - U 1172 [LilNCog]
Fernandois, Daniela [Auteur]
Lille Neurosciences & Cognition - U 1172 [LilNCog]
Sauve, Florent [Auteur]
Lille Neurosciences & Cognition - U 1172 [LilNCog]
Caron, Emilie [Auteur]
Lille Neurosciences & Cognition (LilNCog) - U 1172
Lima, N. [Auteur]
Heras, V. [Auteur]
Martinez Corral, Ines [Auteur]
Lille Neurosciences & Cognition - U 1172 [LilNCog]
Müller-Fielitz, H. [Auteur]
Rasika, Sowmyalakshmi [Auteur]
Lille Neurosciences & Cognition - U 1172 [LilNCog]
Schwaninger, M. [Auteur]
Nogueiras, R. [Auteur]
Prevot, Vincent [Auteur]
Lille Neurosciences & Cognition (LilNCog) - U 1172

Journal title :

The Journal of clinical investigation

Volume number :

131

Pages :

e140521

Publisher :

American Society for Clinical Investigation

Publication date :

2021-07-31

ISSN :

1558-8238

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [en]

Hypothalamic glucose sensing enables an organism to match energy expenditure and food intake to circulating levels of glucose, the main energy source of the brain. Here, we established that tanycytes of the arcuate nucleus ...
Show more >Hypothalamic glucose sensing enables an organism to match energy expenditure and food intake to circulating levels of glucose, the main energy source of the brain. Here, we established that tanycytes of the arcuate nucleus of the hypothalamus, specialized glia that line the wall of the third ventricle, convert brain glucose supplies into lactate that they transmit through monocarboxylate transporters to arcuate proopiomelanocortin neurons, which integrate this signal to drive their activity and to adapt the metabolic response to meet physiological demands. Furthermore, this transmission required the formation of extensive connexin-43 gap junction–mediated metabolic networks by arcuate tanycytes. Selective suppression of either tanycytic monocarboxylate transporters or gap junctions resulted in altered feeding behavior and energy metabolism. Tanycytic intercellular communication and lactate production are thus integral to the mechanism by which hypothalamic neurons that regulate energy and glucose homeostasis efficiently perceive alterations in systemic glucose levels as a function of the physiological state of the organism.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
Inserm
CHU Lille

Collections :

• Lille Neurosciences & Cognition (LilNCog) - U 1172

Submission date :

2024-01-16T01:57:40Z
2024-10-30T10:01:18Z