Reference

Nat Commun. 2016 Nov 17; 7: 13479.naturensp 420

Authors

Tania Quesada-López, Rubén Cereijo, Jean-Valery Turatsinze, Anna Planavila, Montserrat Cairó, Aleix Gavaldà-Navarro, Marion Peyrou, Ricardo Moure, Roser Iglesias, Marta Giralt, Decio L. Eizirik, and Francesc Villarroya

Abstract

The thermogenic activity of brown adipose tissue (BAT) and browning of white adipose tissue are important components of energy expenditure. Here we show that GPR120, a receptor for polyunsaturated fatty acids, promotes brown fat activation. Using RNA-seq to analyse mouse BAT transcriptome, we find that the gene encoding GPR120 is induced by thermogenic activation. We further show that GPR120 activation induces BAT activity and promotes the browning of white fat in mice, whereas GRP120-null mice show impaired cold-induced browning. Omega-3 polyunsaturated fatty acids induce brown and beige adipocyte differentiation and thermogenic activation, and these effects require GPR120. GPR120 activation induces the release of fibroblast growth factor-21 (FGF21) by brown and beige adipocytes, and increases blood FGF21 levels. The effects of GPR120 activation on BAT activation and browning are impaired in FGF21-null mice and cells. Thus, the lipid sensor GPR120 activates brown fat via a mechanism that involves induction of FGF21.

Description

El trabajo demuestra que el receptor de ácidos grasos poliinsaturados, GPR120, promueve la activación de la grasa parda. Dicha activación es mediada en gran parte por la inducción y secreción del factor hormonal FGF21, causándose un incremento en la oxidación de glucosa y la respiración en adipocitos marrones y beige. Un potencial uso farmacológico o nutricional de esta vía podría ser útil para la prevención de la obesidad y diabetes tipo II.

 

FotografíaDeGrupo TAM

 

REFERENCIA DEL GRUPO INVESTIGADOR

El objetivo del grupo de investigación es identificar los principales actores moleculares en el control del metabolismo energético en salud y enfermedad, con especial énfasis en el control de la adiposidad. Se estudian los mecanismos moleculares implicados en la diferenciación de células especializadas, así como sus funciones metabólicas y endocrinas utilizando modelos celulares, animales y en pacientes con patologías metabólicas como obesidad, diabetes y lipodistrofias.

Descárgate este artículo aquí.

Did you publish an interesting article recently?

Send it through our application form and we will contact you. Age limit: 32.

The selected articles will participate at the Award to the best article of young people of the SEBBM which will be given during SEBBM conference, that will take place at Spain (free registration, travel and accommodation).

More articles of the month

Small molecule inhibits α-synuclein aggregation, disrupts amyloid fibrils, and prevents degeneration of dopaminergic neurons

02-01-2019

Parkinson's disease (PD) is characterized by a progressive loss of dopaminergic neurons, a process that current therapeutic approaches cannot prevent. In PD, the typical pathological hallmark is the accumulation of...

Read more

Dynamic acetylation of cytosolic phosphoenolpyruvate carboxykinase toggles enzyme activity between gluconeogenic and anaplerotic reactions

01-12-2018

Cytosolic phosphoenolpyruvate carboxykinase (PCK1) is considered a gluconeogenic enzyme; however, its metabolic functions and regulatory mechanisms beyond gluconeogenesis are poorly understood. Here, we describe that dynamic acetylation of PCK1 interconverts...

Read more

The Helicase PIF1 Facilitates Resection overSequences Prone to Forming G4 Structures

02-11-2018

DNA breaks are complex lesions that can be repaired either by non-homologous end joining (NHEJ) or by homologous recombination (HR). The decision between these two routes of DNA repair is...

Read more

Preventing loss of mechanosensation by the nuclear membranes of alveolar cells reduces lung injury in mice during mechanical ventilation

01-10-2018

The nuclear membrane acts as a mechanosensor that drives cellular responses following changes in the extracellular environment. Mechanically ventilated lungs are exposed to an abnormally high mechanical load that may...

Read more

Oxidative stress is tightly regulated by cytochrome c phosphorylation and respirasome factors in mitochondria

03-09-2018

Respiratory cytochrome c has been found to be phosphorylated at tyrosine 97 in the postischemic brain upon neuroprotective insulin treatment, but how such posttranslational modification affects mitochondrial metabolism is unclear...

Read more

STAT3 labels a subpopulation of reactive astrocytes required for brain metastasis

01-08-2018

The brain microenvironment imposes a particularly intense selective pressure on metastasis-initiating cells, but successful metastases bypass this control through mechanisms that are poorly understood. Reactive astrocytes are key components of...

Read more

A broad atlas of somatic hypermutation allows prediction of activation-induced deaminase targets

02-07-2018

Activation-induced deaminase (AID) initiates antibody diversification in germinal center (GC) B cells through the deamination of cytosines on immunoglobulin genes. AID can also target other regions in the genome, triggering...

Read more

Deciphering the Dynamic Transcriptional and Post-transcriptional Networks of Macrophages in the Healthy Heart and after Myocardial Injury

01-06-2018

Our group is interested in the behavior and transcriptional regulation of macrophages in the context of complex disease environments. We have generated a whole transcriptome dataset (mRNA, miRNA, and lincRNA)...

Read more

Synaptic activity‐induced glycolysis facilitates membrane lipid provision and neurite outgrowth

01-05-2018

La formación de nuevas neuritas es un proceso clave para el correcto desarrollo del sistema nervioso. El crecimiento neurítico requiere la generación de nuevas membranas. No obstante, los cambios metabólicos...

Read more

Mechanisms of bacterial membrane permeabilization by crotalicidin (Ctn) and its fragment Ctn(15-34), antimicrobial peptides from rattlesnake venom.

04-04-2018

La crotalicidina, un péptido del veneno de una serpiente de cascabel, tiene entre otras propiedades una potente acción antimicrobiana. Un fragmento resultante de la disección racional del péptido nativo presenta...

Read more

Protector Members