Porter 2016 Cell Metab

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Porter C, Herndon DN, Chondronikola M, Chao T, Annamalai P, Bhattarai N, Saraf MK, Capek KD, Reidy PT, Daquinag AC, Kolonin MG, Rasmussen BB, Borsheim E, Toliver-Kinsky T, Sidossis LS (2016) Human and mouse brown adipose tissue mitochondria have comparable UCP1 function. Cell Metab 24:246-55.

» PMID: 27508873

Porter C, Herndon DN, Chondronikola M, Chao T, Annamalai P, Bhattarai N, Saraf MK, Capek KD, Reidy PT, Daquinag AC, Kolonin MG, Rasmussen BB, Borsheim E, Toliver-Kinsky T, Sidossis LS (2016) Cell Metab

Abstract: Brown adipose tissue (BAT) plays an important role in mammalian thermoregulation. The component of BAT mitochondria that permits this function is the inner membrane carrier protein uncoupling protein 1 (UCP1). To the best of our knowledge, no studies have directly quantified UCP1 function in human BAT. Further, whether human and rodent BAT have comparable thermogenic function remains unknown. We employed high-resolution respirometry to determine the respiratory capacity, coupling control, and, most importantly, UCP1 function of human supraclavicular BAT and rodent interscapular BAT. Human BAT was sensitive to the purine nucleotide GDP, providing the first direct evidence that human BAT mitochondria have thermogenically functional UCP1. Further, our data demonstrate that human and rodent BAT have similar UCP1 function per mitochondrion. These data indicate that human and rodent BAT are qualitatively similar in terms of UCP1 function.

Copyright © 2016 Elsevier Inc. All rights reserved.


O2k-Network Lab: US TX Galveston Porter C, US AR Little Rock Borsheim E


Labels: MiParea: Respiration, Comparative MiP;environmental MiP 


Organism: Human, Mouse  Tissue;cell: Skeletal muscle, Fat  Preparation: Permeabilized tissue  Enzyme: Uncoupling protein 

Coupling state: LEAK, OXPHOS, ET  Pathway: F, N, NS, Other combinations  HRR: Oxygraph-2k 

2016-10