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Subcutaneous white adipocytes express a light sensitive signaling pathway mediated via a melanopsin/TRPC channel axis.

Abstract：

:Subcutaneous white adipose tissue (scWAT) is the major fat depot in humans and is a central player in regulating whole body metabolism. Skin exposure to UV wavelengths from sunlight is required for Vitamin D synthesis and pigmentation, although it is plausible that longer visible wavelengths that penetrate the skin may regulate scWAT function. In this regard, we discovered a novel blue light-sensitive current in human scWAT that is mediated by melanopsin coupled to transient receptor potential canonical cation channels. This pathway is activated at physiological intensities of light that penetrate the skin on a sunny day. Daily exposure of differentiated adipocytes to blue light resulted in decreased lipid droplet size, increased basal lipolytic rate and alterations in adiponectin and leptin secretion. Our results suggest that scWAT function may be directly under the influence of ambient sunlight exposure and may have important implications for our current understanding of adipocyte biology. (150 words).

journal_name

Sci Rep

journal_title

Scientific reports

authors

Ondrusova K,Fatehi M,Barr A,Czarnecka Z,Long W,Suzuki K,Campbell S,Philippaert K,Hubert M,Tredget E,Kwan P,Touret N,Wabitsch M,Lee KY,Light PE

doi

10.1038/s41598-017-16689-4

subject

Has Abstract

pub_date

2017-11-27 00:00:00

pages

16332

issue

1

issn

2045-2322

pii

10.1038/s41598-017-16689-4

journal_volume

7

pub_type

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