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Sci Rep. 2016 Dec 6;6:38579. doi: 10.1038/srep38579.

An ERβ agonist induces browning of subcutaneous abdominal fat pad in obese female mice.

Author information

1
Center for Nuclear Receptors and Cell Signaling, Department of Biology and Biochemistry, University of Houston, Houston, TX 77204, USA.
2
Center for Nephrology and Urology, Department of Physiology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, 518060, China.
3
Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China.
4
Center for Innovative Medicine, Department of Biosciences and Nutrition, Karolinska Institutet, Novum, 14186 Stockholm, Sweden.

Abstract

Estrogen, via estrogen receptor alpha (ERα), exerts several beneficial effects on metabolism and energy homeostasis by controlling size, enzymatic activity and hormonal content of adipose tissue. The actions of estrogen on sympathetic ganglia, which are key players in the browning process, are less well known. In the present study we show that ERβ influences browning of subcutaneous adipose tissue (SAT) via its actions both on sympathetic ganglia and on the SAT itself. A 3-day-treatment with a selective ERβ agonist, LY3201, induced browning of SAT in 1-year-old obese WT and ERα-/- female mice. Browning was associated with increased expression of ERβ in the nuclei of neurons in the sympathetic ganglia, increase in tyrosine hydroxylase in both nerve terminals in the SAT and sympathetic ganglia neurons and an increase of β3-adrenoceptor in the SAT. LY3201 had no effect on browning in young female or male mice. In the case of young females browning was already maximal while in males there was very little expression of ERβ in the SAT and very little expression of the β3-adrenoceptor. The increase in both sympathetic tone and responsiveness of adipocytes to catecholamines reveals a novel role for ERβ in controlling browning of adipose tissue.

PMID:
27922125
PMCID:
PMC5138613
DOI:
10.1038/srep38579
[Indexed for MEDLINE]
Free PMC Article

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