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Biochem Biophys Res Commun. 2015 Oct 16;466(2):247-53. doi: 10.1016/j.bbrc.2015.09.018. Epub 2015 Sep 8.

Curcumin promotes browning of white adipose tissue in a norepinephrine-dependent way.

Author information

1
State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China.
2
Department of Psychology, Fourth Military Medical University, Xi'an 710032, PR China.
3
Department of Neurobiology and Collaborative Innovation Center for Brain Science, School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, PR China.
4
State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China; Department of Pharmacology, Xi'an Medical University, Xi'an 710021, PR China.
5
Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, PR China.
6
State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China. Electronic address: leixiaoy@fmmu.edu.cn.
7
State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China. Electronic address: luzfliuq@fmmu.edu.cn.

Abstract

Brown adipose tissue converts energy from food into heat via the mitochondrial uncoupling protein UCP1, defending against cold. In some conditions, inducible 'brown-like' adipocytes, also known as beige adipocytes, can develop within white adipose tissue (WAT). These beige adipocytes have characteristics similar to classical brown adipocytes and thus can burn lipids to produce heat. In the current study, we demonstrated that curcumin (50 or 100 mg/kg/day) decreased bodyweight and fat mass without affecting food intake in mice. We further demonstrated that curcumin improves cold tolerance in mice. This effect was possibly mediated by the emergence of beige adipocytes and the increase of thermogenic gene expression and mitochondrial biogenesis in inguinal WAT. In addition, curcumin promotes β3AR gene expression in inguinal WAT and elevates the levels of plasma norepinephrine, a hormone that can induce WAT browning. Taken together, our data suggest that curcumin can potentially prevent obesity by inducing browning of inguinal WAT via the norepinephrine-β3AR pathway.

KEYWORDS:

Curcumin; Plasma norepinephrine; Thermogenesis; Weight loss; White adipose tissue browning

PMID:
26362189
DOI:
10.1016/j.bbrc.2015.09.018
[Indexed for MEDLINE]

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