Brown and white adipose tissues: intrinsic differences in gene expression and response to cold exposure in mice

Rosello, M., Kaforou, M., Frontini, A., Okolo, A., Chan, Y.-W., Nikolopoulou, E., Millership, S., Fenech, M.E., MacIntyre, D., Turner, J.O., Moore, J.D., Blackburn, E., Gullick, W.J., Cinti, S., Montana, G., Parker, M.G. and Christian, M. ORCID: 0000-0002-1616-4179, 2014. Brown and white adipose tissues: intrinsic differences in gene expression and response to cold exposure in mice. American Journal of Physiology-Endocrinology and Metabolism, 306 (8), E945-E964. ISSN 0193-1849

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Abstract

Brown adipocytes dissipate energy, whereas white adipocytes are an energy storage site. We explored the plasticity of different white adipose tissue depots in acquiring a brown phenotype by cold exposure. By comparing cold-induced genes in white fat to those enriched in brown compared with white fat, at thermoneutrality we defined a "brite" transcription signature. We identified the genes, pathways, and promoter regulatory motifs associated with "browning," as these represent novel targets for understanding this process. For example, neuregulin 4 was more highly expressed in brown adipose tissue and upregulated in white fat upon cold exposure, and cell studies showed that it is a neurite outgrowth-promoting adipokine, indicative of a role in increasing adipose tissue innervation in response to cold. A cell culture system that allows us to reproduce the differential properties of the discrete adipose depots was developed to study depot-specific differences at an in vitro level. The key transcriptional events underpinning white adipose tissue to brown transition are important, as they represent an attractive proposition to overcome the detrimental effects associated with metabolic disorders, including obesity and type 2 diabetes.

Item Type: Journal article
Publication Title: American Journal of Physiology-Endocrinology and Metabolism
Creators: Rosello, M., Kaforou, M., Frontini, A., Okolo, A., Chan, Y.-W., Nikolopoulou, E., Millership, S., Fenech, M.E., MacIntyre, D., Turner, J.O., Moore, J.D., Blackburn, E., Gullick, W.J., Cinti, S., Montana, G., Parker, M.G. and Christian, M.
Publisher: American Physiological Society
Date: 2014
Volume: 306
Number: 8
ISSN: 0193-1849
Identifiers:
NumberType
10.1152/ajpendo.00473.2013DOI
Rights: Copyright © 2014 the American Physiological Society. Licensed under Creative Commons Attribution CC-BY 3.0 : the American Physiological Society.
Divisions: Schools > School of Science and Technology
Depositing User: Linda Sullivan
Date Added: 08 Aug 2019 11:53
Last Modified: 08 Aug 2019 11:53
URI: http://irep.ntu.ac.uk/id/eprint/37195

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