Differential Effects of Cold Exposure on Gene Expression Profiles in White Versus Brown Adipose Tissue

Author: Watanabe Masahiro   Yamamoto Takenori   Yamamoto Atsushi   Obana Eriko   Niiyama Kanami   Hada Takuya   Ooie Toshihiko   Kataoka Masatoshi   Hori Tomoshige   Houchi Hitoshi   Shinohara Yasuo  

Publisher: Humana Press, Inc

ISSN: 0273-2289

Source: Applied Biochemistry and Biotechnology, Vol.165, Iss.2, 2011-09, pp. : 538-547

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Abstract

The thermogenic function of brown adipose tissue (BAT) is known to be markedly elevated when animals are exposed to the cold, and intensive studies have been carried out to understand the molecular basis enabling effective thermogenesis in cold-exposed animals. In this study, we used microarray analysis to examine the effects of cold exposure of animals on their gene expression profiles in white adipose tissue (WAT), which seems to function as a counterpart tissue of BAT. The results indicate that the effects of cold exposure on the gene expression profiles of WAT were much more moderate than the effects on those of BAT. Possible reasons for the different responses of BAT and WAT to cold exposure are discussed.

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