Journal
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR AND CELL BIOLOGY OF LIPIDS
Volume 1841, Issue 12, Pages 1691-1699Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bbalip.2014.09.003
Keywords
Chemerin; UCP1; Non-shivering thermogenesis; High-fat diet; Cafeteria diet
Funding
- Swedish Research Council
- European DIABAT consortium
- Knut and Alice Wallenberg Foundation
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Based on results from a signal sequence trap, we investigated chemerin gene expression in brown adipose tissue. Male NMRI mice were exposed to 30, 22 or 4 degrees C for 3 weeks, or were fed control (chow) diet, cafeteria diet or high-fat diet at thermoneutrality for the same time. In brown adipose tissue, cold acclimation strongly diminished chemerin gene expression, whereas obesogenic diets augmented expression. Qualitatively, changes in expression were paralleled in brite/beige adipose tissues (e.g. inguinal), whereas white adipose tissue (epididymal) and muscle did not react to these cues. Changes in tissue expression were not directly paralleled by alterations in plasma levels. Both these intact animal studies and brown adipocyte cell culture studies indicated that the gene expression regulation was not congruent with a sympathetic/adrenergic control. The data are discussed in relation to suggested endocrine, paracrine and autocrine effects of chemerin. (C) 2014 Elsevier B.V. All rights reserved.
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