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Keipert, S.* ; Gaudry, M.J.* ; Kutschke, M.* ; Keuper, M.* ; Dela Rosa, M.A.S.* ; Cheng, Y. ; Monroy Kuhn, J.M. ; Laterveer, R.* ; Cotrim, C.A.* ; Giere, P.* ; Perocchi, F. ; Feederle, R. ; Crichton, P.G.* ; Lutter, D. ; Jastroch, M.*

Two-stage evolution of mammalian adipose tissue thermogenesis.

Science 384, 1111-1117 (2024)
Publ. Version/Full Text DOI PMC
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
Brown adipose tissue (BAT) is a heater organ that expresses thermogenic uncoupling protein 1 (UCP1) to maintain high body temperatures during cold stress. BAT thermogenesis is considered an overarching mammalian trait, but its evolutionary origin is unknown. We show that adipose tissue of marsupials, which diverged from eutherian mammals ~150 million years ago, expresses a nonthermogenic UCP1 variant governed by a partial transcriptomic BAT signature similar to that found in eutherian beige adipose tissue. We found that the reconstructed UCP1 sequence of the common eutherian ancestor displayed typical thermogenic activity, whereas therian ancestor UCP1 is nonthermogenic. Thus, mammalian adipose tissue thermogenesis may have evolved in two distinct stages, with a prethermogenic stage in the common therian ancestor linking UCP1 expression to adipose tissue and thermal stress. We propose that in a second stage, UCP1 acquired its thermogenic function specifically in eutherians, such that the onset of mammalian BAT thermogenesis occurred only after the divergence from marsupials.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Uncoupling Protein-1; Identification; Nucleotides; Slc25; Ucp1; Fat
ISSN (print) / ISBN 0036-8075
e-ISSN 1095-9203
Journal Science
Quellenangaben Volume: 384, Issue: 6700, Pages: 1111-1117 Article Number: , Supplement: ,
Publisher American Association for the Advancement of Science (AAAS)
Publishing Place 1200 New York Ave, Nw, Washington, Dc 20005 Usa
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Institute of Diabetes and Obesity (IDO)
CF Monoclonal Antibodies (CF-MAB)
Grants Wenner-Gren Foundation
Vetenskapsradet
Novo Nordisk Fonden