| Autor: |
Alicia Mayeuf-Louchart, Steve Lancel, Yasmine Sebti, Benoit Pourcet, Anne Loyens, Stéphane Delhaye, Christian Duhem, Justine Beauchamp, Lise Ferri, Quentin Thorel, Alexis Boulinguiez, Mathilde Zecchin, Julie Dubois-Chevalier, Jérôme Eeckhoute, Logan T. Vaughn, Peter J. Roach, Christian Dani, Bartholomew A. Pederson, Stéphane D. Vincent, Bart Staels, Hélène Duez |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Cell Reports, Vol 29, Iss 6, Pp 1410-1418.e6 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2211-1247 |
| DOI: |
10.1016/j.celrep.2019.09.073 |
| Popis: |
Summary: Browning induction or transplantation of brown adipose tissue (BAT) or brown/beige adipocytes derived from progenitor or induced pluripotent stem cells (iPSCs) can represent a powerful strategy to treat metabolic diseases. However, our poor understanding of the mechanisms that govern the differentiation and activation of brown adipocytes limits the development of such therapy. Various genetic factors controlling the differentiation of brown adipocytes have been identified, although most studies have been performed using in vitro cultured pre-adipocytes. We investigate here the differentiation of brown adipocytes from adipose progenitors in the mouse embryo. We demonstrate that the formation of multiple lipid droplets (LDs) is initiated within clusters of glycogen, which is degraded through glycophagy to provide the metabolic substrates essential for de novo lipogenesis and LD formation. Therefore, this study uncovers the role of glycogen in the generation of LDs. : Lipid droplet formation is a major feature of brown adipocyte differentiation. Mayeuf-Louchart et al. characterize the different steps of brown adipocyte differentiation in the mouse embryo and report the essential role of glycogen production and degradation by glycophagy for lipid droplet biogenesis. Keywords: brown adipose tissue, adipocyte differentiation, lipid droplet biogenesis, lipid, glycogen, autophagy, glycophagy, embryonic development, adipocyte metabolism, BAT |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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