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Updated: Jul 17, 2025
Differentiation and Imaging of Brown Adipocytes from the Stromal Vascular Fraction of Interscapular Adipose Tissue from Newborn Mice
Published on: February 3, 2023
Control of murine brown adipocyte development by GATA6.
Seoyoung Jun1, Anthony R Angueira2, Ethan C Fein2
1Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Diabetes, Obesity & Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Researchers identified key cells and a crucial transcription factor, GATA6, essential for brown adipose tissue (BAT) development. This finding clarifies the origins of brown fat progenitor cells and their role in thermogenesis and obesity protection.
Area of Science:
- Developmental biology
- Cell biology
- Metabolic research
Background:
- Brown adipose tissue (BAT) is vital for thermogenesis, protecting against hypothermia and obesity.
- The precise identity of embryonic brown fat progenitor cells and regulators of adipogenic commitment remain incompletely understood.
Purpose of the Study:
- To identify embryonic progenitor and transitional cells involved in brown adipose tissue development.
- To elucidate the regulatory mechanisms governing adipogenic commitment in brown fat lineage.
Main Methods:
- Single-cell gene expression analyses of mesenchymal cells during mouse embryogenesis.
- Immunostaining and lineage-tracing studies.
- Genetic manipulation (Gata6 deletion) in the brown fat lineage.
Main Results:
- Identification of Dpp4+ cells emerging at the onset of adipogenic commitment, constituting BAT fascia with minor adipocyte progenitor contribution.
- Identification of the transcription factor GATA6 as a marker for brown adipogenic progenitor cells.
- Demonstration that Gata6 deletion in the brown fat lineage leads to a significant loss of BAT.
Conclusions:
- Progenitor and transitional cell populations within the brown adipose lineage have been identified.
- GATA6 plays a critical and essential role in the development of brown adipose tissue.
- These findings advance our understanding of BAT development and its potential therapeutic implications for metabolic disorders.
