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The obesity-linked human lncRNA AATBC stimulates mitochondrial function in adipocytes

Abstract Adipocytes are critical regulators of metabolism and energy balance. While white adipocyte dysfunction is a hallmark of obesity-associated disorders, thermogenic adipocytes are linked to cardiometabolic health. As adipocytes dynamically adapt to environmental cues by functionally switching...

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Main Authors: Giroud, Maude (Author) , Kotschi, Stefan (Author) , Kwon, Yun (Author) , Le Thuc, Ophélia (Author) , Hoffmann, Anne (Author) , Gil-Lozano, Manuel (Author) , Karbiener, Michael (Author) , Higareda-Almaraz, Juan Carlos (Author) , Khani, Sajjad (Author) , Tews, Daniel (Author) , Fischer-Posovszky, Pamela (Author) , Sun, Wenfei (Author) , Dong, Hua (Author) , Ghosh, Adhideb (Author) , Wolfrum, Christian (Author) , Wabitsch, Martin (Author) , Virtanen, Kirsi A (Author) , Blüher, Matthias (Author) , Nielsen, Søren (Author) , Zeigerer, Anja (Author) , García-Cáceres, Cristina (Author) , Scheideler, Marcel (Author) , Herzig, Stephan (Author) , Bartelt, Alexander (Author)
Format: Article (Journal)
Language:English
Published: 9 October 2023
In: EMBO reports
Year: 2023, Volume: 24, Issue: 10, Pages: 1-19
ISSN:1469-3178
DOI:10.15252/embr.202357600
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.15252/embr.202357600
Verlag, kostenfrei, Volltext: https://www.embopress.org/doi/full/10.15252/embr.202357600
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Author Notes:Maude Giroud, Stefan Kotschi, Yun Kwon, Ophélia Le Thuc, Anne Hoffmann, Manuel Gil-Lozano, Michael Karbiener, Juan Carlos Higareda-Almaraz, Sajjad Khani, Daniel Tews, Pamela Fischer-Posovszky, Wenfei Sun, Hua Dong, Adhideb Ghosh, Christian Wolfrum, Martin Wabitsch, Kirsi A Virtanen, Matthias Blüher, Søren Nielsen, Anja Zeigerer, Cristina García-Cáceres, Marcel Scheideler, Stephan Herzig & Alexander Bartelt
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Summary:Abstract Adipocytes are critical regulators of metabolism and energy balance. While white adipocyte dysfunction is a hallmark of obesity-associated disorders, thermogenic adipocytes are linked to cardiometabolic health. As adipocytes dynamically adapt to environmental cues by functionally switching between white and thermogenic phenotypes, a molecular understanding of this plasticity could help improving metabolism. Here, we show that the lncRNA Apoptosis associated transcript in bladder cancer (AATBC) is a human-specific regulator of adipocyte plasticity. Comparing transcriptional profiles of human adipose tissues and cultured adipocytes we discovered that AATBC was enriched in thermogenic conditions. Using primary and immortalized human adipocytes we found that AATBC enhanced the thermogenic phenotype, which was linked to increased respiration and a more fragmented mitochondrial network. Expression of AATBC in adipose tissue of mice led to lower plasma leptin levels. Interestingly, this association was also present in human subjects, as AATBC in adipose tissue was inversely correlated with plasma leptin levels, BMI, and other measures of metabolic health. In conclusion, AATBC is a novel obesity-linked regulator of adipocyte plasticity and mitochondrial function in humans.
Item Description:Online veröffentlicht: 6 September 2023
Gesehen am 20.10.2023
Physical Description:Online Resource
ISSN:1469-3178
DOI:10.15252/embr.202357600

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