Norepinephrine triggers an immediate-early regulatory network response in primary human white adipocytes

J. Higareda Almaraz, M. Karbiener, M. Giroud, F. Pauler, T. Gerhalter, S. Herzig, M. Scheideler, BMC Genomics 19 (2018).

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Journal Article | Published | English
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Abstract
Background: Norepinephrine (NE) signaling has a key role in white adipose tissue (WAT) functions, including lipolysis, free fatty acid liberation and, under certain conditions, conversion of white into brite (brown-in-white) adipocytes. However, acute effects of NE stimulation have not been described at the transcriptional network level. Results: We used RNA-seq to uncover a broad transcriptional response. The inference of protein-protein and protein-DNA interaction networks allowed us to identify a set of immediate-early genes (IEGs) with high betweenness, validating our approach and suggesting a hierarchical control of transcriptional regulation. In addition, we identified a transcriptional regulatory network with IEGs as master regulators, including HSF1 and NFIL3 as novel NE-induced IEG candidates. Moreover, a functional enrichment analysis and gene clustering into functional modules suggest a crosstalk between metabolic, signaling, and immune responses. Conclusions: Altogether, our network biology approach explores for the first time the immediate-early systems level response of human adipocytes to acute sympathetic activation, thereby providing a first network basis of early cell fate programs and crosstalks between metabolic and transcriptional networks required for proper WAT function.
Publishing Year
Date Published
2018-11-03
Journal Title
BMC Genomics
Acknowledgement
This work was funded by the German Centre for Diabetes Research (DZD) and the Austrian Science Fund (FWF, P25729-B19).
Volume
19
Issue
1
IST-REx-ID

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Higareda Almaraz J, Karbiener M, Giroud M, et al. Norepinephrine triggers an immediate-early regulatory network response in primary human white adipocytes. BMC Genomics. 2018;19(1). doi:10.1186/s12864-018-5173-0
Higareda Almaraz, J., Karbiener, M., Giroud, M., Pauler, F., Gerhalter, T., Herzig, S., & Scheideler, M. (2018). Norepinephrine triggers an immediate-early regulatory network response in primary human white adipocytes. BMC Genomics, 19(1). https://doi.org/10.1186/s12864-018-5173-0
Higareda Almaraz, Juan, Michael Karbiener, Maude Giroud, Florian Pauler, Teresa Gerhalter, Stephan Herzig, and Marcel Scheideler. “Norepinephrine Triggers an Immediate-Early Regulatory Network Response in Primary Human White Adipocytes.” BMC Genomics 19, no. 1 (2018). https://doi.org/10.1186/s12864-018-5173-0.
J. Higareda Almaraz et al., “Norepinephrine triggers an immediate-early regulatory network response in primary human white adipocytes,” BMC Genomics, vol. 19, no. 1, 2018.
Higareda Almaraz J, Karbiener M, Giroud M, Pauler F, Gerhalter T, Herzig S, Scheideler M. 2018. Norepinephrine triggers an immediate-early regulatory network response in primary human white adipocytes. BMC Genomics. 19(1).
Higareda Almaraz, Juan, et al. “Norepinephrine Triggers an Immediate-Early Regulatory Network Response in Primary Human White Adipocytes.” BMC Genomics, vol. 19, no. 1, BioMed Central, 2018, doi:10.1186/s12864-018-5173-0.
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