Epigenetics Podcast6 Okt 2022

Enhancer Communities in Adipocyte Differentiation (Susanne Mandrup)

In this episode of the Epigenetics Podcast, we caught up with Susanne Mandrup from the University of Southern Denmark to talk about her work on the role of enhancer communities in adipocyte differentiation.

The Laboratory of Susanne Mandrup focuses on the effect of enhancers and enhancer communities on the differentiation of mesenchymal stem cell into adipocytes and osteoblasts. The team has shown that there is significant cross-talk between enhancers and that these form communities of highly interconnected enhancers. Inactive enhancers are then activated by association with these pre-existing enhancer networks to facilitate gene expression in adipocyte differentiation.

References

Siersbæk R, Rabiee A, Nielsen R, Sidoli S, Traynor S, Loft A, Poulsen LC, Rogowska-Wrzesinska A, Jensen ON, Mandrup S. Transcription factor cooperativity in early adipogenic hotspots and super-enhancers. Cell Rep. 2014 Jun 12;7(5):1443-1455. doi: 10.1016/j.celrep.2014.04.042. Epub 2014 May 22. PMID: 24857652.
Siersbæk R, Baek S, Rabiee A, Nielsen R, Traynor S, Clark N, Sandelin A, Jensen ON, Sung MH, Hager GL, Mandrup S. Molecular architecture of transcription factor hotspots in early adipogenesis. Cell Rep. 2014 Jun 12;7(5):1434-1442. doi: 10.1016/j.celrep.2014.04.043. Epub 2014 May 22. PMID: 24857666; PMCID: PMC6360525.
Siersbæk R, Madsen JGS, Javierre BM, Nielsen R, Bagge EK, Cairns J, Wingett SW, Traynor S, Spivakov M, Fraser P, Mandrup S. Dynamic Rewiring of Promoter-Anchored Chromatin Loops during Adipocyte Differentiation. Mol Cell. 2017 May 4;66(3):420-435.e5. doi: 10.1016/j.molcel.2017.04.010. PMID: 28475875.
Rauch, A., Haakonsson, A.K., Madsen, J.G.S. et al. Osteogenesis depends on commissioning of a network of stem cell transcription factors that act as repressors of adipogenesis. Nat Genet 51, 716–727 (2019). https://doi.org/10.1038/s41588-019-0359-1
Madsen, J.G.S., Madsen, M.S., Rauch, A. et al. Highly interconnected enhancer communities control lineage-determining genes in human mesenchymal stem cells. Nat Genet 52, 1227–1238 (2020). https://doi.org/10.1038/s41588-020-0709-z

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